+++ /dev/null
-{***********************************************************
-glBitmap by Steffen Xonna aka Lossy eX (2003-2008)
-http://www.opengl24.de/index.php?cat=header&file=glbitmap
-
-modified by Delphi OpenGL Community (http://delphigl.com/) (2013)
-
-------------------------------------------------------------
-The contents of this file are used with permission, subject to
-the Mozilla Public License Version 1.1 (the "License"); you may
-not use this file except in compliance with the License. You may
-obtain a copy of the License at
-http://www.mozilla.org/MPL/MPL-1.1.html
-------------------------------------------------------------
-Version 3.0.1
-------------------------------------------------------------
-History
-20-11-2013
-- refactoring of the complete library
-21-03-2010
-- The define GLB_DELPHI dosn't check versions anymore. If you say you are using delphi
- then it's your problem if that isn't true. This prevents the unit for incompatibility
- with newer versions of Delphi.
-- Problems with D2009+ resolved (Thanks noeska and all i forgot)
-- GetPixel isn't set if you are loading textures inside the constructor (Thanks Wilson)
-10-08-2008
-- AddAlphaFromglBitmap used the custom pointer instead the imagedatapointer (Thanks Wilson)
-- Additional Datapointer for functioninterface now has the name CustomData
-24-07-2008
-- AssigneAlphaToBitmap overwrites his own palette (Thanks Wilson)
-- If you load an texture from an file the property Filename will be set to the name of the file
-- Three new properties to attach custom data to the Texture objects
- - CustomName (free for use string)
- - CustomNameW (free for use widestring)
- - CustomDataPointer (free for use pointer to attach other objects or complex structures)
-27-05-2008
-- RLE TGAs loaded much faster
-26-05-2008
-- fixed some problem with reading RLE TGAs.
-21-05-2008
-- function clone now only copys data if it's assigned and now it also copies the ID
-- it seems that lazarus dont like comments in comments.
-01-05-2008
-- It's possible to set the id of the texture
-- define GLB_NO_NATIVE_GL deactivated by default
-27-04-2008
-- Now supports the following libraries
- - SDL and SDL_image
- - libPNG
- - libJPEG
-- Linux compatibillity via free pascal compatibility (delphi sources optional)
-- BMPs now loaded manuel
-- Large restructuring
-- Property DataPtr now has the name Data
-- Functions are more flexible between RGB(A) and BGR(A). RGB can be saved as Bitmap and will be saved as BGR
-- Unused Depth removed
-- Function FreeData to freeing image data added
-24-10-2007
-- ImageID flag of TGAs was ignored. (Thanks Zwoetzen)
-15-11-2006
-- Function SetBorderColor implemented (only used by opengl if wrap is set to GL_CLAMP_TO_BORDER)
-- Function AddAlphaFromValue implemented to use an fixed Value as Alphachannel
-- Function ReadOpenGLExtension is now only intern
-29-06-2006
-- pngimage now disabled by default like all other versions.
-26-06-2006
-- Setting up an anisotropic filter of 0 isnt allowed by nvidia (Thanks Ogridi)
-22-06-2006
-- Fixed some Problem with Delphi 5
-- Now uses the newest version of pngimage. Makes saving pngs much easier.
-22-03-2006
-- Property IsCompressed and Size removed. Not really supported by Spec (Thanks Ogridi)
-09-03-2006
-- Internal Format ifDepth8 added
-- function GrabScreen now supports all uncompressed formats
-31-01-2006
-- AddAlphaFromglBitmap implemented
-29-12-2005
-- LoadFromResource and LoadFromResourceId now needs an Instance and an ResourceType (for ID)
-28-12-2005
-- Width, Height and Depth internal changed to TglBitmapPixelPosition.
- property Width, Height, Depth are still existing and new property Dimension are avail
-11-12-2005
-- Added native OpenGL Support. Breaking the dglOpenGL "barrier".
-19-10-2005
-- Added function GrabScreen to class TglBitmap2D
-18-10-2005
-- Added support to Save images
-- Added function Clone to Clone Instance
-11-10-2005
-- Functions now works with Cardinals for each channel. Up to 32 Bits per channel.
- Usefull for Future
-- Several speed optimizations
-09-10-2005
-- Internal structure change. Loading of TGA, PNG and DDS improved.
- Data, format and size will now set directly with SetDataPtr.
-- AddFunc now works with all Types of Images and Formats
-- Some Funtions moved to Baseclass TglBitmap
-06-10-2005
-- Added Support to decompress DXT3 and DXT5 compressed Images.
-- Added Mapping to convert data from one format into an other.
-05-10-2005
-- Added method ConvertTo in Class TglBitmap2D. Method allows to convert every
- supported Input format (supported by GetPixel) into any uncompresed Format
-- Added Support to decompress DXT1 compressed Images.
-- SwapColors replaced by ConvertTo
-04-10-2005
-- Added Support for compressed DDSs
-- Added new internal formats (DXT1, DXT3, DXT5)
-29-09-2005
-- Parameter Components renamed to InternalFormat
-23-09-2005
-- Some AllocMem replaced with GetMem (little speed change)
-- better exception handling. Better protection from memory leaks.
-22-09-2005
-- Added support for Direct Draw Surfaces (.DDS) (uncompressed images only)
-- Added new internal formats (RGB8, RGBA8, RGBA4, RGB5A1, RGB10A2, R5G6B5)
-07-09-2005
-- Added support for Grayscale textures
-- Added internal formats (Alpha, Luminance, LuminanceAlpha, BGR8, BGRA8)
-10-07-2005
-- Added support for GL_VERSION_2_0
-- Added support for GL_EXT_texture_filter_anisotropic
-04-07-2005
-- Function FillWithColor fills the Image with one Color
-- Function LoadNormalMap added
-30-06-2005
-- ToNormalMap allows to Create an NormalMap from the Alphachannel
-- ToNormalMap now supports Sobel (nmSobel) function.
-29-06-2005
-- support for RLE Compressed RGB TGAs added
-28-06-2005
-- Class TglBitmapNormalMap added to support Normalmap generation
-- Added function ToNormalMap in class TglBitmap2D to genereate normal maps from textures.
- 3 Filters are supported. (4 Samples, 3x3 and 5x5)
-16-06-2005
-- Method LoadCubeMapClass removed
-- LoadCubeMap returnvalue is now the Texture paramter. Such as LoadTextures
-- virtual abstract method GenTexture in class TglBitmap now is protected
-12-06-2005
-- now support DescriptionFlag in LoadTga. Allows vertical flipped images to be loaded as normal
-10-06-2005
-- little enhancement for IsPowerOfTwo
-- TglBitmap1D.GenTexture now tests NPOT Textures
-06-06-2005
-- some little name changes. All properties or function with Texture in name are
- now without texture in name. We have allways texture so we dosn't name it.
-03-06-2005
-- GenTexture now tests if texture is NPOT and NPOT-Texture are supported or
- TextureTarget is GL_TEXTURE_RECTANGLE. Else it raised an exception.
-02-06-2005
-- added support for GL_ARB_texture_rectangle, GL_EXT_texture_rectangle and GL_NV_texture_rectangle
-25-04-2005
-- Function Unbind added
-- call of SetFilter or SetTextureWrap if TextureID exists results in setting properties to opengl texture.
-21-04-2005
-- class TglBitmapCubeMap added (allows to Create Cubemaps)
-29-03-2005
-- Added Support for PNG Images. (http://pngdelphi.sourceforge.net/)
- To Enable png's use the define pngimage
-22-03-2005
-- New Functioninterface added
-- Function GetPixel added
-27-11-2004
-- Property BuildMipMaps renamed to MipMap
-21-11-2004
-- property Name removed.
-- BuildMipMaps is now a set of 3 values. None, GluBuildMipmaps and SGIS_generate_mipmap
-22-05-2004
-- property name added. Only used in glForms!
-26-11-2003
-- property FreeDataAfterGenTexture is now available as default (default = true)
-- BuildMipmaps now implemented in TglBitmap1D (i've forgotten it)
-- function MoveMemory replaced with function Move (little speed change)
-- several calculations stored in variables (little speed change)
-29-09-2003
-- property BuildMipsMaps added (default = true)
- if BuildMipMaps isn't set GenTextures uses glTexImage[12]D else it use gluBuild[12]dMipmaps
-- property FreeDataAfterGenTexture added (default = true)
- if FreeDataAfterGenTexture is set the texturedata were deleted after the texture was generated.
-- parameter DisableOtherTextureUnits of Bind removed
-- parameter FreeDataAfterGeneration of GenTextures removed
-12-09-2003
-- TglBitmap dosn't delete data if class was destroyed (fixed)
-09-09-2003
-- Bind now enables TextureUnits (by params)
-- GenTextures can leave data (by param)
-- LoadTextures now optimal
-03-09-2003
-- Performance optimization in AddFunc
-- procedure Bind moved to subclasses
-- Added new Class TglBitmap1D to support real OpenGL 1D Textures
-19-08-2003
-- Texturefilter and texturewrap now also as defaults
- Minfilter = GL_LINEAR_MIPMAP_LINEAR
- Magfilter = GL_LINEAR
- Wrap(str) = GL_CLAMP_TO_EDGE
-- Added new format tfCompressed to create a compressed texture.
-- propertys IsCompressed, TextureSize and IsResident added
- IsCompressed and TextureSize only contains data from level 0
-18-08-2003
-- Added function AddFunc to add PerPixelEffects to Image
-- LoadFromFunc now based on AddFunc
-- Invert now based on AddFunc
-- SwapColors now based on AddFunc
-16-08-2003
-- Added function FlipHorz
-15-08-2003
-- Added function LaodFromFunc to create images with function
-- Added function FlipVert
-- Added internal format RGB(A) if GL_EXT_bgra or OpenGL 1.2 isn't supported
-29-07-2003
-- Added Alphafunctions to calculate alpha per function
-- Added Alpha from ColorKey using alphafunctions
-28-07-2003
-- First full functionally Version of glBitmap
-- Support for 24Bit and 32Bit TGA Pictures added
-25-07-2003
-- begin of programming
-***********************************************************}
-unit glBitmap;
-
-// Please uncomment the defines below to configure the glBitmap to your preferences.
-// If you have configured the unit you can uncomment the warning above.
-{$MESSAGE error 'Hey. I''m the glBitmap.pas and i need to be configured. My master tell me your preferences! ;)'}
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// Preferences ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// activate to enable build-in OpenGL support with statically linked methods
-// use dglOpenGL.pas if not enabled
-{.$DEFINE GLB_NATIVE_OGL_STATIC}
-
-// activate to enable build-in OpenGL support with dynamically linked methods
-// use dglOpenGL.pas if not enabled
-{.$DEFINE GLB_NATIVE_OGL_DYNAMIC}
-
-
-// activate to enable the support for SDL_surfaces
-{.$DEFINE GLB_SDL}
-
-// activate to enable the support for Delphi (including support for Delphi's (not Lazarus') TBitmap)
-{.$DEFINE GLB_DELPHI}
-
-// activate to enable the support for TLazIntfImage from Lazarus
-{.$DEFINE GLB_LAZARUS}
-
-
-
-// activate to enable the support of SDL_image to load files. (READ ONLY)
-// If you enable SDL_image all other libraries will be ignored!
-{.$DEFINE GLB_SDL_IMAGE}
-
-
-
-// activate to enable Lazarus TPortableNetworkGraphic support
-// if you enable this pngImage and libPNG will be ignored
-{.$DEFINE GLB_LAZ_PNG}
-
-// activate to enable png support with the unit pngimage -> http://pngdelphi.sourceforge.net/
-// if you enable pngimage the libPNG will be ignored
-{.$DEFINE GLB_PNGIMAGE}
-
-// activate to use the libPNG -> http://www.libpng.org/
-// You will need an aditional header -> http://www.opengl24.de/index.php?cat=header&file=libpng
-{.$DEFINE GLB_LIB_PNG}
-
-
-
-// activate to enable Lazarus TJPEGImage support
-// if you enable this delphi jpegs and libJPEG will be ignored
-{.$DEFINE GLB_LAZ_JPEG}
-
-// if you enable delphi jpegs the libJPEG will be ignored
-{.$DEFINE GLB_DELPHI_JPEG}
-
-// activate to use the libJPEG -> http://www.ijg.org/
-// You will need an aditional header -> http://www.opengl24.de/index.php?cat=header&file=libjpeg
-{.$DEFINE GLB_LIB_JPEG}
-
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// PRIVATE: do not change anything! //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// Delphi Versions
-{$IFDEF fpc}
- {$MODE Delphi}
-
- {$IFDEF CPUI386}
- {$DEFINE CPU386}
- {$ASMMODE INTEL}
- {$ENDIF}
-
- {$IFNDEF WINDOWS}
- {$linklib c}
- {$ENDIF}
-{$ENDIF}
-
-// Operation System
-{$IF DEFINED(WIN32) or DEFINED(WIN64) or DEFINED(WINDOWS)}
- {$DEFINE GLB_WIN}
-{$ELSEIF DEFINED(LINUX)}
- {$DEFINE GLB_LINUX}
-{$IFEND}
-
-// native OpenGL Support
-{$IF DEFINED(GLB_NATIVE_OGL_STATIC) OR DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- {$DEFINE GLB_NATIVE_OGL}
-{$IFEND}
-
-// checking define combinations
-//SDL Image
-{$IFDEF GLB_SDL_IMAGE}
- {$IFNDEF GLB_SDL}
- {$MESSAGE warn 'SDL_image won''t work without SDL. SDL will be activated.'}
- {$DEFINE GLB_SDL}
- {$ENDIF}
-
- {$IFDEF GLB_LAZ_PNG}
- {$MESSAGE warn 'The Lazarus TPortableNetworkGraphics will be ignored because you are using SDL_image.'}
- {$undef GLB_LAZ_PNG}
- {$ENDIF}
-
- {$IFDEF GLB_PNGIMAGE}
- {$MESSAGE warn 'The unit pngimage will be ignored because you are using SDL_image.'}
- {$undef GLB_PNGIMAGE}
- {$ENDIF}
-
- {$IFDEF GLB_LAZ_JPEG}
- {$MESSAGE warn 'The Lazarus TJPEGImage will be ignored because you are using SDL_image.'}
- {$undef GLB_LAZ_JPEG}
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI_JPEG}
- {$MESSAGE warn 'The unit JPEG will be ignored because you are using SDL_image.'}
- {$undef GLB_DELPHI_JPEG}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_PNG}
- {$MESSAGE warn 'The library libPNG will be ignored because you are using SDL_image.'}
- {$undef GLB_LIB_PNG}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_JPEG}
- {$MESSAGE warn 'The library libJPEG will be ignored because you are using SDL_image.'}
- {$undef GLB_LIB_JPEG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_READ}
-{$ENDIF}
-
-// Lazarus TPortableNetworkGraphic
-{$IFDEF GLB_LAZ_PNG}
- {$IFNDEF GLB_LAZARUS}
- {$MESSAGE warn 'Lazarus TPortableNetworkGraphic won''t work without Lazarus. Lazarus will be activated.'}
- {$DEFINE GLB_LAZARUS}
- {$ENDIF}
-
- {$IFDEF GLB_PNGIMAGE}
- {$MESSAGE warn 'The pngimage will be ignored if you are using Lazarus TPortableNetworkGraphic.'}
- {$undef GLB_PNGIMAGE}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_PNG}
- {$MESSAGE warn 'The library libPNG will be ignored if you are using Lazarus TPortableNetworkGraphic.'}
- {$undef GLB_LIB_PNG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
-{$ENDIF}
-
-// PNG Image
-{$IFDEF GLB_PNGIMAGE}
- {$IFDEF GLB_LIB_PNG}
- {$MESSAGE warn 'The library libPNG will be ignored if you are using pngimage.'}
- {$undef GLB_LIB_PNG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
-{$ENDIF}
-
-// libPNG
-{$IFDEF GLB_LIB_PNG}
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
-{$ENDIF}
-
-// Lazarus TJPEGImage
-{$IFDEF GLB_LAZ_JPEG}
- {$IFNDEF GLB_LAZARUS}
- {$MESSAGE warn 'Lazarus TJPEGImage won''t work without Lazarus. Lazarus will be activated.'}
- {$DEFINE GLB_LAZARUS}
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI_JPEG}
- {$MESSAGE warn 'The Delphi JPEGImage will be ignored if you are using the Lazarus TJPEGImage.'}
- {$undef GLB_DELPHI_JPEG}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_JPEG}
- {$MESSAGE warn 'The library libJPEG will be ignored if you are using the Lazarus TJPEGImage.'}
- {$undef GLB_LIB_JPEG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
-{$ENDIF}
-
-// JPEG Image
-{$IFDEF GLB_DELPHI_JPEG}
- {$IFDEF GLB_LIB_JPEG}
- {$MESSAGE warn 'The library libJPEG will be ignored if you are using the unit JPEG.'}
- {$undef GLB_LIB_JPEG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
-{$ENDIF}
-
-// libJPEG
-{$IFDEF GLB_LIB_JPEG}
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
-{$ENDIF}
-
-// native OpenGL
-{$IF DEFINED(GLB_NATIVE_OGL_STATIC) AND DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- {$MESSAGE warn 'GLB_NATIVE_OGL_STATIC will be ignored because you enabled GLB_NATIVE_OGL_DYNAMIC'}
-{$IFEND}
-
-// general options
-{$EXTENDEDSYNTAX ON}
-{$LONGSTRINGS ON}
-{$ALIGN ON}
-{$IFNDEF FPC}
- {$OPTIMIZATION ON}
-{$ENDIF}
-
-interface
-
-uses
- {$IFNDEF GLB_NATIVE_OGL} dglOpenGL, {$ENDIF}
- {$IF DEFINED(GLB_WIN) AND
- (DEFINED(GLB_NATIVE_OGL) OR
- DEFINED(GLB_DELPHI))} windows, {$IFEND}
-
- {$IFDEF GLB_SDL} SDL, {$ENDIF}
- {$IFDEF GLB_LAZARUS} IntfGraphics, GraphType, Graphics, {$ENDIF}
- {$IFDEF GLB_DELPHI} Dialogs, Graphics, Types, {$ENDIF}
-
- {$IFDEF GLB_SDL_IMAGE} SDL_image, {$ENDIF}
- {$IFDEF GLB_PNGIMAGE} pngimage, {$ENDIF}
- {$IFDEF GLB_LIB_PNG} libPNG, {$ENDIF}
- {$IFDEF GLB_DELPHI_JPEG} JPEG, {$ENDIF}
- {$IFDEF GLB_LIB_JPEG} libJPEG, {$ENDIF}
-
- Classes, SysUtils;
-
-{$IFDEF GLB_NATIVE_OGL}
-const
- GL_TRUE = 1;
- GL_FALSE = 0;
-
- GL_ZERO = 0;
- GL_ONE = 1;
-
- GL_VERSION = $1F02;
- GL_EXTENSIONS = $1F03;
-
- GL_TEXTURE_1D = $0DE0;
- GL_TEXTURE_2D = $0DE1;
- GL_TEXTURE_RECTANGLE = $84F5;
-
- GL_NORMAL_MAP = $8511;
- GL_TEXTURE_CUBE_MAP = $8513;
- GL_REFLECTION_MAP = $8512;
- GL_TEXTURE_CUBE_MAP_POSITIVE_X = $8515;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_X = $8516;
- GL_TEXTURE_CUBE_MAP_POSITIVE_Y = $8517;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Y = $8518;
- GL_TEXTURE_CUBE_MAP_POSITIVE_Z = $8519;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Z = $851A;
-
- GL_TEXTURE_WIDTH = $1000;
- GL_TEXTURE_HEIGHT = $1001;
- GL_TEXTURE_INTERNAL_FORMAT = $1003;
- GL_TEXTURE_SWIZZLE_RGBA = $8E46;
-
- GL_S = $2000;
- GL_T = $2001;
- GL_R = $2002;
- GL_Q = $2003;
-
- GL_TEXTURE_GEN_S = $0C60;
- GL_TEXTURE_GEN_T = $0C61;
- GL_TEXTURE_GEN_R = $0C62;
- GL_TEXTURE_GEN_Q = $0C63;
-
- GL_RED = $1903;
- GL_GREEN = $1904;
- GL_BLUE = $1905;
-
- GL_ALPHA = $1906;
- GL_ALPHA4 = $803B;
- GL_ALPHA8 = $803C;
- GL_ALPHA12 = $803D;
- GL_ALPHA16 = $803E;
-
- GL_LUMINANCE = $1909;
- GL_LUMINANCE4 = $803F;
- GL_LUMINANCE8 = $8040;
- GL_LUMINANCE12 = $8041;
- GL_LUMINANCE16 = $8042;
-
- GL_LUMINANCE_ALPHA = $190A;
- GL_LUMINANCE4_ALPHA4 = $8043;
- GL_LUMINANCE6_ALPHA2 = $8044;
- GL_LUMINANCE8_ALPHA8 = $8045;
- GL_LUMINANCE12_ALPHA4 = $8046;
- GL_LUMINANCE12_ALPHA12 = $8047;
- GL_LUMINANCE16_ALPHA16 = $8048;
-
- GL_RGB = $1907;
- GL_BGR = $80E0;
- GL_R3_G3_B2 = $2A10;
- GL_RGB4 = $804F;
- GL_RGB5 = $8050;
- GL_RGB565 = $8D62;
- GL_RGB8 = $8051;
- GL_RGB10 = $8052;
- GL_RGB12 = $8053;
- GL_RGB16 = $8054;
-
- GL_RGBA = $1908;
- GL_BGRA = $80E1;
- GL_RGBA2 = $8055;
- GL_RGBA4 = $8056;
- GL_RGB5_A1 = $8057;
- GL_RGBA8 = $8058;
- GL_RGB10_A2 = $8059;
- GL_RGBA12 = $805A;
- GL_RGBA16 = $805B;
-
- GL_DEPTH_COMPONENT = $1902;
- GL_DEPTH_COMPONENT16 = $81A5;
- GL_DEPTH_COMPONENT24 = $81A6;
- GL_DEPTH_COMPONENT32 = $81A7;
-
- GL_COMPRESSED_RGB = $84ED;
- GL_COMPRESSED_RGBA = $84EE;
- GL_COMPRESSED_RGB_S3TC_DXT1_EXT = $83F0;
- GL_COMPRESSED_RGBA_S3TC_DXT1_EXT = $83F1;
- GL_COMPRESSED_RGBA_S3TC_DXT3_EXT = $83F2;
- GL_COMPRESSED_RGBA_S3TC_DXT5_EXT = $83F3;
-
- GL_UNSIGNED_BYTE = $1401;
- GL_UNSIGNED_BYTE_3_3_2 = $8032;
- GL_UNSIGNED_BYTE_2_3_3_REV = $8362;
-
- GL_UNSIGNED_SHORT = $1403;
- GL_UNSIGNED_SHORT_5_6_5 = $8363;
- GL_UNSIGNED_SHORT_4_4_4_4 = $8033;
- GL_UNSIGNED_SHORT_5_5_5_1 = $8034;
- GL_UNSIGNED_SHORT_5_6_5_REV = $8364;
- GL_UNSIGNED_SHORT_4_4_4_4_REV = $8365;
- GL_UNSIGNED_SHORT_1_5_5_5_REV = $8366;
-
- GL_UNSIGNED_INT = $1405;
- GL_UNSIGNED_INT_8_8_8_8 = $8035;
- GL_UNSIGNED_INT_10_10_10_2 = $8036;
- GL_UNSIGNED_INT_8_8_8_8_REV = $8367;
- GL_UNSIGNED_INT_2_10_10_10_REV = $8368;
-
- { Texture Filter }
- GL_TEXTURE_MAG_FILTER = $2800;
- GL_TEXTURE_MIN_FILTER = $2801;
- GL_NEAREST = $2600;
- GL_NEAREST_MIPMAP_NEAREST = $2700;
- GL_NEAREST_MIPMAP_LINEAR = $2702;
- GL_LINEAR = $2601;
- GL_LINEAR_MIPMAP_NEAREST = $2701;
- GL_LINEAR_MIPMAP_LINEAR = $2703;
-
- { Texture Wrap }
- GL_TEXTURE_WRAP_S = $2802;
- GL_TEXTURE_WRAP_T = $2803;
- GL_TEXTURE_WRAP_R = $8072;
- GL_CLAMP = $2900;
- GL_REPEAT = $2901;
- GL_CLAMP_TO_EDGE = $812F;
- GL_CLAMP_TO_BORDER = $812D;
- GL_MIRRORED_REPEAT = $8370;
-
- { Other }
- GL_GENERATE_MIPMAP = $8191;
- GL_TEXTURE_BORDER_COLOR = $1004;
- GL_MAX_TEXTURE_SIZE = $0D33;
- GL_PACK_ALIGNMENT = $0D05;
- GL_UNPACK_ALIGNMENT = $0CF5;
-
- GL_TEXTURE_MAX_ANISOTROPY_EXT = $84FE;
- GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT = $84FF;
- GL_MAX_CUBE_MAP_TEXTURE_SIZE = $851C;
- GL_TEXTURE_GEN_MODE = $2500;
-
-{$IF DEFINED(GLB_WIN)}
- libglu = 'glu32.dll';
- libopengl = 'opengl32.dll';
-{$ELSEIF DEFINED(GLB_LINUX)}
- libglu = 'libGLU.so.1';
- libopengl = 'libGL.so.1';
-{$IFEND}
-
-type
- GLboolean = BYTEBOOL;
- GLint = Integer;
- GLsizei = Integer;
- GLuint = Cardinal;
- GLfloat = Single;
- GLenum = Cardinal;
-
- PGLvoid = Pointer;
- PGLboolean = ^GLboolean;
- PGLint = ^GLint;
- PGLuint = ^GLuint;
- PGLfloat = ^GLfloat;
-
- TglCompressedTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglCompressedTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; height: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetCompressedTexImage = procedure(target: GLenum; level: GLint; img: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
-{$IF DEFINED(GLB_WIN)}
- TwglGetProcAddress = function (ProcName: PAnsiChar): Pointer; stdcall;
-{$ELSEIF DEFINED(GLB_LINUX)}
- TglXGetProcAddress = function(ProcName: PAnsiChar): Pointer; cdecl;
- TglXGetProcAddressARB = function(const name: PAnsiChar): pointer; cdecl;
-{$IFEND}
-
-{$IF DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- TglEnable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglDisable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglGetString = function(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetIntegerv = procedure(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglTexParameteri = procedure(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglTexParameteriv = procedure(target: GLenum; pname: GLenum; const params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglTexParameterfv = procedure(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexParameteriv = procedure(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexParameterfv = procedure(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexLevelParameteriv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexLevelParameterfv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglTexGeni = procedure(coord: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGenTextures = procedure(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglBindTexture = procedure(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglDeleteTextures = procedure(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglAreTexturesResident = function(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglReadPixels = procedure(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglPixelStorei = procedure(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexImage = procedure(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TgluBuild1DMipmaps = function(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TgluBuild2DMipmaps = function(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
-{$ELSEIF DEFINED(GLB_NATIVE_OGL_STATIC)}
- procedure glEnable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glDisable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function glGetString(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetIntegerv(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexParameteri(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glTexParameteriv(target: GLenum; pname: GLenum; const params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glTexParameterfv(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexParameteriv(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexParameterfv(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexLevelParameteriv(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexLevelParameterfv(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexGeni(coord: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGenTextures(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glBindTexture(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glDeleteTextures(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function glAreTexturesResident(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glReadPixels(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glPixelStorei(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexImage1D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glTexImage2D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexImage(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function gluBuild1DMipmaps(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
- function gluBuild2DMipmaps(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
-{$IFEND}
-
-var
- GL_VERSION_1_2,
- GL_VERSION_1_3,
- GL_VERSION_1_4,
- GL_VERSION_2_0,
- GL_VERSION_3_3,
-
- GL_SGIS_generate_mipmap,
-
- GL_ARB_texture_border_clamp,
- GL_ARB_texture_mirrored_repeat,
- GL_ARB_texture_rectangle,
- GL_ARB_texture_non_power_of_two,
- GL_ARB_texture_swizzle,
- GL_ARB_texture_cube_map,
-
- GL_IBM_texture_mirrored_repeat,
-
- GL_NV_texture_rectangle,
-
- GL_EXT_texture_edge_clamp,
- GL_EXT_texture_rectangle,
- GL_EXT_texture_swizzle,
- GL_EXT_texture_cube_map,
- GL_EXT_texture_filter_anisotropic: Boolean;
-
- glCompressedTexImage1D: TglCompressedTexImage1D;
- glCompressedTexImage2D: TglCompressedTexImage2D;
- glGetCompressedTexImage: TglGetCompressedTexImage;
-
-{$IF DEFINED(GLB_WIN)}
- wglGetProcAddress: TwglGetProcAddress;
-{$ELSEIF DEFINED(GLB_LINUX)}
- glXGetProcAddress: TglXGetProcAddress;
- glXGetProcAddressARB: TglXGetProcAddress;
-{$IFEND}
-
-{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- glEnable: TglEnable;
- glDisable: TglDisable;
-
- glGetString: TglGetString;
- glGetIntegerv: TglGetIntegerv;
-
- glTexParameteri: TglTexParameteri;
- glTexParameteriv: TglTexParameteriv;
- glTexParameterfv: TglTexParameterfv;
- glGetTexParameteriv: TglGetTexParameteriv;
- glGetTexParameterfv: TglGetTexParameterfv;
- glGetTexLevelParameteriv: TglGetTexLevelParameteriv;
- glGetTexLevelParameterfv: TglGetTexLevelParameterfv;
-
- glTexGeni: TglTexGeni;
- glGenTextures: TglGenTextures;
- glBindTexture: TglBindTexture;
- glDeleteTextures: TglDeleteTextures;
-
- glAreTexturesResident: TglAreTexturesResident;
- glReadPixels: TglReadPixels;
- glPixelStorei: TglPixelStorei;
-
- glTexImage1D: TglTexImage1D;
- glTexImage2D: TglTexImage2D;
- glGetTexImage: TglGetTexImage;
-
- gluBuild1DMipmaps: TgluBuild1DMipmaps;
- gluBuild2DMipmaps: TgluBuild2DMipmaps;
-{$ENDIF}
-{$ENDIF}
-
-type
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapFormat = (
- tfEmpty = 0, //must be smallest value!
-
- tfAlpha4,
- tfAlpha8,
- tfAlpha12,
- tfAlpha16,
-
- tfLuminance4,
- tfLuminance8,
- tfLuminance12,
- tfLuminance16,
-
- tfLuminance4Alpha4,
- tfLuminance6Alpha2,
- tfLuminance8Alpha8,
- tfLuminance12Alpha4,
- tfLuminance12Alpha12,
- tfLuminance16Alpha16,
-
- tfR3G3B2,
- tfRGB4,
- tfR5G6B5,
- tfRGB5,
- tfRGB8,
- tfRGB10,
- tfRGB12,
- tfRGB16,
-
- tfRGBA2,
- tfRGBA4,
- tfRGB5A1,
- tfRGBA8,
- tfRGB10A2,
- tfRGBA12,
- tfRGBA16,
-
- tfBGR4,
- tfB5G6R5,
- tfBGR5,
- tfBGR8,
- tfBGR10,
- tfBGR12,
- tfBGR16,
-
- tfBGRA2,
- tfBGRA4,
- tfBGR5A1,
- tfBGRA8,
- tfBGR10A2,
- tfBGRA12,
- tfBGRA16,
-
- tfDepth16,
- tfDepth24,
- tfDepth32,
-
- tfS3tcDtx1RGBA,
- tfS3tcDtx3RGBA,
- tfS3tcDtx5RGBA
- );
-
- TglBitmapFileType = (
- {$IFDEF GLB_SUPPORT_PNG_WRITE} ftPNG, {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}ftJPEG, {$ENDIF}
- ftDDS,
- ftTGA,
- ftBMP);
- TglBitmapFileTypes = set of TglBitmapFileType;
-
- TglBitmapMipMap = (
- mmNone,
- mmMipmap,
- mmMipmapGlu);
-
- TglBitmapNormalMapFunc = (
- nm4Samples,
- nmSobel,
- nm3x3,
- nm5x5);
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- EglBitmap = class(Exception);
- EglBitmapNotSupported = class(Exception);
- EglBitmapSizeToLarge = class(EglBitmap);
- EglBitmapNonPowerOfTwo = class(EglBitmap);
- EglBitmapUnsupportedFormat = class(EglBitmap)
- public
- constructor Create(const aFormat: TglBitmapFormat); overload;
- constructor Create(const aMsg: String; const aFormat: TglBitmapFormat); overload;
- end;
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapColorRec = packed record
- case Integer of
- 0: (r, g, b, a: Cardinal);
- 1: (arr: array[0..3] of Cardinal);
- end;
-
- TglBitmapPixelData = packed record
- Data, Range: TglBitmapColorRec;
- Format: TglBitmapFormat;
- end;
- PglBitmapPixelData = ^TglBitmapPixelData;
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapPixelPositionFields = set of (ffX, ffY);
- TglBitmapPixelPosition = record
- Fields : TglBitmapPixelPositionFields;
- X : Word;
- Y : Word;
- end;
-
- TglBitmapFormatDescriptor = class(TObject)
- protected
- function GetIsCompressed: Boolean; virtual; abstract;
- function GetHasRed: Boolean; virtual; abstract;
- function GetHasGreen: Boolean; virtual; abstract;
- function GetHasBlue: Boolean; virtual; abstract;
- function GetHasAlpha: Boolean; virtual; abstract;
-
- function GetglDataFormat: GLenum; virtual; abstract;
- function GetglFormat: GLenum; virtual; abstract;
- function GetglInternalFormat: GLenum; virtual; abstract;
- public
- property IsCompressed: Boolean read GetIsCompressed;
- property HasRed: Boolean read GetHasRed;
- property HasGreen: Boolean read GetHasGreen;
- property HasBlue: Boolean read GetHasBlue;
- property HasAlpha: Boolean read GetHasAlpha;
-
- property glFormat: GLenum read GetglFormat;
- property glInternalFormat: GLenum read GetglInternalFormat;
- property glDataFormat: GLenum read GetglDataFormat;
- public
- class function GetByFormat(const aInternalFormat: GLenum): TglBitmapFormatDescriptor;
- end;
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap = class;
- TglBitmapFunctionRec = record
- Sender: TglBitmap;
- Size: TglBitmapPixelPosition;
- Position: TglBitmapPixelPosition;
- Source: TglBitmapPixelData;
- Dest: TglBitmapPixelData;
- Args: Pointer;
- end;
- TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec);
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap = class
- private
- function GetFormatDesc: TglBitmapFormatDescriptor;
- protected
- fID: GLuint;
- fTarget: GLuint;
- fAnisotropic: Integer;
- fDeleteTextureOnFree: Boolean;
- fFreeDataOnDestroy: Boolean;
- fFreeDataAfterGenTexture: Boolean;
- fData: PByte;
- fIsResident: GLboolean;
- fBorderColor: array[0..3] of Single;
-
- fDimension: TglBitmapPixelPosition;
- fMipMap: TglBitmapMipMap;
- fFormat: TglBitmapFormat;
-
- // Mapping
- fPixelSize: Integer;
- fRowSize: Integer;
-
- // Filtering
- fFilterMin: GLenum;
- fFilterMag: GLenum;
-
- // TexturWarp
- fWrapS: GLenum;
- fWrapT: GLenum;
- fWrapR: GLenum;
-
- //Swizzle
- fSwizzle: array[0..3] of GLenum;
-
- // CustomData
- fFilename: String;
- fCustomName: String;
- fCustomNameW: WideString;
- fCustomData: Pointer;
-
- //Getter
- function GetWidth: Integer; virtual;
- function GetHeight: Integer; virtual;
-
- function GetFileWidth: Integer; virtual;
- function GetFileHeight: Integer; virtual;
-
- //Setter
- procedure SetCustomData(const aValue: Pointer);
- procedure SetCustomName(const aValue: String);
- procedure SetCustomNameW(const aValue: WideString);
- procedure SetFreeDataOnDestroy(const aValue: Boolean);
- procedure SetDeleteTextureOnFree(const aValue: Boolean);
- procedure SetFormat(const aValue: TglBitmapFormat);
- procedure SetFreeDataAfterGenTexture(const aValue: Boolean);
- procedure SetID(const aValue: Cardinal);
- procedure SetMipMap(const aValue: TglBitmapMipMap);
- procedure SetTarget(const aValue: Cardinal);
- procedure SetAnisotropic(const aValue: Integer);
-
- procedure CreateID;
- procedure SetupParameters(out aBuildWithGlu: Boolean);
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = -1; const aHeight: Integer = -1); virtual; //be careful, aData could be freed by this method
- procedure GenTexture(const aTestTextureSize: Boolean = true); virtual; abstract;
-
- function FlipHorz: Boolean; virtual;
- function FlipVert: Boolean; virtual;
-
- property Width: Integer read GetWidth;
- property Height: Integer read GetHeight;
-
- property FileWidth: Integer read GetFileWidth;
- property FileHeight: Integer read GetFileHeight;
- public
- //Properties
- property ID: Cardinal read fID write SetID;
- property Target: Cardinal read fTarget write SetTarget;
- property Format: TglBitmapFormat read fFormat write SetFormat;
- property MipMap: TglBitmapMipMap read fMipMap write SetMipMap;
- property Anisotropic: Integer read fAnisotropic write SetAnisotropic;
-
- property FormatDesc: TglBitmapFormatDescriptor read GetFormatDesc;
-
- property Filename: String read fFilename;
- property CustomName: String read fCustomName write SetCustomName;
- property CustomNameW: WideString read fCustomNameW write SetCustomNameW;
- property CustomData: Pointer read fCustomData write SetCustomData;
-
- property DeleteTextureOnFree: Boolean read fDeleteTextureOnFree write SetDeleteTextureOnFree;
- property FreeDataOnDestroy: Boolean read fFreeDataOnDestroy write SetFreeDataOnDestroy;
- property FreeDataAfterGenTexture: Boolean read fFreeDataAfterGenTexture write SetFreeDataAfterGenTexture;
-
- property Dimension: TglBitmapPixelPosition read fDimension;
- property Data: PByte read fData;
- property IsResident: GLboolean read fIsResident;
-
- procedure AfterConstruction; override;
- procedure BeforeDestruction; override;
-
- procedure PrepareResType(var aResource: String; var aResType: PChar);
-
- //Load
- procedure LoadFromFile(const aFilename: String);
- procedure LoadFromStream(const aStream: TStream); virtual;
- procedure LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer = nil);
- procedure LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar = nil);
- procedure LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
-
- //Save
- procedure SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
- procedure SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType); virtual;
-
- //Convert
- function AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer = nil): Boolean; overload;
- function AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
- const aFormat: TglBitmapFormat; const aArgs: Pointer = nil): Boolean; overload;
- public
- //Alpha & Co
- {$IFDEF GLB_SDL}
- function AssignToSurface(out aSurface: PSDL_Surface): Boolean;
- function AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
- function AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
- function AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil;
- const aArgs: Pointer = nil): Boolean;
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI}
- function AssignToBitmap(const aBitmap: TBitmap): Boolean;
- function AssignFromBitmap(const aBitmap: TBitmap): Boolean;
- function AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
- function AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction = nil;
- const aArgs: Pointer = nil): Boolean;
- {$ENDIF}
-
- {$IFDEF GLB_LAZARUS}
- function AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
- function AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
- function AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
- function AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction = nil;
- const aArgs: Pointer = nil): Boolean;
- {$ENDIF}
-
- function AddAlphaFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar = nil;
- const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
-
- function AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer = nil): Boolean; virtual;
- function AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
-
- function AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte = 0): Boolean;
- function AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal = 0): Boolean;
- function AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single = 0): Boolean;
-
- function AddAlphaFromValue(const aAlpha: Byte): Boolean;
- function AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
- function AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
-
- function RemoveAlpha: Boolean; virtual;
- public
- //Common
- function Clone: TglBitmap;
- function ConvertTo(const aFormat: TglBitmapFormat): Boolean; virtual;
- procedure Invert(const aUseRGB: Boolean = true; const aUseAlpha: Boolean = false);
- procedure SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
- procedure FreeData;
-
- //ColorFill
- procedure FillWithColor(const aRed, aGreen, aBlue: Byte; const aAlpha: Byte = 255);
- procedure FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal = $FFFFFFFF);
- procedure FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha : Single = 1);
-
- //TexParameters
- procedure SetFilter(const aMin, aMag: GLenum);
- procedure SetWrap(
- const S: GLenum = GL_CLAMP_TO_EDGE;
- const T: GLenum = GL_CLAMP_TO_EDGE;
- const R: GLenum = GL_CLAMP_TO_EDGE);
- procedure SetSwizzle(const r, g, b, a: GLenum);
-
- procedure Bind(const aEnableTextureUnit: Boolean = true); virtual;
- procedure Unbind(const aDisableTextureUnit: Boolean = true); virtual;
-
- //Constructors
- constructor Create; overload;
- constructor Create(const aFileName: String); overload;
- constructor Create(const aStream: TStream); overload;
- constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; aData: PByte = nil); overload;
- constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer = nil); overload;
- constructor Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil); overload;
- constructor Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar); overload;
- private
- {$IFDEF GLB_SUPPORT_PNG_READ} function LoadPNG(const aStream: TStream): Boolean; virtual; {$ENDIF}
- {$ifdef GLB_SUPPORT_PNG_WRITE} procedure SavePNG(const aStream: TStream); virtual; {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_READ} function LoadJPEG(const aStream: TStream): Boolean; virtual; {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE} procedure SaveJPEG(const aStream: TStream); virtual; {$ENDIF}
-
- function LoadBMP(const aStream: TStream): Boolean; virtual;
- procedure SaveBMP(const aStream: TStream); virtual;
-
- function LoadTGA(const aStream: TStream): Boolean; virtual;
- procedure SaveTGA(const aStream: TStream); virtual;
-
- function LoadDDS(const aStream: TStream): Boolean; virtual;
- procedure SaveDDS(const aStream: TStream); virtual;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap1D = class(TglBitmap)
- protected
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
- procedure UploadData(const aBuildWithGlu: Boolean);
- public
- property Width;
- procedure AfterConstruction; override;
- function FlipHorz: Boolean; override;
- procedure GenTexture(const aTestTextureSize: Boolean = true); override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap2D = class(TglBitmap)
- protected
- fLines: array of PByte;
- function GetScanline(const aIndex: Integer): Pointer;
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
- procedure UploadData(const aTarget: GLenum; const aBuildWithGlu: Boolean);
- public
- property Width;
- property Height;
- property Scanline[const aIndex: Integer]: Pointer read GetScanline;
-
- procedure AfterConstruction; override;
-
- procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
- procedure GetDataFromTexture;
- procedure GenTexture(const aTestTextureSize: Boolean = true); override;
-
- function FlipHorz: Boolean; override;
- function FlipVert: Boolean; override;
-
- procedure ToNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3;
- const aScale: Single = 2; const aUseAlpha: Boolean = false);
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapCubeMap = class(TglBitmap2D)
- protected
- fGenMode: Integer;
- procedure GenTexture(const aTestTextureSize: Boolean = true); reintroduce;
- public
- procedure AfterConstruction; override;
- procedure GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean = true);
- procedure Bind(const aEnableTexCoordsGen: Boolean = true; const aEnableTextureUnit: Boolean = true); reintroduce; virtual;
- procedure Unbind(const aDisableTexCoordsGen: Boolean = true; const aDisableTextureUnit: Boolean = true); reintroduce; virtual;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapNormalMap = class(TglBitmapCubeMap)
- public
- procedure AfterConstruction; override;
- procedure GenerateNormalMap(const aSize: Integer = 32; const aTestTextureSize: Boolean = true);
- end;
-
-const
- NULL_SIZE: TglBitmapPixelPosition = (Fields: []; X: 0; Y: 0);
-
-procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
-procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
-procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
-procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
-procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
-procedure glBitmapSetDefaultWrap(
- const S: Cardinal = GL_CLAMP_TO_EDGE;
- const T: Cardinal = GL_CLAMP_TO_EDGE;
- const R: Cardinal = GL_CLAMP_TO_EDGE);
-
-function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
-function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
-function glBitmapGetDefaultMipmap: TglBitmapMipMap;
-function glBitmapGetDefaultFormat: TglBitmapFormat;
-procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal);
-procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal);
-
-function glBitmapPosition(X: Integer = -1; Y: Integer = -1): TglBitmapPixelPosition;
-function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
-function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
-
-var
- glBitmapDefaultDeleteTextureOnFree: Boolean;
- glBitmapDefaultFreeDataAfterGenTextures: Boolean;
- glBitmapDefaultFormat: TglBitmapFormat;
- glBitmapDefaultMipmap: TglBitmapMipMap;
- glBitmapDefaultFilterMin: Cardinal;
- glBitmapDefaultFilterMag: Cardinal;
- glBitmapDefaultWrapS: Cardinal;
- glBitmapDefaultWrapT: Cardinal;
- glBitmapDefaultWrapR: Cardinal;
- glDefaultSwizzle: array[0..3] of GLenum;
-
-{$IFDEF GLB_DELPHI}
-function CreateGrayPalette: HPALETTE;
-{$ENDIF}
-
-implementation
-
-uses
- Math, syncobjs, typinfo
- {$IF DEFINED(GLB_SUPPORT_JPEG_READ) AND DEFINED(GLB_LAZ_JPEG)}, FPReadJPEG{$IFEND};
-
-type
-{$IFNDEF fpc}
- QWord = System.UInt64;
- PQWord = ^QWord;
-
- PtrInt = Longint;
- PtrUInt = DWord;
-{$ENDIF}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TShiftRec = packed record
- case Integer of
- 0: (r, g, b, a: Byte);
- 1: (arr: array[0..3] of Byte);
- end;
-
- TFormatDescriptor = class(TglBitmapFormatDescriptor)
- private
- function GetRedMask: QWord;
- function GetGreenMask: QWord;
- function GetBlueMask: QWord;
- function GetAlphaMask: QWord;
- protected
- fFormat: TglBitmapFormat;
- fWithAlpha: TglBitmapFormat;
- fWithoutAlpha: TglBitmapFormat;
- fRGBInverted: TglBitmapFormat;
- fUncompressed: TglBitmapFormat;
- fPixelSize: Single;
- fIsCompressed: Boolean;
-
- fRange: TglBitmapColorRec;
- fShift: TShiftRec;
-
- fglFormat: GLenum;
- fglInternalFormat: GLenum;
- fglDataFormat: GLenum;
-
- function GetIsCompressed: Boolean; override;
- function GetHasRed: Boolean; override;
- function GetHasGreen: Boolean; override;
- function GetHasBlue: Boolean; override;
- function GetHasAlpha: Boolean; override;
-
- function GetglFormat: GLenum; override;
- function GetglInternalFormat: GLenum; override;
- function GetglDataFormat: GLenum; override;
-
- function GetComponents: Integer; virtual;
- public
- property Format: TglBitmapFormat read fFormat;
- property WithAlpha: TglBitmapFormat read fWithAlpha;
- property WithoutAlpha: TglBitmapFormat read fWithoutAlpha;
- property RGBInverted: TglBitmapFormat read fRGBInverted;
- property Components: Integer read GetComponents;
- property PixelSize: Single read fPixelSize;
-
- property Range: TglBitmapColorRec read fRange;
- property Shift: TShiftRec read fShift;
-
- property RedMask: QWord read GetRedMask;
- property GreenMask: QWord read GetGreenMask;
- property BlueMask: QWord read GetBlueMask;
- property AlphaMask: QWord read GetAlphaMask;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); virtual; abstract;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); virtual; abstract;
-
- function GetSize(const aSize: TglBitmapPixelPosition): Integer; overload; virtual;
- function GetSize(const aWidth, aHeight: Integer): Integer; overload; virtual;
-
- function CreateMappingData: Pointer; virtual;
- procedure FreeMappingData(var aMappingData: Pointer); virtual;
-
- function IsEmpty: Boolean; virtual;
- function MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean; virtual;
-
- procedure PreparePixel(out aPixel: TglBitmapPixelData); virtual;
-
- constructor Create; virtual;
- public
- class procedure Init;
- class function Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
- class function GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
- class procedure Clear;
- class procedure Finalize;
- end;
- TFormatDescriptorClass = class of TFormatDescriptor;
-
- TfdEmpty = class(TFormatDescriptor);
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminance_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdUniversal_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminanceAlpha_UB2 = class(TfdLuminance_UB1) //2* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGB_UB3 = class(TFormatDescriptor) //3* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGR_UB3 = class(TFormatDescriptor) //3* unsigned byte (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGBA_UB4 = class(TfdRGB_UB3) //4* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGRA_UB4 = class(TfdBGR_UB3) //4* unsigned byte (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminance_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdUniversal_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdDepth_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminanceAlpha_US2 = class(TfdLuminance_US1) //2* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGB_US3 = class(TFormatDescriptor) //3* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGR_US3 = class(TFormatDescriptor) //3* unsigned short (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGBA_US4 = class(TfdRGB_US3) //4* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGRA_US4 = class(TfdBGR_US3) //4* unsigned short (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdUniversal_UI1 = class(TFormatDescriptor) //1* unsigned int
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdDepth_UI1 = class(TFormatDescriptor) //1* unsigned int
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha4 = class(TfdAlpha_UB1)
- constructor Create; override;
- end;
-
- TfdAlpha8 = class(TfdAlpha_UB1)
- constructor Create; override;
- end;
-
- TfdAlpha12 = class(TfdAlpha_US1)
- constructor Create; override;
- end;
-
- TfdAlpha16 = class(TfdAlpha_US1)
- constructor Create; override;
- end;
-
- TfdLuminance4 = class(TfdLuminance_UB1)
- constructor Create; override;
- end;
-
- TfdLuminance8 = class(TfdLuminance_UB1)
- constructor Create; override;
- end;
-
- TfdLuminance12 = class(TfdLuminance_US1)
- constructor Create; override;
- end;
-
- TfdLuminance16 = class(TfdLuminance_US1)
- constructor Create; override;
- end;
-
- TfdLuminance4Alpha4 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance6Alpha2 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance8Alpha8 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance12Alpha4 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdLuminance12Alpha12 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdLuminance16Alpha16 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdR3G3B2 = class(TfdUniversal_UB1)
- constructor Create; override;
- end;
-
- TfdRGB4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdR5G6B5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB8 = class(TfdRGB_UB3)
- constructor Create; override;
- end;
-
- TfdRGB10 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdRGB12 = class(TfdRGB_US3)
- constructor Create; override;
- end;
-
- TfdRGB16 = class(TfdRGB_US3)
- constructor Create; override;
- end;
-
- TfdRGBA2 = class(TfdRGBA_UB4)
- constructor Create; override;
- end;
-
- TfdRGBA4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB5A1 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGBA8 = class(TfdRGBA_UB4)
- constructor Create; override;
- end;
-
- TfdRGB10A2 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdRGBA12 = class(TfdRGBA_US4)
- constructor Create; override;
- end;
-
- TfdRGBA16 = class(TfdRGBA_US4)
- constructor Create; override;
- end;
-
- TfdBGR4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdB5G6R5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR8 = class(TfdBGR_UB3)
- constructor Create; override;
- end;
-
- TfdBGR10 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdBGR12 = class(TfdBGR_US3)
- constructor Create; override;
- end;
-
- TfdBGR16 = class(TfdBGR_US3)
- constructor Create; override;
- end;
-
- TfdBGRA2 = class(TfdBGRA_UB4)
- constructor Create; override;
- end;
-
- TfdBGRA4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR5A1 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGRA8 = class(TfdBGRA_UB4)
- constructor Create; override;
- end;
-
- TfdBGR10A2 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdBGRA12 = class(TfdBGRA_US4)
- constructor Create; override;
- end;
-
- TfdBGRA16 = class(TfdBGRA_US4)
- constructor Create; override;
- end;
-
- TfdDepth16 = class(TfdDepth_US1)
- constructor Create; override;
- end;
-
- TfdDepth24 = class(TfdDepth_UI1)
- constructor Create; override;
- end;
-
- TfdDepth32 = class(TfdDepth_UI1)
- constructor Create; override;
- end;
-
- TfdS3tcDtx1RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdS3tcDtx3RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdS3tcDtx5RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TbmpBitfieldFormat = class(TFormatDescriptor)
- private
- procedure SetRedMask (const aValue: QWord);
- procedure SetGreenMask(const aValue: QWord);
- procedure SetBlueMask (const aValue: QWord);
- procedure SetAlphaMask(const aValue: QWord);
-
- procedure Update(aMask: QWord; out aRange: Cardinal; out aShift: Byte);
- public
- property RedMask: QWord read GetRedMask write SetRedMask;
- property GreenMask: QWord read GetGreenMask write SetGreenMask;
- property BlueMask: QWord read GetBlueMask write SetBlueMask;
- property AlphaMask: QWord read GetAlphaMask write SetAlphaMask;
-
- property PixelSize: Single read fPixelSize write fPixelSize;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TbmpColorTableEnty = packed record
- b, g, r, a: Byte;
- end;
- TbmpColorTable = array of TbmpColorTableEnty;
- TbmpColorTableFormat = class(TFormatDescriptor)
- private
- fColorTable: TbmpColorTable;
- public
- property PixelSize: Single read fPixelSize write fPixelSize;
- property ColorTable: TbmpColorTable read fColorTable write fColorTable;
- property Range: TglBitmapColorRec read fRange write fRange;
- property Shift: TShiftRec read fShift write fShift;
- property Format: TglBitmapFormat read fFormat write fFormat;
-
- procedure CreateColorTable;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- destructor Destroy; override;
- end;
-
-const
- LUMINANCE_WEIGHT_R = 0.30;
- LUMINANCE_WEIGHT_G = 0.59;
- LUMINANCE_WEIGHT_B = 0.11;
-
- ALPHA_WEIGHT_R = 0.30;
- ALPHA_WEIGHT_G = 0.59;
- ALPHA_WEIGHT_B = 0.11;
-
- DEPTH_WEIGHT_R = 0.333333333;
- DEPTH_WEIGHT_G = 0.333333333;
- DEPTH_WEIGHT_B = 0.333333333;
-
- UNSUPPORTED_FORMAT = 'the given format isn''t supported by this function.';
-
- FORMAT_DESCRIPTOR_CLASSES: array[TglBitmapFormat] of TFormatDescriptorClass = (
- TfdEmpty,
-
- TfdAlpha4,
- TfdAlpha8,
- TfdAlpha12,
- TfdAlpha16,
-
- TfdLuminance4,
- TfdLuminance8,
- TfdLuminance12,
- TfdLuminance16,
-
- TfdLuminance4Alpha4,
- TfdLuminance6Alpha2,
- TfdLuminance8Alpha8,
- TfdLuminance12Alpha4,
- TfdLuminance12Alpha12,
- TfdLuminance16Alpha16,
-
- TfdR3G3B2,
- TfdRGB4,
- TfdR5G6B5,
- TfdRGB5,
- TfdRGB8,
- TfdRGB10,
- TfdRGB12,
- TfdRGB16,
-
- TfdRGBA2,
- TfdRGBA4,
- TfdRGB5A1,
- TfdRGBA8,
- TfdRGB10A2,
- TfdRGBA12,
- TfdRGBA16,
-
- TfdBGR4,
- TfdB5G6R5,
- TfdBGR5,
- TfdBGR8,
- TfdBGR10,
- TfdBGR12,
- TfdBGR16,
-
- TfdBGRA2,
- TfdBGRA4,
- TfdBGR5A1,
- TfdBGRA8,
- TfdBGR10A2,
- TfdBGRA12,
- TfdBGRA16,
-
- TfdDepth16,
- TfdDepth24,
- TfdDepth32,
-
- TfdS3tcDtx1RGBA,
- TfdS3tcDtx3RGBA,
- TfdS3tcDtx5RGBA
- );
-
-var
- FormatDescriptorCS: TCriticalSection;
- FormatDescriptors: array[TglBitmapFormat] of TFormatDescriptor;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor EglBitmapUnsupportedFormat.Create(const aFormat: TglBitmapFormat);
-begin
- inherited Create('unsupported format: ' + GetEnumName(TypeInfo(TglBitmapFormat), Integer(aFormat)));
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor EglBitmapUnsupportedFormat.Create(const aMsg: String; const aFormat: TglBitmapFormat);
-begin
- inherited Create(aMsg + GetEnumName(TypeInfo(TglBitmapFormat), Integer(aFormat)));
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapPosition(X, Y: Integer): TglBitmapPixelPosition;
-begin
- result.Fields := [];
-
- if X >= 0 then
- result.Fields := result.Fields + [ffX];
- if Y >= 0 then
- result.Fields := result.Fields + [ffY];
-
- result.X := Max(0, X);
- result.Y := Max(0, Y);
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
-begin
- result.r := r;
- result.g := g;
- result.b := b;
- result.a := a;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
-var
- i: Integer;
-begin
- result := false;
- for i := 0 to high(r1.arr) do
- if (r1.arr[i] <> r2.arr[i]) then
- exit;
- result := true;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapShiftRec(const r, g, b, a: Byte): TShiftRec;
-begin
- result.r := r;
- result.g := g;
- result.b := b;
- result.a := a;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function FormatGetSupportedFiles(const aFormat: TglBitmapFormat): TglBitmapFileTypes;
-begin
- result := [];
-
- if (aFormat in [
- //4 bbp
- tfLuminance4,
-
- //8bpp
- tfR3G3B2, tfLuminance8,
-
- //16bpp
- tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
- tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4,
-
- //24bpp
- tfBGR8, tfRGB8,
-
- //32bpp
- tfRGB10, tfRGB10A2, tfRGBA8,
- tfBGR10, tfBGR10A2, tfBGRA8]) then
- result := result + [ftBMP];
-
- if (aFormat in [
- //8 bpp
- tfLuminance8, tfAlpha8,
-
- //16 bpp
- tfLuminance16, tfLuminance8Alpha8,
- tfRGB5, tfRGB5A1, tfRGBA4,
- tfBGR5, tfBGR5A1, tfBGRA4,
-
- //24 bpp
- tfRGB8, tfBGR8,
-
- //32 bpp
- tfRGB10A2, tfRGBA8, tfBGR10A2, tfBGRA8]) then
- result := result + [ftTGA];
-
- if (aFormat in [
- //8 bpp
- tfAlpha8, tfLuminance8, tfLuminance4Alpha4, tfLuminance6Alpha2,
- tfR3G3B2, tfRGBA2, tfBGRA2,
-
- //16 bpp
- tfAlpha16, tfLuminance16, tfLuminance8Alpha8, tfLuminance12Alpha4,
- tfRGB4, tfR5G6B5, tfRGB5, tfRGBA4, tfRGB5A1,
- tfBGR4, tfB5G6R5, tfBGR5, tfBGRA4, tfBGR5A1,
-
- //24 bpp
- tfRGB8, tfBGR8,
-
- //32 bbp
- tfLuminance16Alpha16,
- tfRGBA8, tfRGB10A2,
- tfBGRA8, tfBGR10A2,
-
- //compressed
- tfS3tcDtx1RGBA, tfS3tcDtx3RGBA, tfS3tcDtx5RGBA]) then
- result := result + [ftDDS];
-
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- if aFormat in [
- tfAlpha8, tfLuminance8, tfLuminance8Alpha8,
- tfRGB8, tfRGBA8,
- tfBGR8, tfBGRA8] then
- result := result + [ftPNG];
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- if aFormat in [tfAlpha8, tfLuminance8, tfRGB8, tfBGR8] then
- result := result + [ftJPEG];
- {$ENDIF}
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function IsPowerOfTwo(aNumber: Integer): Boolean;
-begin
- while (aNumber and 1) = 0 do
- aNumber := aNumber shr 1;
- result := aNumber = 1;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function GetTopMostBit(aBitSet: QWord): Integer;
-begin
- result := 0;
- while aBitSet > 0 do begin
- inc(result);
- aBitSet := aBitSet shr 1;
- end;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function CountSetBits(aBitSet: QWord): Integer;
-begin
- result := 0;
- while aBitSet > 0 do begin
- if (aBitSet and 1) = 1 then
- inc(result);
- aBitSet := aBitSet shr 1;
- end;
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function LuminanceWeight(const aPixel: TglBitmapPixelData): Cardinal;
-begin
- result := Trunc(
- LUMINANCE_WEIGHT_R * aPixel.Data.r +
- LUMINANCE_WEIGHT_G * aPixel.Data.g +
- LUMINANCE_WEIGHT_B * aPixel.Data.b);
-end;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function DepthWeight(const aPixel: TglBitmapPixelData): Cardinal;
-begin
- result := Trunc(
- DEPTH_WEIGHT_R * aPixel.Data.r +
- DEPTH_WEIGHT_G * aPixel.Data.g +
- DEPTH_WEIGHT_B * aPixel.Data.b);
-end;
-
-{$IFDEF GLB_NATIVE_OGL}
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//OpenGLInitialization///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-var
- GL_LibHandle: Pointer = nil;
-
-function glbGetProcAddress(aProcName: PAnsiChar; aLibHandle: Pointer = nil; const aRaiseOnErr: Boolean = true): Pointer;
-begin
- if not Assigned(aLibHandle) then
- aLibHandle := GL_LibHandle;
-
-{$IF DEFINED(GLB_WIN)}
- result := GetProcAddress({%H-}HMODULE(aLibHandle), aProcName);
- if Assigned(result) then
- exit;
-
- if Assigned(wglGetProcAddress) then
- result := wglGetProcAddress(aProcName);
-{$ELSEIF DEFINED(GLB_LINUX)}
- if Assigned(glXGetProcAddress) then begin
- result := glXGetProcAddress(aProcName);
- if Assigned(result) then
- exit;
- end;
-
- if Assigned(glXGetProcAddressARB) then begin
- result := glXGetProcAddressARB(aProcName);
- if Assigned(result) then
- exit;
- end;
-
- result := dlsym(aLibHandle, aProcName);
-{$IFEND}
- if not Assigned(result) and aRaiseOnErr then
- raise EglBitmap.Create('unable to load procedure form library: ' + aProcName);
-end;
-
-{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
-var
- GLU_LibHandle: Pointer = nil;
- OpenGLInitialized: Boolean;
- InitOpenGLCS: TCriticalSection;
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glbInitOpenGL;
-
- ////////////////////////////////////////////////////////////////////////////////
- function glbLoadLibrary(const aName: PChar): Pointer;
- begin
- {$IF DEFINED(GLB_WIN)}
- result := {%H-}Pointer(LoadLibrary(aName));
- {$ELSEIF DEFINED(GLB_LINUX)}
- result := dlopen(Name, RTLD_LAZY);
- {$ELSE}
- result := nil;
- {$IFEND}
- end;
-
- ////////////////////////////////////////////////////////////////////////////////
- function glbFreeLibrary(const aLibHandle: Pointer): Boolean;
- begin
- result := false;
- if not Assigned(aLibHandle) then
- exit;
-
- {$IF DEFINED(GLB_WIN)}
- Result := FreeLibrary({%H-}HINST(aLibHandle));
- {$ELSEIF DEFINED(GLB_LINUX)}
- Result := dlclose(aLibHandle) = 0;
- {$IFEND}
- end;
-
-begin
- if Assigned(GL_LibHandle) then
- glbFreeLibrary(GL_LibHandle);
-
- if Assigned(GLU_LibHandle) then
- glbFreeLibrary(GLU_LibHandle);
-
- GL_LibHandle := glbLoadLibrary(libopengl);
- if not Assigned(GL_LibHandle) then
- raise EglBitmap.Create('unable to load library: ' + libopengl);
-
- GLU_LibHandle := glbLoadLibrary(libglu);
- if not Assigned(GLU_LibHandle) then
- raise EglBitmap.Create('unable to load library: ' + libglu);
-
-{$IF DEFINED(GLB_WIN)}
- wglGetProcAddress := glbGetProcAddress('wglGetProcAddress');
-{$ELSEIF DEFINED(GLB_LINUX)}
- glXGetProcAddress := glbGetProcAddress('glXGetProcAddress');
- glXGetProcAddressARB := glbGetProcAddress('glXGetProcAddressARB');
-{$IFEND}
-
- glEnable := glbGetProcAddress('glEnable');
- glDisable := glbGetProcAddress('glDisable');
- glGetString := glbGetProcAddress('glGetString');
- glGetIntegerv := glbGetProcAddress('glGetIntegerv');
- glTexParameteri := glbGetProcAddress('glTexParameteri');
- glTexParameteriv := glbGetProcAddress('glTexParameteriv');
- glTexParameterfv := glbGetProcAddress('glTexParameterfv');
- glGetTexParameteriv := glbGetProcAddress('glGetTexParameteriv');
- glGetTexParameterfv := glbGetProcAddress('glGetTexParameterfv');
- glGetTexLevelParameteriv := glbGetProcAddress('glGetTexLevelParameteriv');
- glGetTexLevelParameterfv := glbGetProcAddress('glGetTexLevelParameterfv');
- glTexGeni := glbGetProcAddress('glTexGeni');
- glGenTextures := glbGetProcAddress('glGenTextures');
- glBindTexture := glbGetProcAddress('glBindTexture');
- glDeleteTextures := glbGetProcAddress('glDeleteTextures');
- glAreTexturesResident := glbGetProcAddress('glAreTexturesResident');
- glReadPixels := glbGetProcAddress('glReadPixels');
- glPixelStorei := glbGetProcAddress('glPixelStorei');
- glTexImage1D := glbGetProcAddress('glTexImage1D');
- glTexImage2D := glbGetProcAddress('glTexImage2D');
- glGetTexImage := glbGetProcAddress('glGetTexImage');
-
- gluBuild1DMipmaps := glbGetProcAddress('gluBuild1DMipmaps', GLU_LibHandle);
- gluBuild2DMipmaps := glbGetProcAddress('gluBuild2DMipmaps', GLU_LibHandle);
-end;
-{$ENDIF}
-
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glbReadOpenGLExtensions;
-var
- Buffer: AnsiString;
- MajorVersion, MinorVersion: Integer;
-
- ///////////////////////////////////////////////////////////////////////////////////////////
- procedure TrimVersionString(aBuffer: AnsiString; out aMajor, aMinor: Integer);
- var
- Separator: Integer;
- begin
- aMinor := 0;
- aMajor := 0;
-
- Separator := Pos(AnsiString('.'), aBuffer);
- if (Separator > 1) and (Separator < Length(aBuffer)) and
- (aBuffer[Separator - 1] in ['0'..'9']) and
- (aBuffer[Separator + 1] in ['0'..'9']) then begin
-
- Dec(Separator);
- while (Separator > 0) and (aBuffer[Separator] in ['0'..'9']) do
- Dec(Separator);
-
- Delete(aBuffer, 1, Separator);
- Separator := Pos(AnsiString('.'), aBuffer) + 1;
-
- while (Separator <= Length(aBuffer)) and (AnsiChar(aBuffer[Separator]) in ['0'..'9']) do
- Inc(Separator);
-
- Delete(aBuffer, Separator, 255);
- Separator := Pos(AnsiString('.'), aBuffer);
-
- aMajor := StrToInt(Copy(String(aBuffer), 1, Separator - 1));
- aMinor := StrToInt(Copy(String(aBuffer), Separator + 1, 1));
- end;
- end;
-
- ///////////////////////////////////////////////////////////////////////////////////////////
- function CheckExtension(const Extension: AnsiString): Boolean;
- var
- ExtPos: Integer;
- begin
- ExtPos := Pos(Extension, Buffer);
- result := ExtPos > 0;
- if result then
- result := ((ExtPos + Length(Extension) - 1) = Length(Buffer)) or not (Buffer[ExtPos + Length(Extension)] in ['_', 'A'..'Z', 'a'..'z']);
- end;
-
- ///////////////////////////////////////////////////////////////////////////////////////////
- function CheckVersion(const aMajor, aMinor: Integer): Boolean;
- begin
- result := (MajorVersion > aMajor) or ((MajorVersion = aMajor) and (MinorVersion >= aMinor));
- end;
-
-begin
-{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- InitOpenGLCS.Enter;
- try
- if not OpenGLInitialized then begin
- glbInitOpenGL;
- OpenGLInitialized := true;
- end;
- finally
- InitOpenGLCS.Leave;
- end;
-{$ENDIF}
-
- // Version
- Buffer := glGetString(GL_VERSION);
- TrimVersionString(Buffer, MajorVersion, MinorVersion);
-
- GL_VERSION_1_2 := CheckVersion(1, 2);
- GL_VERSION_1_3 := CheckVersion(1, 3);
- GL_VERSION_1_4 := CheckVersion(1, 4);
- GL_VERSION_2_0 := CheckVersion(2, 0);
- GL_VERSION_3_3 := CheckVersion(3, 3);
-
- // Extensions
- Buffer := glGetString(GL_EXTENSIONS);
- GL_ARB_texture_border_clamp := CheckExtension('GL_ARB_texture_border_clamp');
- GL_ARB_texture_non_power_of_two := CheckExtension('GL_ARB_texture_non_power_of_two');
- GL_ARB_texture_swizzle := CheckExtension('GL_ARB_texture_swizzle');
- GL_ARB_texture_cube_map := CheckExtension('GL_ARB_texture_cube_map');
- GL_ARB_texture_rectangle := CheckExtension('GL_ARB_texture_rectangle');
- GL_ARB_texture_mirrored_repeat := CheckExtension('GL_ARB_texture_mirrored_repeat');
- GL_EXT_texture_edge_clamp := CheckExtension('GL_EXT_texture_edge_clamp');
- GL_EXT_texture_filter_anisotropic := CheckExtension('GL_EXT_texture_filter_anisotropic');
- GL_EXT_texture_rectangle := CheckExtension('GL_EXT_texture_rectangle');
- GL_EXT_texture_swizzle := CheckExtension('GL_EXT_texture_swizzle');
- GL_EXT_texture_cube_map := CheckExtension('GL_EXT_texture_cube_map');
- GL_NV_texture_rectangle := CheckExtension('GL_NV_texture_rectangle');
- GL_IBM_texture_mirrored_repeat := CheckExtension('GL_IBM_texture_mirrored_repeat');
- GL_SGIS_generate_mipmap := CheckExtension('GL_SGIS_generate_mipmap');
-
- if GL_VERSION_1_3 then begin
- glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1D');
- glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2D');
- glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImage');
- end else begin
- glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1DARB', nil, false);
- glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2DARB', nil, false);
- glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImageARB', nil, false);
- end;
-end;
-{$ENDIF}
-
-{$IFDEF GLB_SDL_IMAGE}
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// SDL Image Helper /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapRWseek(context: PSDL_RWops; offset: Integer; whence: Integer): Integer; cdecl;
-begin
- result := TStream(context^.unknown.data1).Seek(offset, whence);
-end;
-
-function glBitmapRWread(context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer): Integer; cdecl;
-begin
- result := TStream(context^.unknown.data1).Read(Ptr^, size * maxnum);
-end;
-
-function glBitmapRWwrite(context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer): Integer; cdecl;
-begin
- result := TStream(context^.unknown.data1).Write(Ptr^, size * num);
-end;
-
-function glBitmapRWclose(context: PSDL_RWops): Integer; cdecl;
-begin
- result := 0;
-end;
-
-function glBitmapCreateRWops(Stream: TStream): PSDL_RWops;
-begin
- result := SDL_AllocRW;
-
- if result = nil then
- raise EglBitmapException.Create('glBitmapCreateRWops - SDL_AllocRW failed.');
-
- result^.seek := glBitmapRWseek;
- result^.read := glBitmapRWread;
- result^.write := glBitmapRWwrite;
- result^.close := glBitmapRWclose;
- result^.unknown.data1 := Stream;
-end;
-{$ENDIF}
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
-begin
- glBitmapDefaultDeleteTextureOnFree := aDeleteTextureOnFree;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
-begin
- glBitmapDefaultFreeDataAfterGenTextures := aFreeData;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
-begin
- glBitmapDefaultMipmap := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
-begin
- glBitmapDefaultFormat := aFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
-begin
- glBitmapDefaultFilterMin := aMin;
- glBitmapDefaultFilterMag := aMag;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultWrap(const S: Cardinal = GL_CLAMP_TO_EDGE; const T: Cardinal = GL_CLAMP_TO_EDGE; const R: Cardinal = GL_CLAMP_TO_EDGE);
-begin
- glBitmapDefaultWrapS := S;
- glBitmapDefaultWrapT := T;
- glBitmapDefaultWrapR := R;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapSetDefaultSwizzle(const r: GLenum = GL_RED; g: GLenum = GL_GREEN; b: GLenum = GL_BLUE; a: GLenum = GL_ALPHA);
-begin
- glDefaultSwizzle[0] := r;
- glDefaultSwizzle[1] := g;
- glDefaultSwizzle[2] := b;
- glDefaultSwizzle[3] := a;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
-begin
- result := glBitmapDefaultDeleteTextureOnFree;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
-begin
- result := glBitmapDefaultFreeDataAfterGenTextures;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapGetDefaultMipmap: TglBitmapMipMap;
-begin
- result := glBitmapDefaultMipmap;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapGetDefaultFormat: TglBitmapFormat;
-begin
- result := glBitmapDefaultFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapGetDefaultFilter(var aMin, aMag: GLenum);
-begin
- aMin := glBitmapDefaultFilterMin;
- aMag := glBitmapDefaultFilterMag;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapGetDefaultTextureWrap(var S, T, R: GLenum);
-begin
- S := glBitmapDefaultWrapS;
- T := glBitmapDefaultWrapT;
- R := glBitmapDefaultWrapR;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapGetDefaultSwizzle(var r, g, b, a: GLenum);
-begin
- r := glDefaultSwizzle[0];
- g := glDefaultSwizzle[1];
- b := glDefaultSwizzle[2];
- a := glDefaultSwizzle[3];
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetRedMask: QWord;
-begin
- result := fRange.r shl fShift.r;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetGreenMask: QWord;
-begin
- result := fRange.g shl fShift.g;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetBlueMask: QWord;
-begin
- result := fRange.b shl fShift.b;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetAlphaMask: QWord;
-begin
- result := fRange.a shl fShift.a;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetIsCompressed: Boolean;
-begin
- result := fIsCompressed;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetHasRed: Boolean;
-begin
- result := (fRange.r > 0);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetHasGreen: Boolean;
-begin
- result := (fRange.g > 0);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetHasBlue: Boolean;
-begin
- result := (fRange.b > 0);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetHasAlpha: Boolean;
-begin
- result := (fRange.a > 0);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetglFormat: GLenum;
-begin
- result := fglFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetglInternalFormat: GLenum;
-begin
- result := fglInternalFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetglDataFormat: GLenum;
-begin
- result := fglDataFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetComponents: Integer;
-var
- i: Integer;
-begin
- result := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- inc(result);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetSize(const aSize: TglBitmapPixelPosition): Integer;
-var
- w, h: Integer;
-begin
- if (ffX in aSize.Fields) or (ffY in aSize.Fields) then begin
- w := Max(1, aSize.X);
- h := Max(1, aSize.Y);
- result := GetSize(w, h);
- end else
- result := 0;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetSize(const aWidth, aHeight: Integer): Integer;
-begin
- result := 0;
- if (aWidth <= 0) or (aHeight <= 0) then
- exit;
- result := Ceil(aWidth * aHeight * fPixelSize);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.CreateMappingData: Pointer;
-begin
- result := nil;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TFormatDescriptor.FreeMappingData(var aMappingData: Pointer);
-begin
- //DUMMY
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.IsEmpty: Boolean;
-begin
- result := (fFormat = tfEmpty);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean;
-begin
- result := false;
- if (aRedMask = 0) and (aGreenMask = 0) and (aBlueMask = 0) and (aAlphaMask = 0) then
- raise EglBitmap.Create('FormatCheckFormat - All Masks are 0');
- if (aRedMask <> RedMask) then
- exit;
- if (aGreenMask <> GreenMask) then
- exit;
- if (aBlueMask <> BlueMask) then
- exit;
- if (aAlphaMask <> AlphaMask) then
- exit;
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TFormatDescriptor.PreparePixel(out aPixel: TglBitmapPixelData);
-begin
- FillChar(aPixel{%H-}, SizeOf(aPixel), 0);
- aPixel.Data := fRange;
- aPixel.Range := fRange;
- aPixel.Format := fFormat;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TFormatDescriptor.Create;
-begin
- inherited Create;
-
- fFormat := tfEmpty;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfEmpty;
- fRGBInverted := tfEmpty;
- fUncompressed := tfEmpty;
- fPixelSize := 0.0;
- fIsCompressed := false;
-
- fglFormat := 0;
- fglInternalFormat := 0;
- fglDataFormat := 0;
-
- FillChar(fRange, 0, SizeOf(fRange));
- FillChar(fShift, 0, SizeOf(fShift));
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdAlpha_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdAlpha_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- aData^ := aPixel.Data.a;
- inc(aData);
-end;
-
-procedure TfdAlpha_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := 0;
- aPixel.Data.g := 0;
- aPixel.Data.b := 0;
- aPixel.Data.a := aData^;
- inc(aData);
-end;
-
-constructor TfdAlpha_UB1.Create;
-begin
- inherited Create;
- fPixelSize := 1.0;
- fRange.a := $FF;
- fglFormat := GL_ALPHA;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdLuminance_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdLuminance_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- aData^ := LuminanceWeight(aPixel);
- inc(aData);
-end;
-
-procedure TfdLuminance_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := aData^;
- aPixel.Data.g := aData^;
- aPixel.Data.b := aData^;
- aPixel.Data.a := 0;
- inc(aData);
-end;
-
-constructor TfdLuminance_UB1.Create;
-begin
- inherited Create;
- fPixelSize := 1.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fglFormat := GL_LUMINANCE;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdUniversal_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdUniversal_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-var
- i: Integer;
-begin
- aData^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- aData^ := aData^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData);
-end;
-
-procedure TfdUniversal_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-var
- i: Integer;
-begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (aData^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData);
-end;
-
-constructor TfdUniversal_UB1.Create;
-begin
- inherited Create;
- fPixelSize := 1.0;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdLuminanceAlpha_UB2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdLuminanceAlpha_UB2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
-end;
-
-procedure TfdLuminanceAlpha_UB2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
-end;
-
-constructor TfdLuminanceAlpha_UB2.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.a := $FF;
- fShift.a := 8;
- fglFormat := GL_LUMINANCE_ALPHA;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdRGB_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdRGB_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- aData^ := aPixel.Data.r;
- inc(aData);
- aData^ := aPixel.Data.g;
- inc(aData);
- aData^ := aPixel.Data.b;
- inc(aData);
-end;
-
-procedure TfdRGB_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := aData^;
- inc(aData);
- aPixel.Data.g := aData^;
- inc(aData);
- aPixel.Data.b := aData^;
- inc(aData);
- aPixel.Data.a := 0;
-end;
-
-constructor TfdRGB_UB3.Create;
-begin
- inherited Create;
- fPixelSize := 3.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fShift.r := 0;
- fShift.g := 8;
- fShift.b := 16;
- fglFormat := GL_RGB;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdBGR_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdBGR_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- aData^ := aPixel.Data.b;
- inc(aData);
- aData^ := aPixel.Data.g;
- inc(aData);
- aData^ := aPixel.Data.r;
- inc(aData);
-end;
-
-procedure TfdBGR_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.b := aData^;
- inc(aData);
- aPixel.Data.g := aData^;
- inc(aData);
- aPixel.Data.r := aData^;
- inc(aData);
- aPixel.Data.a := 0;
-end;
-
-constructor TfdBGR_UB3.Create;
-begin
- fPixelSize := 3.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fShift.r := 16;
- fShift.g := 8;
- fShift.b := 0;
- fglFormat := GL_BGR;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TdfRGBA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdRGBA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
-end;
-
-procedure TfdRGBA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
-end;
-
-constructor TfdRGBA_UB4.Create;
-begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FF;
- fShift.a := 24;
- fglFormat := GL_RGBA;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdBGRA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdBGRA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
-end;
-
-procedure TfdBGRA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
-end;
-
-constructor TfdBGRA_UB4.Create;
-begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FF;
- fShift.a := 24;
- fglFormat := GL_BGRA;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdAlpha_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdAlpha_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
-end;
-
-procedure TfdAlpha_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := 0;
- aPixel.Data.g := 0;
- aPixel.Data.b := 0;
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
-end;
-
-constructor TfdAlpha_US1.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.a := $FFFF;
- fglFormat := GL_ALPHA;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdLuminance_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdLuminance_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PWord(aData)^ := LuminanceWeight(aPixel);
- inc(aData, 2);
-end;
-
-procedure TfdLuminance_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := PWord(aData)^;
- aPixel.Data.g := PWord(aData)^;
- aPixel.Data.b := PWord(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 2);
-end;
-
-constructor TfdLuminance_US1.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fglFormat := GL_LUMINANCE;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdUniversal_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdUniversal_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-var
- i: Integer;
-begin
- PWord(aData)^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- PWord(aData)^ := PWord(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData, 2);
-end;
-
-procedure TfdUniversal_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-var
- i: Integer;
-begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (PWord(aData)^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, 2);
-end;
-
-constructor TfdUniversal_US1.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdDepth_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdDepth_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PWord(aData)^ := DepthWeight(aPixel);
- inc(aData, 2);
-end;
-
-procedure TfdDepth_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := PWord(aData)^;
- aPixel.Data.g := PWord(aData)^;
- aPixel.Data.b := PWord(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 2);
-end;
-
-constructor TfdDepth_US1.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fglFormat := GL_DEPTH_COMPONENT;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdLuminanceAlpha_US2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdLuminanceAlpha_US2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
-end;
-
-procedure TfdLuminanceAlpha_US2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
-end;
-
-constructor TfdLuminanceAlpha_US2.Create;
-begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FFFF;
- fShift.a := 16;
- fglFormat := GL_LUMINANCE_ALPHA;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdRGB_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdRGB_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PWord(aData)^ := aPixel.Data.r;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.g;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.b;
- inc(aData, 2);
-end;
-
-procedure TfdRGB_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.g := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.b := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.a := 0;
-end;
-
-constructor TfdRGB_US3.Create;
-begin
- inherited Create;
- fPixelSize := 6.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fShift.r := 0;
- fShift.g := 16;
- fShift.b := 32;
- fglFormat := GL_RGB;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdBGR_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdBGR_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PWord(aData)^ := aPixel.Data.b;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.g;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.r;
- inc(aData, 2);
-end;
-
-procedure TfdBGR_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.b := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.g := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.r := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.a := 0;
-end;
-
-constructor TfdBGR_US3.Create;
-begin
- inherited Create;
- fPixelSize := 6.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fShift.r := 32;
- fShift.g := 16;
- fShift.b := 0;
- fglFormat := GL_BGR;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdRGBA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdRGBA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
-end;
-
-procedure TfdRGBA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
-end;
-
-constructor TfdRGBA_US4.Create;
-begin
- inherited Create;
- fPixelSize := 8.0;
- fRange.a := $FFFF;
- fShift.a := 48;
- fglFormat := GL_RGBA;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdBGRA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdBGRA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
-end;
-
-procedure TfdBGRA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
-end;
-
-constructor TfdBGRA_US4.Create;
-begin
- inherited Create;
- fPixelSize := 8.0;
- fRange.a := $FFFF;
- fShift.a := 48;
- fglFormat := GL_BGRA;
- fglDataFormat := GL_UNSIGNED_SHORT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdUniversal_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdUniversal_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-var
- i: Integer;
-begin
- PCardinal(aData)^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- PCardinal(aData)^ := PCardinal(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData, 4);
-end;
-
-procedure TfdUniversal_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-var
- i: Integer;
-begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (PCardinal(aData)^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, 2);
-end;
-
-constructor TfdUniversal_UI1.Create;
-begin
- inherited Create;
- fPixelSize := 4.0;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdDepth_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdDepth_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- PCardinal(aData)^ := DepthWeight(aPixel);
- inc(aData, 4);
-end;
-
-procedure TfdDepth_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- aPixel.Data.r := PCardinal(aData)^;
- aPixel.Data.g := PCardinal(aData)^;
- aPixel.Data.b := PCardinal(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 4);
-end;
-
-constructor TfdDepth_UI1.Create;
-begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.r := $FFFFFFFF;
- fRange.g := $FFFFFFFF;
- fRange.b := $FFFFFFFF;
- fglFormat := GL_DEPTH_COMPONENT;
- fglDataFormat := GL_UNSIGNED_INT;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TfdAlpha4.Create;
-begin
- inherited Create;
- fFormat := tfAlpha4;
- fWithAlpha := tfAlpha4;
- fglInternalFormat := GL_ALPHA4;
-end;
-
-constructor TfdAlpha8.Create;
-begin
- inherited Create;
- fFormat := tfAlpha8;
- fWithAlpha := tfAlpha8;
- fglInternalFormat := GL_ALPHA8;
-end;
-
-constructor TfdAlpha12.Create;
-begin
- inherited Create;
- fFormat := tfAlpha12;
- fWithAlpha := tfAlpha12;
- fglInternalFormat := GL_ALPHA12;
-end;
-
-constructor TfdAlpha16.Create;
-begin
- inherited Create;
- fFormat := tfAlpha16;
- fWithAlpha := tfAlpha16;
- fglInternalFormat := GL_ALPHA16;
-end;
-
-constructor TfdLuminance4.Create;
-begin
- inherited Create;
- fFormat := tfLuminance4;
- fWithAlpha := tfLuminance4Alpha4;
- fWithoutAlpha := tfLuminance4;
- fglInternalFormat := GL_LUMINANCE4;
-end;
-
-constructor TfdLuminance8.Create;
-begin
- inherited Create;
- fFormat := tfLuminance8;
- fWithAlpha := tfLuminance8Alpha8;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE8;
-end;
-
-constructor TfdLuminance12.Create;
-begin
- inherited Create;
- fFormat := tfLuminance12;
- fWithAlpha := tfLuminance12Alpha12;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12;
-end;
-
-constructor TfdLuminance16.Create;
-begin
- inherited Create;
- fFormat := tfLuminance16;
- fWithAlpha := tfLuminance16Alpha16;
- fWithoutAlpha := tfLuminance16;
- fglInternalFormat := GL_LUMINANCE16;
-end;
-
-constructor TfdLuminance4Alpha4.Create;
-begin
- inherited Create;
- fFormat := tfLuminance4Alpha4;
- fWithAlpha := tfLuminance4Alpha4;
- fWithoutAlpha := tfLuminance4;
- fglInternalFormat := GL_LUMINANCE4_ALPHA4;
-end;
-
-constructor TfdLuminance6Alpha2.Create;
-begin
- inherited Create;
- fFormat := tfLuminance6Alpha2;
- fWithAlpha := tfLuminance6Alpha2;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE6_ALPHA2;
-end;
-
-constructor TfdLuminance8Alpha8.Create;
-begin
- inherited Create;
- fFormat := tfLuminance8Alpha8;
- fWithAlpha := tfLuminance8Alpha8;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE8_ALPHA8;
-end;
-
-constructor TfdLuminance12Alpha4.Create;
-begin
- inherited Create;
- fFormat := tfLuminance12Alpha4;
- fWithAlpha := tfLuminance12Alpha4;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12_ALPHA4;
-end;
-
-constructor TfdLuminance12Alpha12.Create;
-begin
- inherited Create;
- fFormat := tfLuminance12Alpha12;
- fWithAlpha := tfLuminance12Alpha12;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12_ALPHA12;
-end;
-
-constructor TfdLuminance16Alpha16.Create;
-begin
- inherited Create;
- fFormat := tfLuminance16Alpha16;
- fWithAlpha := tfLuminance16Alpha16;
- fWithoutAlpha := tfLuminance16;
- fglInternalFormat := GL_LUMINANCE16_ALPHA16;
-end;
-
-constructor TfdR3G3B2.Create;
-begin
- inherited Create;
- fFormat := tfR3G3B2;
- fWithAlpha := tfRGBA2;
- fWithoutAlpha := tfR3G3B2;
- fRange.r := $7;
- fRange.g := $7;
- fRange.b := $3;
- fShift.r := 0;
- fShift.g := 3;
- fShift.b := 6;
- fglFormat := GL_RGB;
- fglInternalFormat := GL_R3_G3_B2;
- fglDataFormat := GL_UNSIGNED_BYTE_2_3_3_REV;
-end;
-
-constructor TfdRGB4.Create;
-begin
- inherited Create;
- fFormat := tfRGB4;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfRGB4;
- fRGBInverted := tfBGR4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fShift.r := 0;
- fShift.g := 4;
- fShift.b := 8;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
-end;
-
-constructor TfdR5G6B5.Create;
-begin
- inherited Create;
- fFormat := tfR5G6B5;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfR5G6B5;
- fRGBInverted := tfB5G6R5;
- fRange.r := $1F;
- fRange.g := $3F;
- fRange.b := $1F;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 11;
- fglFormat := GL_RGB;
- fglInternalFormat := GL_RGB565;
- fglDataFormat := GL_UNSIGNED_SHORT_5_6_5_REV;
-end;
-
-constructor TfdRGB5.Create;
-begin
- inherited Create;
- fFormat := tfRGB5;
- fWithAlpha := tfRGB5A1;
- fWithoutAlpha := tfRGB5;
- fRGBInverted := tfBGR5;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 10;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB5;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
-end;
-
-constructor TfdRGB8.Create;
-begin
- inherited Create;
- fFormat := tfRGB8;
- fWithAlpha := tfRGBA8;
- fWithoutAlpha := tfRGB8;
- fRGBInverted := tfBGR8;
- fglInternalFormat := GL_RGB8;
-end;
-
-constructor TfdRGB10.Create;
-begin
- inherited Create;
- fFormat := tfRGB10;
- fWithAlpha := tfRGB10A2;
- fWithoutAlpha := tfRGB10;
- fRGBInverted := tfBGR10;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fShift.r := 0;
- fShift.g := 10;
- fShift.b := 20;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB10;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
-end;
-
-constructor TfdRGB12.Create;
-begin
- inherited Create;
- fFormat := tfRGB12;
- fWithAlpha := tfRGBA12;
- fWithoutAlpha := tfRGB12;
- fRGBInverted := tfBGR12;
- fglInternalFormat := GL_RGB12;
-end;
-
-constructor TfdRGB16.Create;
-begin
- inherited Create;
- fFormat := tfRGB16;
- fWithAlpha := tfRGBA16;
- fWithoutAlpha := tfRGB16;
- fRGBInverted := tfBGR16;
- fglInternalFormat := GL_RGB16;
-end;
-
-constructor TfdRGBA2.Create;
-begin
- inherited Create;
- fFormat := tfRGBA2;
- fWithAlpha := tfRGBA2;
- fWithoutAlpha := tfR3G3B2;
- fRGBInverted := tfBGRA2;
- fglInternalFormat := GL_RGBA2;
-end;
-
-constructor TfdRGBA4.Create;
-begin
- inherited Create;
- fFormat := tfRGBA4;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfRGB4;
- fRGBInverted := tfBGRA4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $F;
- fShift.r := 0;
- fShift.g := 4;
- fShift.b := 8;
- fShift.a := 12;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGBA4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
-end;
-
-constructor TfdRGB5A1.Create;
-begin
- inherited Create;
- fFormat := tfRGB5A1;
- fWithAlpha := tfRGB5A1;
- fWithoutAlpha := tfRGB5;
- fRGBInverted := tfBGR5A1;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $01;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 10;
- fShift.a := 15;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGB5_A1;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
-end;
-
-constructor TfdRGBA8.Create;
-begin
- inherited Create;
- fFormat := tfRGBA8;
- fWithAlpha := tfRGBA8;
- fWithoutAlpha := tfRGB8;
- fRGBInverted := tfBGRA8;
- fglInternalFormat := GL_RGBA8;
-end;
-
-constructor TfdRGB10A2.Create;
-begin
- inherited Create;
- fFormat := tfRGB10A2;
- fWithAlpha := tfRGB10A2;
- fWithoutAlpha := tfRGB10;
- fRGBInverted := tfBGR10A2;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $003;
- fShift.r := 0;
- fShift.g := 10;
- fShift.b := 20;
- fShift.a := 30;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGB10_A2;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
-end;
-
-constructor TfdRGBA12.Create;
-begin
- inherited Create;
- fFormat := tfRGBA12;
- fWithAlpha := tfRGBA12;
- fWithoutAlpha := tfRGB12;
- fRGBInverted := tfBGRA12;
- fglInternalFormat := GL_RGBA12;
-end;
-
-constructor TfdRGBA16.Create;
-begin
- inherited Create;
- fFormat := tfRGBA16;
- fWithAlpha := tfRGBA16;
- fWithoutAlpha := tfRGB16;
- fRGBInverted := tfBGRA16;
- fglInternalFormat := GL_RGBA16;
-end;
-
-constructor TfdBGR4.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fFormat := tfBGR4;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGB4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $0;
- fShift.r := 8;
- fShift.g := 4;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TfdB5G6R5.Create;
-begin
- inherited Create;
- fFormat := tfB5G6R5;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfB5G6R5;
- fRGBInverted := tfR5G6B5;
- fRange.r := $1F;
- fRange.g := $3F;
- fRange.b := $1F;
- fShift.r := 11;
- fShift.g := 5;
- fShift.b := 0;
- fglFormat := GL_RGB; //B5G6R5 is only possible as R5G6B5 -> use reverted dataformat
- fglInternalFormat := GL_RGB8;
- fglDataFormat := GL_UNSIGNED_SHORT_5_6_5;
-end;
-
-constructor TfdBGR5.Create;
-begin
- inherited Create;
- fPixelSize := 2.0;
- fFormat := tfBGR5;
- fWithAlpha := tfBGR5A1;
- fWithoutAlpha := tfBGR5;
- fRGBInverted := tfRGB5;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $00;
- fShift.r := 10;
- fShift.g := 5;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB5;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
-end;
-
-constructor TfdBGR8.Create;
-begin
- inherited Create;
- fFormat := tfBGR8;
- fWithAlpha := tfBGRA8;
- fWithoutAlpha := tfBGR8;
- fRGBInverted := tfRGB8;
- fglInternalFormat := GL_RGB8;
-end;
-
-constructor TfdBGR10.Create;
-begin
- inherited Create;
- fFormat := tfBGR10;
- fWithAlpha := tfBGR10A2;
- fWithoutAlpha := tfBGR10;
- fRGBInverted := tfRGB10;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $000;
- fShift.r := 20;
- fShift.g := 10;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB10;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
-end;
-
-constructor TfdBGR12.Create;
-begin
- inherited Create;
- fFormat := tfBGR12;
- fWithAlpha := tfBGRA12;
- fWithoutAlpha := tfBGR12;
- fRGBInverted := tfRGB12;
- fglInternalFormat := GL_RGB12;
-end;
-
-constructor TfdBGR16.Create;
-begin
- inherited Create;
- fFormat := tfBGR16;
- fWithAlpha := tfBGRA16;
- fWithoutAlpha := tfBGR16;
- fRGBInverted := tfRGB16;
- fglInternalFormat := GL_RGB16;
-end;
-
-constructor TfdBGRA2.Create;
-begin
- inherited Create;
- fFormat := tfBGRA2;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGBA2;
- fglInternalFormat := GL_RGBA2;
-end;
-
-constructor TfdBGRA4.Create;
-begin
- inherited Create;
- fFormat := tfBGRA4;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGBA4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $F;
- fShift.r := 8;
- fShift.g := 4;
- fShift.b := 0;
- fShift.a := 12;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGBA4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
-end;
-
-constructor TfdBGR5A1.Create;
-begin
- inherited Create;
- fFormat := tfBGR5A1;
- fWithAlpha := tfBGR5A1;
- fWithoutAlpha := tfBGR5;
- fRGBInverted := tfRGB5A1;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $01;
- fShift.r := 10;
- fShift.g := 5;
- fShift.b := 0;
- fShift.a := 15;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGB5_A1;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
-end;
-
-constructor TfdBGRA8.Create;
-begin
- inherited Create;
- fFormat := tfBGRA8;
- fWithAlpha := tfBGRA8;
- fWithoutAlpha := tfBGR8;
- fRGBInverted := tfRGBA8;
- fglInternalFormat := GL_RGBA8;
-end;
-
-constructor TfdBGR10A2.Create;
-begin
- inherited Create;
- fFormat := tfBGR10A2;
- fWithAlpha := tfBGR10A2;
- fWithoutAlpha := tfBGR10;
- fRGBInverted := tfRGB10A2;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $003;
- fShift.r := 20;
- fShift.g := 10;
- fShift.b := 0;
- fShift.a := 30;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGB10_A2;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
-end;
-
-constructor TfdBGRA12.Create;
-begin
- inherited Create;
- fFormat := tfBGRA12;
- fWithAlpha := tfBGRA12;
- fWithoutAlpha := tfBGR12;
- fRGBInverted := tfRGBA12;
- fglInternalFormat := GL_RGBA12;
-end;
-
-constructor TfdBGRA16.Create;
-begin
- inherited Create;
- fFormat := tfBGRA16;
- fWithAlpha := tfBGRA16;
- fWithoutAlpha := tfBGR16;
- fRGBInverted := tfRGBA16;
- fglInternalFormat := GL_RGBA16;
-end;
-
-constructor TfdDepth16.Create;
-begin
- inherited Create;
- fFormat := tfDepth16;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth16;
- fglInternalFormat := GL_DEPTH_COMPONENT16;
-end;
-
-constructor TfdDepth24.Create;
-begin
- inherited Create;
- fFormat := tfDepth24;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth24;
- fglInternalFormat := GL_DEPTH_COMPONENT24;
-end;
-
-constructor TfdDepth32.Create;
-begin
- inherited Create;
- fFormat := tfDepth32;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth32;
- fglInternalFormat := GL_DEPTH_COMPONENT32;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdS3tcDtx1RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdS3tcDtx1RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-procedure TfdS3tcDtx1RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-constructor TfdS3tcDtx1RGBA.Create;
-begin
- inherited Create;
- fFormat := tfS3tcDtx1RGBA;
- fWithAlpha := tfS3tcDtx1RGBA;
- fUncompressed := tfRGB5A1;
- fPixelSize := 0.5;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdS3tcDtx3RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdS3tcDtx3RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-procedure TfdS3tcDtx3RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-constructor TfdS3tcDtx3RGBA.Create;
-begin
- inherited Create;
- fFormat := tfS3tcDtx3RGBA;
- fWithAlpha := tfS3tcDtx3RGBA;
- fUncompressed := tfRGBA8;
- fPixelSize := 1.0;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TfdS3tcDtx5RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TfdS3tcDtx5RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-procedure TfdS3tcDtx5RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-begin
- raise EglBitmap.Create('mapping for compressed formats is not supported');
-end;
-
-constructor TfdS3tcDtx5RGBA.Create;
-begin
- inherited Create;
- fFormat := tfS3tcDtx3RGBA;
- fWithAlpha := tfS3tcDtx3RGBA;
- fUncompressed := tfRGBA8;
- fPixelSize := 1.0;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmapFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class function TglBitmapFormatDescriptor.GetByFormat(const aInternalFormat: GLenum): TglBitmapFormatDescriptor;
-var
- f: TglBitmapFormat;
-begin
- for f := Low(TglBitmapFormat) to High(TglBitmapFormat) do begin
- result := TFormatDescriptor.Get(f);
- if (result.glInternalFormat = aInternalFormat) then
- exit;
- end;
- result := TFormatDescriptor.Get(tfEmpty);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class procedure TFormatDescriptor.Init;
-begin
- if not Assigned(FormatDescriptorCS) then
- FormatDescriptorCS := TCriticalSection.Create;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class function TFormatDescriptor.Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
-begin
- FormatDescriptorCS.Enter;
- try
- result := FormatDescriptors[aFormat];
- if not Assigned(result) then begin
- result := FORMAT_DESCRIPTOR_CLASSES[aFormat].Create;
- FormatDescriptors[aFormat] := result;
- end;
- finally
- FormatDescriptorCS.Leave;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class function TFormatDescriptor.GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
-begin
- result := Get(Get(aFormat).WithAlpha);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class procedure TFormatDescriptor.Clear;
-var
- f: TglBitmapFormat;
-begin
- FormatDescriptorCS.Enter;
- try
- for f := low(FormatDescriptors) to high(FormatDescriptors) do
- FreeAndNil(FormatDescriptors[f]);
- finally
- FormatDescriptorCS.Leave;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-class procedure TFormatDescriptor.Finalize;
-begin
- Clear;
- FreeAndNil(FormatDescriptorCS);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TBitfieldFormat/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.SetRedMask(const aValue: QWord);
-begin
- Update(aValue, fRange.r, fShift.r);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.SetGreenMask(const aValue: QWord);
-begin
- Update(aValue, fRange.g, fShift.g);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.SetBlueMask(const aValue: QWord);
-begin
- Update(aValue, fRange.b, fShift.b);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.SetAlphaMask(const aValue: QWord);
-begin
- Update(aValue, fRange.a, fShift.a);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.Update(aMask: QWord; out aRange: Cardinal; out
- aShift: Byte);
-begin
- aShift := 0;
- aRange := 0;
- if (aMask = 0) then
- exit;
- while (aMask > 0) and ((aMask and 1) = 0) do begin
- inc(aShift);
- aMask := aMask shr 1;
- end;
- aRange := 1;
- while (aMask > 0) do begin
- aRange := aRange shl 1;
- aMask := aMask shr 1;
- end;
- dec(aRange);
-
- fPixelSize := Round(GetTopMostBit(RedMask or GreenMask or BlueMask or AlphaMask) / 8);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-var
- data: QWord;
- s: Integer;
-begin
- data :=
- ((aPixel.Data.r and fRange.r) shl fShift.r) or
- ((aPixel.Data.g and fRange.g) shl fShift.g) or
- ((aPixel.Data.b and fRange.b) shl fShift.b) or
- ((aPixel.Data.a and fRange.a) shl fShift.a);
- s := Round(fPixelSize);
- case s of
- 1: aData^ := data;
- 2: PWord(aData)^ := data;
- 4: PCardinal(aData)^ := data;
- 8: PQWord(aData)^ := data;
- else
- raise EglBitmap.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
- end;
- inc(aData, s);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpBitfieldFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-var
- data: QWord;
- s, i: Integer;
-begin
- s := Round(fPixelSize);
- case s of
- 1: data := aData^;
- 2: data := PWord(aData)^;
- 4: data := PCardinal(aData)^;
- 8: data := PQWord(aData)^;
- else
- raise EglBitmap.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
- end;
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (data shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, s);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TColorTableFormat///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpColorTableFormat.CreateColorTable;
-var
- i: Integer;
-begin
- if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
- raise EglBitmap.Create(UNSUPPORTED_FORMAT);
-
- if (Format = tfLuminance4) then
- SetLength(fColorTable, 16)
- else
- SetLength(fColorTable, 256);
-
- case Format of
- tfLuminance4: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := 16 * i;
- fColorTable[i].g := 16 * i;
- fColorTable[i].b := 16 * i;
- fColorTable[i].a := 0;
- end;
- end;
-
- tfLuminance8: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := i;
- fColorTable[i].g := i;
- fColorTable[i].b := i;
- fColorTable[i].a := 0;
- end;
- end;
-
- tfR3G3B2: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := Round(((i shr Shift.r) and Range.r) / Range.r * 255);
- fColorTable[i].g := Round(((i shr Shift.g) and Range.g) / Range.g * 255);
- fColorTable[i].b := Round(((i shr Shift.b) and Range.b) / Range.b * 255);
- fColorTable[i].a := 0;
- end;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpColorTableFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
-var
- d: Byte;
-begin
- if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
- raise EglBitmap.Create(UNSUPPORTED_FORMAT);
-
- case Format of
- tfLuminance4: begin
- if (aMapData = nil) then
- aData^ := 0;
- d := LuminanceWeight(aPixel) and Range.r;
- aData^ := aData^ or (d shl (4 - {%H-}PtrUInt(aMapData)));
- inc(PByte(aMapData), 4);
- if ({%H-}PtrUInt(aMapData) >= 8) then begin
- inc(aData);
- aMapData := nil;
- end;
- end;
-
- tfLuminance8: begin
- aData^ := LuminanceWeight(aPixel) and Range.r;
- inc(aData);
- end;
-
- tfR3G3B2: begin
- aData^ := Round(
- ((aPixel.Data.r and Range.r) shl Shift.r) or
- ((aPixel.Data.g and Range.g) shl Shift.g) or
- ((aPixel.Data.b and Range.b) shl Shift.b));
- inc(aData);
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TbmpColorTableFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
-var
- idx: QWord;
- s: Integer;
- bits: Byte;
- f: Single;
-begin
- s := Trunc(fPixelSize);
- f := fPixelSize - s;
- bits := Round(8 * f);
- case s of
- 0: idx := (aData^ shr (8 - bits - {%H-}PtrInt(aMapData))) and ((1 shl bits) - 1);
- 1: idx := aData^;
- 2: idx := PWord(aData)^;
- 4: idx := PCardinal(aData)^;
- 8: idx := PQWord(aData)^;
- else
- raise EglBitmap.CreateFmt('invalid pixel size: %.3f', [fPixelSize]);
- end;
- if (idx >= Length(fColorTable)) then
- raise EglBitmap.CreateFmt('invalid color index: %d', [idx]);
- with fColorTable[idx] do begin
- aPixel.Data.r := r;
- aPixel.Data.g := g;
- aPixel.Data.b := b;
- aPixel.Data.a := a;
- end;
- inc(PByte(aMapData), bits);
- if ({%H-}PtrUInt(aMapData) >= 8) then begin
- inc(aData, 1);
- dec(PByte(aMapData), 8);
- end;
- inc(aData, s);
-end;
-
-destructor TbmpColorTableFormat.Destroy;
-begin
- SetLength(fColorTable, 0);
- inherited Destroy;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap - Helper//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapConvertPixel(var aPixel: TglBitmapPixelData; const aSourceFD, aDestFD: TFormatDescriptor);
-var
- i: Integer;
-begin
- for i := 0 to 3 do begin
- if (aSourceFD.Range.arr[i] <> aDestFD.Range.arr[i]) then begin
- if (aSourceFD.Range.arr[i] > 0) then
- aPixel.Data.arr[i] := Round(aPixel.Data.arr[i] / aSourceFD.Range.arr[i] * aDestFD.Range.arr[i])
- else
- aPixel.Data.arr[i] := aDestFD.Range.arr[i];
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapConvertCopyFunc(var aFuncRec: TglBitmapFunctionRec);
-begin
- with aFuncRec do begin
- if (Source.Range.r > 0) then
- Dest.Data.r := Source.Data.r;
- if (Source.Range.g > 0) then
- Dest.Data.g := Source.Data.g;
- if (Source.Range.b > 0) then
- Dest.Data.b := Source.Data.b;
- if (Source.Range.a > 0) then
- Dest.Data.a := Source.Data.a;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapConvertCalculateRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
-var
- i: Integer;
-begin
- with aFuncRec do begin
- for i := 0 to 3 do
- if (Source.Range.arr[i] > 0) then
- Dest.Data.arr[i] := Round(Dest.Range.arr[i] * Source.Data.arr[i] / Source.Range.arr[i]);
- end;
-end;
-
-type
- TShiftData = packed record
- case Integer of
- 0: (r, g, b, a: SmallInt);
- 1: (arr: array[0..3] of SmallInt);
- end;
- PShiftData = ^TShiftData;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapConvertShiftRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
-var
- i: Integer;
-begin
- with aFuncRec do
- for i := 0 to 3 do
- if (Source.Range.arr[i] > 0) then
- Dest.Data.arr[i] := Source.Data.arr[i] shr PShiftData(Args)^.arr[i];
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapInvertFunc(var aFuncRec: TglBitmapFunctionRec);
-begin
- with aFuncRec do begin
- Dest.Data := Source.Data;
- if ({%H-}PtrUInt(Args) and $1 > 0) then begin
- Dest.Data.r := Dest.Data.r xor Dest.Range.r;
- Dest.Data.g := Dest.Data.g xor Dest.Range.g;
- Dest.Data.b := Dest.Data.b xor Dest.Range.b;
- end;
- if ({%H-}PtrUInt(Args) and $2 > 0) then begin
- Dest.Data.a := Dest.Data.a xor Dest.Range.a;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapFillWithColorFunc(var aFuncRec: TglBitmapFunctionRec);
-var
- i: Integer;
-begin
- with aFuncRec do begin
- for i := 0 to 3 do
- Dest.Data.arr[i] := PglBitmapPixelData(Args)^.Data.arr[i];
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapAlphaFunc(var FuncRec: TglBitmapFunctionRec);
-var
- Temp: Single;
-begin
- with FuncRec do begin
- if (FuncRec.Args = nil) then begin //source has no alpha
- Temp :=
- Source.Data.r / Source.Range.r * ALPHA_WEIGHT_R +
- Source.Data.g / Source.Range.g * ALPHA_WEIGHT_G +
- Source.Data.b / Source.Range.b * ALPHA_WEIGHT_B;
- Dest.Data.a := Round(Dest.Range.a * Temp);
- end else
- Dest.Data.a := Round(Source.Data.a / Source.Range.a * Dest.Range.a);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapColorKeyAlphaFunc(var FuncRec: TglBitmapFunctionRec);
-type
- PglBitmapPixelData = ^TglBitmapPixelData;
-begin
- with FuncRec do begin
- Dest.Data.r := Source.Data.r;
- Dest.Data.g := Source.Data.g;
- Dest.Data.b := Source.Data.b;
-
- with PglBitmapPixelData(Args)^ do
- if ((Dest.Data.r <= Data.r) and (Dest.Data.r >= Range.r) and
- (Dest.Data.g <= Data.g) and (Dest.Data.g >= Range.g) and
- (Dest.Data.b <= Data.b) and (Dest.Data.b >= Range.b)) then
- Dest.Data.a := 0
- else
- Dest.Data.a := Dest.Range.a;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapValueAlphaFunc(var FuncRec: TglBitmapFunctionRec);
-begin
- with FuncRec do begin
- Dest.Data.r := Source.Data.r;
- Dest.Data.g := Source.Data.g;
- Dest.Data.b := Source.Data.b;
- Dest.Data.a := PCardinal(Args)^;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure SwapRGB(aData: PByte; aWidth: Integer; const aHasAlpha: Boolean);
-type
- PRGBPix = ^TRGBPix;
- TRGBPix = array [0..2] of byte;
-var
- Temp: Byte;
-begin
- while aWidth > 0 do begin
- Temp := PRGBPix(aData)^[0];
- PRGBPix(aData)^[0] := PRGBPix(aData)^[2];
- PRGBPix(aData)^[2] := Temp;
-
- if aHasAlpha then
- Inc(aData, 4)
- else
- Inc(aData, 3);
- dec(aWidth);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap - PROTECTED///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetFormatDesc: TglBitmapFormatDescriptor;
-begin
- result := TFormatDescriptor.Get(Format);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetWidth: Integer;
-begin
- if (ffX in fDimension.Fields) then
- result := fDimension.X
- else
- result := -1;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetHeight: Integer;
-begin
- if (ffY in fDimension.Fields) then
- result := fDimension.Y
- else
- result := -1;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetFileWidth: Integer;
-begin
- result := Max(1, Width);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetFileHeight: Integer;
-begin
- result := Max(1, Height);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetCustomData(const aValue: Pointer);
-begin
- if fCustomData = aValue then
- exit;
- fCustomData := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetCustomName(const aValue: String);
-begin
- if fCustomName = aValue then
- exit;
- fCustomName := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetCustomNameW(const aValue: WideString);
-begin
- if fCustomNameW = aValue then
- exit;
- fCustomNameW := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFreeDataOnDestroy(const aValue: Boolean);
-begin
- if fFreeDataOnDestroy = aValue then
- exit;
- fFreeDataOnDestroy := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetDeleteTextureOnFree(const aValue: Boolean);
-begin
- if fDeleteTextureOnFree = aValue then
- exit;
- fDeleteTextureOnFree := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFormat(const aValue: TglBitmapFormat);
-begin
- if fFormat = aValue then
- exit;
- if TFormatDescriptor.Get(Format).PixelSize <> TFormatDescriptor.Get(aValue).PixelSize then
- raise EglBitmapUnsupportedFormat.Create(Format);
- SetDataPointer(fData, aValue, Width, Height); //be careful, Data could be freed by this method
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFreeDataAfterGenTexture(const aValue: Boolean);
-begin
- if fFreeDataAfterGenTexture = aValue then
- exit;
- fFreeDataAfterGenTexture := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetID(const aValue: Cardinal);
-begin
- if fID = aValue then
- exit;
- fID := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetMipMap(const aValue: TglBitmapMipMap);
-begin
- if fMipMap = aValue then
- exit;
- fMipMap := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetTarget(const aValue: Cardinal);
-begin
- if fTarget = aValue then
- exit;
- fTarget := aValue;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetAnisotropic(const aValue: Integer);
-var
- MaxAnisotropic: Integer;
-begin
- fAnisotropic := aValue;
- if (ID > 0) then begin
- if GL_EXT_texture_filter_anisotropic then begin
- if fAnisotropic > 0 then begin
- Bind(false);
- glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, @MaxAnisotropic);
- if aValue > MaxAnisotropic then
- fAnisotropic := MaxAnisotropic;
- glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
- end;
- end else begin
- fAnisotropic := 0;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.CreateID;
-begin
- if (ID <> 0) then
- glDeleteTextures(1, @fID);
- glGenTextures(1, @fID);
- Bind(false);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetupParameters(out aBuildWithGlu: Boolean);
-begin
- // Set Up Parameters
- SetWrap(fWrapS, fWrapT, fWrapR);
- SetFilter(fFilterMin, fFilterMag);
- SetAnisotropic(fAnisotropic);
- SetBorderColor(fBorderColor[0], fBorderColor[1], fBorderColor[2], fBorderColor[3]);
-
- if (GL_ARB_texture_swizzle or GL_EXT_texture_swizzle or GL_VERSION_3_3) then
- SetSwizzle(fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
-
- // Mip Maps Generation Mode
- aBuildWithGlu := false;
- if (MipMap = mmMipmap) then begin
- if (GL_VERSION_1_4 or GL_SGIS_generate_mipmap) then
- glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE)
- else
- aBuildWithGlu := true;
- end else if (MipMap = mmMipmapGlu) then
- aBuildWithGlu := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
-var
- s: Single;
-begin
- if (Data <> aData) then begin
- if (Assigned(Data)) then
- FreeMem(Data);
- fData := aData;
- end;
-
- if not Assigned(fData) then begin
- fPixelSize := 0;
- fRowSize := 0;
- end else begin
- FillChar(fDimension, SizeOf(fDimension), 0);
- if aWidth <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffX];
- fDimension.X := aWidth;
- end;
-
- if aHeight <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffY];
- fDimension.Y := aHeight;
- end;
-
- s := TFormatDescriptor.Get(aFormat).PixelSize;
- fFormat := aFormat;
- fPixelSize := Ceil(s);
- fRowSize := Ceil(s * aWidth);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.FlipHorz: Boolean;
-begin
- result := false;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.FlipVert: Boolean;
-begin
- result := false;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap - PUBLIC//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.AfterConstruction;
-begin
- inherited AfterConstruction;
-
- fID := 0;
- fTarget := 0;
- fIsResident := false;
-
- fMipMap := glBitmapDefaultMipmap;
- fFreeDataAfterGenTexture := glBitmapGetDefaultFreeDataAfterGenTexture;
- fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
-
- glBitmapGetDefaultFilter (fFilterMin, fFilterMag);
- glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
- glBitmapGetDefaultSwizzle (fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.BeforeDestruction;
-var
- NewData: PByte;
-begin
- if fFreeDataOnDestroy then begin
- NewData := nil;
- SetDataPointer(NewData, tfEmpty); //be careful, Data could be freed by this method
- end;
- if (fID > 0) and fDeleteTextureOnFree then
- glDeleteTextures(1, @fID);
- inherited BeforeDestruction;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.PrepareResType(var aResource: String; var aResType: PChar);
-var
- TempPos: Integer;
-begin
- if not Assigned(aResType) then begin
- TempPos := Pos('.', aResource);
- aResType := PChar(UpperCase(Copy(aResource, TempPos + 1, Length(aResource) - TempPos)));
- aResource := UpperCase(Copy(aResource, 0, TempPos -1));
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromFile(const aFilename: String);
-var
- fs: TFileStream;
-begin
- if not FileExists(aFilename) then
- raise EglBitmap.Create('file does not exist: ' + aFilename);
- fFilename := aFilename;
- fs := TFileStream.Create(fFilename, fmOpenRead);
- try
- fs.Position := 0;
- LoadFromStream(fs);
- finally
- fs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromStream(const aStream: TStream);
-begin
- {$IFDEF GLB_SUPPORT_PNG_READ}
- if not LoadPNG(aStream) then
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- if not LoadJPEG(aStream) then
- {$ENDIF}
- if not LoadDDS(aStream) then
- if not LoadTGA(aStream) then
- if not LoadBMP(aStream) then
- raise EglBitmap.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer);
-var
- tmpData: PByte;
- size: Integer;
-begin
- size := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(tmpData, size);
- try
- FillChar(tmpData^, size, #$FF);
- SetDataPointer(tmpData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
- except
- if Assigned(tmpData) then
- FreeMem(tmpData);
- raise;
- end;
- AddFunc(Self, aFunc, false, aFormat, aArgs);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar);
-var
- rs: TResourceStream;
-begin
- PrepareResType(aResource, aResType);
- rs := TResourceStream.Create(aInstance, aResource, aResType);
- try
- LoadFromStream(rs);
- finally
- rs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
-var
- rs: TResourceStream;
-begin
- rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
- try
- LoadFromStream(rs);
- finally
- rs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
-var
- fs: TFileStream;
-begin
- fs := TFileStream.Create(aFileName, fmCreate);
- try
- fs.Position := 0;
- SaveToStream(fs, aFileType);
- finally
- fs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType);
-begin
- case aFileType of
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- ftPNG: SavePNG(aStream);
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- ftJPEG: SaveJPEG(aStream);
- {$ENDIF}
- ftDDS: SaveDDS(aStream);
- ftTGA: SaveTGA(aStream);
- ftBMP: SaveBMP(aStream);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer): Boolean;
-begin
- result := AddFunc(Self, aFunc, aCreateTemp, Format, aArgs);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
- const aFormat: TglBitmapFormat; const aArgs: Pointer): Boolean;
-var
- DestData, TmpData, SourceData: pByte;
- TempHeight, TempWidth: Integer;
- SourceFD, DestFD: TFormatDescriptor;
- SourceMD, DestMD: Pointer;
-
- FuncRec: TglBitmapFunctionRec;
-begin
- Assert(Assigned(Data));
- Assert(Assigned(aSource));
- Assert(Assigned(aSource.Data));
-
- result := false;
- if Assigned(aSource.Data) and ((aSource.Height > 0) or (aSource.Width > 0)) then begin
- SourceFD := TFormatDescriptor.Get(aSource.Format);
- DestFD := TFormatDescriptor.Get(aFormat);
-
- if (SourceFD.IsCompressed) then
- raise EglBitmapUnsupportedFormat.Create('compressed formats are not supported: ', SourceFD.Format);
- if (DestFD.IsCompressed) then
- raise EglBitmapUnsupportedFormat.Create('compressed formats are not supported: ', DestFD.Format);
-
- // inkompatible Formats so CreateTemp
- if (SourceFD.PixelSize <> DestFD.PixelSize) then
- aCreateTemp := true;
-
- // Values
- TempHeight := Max(1, aSource.Height);
- TempWidth := Max(1, aSource.Width);
-
- FuncRec.Sender := Self;
- FuncRec.Args := aArgs;
-
- TmpData := nil;
- if aCreateTemp then begin
- GetMem(TmpData, DestFD.GetSize(TempWidth, TempHeight));
- DestData := TmpData;
- end else
- DestData := Data;
-
- try
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
-
- SourceMD := SourceFD.CreateMappingData;
- DestMD := DestFD.CreateMappingData;
-
- FuncRec.Size := aSource.Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- try
- SourceData := aSource.Data;
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
- aFunc(FuncRec);
- DestFD.Map(FuncRec.Dest, DestData, DestMD);
- inc(FuncRec.Position.X);
- end;
- inc(FuncRec.Position.Y);
- end;
-
- // Updating Image or InternalFormat
- if aCreateTemp then
- SetDataPointer(TmpData, aFormat, aSource.Width, aSource.Height) //be careful, Data could be freed by this method
- else if (aFormat <> fFormat) then
- Format := aFormat;
-
- result := true;
- finally
- SourceFD.FreeMappingData(SourceMD);
- DestFD.FreeMappingData(DestMD);
- end;
- except
- if aCreateTemp and Assigned(TmpData) then
- FreeMem(TmpData);
- raise;
- end;
- end;
-end;
-
-{$IFDEF GLB_SDL}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignToSurface(out aSurface: PSDL_Surface): Boolean;
-var
- Row, RowSize: Integer;
- SourceData, TmpData: PByte;
- TempDepth: Integer;
- FormatDesc: TFormatDescriptor;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface.pixels;
- Inc(result, Row * RowSize);
- end;
-
-begin
- result := false;
-
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- if Assigned(Data) then begin
- case Trunc(FormatDesc.PixelSize) of
- 1: TempDepth := 8;
- 2: TempDepth := 16;
- 3: TempDepth := 24;
- 4: TempDepth := 32;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
-
- aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, TempDepth,
- FormatDesc.RedMask, FormatDesc.GreenMask, FormatDesc.BlueMask, FormatDesc.AlphaMask);
- SourceData := Data;
- RowSize := FormatDesc.GetSize(FileWidth, 1);
-
- for Row := 0 to FileHeight-1 do begin
- TmpData := GetRowPointer(Row);
- if Assigned(TmpData) then begin
- Move(SourceData^, TmpData^, RowSize);
- inc(SourceData, RowSize);
- end;
- end;
- result := true;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
-var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface^.pixels;
- Inc(result, Row * RowSize);
- end;
-
-begin
- result := false;
- if (Assigned(aSurface)) then begin
- with aSurface^.format^ do begin
- for IntFormat := High(TglBitmapFormat) to Low(TglBitmapFormat) do begin
- FormatDesc := TFormatDescriptor.Get(IntFormat);
- if (FormatDesc.MaskMatch(RMask, GMask, BMask, AMask)) then
- break;
- end;
- if (IntFormat = tfEmpty) then
- raise EglBitmapException.Create('AssignFromSurface - Invalid Pixelformat.');
- end;
-
- TempWidth := aSurface^.w;
- TempHeight := aSurface^.h;
- RowSize := FormatDesc.GetSize(TempWidth, 1);
- GetMem(pData, TempHeight * RowSize);
- try
- pTempData := pData;
- for Row := 0 to TempHeight -1 do begin
- pSource := GetRowPointer(Row);
- if (Assigned(pSource)) then begin
- Move(pSource^, pTempData^, RowSize);
- Inc(pTempData, RowSize);
- end;
- end;
- SetDataPointer(pData, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(pData) then
- FreeMem(pData);
- raise;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
-var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface.pixels;
- Inc(result, Row * Width);
- end;
-
-begin
- result := false;
- if Assigned(Data) then begin
- if Format in [tfAlpha8, tfLuminance8Alpha8, tfBGRA8, tfRGBA8] then begin
- aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
-
- AlphaInterleave := 0;
- case Format of
- tfLuminance8Alpha8:
- AlphaInterleave := 1;
- tfBGRA8, tfRGBA8:
- AlphaInterleave := 3;
- end;
-
- pSource := Data;
- for Row := 0 to Height -1 do begin
- pDest := GetRowPointer(Row);
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
- result := true;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
-var
- bmp: TglBitmap2D;
-begin
- bmp := TglBitmap2D.Create;
- try
- bmp.AssignFromSurface(aSurface);
- result := AddAlphaFromGlBitmap(bmp, aFunc, aArgs);
- finally
- bmp.Free;
- end;
-end;
-{$ENDIF}
-
-{$IFDEF GLB_DELPHI}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function CreateGrayPalette: HPALETTE;
-var
- Idx: Integer;
- Pal: PLogPalette;
-begin
- GetMem(Pal, SizeOf(TLogPalette) + (SizeOf(TPaletteEntry) * 256));
-
- Pal.palVersion := $300;
- Pal.palNumEntries := 256;
-
- for Idx := 0 to Pal.palNumEntries - 1 do begin
- Pal.palPalEntry[Idx].peRed := Idx;
- Pal.palPalEntry[Idx].peGreen := Idx;
- Pal.palPalEntry[Idx].peBlue := Idx;
- Pal.palPalEntry[Idx].peFlags := 0;
- end;
- Result := CreatePalette(Pal^);
- FreeMem(Pal);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignToBitmap(const aBitmap: TBitmap): Boolean;
-var
- Row: Integer;
- pSource, pData: PByte;
-begin
- result := false;
- if Assigned(Data) then begin
- if Assigned(aBitmap) then begin
- aBitmap.Width := Width;
- aBitmap.Height := Height;
-
- case Format of
- tfAlpha8, tfLuminance8: begin
- aBitmap.PixelFormat := pf8bit;
- aBitmap.Palette := CreateGrayPalette;
- end;
- tfRGB5A1:
- aBitmap.PixelFormat := pf15bit;
- tfR5G6B5:
- aBitmap.PixelFormat := pf16bit;
- tfRGB8, tfBGR8:
- aBitmap.PixelFormat := pf24bit;
- tfRGBA8, tfBGRA8:
- aBitmap.PixelFormat := pf32bit;
- else
- raise EglBitmap.Create('AssignToBitmap - Invalid Pixelformat.');
- end;
-
- pSource := Data;
- for Row := 0 to FileHeight -1 do begin
- pData := aBitmap.Scanline[Row];
- Move(pSource^, pData^, fRowSize);
- Inc(pSource, fRowSize);
- if (Format in [tfRGB8, tfRGBA8]) then // swap RGB(A) to BGR(A)
- SwapRGB(pData, FileWidth, Format = tfRGBA8);
- end;
- result := true;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromBitmap(const aBitmap: TBitmap): Boolean;
-var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapFormat;
-begin
- result := false;
-
- if (Assigned(aBitmap)) then begin
- case aBitmap.PixelFormat of
- pf8bit:
- IntFormat := tfLuminance8;
- pf15bit:
- IntFormat := tfRGB5A1;
- pf16bit:
- IntFormat := tfR5G6B5;
- pf24bit:
- IntFormat := tfBGR8;
- pf32bit:
- IntFormat := tfBGRA8;
- else
- raise EglBitmap.Create('AssignFromBitmap - Invalid Pixelformat.');
- end;
-
- TempWidth := aBitmap.Width;
- TempHeight := aBitmap.Height;
- RowSize := TFormatDescriptor.Get(IntFormat).GetSize(TempWidth, 1);
- GetMem(pData, TempHeight * RowSize);
- try
- pTempData := pData;
- for Row := 0 to TempHeight -1 do begin
- pSource := aBitmap.Scanline[Row];
- if (Assigned(pSource)) then begin
- Move(pSource^, pTempData^, RowSize);
- Inc(pTempData, RowSize);
- end;
- end;
- SetDataPointer(pData, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(pData) then
- FreeMem(pData);
- raise;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
-var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
-begin
- result := false;
-
- if Assigned(Data) then begin
- if (Format in [tfAlpha8, tfLuminance8Alpha8, tfRGBA8, tfBGRA8]) then begin
- if Assigned(aBitmap) then begin
- aBitmap.PixelFormat := pf8bit;
- aBitmap.Palette := CreateGrayPalette;
- aBitmap.Width := Width;
- aBitmap.Height := Height;
-
- case Format of
- tfLuminance8Alpha8:
- AlphaInterleave := 1;
- tfRGBA8, tfBGRA8:
- AlphaInterleave := 3;
- else
- AlphaInterleave := 0;
- end;
-
- // Copy Data
- pSource := Data;
-
- for Row := 0 to Height -1 do begin
- pDest := aBitmap.Scanline[Row];
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
- result := true;
- end;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- tex: TglBitmap2D;
-begin
- tex := TglBitmap2D.Create;
- try
- tex.AssignFromBitmap(ABitmap);
- result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
- finally
- tex.Free;
- end;
-end;
-{$ENDIF}
-
-{$IFDEF GLB_LAZARUS}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
-var
- rid: TRawImageDescription;
- FormatDesc: TFormatDescriptor;
-begin
- result := false;
- if not Assigned(aImage) or (Format = tfEmpty) then
- exit;
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then
- exit;
-
- FillChar(rid{%H-}, SizeOf(rid), 0);
- if (Format in [
- tfAlpha4, tfAlpha8, tfAlpha12, tfAlpha16,
- tfLuminance4, tfLuminance8, tfLuminance12, tfLuminance16,
- tfLuminance4Alpha4, tfLuminance8Alpha8, tfLuminance12Alpha4, tfLuminance12Alpha12, tfLuminance16Alpha16]) then
- rid.Format := ricfGray
- else
- rid.Format := ricfRGBA;
-
- rid.Width := Width;
- rid.Height := Height;
- rid.Depth := CountSetBits(FormatDesc.RedMask or FormatDesc.GreenMask or FormatDesc.BlueMask or FormatDesc.AlphaMask);
- rid.BitOrder := riboBitsInOrder;
- rid.ByteOrder := riboLSBFirst;
- rid.LineOrder := riloTopToBottom;
- rid.LineEnd := rileTight;
- rid.BitsPerPixel := Round(8 * FormatDesc.PixelSize);
- rid.RedPrec := CountSetBits(FormatDesc.Range.r);
- rid.GreenPrec := CountSetBits(FormatDesc.Range.g);
- rid.BluePrec := CountSetBits(FormatDesc.Range.b);
- rid.AlphaPrec := CountSetBits(FormatDesc.Range.a);
- rid.RedShift := FormatDesc.Shift.r;
- rid.GreenShift := FormatDesc.Shift.g;
- rid.BlueShift := FormatDesc.Shift.b;
- rid.AlphaShift := FormatDesc.Shift.a;
-
- rid.MaskBitsPerPixel := 0;
- rid.PaletteColorCount := 0;
-
- aImage.DataDescription := rid;
- aImage.CreateData;
-
- Move(Data^, aImage.PixelData^, FormatDesc.GetSize(Dimension));
-
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
-var
- f: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- ImageData: PByte;
- ImageSize: Integer;
- CanCopy: Boolean;
-
- procedure CopyConvert;
- var
- bfFormat: TbmpBitfieldFormat;
- pSourceLine, pDestLine: PByte;
- pSourceMD, pDestMD: Pointer;
- x, y: Integer;
- pixel: TglBitmapPixelData;
- begin
- bfFormat := TbmpBitfieldFormat.Create;
- with aImage.DataDescription do begin
- bfFormat.RedMask := ((1 shl RedPrec) - 1) shl RedShift;
- bfFormat.GreenMask := ((1 shl GreenPrec) - 1) shl GreenShift;
- bfFormat.BlueMask := ((1 shl BluePrec) - 1) shl BlueShift;
- bfFormat.AlphaMask := ((1 shl AlphaPrec) - 1) shl AlphaShift;
- bfFormat.PixelSize := BitsPerPixel / 8;
- end;
- pSourceMD := bfFormat.CreateMappingData;
- pDestMD := FormatDesc.CreateMappingData;
- try
- for y := 0 to aImage.Height-1 do begin
- pSourceLine := aImage.PixelData + y {%H-}* aImage.DataDescription.BytesPerLine;
- pDestLine := ImageData + y * Round(FormatDesc.PixelSize * aImage.Width);
- for x := 0 to aImage.Width-1 do begin
- bfFormat.Unmap(pSourceLine, pixel, pSourceMD);
- FormatDesc.Map(pixel, pDestLine, pDestMD);
- end;
- end;
- finally
- FormatDesc.FreeMappingData(pDestMD);
- bfFormat.FreeMappingData(pSourceMD);
- bfFormat.Free;
- end;
- end;
-
-begin
- result := false;
- if not Assigned(aImage) then
- exit;
- for f := High(f) downto Low(f) do begin
- FormatDesc := TFormatDescriptor.Get(f);
- with aImage.DataDescription do
- if FormatDesc.MaskMatch(
- (QWord(1 shl RedPrec )-1) shl RedShift,
- (QWord(1 shl GreenPrec)-1) shl GreenShift,
- (QWord(1 shl BluePrec )-1) shl BlueShift,
- (QWord(1 shl AlphaPrec)-1) shl AlphaShift) then
- break;
- end;
-
- if (f = tfEmpty) then
- exit;
-
- CanCopy :=
- (Round(FormatDesc.PixelSize * 8) = aImage.DataDescription.Depth) and
- (aImage.DataDescription.BitsPerPixel = aImage.DataDescription.Depth);
-
- ImageSize := FormatDesc.GetSize(aImage.Width, aImage.Height);
- ImageData := GetMem(ImageSize);
- try
- if CanCopy then
- Move(aImage.PixelData^, ImageData^, ImageSize)
- else
- CopyConvert;
- SetDataPointer(ImageData, f, aImage.Width, aImage.Height); //be careful, Data could be freed by this method
- except
- if Assigned(ImageData) then
- FreeMem(ImageData);
- raise;
- end;
-
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
-var
- rid: TRawImageDescription;
- FormatDesc: TFormatDescriptor;
- Pixel: TglBitmapPixelData;
- x, y: Integer;
- srcMD: Pointer;
- src, dst: PByte;
-begin
- result := false;
- if not Assigned(aImage) or (Format = tfEmpty) then
- exit;
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed or not FormatDesc.HasAlpha then
- exit;
-
- FillChar(rid{%H-}, SizeOf(rid), 0);
- rid.Format := ricfGray;
- rid.Width := Width;
- rid.Height := Height;
- rid.Depth := CountSetBits(FormatDesc.Range.a);
- rid.BitOrder := riboBitsInOrder;
- rid.ByteOrder := riboLSBFirst;
- rid.LineOrder := riloTopToBottom;
- rid.LineEnd := rileTight;
- rid.BitsPerPixel := 8 * Ceil(rid.Depth / 8);
- rid.RedPrec := CountSetBits(FormatDesc.Range.a);
- rid.GreenPrec := 0;
- rid.BluePrec := 0;
- rid.AlphaPrec := 0;
- rid.RedShift := 0;
- rid.GreenShift := 0;
- rid.BlueShift := 0;
- rid.AlphaShift := 0;
-
- rid.MaskBitsPerPixel := 0;
- rid.PaletteColorCount := 0;
-
- aImage.DataDescription := rid;
- aImage.CreateData;
-
- srcMD := FormatDesc.CreateMappingData;
- try
- FormatDesc.PreparePixel(Pixel);
- src := Data;
- dst := aImage.PixelData;
- for y := 0 to Height-1 do
- for x := 0 to Width-1 do begin
- FormatDesc.Unmap(src, Pixel, srcMD);
- case rid.BitsPerPixel of
- 8: begin
- dst^ := Pixel.Data.a;
- inc(dst);
- end;
- 16: begin
- PWord(dst)^ := Pixel.Data.a;
- inc(dst, 2);
- end;
- 24: begin
- PByteArray(dst)^[0] := PByteArray(@Pixel.Data.a)^[0];
- PByteArray(dst)^[1] := PByteArray(@Pixel.Data.a)^[1];
- PByteArray(dst)^[2] := PByteArray(@Pixel.Data.a)^[2];
- inc(dst, 3);
- end;
- 32: begin
- PCardinal(dst)^ := Pixel.Data.a;
- inc(dst, 4);
- end;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
- end;
- finally
- FormatDesc.FreeMappingData(srcMD);
- end;
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- tex: TglBitmap2D;
-begin
- tex := TglBitmap2D.Create;
- try
- tex.AssignFromLazIntfImage(aImage);
- result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
- finally
- tex.Free;
- end;
-end;
-{$ENDIF}
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- rs: TResourceStream;
-begin
- PrepareResType(aResource, aResType);
- rs := TResourceStream.Create(aInstance, aResource, aResType);
- try
- result := AddAlphaFromStream(rs, aFunc, aArgs);
- finally
- rs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- rs: TResourceStream;
-begin
- rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
- try
- result := AddAlphaFromStream(rs, aFunc, aArgs);
- finally
- rs.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-begin
- if TFormatDescriptor.Get(Format).IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(Format);
- result := AddFunc(Self, aFunc, false, TFormatDescriptor.Get(Format).WithAlpha, aArgs);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- FS: TFileStream;
-begin
- FS := TFileStream.Create(aFileName, fmOpenRead);
- try
- result := AddAlphaFromStream(FS, aFunc, aArgs);
- finally
- FS.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- tex: TglBitmap2D;
-begin
- tex := TglBitmap2D.Create(aStream);
- try
- result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
- finally
- tex.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-var
- DestData, DestData2, SourceData: pByte;
- TempHeight, TempWidth: Integer;
- SourceFD, DestFD: TFormatDescriptor;
- SourceMD, DestMD, DestMD2: Pointer;
-
- FuncRec: TglBitmapFunctionRec;
-begin
- result := false;
-
- Assert(Assigned(Data));
- Assert(Assigned(aBitmap));
- Assert(Assigned(aBitmap.Data));
-
- if ((aBitmap.Width = Width) and (aBitmap.Height = Height)) then begin
- result := ConvertTo(TFormatDescriptor.Get(Format).WithAlpha);
-
- SourceFD := TFormatDescriptor.Get(aBitmap.Format);
- DestFD := TFormatDescriptor.Get(Format);
-
- if not Assigned(aFunc) then begin
- aFunc := glBitmapAlphaFunc;
- FuncRec.Args := {%H-}Pointer(SourceFD.HasAlpha);
- end else
- FuncRec.Args := aArgs;
-
- // Values
- TempHeight := aBitmap.FileHeight;
- TempWidth := aBitmap.FileWidth;
-
- FuncRec.Sender := Self;
- FuncRec.Size := Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- DestData := Data;
- DestData2 := Data;
- SourceData := aBitmap.Data;
-
- // Mapping
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
-
- SourceMD := SourceFD.CreateMappingData;
- DestMD := DestFD.CreateMappingData;
- DestMD2 := DestFD.CreateMappingData;
- try
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
- DestFD.Unmap (DestData, FuncRec.Dest, DestMD);
- aFunc(FuncRec);
- DestFD.Map(FuncRec.Dest, DestData2, DestMD2);
- inc(FuncRec.Position.X);
- end;
- inc(FuncRec.Position.Y);
- end;
- finally
- SourceFD.FreeMappingData(SourceMD);
- DestFD.FreeMappingData(DestMD);
- DestFD.FreeMappingData(DestMD2);
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte): Boolean;
-begin
- result := AddAlphaFromColorKeyFloat(aRed / $FF, aGreen / $FF, aBlue / $FF, aDeviation / $FF);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal): Boolean;
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- result := AddAlphaFromColorKeyFloat(
- aRed / PixelData.Range.r,
- aGreen / PixelData.Range.g,
- aBlue / PixelData.Range.b,
- aDeviation / Max(PixelData.Range.r, Max(PixelData.Range.g, PixelData.Range.b)));
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single): Boolean;
-var
- values: array[0..2] of Single;
- tmp: Cardinal;
- i: Integer;
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- with PixelData do begin
- values[0] := aRed;
- values[1] := aGreen;
- values[2] := aBlue;
-
- for i := 0 to 2 do begin
- tmp := Trunc(Range.arr[i] * aDeviation);
- Data.arr[i] := Min(Range.arr[i], Trunc(Range.arr[i] * values[i] + tmp));
- Range.arr[i] := Max(0, Trunc(Range.arr[i] * values[i] - tmp));
- end;
- Data.a := 0;
- Range.a := 0;
- end;
- result := AddAlphaFromFunc(glBitmapColorKeyAlphaFunc, @PixelData);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValue(const aAlpha: Byte): Boolean;
-begin
- result := AddAlphaFromValueFloat(aAlpha / $FF);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- result := AddAlphaFromValueFloat(aAlpha / PixelData.Range.a);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- with PixelData do
- Data.a := Min(Range.a, Max(0, Round(Range.a * aAlpha)));
- result := AddAlphaFromFunc(glBitmapValueAlphaFunc, @PixelData.Data.a);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.RemoveAlpha: Boolean;
-var
- FormatDesc: TFormatDescriptor;
-begin
- result := false;
- FormatDesc := TFormatDescriptor.Get(Format);
- if Assigned(Data) then begin
- if FormatDesc.IsCompressed or not FormatDesc.HasAlpha then
- raise EglBitmapUnsupportedFormat.Create(Format);
- result := ConvertTo(FormatDesc.WithoutAlpha);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.Clone: TglBitmap;
-var
- Temp: TglBitmap;
- TempPtr: PByte;
- Size: Integer;
-begin
- result := nil;
- Temp := (ClassType.Create as TglBitmap);
- try
- // copy texture data if assigned
- if Assigned(Data) then begin
- Size := TFormatDescriptor.Get(Format).GetSize(fDimension);
- GetMem(TempPtr, Size);
- try
- Move(Data^, TempPtr^, Size);
- Temp.SetDataPointer(TempPtr, Format, Width, Height); //be careful, Data could be freed by this method
- except
- if Assigned(TempPtr) then
- FreeMem(TempPtr);
- raise;
- end;
- end else begin
- TempPtr := nil;
- Temp.SetDataPointer(TempPtr, Format, Width, Height); //be careful, Data could be freed by this method
- end;
-
- // copy properties
- Temp.fID := ID;
- Temp.fTarget := Target;
- Temp.fFormat := Format;
- Temp.fMipMap := MipMap;
- Temp.fAnisotropic := Anisotropic;
- Temp.fBorderColor := fBorderColor;
- Temp.fDeleteTextureOnFree := DeleteTextureOnFree;
- Temp.fFreeDataAfterGenTexture := FreeDataAfterGenTexture;
- Temp.fFilterMin := fFilterMin;
- Temp.fFilterMag := fFilterMag;
- Temp.fWrapS := fWrapS;
- Temp.fWrapT := fWrapT;
- Temp.fWrapR := fWrapR;
- Temp.fFilename := fFilename;
- Temp.fCustomName := fCustomName;
- Temp.fCustomNameW := fCustomNameW;
- Temp.fCustomData := fCustomData;
-
- result := Temp;
- except
- FreeAndNil(Temp);
- raise;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.ConvertTo(const aFormat: TglBitmapFormat): Boolean;
-var
- SourceFD, DestFD: TFormatDescriptor;
- SourcePD, DestPD: TglBitmapPixelData;
- ShiftData: TShiftData;
-
- function CanCopyDirect: Boolean;
- begin
- result :=
- ((SourcePD.Range.r = DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
- ((SourcePD.Range.g = DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
- ((SourcePD.Range.b = DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
- ((SourcePD.Range.a = DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
- end;
-
- function CanShift: Boolean;
- begin
- result :=
- ((SourcePD.Range.r >= DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
- ((SourcePD.Range.g >= DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
- ((SourcePD.Range.b >= DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
- ((SourcePD.Range.a >= DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
- end;
-
- function GetShift(aSource, aDest: Cardinal) : ShortInt;
- begin
- result := 0;
- while (aSource > aDest) and (aSource > 0) do begin
- inc(result);
- aSource := aSource shr 1;
- end;
- end;
-
-begin
- if (aFormat <> fFormat) and (aFormat <> tfEmpty) then begin
- SourceFD := TFormatDescriptor.Get(Format);
- DestFD := TFormatDescriptor.Get(aFormat);
-
- SourceFD.PreparePixel(SourcePD);
- DestFD.PreparePixel (DestPD);
-
- if CanCopyDirect then
- result := AddFunc(Self, glBitmapConvertCopyFunc, false, aFormat)
- else if CanShift then begin
- ShiftData.r := GetShift(SourcePD.Range.r, DestPD.Range.r);
- ShiftData.g := GetShift(SourcePD.Range.g, DestPD.Range.g);
- ShiftData.b := GetShift(SourcePD.Range.b, DestPD.Range.b);
- ShiftData.a := GetShift(SourcePD.Range.a, DestPD.Range.a);
- result := AddFunc(Self, glBitmapConvertShiftRGBAFunc, false, aFormat, @ShiftData);
- end else
- result := AddFunc(Self, glBitmapConvertCalculateRGBAFunc, false, aFormat);
- end else
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Invert(const aUseRGB: Boolean; const aUseAlpha: Boolean);
-begin
- if aUseRGB or aUseAlpha then
- AddFunc(glBitmapInvertFunc, false, {%H-}Pointer(
- ((Byte(aUseAlpha) and 1) shl 1) or
- (Byte(aUseRGB) and 1) ));
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
-begin
- fBorderColor[0] := aRed;
- fBorderColor[1] := aGreen;
- fBorderColor[2] := aBlue;
- fBorderColor[3] := aAlpha;
- if (ID > 0) then begin
- Bind(false);
- glTexParameterfv(Target, GL_TEXTURE_BORDER_COLOR, @fBorderColor[0]);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FreeData;
-var
- TempPtr: PByte;
-begin
- TempPtr := nil;
- SetDataPointer(TempPtr, tfEmpty); //be careful, Data could be freed by this method
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FillWithColor(const aRed, aGreen, aBlue: Byte;
- const aAlpha: Byte);
-begin
- FillWithColorFloat(aRed/$FF, aGreen/$FF, aBlue/$FF, aAlpha/$FF);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal);
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- FillWithColorFloat(
- aRed / PixelData.Range.r,
- aGreen / PixelData.Range.g,
- aBlue / PixelData.Range.b,
- aAlpha / PixelData.Range.a);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha: Single);
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.Get(Format).PreparePixel(PixelData);
- with PixelData do begin
- Data.r := Max(0, Min(Range.r, Trunc(Range.r * aRed)));
- Data.g := Max(0, Min(Range.g, Trunc(Range.g * aGreen)));
- Data.b := Max(0, Min(Range.b, Trunc(Range.b * aBlue)));
- Data.a := Max(0, Min(Range.a, Trunc(Range.a * aAlpha)));
- end;
- AddFunc(glBitmapFillWithColorFunc, false, @PixelData);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFilter(const aMin, aMag: GLenum);
-begin
- //check MIN filter
- case aMin of
- GL_NEAREST:
- fFilterMin := GL_NEAREST;
- GL_LINEAR:
- fFilterMin := GL_LINEAR;
- GL_NEAREST_MIPMAP_NEAREST:
- fFilterMin := GL_NEAREST_MIPMAP_NEAREST;
- GL_LINEAR_MIPMAP_NEAREST:
- fFilterMin := GL_LINEAR_MIPMAP_NEAREST;
- GL_NEAREST_MIPMAP_LINEAR:
- fFilterMin := GL_NEAREST_MIPMAP_LINEAR;
- GL_LINEAR_MIPMAP_LINEAR:
- fFilterMin := GL_LINEAR_MIPMAP_LINEAR;
- else
- raise EglBitmap.Create('SetFilter - Unknow MIN filter.');
- end;
-
- //check MAG filter
- case aMag of
- GL_NEAREST:
- fFilterMag := GL_NEAREST;
- GL_LINEAR:
- fFilterMag := GL_LINEAR;
- else
- raise EglBitmap.Create('SetFilter - Unknow MAG filter.');
- end;
-
- //apply filter
- if (ID > 0) then begin
- Bind(false);
- glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, fFilterMag);
-
- if (MipMap = mmNone) or (Target = GL_TEXTURE_RECTANGLE) then begin
- case fFilterMin of
- GL_NEAREST, GL_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- end;
- end else
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetWrap(const S: GLenum; const T: GLenum; const R: GLenum);
-
- procedure CheckAndSetWrap(const aValue: Cardinal; var aTarget: Cardinal);
- begin
- case aValue of
- GL_CLAMP:
- aTarget := GL_CLAMP;
-
- GL_REPEAT:
- aTarget := GL_REPEAT;
-
- GL_CLAMP_TO_EDGE: begin
- if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
- aTarget := GL_CLAMP_TO_EDGE
- else
- aTarget := GL_CLAMP;
- end;
-
- GL_CLAMP_TO_BORDER: begin
- if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
- aTarget := GL_CLAMP_TO_BORDER
- else
- aTarget := GL_CLAMP;
- end;
-
- GL_MIRRORED_REPEAT: begin
- if GL_VERSION_1_4 or GL_ARB_texture_mirrored_repeat or GL_IBM_texture_mirrored_repeat then
- aTarget := GL_MIRRORED_REPEAT
- else
- raise EglBitmap.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
- end;
- else
- raise EglBitmap.Create('SetWrap - Unknow Texturewrap');
- end;
- end;
-
-begin
- CheckAndSetWrap(S, fWrapS);
- CheckAndSetWrap(T, fWrapT);
- CheckAndSetWrap(R, fWrapR);
-
- if (ID > 0) then begin
- Bind(false);
- glTexParameteri(Target, GL_TEXTURE_WRAP_S, fWrapS);
- glTexParameteri(Target, GL_TEXTURE_WRAP_T, fWrapT);
- glTexParameteri(Target, GL_TEXTURE_WRAP_R, fWrapR);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetSwizzle(const r, g, b, a: GLenum);
-
- procedure CheckAndSetValue(const aValue: GLenum; const aIndex: Integer);
- begin
- if (aValue = GL_ZERO) or (aValue = GL_ONE) or (aValue = GL_ALPHA) or
- (aValue = GL_RED) or (aValue = GL_GREEN) or (aValue = GL_BLUE) then
- fSwizzle[aIndex] := aValue
- else
- raise EglBitmap.Create('SetSwizzle - Unknow Swizle Value');
- end;
-
-begin
- if not (GL_ARB_texture_swizzle or GL_EXT_texture_swizzle or GL_VERSION_3_3) then
- raise EglBitmapNotSupported.Create('texture swizzle is not supported');
- CheckAndSetValue(r, 0);
- CheckAndSetValue(g, 1);
- CheckAndSetValue(b, 2);
- CheckAndSetValue(a, 3);
-
- if (ID > 0) then begin
- Bind(false);
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_RGBA, PGLint(@fSwizzle[0]));
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Bind(const aEnableTextureUnit: Boolean);
-begin
- if aEnableTextureUnit then
- glEnable(Target);
- if (ID > 0) then
- glBindTexture(Target, ID);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Unbind(const aDisableTextureUnit: Boolean);
-begin
- if aDisableTextureUnit then
- glDisable(Target);
- glBindTexture(Target, 0);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create;
-begin
- if (ClassType = TglBitmap) then
- raise EglBitmap.Create('Don''t create TglBitmap directly. Use one of the deviated classes (TglBitmap2D) instead.');
-{$IFDEF GLB_NATIVE_OGL}
- glbReadOpenGLExtensions;
-{$ENDIF}
- inherited Create;
- fFormat := glBitmapGetDefaultFormat;
- fFreeDataOnDestroy := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aFileName: String);
-begin
- Create;
- LoadFromFile(aFileName);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aStream: TStream);
-begin
- Create;
- LoadFromStream(aStream);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; aData: PByte);
-var
- ImageSize: Integer;
-begin
- Create;
- if not Assigned(aData) then begin
- ImageSize := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(aData, ImageSize);
- try
- FillChar(aData^, ImageSize, #$FF);
- SetDataPointer(aData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
- except
- if Assigned(aData) then
- FreeMem(aData);
- raise;
- end;
- end else begin
- SetDataPointer(aData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
- fFreeDataOnDestroy := false;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer);
-begin
- Create;
- LoadFromFunc(aSize, aFunc, aFormat, aArgs);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar);
-begin
- Create;
- LoadFromResource(aInstance, aResource, aResType);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
-begin
- Create;
- LoadFromResourceID(aInstance, aResourceID, aResType);
-end;
-
-{$IFDEF GLB_SUPPORT_PNG_READ}
-{$IF DEFINED(GLB_LAZ_PNG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//PNG/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
-const
- MAGIC_LEN = 8;
- PNG_MAGIC: String[MAGIC_LEN] = #$89#$50#$4E#$47#$0D#$0A#$1A#$0A;
-var
- reader: TLazReaderPNG;
- intf: TLazIntfImage;
- StreamPos: Int64;
- magic: String[MAGIC_LEN];
-begin
- result := true;
- StreamPos := aStream.Position;
-
- SetLength(magic, MAGIC_LEN);
- aStream.Read(magic[1], MAGIC_LEN);
- aStream.Position := StreamPos;
- if (magic <> PNG_MAGIC) then begin
- result := false;
- exit;
- end;
-
- intf := TLazIntfImage.Create(0, 0);
- reader := TLazReaderPNG.Create;
- try try
- reader.UpdateDescription := true;
- reader.ImageRead(aStream, intf);
- AssignFromLazIntfImage(intf);
- except
- result := false;
- aStream.Position := StreamPos;
- exit;
- end;
- finally
- reader.Free;
- intf.Free;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
-var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
-begin
- result := false;
- RWops := glBitmapCreateRWops(aStream);
- try
- if IMG_isPNG(RWops) > 0 then begin
- Surface := IMG_LoadPNG_RW(RWops);
- try
- AssignFromSurface(Surface);
- result := true;
- finally
- SDL_FreeSurface(Surface);
- end;
- end;
- finally
- SDL_FreeRW(RWops);
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_LIB_PNG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmap_libPNG_read_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
-begin
- TStream(png_get_io_ptr(png)).Read(buffer^, size);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
-var
- StreamPos: Int64;
- signature: array [0..7] of byte;
- png: png_structp;
- png_info: png_infop;
-
- TempHeight, TempWidth: Integer;
- Format: TglBitmapFormat;
-
- png_data: pByte;
- png_rows: array of pByte;
- Row, LineSize: Integer;
-begin
- result := false;
-
- if not init_libPNG then
- raise Exception.Create('LoadPNG - unable to initialize libPNG.');
-
- try
- // signature
- StreamPos := aStream.Position;
- aStream.Read(signature{%H-}, 8);
- aStream.Position := StreamPos;
-
- if png_check_sig(@signature, 8) <> 0 then begin
- // png read struct
- png := png_create_read_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
- if png = nil then
- raise EglBitmapException.Create('LoadPng - couldn''t create read struct.');
-
- // png info
- png_info := png_create_info_struct(png);
- if png_info = nil then begin
- png_destroy_read_struct(@png, nil, nil);
- raise EglBitmapException.Create('LoadPng - couldn''t create info struct.');
- end;
-
- // set read callback
- png_set_read_fn(png, aStream, glBitmap_libPNG_read_func);
-
- // read informations
- png_read_info(png, png_info);
-
- // size
- TempHeight := png_get_image_height(png, png_info);
- TempWidth := png_get_image_width(png, png_info);
-
- // format
- case png_get_color_type(png, png_info) of
- PNG_COLOR_TYPE_GRAY:
- Format := tfLuminance8;
- PNG_COLOR_TYPE_GRAY_ALPHA:
- Format := tfLuminance8Alpha8;
- PNG_COLOR_TYPE_RGB:
- Format := tfRGB8;
- PNG_COLOR_TYPE_RGB_ALPHA:
- Format := tfRGBA8;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- // cut upper 8 bit from 16 bit formats
- if png_get_bit_depth(png, png_info) > 8 then
- png_set_strip_16(png);
-
- // expand bitdepth smaller than 8
- if png_get_bit_depth(png, png_info) < 8 then
- png_set_expand(png);
-
- // allocating mem for scanlines
- LineSize := png_get_rowbytes(png, png_info);
- GetMem(png_data, TempHeight * LineSize);
- try
- SetLength(png_rows, TempHeight);
- for Row := Low(png_rows) to High(png_rows) do begin
- png_rows[Row] := png_data;
- Inc(png_rows[Row], Row * LineSize);
- end;
-
- // read complete image into scanlines
- png_read_image(png, @png_rows[0]);
-
- // read end
- png_read_end(png, png_info);
-
- // destroy read struct
- png_destroy_read_struct(@png, @png_info, nil);
-
- SetLength(png_rows, 0);
-
- // set new data
- SetDataPointer(png_data, Format, TempWidth, TempHeight); //be careful, Data could be freed by this method
-
- result := true;
- except
- if Assigned(png_data) then
- FreeMem(png_data);
- raise;
- end;
- end;
- finally
- quit_libPNG;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_PNGIMAGE)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
-var
- StreamPos: Int64;
- Png: TPNGObject;
- Header: String[8];
- Row, Col, PixSize, LineSize: Integer;
- NewImage, pSource, pDest, pAlpha: pByte;
- PngFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-
-const
- PngHeader: String[8] = #137#80#78#71#13#10#26#10;
-
-begin
- result := false;
-
- StreamPos := aStream.Position;
- aStream.Read(Header[0], SizeOf(Header));
- aStream.Position := StreamPos;
-
- {Test if the header matches}
- if Header = PngHeader then begin
- Png := TPNGObject.Create;
- try
- Png.LoadFromStream(aStream);
-
- case Png.Header.ColorType of
- COLOR_GRAYSCALE:
- PngFormat := tfLuminance8;
- COLOR_GRAYSCALEALPHA:
- PngFormat := tfLuminance8Alpha8;
- COLOR_RGB:
- PngFormat := tfBGR8;
- COLOR_RGBALPHA:
- PngFormat := tfBGRA8;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- FormatDesc := TFormatDescriptor.Get(PngFormat);
- PixSize := Round(FormatDesc.PixelSize);
- LineSize := FormatDesc.GetSize(Png.Header.Width, 1);
-
- GetMem(NewImage, LineSize * Integer(Png.Header.Height));
- try
- pDest := NewImage;
-
- case Png.Header.ColorType of
- COLOR_RGB, COLOR_GRAYSCALE:
- begin
- for Row := 0 to Png.Height -1 do begin
- Move (Png.Scanline[Row]^, pDest^, LineSize);
- Inc(pDest, LineSize);
- end;
- end;
- COLOR_RGBALPHA, COLOR_GRAYSCALEALPHA:
- begin
- PixSize := PixSize -1;
-
- for Row := 0 to Png.Height -1 do begin
- pSource := Png.Scanline[Row];
- pAlpha := pByte(Png.AlphaScanline[Row]);
-
- for Col := 0 to Png.Width -1 do begin
- Move (pSource^, pDest^, PixSize);
- Inc(pSource, PixSize);
- Inc(pDest, PixSize);
-
- pDest^ := pAlpha^;
- inc(pAlpha);
- Inc(pDest);
- end;
- end;
- end;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- SetDataPointer(NewImage, PngFormat, Png.Header.Width, Png.Header.Height); //be careful, Data could be freed by this method
-
- result := true;
- except
- if Assigned(NewImage) then
- FreeMem(NewImage);
- raise;
- end;
- finally
- Png.Free;
- end;
- end;
-end;
-{$IFEND}
-{$ENDIF}
-
-{$IFDEF GLB_SUPPORT_PNG_WRITE}
-{$IFDEF GLB_LIB_PNG}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmap_libPNG_write_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
-begin
- TStream(png_get_io_ptr(png)).Write(buffer^, size);
-end;
-{$ENDIF}
-
-{$IF DEFINED(GLB_LAZ_PNG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SavePNG(const aStream: TStream);
-var
- png: TPortableNetworkGraphic;
- intf: TLazIntfImage;
- raw: TRawImage;
-begin
- png := TPortableNetworkGraphic.Create;
- intf := TLazIntfImage.Create(0, 0);
- try
- if not AssignToLazIntfImage(intf) then
- raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
- intf.GetRawImage(raw);
- png.LoadFromRawImage(raw, false);
- png.SaveToStream(aStream);
- finally
- png.Free;
- intf.Free;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_LIB_PNG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SavePNG(const aStream: TStream);
-var
- png: png_structp;
- png_info: png_infop;
- png_rows: array of pByte;
- LineSize: Integer;
- ColorType: Integer;
- Row: Integer;
- FormatDesc: TFormatDescriptor;
-begin
- if not (ftPNG in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- if not init_libPNG then
- raise Exception.Create('unable to initialize libPNG.');
-
- try
- case Format of
- tfAlpha8, tfLuminance8:
- ColorType := PNG_COLOR_TYPE_GRAY;
- tfLuminance8Alpha8:
- ColorType := PNG_COLOR_TYPE_GRAY_ALPHA;
- tfBGR8, tfRGB8:
- ColorType := PNG_COLOR_TYPE_RGB;
- tfBGRA8, tfRGBA8:
- ColorType := PNG_COLOR_TYPE_RGBA;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
-
- FormatDesc := TFormatDescriptor.Get(Format);
- LineSize := FormatDesc.GetSize(Width, 1);
-
- // creating array for scanline
- SetLength(png_rows, Height);
- try
- for Row := 0 to Height - 1 do begin
- png_rows[Row] := Data;
- Inc(png_rows[Row], Row * LineSize)
- end;
-
- // write struct
- png := png_create_write_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
- if png = nil then
- raise EglBitmapException.Create('SavePng - couldn''t create write struct.');
-
- // create png info
- png_info := png_create_info_struct(png);
- if png_info = nil then begin
- png_destroy_write_struct(@png, nil);
- raise EglBitmapException.Create('SavePng - couldn''t create info struct.');
- end;
-
- // set read callback
- png_set_write_fn(png, aStream, glBitmap_libPNG_write_func, nil);
-
- // set compression
- png_set_compression_level(png, 6);
-
- if Format in [tfBGR8, tfBGRA8] then
- png_set_bgr(png);
-
- png_set_IHDR(png, png_info, Width, Height, 8, ColorType, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
- png_write_info(png, png_info);
- png_write_image(png, @png_rows[0]);
- png_write_end(png, png_info);
- png_destroy_write_struct(@png, @png_info);
- finally
- SetLength(png_rows, 0);
- end;
- finally
- quit_libPNG;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_PNGIMAGE)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SavePNG(const aStream: TStream);
-var
- Png: TPNGObject;
-
- pSource, pDest: pByte;
- X, Y, PixSize: Integer;
- ColorType: Cardinal;
- Alpha: Boolean;
-
- pTemp: pByte;
- Temp: Byte;
-begin
- if not (ftPNG in FormatGetSupportedFiles (Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- case Format of
- tfAlpha8, tfLuminance8: begin
- ColorType := COLOR_GRAYSCALE;
- PixSize := 1;
- Alpha := false;
- end;
- tfLuminance8Alpha8: begin
- ColorType := COLOR_GRAYSCALEALPHA;
- PixSize := 1;
- Alpha := true;
- end;
- tfBGR8, tfRGB8: begin
- ColorType := COLOR_RGB;
- PixSize := 3;
- Alpha := false;
- end;
- tfBGRA8, tfRGBA8: begin
- ColorType := COLOR_RGBALPHA;
- PixSize := 3;
- Alpha := true
- end;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
-
- Png := TPNGObject.CreateBlank(ColorType, 8, Width, Height);
- try
- // Copy ImageData
- pSource := Data;
- for Y := 0 to Height -1 do begin
- pDest := png.ScanLine[Y];
- for X := 0 to Width -1 do begin
- Move(pSource^, pDest^, PixSize);
- Inc(pDest, PixSize);
- Inc(pSource, PixSize);
- if Alpha then begin
- png.AlphaScanline[Y]^[X] := pSource^;
- Inc(pSource);
- end;
- end;
-
- // convert RGB line to BGR
- if Format in [tfRGB8, tfRGBA8] then begin
- pTemp := png.ScanLine[Y];
- for X := 0 to Width -1 do begin
- Temp := pByteArray(pTemp)^[0];
- pByteArray(pTemp)^[0] := pByteArray(pTemp)^[2];
- pByteArray(pTemp)^[2] := Temp;
- Inc(pTemp, 3);
- end;
- end;
- end;
-
- // Save to Stream
- Png.CompressionLevel := 6;
- Png.SaveToStream(aStream);
- finally
- FreeAndNil(Png);
- end;
-end;
-{$IFEND}
-{$ENDIF}
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//JPEG////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-{$IFDEF GLB_LIB_JPEG}
-type
- glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
- glBitmap_libJPEG_source_mgr = record
- pub: jpeg_source_mgr;
-
- SrcStream: TStream;
- SrcBuffer: array [1..4096] of byte;
- end;
-
- glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
- glBitmap_libJPEG_dest_mgr = record
- pub: jpeg_destination_mgr;
-
- DestStream: TStream;
- DestBuffer: array [1..4096] of byte;
- end;
-
-procedure glBitmap_libJPEG_error_exit(cinfo: j_common_ptr); cdecl;
-begin
- //DUMMY
-end;
-
-
-procedure glBitmap_libJPEG_output_message(cinfo: j_common_ptr); cdecl;
-begin
- //DUMMY
-end;
-
-
-procedure glBitmap_libJPEG_init_source(cinfo: j_decompress_ptr); cdecl;
-begin
- //DUMMY
-end;
-
-procedure glBitmap_libJPEG_term_source(cinfo: j_decompress_ptr); cdecl;
-begin
- //DUMMY
-end;
-
-
-procedure glBitmap_libJPEG_init_destination(cinfo: j_compress_ptr); cdecl;
-begin
- //DUMMY
-end;
-
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmap_libJPEG_fill_input_buffer(cinfo: j_decompress_ptr): boolean; cdecl;
-var
- src: glBitmap_libJPEG_source_mgr_ptr;
- bytes: integer;
-begin
- src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
-
- bytes := src^.SrcStream.Read(src^.SrcBuffer[1], 4096);
- if (bytes <= 0) then begin
- src^.SrcBuffer[1] := $FF;
- src^.SrcBuffer[2] := JPEG_EOI;
- bytes := 2;
- end;
-
- src^.pub.next_input_byte := @(src^.SrcBuffer[1]);
- src^.pub.bytes_in_buffer := bytes;
-
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmap_libJPEG_skip_input_data(cinfo: j_decompress_ptr; num_bytes: Longint); cdecl;
-var
- src: glBitmap_libJPEG_source_mgr_ptr;
-begin
- src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
-
- if num_bytes > 0 then begin
- // wanted byte isn't in buffer so set stream position and read buffer
- if num_bytes > src^.pub.bytes_in_buffer then begin
- src^.SrcStream.Position := src^.SrcStream.Position + num_bytes - src^.pub.bytes_in_buffer;
- src^.pub.fill_input_buffer(cinfo);
- end else begin
- // wanted byte is in buffer so only skip
- inc(src^.pub.next_input_byte, num_bytes);
- dec(src^.pub.bytes_in_buffer, num_bytes);
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmap_libJPEG_empty_output_buffer(cinfo: j_compress_ptr): boolean; cdecl;
-var
- dest: glBitmap_libJPEG_dest_mgr_ptr;
-begin
- dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
-
- if dest^.pub.free_in_buffer < Cardinal(Length(dest^.DestBuffer)) then begin
- // write complete buffer
- dest^.DestStream.Write(dest^.DestBuffer[1], SizeOf(dest^.DestBuffer));
-
- // reset buffer
- dest^.pub.next_output_byte := @dest^.DestBuffer[1];
- dest^.pub.free_in_buffer := Length(dest^.DestBuffer);
- end;
-
- result := true;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmap_libJPEG_term_destination(cinfo: j_compress_ptr); cdecl;
-var
- Idx: Integer;
- dest: glBitmap_libJPEG_dest_mgr_ptr;
-begin
- dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
-
- for Idx := Low(dest^.DestBuffer) to High(dest^.DestBuffer) do begin
- // check for endblock
- if (Idx < High(dest^.DestBuffer)) and (dest^.DestBuffer[Idx] = $FF) and (dest^.DestBuffer[Idx +1] = JPEG_EOI) then begin
- // write endblock
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 2);
-
- // leave
- break;
- end else
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 1);
- end;
-end;
-{$ENDIF}
-
-{$IFDEF GLB_SUPPORT_JPEG_READ}
-{$IF DEFINED(GLB_LAZ_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
-const
- MAGIC_LEN = 2;
- JPEG_MAGIC: String[MAGIC_LEN] = #$FF#$D8;
-var
- intf: TLazIntfImage;
- reader: TFPReaderJPEG;
- StreamPos: Int64;
- magic: String[MAGIC_LEN];
-begin
- result := true;
- StreamPos := aStream.Position;
-
- SetLength(magic, MAGIC_LEN);
- aStream.Read(magic[1], MAGIC_LEN);
- aStream.Position := StreamPos;
- if (magic <> JPEG_MAGIC) then begin
- result := false;
- exit;
- end;
-
- reader := TFPReaderJPEG.Create;
- intf := TLazIntfImage.Create(0, 0);
- try try
- intf.DataDescription := GetDescriptionFromDevice(0, 0, 0);
- reader.ImageRead(aStream, intf);
- AssignFromLazIntfImage(intf);
- except
- result := false;
- aStream.Position := StreamPos;
- exit;
- end;
- finally
- reader.Free;
- intf.Free;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
-var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
-begin
- result := false;
-
- RWops := glBitmapCreateRWops(aStream);
- try
- if IMG_isJPG(RWops) > 0 then begin
- Surface := IMG_LoadJPG_RW(RWops);
- try
- AssignFromSurface(Surface);
- result := true;
- finally
- SDL_FreeSurface(Surface);
- end;
- end;
- finally
- SDL_FreeRW(RWops);
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_LIB_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
-var
- StreamPos: Int64;
- Temp: array[0..1]of Byte;
-
- jpeg: jpeg_decompress_struct;
- jpeg_err: jpeg_error_mgr;
-
- IntFormat: TglBitmapFormat;
- pImage: pByte;
- TempHeight, TempWidth: Integer;
-
- pTemp: pByte;
- Row: Integer;
-
- FormatDesc: TFormatDescriptor;
-begin
- result := false;
-
- if not init_libJPEG then
- raise Exception.Create('LoadJPG - unable to initialize libJPEG.');
-
- try
- // reading first two bytes to test file and set cursor back to begin
- StreamPos := aStream.Position;
- aStream.Read({%H-}Temp[0], 2);
- aStream.Position := StreamPos;
-
- // if Bitmap then read file.
- if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
- FillChar(jpeg{%H-}, SizeOf(jpeg_decompress_struct), $00);
- FillChar(jpeg_err{%H-}, SizeOf(jpeg_error_mgr), $00);
-
- // error managment
- jpeg.err := jpeg_std_error(@jpeg_err);
- jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
- jpeg_err.output_message := glBitmap_libJPEG_output_message;
-
- // decompression struct
- jpeg_create_decompress(@jpeg);
-
- // allocation space for streaming methods
- jpeg.src := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_source_mgr));
-
- // seeting up custom functions
- with glBitmap_libJPEG_source_mgr_ptr(jpeg.src)^ do begin
- pub.init_source := glBitmap_libJPEG_init_source;
- pub.fill_input_buffer := glBitmap_libJPEG_fill_input_buffer;
- pub.skip_input_data := glBitmap_libJPEG_skip_input_data;
- pub.resync_to_restart := jpeg_resync_to_restart; // use default method
- pub.term_source := glBitmap_libJPEG_term_source;
-
- pub.bytes_in_buffer := 0; // forces fill_input_buffer on first read
- pub.next_input_byte := nil; // until buffer loaded
-
- SrcStream := aStream;
- end;
-
- // set global decoding state
- jpeg.global_state := DSTATE_START;
-
- // read header of jpeg
- jpeg_read_header(@jpeg, false);
-
- // setting output parameter
- case jpeg.jpeg_color_space of
- JCS_GRAYSCALE:
- begin
- jpeg.out_color_space := JCS_GRAYSCALE;
- IntFormat := tfLuminance8;
- end;
- else
- jpeg.out_color_space := JCS_RGB;
- IntFormat := tfRGB8;
- end;
-
- // reading image
- jpeg_start_decompress(@jpeg);
-
- TempHeight := jpeg.output_height;
- TempWidth := jpeg.output_width;
-
- FormatDesc := TFormatDescriptor.Get(IntFormat);
-
- // creating new image
- GetMem(pImage, FormatDesc.GetSize(TempWidth, TempHeight));
- try
- pTemp := pImage;
-
- for Row := 0 to TempHeight -1 do begin
- jpeg_read_scanlines(@jpeg, @pTemp, 1);
- Inc(pTemp, FormatDesc.GetSize(TempWidth, 1));
- end;
-
- // finish decompression
- jpeg_finish_decompress(@jpeg);
-
- // destroy decompression
- jpeg_destroy_decompress(@jpeg);
-
- SetDataPointer(pImage, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
-
- result := true;
- except
- if Assigned(pImage) then
- FreeMem(pImage);
- raise;
- end;
- end;
- finally
- quit_libJPEG;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
-var
- bmp: TBitmap;
- jpg: TJPEGImage;
- StreamPos: Int64;
- Temp: array[0..1]of Byte;
-begin
- result := false;
-
- // reading first two bytes to test file and set cursor back to begin
- StreamPos := aStream.Position;
- aStream.Read(Temp[0], 2);
- aStream.Position := StreamPos;
-
- // if Bitmap then read file.
- if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
- bmp := TBitmap.Create;
- try
- jpg := TJPEGImage.Create;
- try
- jpg.LoadFromStream(aStream);
- bmp.Assign(jpg);
- result := AssignFromBitmap(bmp);
- finally
- jpg.Free;
- end;
- finally
- bmp.Free;
- end;
- end;
-end;
-{$IFEND}
-{$ENDIF}
-
-{$IFDEF GLB_SUPPORT_JPEG_WRITE}
-{$IF DEFINED(GLB_LAZ_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
-var
- jpeg: TJPEGImage;
- intf: TLazIntfImage;
- raw: TRawImage;
-begin
- jpeg := TJPEGImage.Create;
- intf := TLazIntfImage.Create(0, 0);
- try
- if not AssignToLazIntfImage(intf) then
- raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
- intf.GetRawImage(raw);
- jpeg.LoadFromRawImage(raw, false);
- jpeg.SaveToStream(aStream);
- finally
- intf.Free;
- jpeg.Free;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_LIB_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
-var
- jpeg: jpeg_compress_struct;
- jpeg_err: jpeg_error_mgr;
- Row: Integer;
- pTemp, pTemp2: pByte;
-
- procedure CopyRow(pDest, pSource: pByte);
- var
- X: Integer;
- begin
- for X := 0 to Width - 1 do begin
- pByteArray(pDest)^[0] := pByteArray(pSource)^[2];
- pByteArray(pDest)^[1] := pByteArray(pSource)^[1];
- pByteArray(pDest)^[2] := pByteArray(pSource)^[0];
- Inc(pDest, 3);
- Inc(pSource, 3);
- end;
- end;
-
-begin
- if not (ftJPEG in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- if not init_libJPEG then
- raise Exception.Create('SaveJPG - unable to initialize libJPEG.');
-
- try
- FillChar(jpeg{%H-}, SizeOf(jpeg_compress_struct), $00);
- FillChar(jpeg_err{%H-}, SizeOf(jpeg_error_mgr), $00);
-
- // error managment
- jpeg.err := jpeg_std_error(@jpeg_err);
- jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
- jpeg_err.output_message := glBitmap_libJPEG_output_message;
-
- // compression struct
- jpeg_create_compress(@jpeg);
-
- // allocation space for streaming methods
- jpeg.dest := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_dest_mgr));
-
- // seeting up custom functions
- with glBitmap_libJPEG_dest_mgr_ptr(jpeg.dest)^ do begin
- pub.init_destination := glBitmap_libJPEG_init_destination;
- pub.empty_output_buffer := glBitmap_libJPEG_empty_output_buffer;
- pub.term_destination := glBitmap_libJPEG_term_destination;
-
- pub.next_output_byte := @DestBuffer[1];
- pub.free_in_buffer := Length(DestBuffer);
-
- DestStream := aStream;
- end;
-
- // very important state
- jpeg.global_state := CSTATE_START;
- jpeg.image_width := Width;
- jpeg.image_height := Height;
- case Format of
- tfAlpha8, tfLuminance8: begin
- jpeg.input_components := 1;
- jpeg.in_color_space := JCS_GRAYSCALE;
- end;
- tfRGB8, tfBGR8: begin
- jpeg.input_components := 3;
- jpeg.in_color_space := JCS_RGB;
- end;
- end;
-
- jpeg_set_defaults(@jpeg);
- jpeg_set_quality(@jpeg, 95, true);
- jpeg_start_compress(@jpeg, true);
- pTemp := Data;
-
- if Format = tfBGR8 then
- GetMem(pTemp2, fRowSize)
- else
- pTemp2 := pTemp;
-
- try
- for Row := 0 to jpeg.image_height -1 do begin
- // prepare row
- if Format = tfBGR8 then
- CopyRow(pTemp2, pTemp)
- else
- pTemp2 := pTemp;
-
- // write row
- jpeg_write_scanlines(@jpeg, @pTemp2, 1);
- inc(pTemp, fRowSize);
- end;
- finally
- // free memory
- if Format = tfBGR8 then
- FreeMem(pTemp2);
- end;
- jpeg_finish_compress(@jpeg);
- jpeg_destroy_compress(@jpeg);
- finally
- quit_libJPEG;
- end;
-end;
-
-{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
-var
- Bmp: TBitmap;
- Jpg: TJPEGImage;
-begin
- if not (ftJPEG in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- Bmp := TBitmap.Create;
- try
- Jpg := TJPEGImage.Create;
- try
- AssignToBitmap(Bmp);
- if (Format in [tfAlpha8, tfLuminance8]) then begin
- Jpg.Grayscale := true;
- Jpg.PixelFormat := jf8Bit;
- end;
- Jpg.Assign(Bmp);
- Jpg.SaveToStream(aStream);
- finally
- FreeAndNil(Jpg);
- end;
- finally
- FreeAndNil(Bmp);
- end;
-end;
-{$IFEND}
-{$ENDIF}
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//BMP/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-const
- BMP_MAGIC = $4D42;
-
- BMP_COMP_RGB = 0;
- BMP_COMP_RLE8 = 1;
- BMP_COMP_RLE4 = 2;
- BMP_COMP_BITFIELDS = 3;
-
-type
- TBMPHeader = packed record
- bfType: Word;
- bfSize: Cardinal;
- bfReserved1: Word;
- bfReserved2: Word;
- bfOffBits: Cardinal;
- end;
-
- TBMPInfo = packed record
- biSize: Cardinal;
- biWidth: Longint;
- biHeight: Longint;
- biPlanes: Word;
- biBitCount: Word;
- biCompression: Cardinal;
- biSizeImage: Cardinal;
- biXPelsPerMeter: Longint;
- biYPelsPerMeter: Longint;
- biClrUsed: Cardinal;
- biClrImportant: Cardinal;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadBMP(const aStream: TStream): Boolean;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function ReadInfo(out aInfo: TBMPInfo; out aMask: TglBitmapColorRec): TglBitmapFormat;
- begin
- result := tfEmpty;
- aStream.Read(aInfo{%H-}, SizeOf(aInfo));
- FillChar(aMask{%H-}, SizeOf(aMask), 0);
-
- //Read Compression
- case aInfo.biCompression of
- BMP_COMP_RLE4,
- BMP_COMP_RLE8: begin
- raise EglBitmap.Create('RLE compression is not supported');
- end;
- BMP_COMP_BITFIELDS: begin
- if (aInfo.biBitCount = 16) or (aInfo.biBitCount = 32) then begin
- aStream.Read(aMask.r, SizeOf(aMask.r));
- aStream.Read(aMask.g, SizeOf(aMask.g));
- aStream.Read(aMask.b, SizeOf(aMask.b));
- aStream.Read(aMask.a, SizeOf(aMask.a));
- end else
- raise EglBitmap.Create('Bitfields are only supported for 16bit and 32bit formats');
- end;
- end;
-
- //get suitable format
- case aInfo.biBitCount of
- 8: result := tfLuminance8;
- 16: result := tfBGR5;
- 24: result := tfBGR8;
- 32: result := tfBGRA8;
- end;
- end;
-
- function ReadColorTable(var aFormat: TglBitmapFormat; const aInfo: TBMPInfo): TbmpColorTableFormat;
- var
- i, c: Integer;
- ColorTable: TbmpColorTable;
- begin
- result := nil;
- if (aInfo.biBitCount >= 16) then
- exit;
- aFormat := tfLuminance8;
- c := aInfo.biClrUsed;
- if (c = 0) then
- c := 1 shl aInfo.biBitCount;
- SetLength(ColorTable, c);
- for i := 0 to c-1 do begin
- aStream.Read(ColorTable[i], SizeOf(TbmpColorTableEnty));
- if (ColorTable[i].r <> ColorTable[i].g) or (ColorTable[i].g <> ColorTable[i].b) then
- aFormat := tfRGB8;
- end;
-
- result := TbmpColorTableFormat.Create;
- result.PixelSize := aInfo.biBitCount / 8;
- result.ColorTable := ColorTable;
- result.Range := glBitmapColorRec($FF, $FF, $FF, $00);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function CheckBitfields(var aFormat: TglBitmapFormat; const aMask: TglBitmapColorRec;
- const aInfo: TBMPInfo): TbmpBitfieldFormat;
- var
- TmpFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- begin
- result := nil;
- if (aMask.r <> 0) or (aMask.g <> 0) or (aMask.b <> 0) or (aMask.a <> 0) then begin
- for TmpFormat := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- FormatDesc := TFormatDescriptor.Get(TmpFormat);
- if FormatDesc.MaskMatch(aMask.r, aMask.g, aMask.b, aMask.a) then begin
- aFormat := FormatDesc.Format;
- exit;
- end;
- end;
-
- if (aMask.a = 0) and TFormatDescriptor.Get(aFormat).HasAlpha then
- aFormat := TFormatDescriptor.Get(aFormat).WithoutAlpha;
- if (aMask.a <> 0) and not TFormatDescriptor.Get(aFormat).HasAlpha then
- aFormat := TFormatDescriptor.Get(aFormat).WithAlpha;
-
- result := TbmpBitfieldFormat.Create;
- result.PixelSize := aInfo.biBitCount / 8;
- result.RedMask := aMask.r;
- result.GreenMask := aMask.g;
- result.BlueMask := aMask.b;
- result.AlphaMask := aMask.a;
- end;
- end;
-
-var
- //simple types
- StartPos: Int64;
- ImageSize, rbLineSize, wbLineSize, Padding, i: Integer;
- PaddingBuff: Cardinal;
- LineBuf, ImageData, TmpData: PByte;
- SourceMD, DestMD: Pointer;
- BmpFormat: TglBitmapFormat;
-
- //records
- Mask: TglBitmapColorRec;
- Header: TBMPHeader;
- Info: TBMPInfo;
-
- //classes
- SpecialFormat: TFormatDescriptor;
- FormatDesc: TFormatDescriptor;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- procedure SpecialFormatReadLine(aData: PByte; aLineBuf: PByte);
- var
- i: Integer;
- Pixel: TglBitmapPixelData;
- begin
- aStream.Read(aLineBuf^, rbLineSize);
- SpecialFormat.PreparePixel(Pixel);
- for i := 0 to Info.biWidth-1 do begin
- SpecialFormat.Unmap(aLineBuf, Pixel, SourceMD);
- glBitmapConvertPixel(Pixel, SpecialFormat, FormatDesc);
- FormatDesc.Map(Pixel, aData, DestMD);
- end;
- end;
-
-begin
- result := false;
- BmpFormat := tfEmpty;
- SpecialFormat := nil;
- LineBuf := nil;
- SourceMD := nil;
- DestMD := nil;
-
- // Header
- StartPos := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
-
- if Header.bfType = BMP_MAGIC then begin
- try try
- BmpFormat := ReadInfo(Info, Mask);
- SpecialFormat := ReadColorTable(BmpFormat, Info);
- if not Assigned(SpecialFormat) then
- SpecialFormat := CheckBitfields(BmpFormat, Mask, Info);
- aStream.Position := StartPos + Header.bfOffBits;
-
- if (BmpFormat <> tfEmpty) then begin
- FormatDesc := TFormatDescriptor.Get(BmpFormat);
- rbLineSize := Round(Info.biWidth * Info.biBitCount / 8); //ReadBuffer LineSize
- wbLineSize := Trunc(Info.biWidth * FormatDesc.PixelSize);
- Padding := (((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3) - rbLineSize;
-
- //get Memory
- DestMD := FormatDesc.CreateMappingData;
- ImageSize := FormatDesc.GetSize(Info.biWidth, abs(Info.biHeight));
- GetMem(ImageData, ImageSize);
- if Assigned(SpecialFormat) then begin
- GetMem(LineBuf, rbLineSize); //tmp Memory for converting Bitfields
- SourceMD := SpecialFormat.CreateMappingData;
- end;
-
- //read Data
- try try
- FillChar(ImageData^, ImageSize, $FF);
- TmpData := ImageData;
- if (Info.biHeight > 0) then
- Inc(TmpData, wbLineSize * (Info.biHeight-1));
- for i := 0 to Abs(Info.biHeight)-1 do begin
- if Assigned(SpecialFormat) then
- SpecialFormatReadLine(TmpData, LineBuf) //if is special format read and convert data
- else
- aStream.Read(TmpData^, wbLineSize); //else only read data
- if (Info.biHeight > 0) then
- dec(TmpData, wbLineSize)
- else
- inc(TmpData, wbLineSize);
- aStream.Read(PaddingBuff{%H-}, Padding);
- end;
- SetDataPointer(ImageData, BmpFormat, Info.biWidth, abs(Info.biHeight)); //be careful, Data could be freed by this method
- result := true;
- finally
- if Assigned(LineBuf) then
- FreeMem(LineBuf);
- if Assigned(SourceMD) then
- SpecialFormat.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- end;
- except
- if Assigned(ImageData) then
- FreeMem(ImageData);
- raise;
- end;
- end else
- raise EglBitmap.Create('LoadBMP - No suitable format found');
- except
- aStream.Position := StartPos;
- raise;
- end;
- finally
- FreeAndNil(SpecialFormat);
- end;
- end
- else aStream.Position := StartPos;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveBMP(const aStream: TStream);
-var
- Header: TBMPHeader;
- Info: TBMPInfo;
- Converter: TFormatDescriptor;
- FormatDesc: TFormatDescriptor;
- SourceFD, DestFD: Pointer;
- pData, srcData, dstData, ConvertBuffer: pByte;
-
- Pixel: TglBitmapPixelData;
- ImageSize, wbLineSize, rbLineSize, Padding, LineIdx, PixelIdx: Integer;
- RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
-
- PaddingBuff: Cardinal;
-
- function GetLineWidth : Integer;
- begin
- result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
- end;
-
-begin
- if not (ftBMP in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- Converter := nil;
- FormatDesc := TFormatDescriptor.Get(Format);
- ImageSize := FormatDesc.GetSize(Dimension);
-
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.bfType := BMP_MAGIC;
- Header.bfSize := SizeOf(Header) + SizeOf(Info) + ImageSize;
- Header.bfReserved1 := 0;
- Header.bfReserved2 := 0;
- Header.bfOffBits := SizeOf(Header) + SizeOf(Info);
-
- FillChar(Info{%H-}, SizeOf(Info), 0);
- Info.biSize := SizeOf(Info);
- Info.biWidth := Width;
- Info.biHeight := Height;
- Info.biPlanes := 1;
- Info.biCompression := BMP_COMP_RGB;
- Info.biSizeImage := ImageSize;
-
- try
- case Format of
- tfLuminance4: begin
- Info.biBitCount := 4;
- Header.bfSize := Header.bfSize + 16 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 16 * SizeOf(Cardinal); //16 ColorTable entries
- Converter := TbmpColorTableFormat.Create;
- with (Converter as TbmpColorTableFormat) do begin
- PixelSize := 0.5;
- Format := Format;
- Range := glBitmapColorRec($F, $F, $F, $0);
- CreateColorTable;
- end;
- end;
-
- tfR3G3B2, tfLuminance8: begin
- Info.biBitCount := 8;
- Header.bfSize := Header.bfSize + 256 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 256 * SizeOf(Cardinal); //256 ColorTable entries
- Converter := TbmpColorTableFormat.Create;
- with (Converter as TbmpColorTableFormat) do begin
- PixelSize := 1;
- Format := Format;
- if (Format = tfR3G3B2) then begin
- Range := glBitmapColorRec($7, $7, $3, $0);
- Shift := glBitmapShiftRec(0, 3, 6, 0);
- end else
- Range := glBitmapColorRec($FF, $FF, $FF, $0);
- CreateColorTable;
- end;
- end;
-
- tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
- tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4: begin
- Info.biBitCount := 16;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
-
- tfBGR8, tfRGB8: begin
- Info.biBitCount := 24;
- if (Format = tfRGB8) then
- Converter := TfdBGR8.Create; //use BGR8 Format Descriptor to Swap RGB Values
- end;
-
- tfRGB10, tfRGB10A2, tfRGBA8,
- tfBGR10, tfBGR10A2, tfBGRA8: begin
- Info.biBitCount := 32;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
- Info.biXPelsPerMeter := 2835;
- Info.biYPelsPerMeter := 2835;
-
- // prepare bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
-
- RedMask := FormatDesc.RedMask;
- GreenMask := FormatDesc.GreenMask;
- BlueMask := FormatDesc.BlueMask;
- AlphaMask := FormatDesc.AlphaMask;
- end;
-
- // headers
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Info, SizeOf(Info));
-
- // colortable
- if Assigned(Converter) and (Converter is TbmpColorTableFormat) then
- with (Converter as TbmpColorTableFormat) do
- aStream.Write(ColorTable[0].b,
- SizeOf(TbmpColorTableEnty) * Length(ColorTable));
-
- // bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- aStream.Write(RedMask, SizeOf(Cardinal));
- aStream.Write(GreenMask, SizeOf(Cardinal));
- aStream.Write(BlueMask, SizeOf(Cardinal));
- aStream.Write(AlphaMask, SizeOf(Cardinal));
- end;
-
- // image data
- rbLineSize := Round(Info.biWidth * FormatDesc.PixelSize);
- wbLineSize := Round(Info.biWidth * Info.biBitCount / 8);
- Padding := GetLineWidth - wbLineSize;
- PaddingBuff := 0;
-
- pData := Data;
- inc(pData, (Height-1) * rbLineSize);
-
- // prepare row buffer. But only for RGB because RGBA supports color masks
- // so it's possible to change color within the image.
- if Assigned(Converter) then begin
- FormatDesc.PreparePixel(Pixel);
- GetMem(ConvertBuffer, wbLineSize);
- SourceFD := FormatDesc.CreateMappingData;
- DestFD := Converter.CreateMappingData;
- end else
- ConvertBuffer := nil;
-
- try
- for LineIdx := 0 to Height - 1 do begin
- // preparing row
- if Assigned(Converter) then begin
- srcData := pData;
- dstData := ConvertBuffer;
- for PixelIdx := 0 to Info.biWidth-1 do begin
- FormatDesc.Unmap(srcData, Pixel, SourceFD);
- glBitmapConvertPixel(Pixel, FormatDesc, Converter);
- Converter.Map(Pixel, dstData, DestFD);
- end;
- aStream.Write(ConvertBuffer^, wbLineSize);
- end else begin
- aStream.Write(pData^, rbLineSize);
- end;
- dec(pData, rbLineSize);
- if (Padding > 0) then
- aStream.Write(PaddingBuff, Padding);
- end;
- finally
- // destroy row buffer
- if Assigned(ConvertBuffer) then begin
- FormatDesc.FreeMappingData(SourceFD);
- Converter.FreeMappingData(DestFD);
- FreeMem(ConvertBuffer);
- end;
- end;
- finally
- if Assigned(Converter) then
- Converter.Free;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TGA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-type
- TTGAHeader = packed record
- ImageID: Byte;
- ColorMapType: Byte;
- ImageType: Byte;
- //ColorMapSpec: Array[0..4] of Byte;
- ColorMapStart: Word;
- ColorMapLength: Word;
- ColorMapEntrySize: Byte;
- OrigX: Word;
- OrigY: Word;
- Width: Word;
- Height: Word;
- Bpp: Byte;
- ImageDesc: Byte;
- end;
-
-const
- TGA_UNCOMPRESSED_RGB = 2;
- TGA_UNCOMPRESSED_GRAY = 3;
- TGA_COMPRESSED_RGB = 10;
- TGA_COMPRESSED_GRAY = 11;
-
- TGA_NONE_COLOR_TABLE = 0;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadTGA(const aStream: TStream): Boolean;
-var
- Header: TTGAHeader;
- ImageData: System.PByte;
- StartPosition: Int64;
- PixelSize, LineSize: Integer;
- tgaFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- Counter: packed record
- X, Y: packed record
- low, high, dir: Integer;
- end;
- end;
-
-const
- CACHE_SIZE = $4000;
-
- ////////////////////////////////////////////////////////////////////////////////////////
- procedure ReadUncompressed;
- var
- i, j: Integer;
- buf, tmp1, tmp2: System.PByte;
- begin
- buf := nil;
- if (Counter.X.dir < 0) then
- GetMem(buf, LineSize);
- try
- while (Counter.Y.low <> Counter.Y.high + counter.Y.dir) do begin
- tmp1 := ImageData;
- inc(tmp1, (Counter.Y.low * LineSize)); //pointer to LineStart
- if (Counter.X.dir < 0) then begin //flip X
- aStream.Read(buf^, LineSize);
- tmp2 := buf;
- inc(tmp2, LineSize - PixelSize); //pointer to last pixel in line
- for i := 0 to Header.Width-1 do begin //for all pixels in line
- for j := 0 to PixelSize-1 do begin //for all bytes in pixel
- tmp1^ := tmp2^;
- inc(tmp1);
- inc(tmp2);
- end;
- dec(tmp2, 2*PixelSize); //move 2 backwards, because j-loop moved 1 forward
- end;
- end else
- aStream.Read(tmp1^, LineSize);
- inc(Counter.Y.low, Counter.Y.dir); //move to next line index
- end;
- finally
- if Assigned(buf) then
- FreeMem(buf);
- end;
- end;
-
- ////////////////////////////////////////////////////////////////////////////////////////
- procedure ReadCompressed;
-
- /////////////////////////////////////////////////////////////////
- var
- TmpData: System.PByte;
- LinePixelsRead: Integer;
- procedure CheckLine;
- begin
- if (LinePixelsRead >= Header.Width) then begin
- LinePixelsRead := 0;
- inc(Counter.Y.low, Counter.Y.dir); //next line index
- TmpData := ImageData;
- inc(TmpData, Counter.Y.low * LineSize); //set line
- if (Counter.X.dir < 0) then //if x flipped then
- inc(TmpData, LineSize - PixelSize); //set last pixel
- end;
- end;
-
- /////////////////////////////////////////////////////////////////
- var
- Cache: PByte;
- CacheSize, CachePos: Integer;
- procedure CachedRead(out Buffer; Count: Integer);
- var
- BytesRead: Integer;
- begin
- if (CachePos + Count > CacheSize) then begin
- //if buffer overflow save non read bytes
- BytesRead := 0;
- if (CacheSize - CachePos > 0) then begin
- BytesRead := CacheSize - CachePos;
- Move(PByteArray(Cache)^[CachePos], Buffer{%H-}, BytesRead);
- inc(CachePos, BytesRead);
- end;
-
- //load cache from file
- CacheSize := Min(CACHE_SIZE, aStream.Size - aStream.Position);
- aStream.Read(Cache^, CacheSize);
- CachePos := 0;
-
- //read rest of requested bytes
- if (Count - BytesRead > 0) then begin
- Move(PByteArray(Cache)^[CachePos], TByteArray(Buffer)[BytesRead], Count - BytesRead);
- inc(CachePos, Count - BytesRead);
- end;
- end else begin
- //if no buffer overflow just read the data
- Move(PByteArray(Cache)^[CachePos], Buffer, Count);
- inc(CachePos, Count);
- end;
- end;
-
- procedure PixelToBuffer(const aData: PByte; var aBuffer: PByte);
- begin
- case PixelSize of
- 1: begin
- aBuffer^ := aData^;
- inc(aBuffer, Counter.X.dir);
- end;
- 2: begin
- PWord(aBuffer)^ := PWord(aData)^;
- inc(aBuffer, 2 * Counter.X.dir);
- end;
- 3: begin
- PByteArray(aBuffer)^[0] := PByteArray(aData)^[0];
- PByteArray(aBuffer)^[1] := PByteArray(aData)^[1];
- PByteArray(aBuffer)^[2] := PByteArray(aData)^[2];
- inc(aBuffer, 3 * Counter.X.dir);
- end;
- 4: begin
- PCardinal(aBuffer)^ := PCardinal(aData)^;
- inc(aBuffer, 4 * Counter.X.dir);
- end;
- end;
- end;
-
- var
- TotalPixelsToRead, TotalPixelsRead: Integer;
- Temp: Byte;
- buf: array [0..3] of Byte; //1 pixel is max 32bit long
- PixelRepeat: Boolean;
- PixelsToRead, PixelCount: Integer;
- begin
- CacheSize := 0;
- CachePos := 0;
-
- TotalPixelsToRead := Header.Width * Header.Height;
- TotalPixelsRead := 0;
- LinePixelsRead := 0;
-
- GetMem(Cache, CACHE_SIZE);
- try
- TmpData := ImageData;
- inc(TmpData, Counter.Y.low * LineSize); //set line
- if (Counter.X.dir < 0) then //if x flipped then
- inc(TmpData, LineSize - PixelSize); //set last pixel
-
- repeat
- //read CommandByte
- CachedRead(Temp, 1);
- PixelRepeat := (Temp and $80) > 0;
- PixelsToRead := (Temp and $7F) + 1;
- inc(TotalPixelsRead, PixelsToRead);
-
- if PixelRepeat then
- CachedRead(buf[0], PixelSize);
- while (PixelsToRead > 0) do begin
- CheckLine;
- PixelCount := Min(Header.Width - LinePixelsRead, PixelsToRead); //max read to EOL or EOF
- while (PixelCount > 0) do begin
- if not PixelRepeat then
- CachedRead(buf[0], PixelSize);
- PixelToBuffer(@buf[0], TmpData);
- inc(LinePixelsRead);
- dec(PixelsToRead);
- dec(PixelCount);
- end;
- end;
- until (TotalPixelsRead >= TotalPixelsToRead);
- finally
- FreeMem(Cache);
- end;
- end;
-
- function IsGrayFormat: Boolean;
- begin
- result := Header.ImageType in [TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_GRAY];
- end;
-
-begin
- result := false;
-
- // reading header to test file and set cursor back to begin
- StartPosition := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
-
- // no colormapped files
- if (Header.ColorMapType = TGA_NONE_COLOR_TABLE) and (Header.ImageType in [
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY]) then
- begin
- try
- if Header.ImageID <> 0 then // skip image ID
- aStream.Position := aStream.Position + Header.ImageID;
-
- tgaFormat := tfEmpty;
- case Header.Bpp of
- 8: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance8;
- 8: tgaFormat := tfAlpha8;
- end;
-
- 16: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance16;
- 8: tgaFormat := tfLuminance8Alpha8;
- end else case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfBGR5;
- 1: tgaFormat := tfBGR5A1;
- 4: tgaFormat := tfBGRA4;
- end;
-
- 24: if not IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfBGR8;
- end;
-
- 32: if not IsGrayFormat then case (Header.ImageDesc and $F) of
- 2: tgaFormat := tfBGR10A2;
- 8: tgaFormat := tfBGRA8;
- end;
- end;
-
- if (tgaFormat = tfEmpty) then
- raise EglBitmap.Create('LoadTga - unsupported format');
-
- FormatDesc := TFormatDescriptor.Get(tgaFormat);
- PixelSize := FormatDesc.GetSize(1, 1);
- LineSize := FormatDesc.GetSize(Header.Width, 1);
-
- GetMem(ImageData, LineSize * Header.Height);
- try
- //column direction
- if ((Header.ImageDesc and (1 shl 4)) > 0) then begin
- Counter.X.low := Header.Height-1;;
- Counter.X.high := 0;
- Counter.X.dir := -1;
- end else begin
- Counter.X.low := 0;
- Counter.X.high := Header.Height-1;
- Counter.X.dir := 1;
- end;
-
- // Row direction
- if ((Header.ImageDesc and (1 shl 5)) > 0) then begin
- Counter.Y.low := 0;
- Counter.Y.high := Header.Height-1;
- Counter.Y.dir := 1;
- end else begin
- Counter.Y.low := Header.Height-1;;
- Counter.Y.high := 0;
- Counter.Y.dir := -1;
- end;
-
- // Read Image
- case Header.ImageType of
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
- ReadUncompressed;
- TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
- ReadCompressed;
- end;
-
- SetDataPointer(ImageData, tgaFormat, Header.Width, Header.Height); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(ImageData) then
- FreeMem(ImageData);
- raise;
- end;
- finally
- aStream.Position := StartPosition;
- end;
- end
- else aStream.Position := StartPosition;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveTGA(const aStream: TStream);
-var
- Header: TTGAHeader;
- LineSize, Size, x, y: Integer;
- Pixel: TglBitmapPixelData;
- LineBuf, SourceData, DestData: PByte;
- SourceMD, DestMD: Pointer;
- FormatDesc: TFormatDescriptor;
- Converter: TFormatDescriptor;
-begin
- if not (ftTGA in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- //prepare header
- FillChar(Header{%H-}, SizeOf(Header), 0);
-
- //set ImageType
- if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8,
- tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8]) then
- Header.ImageType := TGA_UNCOMPRESSED_GRAY
- else
- Header.ImageType := TGA_UNCOMPRESSED_RGB;
-
- //set BitsPerPixel
- if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8]) then
- Header.Bpp := 8
- else if (Format in [tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8,
- tfRGB5, tfBGR5, tfRGB5A1, tfBGR5A1, tfRGBA4, tfBGRA4]) then
- Header.Bpp := 16
- else if (Format in [tfBGR8, tfRGB8]) then
- Header.Bpp := 24
- else
- Header.Bpp := 32;
-
- //set AlphaBitCount
- case Format of
- tfRGB5A1, tfBGR5A1:
- Header.ImageDesc := 1 and $F;
- tfRGB10A2, tfBGR10A2:
- Header.ImageDesc := 2 and $F;
- tfRGBA4, tfBGRA4:
- Header.ImageDesc := 4 and $F;
- tfAlpha8, tfLuminance8Alpha8, tfRGBA8, tfBGRA8:
- Header.ImageDesc := 8 and $F;
- end;
-
- Header.Width := Width;
- Header.Height := Height;
- Header.ImageDesc := Header.ImageDesc or $20; //flip y
- aStream.Write(Header, SizeOf(Header));
-
- // convert RGB(A) to BGR(A)
- Converter := nil;
- FormatDesc := TFormatDescriptor.Get(Format);
- Size := FormatDesc.GetSize(Dimension);
- if Format in [tfRGB5, tfRGB5A1, tfRGBA4, tfRGB8, tfRGB10A2, tfRGBA8] then begin
- if (FormatDesc.RGBInverted = tfEmpty) then
- raise EglBitmap.Create('inverted RGB format is empty');
- Converter := TFormatDescriptor.Get(FormatDesc.RGBInverted);
- if not glBitmapColorRecCmp(Converter.Range, FormatDesc.Range) or
- (Converter.PixelSize <> FormatDesc.PixelSize) then
- raise EglBitmap.Create('invalid inverted RGB format');
- end;
-
- if Assigned(Converter) then begin
- LineSize := FormatDesc.GetSize(Width, 1);
- GetMem(LineBuf, LineSize);
- SourceMD := FormatDesc.CreateMappingData;
- DestMD := Converter.CreateMappingData;
- try
- SourceData := Data;
- for y := 0 to Height-1 do begin
- DestData := LineBuf;
- for x := 0 to Width-1 do begin
- FormatDesc.Unmap(SourceData, Pixel, SourceMD);
- Converter.Map(Pixel, DestData, DestMD);
- end;
- aStream.Write(LineBuf^, LineSize);
- end;
- finally
- FreeMem(LineBuf);
- FormatDesc.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- end;
- end else
- aStream.Write(Data^, Size);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//DDS/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-const
- DDS_MAGIC: Cardinal = $20534444;
-
- // DDS_header.dwFlags
- DDSD_CAPS = $00000001;
- DDSD_HEIGHT = $00000002;
- DDSD_WIDTH = $00000004;
- DDSD_PIXELFORMAT = $00001000;
-
- // DDS_header.sPixelFormat.dwFlags
- DDPF_ALPHAPIXELS = $00000001;
- DDPF_ALPHA = $00000002;
- DDPF_FOURCC = $00000004;
- DDPF_RGB = $00000040;
- DDPF_LUMINANCE = $00020000;
-
- // DDS_header.sCaps.dwCaps1
- DDSCAPS_TEXTURE = $00001000;
-
- // DDS_header.sCaps.dwCaps2
- DDSCAPS2_CUBEMAP = $00000200;
-
- D3DFMT_DXT1 = $31545844;
- D3DFMT_DXT3 = $33545844;
- D3DFMT_DXT5 = $35545844;
-
-type
- TDDSPixelFormat = packed record
- dwSize: Cardinal;
- dwFlags: Cardinal;
- dwFourCC: Cardinal;
- dwRGBBitCount: Cardinal;
- dwRBitMask: Cardinal;
- dwGBitMask: Cardinal;
- dwBBitMask: Cardinal;
- dwABitMask: Cardinal;
- end;
-
- TDDSCaps = packed record
- dwCaps1: Cardinal;
- dwCaps2: Cardinal;
- dwDDSX: Cardinal;
- dwReserved: Cardinal;
- end;
-
- TDDSHeader = packed record
- dwSize: Cardinal;
- dwFlags: Cardinal;
- dwHeight: Cardinal;
- dwWidth: Cardinal;
- dwPitchOrLinearSize: Cardinal;
- dwDepth: Cardinal;
- dwMipMapCount: Cardinal;
- dwReserved: array[0..10] of Cardinal;
- PixelFormat: TDDSPixelFormat;
- Caps: TDDSCaps;
- dwReserved2: Cardinal;
- end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadDDS(const aStream: TStream): Boolean;
-var
- Header: TDDSHeader;
- Converter: TbmpBitfieldFormat;
-
- function GetDDSFormat: TglBitmapFormat;
- var
- fd: TFormatDescriptor;
- i: Integer;
- Range: TglBitmapColorRec;
- match: Boolean;
- begin
- result := tfEmpty;
- with Header.PixelFormat do begin
- // Compresses
- if ((dwFlags and DDPF_FOURCC) > 0) then begin
- case Header.PixelFormat.dwFourCC of
- D3DFMT_DXT1: result := tfS3tcDtx1RGBA;
- D3DFMT_DXT3: result := tfS3tcDtx3RGBA;
- D3DFMT_DXT5: result := tfS3tcDtx5RGBA;
- end;
- end else if ((Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0) then begin
-
- //find matching format
- for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- fd := TFormatDescriptor.Get(result);
- if fd.MaskMatch(dwRBitMask, dwGBitMask, dwBBitMask, dwABitMask) and
- (8 * fd.PixelSize = dwRGBBitCount) then
- exit;
- end;
-
- //find format with same Range
- Range.r := dwRBitMask;
- Range.g := dwGBitMask;
- Range.b := dwBBitMask;
- Range.a := dwABitMask;
- for i := 0 to 3 do begin
- while ((Range.arr[i] and 1) = 0) and (Range.arr[i] > 0) do
- Range.arr[i] := Range.arr[i] shr 1;
- end;
- for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- fd := TFormatDescriptor.Get(result);
- match := true;
- for i := 0 to 3 do
- if (fd.Range.arr[i] <> Range.arr[i]) then begin
- match := false;
- break;
- end;
- if match then
- break;
- end;
-
- //no format with same range found -> use default
- if (result = tfEmpty) then begin
- if (dwABitMask > 0) then
- result := tfBGRA8
- else
- result := tfBGR8;
- end;
-
- Converter := TbmpBitfieldFormat.Create;
- Converter.RedMask := dwRBitMask;
- Converter.GreenMask := dwGBitMask;
- Converter.BlueMask := dwBBitMask;
- Converter.AlphaMask := dwABitMask;
- Converter.PixelSize := dwRGBBitCount / 8;
- end;
- end;
- end;
-
-var
- StreamPos: Int64;
- x, y, LineSize, RowSize, Magic: Cardinal;
- NewImage, TmpData, RowData, SrcData: System.PByte;
- SourceMD, DestMD: Pointer;
- Pixel: TglBitmapPixelData;
- ddsFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-
-begin
- result := false;
- Converter := nil;
- StreamPos := aStream.Position;
-
- // Magic
- aStream.Read(Magic{%H-}, sizeof(Magic));
- if (Magic <> DDS_MAGIC) then begin
- aStream.Position := StreamPos;
- exit;
- end;
-
- //Header
- aStream.Read(Header{%H-}, sizeof(Header));
- if (Header.dwSize <> SizeOf(Header)) or
- ((Header.dwFlags and (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) <>
- (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) then
- begin
- aStream.Position := StreamPos;
- exit;
- end;
-
- if ((Header.Caps.dwCaps1 and DDSCAPS2_CUBEMAP) > 0) then
- raise EglBitmap.Create('LoadDDS - CubeMaps are not supported');
-
- ddsFormat := GetDDSFormat;
- try
- if (ddsFormat = tfEmpty) then
- raise EglBitmap.Create('LoadDDS - unsupported Pixelformat found.');
-
- FormatDesc := TFormatDescriptor.Get(ddsFormat);
- LineSize := Trunc(Header.dwWidth * FormatDesc.PixelSize);
- GetMem(NewImage, Header.dwHeight * LineSize);
- try
- TmpData := NewImage;
-
- //Converter needed
- if Assigned(Converter) then begin
- RowSize := Round(Header.dwWidth * Header.PixelFormat.dwRGBBitCount / 8);
- GetMem(RowData, RowSize);
- SourceMD := Converter.CreateMappingData;
- DestMD := FormatDesc.CreateMappingData;
- try
- for y := 0 to Header.dwHeight-1 do begin
- TmpData := NewImage;
- inc(TmpData, y * LineSize);
- SrcData := RowData;
- aStream.Read(SrcData^, RowSize);
- for x := 0 to Header.dwWidth-1 do begin
- Converter.Unmap(SrcData, Pixel, SourceMD);
- glBitmapConvertPixel(Pixel, Converter, FormatDesc);
- FormatDesc.Map(Pixel, TmpData, DestMD);
- end;
- end;
- finally
- Converter.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- FreeMem(RowData);
- end;
- end else
-
- // Compressed
- if ((Header.PixelFormat.dwFlags and DDPF_FOURCC) > 0) then begin
- RowSize := Header.dwPitchOrLinearSize div Header.dwWidth;
- for Y := 0 to Header.dwHeight-1 do begin
- aStream.Read(TmpData^, RowSize);
- Inc(TmpData, LineSize);
- end;
- end else
-
- // Uncompressed
- if (Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0 then begin
- RowSize := (Header.PixelFormat.dwRGBBitCount * Header.dwWidth) shr 3;
- for Y := 0 to Header.dwHeight-1 do begin
- aStream.Read(TmpData^, RowSize);
- Inc(TmpData, LineSize);
- end;
- end else
- raise EglBitmap.Create('LoadDDS - unsupported Pixelformat found.');
-
- SetDataPointer(NewImage, ddsFormat, Header.dwWidth, Header.dwHeight); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(NewImage) then
- FreeMem(NewImage);
- raise;
- end;
- finally
- FreeAndNil(Converter);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveDDS(const aStream: TStream);
-var
- Header: TDDSHeader;
- FormatDesc: TFormatDescriptor;
-begin
- if not (ftDDS in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- FormatDesc := TFormatDescriptor.Get(Format);
-
- // Generell
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.dwSize := SizeOf(Header);
- Header.dwFlags := DDSD_WIDTH or DDSD_HEIGHT or DDSD_CAPS or DDSD_PIXELFORMAT;
-
- Header.dwWidth := Max(1, Width);
- Header.dwHeight := Max(1, Height);
-
- // Caps
- Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
-
- // Pixelformat
- Header.PixelFormat.dwSize := sizeof(Header);
- if (FormatDesc.IsCompressed) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_FOURCC;
- case Format of
- tfS3tcDtx1RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT1;
- tfS3tcDtx3RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT3;
- tfS3tcDtx5RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT5;
- end;
- end else if (Format in [tfAlpha8, tfAlpha16]) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHA;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end else if (FormatDesc.RedMask = FormatDesc.GreenMask) and (FormatDesc.GreenMask = FormatDesc.BlueMask) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_LUMINANCE;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end else begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_RGB;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
- Header.PixelFormat.dwGBitMask := FormatDesc.GreenMask;
- Header.PixelFormat.dwBBitMask := FormatDesc.BlueMask;
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end;
-
- if (FormatDesc.HasAlpha) then
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
-
- aStream.Write(DDS_MAGIC, sizeof(DDS_MAGIC));
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Data^, FormatDesc.GetSize(Dimension));
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap1D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
-var
- pTemp: pByte;
- Size: Integer;
-begin
- if (aHeight > 1) then begin
- Size := TFormatDescriptor.Get(aFormat).GetSize(aWidth, 1);
- GetMem(pTemp, Size);
- try
- Move(aData^, pTemp^, Size);
- FreeMem(aData);
- aData := nil;
- except
- FreeMem(pTemp);
- raise;
- end;
- end else
- pTemp := aData;
- inherited SetDataPointer(pTemp, aFormat, aWidth);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap1D.FlipHorz: Boolean;
-var
- Col: Integer;
- pTempDest, pDest, pSource: PByte;
-begin
- result := inherited FlipHorz;
- if Assigned(Data) and not TFormatDescriptor.Get(Format).IsCompressed then begin
- pSource := Data;
- GetMem(pDest, fRowSize);
- try
- pTempDest := pDest;
- Inc(pTempDest, fRowSize);
- for Col := 0 to Width-1 do begin
- dec(pTempDest, fPixelSize); //dec before, because ptr is behind last byte of data
- Move(pSource^, pTempDest^, fPixelSize);
- Inc(pSource, fPixelSize);
- end;
- SetDataPointer(pDest, Format, Width); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(pDest) then
- FreeMem(pDest);
- raise;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.UploadData(const aBuildWithGlu: Boolean);
-var
- FormatDesc: TFormatDescriptor;
-begin
- // Upload data
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then begin
- if not Assigned(glCompressedTexImage1D) then
- raise EglBitmap.Create('compressed formats not supported by video adapter');
- glCompressedTexImage1D(Target, 0, FormatDesc.glInternalFormat, Width, 0, FormatDesc.GetSize(Width, 1), Data)
- end else if aBuildWithGlu then
- gluBuild1DMipmaps(Target, FormatDesc.glInternalFormat, Width, FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
- else
- glTexImage1D(Target, 0, FormatDesc.glInternalFormat, Width, 0, FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
-
- // Free Data
- if (FreeDataAfterGenTexture) then
- FreeData;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.GenTexture(const aTestTextureSize: Boolean);
-var
- BuildWithGlu, TexRec: Boolean;
- TexSize: Integer;
-begin
- if Assigned(Data) then begin
- // Check Texture Size
- if (aTestTextureSize) then begin
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
-
- if (Width > TexSize) then
- raise EglBitmapSizeToLarge.Create('TglBitmap1D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
-
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and
- (Target = GL_TEXTURE_RECTANGLE);
- if not (IsPowerOfTwo(Width) or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap1D.GenTexture - Rendercontex dosn''t support non power of two texture.');
- end;
-
- CreateId;
- SetupParameters(BuildWithGlu);
- UploadData(BuildWithGlu);
- glAreTexturesResident(1, @fID, @fIsResident);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.AfterConstruction;
-begin
- inherited;
- Target := GL_TEXTURE_1D;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap2D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap2D.GetScanline(const aIndex: Integer): Pointer;
-begin
- if (aIndex >= Low(fLines)) and (aIndex <= High(fLines)) then
- result := fLines[aIndex]
- else
- result := nil;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
-var
- Idx, LineWidth: Integer;
-begin
- inherited SetDataPointer(aData, aFormat, aWidth, aHeight);
-
- if not TFormatDescriptor.Get(aFormat).IsCompressed then begin
- // Assigning Data
- if Assigned(Data) then begin
- SetLength(fLines, GetHeight);
- LineWidth := Trunc(GetWidth * TFormatDescriptor.Get(Format).PixelSize);
-
- for Idx := 0 to GetHeight-1 do begin
- fLines[Idx] := Data;
- Inc(fLines[Idx], Idx * LineWidth);
- end;
- end
- else SetLength(fLines, 0);
- end else begin
- SetLength(fLines, 0);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.UploadData(const aTarget: GLenum; const aBuildWithGlu: Boolean);
-var
- FormatDesc: TFormatDescriptor;
-begin
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then begin
- if not Assigned(glCompressedTexImage2D) then
- raise EglBitmap.Create('compressed formats not supported by video adapter');
- glCompressedTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0, FormatDesc.GetSize(fDimension), Data)
- end else if aBuildWithGlu then begin
- gluBuild2DMipmaps(aTarget, FormatDesc.Components, Width, Height,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
- end else begin
- glTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
- end;
-
- // Freigeben
- if (FreeDataAfterGenTexture) then
- FreeData;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.AfterConstruction;
-begin
- inherited;
- Target := GL_TEXTURE_2D;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
-var
- Temp: pByte;
- Size, w, h: Integer;
- FormatDesc: TFormatDescriptor;
-begin
- FormatDesc := TFormatDescriptor.Get(aFormat);
- if FormatDesc.IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(aFormat);
-
- w := aRight - aLeft;
- h := aBottom - aTop;
- Size := FormatDesc.GetSize(w, h);
- GetMem(Temp, Size);
- try
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
- glReadPixels(aLeft, aTop, w, h, FormatDesc.glFormat, FormatDesc.glDataFormat, Temp);
- SetDataPointer(Temp, aFormat, w, h); //be careful, Data could be freed by this method
- FlipVert;
- except
- if Assigned(Temp) then
- FreeMem(Temp);
- raise;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GetDataFromTexture;
-var
- Temp: PByte;
- TempWidth, TempHeight: Integer;
- TempIntFormat: GLint;
- IntFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-begin
- Bind;
-
- // Request Data
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_WIDTH, @TempWidth);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_HEIGHT, @TempHeight);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_INTERNAL_FORMAT, @TempIntFormat);
-
- IntFormat := tfEmpty;
- FormatDesc := (TglBitmapFormatDescriptor.GetByFormat(TempIntFormat) as TFormatDescriptor);
- IntFormat := FormatDesc.Format;
-
- // Getting data from OpenGL
- FormatDesc := TFormatDescriptor.Get(IntFormat);
- GetMem(Temp, FormatDesc.GetSize(TempWidth, TempHeight));
- try
- if FormatDesc.IsCompressed then begin
- if not Assigned(glGetCompressedTexImage) then
- raise EglBitmap.Create('compressed formats not supported by video adapter');
- glGetCompressedTexImage(Target, 0, Temp)
- end else
- glGetTexImage(Target, 0, FormatDesc.glFormat, FormatDesc.glDataFormat, Temp);
- SetDataPointer(Temp, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
- except
- if Assigned(Temp) then
- FreeMem(Temp);
- raise;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GenTexture(const aTestTextureSize: Boolean);
-var
- BuildWithGlu, PotTex, TexRec: Boolean;
- TexSize: Integer;
-begin
- if Assigned(Data) then begin
- // Check Texture Size
- if (aTestTextureSize) then begin
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
-
- if ((Height > TexSize) or (Width > TexSize)) then
- raise EglBitmapSizeToLarge.Create('TglBitmap2D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
-
- PotTex := IsPowerOfTwo(Height) and IsPowerOfTwo(Width);
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and (Target = GL_TEXTURE_RECTANGLE);
- if not (PotTex or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
- end;
-
- CreateId;
- SetupParameters(BuildWithGlu);
- UploadData(Target, BuildWithGlu);
- glAreTexturesResident(1, @fID, @fIsResident);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap2D.FlipHorz: Boolean;
-var
- Col, Row: Integer;
- TempDestData, DestData, SourceData: PByte;
- ImgSize: Integer;
-begin
- result := inherited FlipHorz;
- if Assigned(Data) then begin
- SourceData := Data;
- ImgSize := Height * fRowSize;
- GetMem(DestData, ImgSize);
- try
- TempDestData := DestData;
- Dec(TempDestData, fRowSize + fPixelSize);
- for Row := 0 to Height -1 do begin
- Inc(TempDestData, fRowSize * 2);
- for Col := 0 to Width -1 do begin
- Move(SourceData^, TempDestData^, fPixelSize);
- Inc(SourceData, fPixelSize);
- Dec(TempDestData, fPixelSize);
- end;
- end;
- SetDataPointer(DestData, Format, Width, Height); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(DestData) then
- FreeMem(DestData);
- raise;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap2D.FlipVert: Boolean;
-var
- Row: Integer;
- TempDestData, DestData, SourceData: PByte;
-begin
- result := inherited FlipVert;
- if Assigned(Data) then begin
- SourceData := Data;
- GetMem(DestData, Height * fRowSize);
- try
- TempDestData := DestData;
- Inc(TempDestData, Width * (Height -1) * fPixelSize);
- for Row := 0 to Height -1 do begin
- Move(SourceData^, TempDestData^, fRowSize);
- Dec(TempDestData, fRowSize);
- Inc(SourceData, fRowSize);
- end;
- SetDataPointer(DestData, Format, Width, Height); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(DestData) then
- FreeMem(DestData);
- raise;
- end;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap2D - ToNormalMap///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-type
- TMatrixItem = record
- X, Y: Integer;
- W: Single;
- end;
-
- PglBitmapToNormalMapRec = ^TglBitmapToNormalMapRec;
- TglBitmapToNormalMapRec = Record
- Scale: Single;
- Heights: array of Single;
- MatrixU : array of TMatrixItem;
- MatrixV : array of TMatrixItem;
- end;
-
-const
- ONE_OVER_255 = 1 / 255;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapToNormalMapPrepareFunc(var FuncRec: TglBitmapFunctionRec);
-var
- Val: Single;
-begin
- with FuncRec do begin
- Val :=
- Source.Data.r * LUMINANCE_WEIGHT_R +
- Source.Data.g * LUMINANCE_WEIGHT_G +
- Source.Data.b * LUMINANCE_WEIGHT_B;
- PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Val * ONE_OVER_255;
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapToNormalMapPrepareAlphaFunc(var FuncRec: TglBitmapFunctionRec);
-begin
- with FuncRec do
- PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Source.Data.a * ONE_OVER_255;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapToNormalMapFunc (var FuncRec: TglBitmapFunctionRec);
-type
- TVec = Array[0..2] of Single;
-var
- Idx: Integer;
- du, dv: Double;
- Len: Single;
- Vec: TVec;
-
- function GetHeight(X, Y: Integer): Single;
- begin
- with FuncRec do begin
- X := Max(0, Min(Size.X -1, X));
- Y := Max(0, Min(Size.Y -1, Y));
- result := PglBitmapToNormalMapRec(Args)^.Heights[Y * Size.X + X];
- end;
- end;
-
-begin
- with FuncRec do begin
- with PglBitmapToNormalMapRec(Args)^ do begin
- du := 0;
- for Idx := Low(MatrixU) to High(MatrixU) do
- du := du + GetHeight(Position.X + MatrixU[Idx].X, Position.Y + MatrixU[Idx].Y) * MatrixU[Idx].W;
-
- dv := 0;
- for Idx := Low(MatrixU) to High(MatrixU) do
- dv := dv + GetHeight(Position.X + MatrixV[Idx].X, Position.Y + MatrixV[Idx].Y) * MatrixV[Idx].W;
-
- Vec[0] := -du * Scale;
- Vec[1] := -dv * Scale;
- Vec[2] := 1;
- end;
-
- // Normalize
- Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
- if Len <> 0 then begin
- Vec[0] := Vec[0] * Len;
- Vec[1] := Vec[1] * Len;
- Vec[2] := Vec[2] * Len;
- end;
-
- // Farbe zuweisem
- Dest.Data.r := Trunc((Vec[0] + 1) * 127.5);
- Dest.Data.g := Trunc((Vec[1] + 1) * 127.5);
- Dest.Data.b := Trunc((Vec[2] + 1) * 127.5);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.ToNormalMap(const aFunc: TglBitmapNormalMapFunc; const aScale: Single; const aUseAlpha: Boolean);
-var
- Rec: TglBitmapToNormalMapRec;
-
- procedure SetEntry (var Matrix: array of TMatrixItem; Index, X, Y: Integer; W: Single);
- begin
- if (Index >= Low(Matrix)) and (Index <= High(Matrix)) then begin
- Matrix[Index].X := X;
- Matrix[Index].Y := Y;
- Matrix[Index].W := W;
- end;
- end;
-
-begin
- if TFormatDescriptor.Get(Format).IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- if aScale > 100 then
- Rec.Scale := 100
- else if aScale < -100 then
- Rec.Scale := -100
- else
- Rec.Scale := aScale;
-
- SetLength(Rec.Heights, Width * Height);
- try
- case aFunc of
- nm4Samples: begin
- SetLength(Rec.MatrixU, 2);
- SetEntry(Rec.MatrixU, 0, -1, 0, -0.5);
- SetEntry(Rec.MatrixU, 1, 1, 0, 0.5);
-
- SetLength(Rec.MatrixV, 2);
- SetEntry(Rec.MatrixV, 0, 0, 1, 0.5);
- SetEntry(Rec.MatrixV, 1, 0, -1, -0.5);
- end;
-
- nmSobel: begin
- SetLength(Rec.MatrixU, 6);
- SetEntry(Rec.MatrixU, 0, -1, 1, -1.0);
- SetEntry(Rec.MatrixU, 1, -1, 0, -2.0);
- SetEntry(Rec.MatrixU, 2, -1, -1, -1.0);
- SetEntry(Rec.MatrixU, 3, 1, 1, 1.0);
- SetEntry(Rec.MatrixU, 4, 1, 0, 2.0);
- SetEntry(Rec.MatrixU, 5, 1, -1, 1.0);
-
- SetLength(Rec.MatrixV, 6);
- SetEntry(Rec.MatrixV, 0, -1, 1, 1.0);
- SetEntry(Rec.MatrixV, 1, 0, 1, 2.0);
- SetEntry(Rec.MatrixV, 2, 1, 1, 1.0);
- SetEntry(Rec.MatrixV, 3, -1, -1, -1.0);
- SetEntry(Rec.MatrixV, 4, 0, -1, -2.0);
- SetEntry(Rec.MatrixV, 5, 1, -1, -1.0);
- end;
-
- nm3x3: begin
- SetLength(Rec.MatrixU, 6);
- SetEntry(Rec.MatrixU, 0, -1, 1, -1/6);
- SetEntry(Rec.MatrixU, 1, -1, 0, -1/6);
- SetEntry(Rec.MatrixU, 2, -1, -1, -1/6);
- SetEntry(Rec.MatrixU, 3, 1, 1, 1/6);
- SetEntry(Rec.MatrixU, 4, 1, 0, 1/6);
- SetEntry(Rec.MatrixU, 5, 1, -1, 1/6);
-
- SetLength(Rec.MatrixV, 6);
- SetEntry(Rec.MatrixV, 0, -1, 1, 1/6);
- SetEntry(Rec.MatrixV, 1, 0, 1, 1/6);
- SetEntry(Rec.MatrixV, 2, 1, 1, 1/6);
- SetEntry(Rec.MatrixV, 3, -1, -1, -1/6);
- SetEntry(Rec.MatrixV, 4, 0, -1, -1/6);
- SetEntry(Rec.MatrixV, 5, 1, -1, -1/6);
- end;
-
- nm5x5: begin
- SetLength(Rec.MatrixU, 20);
- SetEntry(Rec.MatrixU, 0, -2, 2, -1 / 16);
- SetEntry(Rec.MatrixU, 1, -1, 2, -1 / 10);
- SetEntry(Rec.MatrixU, 2, 1, 2, 1 / 10);
- SetEntry(Rec.MatrixU, 3, 2, 2, 1 / 16);
- SetEntry(Rec.MatrixU, 4, -2, 1, -1 / 10);
- SetEntry(Rec.MatrixU, 5, -1, 1, -1 / 8);
- SetEntry(Rec.MatrixU, 6, 1, 1, 1 / 8);
- SetEntry(Rec.MatrixU, 7, 2, 1, 1 / 10);
- SetEntry(Rec.MatrixU, 8, -2, 0, -1 / 2.8);
- SetEntry(Rec.MatrixU, 9, -1, 0, -0.5);
- SetEntry(Rec.MatrixU, 10, 1, 0, 0.5);
- SetEntry(Rec.MatrixU, 11, 2, 0, 1 / 2.8);
- SetEntry(Rec.MatrixU, 12, -2, -1, -1 / 10);
- SetEntry(Rec.MatrixU, 13, -1, -1, -1 / 8);
- SetEntry(Rec.MatrixU, 14, 1, -1, 1 / 8);
- SetEntry(Rec.MatrixU, 15, 2, -1, 1 / 10);
- SetEntry(Rec.MatrixU, 16, -2, -2, -1 / 16);
- SetEntry(Rec.MatrixU, 17, -1, -2, -1 / 10);
- SetEntry(Rec.MatrixU, 18, 1, -2, 1 / 10);
- SetEntry(Rec.MatrixU, 19, 2, -2, 1 / 16);
-
- SetLength(Rec.MatrixV, 20);
- SetEntry(Rec.MatrixV, 0, -2, 2, 1 / 16);
- SetEntry(Rec.MatrixV, 1, -1, 2, 1 / 10);
- SetEntry(Rec.MatrixV, 2, 0, 2, 0.25);
- SetEntry(Rec.MatrixV, 3, 1, 2, 1 / 10);
- SetEntry(Rec.MatrixV, 4, 2, 2, 1 / 16);
- SetEntry(Rec.MatrixV, 5, -2, 1, 1 / 10);
- SetEntry(Rec.MatrixV, 6, -1, 1, 1 / 8);
- SetEntry(Rec.MatrixV, 7, 0, 1, 0.5);
- SetEntry(Rec.MatrixV, 8, 1, 1, 1 / 8);
- SetEntry(Rec.MatrixV, 9, 2, 1, 1 / 16);
- SetEntry(Rec.MatrixV, 10, -2, -1, -1 / 16);
- SetEntry(Rec.MatrixV, 11, -1, -1, -1 / 8);
- SetEntry(Rec.MatrixV, 12, 0, -1, -0.5);
- SetEntry(Rec.MatrixV, 13, 1, -1, -1 / 8);
- SetEntry(Rec.MatrixV, 14, 2, -1, -1 / 10);
- SetEntry(Rec.MatrixV, 15, -2, -2, -1 / 16);
- SetEntry(Rec.MatrixV, 16, -1, -2, -1 / 10);
- SetEntry(Rec.MatrixV, 17, 0, -2, -0.25);
- SetEntry(Rec.MatrixV, 18, 1, -2, -1 / 10);
- SetEntry(Rec.MatrixV, 19, 2, -2, -1 / 16);
- end;
- end;
-
- // Daten Sammeln
- if aUseAlpha and TFormatDescriptor.Get(Format).HasAlpha then
- AddFunc(glBitmapToNormalMapPrepareAlphaFunc, false, @Rec)
- else
- AddFunc(glBitmapToNormalMapPrepareFunc, false, @Rec);
- AddFunc(glBitmapToNormalMapFunc, false, @Rec);
- finally
- SetLength(Rec.Heights, 0);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmapCubeMap////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.GenTexture(const aTestTextureSize: Boolean);
-begin
- Assert(false, 'TglBitmapCubeMap.GenTexture - Don''t call GenTextures directly.');
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.AfterConstruction;
-begin
- inherited;
-
- if not (GL_VERSION_1_3 or GL_ARB_texture_cube_map or GL_EXT_texture_cube_map) then
- raise EglBitmap.Create('TglBitmapCubeMap.AfterConstruction - CubeMaps are unsupported.');
-
- SetWrap;
- Target := GL_TEXTURE_CUBE_MAP;
- fGenMode := GL_REFLECTION_MAP;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean);
-var
- BuildWithGlu: Boolean;
- TexSize: Integer;
-begin
- if (aTestTextureSize) then begin
- glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, @TexSize);
-
- if (Height > TexSize) or (Width > TexSize) then
- raise EglBitmapSizeToLarge.Create('TglBitmapCubeMap.GenTexture - The size for the Cubemap is to large. It''s may be not conform with the Hardware.');
-
- if not ((IsPowerOfTwo(Height) and IsPowerOfTwo(Width)) or GL_VERSION_2_0 or GL_ARB_texture_non_power_of_two) then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmapCubeMap.GenTexture - Cubemaps dosn''t support non power of two texture.');
- end;
-
- if (ID = 0) then
- CreateID;
- SetupParameters(BuildWithGlu);
- UploadData(aCubeTarget, BuildWithGlu);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.Bind(const aEnableTexCoordsGen: Boolean; const aEnableTextureUnit: Boolean);
-begin
- inherited Bind (aEnableTextureUnit);
- if aEnableTexCoordsGen then begin
- glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, fGenMode);
- glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, fGenMode);
- glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, fGenMode);
- glEnable(GL_TEXTURE_GEN_S);
- glEnable(GL_TEXTURE_GEN_T);
- glEnable(GL_TEXTURE_GEN_R);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.Unbind(const aDisableTexCoordsGen: Boolean; const aDisableTextureUnit: Boolean);
-begin
- inherited Unbind(aDisableTextureUnit);
- if aDisableTexCoordsGen then begin
- glDisable(GL_TEXTURE_GEN_S);
- glDisable(GL_TEXTURE_GEN_T);
- glDisable(GL_TEXTURE_GEN_R);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmapNormalMap//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-type
- TVec = Array[0..2] of Single;
- TglBitmapNormalMapGetVectorFunc = procedure (out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-
- PglBitmapNormalMapRec = ^TglBitmapNormalMapRec;
- TglBitmapNormalMapRec = record
- HalfSize : Integer;
- Func: TglBitmapNormalMapGetVectorFunc;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapPosX(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := aHalfSize;
- aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
- aVec[2] := - (aPosition.X + 0.5 - aHalfSize);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapNegX(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := - aHalfSize;
- aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
- aVec[2] := aPosition.X + 0.5 - aHalfSize;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapPosY(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := aPosition.X + 0.5 - aHalfSize;
- aVec[1] := aHalfSize;
- aVec[2] := aPosition.Y + 0.5 - aHalfSize;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapNegY(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := aPosition.X + 0.5 - aHalfSize;
- aVec[1] := - aHalfSize;
- aVec[2] := - (aPosition.Y + 0.5 - aHalfSize);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapPosZ(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := aPosition.X + 0.5 - aHalfSize;
- aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
- aVec[2] := aHalfSize;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapNegZ(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
-begin
- aVec[0] := - (aPosition.X + 0.5 - aHalfSize);
- aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
- aVec[2] := - aHalfSize;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapNormalMapFunc(var FuncRec: TglBitmapFunctionRec);
-var
- i: Integer;
- Vec: TVec;
- Len: Single;
-begin
- with FuncRec do begin
- with PglBitmapNormalMapRec(Args)^ do begin
- Func(Vec, Position, HalfSize);
-
- // Normalize
- Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
- if Len <> 0 then begin
- Vec[0] := Vec[0] * Len;
- Vec[1] := Vec[1] * Len;
- Vec[2] := Vec[2] * Len;
- end;
-
- // Scale Vector and AddVectro
- Vec[0] := Vec[0] * 0.5 + 0.5;
- Vec[1] := Vec[1] * 0.5 + 0.5;
- Vec[2] := Vec[2] * 0.5 + 0.5;
- end;
-
- // Set Color
- for i := 0 to 2 do
- Dest.Data.arr[i] := Round(Vec[i] * 255);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapNormalMap.AfterConstruction;
-begin
- inherited;
- fGenMode := GL_NORMAL_MAP;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapNormalMap.GenerateNormalMap(const aSize: Integer; const aTestTextureSize: Boolean);
-var
- Rec: TglBitmapNormalMapRec;
- SizeRec: TglBitmapPixelPosition;
-begin
- Rec.HalfSize := aSize div 2;
- FreeDataAfterGenTexture := false;
-
- SizeRec.Fields := [ffX, ffY];
- SizeRec.X := aSize;
- SizeRec.Y := aSize;
-
- // Positive X
- Rec.Func := glBitmapNormalMapPosX;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_X, aTestTextureSize);
-
- // Negative X
- Rec.Func := glBitmapNormalMapNegX;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, aTestTextureSize);
-
- // Positive Y
- Rec.Func := glBitmapNormalMapPosY;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, aTestTextureSize);
-
- // Negative Y
- Rec.Func := glBitmapNormalMapNegY;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, aTestTextureSize);
-
- // Positive Z
- Rec.Func := glBitmapNormalMapPosZ;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, aTestTextureSize);
-
- // Negative Z
- Rec.Func := glBitmapNormalMapNegZ;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, aTestTextureSize);
-end;
-
-
-initialization
- glBitmapSetDefaultFormat (tfEmpty);
- glBitmapSetDefaultMipmap (mmMipmap);
- glBitmapSetDefaultFilter (GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR);
- glBitmapSetDefaultWrap (GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
- glBitmapSetDefaultSwizzle(GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA);
-
- glBitmapSetDefaultFreeDataAfterGenTexture(true);
- glBitmapSetDefaultDeleteTextureOnFree (true);
-
- TFormatDescriptor.Init;
-
-{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- OpenGLInitialized := false;
- InitOpenGLCS := TCriticalSection.Create;
-{$ENDIF}
-
-finalization
- TFormatDescriptor.Finalize;
-
-{$IFDEF GLB_NATIVE_OGL}
- if Assigned(GL_LibHandle) then
- glbFreeLibrary(GL_LibHandle);
-
-{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- if Assigned(GLU_LibHandle) then
- glbFreeLibrary(GLU_LibHandle);
- FreeAndNil(InitOpenGLCS);
-{$ENDIF}
-{$ENDIF}
-
-end.
--- /dev/null
+{***********************************************************
+glBitmap by Steffen Xonna aka Lossy eX (2003-2008)
+http://www.opengl24.de/index.php?cat=header&file=glbitmap
+
+modified by Delphi OpenGL Community (http://delphigl.com/) (2013)
+
+------------------------------------------------------------
+The contents of this file are used with permission, subject to
+the Mozilla Public License Version 1.1 (the "License"); you may
+not use this file except in compliance with the License. You may
+obtain a copy of the License at
+http://www.mozilla.org/MPL/MPL-1.1.html
+------------------------------------------------------------
+Version 3.0.1
+------------------------------------------------------------
+History
+20-11-2013
+- refactoring of the complete library
+21-03-2010
+- The define GLB_DELPHI dosn't check versions anymore. If you say you are using delphi
+ then it's your problem if that isn't true. This prevents the unit for incompatibility
+ with newer versions of Delphi.
+- Problems with D2009+ resolved (Thanks noeska and all i forgot)
+- GetPixel isn't set if you are loading textures inside the constructor (Thanks Wilson)
+10-08-2008
+- AddAlphaFromglBitmap used the custom pointer instead the imagedatapointer (Thanks Wilson)
+- Additional Datapointer for functioninterface now has the name CustomData
+24-07-2008
+- AssigneAlphaToBitmap overwrites his own palette (Thanks Wilson)
+- If you load an texture from an file the property Filename will be set to the name of the file
+- Three new properties to attach custom data to the Texture objects
+ - CustomName (free for use string)
+ - CustomNameW (free for use widestring)
+ - CustomDataPointer (free for use pointer to attach other objects or complex structures)
+27-05-2008
+- RLE TGAs loaded much faster
+26-05-2008
+- fixed some problem with reading RLE TGAs.
+21-05-2008
+- function clone now only copys data if it's assigned and now it also copies the ID
+- it seems that lazarus dont like comments in comments.
+01-05-2008
+- It's possible to set the id of the texture
+- define GLB_NO_NATIVE_GL deactivated by default
+27-04-2008
+- Now supports the following libraries
+ - SDL and SDL_image
+ - libPNG
+ - libJPEG
+- Linux compatibillity via free pascal compatibility (delphi sources optional)
+- BMPs now loaded manuel
+- Large restructuring
+- Property DataPtr now has the name Data
+- Functions are more flexible between RGB(A) and BGR(A). RGB can be saved as Bitmap and will be saved as BGR
+- Unused Depth removed
+- Function FreeData to freeing image data added
+24-10-2007
+- ImageID flag of TGAs was ignored. (Thanks Zwoetzen)
+15-11-2006
+- Function SetBorderColor implemented (only used by opengl if wrap is set to GL_CLAMP_TO_BORDER)
+- Function AddAlphaFromValue implemented to use an fixed Value as Alphachannel
+- Function ReadOpenGLExtension is now only intern
+29-06-2006
+- pngimage now disabled by default like all other versions.
+26-06-2006
+- Setting up an anisotropic filter of 0 isnt allowed by nvidia (Thanks Ogridi)
+22-06-2006
+- Fixed some Problem with Delphi 5
+- Now uses the newest version of pngimage. Makes saving pngs much easier.
+22-03-2006
+- Property IsCompressed and Size removed. Not really supported by Spec (Thanks Ogridi)
+09-03-2006
+- Internal Format ifDepth8 added
+- function GrabScreen now supports all uncompressed formats
+31-01-2006
+- AddAlphaFromglBitmap implemented
+29-12-2005
+- LoadFromResource and LoadFromResourceId now needs an Instance and an ResourceType (for ID)
+28-12-2005
+- Width, Height and Depth internal changed to TglBitmapPixelPosition.
+ property Width, Height, Depth are still existing and new property Dimension are avail
+11-12-2005
+- Added native OpenGL Support. Breaking the dglOpenGL "barrier".
+19-10-2005
+- Added function GrabScreen to class TglBitmap2D
+18-10-2005
+- Added support to Save images
+- Added function Clone to Clone Instance
+11-10-2005
+- Functions now works with Cardinals for each channel. Up to 32 Bits per channel.
+ Usefull for Future
+- Several speed optimizations
+09-10-2005
+- Internal structure change. Loading of TGA, PNG and DDS improved.
+ Data, format and size will now set directly with SetDataPtr.
+- AddFunc now works with all Types of Images and Formats
+- Some Funtions moved to Baseclass TglBitmap
+06-10-2005
+- Added Support to decompress DXT3 and DXT5 compressed Images.
+- Added Mapping to convert data from one format into an other.
+05-10-2005
+- Added method ConvertTo in Class TglBitmap2D. Method allows to convert every
+ supported Input format (supported by GetPixel) into any uncompresed Format
+- Added Support to decompress DXT1 compressed Images.
+- SwapColors replaced by ConvertTo
+04-10-2005
+- Added Support for compressed DDSs
+- Added new internal formats (DXT1, DXT3, DXT5)
+29-09-2005
+- Parameter Components renamed to InternalFormat
+23-09-2005
+- Some AllocMem replaced with GetMem (little speed change)
+- better exception handling. Better protection from memory leaks.
+22-09-2005
+- Added support for Direct Draw Surfaces (.DDS) (uncompressed images only)
+- Added new internal formats (RGB8, RGBA8, RGBA4, RGB5A1, RGB10A2, R5G6B5)
+07-09-2005
+- Added support for Grayscale textures
+- Added internal formats (Alpha, Luminance, LuminanceAlpha, BGR8, BGRA8)
+10-07-2005
+- Added support for GL_VERSION_2_0
+- Added support for GL_EXT_texture_filter_anisotropic
+04-07-2005
+- Function FillWithColor fills the Image with one Color
+- Function LoadNormalMap added
+30-06-2005
+- ToNormalMap allows to Create an NormalMap from the Alphachannel
+- ToNormalMap now supports Sobel (nmSobel) function.
+29-06-2005
+- support for RLE Compressed RGB TGAs added
+28-06-2005
+- Class TglBitmapNormalMap added to support Normalmap generation
+- Added function ToNormalMap in class TglBitmap2D to genereate normal maps from textures.
+ 3 Filters are supported. (4 Samples, 3x3 and 5x5)
+16-06-2005
+- Method LoadCubeMapClass removed
+- LoadCubeMap returnvalue is now the Texture paramter. Such as LoadTextures
+- virtual abstract method GenTexture in class TglBitmap now is protected
+12-06-2005
+- now support DescriptionFlag in LoadTga. Allows vertical flipped images to be loaded as normal
+10-06-2005
+- little enhancement for IsPowerOfTwo
+- TglBitmap1D.GenTexture now tests NPOT Textures
+06-06-2005
+- some little name changes. All properties or function with Texture in name are
+ now without texture in name. We have allways texture so we dosn't name it.
+03-06-2005
+- GenTexture now tests if texture is NPOT and NPOT-Texture are supported or
+ TextureTarget is GL_TEXTURE_RECTANGLE. Else it raised an exception.
+02-06-2005
+- added support for GL_ARB_texture_rectangle, GL_EXT_texture_rectangle and GL_NV_texture_rectangle
+25-04-2005
+- Function Unbind added
+- call of SetFilter or SetTextureWrap if TextureID exists results in setting properties to opengl texture.
+21-04-2005
+- class TglBitmapCubeMap added (allows to Create Cubemaps)
+29-03-2005
+- Added Support for PNG Images. (http://pngdelphi.sourceforge.net/)
+ To Enable png's use the define pngimage
+22-03-2005
+- New Functioninterface added
+- Function GetPixel added
+27-11-2004
+- Property BuildMipMaps renamed to MipMap
+21-11-2004
+- property Name removed.
+- BuildMipMaps is now a set of 3 values. None, GluBuildMipmaps and SGIS_generate_mipmap
+22-05-2004
+- property name added. Only used in glForms!
+26-11-2003
+- property FreeDataAfterGenTexture is now available as default (default = true)
+- BuildMipmaps now implemented in TglBitmap1D (i've forgotten it)
+- function MoveMemory replaced with function Move (little speed change)
+- several calculations stored in variables (little speed change)
+29-09-2003
+- property BuildMipsMaps added (default = true)
+ if BuildMipMaps isn't set GenTextures uses glTexImage[12]D else it use gluBuild[12]dMipmaps
+- property FreeDataAfterGenTexture added (default = true)
+ if FreeDataAfterGenTexture is set the texturedata were deleted after the texture was generated.
+- parameter DisableOtherTextureUnits of Bind removed
+- parameter FreeDataAfterGeneration of GenTextures removed
+12-09-2003
+- TglBitmap dosn't delete data if class was destroyed (fixed)
+09-09-2003
+- Bind now enables TextureUnits (by params)
+- GenTextures can leave data (by param)
+- LoadTextures now optimal
+03-09-2003
+- Performance optimization in AddFunc
+- procedure Bind moved to subclasses
+- Added new Class TglBitmap1D to support real OpenGL 1D Textures
+19-08-2003
+- Texturefilter and texturewrap now also as defaults
+ Minfilter = GL_LINEAR_MIPMAP_LINEAR
+ Magfilter = GL_LINEAR
+ Wrap(str) = GL_CLAMP_TO_EDGE
+- Added new format tfCompressed to create a compressed texture.
+- propertys IsCompressed, TextureSize and IsResident added
+ IsCompressed and TextureSize only contains data from level 0
+18-08-2003
+- Added function AddFunc to add PerPixelEffects to Image
+- LoadFromFunc now based on AddFunc
+- Invert now based on AddFunc
+- SwapColors now based on AddFunc
+16-08-2003
+- Added function FlipHorz
+15-08-2003
+- Added function LaodFromFunc to create images with function
+- Added function FlipVert
+- Added internal format RGB(A) if GL_EXT_bgra or OpenGL 1.2 isn't supported
+29-07-2003
+- Added Alphafunctions to calculate alpha per function
+- Added Alpha from ColorKey using alphafunctions
+28-07-2003
+- First full functionally Version of glBitmap
+- Support for 24Bit and 32Bit TGA Pictures added
+25-07-2003
+- begin of programming
+***********************************************************}
+unit glBitmap;
+
+// Please uncomment the defines below to configure the glBitmap to your preferences.
+// If you have configured the unit you can uncomment the warning above.
+{$MESSAGE error 'Hey. I''m the glBitmap.pas and i need to be configured. My master tell me your preferences! ;)'}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Preferences ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// activate to enable build-in OpenGL support with statically linked methods
+// use dglOpenGL.pas if not enabled
+{.$DEFINE GLB_NATIVE_OGL_STATIC}
+
+// activate to enable build-in OpenGL support with dynamically linked methods
+// use dglOpenGL.pas if not enabled
+{.$DEFINE GLB_NATIVE_OGL_DYNAMIC}
+
+
+// activate to enable the support for SDL_surfaces
+{.$DEFINE GLB_SDL}
+
+// activate to enable the support for Delphi (including support for Delphi's (not Lazarus') TBitmap)
+{.$DEFINE GLB_DELPHI}
+
+// activate to enable the support for TLazIntfImage from Lazarus
+{.$DEFINE GLB_LAZARUS}
+
+
+
+// activate to enable the support of SDL_image to load files. (READ ONLY)
+// If you enable SDL_image all other libraries will be ignored!
+{.$DEFINE GLB_SDL_IMAGE}
+
+
+
+// activate to enable Lazarus TPortableNetworkGraphic support
+// if you enable this pngImage and libPNG will be ignored
+{.$DEFINE GLB_LAZ_PNG}
+
+// activate to enable png support with the unit pngimage -> http://pngdelphi.sourceforge.net/
+// if you enable pngimage the libPNG will be ignored
+{.$DEFINE GLB_PNGIMAGE}
+
+// activate to use the libPNG -> http://www.libpng.org/
+// You will need an aditional header -> http://www.opengl24.de/index.php?cat=header&file=libpng
+{.$DEFINE GLB_LIB_PNG}
+
+
+
+// activate to enable Lazarus TJPEGImage support
+// if you enable this delphi jpegs and libJPEG will be ignored
+{.$DEFINE GLB_LAZ_JPEG}
+
+// if you enable delphi jpegs the libJPEG will be ignored
+{.$DEFINE GLB_DELPHI_JPEG}
+
+// activate to use the libJPEG -> http://www.ijg.org/
+// You will need an aditional header -> http://www.opengl24.de/index.php?cat=header&file=libjpeg
+{.$DEFINE GLB_LIB_JPEG}
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// PRIVATE: do not change anything! //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Delphi Versions
+{$IFDEF fpc}
+ {$MODE Delphi}
+
+ {$IFDEF CPUI386}
+ {$DEFINE CPU386}
+ {$ASMMODE INTEL}
+ {$ENDIF}
+
+ {$IFNDEF WINDOWS}
+ {$linklib c}
+ {$ENDIF}
+{$ENDIF}
+
+// Operation System
+{$IF DEFINED(WIN32) or DEFINED(WIN64) or DEFINED(WINDOWS)}
+ {$DEFINE GLB_WIN}
+{$ELSEIF DEFINED(LINUX)}
+ {$DEFINE GLB_LINUX}
+{$IFEND}
+
+// native OpenGL Support
+{$IF DEFINED(GLB_NATIVE_OGL_STATIC) OR DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
+ {$DEFINE GLB_NATIVE_OGL}
+{$IFEND}
+
+// checking define combinations
+//SDL Image
+{$IFDEF GLB_SDL_IMAGE}
+ {$IFNDEF GLB_SDL}
+ {$MESSAGE warn 'SDL_image won''t work without SDL. SDL will be activated.'}
+ {$DEFINE GLB_SDL}
+ {$ENDIF}
+
+ {$IFDEF GLB_LAZ_PNG}
+ {$MESSAGE warn 'The Lazarus TPortableNetworkGraphics will be ignored because you are using SDL_image.'}
+ {$undef GLB_LAZ_PNG}
+ {$ENDIF}
+
+ {$IFDEF GLB_PNGIMAGE}
+ {$MESSAGE warn 'The unit pngimage will be ignored because you are using SDL_image.'}
+ {$undef GLB_PNGIMAGE}
+ {$ENDIF}
+
+ {$IFDEF GLB_LAZ_JPEG}
+ {$MESSAGE warn 'The Lazarus TJPEGImage will be ignored because you are using SDL_image.'}
+ {$undef GLB_LAZ_JPEG}
+ {$ENDIF}
+
+ {$IFDEF GLB_DELPHI_JPEG}
+ {$MESSAGE warn 'The unit JPEG will be ignored because you are using SDL_image.'}
+ {$undef GLB_DELPHI_JPEG}
+ {$ENDIF}
+
+ {$IFDEF GLB_LIB_PNG}
+ {$MESSAGE warn 'The library libPNG will be ignored because you are using SDL_image.'}
+ {$undef GLB_LIB_PNG}
+ {$ENDIF}
+
+ {$IFDEF GLB_LIB_JPEG}
+ {$MESSAGE warn 'The library libJPEG will be ignored because you are using SDL_image.'}
+ {$undef GLB_LIB_JPEG}
+ {$ENDIF}
+
+ {$DEFINE GLB_SUPPORT_PNG_READ}
+ {$DEFINE GLB_SUPPORT_JPEG_READ}
+{$ENDIF}
+
+// Lazarus TPortableNetworkGraphic
+{$IFDEF GLB_LAZ_PNG}
+ {$IFNDEF GLB_LAZARUS}
+ {$MESSAGE warn 'Lazarus TPortableNetworkGraphic won''t work without Lazarus. Lazarus will be activated.'}
+ {$DEFINE GLB_LAZARUS}
+ {$ENDIF}
+
+ {$IFDEF GLB_PNGIMAGE}
+ {$MESSAGE warn 'The pngimage will be ignored if you are using Lazarus TPortableNetworkGraphic.'}
+ {$undef GLB_PNGIMAGE}
+ {$ENDIF}
+
+ {$IFDEF GLB_LIB_PNG}
+ {$MESSAGE warn 'The library libPNG will be ignored if you are using Lazarus TPortableNetworkGraphic.'}
+ {$undef GLB_LIB_PNG}
+ {$ENDIF}
+
+ {$DEFINE GLB_SUPPORT_PNG_READ}
+ {$DEFINE GLB_SUPPORT_PNG_WRITE}
+{$ENDIF}
+
+// PNG Image
+{$IFDEF GLB_PNGIMAGE}
+ {$IFDEF GLB_LIB_PNG}
+ {$MESSAGE warn 'The library libPNG will be ignored if you are using pngimage.'}
+ {$undef GLB_LIB_PNG}
+ {$ENDIF}
+
+ {$DEFINE GLB_SUPPORT_PNG_READ}
+ {$DEFINE GLB_SUPPORT_PNG_WRITE}
+{$ENDIF}
+
+// libPNG
+{$IFDEF GLB_LIB_PNG}
+ {$DEFINE GLB_SUPPORT_PNG_READ}
+ {$DEFINE GLB_SUPPORT_PNG_WRITE}
+{$ENDIF}
+
+// Lazarus TJPEGImage
+{$IFDEF GLB_LAZ_JPEG}
+ {$IFNDEF GLB_LAZARUS}
+ {$MESSAGE warn 'Lazarus TJPEGImage won''t work without Lazarus. Lazarus will be activated.'}
+ {$DEFINE GLB_LAZARUS}
+ {$ENDIF}
+
+ {$IFDEF GLB_DELPHI_JPEG}
+ {$MESSAGE warn 'The Delphi JPEGImage will be ignored if you are using the Lazarus TJPEGImage.'}
+ {$undef GLB_DELPHI_JPEG}
+ {$ENDIF}
+
+ {$IFDEF GLB_LIB_JPEG}
+ {$MESSAGE warn 'The library libJPEG will be ignored if you are using the Lazarus TJPEGImage.'}
+ {$undef GLB_LIB_JPEG}
+ {$ENDIF}
+
+ {$DEFINE GLB_SUPPORT_JPEG_READ}
+ {$DEFINE GLB_SUPPORT_JPEG_WRITE}
+{$ENDIF}
+
+// JPEG Image
+{$IFDEF GLB_DELPHI_JPEG}
+ {$IFDEF GLB_LIB_JPEG}
+ {$MESSAGE warn 'The library libJPEG will be ignored if you are using the unit JPEG.'}
+ {$undef GLB_LIB_JPEG}
+ {$ENDIF}
+
+ {$DEFINE GLB_SUPPORT_JPEG_READ}
+ {$DEFINE GLB_SUPPORT_JPEG_WRITE}
+{$ENDIF}
+
+// libJPEG
+{$IFDEF GLB_LIB_JPEG}
+ {$DEFINE GLB_SUPPORT_JPEG_READ}
+ {$DEFINE GLB_SUPPORT_JPEG_WRITE}
+{$ENDIF}
+
+// native OpenGL
+{$IF DEFINED(GLB_NATIVE_OGL_STATIC) AND DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
+ {$MESSAGE warn 'GLB_NATIVE_OGL_STATIC will be ignored because you enabled GLB_NATIVE_OGL_DYNAMIC'}
+{$IFEND}
+
+// general options
+{$EXTENDEDSYNTAX ON}
+{$LONGSTRINGS ON}
+{$ALIGN ON}
+{$IFNDEF FPC}
+ {$OPTIMIZATION ON}
+{$ENDIF}
+
+interface
+
+uses
+ {$IFNDEF GLB_NATIVE_OGL} dglOpenGL, {$ENDIF}
+ {$IF DEFINED(GLB_WIN) AND
+ (DEFINED(GLB_NATIVE_OGL) OR
+ DEFINED(GLB_DELPHI))} windows, {$IFEND}
+
+ {$IFDEF GLB_SDL} SDL, {$ENDIF}
+ {$IFDEF GLB_LAZARUS} IntfGraphics, GraphType, Graphics, {$ENDIF}
+ {$IFDEF GLB_DELPHI} Dialogs, Graphics, Types, {$ENDIF}
+
+ {$IFDEF GLB_SDL_IMAGE} SDL_image, {$ENDIF}
+ {$IFDEF GLB_PNGIMAGE} pngimage, {$ENDIF}
+ {$IFDEF GLB_LIB_PNG} libPNG, {$ENDIF}
+ {$IFDEF GLB_DELPHI_JPEG} JPEG, {$ENDIF}
+ {$IFDEF GLB_LIB_JPEG} libJPEG, {$ENDIF}
+
+ Classes, SysUtils;
+
+{$IFDEF GLB_NATIVE_OGL}
+const
+ GL_TRUE = 1;
+ GL_FALSE = 0;
+
+ GL_ZERO = 0;
+ GL_ONE = 1;
+
+ GL_VERSION = $1F02;
+ GL_EXTENSIONS = $1F03;
+
+ GL_TEXTURE_1D = $0DE0;
+ GL_TEXTURE_2D = $0DE1;
+ GL_TEXTURE_RECTANGLE = $84F5;
+
+ GL_NORMAL_MAP = $8511;
+ GL_TEXTURE_CUBE_MAP = $8513;
+ GL_REFLECTION_MAP = $8512;
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X = $8515;
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_X = $8516;
+ GL_TEXTURE_CUBE_MAP_POSITIVE_Y = $8517;
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_Y = $8518;
+ GL_TEXTURE_CUBE_MAP_POSITIVE_Z = $8519;
+ GL_TEXTURE_CUBE_MAP_NEGATIVE_Z = $851A;
+
+ GL_TEXTURE_WIDTH = $1000;
+ GL_TEXTURE_HEIGHT = $1001;
+ GL_TEXTURE_INTERNAL_FORMAT = $1003;
+ GL_TEXTURE_SWIZZLE_RGBA = $8E46;
+
+ GL_S = $2000;
+ GL_T = $2001;
+ GL_R = $2002;
+ GL_Q = $2003;
+
+ GL_TEXTURE_GEN_S = $0C60;
+ GL_TEXTURE_GEN_T = $0C61;
+ GL_TEXTURE_GEN_R = $0C62;
+ GL_TEXTURE_GEN_Q = $0C63;
+
+ GL_RED = $1903;
+ GL_GREEN = $1904;
+ GL_BLUE = $1905;
+
+ GL_ALPHA = $1906;
+ GL_ALPHA4 = $803B;
+ GL_ALPHA8 = $803C;
+ GL_ALPHA12 = $803D;
+ GL_ALPHA16 = $803E;
+
+ GL_LUMINANCE = $1909;
+ GL_LUMINANCE4 = $803F;
+ GL_LUMINANCE8 = $8040;
+ GL_LUMINANCE12 = $8041;
+ GL_LUMINANCE16 = $8042;
+
+ GL_LUMINANCE_ALPHA = $190A;
+ GL_LUMINANCE4_ALPHA4 = $8043;
+ GL_LUMINANCE6_ALPHA2 = $8044;
+ GL_LUMINANCE8_ALPHA8 = $8045;
+ GL_LUMINANCE12_ALPHA4 = $8046;
+ GL_LUMINANCE12_ALPHA12 = $8047;
+ GL_LUMINANCE16_ALPHA16 = $8048;
+
+ GL_RGB = $1907;
+ GL_BGR = $80E0;
+ GL_R3_G3_B2 = $2A10;
+ GL_RGB4 = $804F;
+ GL_RGB5 = $8050;
+ GL_RGB565 = $8D62;
+ GL_RGB8 = $8051;
+ GL_RGB10 = $8052;
+ GL_RGB12 = $8053;
+ GL_RGB16 = $8054;
+
+ GL_RGBA = $1908;
+ GL_BGRA = $80E1;
+ GL_RGBA2 = $8055;
+ GL_RGBA4 = $8056;
+ GL_RGB5_A1 = $8057;
+ GL_RGBA8 = $8058;
+ GL_RGB10_A2 = $8059;
+ GL_RGBA12 = $805A;
+ GL_RGBA16 = $805B;
+
+ GL_DEPTH_COMPONENT = $1902;
+ GL_DEPTH_COMPONENT16 = $81A5;
+ GL_DEPTH_COMPONENT24 = $81A6;
+ GL_DEPTH_COMPONENT32 = $81A7;
+
+ GL_COMPRESSED_RGB = $84ED;
+ GL_COMPRESSED_RGBA = $84EE;
+ GL_COMPRESSED_RGB_S3TC_DXT1_EXT = $83F0;
+ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT = $83F1;
+ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT = $83F2;
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT = $83F3;
+
+ GL_UNSIGNED_BYTE = $1401;
+ GL_UNSIGNED_BYTE_3_3_2 = $8032;
+ GL_UNSIGNED_BYTE_2_3_3_REV = $8362;
+
+ GL_UNSIGNED_SHORT = $1403;
+ GL_UNSIGNED_SHORT_5_6_5 = $8363;
+ GL_UNSIGNED_SHORT_4_4_4_4 = $8033;
+ GL_UNSIGNED_SHORT_5_5_5_1 = $8034;
+ GL_UNSIGNED_SHORT_5_6_5_REV = $8364;
+ GL_UNSIGNED_SHORT_4_4_4_4_REV = $8365;
+ GL_UNSIGNED_SHORT_1_5_5_5_REV = $8366;
+
+ GL_UNSIGNED_INT = $1405;
+ GL_UNSIGNED_INT_8_8_8_8 = $8035;
+ GL_UNSIGNED_INT_10_10_10_2 = $8036;
+ GL_UNSIGNED_INT_8_8_8_8_REV = $8367;
+ GL_UNSIGNED_INT_2_10_10_10_REV = $8368;
+
+ { Texture Filter }
+ GL_TEXTURE_MAG_FILTER = $2800;
+ GL_TEXTURE_MIN_FILTER = $2801;
+ GL_NEAREST = $2600;
+ GL_NEAREST_MIPMAP_NEAREST = $2700;
+ GL_NEAREST_MIPMAP_LINEAR = $2702;
+ GL_LINEAR = $2601;
+ GL_LINEAR_MIPMAP_NEAREST = $2701;
+ GL_LINEAR_MIPMAP_LINEAR = $2703;
+
+ { Texture Wrap }
+ GL_TEXTURE_WRAP_S = $2802;
+ GL_TEXTURE_WRAP_T = $2803;
+ GL_TEXTURE_WRAP_R = $8072;
+ GL_CLAMP = $2900;
+ GL_REPEAT = $2901;
+ GL_CLAMP_TO_EDGE = $812F;
+ GL_CLAMP_TO_BORDER = $812D;
+ GL_MIRRORED_REPEAT = $8370;
+
+ { Other }
+ GL_GENERATE_MIPMAP = $8191;
+ GL_TEXTURE_BORDER_COLOR = $1004;
+ GL_MAX_TEXTURE_SIZE = $0D33;
+ GL_PACK_ALIGNMENT = $0D05;
+ GL_UNPACK_ALIGNMENT = $0CF5;
+
+ GL_TEXTURE_MAX_ANISOTROPY_EXT = $84FE;
+ GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT = $84FF;
+ GL_MAX_CUBE_MAP_TEXTURE_SIZE = $851C;
+ GL_TEXTURE_GEN_MODE = $2500;
+
+{$IF DEFINED(GLB_WIN)}
+ libglu = 'glu32.dll';
+ libopengl = 'opengl32.dll';
+{$ELSEIF DEFINED(GLB_LINUX)}
+ libglu = 'libGLU.so.1';
+ libopengl = 'libGL.so.1';
+{$IFEND}
+
+type
+ GLboolean = BYTEBOOL;
+ GLint = Integer;
+ GLsizei = Integer;
+ GLuint = Cardinal;
+ GLfloat = Single;
+ GLenum = Cardinal;
+
+ PGLvoid = Pointer;
+ PGLboolean = ^GLboolean;
+ PGLint = ^GLint;
+ PGLuint = ^GLuint;
+ PGLfloat = ^GLfloat;
+
+ TglCompressedTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglCompressedTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; height: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetCompressedTexImage = procedure(target: GLenum; level: GLint; img: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+{$IF DEFINED(GLB_WIN)}
+ TwglGetProcAddress = function (ProcName: PAnsiChar): Pointer; stdcall;
+{$ELSEIF DEFINED(GLB_LINUX)}
+ TglXGetProcAddress = function(ProcName: PAnsiChar): Pointer; cdecl;
+ TglXGetProcAddressARB = function(const name: PAnsiChar): pointer; cdecl;
+{$IFEND}
+
+{$IF DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
+ TglEnable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglDisable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TglGetString = function(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetIntegerv = procedure(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TglTexParameteri = procedure(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglTexParameteriv = procedure(target: GLenum; pname: GLenum; const params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglTexParameterfv = procedure(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetTexParameteriv = procedure(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetTexParameterfv = procedure(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetTexLevelParameteriv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetTexLevelParameterfv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TglTexGeni = procedure(coord: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGenTextures = procedure(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglBindTexture = procedure(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglDeleteTextures = procedure(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TglAreTexturesResident = function(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglReadPixels = procedure(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglPixelStorei = procedure(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TglTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TglGetTexImage = procedure(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+ TgluBuild1DMipmaps = function(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+ TgluBuild2DMipmaps = function(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
+
+{$ELSEIF DEFINED(GLB_NATIVE_OGL_STATIC)}
+ procedure glEnable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glDisable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ function glGetString(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetIntegerv(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ procedure glTexParameteri(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glTexParameteriv(target: GLenum; pname: GLenum; const params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glTexParameterfv(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetTexParameteriv(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetTexParameterfv(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetTexLevelParameteriv(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetTexLevelParameterfv(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ procedure glTexGeni(coord: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGenTextures(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glBindTexture(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glDeleteTextures(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ function glAreTexturesResident(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glReadPixels(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glPixelStorei(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ procedure glTexImage1D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glTexImage2D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+ procedure glGetTexImage(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
+
+ function gluBuild1DMipmaps(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
+ function gluBuild2DMipmaps(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
+{$IFEND}
+
+var
+ GL_VERSION_1_2,
+ GL_VERSION_1_3,
+ GL_VERSION_1_4,
+ GL_VERSION_2_0,
+ GL_VERSION_3_3,
+
+ GL_SGIS_generate_mipmap,
+
+ GL_ARB_texture_border_clamp,
+ GL_ARB_texture_mirrored_repeat,
+ GL_ARB_texture_rectangle,
+ GL_ARB_texture_non_power_of_two,
+ GL_ARB_texture_swizzle,
+ GL_ARB_texture_cube_map,
+
+ GL_IBM_texture_mirrored_repeat,
+
+ GL_NV_texture_rectangle,
+
+ GL_EXT_texture_edge_clamp,
+ GL_EXT_texture_rectangle,
+ GL_EXT_texture_swizzle,
+ GL_EXT_texture_cube_map,
+ GL_EXT_texture_filter_anisotropic: Boolean;
+
+ glCompressedTexImage1D: TglCompressedTexImage1D;
+ glCompressedTexImage2D: TglCompressedTexImage2D;
+ glGetCompressedTexImage: TglGetCompressedTexImage;
+
+{$IF DEFINED(GLB_WIN)}
+ wglGetProcAddress: TwglGetProcAddress;
+{$ELSEIF DEFINED(GLB_LINUX)}
+ glXGetProcAddress: TglXGetProcAddress;
+ glXGetProcAddressARB: TglXGetProcAddress;
+{$IFEND}
+
+{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+ glEnable: TglEnable;
+ glDisable: TglDisable;
+
+ glGetString: TglGetString;
+ glGetIntegerv: TglGetIntegerv;
+
+ glTexParameteri: TglTexParameteri;
+ glTexParameteriv: TglTexParameteriv;
+ glTexParameterfv: TglTexParameterfv;
+ glGetTexParameteriv: TglGetTexParameteriv;
+ glGetTexParameterfv: TglGetTexParameterfv;
+ glGetTexLevelParameteriv: TglGetTexLevelParameteriv;
+ glGetTexLevelParameterfv: TglGetTexLevelParameterfv;
+
+ glTexGeni: TglTexGeni;
+ glGenTextures: TglGenTextures;
+ glBindTexture: TglBindTexture;
+ glDeleteTextures: TglDeleteTextures;
+
+ glAreTexturesResident: TglAreTexturesResident;
+ glReadPixels: TglReadPixels;
+ glPixelStorei: TglPixelStorei;
+
+ glTexImage1D: TglTexImage1D;
+ glTexImage2D: TglTexImage2D;
+ glGetTexImage: TglGetTexImage;
+
+ gluBuild1DMipmaps: TgluBuild1DMipmaps;
+ gluBuild2DMipmaps: TgluBuild2DMipmaps;
+{$ENDIF}
+{$ENDIF}
+
+type
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmapFormat = (
+ tfEmpty = 0, //must be smallest value!
+
+ tfAlpha4,
+ tfAlpha8,
+ tfAlpha12,
+ tfAlpha16,
+
+ tfLuminance4,
+ tfLuminance8,
+ tfLuminance12,
+ tfLuminance16,
+
+ tfLuminance4Alpha4,
+ tfLuminance6Alpha2,
+ tfLuminance8Alpha8,
+ tfLuminance12Alpha4,
+ tfLuminance12Alpha12,
+ tfLuminance16Alpha16,
+
+ tfR3G3B2,
+ tfRGB4,
+ tfR5G6B5,
+ tfRGB5,
+ tfRGB8,
+ tfRGB10,
+ tfRGB12,
+ tfRGB16,
+
+ tfRGBA2,
+ tfRGBA4,
+ tfRGB5A1,
+ tfRGBA8,
+ tfRGB10A2,
+ tfRGBA12,
+ tfRGBA16,
+
+ tfBGR4,
+ tfB5G6R5,
+ tfBGR5,
+ tfBGR8,
+ tfBGR10,
+ tfBGR12,
+ tfBGR16,
+
+ tfBGRA2,
+ tfBGRA4,
+ tfBGR5A1,
+ tfBGRA8,
+ tfBGR10A2,
+ tfBGRA12,
+ tfBGRA16,
+
+ tfDepth16,
+ tfDepth24,
+ tfDepth32,
+
+ tfS3tcDtx1RGBA,
+ tfS3tcDtx3RGBA,
+ tfS3tcDtx5RGBA
+ );
+
+ TglBitmapFileType = (
+ {$IFDEF GLB_SUPPORT_PNG_WRITE} ftPNG, {$ENDIF}
+ {$IFDEF GLB_SUPPORT_JPEG_WRITE}ftJPEG, {$ENDIF}
+ ftDDS,
+ ftTGA,
+ ftBMP);
+ TglBitmapFileTypes = set of TglBitmapFileType;
+
+ TglBitmapMipMap = (
+ mmNone,
+ mmMipmap,
+ mmMipmapGlu);
+
+ TglBitmapNormalMapFunc = (
+ nm4Samples,
+ nmSobel,
+ nm3x3,
+ nm5x5);
+
+ ////////////////////////////////////////////////////////////////////////////////////////////////////
+ EglBitmap = class(Exception);
+ EglBitmapNotSupported = class(Exception);
+ EglBitmapSizeToLarge = class(EglBitmap);
+ EglBitmapNonPowerOfTwo = class(EglBitmap);
+ EglBitmapUnsupportedFormat = class(EglBitmap)
+ public
+ constructor Create(const aFormat: TglBitmapFormat); overload;
+ constructor Create(const aMsg: String; const aFormat: TglBitmapFormat); overload;
+ end;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmapColorRec = packed record
+ case Integer of
+ 0: (r, g, b, a: Cardinal);
+ 1: (arr: array[0..3] of Cardinal);
+ end;
+
+ TglBitmapPixelData = packed record
+ Data, Range: TglBitmapColorRec;
+ Format: TglBitmapFormat;
+ end;
+ PglBitmapPixelData = ^TglBitmapPixelData;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmapPixelPositionFields = set of (ffX, ffY);
+ TglBitmapPixelPosition = record
+ Fields : TglBitmapPixelPositionFields;
+ X : Word;
+ Y : Word;
+ end;
+
+ TglBitmapFormatDescriptor = class(TObject)
+ protected
+ function GetIsCompressed: Boolean; virtual; abstract;
+ function GetHasRed: Boolean; virtual; abstract;
+ function GetHasGreen: Boolean; virtual; abstract;
+ function GetHasBlue: Boolean; virtual; abstract;
+ function GetHasAlpha: Boolean; virtual; abstract;
+
+ function GetglDataFormat: GLenum; virtual; abstract;
+ function GetglFormat: GLenum; virtual; abstract;
+ function GetglInternalFormat: GLenum; virtual; abstract;
+ public
+ property IsCompressed: Boolean read GetIsCompressed;
+ property HasRed: Boolean read GetHasRed;
+ property HasGreen: Boolean read GetHasGreen;
+ property HasBlue: Boolean read GetHasBlue;
+ property HasAlpha: Boolean read GetHasAlpha;
+
+ property glFormat: GLenum read GetglFormat;
+ property glInternalFormat: GLenum read GetglInternalFormat;
+ property glDataFormat: GLenum read GetglDataFormat;
+ public
+ class function GetByFormat(const aInternalFormat: GLenum): TglBitmapFormatDescriptor;
+ end;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmap = class;
+ TglBitmapFunctionRec = record
+ Sender: TglBitmap;
+ Size: TglBitmapPixelPosition;
+ Position: TglBitmapPixelPosition;
+ Source: TglBitmapPixelData;
+ Dest: TglBitmapPixelData;
+ Args: Pointer;
+ end;
+ TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec);
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmap = class
+ private
+ function GetFormatDesc: TglBitmapFormatDescriptor;
+ protected
+ fID: GLuint;
+ fTarget: GLuint;
+ fAnisotropic: Integer;
+ fDeleteTextureOnFree: Boolean;
+ fFreeDataOnDestroy: Boolean;
+ fFreeDataAfterGenTexture: Boolean;
+ fData: PByte;
+ fIsResident: GLboolean;
+ fBorderColor: array[0..3] of Single;
+
+ fDimension: TglBitmapPixelPosition;
+ fMipMap: TglBitmapMipMap;
+ fFormat: TglBitmapFormat;
+
+ // Mapping
+ fPixelSize: Integer;
+ fRowSize: Integer;
+
+ // Filtering
+ fFilterMin: GLenum;
+ fFilterMag: GLenum;
+
+ // TexturWarp
+ fWrapS: GLenum;
+ fWrapT: GLenum;
+ fWrapR: GLenum;
+
+ //Swizzle
+ fSwizzle: array[0..3] of GLenum;
+
+ // CustomData
+ fFilename: String;
+ fCustomName: String;
+ fCustomNameW: WideString;
+ fCustomData: Pointer;
+
+ //Getter
+ function GetWidth: Integer; virtual;
+ function GetHeight: Integer; virtual;
+
+ function GetFileWidth: Integer; virtual;
+ function GetFileHeight: Integer; virtual;
+
+ //Setter
+ procedure SetCustomData(const aValue: Pointer);
+ procedure SetCustomName(const aValue: String);
+ procedure SetCustomNameW(const aValue: WideString);
+ procedure SetFreeDataOnDestroy(const aValue: Boolean);
+ procedure SetDeleteTextureOnFree(const aValue: Boolean);
+ procedure SetFormat(const aValue: TglBitmapFormat);
+ procedure SetFreeDataAfterGenTexture(const aValue: Boolean);
+ procedure SetID(const aValue: Cardinal);
+ procedure SetMipMap(const aValue: TglBitmapMipMap);
+ procedure SetTarget(const aValue: Cardinal);
+ procedure SetAnisotropic(const aValue: Integer);
+
+ procedure CreateID;
+ procedure SetupParameters(out aBuildWithGlu: Boolean);
+ procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer = -1; const aHeight: Integer = -1); virtual; //be careful, aData could be freed by this method
+ procedure GenTexture(const aTestTextureSize: Boolean = true); virtual; abstract;
+
+ function FlipHorz: Boolean; virtual;
+ function FlipVert: Boolean; virtual;
+
+ property Width: Integer read GetWidth;
+ property Height: Integer read GetHeight;
+
+ property FileWidth: Integer read GetFileWidth;
+ property FileHeight: Integer read GetFileHeight;
+ public
+ //Properties
+ property ID: Cardinal read fID write SetID;
+ property Target: Cardinal read fTarget write SetTarget;
+ property Format: TglBitmapFormat read fFormat write SetFormat;
+ property MipMap: TglBitmapMipMap read fMipMap write SetMipMap;
+ property Anisotropic: Integer read fAnisotropic write SetAnisotropic;
+
+ property FormatDesc: TglBitmapFormatDescriptor read GetFormatDesc;
+
+ property Filename: String read fFilename;
+ property CustomName: String read fCustomName write SetCustomName;
+ property CustomNameW: WideString read fCustomNameW write SetCustomNameW;
+ property CustomData: Pointer read fCustomData write SetCustomData;
+
+ property DeleteTextureOnFree: Boolean read fDeleteTextureOnFree write SetDeleteTextureOnFree;
+ property FreeDataOnDestroy: Boolean read fFreeDataOnDestroy write SetFreeDataOnDestroy;
+ property FreeDataAfterGenTexture: Boolean read fFreeDataAfterGenTexture write SetFreeDataAfterGenTexture;
+
+ property Dimension: TglBitmapPixelPosition read fDimension;
+ property Data: PByte read fData;
+ property IsResident: GLboolean read fIsResident;
+
+ procedure AfterConstruction; override;
+ procedure BeforeDestruction; override;
+
+ procedure PrepareResType(var aResource: String; var aResType: PChar);
+
+ //Load
+ procedure LoadFromFile(const aFilename: String);
+ procedure LoadFromStream(const aStream: TStream); virtual;
+ procedure LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
+ const aFormat: TglBitmapFormat; const aArgs: Pointer = nil);
+ procedure LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar = nil);
+ procedure LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+
+ //Save
+ procedure SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
+ procedure SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType); virtual;
+
+ //Convert
+ function AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer = nil): Boolean; overload;
+ function AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
+ const aFormat: TglBitmapFormat; const aArgs: Pointer = nil): Boolean; overload;
+ public
+ //Alpha & Co
+ {$IFDEF GLB_SDL}
+ function AssignToSurface(out aSurface: PSDL_Surface): Boolean;
+ function AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
+ function AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
+ function AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil;
+ const aArgs: Pointer = nil): Boolean;
+ {$ENDIF}
+
+ {$IFDEF GLB_DELPHI}
+ function AssignToBitmap(const aBitmap: TBitmap): Boolean;
+ function AssignFromBitmap(const aBitmap: TBitmap): Boolean;
+ function AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
+ function AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction = nil;
+ const aArgs: Pointer = nil): Boolean;
+ {$ENDIF}
+
+ {$IFDEF GLB_LAZARUS}
+ function AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+ function AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
+ function AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+ function AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction = nil;
+ const aArgs: Pointer = nil): Boolean;
+ {$ENDIF}
+
+ function AddAlphaFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar = nil;
+ const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+ function AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
+ const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+
+ function AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer = nil): Boolean; virtual;
+ function AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+ function AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+ function AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+
+ function AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte = 0): Boolean;
+ function AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal = 0): Boolean;
+ function AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single = 0): Boolean;
+
+ function AddAlphaFromValue(const aAlpha: Byte): Boolean;
+ function AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
+ function AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
+
+ function RemoveAlpha: Boolean; virtual;
+ public
+ //Common
+ function Clone: TglBitmap;
+ function ConvertTo(const aFormat: TglBitmapFormat): Boolean; virtual;
+ procedure Invert(const aUseRGB: Boolean = true; const aUseAlpha: Boolean = false);
+ procedure SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
+ procedure FreeData;
+
+ //ColorFill
+ procedure FillWithColor(const aRed, aGreen, aBlue: Byte; const aAlpha: Byte = 255);
+ procedure FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal = $FFFFFFFF);
+ procedure FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha : Single = 1);
+
+ //TexParameters
+ procedure SetFilter(const aMin, aMag: GLenum);
+ procedure SetWrap(
+ const S: GLenum = GL_CLAMP_TO_EDGE;
+ const T: GLenum = GL_CLAMP_TO_EDGE;
+ const R: GLenum = GL_CLAMP_TO_EDGE);
+ procedure SetSwizzle(const r, g, b, a: GLenum);
+
+ procedure Bind(const aEnableTextureUnit: Boolean = true); virtual;
+ procedure Unbind(const aDisableTextureUnit: Boolean = true); virtual;
+
+ //Constructors
+ constructor Create; overload;
+ constructor Create(const aFileName: String); overload;
+ constructor Create(const aStream: TStream); overload;
+ constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; aData: PByte = nil); overload;
+ constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer = nil); overload;
+ constructor Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil); overload;
+ constructor Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar); overload;
+ private
+ {$IFDEF GLB_SUPPORT_PNG_READ} function LoadPNG(const aStream: TStream): Boolean; virtual; {$ENDIF}
+ {$ifdef GLB_SUPPORT_PNG_WRITE} procedure SavePNG(const aStream: TStream); virtual; {$ENDIF}
+
+ {$IFDEF GLB_SUPPORT_JPEG_READ} function LoadJPEG(const aStream: TStream): Boolean; virtual; {$ENDIF}
+ {$IFDEF GLB_SUPPORT_JPEG_WRITE} procedure SaveJPEG(const aStream: TStream); virtual; {$ENDIF}
+
+ function LoadBMP(const aStream: TStream): Boolean; virtual;
+ procedure SaveBMP(const aStream: TStream); virtual;
+
+ function LoadTGA(const aStream: TStream): Boolean; virtual;
+ procedure SaveTGA(const aStream: TStream); virtual;
+
+ function LoadDDS(const aStream: TStream): Boolean; virtual;
+ procedure SaveDDS(const aStream: TStream); virtual;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmap1D = class(TglBitmap)
+ protected
+ procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
+ procedure UploadData(const aBuildWithGlu: Boolean);
+ public
+ property Width;
+ procedure AfterConstruction; override;
+ function FlipHorz: Boolean; override;
+ procedure GenTexture(const aTestTextureSize: Boolean = true); override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmap2D = class(TglBitmap)
+ protected
+ fLines: array of PByte;
+ function GetScanline(const aIndex: Integer): Pointer;
+ procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
+ procedure UploadData(const aTarget: GLenum; const aBuildWithGlu: Boolean);
+ public
+ property Width;
+ property Height;
+ property Scanline[const aIndex: Integer]: Pointer read GetScanline;
+
+ procedure AfterConstruction; override;
+
+ procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
+ procedure GetDataFromTexture;
+ procedure GenTexture(const aTestTextureSize: Boolean = true); override;
+
+ function FlipHorz: Boolean; override;
+ function FlipVert: Boolean; override;
+
+ procedure ToNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3;
+ const aScale: Single = 2; const aUseAlpha: Boolean = false);
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmapCubeMap = class(TglBitmap2D)
+ protected
+ fGenMode: Integer;
+ procedure GenTexture(const aTestTextureSize: Boolean = true); reintroduce;
+ public
+ procedure AfterConstruction; override;
+ procedure GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean = true);
+ procedure Bind(const aEnableTexCoordsGen: Boolean = true; const aEnableTextureUnit: Boolean = true); reintroduce; virtual;
+ procedure Unbind(const aDisableTexCoordsGen: Boolean = true; const aDisableTextureUnit: Boolean = true); reintroduce; virtual;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TglBitmapNormalMap = class(TglBitmapCubeMap)
+ public
+ procedure AfterConstruction; override;
+ procedure GenerateNormalMap(const aSize: Integer = 32; const aTestTextureSize: Boolean = true);
+ end;
+
+ TglcBitmapFormat = TglBitmapFormat;
+ TglcBitmap1D = TglBitmap1D;
+ TglcBitmap2D = TglBitmap2D;
+ TglcBitmapCubeMap = TglBitmapCubeMap;
+ TglcBitmapNormalMap = TglBitmapNormalMap;
+
+const
+ NULL_SIZE: TglBitmapPixelPosition = (Fields: []; X: 0; Y: 0);
+
+procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
+procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
+procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
+procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
+procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
+procedure glBitmapSetDefaultWrap(
+ const S: Cardinal = GL_CLAMP_TO_EDGE;
+ const T: Cardinal = GL_CLAMP_TO_EDGE;
+ const R: Cardinal = GL_CLAMP_TO_EDGE);
+
+function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
+function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
+function glBitmapGetDefaultMipmap: TglBitmapMipMap;
+function glBitmapGetDefaultFormat: TglBitmapFormat;
+procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal);
+procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal);
+
+function glBitmapPosition(X: Integer = -1; Y: Integer = -1): TglBitmapPixelPosition;
+function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
+function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
+
+var
+ glBitmapDefaultDeleteTextureOnFree: Boolean;
+ glBitmapDefaultFreeDataAfterGenTextures: Boolean;
+ glBitmapDefaultFormat: TglBitmapFormat;
+ glBitmapDefaultMipmap: TglBitmapMipMap;
+ glBitmapDefaultFilterMin: Cardinal;
+ glBitmapDefaultFilterMag: Cardinal;
+ glBitmapDefaultWrapS: Cardinal;
+ glBitmapDefaultWrapT: Cardinal;
+ glBitmapDefaultWrapR: Cardinal;
+ glDefaultSwizzle: array[0..3] of GLenum;
+
+{$IFDEF GLB_DELPHI}
+function CreateGrayPalette: HPALETTE;
+{$ENDIF}
+
+implementation
+
+uses
+ Math, syncobjs, typinfo
+ {$IF DEFINED(GLB_SUPPORT_JPEG_READ) AND DEFINED(GLB_LAZ_JPEG)}, FPReadJPEG{$IFEND};
+
+type
+{$IFNDEF fpc}
+ QWord = System.UInt64;
+ PQWord = ^QWord;
+
+ PtrInt = Longint;
+ PtrUInt = DWord;
+{$ENDIF}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+ TShiftRec = packed record
+ case Integer of
+ 0: (r, g, b, a: Byte);
+ 1: (arr: array[0..3] of Byte);
+ end;
+
+ TFormatDescriptor = class(TglBitmapFormatDescriptor)
+ private
+ function GetRedMask: QWord;
+ function GetGreenMask: QWord;
+ function GetBlueMask: QWord;
+ function GetAlphaMask: QWord;
+ protected
+ fFormat: TglBitmapFormat;
+ fWithAlpha: TglBitmapFormat;
+ fWithoutAlpha: TglBitmapFormat;
+ fRGBInverted: TglBitmapFormat;
+ fUncompressed: TglBitmapFormat;
+ fPixelSize: Single;
+ fIsCompressed: Boolean;
+
+ fRange: TglBitmapColorRec;
+ fShift: TShiftRec;
+
+ fglFormat: GLenum;
+ fglInternalFormat: GLenum;
+ fglDataFormat: GLenum;
+
+ function GetIsCompressed: Boolean; override;
+ function GetHasRed: Boolean; override;
+ function GetHasGreen: Boolean; override;
+ function GetHasBlue: Boolean; override;
+ function GetHasAlpha: Boolean; override;
+
+ function GetglFormat: GLenum; override;
+ function GetglInternalFormat: GLenum; override;
+ function GetglDataFormat: GLenum; override;
+
+ function GetComponents: Integer; virtual;
+ public
+ property Format: TglBitmapFormat read fFormat;
+ property WithAlpha: TglBitmapFormat read fWithAlpha;
+ property WithoutAlpha: TglBitmapFormat read fWithoutAlpha;
+ property RGBInverted: TglBitmapFormat read fRGBInverted;
+ property Components: Integer read GetComponents;
+ property PixelSize: Single read fPixelSize;
+
+ property Range: TglBitmapColorRec read fRange;
+ property Shift: TShiftRec read fShift;
+
+ property RedMask: QWord read GetRedMask;
+ property GreenMask: QWord read GetGreenMask;
+ property BlueMask: QWord read GetBlueMask;
+ property AlphaMask: QWord read GetAlphaMask;
+
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); virtual; abstract;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); virtual; abstract;
+
+ function GetSize(const aSize: TglBitmapPixelPosition): Integer; overload; virtual;
+ function GetSize(const aWidth, aHeight: Integer): Integer; overload; virtual;
+
+ function CreateMappingData: Pointer; virtual;
+ procedure FreeMappingData(var aMappingData: Pointer); virtual;
+
+ function IsEmpty: Boolean; virtual;
+ function MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean; virtual;
+
+ procedure PreparePixel(out aPixel: TglBitmapPixelData); virtual;
+
+ constructor Create; virtual;
+ public
+ class procedure Init;
+ class function Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
+ class function GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
+ class procedure Clear;
+ class procedure Finalize;
+ end;
+ TFormatDescriptorClass = class of TFormatDescriptor;
+
+ TfdEmpty = class(TFormatDescriptor);
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TfdAlpha_UB1 = class(TFormatDescriptor) //1* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdLuminance_UB1 = class(TFormatDescriptor) //1* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdUniversal_UB1 = class(TFormatDescriptor) //1* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdLuminanceAlpha_UB2 = class(TfdLuminance_UB1) //2* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdRGB_UB3 = class(TFormatDescriptor) //3* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdBGR_UB3 = class(TFormatDescriptor) //3* unsigned byte (inverse)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdRGBA_UB4 = class(TfdRGB_UB3) //4* unsigned byte
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdBGRA_UB4 = class(TfdBGR_UB3) //4* unsigned byte (inverse)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TfdAlpha_US1 = class(TFormatDescriptor) //1* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdLuminance_US1 = class(TFormatDescriptor) //1* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdUniversal_US1 = class(TFormatDescriptor) //1* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdDepth_US1 = class(TFormatDescriptor) //1* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdLuminanceAlpha_US2 = class(TfdLuminance_US1) //2* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdRGB_US3 = class(TFormatDescriptor) //3* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdBGR_US3 = class(TFormatDescriptor) //3* unsigned short (inverse)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdRGBA_US4 = class(TfdRGB_US3) //4* unsigned short
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdBGRA_US4 = class(TfdBGR_US3) //4* unsigned short (inverse)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TfdUniversal_UI1 = class(TFormatDescriptor) //1* unsigned int
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdDepth_UI1 = class(TFormatDescriptor) //1* unsigned int
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TfdAlpha4 = class(TfdAlpha_UB1)
+ constructor Create; override;
+ end;
+
+ TfdAlpha8 = class(TfdAlpha_UB1)
+ constructor Create; override;
+ end;
+
+ TfdAlpha12 = class(TfdAlpha_US1)
+ constructor Create; override;
+ end;
+
+ TfdAlpha16 = class(TfdAlpha_US1)
+ constructor Create; override;
+ end;
+
+ TfdLuminance4 = class(TfdLuminance_UB1)
+ constructor Create; override;
+ end;
+
+ TfdLuminance8 = class(TfdLuminance_UB1)
+ constructor Create; override;
+ end;
+
+ TfdLuminance12 = class(TfdLuminance_US1)
+ constructor Create; override;
+ end;
+
+ TfdLuminance16 = class(TfdLuminance_US1)
+ constructor Create; override;
+ end;
+
+ TfdLuminance4Alpha4 = class(TfdLuminanceAlpha_UB2)
+ constructor Create; override;
+ end;
+
+ TfdLuminance6Alpha2 = class(TfdLuminanceAlpha_UB2)
+ constructor Create; override;
+ end;
+
+ TfdLuminance8Alpha8 = class(TfdLuminanceAlpha_UB2)
+ constructor Create; override;
+ end;
+
+ TfdLuminance12Alpha4 = class(TfdLuminanceAlpha_US2)
+ constructor Create; override;
+ end;
+
+ TfdLuminance12Alpha12 = class(TfdLuminanceAlpha_US2)
+ constructor Create; override;
+ end;
+
+ TfdLuminance16Alpha16 = class(TfdLuminanceAlpha_US2)
+ constructor Create; override;
+ end;
+
+ TfdR3G3B2 = class(TfdUniversal_UB1)
+ constructor Create; override;
+ end;
+
+ TfdRGB4 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdR5G6B5 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdRGB5 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdRGB8 = class(TfdRGB_UB3)
+ constructor Create; override;
+ end;
+
+ TfdRGB10 = class(TfdUniversal_UI1)
+ constructor Create; override;
+ end;
+
+ TfdRGB12 = class(TfdRGB_US3)
+ constructor Create; override;
+ end;
+
+ TfdRGB16 = class(TfdRGB_US3)
+ constructor Create; override;
+ end;
+
+ TfdRGBA2 = class(TfdRGBA_UB4)
+ constructor Create; override;
+ end;
+
+ TfdRGBA4 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdRGB5A1 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdRGBA8 = class(TfdRGBA_UB4)
+ constructor Create; override;
+ end;
+
+ TfdRGB10A2 = class(TfdUniversal_UI1)
+ constructor Create; override;
+ end;
+
+ TfdRGBA12 = class(TfdRGBA_US4)
+ constructor Create; override;
+ end;
+
+ TfdRGBA16 = class(TfdRGBA_US4)
+ constructor Create; override;
+ end;
+
+ TfdBGR4 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdB5G6R5 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdBGR5 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdBGR8 = class(TfdBGR_UB3)
+ constructor Create; override;
+ end;
+
+ TfdBGR10 = class(TfdUniversal_UI1)
+ constructor Create; override;
+ end;
+
+ TfdBGR12 = class(TfdBGR_US3)
+ constructor Create; override;
+ end;
+
+ TfdBGR16 = class(TfdBGR_US3)
+ constructor Create; override;
+ end;
+
+ TfdBGRA2 = class(TfdBGRA_UB4)
+ constructor Create; override;
+ end;
+
+ TfdBGRA4 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdBGR5A1 = class(TfdUniversal_US1)
+ constructor Create; override;
+ end;
+
+ TfdBGRA8 = class(TfdBGRA_UB4)
+ constructor Create; override;
+ end;
+
+ TfdBGR10A2 = class(TfdUniversal_UI1)
+ constructor Create; override;
+ end;
+
+ TfdBGRA12 = class(TfdBGRA_US4)
+ constructor Create; override;
+ end;
+
+ TfdBGRA16 = class(TfdBGRA_US4)
+ constructor Create; override;
+ end;
+
+ TfdDepth16 = class(TfdDepth_US1)
+ constructor Create; override;
+ end;
+
+ TfdDepth24 = class(TfdDepth_UI1)
+ constructor Create; override;
+ end;
+
+ TfdDepth32 = class(TfdDepth_UI1)
+ constructor Create; override;
+ end;
+
+ TfdS3tcDtx1RGBA = class(TFormatDescriptor)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdS3tcDtx3RGBA = class(TFormatDescriptor)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+ TfdS3tcDtx5RGBA = class(TFormatDescriptor)
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ constructor Create; override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TbmpBitfieldFormat = class(TFormatDescriptor)
+ private
+ procedure SetRedMask (const aValue: QWord);
+ procedure SetGreenMask(const aValue: QWord);
+ procedure SetBlueMask (const aValue: QWord);
+ procedure SetAlphaMask(const aValue: QWord);
+
+ procedure Update(aMask: QWord; out aRange: Cardinal; out aShift: Byte);
+ public
+ property RedMask: QWord read GetRedMask write SetRedMask;
+ property GreenMask: QWord read GetGreenMask write SetGreenMask;
+ property BlueMask: QWord read GetBlueMask write SetBlueMask;
+ property AlphaMask: QWord read GetAlphaMask write SetAlphaMask;
+
+ property PixelSize: Single read fPixelSize write fPixelSize;
+
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ TbmpColorTableEnty = packed record
+ b, g, r, a: Byte;
+ end;
+ TbmpColorTable = array of TbmpColorTableEnty;
+ TbmpColorTableFormat = class(TFormatDescriptor)
+ private
+ fColorTable: TbmpColorTable;
+ public
+ property PixelSize: Single read fPixelSize write fPixelSize;
+ property ColorTable: TbmpColorTable read fColorTable write fColorTable;
+ property Range: TglBitmapColorRec read fRange write fRange;
+ property Shift: TShiftRec read fShift write fShift;
+ property Format: TglBitmapFormat read fFormat write fFormat;
+
+ procedure CreateColorTable;
+
+ procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
+ procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
+ destructor Destroy; override;
+ end;
+
+const
+ LUMINANCE_WEIGHT_R = 0.30;
+ LUMINANCE_WEIGHT_G = 0.59;
+ LUMINANCE_WEIGHT_B = 0.11;
+
+ ALPHA_WEIGHT_R = 0.30;
+ ALPHA_WEIGHT_G = 0.59;
+ ALPHA_WEIGHT_B = 0.11;
+
+ DEPTH_WEIGHT_R = 0.333333333;
+ DEPTH_WEIGHT_G = 0.333333333;
+ DEPTH_WEIGHT_B = 0.333333333;
+
+ UNSUPPORTED_FORMAT = 'the given format isn''t supported by this function.';
+
+ FORMAT_DESCRIPTOR_CLASSES: array[TglBitmapFormat] of TFormatDescriptorClass = (
+ TfdEmpty,
+
+ TfdAlpha4,
+ TfdAlpha8,
+ TfdAlpha12,
+ TfdAlpha16,
+
+ TfdLuminance4,
+ TfdLuminance8,
+ TfdLuminance12,
+ TfdLuminance16,
+
+ TfdLuminance4Alpha4,
+ TfdLuminance6Alpha2,
+ TfdLuminance8Alpha8,
+ TfdLuminance12Alpha4,
+ TfdLuminance12Alpha12,
+ TfdLuminance16Alpha16,
+
+ TfdR3G3B2,
+ TfdRGB4,
+ TfdR5G6B5,
+ TfdRGB5,
+ TfdRGB8,
+ TfdRGB10,
+ TfdRGB12,
+ TfdRGB16,
+
+ TfdRGBA2,
+ TfdRGBA4,
+ TfdRGB5A1,
+ TfdRGBA8,
+ TfdRGB10A2,
+ TfdRGBA12,
+ TfdRGBA16,
+
+ TfdBGR4,
+ TfdB5G6R5,
+ TfdBGR5,
+ TfdBGR8,
+ TfdBGR10,
+ TfdBGR12,
+ TfdBGR16,
+
+ TfdBGRA2,
+ TfdBGRA4,
+ TfdBGR5A1,
+ TfdBGRA8,
+ TfdBGR10A2,
+ TfdBGRA12,
+ TfdBGRA16,
+
+ TfdDepth16,
+ TfdDepth24,
+ TfdDepth32,
+
+ TfdS3tcDtx1RGBA,
+ TfdS3tcDtx3RGBA,
+ TfdS3tcDtx5RGBA
+ );
+
+var
+ FormatDescriptorCS: TCriticalSection;
+ FormatDescriptors: array[TglBitmapFormat] of TFormatDescriptor;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor EglBitmapUnsupportedFormat.Create(const aFormat: TglBitmapFormat);
+begin
+ inherited Create('unsupported format: ' + GetEnumName(TypeInfo(TglBitmapFormat), Integer(aFormat)));
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor EglBitmapUnsupportedFormat.Create(const aMsg: String; const aFormat: TglBitmapFormat);
+begin
+ inherited Create(aMsg + GetEnumName(TypeInfo(TglBitmapFormat), Integer(aFormat)));
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapPosition(X, Y: Integer): TglBitmapPixelPosition;
+begin
+ result.Fields := [];
+
+ if X >= 0 then
+ result.Fields := result.Fields + [ffX];
+ if Y >= 0 then
+ result.Fields := result.Fields + [ffY];
+
+ result.X := Max(0, X);
+ result.Y := Max(0, Y);
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
+begin
+ result.r := r;
+ result.g := g;
+ result.b := b;
+ result.a := a;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
+var
+ i: Integer;
+begin
+ result := false;
+ for i := 0 to high(r1.arr) do
+ if (r1.arr[i] <> r2.arr[i]) then
+ exit;
+ result := true;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapShiftRec(const r, g, b, a: Byte): TShiftRec;
+begin
+ result.r := r;
+ result.g := g;
+ result.b := b;
+ result.a := a;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function FormatGetSupportedFiles(const aFormat: TglBitmapFormat): TglBitmapFileTypes;
+begin
+ result := [];
+
+ if (aFormat in [
+ //4 bbp
+ tfLuminance4,
+
+ //8bpp
+ tfR3G3B2, tfLuminance8,
+
+ //16bpp
+ tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
+ tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4,
+
+ //24bpp
+ tfBGR8, tfRGB8,
+
+ //32bpp
+ tfRGB10, tfRGB10A2, tfRGBA8,
+ tfBGR10, tfBGR10A2, tfBGRA8]) then
+ result := result + [ftBMP];
+
+ if (aFormat in [
+ //8 bpp
+ tfLuminance8, tfAlpha8,
+
+ //16 bpp
+ tfLuminance16, tfLuminance8Alpha8,
+ tfRGB5, tfRGB5A1, tfRGBA4,
+ tfBGR5, tfBGR5A1, tfBGRA4,
+
+ //24 bpp
+ tfRGB8, tfBGR8,
+
+ //32 bpp
+ tfRGB10A2, tfRGBA8, tfBGR10A2, tfBGRA8]) then
+ result := result + [ftTGA];
+
+ if (aFormat in [
+ //8 bpp
+ tfAlpha8, tfLuminance8, tfLuminance4Alpha4, tfLuminance6Alpha2,
+ tfR3G3B2, tfRGBA2, tfBGRA2,
+
+ //16 bpp
+ tfAlpha16, tfLuminance16, tfLuminance8Alpha8, tfLuminance12Alpha4,
+ tfRGB4, tfR5G6B5, tfRGB5, tfRGBA4, tfRGB5A1,
+ tfBGR4, tfB5G6R5, tfBGR5, tfBGRA4, tfBGR5A1,
+
+ //24 bpp
+ tfRGB8, tfBGR8,
+
+ //32 bbp
+ tfLuminance16Alpha16,
+ tfRGBA8, tfRGB10A2,
+ tfBGRA8, tfBGR10A2,
+
+ //compressed
+ tfS3tcDtx1RGBA, tfS3tcDtx3RGBA, tfS3tcDtx5RGBA]) then
+ result := result + [ftDDS];
+
+ {$IFDEF GLB_SUPPORT_PNG_WRITE}
+ if aFormat in [
+ tfAlpha8, tfLuminance8, tfLuminance8Alpha8,
+ tfRGB8, tfRGBA8,
+ tfBGR8, tfBGRA8] then
+ result := result + [ftPNG];
+ {$ENDIF}
+
+ {$IFDEF GLB_SUPPORT_JPEG_WRITE}
+ if aFormat in [tfAlpha8, tfLuminance8, tfRGB8, tfBGR8] then
+ result := result + [ftJPEG];
+ {$ENDIF}
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function IsPowerOfTwo(aNumber: Integer): Boolean;
+begin
+ while (aNumber and 1) = 0 do
+ aNumber := aNumber shr 1;
+ result := aNumber = 1;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function GetTopMostBit(aBitSet: QWord): Integer;
+begin
+ result := 0;
+ while aBitSet > 0 do begin
+ inc(result);
+ aBitSet := aBitSet shr 1;
+ end;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function CountSetBits(aBitSet: QWord): Integer;
+begin
+ result := 0;
+ while aBitSet > 0 do begin
+ if (aBitSet and 1) = 1 then
+ inc(result);
+ aBitSet := aBitSet shr 1;
+ end;
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function LuminanceWeight(const aPixel: TglBitmapPixelData): Cardinal;
+begin
+ result := Trunc(
+ LUMINANCE_WEIGHT_R * aPixel.Data.r +
+ LUMINANCE_WEIGHT_G * aPixel.Data.g +
+ LUMINANCE_WEIGHT_B * aPixel.Data.b);
+end;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function DepthWeight(const aPixel: TglBitmapPixelData): Cardinal;
+begin
+ result := Trunc(
+ DEPTH_WEIGHT_R * aPixel.Data.r +
+ DEPTH_WEIGHT_G * aPixel.Data.g +
+ DEPTH_WEIGHT_B * aPixel.Data.b);
+end;
+
+{$IFDEF GLB_NATIVE_OGL}
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//OpenGLInitialization///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+var
+ GL_LibHandle: Pointer = nil;
+
+function glbGetProcAddress(aProcName: PAnsiChar; aLibHandle: Pointer = nil; const aRaiseOnErr: Boolean = true): Pointer;
+begin
+ if not Assigned(aLibHandle) then
+ aLibHandle := GL_LibHandle;
+
+{$IF DEFINED(GLB_WIN)}
+ result := GetProcAddress({%H-}HMODULE(aLibHandle), aProcName);
+ if Assigned(result) then
+ exit;
+
+ if Assigned(wglGetProcAddress) then
+ result := wglGetProcAddress(aProcName);
+{$ELSEIF DEFINED(GLB_LINUX)}
+ if Assigned(glXGetProcAddress) then begin
+ result := glXGetProcAddress(aProcName);
+ if Assigned(result) then
+ exit;
+ end;
+
+ if Assigned(glXGetProcAddressARB) then begin
+ result := glXGetProcAddressARB(aProcName);
+ if Assigned(result) then
+ exit;
+ end;
+
+ result := dlsym(aLibHandle, aProcName);
+{$IFEND}
+ if not Assigned(result) and aRaiseOnErr then
+ raise EglBitmap.Create('unable to load procedure form library: ' + aProcName);
+end;
+
+{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+var
+ GLU_LibHandle: Pointer = nil;
+ OpenGLInitialized: Boolean;
+ InitOpenGLCS: TCriticalSection;
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glbInitOpenGL;
+
+ ////////////////////////////////////////////////////////////////////////////////
+ function glbLoadLibrary(const aName: PChar): Pointer;
+ begin
+ {$IF DEFINED(GLB_WIN)}
+ result := {%H-}Pointer(LoadLibrary(aName));
+ {$ELSEIF DEFINED(GLB_LINUX)}
+ result := dlopen(Name, RTLD_LAZY);
+ {$ELSE}
+ result := nil;
+ {$IFEND}
+ end;
+
+ ////////////////////////////////////////////////////////////////////////////////
+ function glbFreeLibrary(const aLibHandle: Pointer): Boolean;
+ begin
+ result := false;
+ if not Assigned(aLibHandle) then
+ exit;
+
+ {$IF DEFINED(GLB_WIN)}
+ Result := FreeLibrary({%H-}HINST(aLibHandle));
+ {$ELSEIF DEFINED(GLB_LINUX)}
+ Result := dlclose(aLibHandle) = 0;
+ {$IFEND}
+ end;
+
+begin
+ if Assigned(GL_LibHandle) then
+ glbFreeLibrary(GL_LibHandle);
+
+ if Assigned(GLU_LibHandle) then
+ glbFreeLibrary(GLU_LibHandle);
+
+ GL_LibHandle := glbLoadLibrary(libopengl);
+ if not Assigned(GL_LibHandle) then
+ raise EglBitmap.Create('unable to load library: ' + libopengl);
+
+ GLU_LibHandle := glbLoadLibrary(libglu);
+ if not Assigned(GLU_LibHandle) then
+ raise EglBitmap.Create('unable to load library: ' + libglu);
+
+{$IF DEFINED(GLB_WIN)}
+ wglGetProcAddress := glbGetProcAddress('wglGetProcAddress');
+{$ELSEIF DEFINED(GLB_LINUX)}
+ glXGetProcAddress := glbGetProcAddress('glXGetProcAddress');
+ glXGetProcAddressARB := glbGetProcAddress('glXGetProcAddressARB');
+{$IFEND}
+
+ glEnable := glbGetProcAddress('glEnable');
+ glDisable := glbGetProcAddress('glDisable');
+ glGetString := glbGetProcAddress('glGetString');
+ glGetIntegerv := glbGetProcAddress('glGetIntegerv');
+ glTexParameteri := glbGetProcAddress('glTexParameteri');
+ glTexParameteriv := glbGetProcAddress('glTexParameteriv');
+ glTexParameterfv := glbGetProcAddress('glTexParameterfv');
+ glGetTexParameteriv := glbGetProcAddress('glGetTexParameteriv');
+ glGetTexParameterfv := glbGetProcAddress('glGetTexParameterfv');
+ glGetTexLevelParameteriv := glbGetProcAddress('glGetTexLevelParameteriv');
+ glGetTexLevelParameterfv := glbGetProcAddress('glGetTexLevelParameterfv');
+ glTexGeni := glbGetProcAddress('glTexGeni');
+ glGenTextures := glbGetProcAddress('glGenTextures');
+ glBindTexture := glbGetProcAddress('glBindTexture');
+ glDeleteTextures := glbGetProcAddress('glDeleteTextures');
+ glAreTexturesResident := glbGetProcAddress('glAreTexturesResident');
+ glReadPixels := glbGetProcAddress('glReadPixels');
+ glPixelStorei := glbGetProcAddress('glPixelStorei');
+ glTexImage1D := glbGetProcAddress('glTexImage1D');
+ glTexImage2D := glbGetProcAddress('glTexImage2D');
+ glGetTexImage := glbGetProcAddress('glGetTexImage');
+
+ gluBuild1DMipmaps := glbGetProcAddress('gluBuild1DMipmaps', GLU_LibHandle);
+ gluBuild2DMipmaps := glbGetProcAddress('gluBuild2DMipmaps', GLU_LibHandle);
+end;
+{$ENDIF}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glbReadOpenGLExtensions;
+var
+ Buffer: AnsiString;
+ MajorVersion, MinorVersion: Integer;
+
+ ///////////////////////////////////////////////////////////////////////////////////////////
+ procedure TrimVersionString(aBuffer: AnsiString; out aMajor, aMinor: Integer);
+ var
+ Separator: Integer;
+ begin
+ aMinor := 0;
+ aMajor := 0;
+
+ Separator := Pos(AnsiString('.'), aBuffer);
+ if (Separator > 1) and (Separator < Length(aBuffer)) and
+ (aBuffer[Separator - 1] in ['0'..'9']) and
+ (aBuffer[Separator + 1] in ['0'..'9']) then begin
+
+ Dec(Separator);
+ while (Separator > 0) and (aBuffer[Separator] in ['0'..'9']) do
+ Dec(Separator);
+
+ Delete(aBuffer, 1, Separator);
+ Separator := Pos(AnsiString('.'), aBuffer) + 1;
+
+ while (Separator <= Length(aBuffer)) and (AnsiChar(aBuffer[Separator]) in ['0'..'9']) do
+ Inc(Separator);
+
+ Delete(aBuffer, Separator, 255);
+ Separator := Pos(AnsiString('.'), aBuffer);
+
+ aMajor := StrToInt(Copy(String(aBuffer), 1, Separator - 1));
+ aMinor := StrToInt(Copy(String(aBuffer), Separator + 1, 1));
+ end;
+ end;
+
+ ///////////////////////////////////////////////////////////////////////////////////////////
+ function CheckExtension(const Extension: AnsiString): Boolean;
+ var
+ ExtPos: Integer;
+ begin
+ ExtPos := Pos(Extension, Buffer);
+ result := ExtPos > 0;
+ if result then
+ result := ((ExtPos + Length(Extension) - 1) = Length(Buffer)) or not (Buffer[ExtPos + Length(Extension)] in ['_', 'A'..'Z', 'a'..'z']);
+ end;
+
+ ///////////////////////////////////////////////////////////////////////////////////////////
+ function CheckVersion(const aMajor, aMinor: Integer): Boolean;
+ begin
+ result := (MajorVersion > aMajor) or ((MajorVersion = aMajor) and (MinorVersion >= aMinor));
+ end;
+
+begin
+{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+ InitOpenGLCS.Enter;
+ try
+ if not OpenGLInitialized then begin
+ glbInitOpenGL;
+ OpenGLInitialized := true;
+ end;
+ finally
+ InitOpenGLCS.Leave;
+ end;
+{$ENDIF}
+
+ // Version
+ Buffer := glGetString(GL_VERSION);
+ TrimVersionString(Buffer, MajorVersion, MinorVersion);
+
+ GL_VERSION_1_2 := CheckVersion(1, 2);
+ GL_VERSION_1_3 := CheckVersion(1, 3);
+ GL_VERSION_1_4 := CheckVersion(1, 4);
+ GL_VERSION_2_0 := CheckVersion(2, 0);
+ GL_VERSION_3_3 := CheckVersion(3, 3);
+
+ // Extensions
+ Buffer := glGetString(GL_EXTENSIONS);
+ GL_ARB_texture_border_clamp := CheckExtension('GL_ARB_texture_border_clamp');
+ GL_ARB_texture_non_power_of_two := CheckExtension('GL_ARB_texture_non_power_of_two');
+ GL_ARB_texture_swizzle := CheckExtension('GL_ARB_texture_swizzle');
+ GL_ARB_texture_cube_map := CheckExtension('GL_ARB_texture_cube_map');
+ GL_ARB_texture_rectangle := CheckExtension('GL_ARB_texture_rectangle');
+ GL_ARB_texture_mirrored_repeat := CheckExtension('GL_ARB_texture_mirrored_repeat');
+ GL_EXT_texture_edge_clamp := CheckExtension('GL_EXT_texture_edge_clamp');
+ GL_EXT_texture_filter_anisotropic := CheckExtension('GL_EXT_texture_filter_anisotropic');
+ GL_EXT_texture_rectangle := CheckExtension('GL_EXT_texture_rectangle');
+ GL_EXT_texture_swizzle := CheckExtension('GL_EXT_texture_swizzle');
+ GL_EXT_texture_cube_map := CheckExtension('GL_EXT_texture_cube_map');
+ GL_NV_texture_rectangle := CheckExtension('GL_NV_texture_rectangle');
+ GL_IBM_texture_mirrored_repeat := CheckExtension('GL_IBM_texture_mirrored_repeat');
+ GL_SGIS_generate_mipmap := CheckExtension('GL_SGIS_generate_mipmap');
+
+ if GL_VERSION_1_3 then begin
+ glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1D');
+ glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2D');
+ glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImage');
+ end else begin
+ glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1DARB', nil, false);
+ glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2DARB', nil, false);
+ glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImageARB', nil, false);
+ end;
+end;
+{$ENDIF}
+
+{$IFDEF GLB_SDL_IMAGE}
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// SDL Image Helper /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapRWseek(context: PSDL_RWops; offset: Integer; whence: Integer): Integer; cdecl;
+begin
+ result := TStream(context^.unknown.data1).Seek(offset, whence);
+end;
+
+function glBitmapRWread(context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer): Integer; cdecl;
+begin
+ result := TStream(context^.unknown.data1).Read(Ptr^, size * maxnum);
+end;
+
+function glBitmapRWwrite(context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer): Integer; cdecl;
+begin
+ result := TStream(context^.unknown.data1).Write(Ptr^, size * num);
+end;
+
+function glBitmapRWclose(context: PSDL_RWops): Integer; cdecl;
+begin
+ result := 0;
+end;
+
+function glBitmapCreateRWops(Stream: TStream): PSDL_RWops;
+begin
+ result := SDL_AllocRW;
+
+ if result = nil then
+ raise EglBitmapException.Create('glBitmapCreateRWops - SDL_AllocRW failed.');
+
+ result^.seek := glBitmapRWseek;
+ result^.read := glBitmapRWread;
+ result^.write := glBitmapRWwrite;
+ result^.close := glBitmapRWclose;
+ result^.unknown.data1 := Stream;
+end;
+{$ENDIF}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
+begin
+ glBitmapDefaultDeleteTextureOnFree := aDeleteTextureOnFree;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
+begin
+ glBitmapDefaultFreeDataAfterGenTextures := aFreeData;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
+begin
+ glBitmapDefaultMipmap := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
+begin
+ glBitmapDefaultFormat := aFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
+begin
+ glBitmapDefaultFilterMin := aMin;
+ glBitmapDefaultFilterMag := aMag;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultWrap(const S: Cardinal = GL_CLAMP_TO_EDGE; const T: Cardinal = GL_CLAMP_TO_EDGE; const R: Cardinal = GL_CLAMP_TO_EDGE);
+begin
+ glBitmapDefaultWrapS := S;
+ glBitmapDefaultWrapT := T;
+ glBitmapDefaultWrapR := R;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapSetDefaultSwizzle(const r: GLenum = GL_RED; g: GLenum = GL_GREEN; b: GLenum = GL_BLUE; a: GLenum = GL_ALPHA);
+begin
+ glDefaultSwizzle[0] := r;
+ glDefaultSwizzle[1] := g;
+ glDefaultSwizzle[2] := b;
+ glDefaultSwizzle[3] := a;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
+begin
+ result := glBitmapDefaultDeleteTextureOnFree;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
+begin
+ result := glBitmapDefaultFreeDataAfterGenTextures;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapGetDefaultMipmap: TglBitmapMipMap;
+begin
+ result := glBitmapDefaultMipmap;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmapGetDefaultFormat: TglBitmapFormat;
+begin
+ result := glBitmapDefaultFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapGetDefaultFilter(var aMin, aMag: GLenum);
+begin
+ aMin := glBitmapDefaultFilterMin;
+ aMag := glBitmapDefaultFilterMag;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapGetDefaultTextureWrap(var S, T, R: GLenum);
+begin
+ S := glBitmapDefaultWrapS;
+ T := glBitmapDefaultWrapT;
+ R := glBitmapDefaultWrapR;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapGetDefaultSwizzle(var r, g, b, a: GLenum);
+begin
+ r := glDefaultSwizzle[0];
+ g := glDefaultSwizzle[1];
+ b := glDefaultSwizzle[2];
+ a := glDefaultSwizzle[3];
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetRedMask: QWord;
+begin
+ result := fRange.r shl fShift.r;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetGreenMask: QWord;
+begin
+ result := fRange.g shl fShift.g;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetBlueMask: QWord;
+begin
+ result := fRange.b shl fShift.b;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetAlphaMask: QWord;
+begin
+ result := fRange.a shl fShift.a;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetIsCompressed: Boolean;
+begin
+ result := fIsCompressed;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetHasRed: Boolean;
+begin
+ result := (fRange.r > 0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetHasGreen: Boolean;
+begin
+ result := (fRange.g > 0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetHasBlue: Boolean;
+begin
+ result := (fRange.b > 0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetHasAlpha: Boolean;
+begin
+ result := (fRange.a > 0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetglFormat: GLenum;
+begin
+ result := fglFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetglInternalFormat: GLenum;
+begin
+ result := fglInternalFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetglDataFormat: GLenum;
+begin
+ result := fglDataFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetComponents: Integer;
+var
+ i: Integer;
+begin
+ result := 0;
+ for i := 0 to 3 do
+ if (fRange.arr[i] > 0) then
+ inc(result);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetSize(const aSize: TglBitmapPixelPosition): Integer;
+var
+ w, h: Integer;
+begin
+ if (ffX in aSize.Fields) or (ffY in aSize.Fields) then begin
+ w := Max(1, aSize.X);
+ h := Max(1, aSize.Y);
+ result := GetSize(w, h);
+ end else
+ result := 0;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.GetSize(const aWidth, aHeight: Integer): Integer;
+begin
+ result := 0;
+ if (aWidth <= 0) or (aHeight <= 0) then
+ exit;
+ result := Ceil(aWidth * aHeight * fPixelSize);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.CreateMappingData: Pointer;
+begin
+ result := nil;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TFormatDescriptor.FreeMappingData(var aMappingData: Pointer);
+begin
+ //DUMMY
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.IsEmpty: Boolean;
+begin
+ result := (fFormat = tfEmpty);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TFormatDescriptor.MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean;
+begin
+ result := false;
+ if (aRedMask = 0) and (aGreenMask = 0) and (aBlueMask = 0) and (aAlphaMask = 0) then
+ raise EglBitmap.Create('FormatCheckFormat - All Masks are 0');
+ if (aRedMask <> RedMask) then
+ exit;
+ if (aGreenMask <> GreenMask) then
+ exit;
+ if (aBlueMask <> BlueMask) then
+ exit;
+ if (aAlphaMask <> AlphaMask) then
+ exit;
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TFormatDescriptor.PreparePixel(out aPixel: TglBitmapPixelData);
+begin
+ FillChar(aPixel{%H-}, SizeOf(aPixel), 0);
+ aPixel.Data := fRange;
+ aPixel.Range := fRange;
+ aPixel.Format := fFormat;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TFormatDescriptor.Create;
+begin
+ inherited Create;
+
+ fFormat := tfEmpty;
+ fWithAlpha := tfEmpty;
+ fWithoutAlpha := tfEmpty;
+ fRGBInverted := tfEmpty;
+ fUncompressed := tfEmpty;
+ fPixelSize := 0.0;
+ fIsCompressed := false;
+
+ fglFormat := 0;
+ fglInternalFormat := 0;
+ fglDataFormat := 0;
+
+ FillChar(fRange, 0, SizeOf(fRange));
+ FillChar(fShift, 0, SizeOf(fShift));
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdAlpha_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdAlpha_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ aData^ := aPixel.Data.a;
+ inc(aData);
+end;
+
+procedure TfdAlpha_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := 0;
+ aPixel.Data.g := 0;
+ aPixel.Data.b := 0;
+ aPixel.Data.a := aData^;
+ inc(aData);
+end;
+
+constructor TfdAlpha_UB1.Create;
+begin
+ inherited Create;
+ fPixelSize := 1.0;
+ fRange.a := $FF;
+ fglFormat := GL_ALPHA;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdLuminance_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdLuminance_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ aData^ := LuminanceWeight(aPixel);
+ inc(aData);
+end;
+
+procedure TfdLuminance_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := aData^;
+ aPixel.Data.g := aData^;
+ aPixel.Data.b := aData^;
+ aPixel.Data.a := 0;
+ inc(aData);
+end;
+
+constructor TfdLuminance_UB1.Create;
+begin
+ inherited Create;
+ fPixelSize := 1.0;
+ fRange.r := $FF;
+ fRange.g := $FF;
+ fRange.b := $FF;
+ fglFormat := GL_LUMINANCE;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdUniversal_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdUniversal_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ aData^ := 0;
+ for i := 0 to 3 do
+ if (fRange.arr[i] > 0) then
+ aData^ := aData^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
+ inc(aData);
+end;
+
+procedure TfdUniversal_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ for i := 0 to 3 do
+ aPixel.Data.arr[i] := (aData^ shr fShift.arr[i]) and fRange.arr[i];
+ inc(aData);
+end;
+
+constructor TfdUniversal_UB1.Create;
+begin
+ inherited Create;
+ fPixelSize := 1.0;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdLuminanceAlpha_UB2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdLuminanceAlpha_UB2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ aData^ := aPixel.Data.a;
+ inc(aData);
+end;
+
+procedure TfdLuminanceAlpha_UB2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := aData^;
+ inc(aData);
+end;
+
+constructor TfdLuminanceAlpha_UB2.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fRange.a := $FF;
+ fShift.a := 8;
+ fglFormat := GL_LUMINANCE_ALPHA;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdRGB_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdRGB_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ aData^ := aPixel.Data.r;
+ inc(aData);
+ aData^ := aPixel.Data.g;
+ inc(aData);
+ aData^ := aPixel.Data.b;
+ inc(aData);
+end;
+
+procedure TfdRGB_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := aData^;
+ inc(aData);
+ aPixel.Data.g := aData^;
+ inc(aData);
+ aPixel.Data.b := aData^;
+ inc(aData);
+ aPixel.Data.a := 0;
+end;
+
+constructor TfdRGB_UB3.Create;
+begin
+ inherited Create;
+ fPixelSize := 3.0;
+ fRange.r := $FF;
+ fRange.g := $FF;
+ fRange.b := $FF;
+ fShift.r := 0;
+ fShift.g := 8;
+ fShift.b := 16;
+ fglFormat := GL_RGB;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdBGR_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdBGR_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ aData^ := aPixel.Data.b;
+ inc(aData);
+ aData^ := aPixel.Data.g;
+ inc(aData);
+ aData^ := aPixel.Data.r;
+ inc(aData);
+end;
+
+procedure TfdBGR_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.b := aData^;
+ inc(aData);
+ aPixel.Data.g := aData^;
+ inc(aData);
+ aPixel.Data.r := aData^;
+ inc(aData);
+ aPixel.Data.a := 0;
+end;
+
+constructor TfdBGR_UB3.Create;
+begin
+ fPixelSize := 3.0;
+ fRange.r := $FF;
+ fRange.g := $FF;
+ fRange.b := $FF;
+ fShift.r := 16;
+ fShift.g := 8;
+ fShift.b := 0;
+ fglFormat := GL_BGR;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TdfRGBA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdRGBA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ aData^ := aPixel.Data.a;
+ inc(aData);
+end;
+
+procedure TfdRGBA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := aData^;
+ inc(aData);
+end;
+
+constructor TfdRGBA_UB4.Create;
+begin
+ inherited Create;
+ fPixelSize := 4.0;
+ fRange.a := $FF;
+ fShift.a := 24;
+ fglFormat := GL_RGBA;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdBGRA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdBGRA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ aData^ := aPixel.Data.a;
+ inc(aData);
+end;
+
+procedure TfdBGRA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := aData^;
+ inc(aData);
+end;
+
+constructor TfdBGRA_UB4.Create;
+begin
+ inherited Create;
+ fPixelSize := 4.0;
+ fRange.a := $FF;
+ fShift.a := 24;
+ fglFormat := GL_BGRA;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdAlpha_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdAlpha_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PWord(aData)^ := aPixel.Data.a;
+ inc(aData, 2);
+end;
+
+procedure TfdAlpha_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := 0;
+ aPixel.Data.g := 0;
+ aPixel.Data.b := 0;
+ aPixel.Data.a := PWord(aData)^;
+ inc(aData, 2);
+end;
+
+constructor TfdAlpha_US1.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fRange.a := $FFFF;
+ fglFormat := GL_ALPHA;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdLuminance_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdLuminance_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PWord(aData)^ := LuminanceWeight(aPixel);
+ inc(aData, 2);
+end;
+
+procedure TfdLuminance_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := PWord(aData)^;
+ aPixel.Data.g := PWord(aData)^;
+ aPixel.Data.b := PWord(aData)^;
+ aPixel.Data.a := 0;
+ inc(aData, 2);
+end;
+
+constructor TfdLuminance_US1.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fRange.r := $FFFF;
+ fRange.g := $FFFF;
+ fRange.b := $FFFF;
+ fglFormat := GL_LUMINANCE;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdUniversal_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdUniversal_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ PWord(aData)^ := 0;
+ for i := 0 to 3 do
+ if (fRange.arr[i] > 0) then
+ PWord(aData)^ := PWord(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
+ inc(aData, 2);
+end;
+
+procedure TfdUniversal_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ for i := 0 to 3 do
+ aPixel.Data.arr[i] := (PWord(aData)^ shr fShift.arr[i]) and fRange.arr[i];
+ inc(aData, 2);
+end;
+
+constructor TfdUniversal_US1.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdDepth_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdDepth_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PWord(aData)^ := DepthWeight(aPixel);
+ inc(aData, 2);
+end;
+
+procedure TfdDepth_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := PWord(aData)^;
+ aPixel.Data.g := PWord(aData)^;
+ aPixel.Data.b := PWord(aData)^;
+ aPixel.Data.a := 0;
+ inc(aData, 2);
+end;
+
+constructor TfdDepth_US1.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fRange.r := $FFFF;
+ fRange.g := $FFFF;
+ fRange.b := $FFFF;
+ fglFormat := GL_DEPTH_COMPONENT;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdLuminanceAlpha_US2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdLuminanceAlpha_US2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ PWord(aData)^ := aPixel.Data.a;
+ inc(aData, 2);
+end;
+
+procedure TfdLuminanceAlpha_US2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := PWord(aData)^;
+ inc(aData, 2);
+end;
+
+constructor TfdLuminanceAlpha_US2.Create;
+begin
+ inherited Create;
+ fPixelSize := 4.0;
+ fRange.a := $FFFF;
+ fShift.a := 16;
+ fglFormat := GL_LUMINANCE_ALPHA;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdRGB_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdRGB_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PWord(aData)^ := aPixel.Data.r;
+ inc(aData, 2);
+ PWord(aData)^ := aPixel.Data.g;
+ inc(aData, 2);
+ PWord(aData)^ := aPixel.Data.b;
+ inc(aData, 2);
+end;
+
+procedure TfdRGB_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.g := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.b := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.a := 0;
+end;
+
+constructor TfdRGB_US3.Create;
+begin
+ inherited Create;
+ fPixelSize := 6.0;
+ fRange.r := $FFFF;
+ fRange.g := $FFFF;
+ fRange.b := $FFFF;
+ fShift.r := 0;
+ fShift.g := 16;
+ fShift.b := 32;
+ fglFormat := GL_RGB;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdBGR_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdBGR_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PWord(aData)^ := aPixel.Data.b;
+ inc(aData, 2);
+ PWord(aData)^ := aPixel.Data.g;
+ inc(aData, 2);
+ PWord(aData)^ := aPixel.Data.r;
+ inc(aData, 2);
+end;
+
+procedure TfdBGR_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.b := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.g := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.r := PWord(aData)^;
+ inc(aData, 2);
+ aPixel.Data.a := 0;
+end;
+
+constructor TfdBGR_US3.Create;
+begin
+ inherited Create;
+ fPixelSize := 6.0;
+ fRange.r := $FFFF;
+ fRange.g := $FFFF;
+ fRange.b := $FFFF;
+ fShift.r := 32;
+ fShift.g := 16;
+ fShift.b := 0;
+ fglFormat := GL_BGR;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdRGBA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdRGBA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ PWord(aData)^ := aPixel.Data.a;
+ inc(aData, 2);
+end;
+
+procedure TfdRGBA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := PWord(aData)^;
+ inc(aData, 2);
+end;
+
+constructor TfdRGBA_US4.Create;
+begin
+ inherited Create;
+ fPixelSize := 8.0;
+ fRange.a := $FFFF;
+ fShift.a := 48;
+ fglFormat := GL_RGBA;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdBGRA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdBGRA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ inherited Map(aPixel, aData, aMapData);
+ PWord(aData)^ := aPixel.Data.a;
+ inc(aData, 2);
+end;
+
+procedure TfdBGRA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ inherited Unmap(aData, aPixel, aMapData);
+ aPixel.Data.a := PWord(aData)^;
+ inc(aData, 2);
+end;
+
+constructor TfdBGRA_US4.Create;
+begin
+ inherited Create;
+ fPixelSize := 8.0;
+ fRange.a := $FFFF;
+ fShift.a := 48;
+ fglFormat := GL_BGRA;
+ fglDataFormat := GL_UNSIGNED_SHORT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdUniversal_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdUniversal_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ PCardinal(aData)^ := 0;
+ for i := 0 to 3 do
+ if (fRange.arr[i] > 0) then
+ PCardinal(aData)^ := PCardinal(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
+ inc(aData, 4);
+end;
+
+procedure TfdUniversal_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+var
+ i: Integer;
+begin
+ for i := 0 to 3 do
+ aPixel.Data.arr[i] := (PCardinal(aData)^ shr fShift.arr[i]) and fRange.arr[i];
+ inc(aData, 2);
+end;
+
+constructor TfdUniversal_UI1.Create;
+begin
+ inherited Create;
+ fPixelSize := 4.0;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdDepth_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdDepth_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ PCardinal(aData)^ := DepthWeight(aPixel);
+ inc(aData, 4);
+end;
+
+procedure TfdDepth_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ aPixel.Data.r := PCardinal(aData)^;
+ aPixel.Data.g := PCardinal(aData)^;
+ aPixel.Data.b := PCardinal(aData)^;
+ aPixel.Data.a := 0;
+ inc(aData, 4);
+end;
+
+constructor TfdDepth_UI1.Create;
+begin
+ inherited Create;
+ fPixelSize := 4.0;
+ fRange.r := $FFFFFFFF;
+ fRange.g := $FFFFFFFF;
+ fRange.b := $FFFFFFFF;
+ fglFormat := GL_DEPTH_COMPONENT;
+ fglDataFormat := GL_UNSIGNED_INT;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TfdAlpha4.Create;
+begin
+ inherited Create;
+ fFormat := tfAlpha4;
+ fWithAlpha := tfAlpha4;
+ fglInternalFormat := GL_ALPHA4;
+end;
+
+constructor TfdAlpha8.Create;
+begin
+ inherited Create;
+ fFormat := tfAlpha8;
+ fWithAlpha := tfAlpha8;
+ fglInternalFormat := GL_ALPHA8;
+end;
+
+constructor TfdAlpha12.Create;
+begin
+ inherited Create;
+ fFormat := tfAlpha12;
+ fWithAlpha := tfAlpha12;
+ fglInternalFormat := GL_ALPHA12;
+end;
+
+constructor TfdAlpha16.Create;
+begin
+ inherited Create;
+ fFormat := tfAlpha16;
+ fWithAlpha := tfAlpha16;
+ fglInternalFormat := GL_ALPHA16;
+end;
+
+constructor TfdLuminance4.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance4;
+ fWithAlpha := tfLuminance4Alpha4;
+ fWithoutAlpha := tfLuminance4;
+ fglInternalFormat := GL_LUMINANCE4;
+end;
+
+constructor TfdLuminance8.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance8;
+ fWithAlpha := tfLuminance8Alpha8;
+ fWithoutAlpha := tfLuminance8;
+ fglInternalFormat := GL_LUMINANCE8;
+end;
+
+constructor TfdLuminance12.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance12;
+ fWithAlpha := tfLuminance12Alpha12;
+ fWithoutAlpha := tfLuminance12;
+ fglInternalFormat := GL_LUMINANCE12;
+end;
+
+constructor TfdLuminance16.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance16;
+ fWithAlpha := tfLuminance16Alpha16;
+ fWithoutAlpha := tfLuminance16;
+ fglInternalFormat := GL_LUMINANCE16;
+end;
+
+constructor TfdLuminance4Alpha4.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance4Alpha4;
+ fWithAlpha := tfLuminance4Alpha4;
+ fWithoutAlpha := tfLuminance4;
+ fglInternalFormat := GL_LUMINANCE4_ALPHA4;
+end;
+
+constructor TfdLuminance6Alpha2.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance6Alpha2;
+ fWithAlpha := tfLuminance6Alpha2;
+ fWithoutAlpha := tfLuminance8;
+ fglInternalFormat := GL_LUMINANCE6_ALPHA2;
+end;
+
+constructor TfdLuminance8Alpha8.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance8Alpha8;
+ fWithAlpha := tfLuminance8Alpha8;
+ fWithoutAlpha := tfLuminance8;
+ fglInternalFormat := GL_LUMINANCE8_ALPHA8;
+end;
+
+constructor TfdLuminance12Alpha4.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance12Alpha4;
+ fWithAlpha := tfLuminance12Alpha4;
+ fWithoutAlpha := tfLuminance12;
+ fglInternalFormat := GL_LUMINANCE12_ALPHA4;
+end;
+
+constructor TfdLuminance12Alpha12.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance12Alpha12;
+ fWithAlpha := tfLuminance12Alpha12;
+ fWithoutAlpha := tfLuminance12;
+ fglInternalFormat := GL_LUMINANCE12_ALPHA12;
+end;
+
+constructor TfdLuminance16Alpha16.Create;
+begin
+ inherited Create;
+ fFormat := tfLuminance16Alpha16;
+ fWithAlpha := tfLuminance16Alpha16;
+ fWithoutAlpha := tfLuminance16;
+ fglInternalFormat := GL_LUMINANCE16_ALPHA16;
+end;
+
+constructor TfdR3G3B2.Create;
+begin
+ inherited Create;
+ fFormat := tfR3G3B2;
+ fWithAlpha := tfRGBA2;
+ fWithoutAlpha := tfR3G3B2;
+ fRange.r := $7;
+ fRange.g := $7;
+ fRange.b := $3;
+ fShift.r := 0;
+ fShift.g := 3;
+ fShift.b := 6;
+ fglFormat := GL_RGB;
+ fglInternalFormat := GL_R3_G3_B2;
+ fglDataFormat := GL_UNSIGNED_BYTE_2_3_3_REV;
+end;
+
+constructor TfdRGB4.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB4;
+ fWithAlpha := tfRGBA4;
+ fWithoutAlpha := tfRGB4;
+ fRGBInverted := tfBGR4;
+ fRange.r := $F;
+ fRange.g := $F;
+ fRange.b := $F;
+ fShift.r := 0;
+ fShift.g := 4;
+ fShift.b := 8;
+ fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB4;
+ fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
+end;
+
+constructor TfdR5G6B5.Create;
+begin
+ inherited Create;
+ fFormat := tfR5G6B5;
+ fWithAlpha := tfRGBA4;
+ fWithoutAlpha := tfR5G6B5;
+ fRGBInverted := tfB5G6R5;
+ fRange.r := $1F;
+ fRange.g := $3F;
+ fRange.b := $1F;
+ fShift.r := 0;
+ fShift.g := 5;
+ fShift.b := 11;
+ fglFormat := GL_RGB;
+ fglInternalFormat := GL_RGB565;
+ fglDataFormat := GL_UNSIGNED_SHORT_5_6_5_REV;
+end;
+
+constructor TfdRGB5.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB5;
+ fWithAlpha := tfRGB5A1;
+ fWithoutAlpha := tfRGB5;
+ fRGBInverted := tfBGR5;
+ fRange.r := $1F;
+ fRange.g := $1F;
+ fRange.b := $1F;
+ fShift.r := 0;
+ fShift.g := 5;
+ fShift.b := 10;
+ fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB5;
+ fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
+end;
+
+constructor TfdRGB8.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB8;
+ fWithAlpha := tfRGBA8;
+ fWithoutAlpha := tfRGB8;
+ fRGBInverted := tfBGR8;
+ fglInternalFormat := GL_RGB8;
+end;
+
+constructor TfdRGB10.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB10;
+ fWithAlpha := tfRGB10A2;
+ fWithoutAlpha := tfRGB10;
+ fRGBInverted := tfBGR10;
+ fRange.r := $3FF;
+ fRange.g := $3FF;
+ fRange.b := $3FF;
+ fShift.r := 0;
+ fShift.g := 10;
+ fShift.b := 20;
+ fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB10;
+ fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
+end;
+
+constructor TfdRGB12.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB12;
+ fWithAlpha := tfRGBA12;
+ fWithoutAlpha := tfRGB12;
+ fRGBInverted := tfBGR12;
+ fglInternalFormat := GL_RGB12;
+end;
+
+constructor TfdRGB16.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB16;
+ fWithAlpha := tfRGBA16;
+ fWithoutAlpha := tfRGB16;
+ fRGBInverted := tfBGR16;
+ fglInternalFormat := GL_RGB16;
+end;
+
+constructor TfdRGBA2.Create;
+begin
+ inherited Create;
+ fFormat := tfRGBA2;
+ fWithAlpha := tfRGBA2;
+ fWithoutAlpha := tfR3G3B2;
+ fRGBInverted := tfBGRA2;
+ fglInternalFormat := GL_RGBA2;
+end;
+
+constructor TfdRGBA4.Create;
+begin
+ inherited Create;
+ fFormat := tfRGBA4;
+ fWithAlpha := tfRGBA4;
+ fWithoutAlpha := tfRGB4;
+ fRGBInverted := tfBGRA4;
+ fRange.r := $F;
+ fRange.g := $F;
+ fRange.b := $F;
+ fRange.a := $F;
+ fShift.r := 0;
+ fShift.g := 4;
+ fShift.b := 8;
+ fShift.a := 12;
+ fglFormat := GL_RGBA;
+ fglInternalFormat := GL_RGBA4;
+ fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
+end;
+
+constructor TfdRGB5A1.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB5A1;
+ fWithAlpha := tfRGB5A1;
+ fWithoutAlpha := tfRGB5;
+ fRGBInverted := tfBGR5A1;
+ fRange.r := $1F;
+ fRange.g := $1F;
+ fRange.b := $1F;
+ fRange.a := $01;
+ fShift.r := 0;
+ fShift.g := 5;
+ fShift.b := 10;
+ fShift.a := 15;
+ fglFormat := GL_RGBA;
+ fglInternalFormat := GL_RGB5_A1;
+ fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
+end;
+
+constructor TfdRGBA8.Create;
+begin
+ inherited Create;
+ fFormat := tfRGBA8;
+ fWithAlpha := tfRGBA8;
+ fWithoutAlpha := tfRGB8;
+ fRGBInverted := tfBGRA8;
+ fglInternalFormat := GL_RGBA8;
+end;
+
+constructor TfdRGB10A2.Create;
+begin
+ inherited Create;
+ fFormat := tfRGB10A2;
+ fWithAlpha := tfRGB10A2;
+ fWithoutAlpha := tfRGB10;
+ fRGBInverted := tfBGR10A2;
+ fRange.r := $3FF;
+ fRange.g := $3FF;
+ fRange.b := $3FF;
+ fRange.a := $003;
+ fShift.r := 0;
+ fShift.g := 10;
+ fShift.b := 20;
+ fShift.a := 30;
+ fglFormat := GL_RGBA;
+ fglInternalFormat := GL_RGB10_A2;
+ fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
+end;
+
+constructor TfdRGBA12.Create;
+begin
+ inherited Create;
+ fFormat := tfRGBA12;
+ fWithAlpha := tfRGBA12;
+ fWithoutAlpha := tfRGB12;
+ fRGBInverted := tfBGRA12;
+ fglInternalFormat := GL_RGBA12;
+end;
+
+constructor TfdRGBA16.Create;
+begin
+ inherited Create;
+ fFormat := tfRGBA16;
+ fWithAlpha := tfRGBA16;
+ fWithoutAlpha := tfRGB16;
+ fRGBInverted := tfBGRA16;
+ fglInternalFormat := GL_RGBA16;
+end;
+
+constructor TfdBGR4.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fFormat := tfBGR4;
+ fWithAlpha := tfBGRA4;
+ fWithoutAlpha := tfBGR4;
+ fRGBInverted := tfRGB4;
+ fRange.r := $F;
+ fRange.g := $F;
+ fRange.b := $F;
+ fRange.a := $0;
+ fShift.r := 8;
+ fShift.g := 4;
+ fShift.b := 0;
+ fShift.a := 0;
+ fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB4;
+ fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TfdB5G6R5.Create;
+begin
+ inherited Create;
+ fFormat := tfB5G6R5;
+ fWithAlpha := tfBGRA4;
+ fWithoutAlpha := tfB5G6R5;
+ fRGBInverted := tfR5G6B5;
+ fRange.r := $1F;
+ fRange.g := $3F;
+ fRange.b := $1F;
+ fShift.r := 11;
+ fShift.g := 5;
+ fShift.b := 0;
+ fglFormat := GL_RGB; //B5G6R5 is only possible as R5G6B5 -> use reverted dataformat
+ fglInternalFormat := GL_RGB8;
+ fglDataFormat := GL_UNSIGNED_SHORT_5_6_5;
+end;
+
+constructor TfdBGR5.Create;
+begin
+ inherited Create;
+ fPixelSize := 2.0;
+ fFormat := tfBGR5;
+ fWithAlpha := tfBGR5A1;
+ fWithoutAlpha := tfBGR5;
+ fRGBInverted := tfRGB5;
+ fRange.r := $1F;
+ fRange.g := $1F;
+ fRange.b := $1F;
+ fRange.a := $00;
+ fShift.r := 10;
+ fShift.g := 5;
+ fShift.b := 0;
+ fShift.a := 0;
+ fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB5;
+ fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
+end;
+
+constructor TfdBGR8.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR8;
+ fWithAlpha := tfBGRA8;
+ fWithoutAlpha := tfBGR8;
+ fRGBInverted := tfRGB8;
+ fglInternalFormat := GL_RGB8;
+end;
+
+constructor TfdBGR10.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR10;
+ fWithAlpha := tfBGR10A2;
+ fWithoutAlpha := tfBGR10;
+ fRGBInverted := tfRGB10;
+ fRange.r := $3FF;
+ fRange.g := $3FF;
+ fRange.b := $3FF;
+ fRange.a := $000;
+ fShift.r := 20;
+ fShift.g := 10;
+ fShift.b := 0;
+ fShift.a := 0;
+ fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
+ fglInternalFormat := GL_RGB10;
+ fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
+end;
+
+constructor TfdBGR12.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR12;
+ fWithAlpha := tfBGRA12;
+ fWithoutAlpha := tfBGR12;
+ fRGBInverted := tfRGB12;
+ fglInternalFormat := GL_RGB12;
+end;
+
+constructor TfdBGR16.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR16;
+ fWithAlpha := tfBGRA16;
+ fWithoutAlpha := tfBGR16;
+ fRGBInverted := tfRGB16;
+ fglInternalFormat := GL_RGB16;
+end;
+
+constructor TfdBGRA2.Create;
+begin
+ inherited Create;
+ fFormat := tfBGRA2;
+ fWithAlpha := tfBGRA4;
+ fWithoutAlpha := tfBGR4;
+ fRGBInverted := tfRGBA2;
+ fglInternalFormat := GL_RGBA2;
+end;
+
+constructor TfdBGRA4.Create;
+begin
+ inherited Create;
+ fFormat := tfBGRA4;
+ fWithAlpha := tfBGRA4;
+ fWithoutAlpha := tfBGR4;
+ fRGBInverted := tfRGBA4;
+ fRange.r := $F;
+ fRange.g := $F;
+ fRange.b := $F;
+ fRange.a := $F;
+ fShift.r := 8;
+ fShift.g := 4;
+ fShift.b := 0;
+ fShift.a := 12;
+ fglFormat := GL_BGRA;
+ fglInternalFormat := GL_RGBA4;
+ fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
+end;
+
+constructor TfdBGR5A1.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR5A1;
+ fWithAlpha := tfBGR5A1;
+ fWithoutAlpha := tfBGR5;
+ fRGBInverted := tfRGB5A1;
+ fRange.r := $1F;
+ fRange.g := $1F;
+ fRange.b := $1F;
+ fRange.a := $01;
+ fShift.r := 10;
+ fShift.g := 5;
+ fShift.b := 0;
+ fShift.a := 15;
+ fglFormat := GL_BGRA;
+ fglInternalFormat := GL_RGB5_A1;
+ fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
+end;
+
+constructor TfdBGRA8.Create;
+begin
+ inherited Create;
+ fFormat := tfBGRA8;
+ fWithAlpha := tfBGRA8;
+ fWithoutAlpha := tfBGR8;
+ fRGBInverted := tfRGBA8;
+ fglInternalFormat := GL_RGBA8;
+end;
+
+constructor TfdBGR10A2.Create;
+begin
+ inherited Create;
+ fFormat := tfBGR10A2;
+ fWithAlpha := tfBGR10A2;
+ fWithoutAlpha := tfBGR10;
+ fRGBInverted := tfRGB10A2;
+ fRange.r := $3FF;
+ fRange.g := $3FF;
+ fRange.b := $3FF;
+ fRange.a := $003;
+ fShift.r := 20;
+ fShift.g := 10;
+ fShift.b := 0;
+ fShift.a := 30;
+ fglFormat := GL_BGRA;
+ fglInternalFormat := GL_RGB10_A2;
+ fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
+end;
+
+constructor TfdBGRA12.Create;
+begin
+ inherited Create;
+ fFormat := tfBGRA12;
+ fWithAlpha := tfBGRA12;
+ fWithoutAlpha := tfBGR12;
+ fRGBInverted := tfRGBA12;
+ fglInternalFormat := GL_RGBA12;
+end;
+
+constructor TfdBGRA16.Create;
+begin
+ inherited Create;
+ fFormat := tfBGRA16;
+ fWithAlpha := tfBGRA16;
+ fWithoutAlpha := tfBGR16;
+ fRGBInverted := tfRGBA16;
+ fglInternalFormat := GL_RGBA16;
+end;
+
+constructor TfdDepth16.Create;
+begin
+ inherited Create;
+ fFormat := tfDepth16;
+ fWithAlpha := tfEmpty;
+ fWithoutAlpha := tfDepth16;
+ fglInternalFormat := GL_DEPTH_COMPONENT16;
+end;
+
+constructor TfdDepth24.Create;
+begin
+ inherited Create;
+ fFormat := tfDepth24;
+ fWithAlpha := tfEmpty;
+ fWithoutAlpha := tfDepth24;
+ fglInternalFormat := GL_DEPTH_COMPONENT24;
+end;
+
+constructor TfdDepth32.Create;
+begin
+ inherited Create;
+ fFormat := tfDepth32;
+ fWithAlpha := tfEmpty;
+ fWithoutAlpha := tfDepth32;
+ fglInternalFormat := GL_DEPTH_COMPONENT32;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdS3tcDtx1RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdS3tcDtx1RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+procedure TfdS3tcDtx1RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+constructor TfdS3tcDtx1RGBA.Create;
+begin
+ inherited Create;
+ fFormat := tfS3tcDtx1RGBA;
+ fWithAlpha := tfS3tcDtx1RGBA;
+ fUncompressed := tfRGB5A1;
+ fPixelSize := 0.5;
+ fIsCompressed := true;
+ fglFormat := GL_COMPRESSED_RGBA;
+ fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdS3tcDtx3RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdS3tcDtx3RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+procedure TfdS3tcDtx3RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+constructor TfdS3tcDtx3RGBA.Create;
+begin
+ inherited Create;
+ fFormat := tfS3tcDtx3RGBA;
+ fWithAlpha := tfS3tcDtx3RGBA;
+ fUncompressed := tfRGBA8;
+ fPixelSize := 1.0;
+ fIsCompressed := true;
+ fglFormat := GL_COMPRESSED_RGBA;
+ fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TfdS3tcDtx5RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TfdS3tcDtx5RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+procedure TfdS3tcDtx5RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+begin
+ raise EglBitmap.Create('mapping for compressed formats is not supported');
+end;
+
+constructor TfdS3tcDtx5RGBA.Create;
+begin
+ inherited Create;
+ fFormat := tfS3tcDtx3RGBA;
+ fWithAlpha := tfS3tcDtx3RGBA;
+ fUncompressed := tfRGBA8;
+ fPixelSize := 1.0;
+ fIsCompressed := true;
+ fglFormat := GL_COMPRESSED_RGBA;
+ fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
+ fglDataFormat := GL_UNSIGNED_BYTE;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmapFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class function TglBitmapFormatDescriptor.GetByFormat(const aInternalFormat: GLenum): TglBitmapFormatDescriptor;
+var
+ f: TglBitmapFormat;
+begin
+ for f := Low(TglBitmapFormat) to High(TglBitmapFormat) do begin
+ result := TFormatDescriptor.Get(f);
+ if (result.glInternalFormat = aInternalFormat) then
+ exit;
+ end;
+ result := TFormatDescriptor.Get(tfEmpty);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class procedure TFormatDescriptor.Init;
+begin
+ if not Assigned(FormatDescriptorCS) then
+ FormatDescriptorCS := TCriticalSection.Create;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class function TFormatDescriptor.Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
+begin
+ FormatDescriptorCS.Enter;
+ try
+ result := FormatDescriptors[aFormat];
+ if not Assigned(result) then begin
+ result := FORMAT_DESCRIPTOR_CLASSES[aFormat].Create;
+ FormatDescriptors[aFormat] := result;
+ end;
+ finally
+ FormatDescriptorCS.Leave;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class function TFormatDescriptor.GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
+begin
+ result := Get(Get(aFormat).WithAlpha);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class procedure TFormatDescriptor.Clear;
+var
+ f: TglBitmapFormat;
+begin
+ FormatDescriptorCS.Enter;
+ try
+ for f := low(FormatDescriptors) to high(FormatDescriptors) do
+ FreeAndNil(FormatDescriptors[f]);
+ finally
+ FormatDescriptorCS.Leave;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class procedure TFormatDescriptor.Finalize;
+begin
+ Clear;
+ FreeAndNil(FormatDescriptorCS);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TBitfieldFormat/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.SetRedMask(const aValue: QWord);
+begin
+ Update(aValue, fRange.r, fShift.r);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.SetGreenMask(const aValue: QWord);
+begin
+ Update(aValue, fRange.g, fShift.g);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.SetBlueMask(const aValue: QWord);
+begin
+ Update(aValue, fRange.b, fShift.b);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.SetAlphaMask(const aValue: QWord);
+begin
+ Update(aValue, fRange.a, fShift.a);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.Update(aMask: QWord; out aRange: Cardinal; out
+ aShift: Byte);
+begin
+ aShift := 0;
+ aRange := 0;
+ if (aMask = 0) then
+ exit;
+ while (aMask > 0) and ((aMask and 1) = 0) do begin
+ inc(aShift);
+ aMask := aMask shr 1;
+ end;
+ aRange := 1;
+ while (aMask > 0) do begin
+ aRange := aRange shl 1;
+ aMask := aMask shr 1;
+ end;
+ dec(aRange);
+
+ fPixelSize := Round(GetTopMostBit(RedMask or GreenMask or BlueMask or AlphaMask) / 8);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+var
+ data: QWord;
+ s: Integer;
+begin
+ data :=
+ ((aPixel.Data.r and fRange.r) shl fShift.r) or
+ ((aPixel.Data.g and fRange.g) shl fShift.g) or
+ ((aPixel.Data.b and fRange.b) shl fShift.b) or
+ ((aPixel.Data.a and fRange.a) shl fShift.a);
+ s := Round(fPixelSize);
+ case s of
+ 1: aData^ := data;
+ 2: PWord(aData)^ := data;
+ 4: PCardinal(aData)^ := data;
+ 8: PQWord(aData)^ := data;
+ else
+ raise EglBitmap.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
+ end;
+ inc(aData, s);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpBitfieldFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+var
+ data: QWord;
+ s, i: Integer;
+begin
+ s := Round(fPixelSize);
+ case s of
+ 1: data := aData^;
+ 2: data := PWord(aData)^;
+ 4: data := PCardinal(aData)^;
+ 8: data := PQWord(aData)^;
+ else
+ raise EglBitmap.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
+ end;
+ for i := 0 to 3 do
+ aPixel.Data.arr[i] := (data shr fShift.arr[i]) and fRange.arr[i];
+ inc(aData, s);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TColorTableFormat///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpColorTableFormat.CreateColorTable;
+var
+ i: Integer;
+begin
+ if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
+ raise EglBitmap.Create(UNSUPPORTED_FORMAT);
+
+ if (Format = tfLuminance4) then
+ SetLength(fColorTable, 16)
+ else
+ SetLength(fColorTable, 256);
+
+ case Format of
+ tfLuminance4: begin
+ for i := 0 to High(fColorTable) do begin
+ fColorTable[i].r := 16 * i;
+ fColorTable[i].g := 16 * i;
+ fColorTable[i].b := 16 * i;
+ fColorTable[i].a := 0;
+ end;
+ end;
+
+ tfLuminance8: begin
+ for i := 0 to High(fColorTable) do begin
+ fColorTable[i].r := i;
+ fColorTable[i].g := i;
+ fColorTable[i].b := i;
+ fColorTable[i].a := 0;
+ end;
+ end;
+
+ tfR3G3B2: begin
+ for i := 0 to High(fColorTable) do begin
+ fColorTable[i].r := Round(((i shr Shift.r) and Range.r) / Range.r * 255);
+ fColorTable[i].g := Round(((i shr Shift.g) and Range.g) / Range.g * 255);
+ fColorTable[i].b := Round(((i shr Shift.b) and Range.b) / Range.b * 255);
+ fColorTable[i].a := 0;
+ end;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpColorTableFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
+var
+ d: Byte;
+begin
+ if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
+ raise EglBitmap.Create(UNSUPPORTED_FORMAT);
+
+ case Format of
+ tfLuminance4: begin
+ if (aMapData = nil) then
+ aData^ := 0;
+ d := LuminanceWeight(aPixel) and Range.r;
+ aData^ := aData^ or (d shl (4 - {%H-}PtrUInt(aMapData)));
+ inc(PByte(aMapData), 4);
+ if ({%H-}PtrUInt(aMapData) >= 8) then begin
+ inc(aData);
+ aMapData := nil;
+ end;
+ end;
+
+ tfLuminance8: begin
+ aData^ := LuminanceWeight(aPixel) and Range.r;
+ inc(aData);
+ end;
+
+ tfR3G3B2: begin
+ aData^ := Round(
+ ((aPixel.Data.r and Range.r) shl Shift.r) or
+ ((aPixel.Data.g and Range.g) shl Shift.g) or
+ ((aPixel.Data.b and Range.b) shl Shift.b));
+ inc(aData);
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TbmpColorTableFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+var
+ idx: QWord;
+ s: Integer;
+ bits: Byte;
+ f: Single;
+begin
+ s := Trunc(fPixelSize);
+ f := fPixelSize - s;
+ bits := Round(8 * f);
+ case s of
+ 0: idx := (aData^ shr (8 - bits - {%H-}PtrInt(aMapData))) and ((1 shl bits) - 1);
+ 1: idx := aData^;
+ 2: idx := PWord(aData)^;
+ 4: idx := PCardinal(aData)^;
+ 8: idx := PQWord(aData)^;
+ else
+ raise EglBitmap.CreateFmt('invalid pixel size: %.3f', [fPixelSize]);
+ end;
+ if (idx >= Length(fColorTable)) then
+ raise EglBitmap.CreateFmt('invalid color index: %d', [idx]);
+ with fColorTable[idx] do begin
+ aPixel.Data.r := r;
+ aPixel.Data.g := g;
+ aPixel.Data.b := b;
+ aPixel.Data.a := a;
+ end;
+ inc(PByte(aMapData), bits);
+ if ({%H-}PtrUInt(aMapData) >= 8) then begin
+ inc(aData, 1);
+ dec(PByte(aMapData), 8);
+ end;
+ inc(aData, s);
+end;
+
+destructor TbmpColorTableFormat.Destroy;
+begin
+ SetLength(fColorTable, 0);
+ inherited Destroy;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap - Helper//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapConvertPixel(var aPixel: TglBitmapPixelData; const aSourceFD, aDestFD: TFormatDescriptor);
+var
+ i: Integer;
+begin
+ for i := 0 to 3 do begin
+ if (aSourceFD.Range.arr[i] <> aDestFD.Range.arr[i]) then begin
+ if (aSourceFD.Range.arr[i] > 0) then
+ aPixel.Data.arr[i] := Round(aPixel.Data.arr[i] / aSourceFD.Range.arr[i] * aDestFD.Range.arr[i])
+ else
+ aPixel.Data.arr[i] := aDestFD.Range.arr[i];
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapConvertCopyFunc(var aFuncRec: TglBitmapFunctionRec);
+begin
+ with aFuncRec do begin
+ if (Source.Range.r > 0) then
+ Dest.Data.r := Source.Data.r;
+ if (Source.Range.g > 0) then
+ Dest.Data.g := Source.Data.g;
+ if (Source.Range.b > 0) then
+ Dest.Data.b := Source.Data.b;
+ if (Source.Range.a > 0) then
+ Dest.Data.a := Source.Data.a;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapConvertCalculateRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
+var
+ i: Integer;
+begin
+ with aFuncRec do begin
+ for i := 0 to 3 do
+ if (Source.Range.arr[i] > 0) then
+ Dest.Data.arr[i] := Round(Dest.Range.arr[i] * Source.Data.arr[i] / Source.Range.arr[i]);
+ end;
+end;
+
+type
+ TShiftData = packed record
+ case Integer of
+ 0: (r, g, b, a: SmallInt);
+ 1: (arr: array[0..3] of SmallInt);
+ end;
+ PShiftData = ^TShiftData;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapConvertShiftRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
+var
+ i: Integer;
+begin
+ with aFuncRec do
+ for i := 0 to 3 do
+ if (Source.Range.arr[i] > 0) then
+ Dest.Data.arr[i] := Source.Data.arr[i] shr PShiftData(Args)^.arr[i];
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapInvertFunc(var aFuncRec: TglBitmapFunctionRec);
+begin
+ with aFuncRec do begin
+ Dest.Data := Source.Data;
+ if ({%H-}PtrUInt(Args) and $1 > 0) then begin
+ Dest.Data.r := Dest.Data.r xor Dest.Range.r;
+ Dest.Data.g := Dest.Data.g xor Dest.Range.g;
+ Dest.Data.b := Dest.Data.b xor Dest.Range.b;
+ end;
+ if ({%H-}PtrUInt(Args) and $2 > 0) then begin
+ Dest.Data.a := Dest.Data.a xor Dest.Range.a;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapFillWithColorFunc(var aFuncRec: TglBitmapFunctionRec);
+var
+ i: Integer;
+begin
+ with aFuncRec do begin
+ for i := 0 to 3 do
+ Dest.Data.arr[i] := PglBitmapPixelData(Args)^.Data.arr[i];
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapAlphaFunc(var FuncRec: TglBitmapFunctionRec);
+var
+ Temp: Single;
+begin
+ with FuncRec do begin
+ if (FuncRec.Args = nil) then begin //source has no alpha
+ Temp :=
+ Source.Data.r / Source.Range.r * ALPHA_WEIGHT_R +
+ Source.Data.g / Source.Range.g * ALPHA_WEIGHT_G +
+ Source.Data.b / Source.Range.b * ALPHA_WEIGHT_B;
+ Dest.Data.a := Round(Dest.Range.a * Temp);
+ end else
+ Dest.Data.a := Round(Source.Data.a / Source.Range.a * Dest.Range.a);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapColorKeyAlphaFunc(var FuncRec: TglBitmapFunctionRec);
+type
+ PglBitmapPixelData = ^TglBitmapPixelData;
+begin
+ with FuncRec do begin
+ Dest.Data.r := Source.Data.r;
+ Dest.Data.g := Source.Data.g;
+ Dest.Data.b := Source.Data.b;
+
+ with PglBitmapPixelData(Args)^ do
+ if ((Dest.Data.r <= Data.r) and (Dest.Data.r >= Range.r) and
+ (Dest.Data.g <= Data.g) and (Dest.Data.g >= Range.g) and
+ (Dest.Data.b <= Data.b) and (Dest.Data.b >= Range.b)) then
+ Dest.Data.a := 0
+ else
+ Dest.Data.a := Dest.Range.a;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapValueAlphaFunc(var FuncRec: TglBitmapFunctionRec);
+begin
+ with FuncRec do begin
+ Dest.Data.r := Source.Data.r;
+ Dest.Data.g := Source.Data.g;
+ Dest.Data.b := Source.Data.b;
+ Dest.Data.a := PCardinal(Args)^;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure SwapRGB(aData: PByte; aWidth: Integer; const aHasAlpha: Boolean);
+type
+ PRGBPix = ^TRGBPix;
+ TRGBPix = array [0..2] of byte;
+var
+ Temp: Byte;
+begin
+ while aWidth > 0 do begin
+ Temp := PRGBPix(aData)^[0];
+ PRGBPix(aData)^[0] := PRGBPix(aData)^[2];
+ PRGBPix(aData)^[2] := Temp;
+
+ if aHasAlpha then
+ Inc(aData, 4)
+ else
+ Inc(aData, 3);
+ dec(aWidth);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap - PROTECTED///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetFormatDesc: TglBitmapFormatDescriptor;
+begin
+ result := TFormatDescriptor.Get(Format);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetWidth: Integer;
+begin
+ if (ffX in fDimension.Fields) then
+ result := fDimension.X
+ else
+ result := -1;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetHeight: Integer;
+begin
+ if (ffY in fDimension.Fields) then
+ result := fDimension.Y
+ else
+ result := -1;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetFileWidth: Integer;
+begin
+ result := Max(1, Width);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetFileHeight: Integer;
+begin
+ result := Max(1, Height);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomData(const aValue: Pointer);
+begin
+ if fCustomData = aValue then
+ exit;
+ fCustomData := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomName(const aValue: String);
+begin
+ if fCustomName = aValue then
+ exit;
+ fCustomName := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomNameW(const aValue: WideString);
+begin
+ if fCustomNameW = aValue then
+ exit;
+ fCustomNameW := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetFreeDataOnDestroy(const aValue: Boolean);
+begin
+ if fFreeDataOnDestroy = aValue then
+ exit;
+ fFreeDataOnDestroy := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetDeleteTextureOnFree(const aValue: Boolean);
+begin
+ if fDeleteTextureOnFree = aValue then
+ exit;
+ fDeleteTextureOnFree := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetFormat(const aValue: TglBitmapFormat);
+begin
+ if fFormat = aValue then
+ exit;
+ if TFormatDescriptor.Get(Format).PixelSize <> TFormatDescriptor.Get(aValue).PixelSize then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ SetDataPointer(fData, aValue, Width, Height); //be careful, Data could be freed by this method
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetFreeDataAfterGenTexture(const aValue: Boolean);
+begin
+ if fFreeDataAfterGenTexture = aValue then
+ exit;
+ fFreeDataAfterGenTexture := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetID(const aValue: Cardinal);
+begin
+ if fID = aValue then
+ exit;
+ fID := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetMipMap(const aValue: TglBitmapMipMap);
+begin
+ if fMipMap = aValue then
+ exit;
+ fMipMap := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetTarget(const aValue: Cardinal);
+begin
+ if fTarget = aValue then
+ exit;
+ fTarget := aValue;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetAnisotropic(const aValue: Integer);
+var
+ MaxAnisotropic: Integer;
+begin
+ fAnisotropic := aValue;
+ if (ID > 0) then begin
+ if GL_EXT_texture_filter_anisotropic then begin
+ if fAnisotropic > 0 then begin
+ Bind(false);
+ glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, @MaxAnisotropic);
+ if aValue > MaxAnisotropic then
+ fAnisotropic := MaxAnisotropic;
+ glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
+ end;
+ end else begin
+ fAnisotropic := 0;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.CreateID;
+begin
+ if (ID <> 0) then
+ glDeleteTextures(1, @fID);
+ glGenTextures(1, @fID);
+ Bind(false);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetupParameters(out aBuildWithGlu: Boolean);
+begin
+ // Set Up Parameters
+ SetWrap(fWrapS, fWrapT, fWrapR);
+ SetFilter(fFilterMin, fFilterMag);
+ SetAnisotropic(fAnisotropic);
+ SetBorderColor(fBorderColor[0], fBorderColor[1], fBorderColor[2], fBorderColor[3]);
+
+ if (GL_ARB_texture_swizzle or GL_EXT_texture_swizzle or GL_VERSION_3_3) then
+ SetSwizzle(fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
+
+ // Mip Maps Generation Mode
+ aBuildWithGlu := false;
+ if (MipMap = mmMipmap) then begin
+ if (GL_VERSION_1_4 or GL_SGIS_generate_mipmap) then
+ glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE)
+ else
+ aBuildWithGlu := true;
+ end else if (MipMap = mmMipmapGlu) then
+ aBuildWithGlu := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer; const aHeight: Integer);
+var
+ s: Single;
+begin
+ if (Data <> aData) then begin
+ if (Assigned(Data)) then
+ FreeMem(Data);
+ fData := aData;
+ end;
+
+ if not Assigned(fData) then begin
+ fPixelSize := 0;
+ fRowSize := 0;
+ end else begin
+ FillChar(fDimension, SizeOf(fDimension), 0);
+ if aWidth <> -1 then begin
+ fDimension.Fields := fDimension.Fields + [ffX];
+ fDimension.X := aWidth;
+ end;
+
+ if aHeight <> -1 then begin
+ fDimension.Fields := fDimension.Fields + [ffY];
+ fDimension.Y := aHeight;
+ end;
+
+ s := TFormatDescriptor.Get(aFormat).PixelSize;
+ fFormat := aFormat;
+ fPixelSize := Ceil(s);
+ fRowSize := Ceil(s * aWidth);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.FlipHorz: Boolean;
+begin
+ result := false;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.FlipVert: Boolean;
+begin
+ result := false;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap - PUBLIC//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.AfterConstruction;
+begin
+ inherited AfterConstruction;
+
+ fID := 0;
+ fTarget := 0;
+ fIsResident := false;
+
+ fMipMap := glBitmapDefaultMipmap;
+ fFreeDataAfterGenTexture := glBitmapGetDefaultFreeDataAfterGenTexture;
+ fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
+
+ glBitmapGetDefaultFilter (fFilterMin, fFilterMag);
+ glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
+ glBitmapGetDefaultSwizzle (fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.BeforeDestruction;
+var
+ NewData: PByte;
+begin
+ if fFreeDataOnDestroy then begin
+ NewData := nil;
+ SetDataPointer(NewData, tfEmpty); //be careful, Data could be freed by this method
+ end;
+ if (fID > 0) and fDeleteTextureOnFree then
+ glDeleteTextures(1, @fID);
+ inherited BeforeDestruction;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.PrepareResType(var aResource: String; var aResType: PChar);
+var
+ TempPos: Integer;
+begin
+ if not Assigned(aResType) then begin
+ TempPos := Pos('.', aResource);
+ aResType := PChar(UpperCase(Copy(aResource, TempPos + 1, Length(aResource) - TempPos)));
+ aResource := UpperCase(Copy(aResource, 0, TempPos -1));
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.LoadFromFile(const aFilename: String);
+var
+ fs: TFileStream;
+begin
+ if not FileExists(aFilename) then
+ raise EglBitmap.Create('file does not exist: ' + aFilename);
+ fFilename := aFilename;
+ fs := TFileStream.Create(fFilename, fmOpenRead);
+ try
+ fs.Position := 0;
+ LoadFromStream(fs);
+ finally
+ fs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.LoadFromStream(const aStream: TStream);
+begin
+ {$IFDEF GLB_SUPPORT_PNG_READ}
+ if not LoadPNG(aStream) then
+ {$ENDIF}
+ {$IFDEF GLB_SUPPORT_JPEG_READ}
+ if not LoadJPEG(aStream) then
+ {$ENDIF}
+ if not LoadDDS(aStream) then
+ if not LoadTGA(aStream) then
+ if not LoadBMP(aStream) then
+ raise EglBitmap.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
+ const aFormat: TglBitmapFormat; const aArgs: Pointer);
+var
+ tmpData: PByte;
+ size: Integer;
+begin
+ size := TFormatDescriptor.Get(aFormat).GetSize(aSize);
+ GetMem(tmpData, size);
+ try
+ FillChar(tmpData^, size, #$FF);
+ SetDataPointer(tmpData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
+ except
+ if Assigned(tmpData) then
+ FreeMem(tmpData);
+ raise;
+ end;
+ AddFunc(Self, aFunc, false, aFormat, aArgs);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar);
+var
+ rs: TResourceStream;
+begin
+ PrepareResType(aResource, aResType);
+ rs := TResourceStream.Create(aInstance, aResource, aResType);
+ try
+ LoadFromStream(rs);
+ finally
+ rs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+var
+ rs: TResourceStream;
+begin
+ rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
+ try
+ LoadFromStream(rs);
+ finally
+ rs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
+var
+ fs: TFileStream;
+begin
+ fs := TFileStream.Create(aFileName, fmCreate);
+ try
+ fs.Position := 0;
+ SaveToStream(fs, aFileType);
+ finally
+ fs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType);
+begin
+ case aFileType of
+ {$IFDEF GLB_SUPPORT_PNG_WRITE}
+ ftPNG: SavePNG(aStream);
+ {$ENDIF}
+ {$IFDEF GLB_SUPPORT_JPEG_WRITE}
+ ftJPEG: SaveJPEG(aStream);
+ {$ENDIF}
+ ftDDS: SaveDDS(aStream);
+ ftTGA: SaveTGA(aStream);
+ ftBMP: SaveBMP(aStream);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer): Boolean;
+begin
+ result := AddFunc(Self, aFunc, aCreateTemp, Format, aArgs);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
+ const aFormat: TglBitmapFormat; const aArgs: Pointer): Boolean;
+var
+ DestData, TmpData, SourceData: pByte;
+ TempHeight, TempWidth: Integer;
+ SourceFD, DestFD: TFormatDescriptor;
+ SourceMD, DestMD: Pointer;
+
+ FuncRec: TglBitmapFunctionRec;
+begin
+ Assert(Assigned(Data));
+ Assert(Assigned(aSource));
+ Assert(Assigned(aSource.Data));
+
+ result := false;
+ if Assigned(aSource.Data) and ((aSource.Height > 0) or (aSource.Width > 0)) then begin
+ SourceFD := TFormatDescriptor.Get(aSource.Format);
+ DestFD := TFormatDescriptor.Get(aFormat);
+
+ if (SourceFD.IsCompressed) then
+ raise EglBitmapUnsupportedFormat.Create('compressed formats are not supported: ', SourceFD.Format);
+ if (DestFD.IsCompressed) then
+ raise EglBitmapUnsupportedFormat.Create('compressed formats are not supported: ', DestFD.Format);
+
+ // inkompatible Formats so CreateTemp
+ if (SourceFD.PixelSize <> DestFD.PixelSize) then
+ aCreateTemp := true;
+
+ // Values
+ TempHeight := Max(1, aSource.Height);
+ TempWidth := Max(1, aSource.Width);
+
+ FuncRec.Sender := Self;
+ FuncRec.Args := aArgs;
+
+ TmpData := nil;
+ if aCreateTemp then begin
+ GetMem(TmpData, DestFD.GetSize(TempWidth, TempHeight));
+ DestData := TmpData;
+ end else
+ DestData := Data;
+
+ try
+ SourceFD.PreparePixel(FuncRec.Source);
+ DestFD.PreparePixel (FuncRec.Dest);
+
+ SourceMD := SourceFD.CreateMappingData;
+ DestMD := DestFD.CreateMappingData;
+
+ FuncRec.Size := aSource.Dimension;
+ FuncRec.Position.Fields := FuncRec.Size.Fields;
+
+ try
+ SourceData := aSource.Data;
+ FuncRec.Position.Y := 0;
+ while FuncRec.Position.Y < TempHeight do begin
+ FuncRec.Position.X := 0;
+ while FuncRec.Position.X < TempWidth do begin
+ SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
+ aFunc(FuncRec);
+ DestFD.Map(FuncRec.Dest, DestData, DestMD);
+ inc(FuncRec.Position.X);
+ end;
+ inc(FuncRec.Position.Y);
+ end;
+
+ // Updating Image or InternalFormat
+ if aCreateTemp then
+ SetDataPointer(TmpData, aFormat, aSource.Width, aSource.Height) //be careful, Data could be freed by this method
+ else if (aFormat <> fFormat) then
+ Format := aFormat;
+
+ result := true;
+ finally
+ SourceFD.FreeMappingData(SourceMD);
+ DestFD.FreeMappingData(DestMD);
+ end;
+ except
+ if aCreateTemp and Assigned(TmpData) then
+ FreeMem(TmpData);
+ raise;
+ end;
+ end;
+end;
+
+{$IFDEF GLB_SDL}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignToSurface(out aSurface: PSDL_Surface): Boolean;
+var
+ Row, RowSize: Integer;
+ SourceData, TmpData: PByte;
+ TempDepth: Integer;
+ FormatDesc: TFormatDescriptor;
+
+ function GetRowPointer(Row: Integer): pByte;
+ begin
+ result := aSurface.pixels;
+ Inc(result, Row * RowSize);
+ end;
+
+begin
+ result := false;
+
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ if Assigned(Data) then begin
+ case Trunc(FormatDesc.PixelSize) of
+ 1: TempDepth := 8;
+ 2: TempDepth := 16;
+ 3: TempDepth := 24;
+ 4: TempDepth := 32;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
+
+ aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, TempDepth,
+ FormatDesc.RedMask, FormatDesc.GreenMask, FormatDesc.BlueMask, FormatDesc.AlphaMask);
+ SourceData := Data;
+ RowSize := FormatDesc.GetSize(FileWidth, 1);
+
+ for Row := 0 to FileHeight-1 do begin
+ TmpData := GetRowPointer(Row);
+ if Assigned(TmpData) then begin
+ Move(SourceData^, TmpData^, RowSize);
+ inc(SourceData, RowSize);
+ end;
+ end;
+ result := true;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
+var
+ pSource, pData, pTempData: PByte;
+ Row, RowSize, TempWidth, TempHeight: Integer;
+ IntFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+
+ function GetRowPointer(Row: Integer): pByte;
+ begin
+ result := aSurface^.pixels;
+ Inc(result, Row * RowSize);
+ end;
+
+begin
+ result := false;
+ if (Assigned(aSurface)) then begin
+ with aSurface^.format^ do begin
+ for IntFormat := High(TglBitmapFormat) to Low(TglBitmapFormat) do begin
+ FormatDesc := TFormatDescriptor.Get(IntFormat);
+ if (FormatDesc.MaskMatch(RMask, GMask, BMask, AMask)) then
+ break;
+ end;
+ if (IntFormat = tfEmpty) then
+ raise EglBitmapException.Create('AssignFromSurface - Invalid Pixelformat.');
+ end;
+
+ TempWidth := aSurface^.w;
+ TempHeight := aSurface^.h;
+ RowSize := FormatDesc.GetSize(TempWidth, 1);
+ GetMem(pData, TempHeight * RowSize);
+ try
+ pTempData := pData;
+ for Row := 0 to TempHeight -1 do begin
+ pSource := GetRowPointer(Row);
+ if (Assigned(pSource)) then begin
+ Move(pSource^, pTempData^, RowSize);
+ Inc(pTempData, RowSize);
+ end;
+ end;
+ SetDataPointer(pData, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(pData) then
+ FreeMem(pData);
+ raise;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
+var
+ Row, Col, AlphaInterleave: Integer;
+ pSource, pDest: PByte;
+
+ function GetRowPointer(Row: Integer): pByte;
+ begin
+ result := aSurface.pixels;
+ Inc(result, Row * Width);
+ end;
+
+begin
+ result := false;
+ if Assigned(Data) then begin
+ if Format in [tfAlpha8, tfLuminance8Alpha8, tfBGRA8, tfRGBA8] then begin
+ aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
+
+ AlphaInterleave := 0;
+ case Format of
+ tfLuminance8Alpha8:
+ AlphaInterleave := 1;
+ tfBGRA8, tfRGBA8:
+ AlphaInterleave := 3;
+ end;
+
+ pSource := Data;
+ for Row := 0 to Height -1 do begin
+ pDest := GetRowPointer(Row);
+ if Assigned(pDest) then begin
+ for Col := 0 to Width -1 do begin
+ Inc(pSource, AlphaInterleave);
+ pDest^ := pSource^;
+ Inc(pDest);
+ Inc(pSource);
+ end;
+ end;
+ end;
+ result := true;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+var
+ bmp: TglBitmap2D;
+begin
+ bmp := TglBitmap2D.Create;
+ try
+ bmp.AssignFromSurface(aSurface);
+ result := AddAlphaFromGlBitmap(bmp, aFunc, aArgs);
+ finally
+ bmp.Free;
+ end;
+end;
+{$ENDIF}
+
+{$IFDEF GLB_DELPHI}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function CreateGrayPalette: HPALETTE;
+var
+ Idx: Integer;
+ Pal: PLogPalette;
+begin
+ GetMem(Pal, SizeOf(TLogPalette) + (SizeOf(TPaletteEntry) * 256));
+
+ Pal.palVersion := $300;
+ Pal.palNumEntries := 256;
+
+ for Idx := 0 to Pal.palNumEntries - 1 do begin
+ Pal.palPalEntry[Idx].peRed := Idx;
+ Pal.palPalEntry[Idx].peGreen := Idx;
+ Pal.palPalEntry[Idx].peBlue := Idx;
+ Pal.palPalEntry[Idx].peFlags := 0;
+ end;
+ Result := CreatePalette(Pal^);
+ FreeMem(Pal);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignToBitmap(const aBitmap: TBitmap): Boolean;
+var
+ Row: Integer;
+ pSource, pData: PByte;
+begin
+ result := false;
+ if Assigned(Data) then begin
+ if Assigned(aBitmap) then begin
+ aBitmap.Width := Width;
+ aBitmap.Height := Height;
+
+ case Format of
+ tfAlpha8, tfLuminance8: begin
+ aBitmap.PixelFormat := pf8bit;
+ aBitmap.Palette := CreateGrayPalette;
+ end;
+ tfRGB5A1:
+ aBitmap.PixelFormat := pf15bit;
+ tfR5G6B5:
+ aBitmap.PixelFormat := pf16bit;
+ tfRGB8, tfBGR8:
+ aBitmap.PixelFormat := pf24bit;
+ tfRGBA8, tfBGRA8:
+ aBitmap.PixelFormat := pf32bit;
+ else
+ raise EglBitmap.Create('AssignToBitmap - Invalid Pixelformat.');
+ end;
+
+ pSource := Data;
+ for Row := 0 to FileHeight -1 do begin
+ pData := aBitmap.Scanline[Row];
+ Move(pSource^, pData^, fRowSize);
+ Inc(pSource, fRowSize);
+ if (Format in [tfRGB8, tfRGBA8]) then // swap RGB(A) to BGR(A)
+ SwapRGB(pData, FileWidth, Format = tfRGBA8);
+ end;
+ result := true;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignFromBitmap(const aBitmap: TBitmap): Boolean;
+var
+ pSource, pData, pTempData: PByte;
+ Row, RowSize, TempWidth, TempHeight: Integer;
+ IntFormat: TglBitmapFormat;
+begin
+ result := false;
+
+ if (Assigned(aBitmap)) then begin
+ case aBitmap.PixelFormat of
+ pf8bit:
+ IntFormat := tfLuminance8;
+ pf15bit:
+ IntFormat := tfRGB5A1;
+ pf16bit:
+ IntFormat := tfR5G6B5;
+ pf24bit:
+ IntFormat := tfBGR8;
+ pf32bit:
+ IntFormat := tfBGRA8;
+ else
+ raise EglBitmap.Create('AssignFromBitmap - Invalid Pixelformat.');
+ end;
+
+ TempWidth := aBitmap.Width;
+ TempHeight := aBitmap.Height;
+ RowSize := TFormatDescriptor.Get(IntFormat).GetSize(TempWidth, 1);
+ GetMem(pData, TempHeight * RowSize);
+ try
+ pTempData := pData;
+ for Row := 0 to TempHeight -1 do begin
+ pSource := aBitmap.Scanline[Row];
+ if (Assigned(pSource)) then begin
+ Move(pSource^, pTempData^, RowSize);
+ Inc(pTempData, RowSize);
+ end;
+ end;
+ SetDataPointer(pData, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(pData) then
+ FreeMem(pData);
+ raise;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
+var
+ Row, Col, AlphaInterleave: Integer;
+ pSource, pDest: PByte;
+begin
+ result := false;
+
+ if Assigned(Data) then begin
+ if (Format in [tfAlpha8, tfLuminance8Alpha8, tfRGBA8, tfBGRA8]) then begin
+ if Assigned(aBitmap) then begin
+ aBitmap.PixelFormat := pf8bit;
+ aBitmap.Palette := CreateGrayPalette;
+ aBitmap.Width := Width;
+ aBitmap.Height := Height;
+
+ case Format of
+ tfLuminance8Alpha8:
+ AlphaInterleave := 1;
+ tfRGBA8, tfBGRA8:
+ AlphaInterleave := 3;
+ else
+ AlphaInterleave := 0;
+ end;
+
+ // Copy Data
+ pSource := Data;
+
+ for Row := 0 to Height -1 do begin
+ pDest := aBitmap.Scanline[Row];
+ if Assigned(pDest) then begin
+ for Col := 0 to Width -1 do begin
+ Inc(pSource, AlphaInterleave);
+ pDest^ := pSource^;
+ Inc(pDest);
+ Inc(pSource);
+ end;
+ end;
+ end;
+ result := true;
+ end;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ tex: TglBitmap2D;
+begin
+ tex := TglBitmap2D.Create;
+ try
+ tex.AssignFromBitmap(ABitmap);
+ result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
+ finally
+ tex.Free;
+ end;
+end;
+{$ENDIF}
+
+{$IFDEF GLB_LAZARUS}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+var
+ rid: TRawImageDescription;
+ FormatDesc: TFormatDescriptor;
+begin
+ result := false;
+ if not Assigned(aImage) or (Format = tfEmpty) then
+ exit;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then
+ exit;
+
+ FillChar(rid{%H-}, SizeOf(rid), 0);
+ if (Format in [
+ tfAlpha4, tfAlpha8, tfAlpha12, tfAlpha16,
+ tfLuminance4, tfLuminance8, tfLuminance12, tfLuminance16,
+ tfLuminance4Alpha4, tfLuminance8Alpha8, tfLuminance12Alpha4, tfLuminance12Alpha12, tfLuminance16Alpha16]) then
+ rid.Format := ricfGray
+ else
+ rid.Format := ricfRGBA;
+
+ rid.Width := Width;
+ rid.Height := Height;
+ rid.Depth := CountSetBits(FormatDesc.RedMask or FormatDesc.GreenMask or FormatDesc.BlueMask or FormatDesc.AlphaMask);
+ rid.BitOrder := riboBitsInOrder;
+ rid.ByteOrder := riboLSBFirst;
+ rid.LineOrder := riloTopToBottom;
+ rid.LineEnd := rileTight;
+ rid.BitsPerPixel := Round(8 * FormatDesc.PixelSize);
+ rid.RedPrec := CountSetBits(FormatDesc.Range.r);
+ rid.GreenPrec := CountSetBits(FormatDesc.Range.g);
+ rid.BluePrec := CountSetBits(FormatDesc.Range.b);
+ rid.AlphaPrec := CountSetBits(FormatDesc.Range.a);
+ rid.RedShift := FormatDesc.Shift.r;
+ rid.GreenShift := FormatDesc.Shift.g;
+ rid.BlueShift := FormatDesc.Shift.b;
+ rid.AlphaShift := FormatDesc.Shift.a;
+
+ rid.MaskBitsPerPixel := 0;
+ rid.PaletteColorCount := 0;
+
+ aImage.DataDescription := rid;
+ aImage.CreateData;
+
+ Move(Data^, aImage.PixelData^, FormatDesc.GetSize(Dimension));
+
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
+var
+ f: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+ ImageData: PByte;
+ ImageSize: Integer;
+ CanCopy: Boolean;
+
+ procedure CopyConvert;
+ var
+ bfFormat: TbmpBitfieldFormat;
+ pSourceLine, pDestLine: PByte;
+ pSourceMD, pDestMD: Pointer;
+ x, y: Integer;
+ pixel: TglBitmapPixelData;
+ begin
+ bfFormat := TbmpBitfieldFormat.Create;
+ with aImage.DataDescription do begin
+ bfFormat.RedMask := ((1 shl RedPrec) - 1) shl RedShift;
+ bfFormat.GreenMask := ((1 shl GreenPrec) - 1) shl GreenShift;
+ bfFormat.BlueMask := ((1 shl BluePrec) - 1) shl BlueShift;
+ bfFormat.AlphaMask := ((1 shl AlphaPrec) - 1) shl AlphaShift;
+ bfFormat.PixelSize := BitsPerPixel / 8;
+ end;
+ pSourceMD := bfFormat.CreateMappingData;
+ pDestMD := FormatDesc.CreateMappingData;
+ try
+ for y := 0 to aImage.Height-1 do begin
+ pSourceLine := aImage.PixelData + y {%H-}* aImage.DataDescription.BytesPerLine;
+ pDestLine := ImageData + y * Round(FormatDesc.PixelSize * aImage.Width);
+ for x := 0 to aImage.Width-1 do begin
+ bfFormat.Unmap(pSourceLine, pixel, pSourceMD);
+ FormatDesc.Map(pixel, pDestLine, pDestMD);
+ end;
+ end;
+ finally
+ FormatDesc.FreeMappingData(pDestMD);
+ bfFormat.FreeMappingData(pSourceMD);
+ bfFormat.Free;
+ end;
+ end;
+
+begin
+ result := false;
+ if not Assigned(aImage) then
+ exit;
+ for f := High(f) downto Low(f) do begin
+ FormatDesc := TFormatDescriptor.Get(f);
+ with aImage.DataDescription do
+ if FormatDesc.MaskMatch(
+ (QWord(1 shl RedPrec )-1) shl RedShift,
+ (QWord(1 shl GreenPrec)-1) shl GreenShift,
+ (QWord(1 shl BluePrec )-1) shl BlueShift,
+ (QWord(1 shl AlphaPrec)-1) shl AlphaShift) then
+ break;
+ end;
+
+ if (f = tfEmpty) then
+ exit;
+
+ CanCopy :=
+ (Round(FormatDesc.PixelSize * 8) = aImage.DataDescription.Depth) and
+ (aImage.DataDescription.BitsPerPixel = aImage.DataDescription.Depth);
+
+ ImageSize := FormatDesc.GetSize(aImage.Width, aImage.Height);
+ ImageData := GetMem(ImageSize);
+ try
+ if CanCopy then
+ Move(aImage.PixelData^, ImageData^, ImageSize)
+ else
+ CopyConvert;
+ SetDataPointer(ImageData, f, aImage.Width, aImage.Height); //be careful, Data could be freed by this method
+ except
+ if Assigned(ImageData) then
+ FreeMem(ImageData);
+ raise;
+ end;
+
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+var
+ rid: TRawImageDescription;
+ FormatDesc: TFormatDescriptor;
+ Pixel: TglBitmapPixelData;
+ x, y: Integer;
+ srcMD: Pointer;
+ src, dst: PByte;
+begin
+ result := false;
+ if not Assigned(aImage) or (Format = tfEmpty) then
+ exit;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed or not FormatDesc.HasAlpha then
+ exit;
+
+ FillChar(rid{%H-}, SizeOf(rid), 0);
+ rid.Format := ricfGray;
+ rid.Width := Width;
+ rid.Height := Height;
+ rid.Depth := CountSetBits(FormatDesc.Range.a);
+ rid.BitOrder := riboBitsInOrder;
+ rid.ByteOrder := riboLSBFirst;
+ rid.LineOrder := riloTopToBottom;
+ rid.LineEnd := rileTight;
+ rid.BitsPerPixel := 8 * Ceil(rid.Depth / 8);
+ rid.RedPrec := CountSetBits(FormatDesc.Range.a);
+ rid.GreenPrec := 0;
+ rid.BluePrec := 0;
+ rid.AlphaPrec := 0;
+ rid.RedShift := 0;
+ rid.GreenShift := 0;
+ rid.BlueShift := 0;
+ rid.AlphaShift := 0;
+
+ rid.MaskBitsPerPixel := 0;
+ rid.PaletteColorCount := 0;
+
+ aImage.DataDescription := rid;
+ aImage.CreateData;
+
+ srcMD := FormatDesc.CreateMappingData;
+ try
+ FormatDesc.PreparePixel(Pixel);
+ src := Data;
+ dst := aImage.PixelData;
+ for y := 0 to Height-1 do
+ for x := 0 to Width-1 do begin
+ FormatDesc.Unmap(src, Pixel, srcMD);
+ case rid.BitsPerPixel of
+ 8: begin
+ dst^ := Pixel.Data.a;
+ inc(dst);
+ end;
+ 16: begin
+ PWord(dst)^ := Pixel.Data.a;
+ inc(dst, 2);
+ end;
+ 24: begin
+ PByteArray(dst)^[0] := PByteArray(@Pixel.Data.a)^[0];
+ PByteArray(dst)^[1] := PByteArray(@Pixel.Data.a)^[1];
+ PByteArray(dst)^[2] := PByteArray(@Pixel.Data.a)^[2];
+ inc(dst, 3);
+ end;
+ 32: begin
+ PCardinal(dst)^ := Pixel.Data.a;
+ inc(dst, 4);
+ end;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
+ end;
+ finally
+ FormatDesc.FreeMappingData(srcMD);
+ end;
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ tex: TglBitmap2D;
+begin
+ tex := TglBitmap2D.Create;
+ try
+ tex.AssignFromLazIntfImage(aImage);
+ result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
+ finally
+ tex.Free;
+ end;
+end;
+{$ENDIF}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar;
+ const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ rs: TResourceStream;
+begin
+ PrepareResType(aResource, aResType);
+ rs := TResourceStream.Create(aInstance, aResource, aResType);
+ try
+ result := AddAlphaFromStream(rs, aFunc, aArgs);
+ finally
+ rs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
+ const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ rs: TResourceStream;
+begin
+ rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
+ try
+ result := AddAlphaFromStream(rs, aFunc, aArgs);
+ finally
+ rs.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+begin
+ if TFormatDescriptor.Get(Format).IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ result := AddFunc(Self, aFunc, false, TFormatDescriptor.Get(Format).WithAlpha, aArgs);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ FS: TFileStream;
+begin
+ FS := TFileStream.Create(aFileName, fmOpenRead);
+ try
+ result := AddAlphaFromStream(FS, aFunc, aArgs);
+ finally
+ FS.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ tex: TglBitmap2D;
+begin
+ tex := TglBitmap2D.Create(aStream);
+ try
+ result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
+ finally
+ tex.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ DestData, DestData2, SourceData: pByte;
+ TempHeight, TempWidth: Integer;
+ SourceFD, DestFD: TFormatDescriptor;
+ SourceMD, DestMD, DestMD2: Pointer;
+
+ FuncRec: TglBitmapFunctionRec;
+begin
+ result := false;
+
+ Assert(Assigned(Data));
+ Assert(Assigned(aBitmap));
+ Assert(Assigned(aBitmap.Data));
+
+ if ((aBitmap.Width = Width) and (aBitmap.Height = Height)) then begin
+ result := ConvertTo(TFormatDescriptor.Get(Format).WithAlpha);
+
+ SourceFD := TFormatDescriptor.Get(aBitmap.Format);
+ DestFD := TFormatDescriptor.Get(Format);
+
+ if not Assigned(aFunc) then begin
+ aFunc := glBitmapAlphaFunc;
+ FuncRec.Args := {%H-}Pointer(SourceFD.HasAlpha);
+ end else
+ FuncRec.Args := aArgs;
+
+ // Values
+ TempHeight := aBitmap.FileHeight;
+ TempWidth := aBitmap.FileWidth;
+
+ FuncRec.Sender := Self;
+ FuncRec.Size := Dimension;
+ FuncRec.Position.Fields := FuncRec.Size.Fields;
+
+ DestData := Data;
+ DestData2 := Data;
+ SourceData := aBitmap.Data;
+
+ // Mapping
+ SourceFD.PreparePixel(FuncRec.Source);
+ DestFD.PreparePixel (FuncRec.Dest);
+
+ SourceMD := SourceFD.CreateMappingData;
+ DestMD := DestFD.CreateMappingData;
+ DestMD2 := DestFD.CreateMappingData;
+ try
+ FuncRec.Position.Y := 0;
+ while FuncRec.Position.Y < TempHeight do begin
+ FuncRec.Position.X := 0;
+ while FuncRec.Position.X < TempWidth do begin
+ SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
+ DestFD.Unmap (DestData, FuncRec.Dest, DestMD);
+ aFunc(FuncRec);
+ DestFD.Map(FuncRec.Dest, DestData2, DestMD2);
+ inc(FuncRec.Position.X);
+ end;
+ inc(FuncRec.Position.Y);
+ end;
+ finally
+ SourceFD.FreeMappingData(SourceMD);
+ DestFD.FreeMappingData(DestMD);
+ DestFD.FreeMappingData(DestMD2);
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte): Boolean;
+begin
+ result := AddAlphaFromColorKeyFloat(aRed / $FF, aGreen / $FF, aBlue / $FF, aDeviation / $FF);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
+ result := AddAlphaFromColorKeyFloat(
+ aRed / PixelData.Range.r,
+ aGreen / PixelData.Range.g,
+ aBlue / PixelData.Range.b,
+ aDeviation / Max(PixelData.Range.r, Max(PixelData.Range.g, PixelData.Range.b)));
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single): Boolean;
+var
+ values: array[0..2] of Single;
+ tmp: Cardinal;
+ i: Integer;
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
+ with PixelData do begin
+ values[0] := aRed;
+ values[1] := aGreen;
+ values[2] := aBlue;
+
+ for i := 0 to 2 do begin
+ tmp := Trunc(Range.arr[i] * aDeviation);
+ Data.arr[i] := Min(Range.arr[i], Trunc(Range.arr[i] * values[i] + tmp));
+ Range.arr[i] := Max(0, Trunc(Range.arr[i] * values[i] - tmp));
+ end;
+ Data.a := 0;
+ Range.a := 0;
+ end;
+ result := AddAlphaFromFunc(glBitmapColorKeyAlphaFunc, @PixelData);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromValue(const aAlpha: Byte): Boolean;
+begin
+ result := AddAlphaFromValueFloat(aAlpha / $FF);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
+ result := AddAlphaFromValueFloat(aAlpha / PixelData.Range.a);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
+ with PixelData do
+ Data.a := Min(Range.a, Max(0, Round(Range.a * aAlpha)));
+ result := AddAlphaFromFunc(glBitmapValueAlphaFunc, @PixelData.Data.a);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.RemoveAlpha: Boolean;
+var
+ FormatDesc: TFormatDescriptor;
+begin
+ result := false;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if Assigned(Data) then begin
+ if FormatDesc.IsCompressed or not FormatDesc.HasAlpha then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ result := ConvertTo(FormatDesc.WithoutAlpha);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.Clone: TglBitmap;
+var
+ Temp: TglBitmap;
+ TempPtr: PByte;
+ Size: Integer;
+begin
+ result := nil;
+ Temp := (ClassType.Create as TglBitmap);
+ try
+ // copy texture data if assigned
+ if Assigned(Data) then begin
+ Size := TFormatDescriptor.Get(Format).GetSize(fDimension);
+ GetMem(TempPtr, Size);
+ try
+ Move(Data^, TempPtr^, Size);
+ Temp.SetDataPointer(TempPtr, Format, Width, Height); //be careful, Data could be freed by this method
+ except
+ if Assigned(TempPtr) then
+ FreeMem(TempPtr);
+ raise;
+ end;
+ end else begin
+ TempPtr := nil;
+ Temp.SetDataPointer(TempPtr, Format, Width, Height); //be careful, Data could be freed by this method
+ end;
+
+ // copy properties
+ Temp.fID := ID;
+ Temp.fTarget := Target;
+ Temp.fFormat := Format;
+ Temp.fMipMap := MipMap;
+ Temp.fAnisotropic := Anisotropic;
+ Temp.fBorderColor := fBorderColor;
+ Temp.fDeleteTextureOnFree := DeleteTextureOnFree;
+ Temp.fFreeDataAfterGenTexture := FreeDataAfterGenTexture;
+ Temp.fFilterMin := fFilterMin;
+ Temp.fFilterMag := fFilterMag;
+ Temp.fWrapS := fWrapS;
+ Temp.fWrapT := fWrapT;
+ Temp.fWrapR := fWrapR;
+ Temp.fFilename := fFilename;
+ Temp.fCustomName := fCustomName;
+ Temp.fCustomNameW := fCustomNameW;
+ Temp.fCustomData := fCustomData;
+
+ result := Temp;
+ except
+ FreeAndNil(Temp);
+ raise;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.ConvertTo(const aFormat: TglBitmapFormat): Boolean;
+var
+ SourceFD, DestFD: TFormatDescriptor;
+ SourcePD, DestPD: TglBitmapPixelData;
+ ShiftData: TShiftData;
+
+ function CanCopyDirect: Boolean;
+ begin
+ result :=
+ ((SourcePD.Range.r = DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
+ ((SourcePD.Range.g = DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
+ ((SourcePD.Range.b = DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
+ ((SourcePD.Range.a = DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
+ end;
+
+ function CanShift: Boolean;
+ begin
+ result :=
+ ((SourcePD.Range.r >= DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
+ ((SourcePD.Range.g >= DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
+ ((SourcePD.Range.b >= DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
+ ((SourcePD.Range.a >= DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
+ end;
+
+ function GetShift(aSource, aDest: Cardinal) : ShortInt;
+ begin
+ result := 0;
+ while (aSource > aDest) and (aSource > 0) do begin
+ inc(result);
+ aSource := aSource shr 1;
+ end;
+ end;
+
+begin
+ if (aFormat <> fFormat) and (aFormat <> tfEmpty) then begin
+ SourceFD := TFormatDescriptor.Get(Format);
+ DestFD := TFormatDescriptor.Get(aFormat);
+
+ SourceFD.PreparePixel(SourcePD);
+ DestFD.PreparePixel (DestPD);
+
+ if CanCopyDirect then
+ result := AddFunc(Self, glBitmapConvertCopyFunc, false, aFormat)
+ else if CanShift then begin
+ ShiftData.r := GetShift(SourcePD.Range.r, DestPD.Range.r);
+ ShiftData.g := GetShift(SourcePD.Range.g, DestPD.Range.g);
+ ShiftData.b := GetShift(SourcePD.Range.b, DestPD.Range.b);
+ ShiftData.a := GetShift(SourcePD.Range.a, DestPD.Range.a);
+ result := AddFunc(Self, glBitmapConvertShiftRGBAFunc, false, aFormat, @ShiftData);
+ end else
+ result := AddFunc(Self, glBitmapConvertCalculateRGBAFunc, false, aFormat);
+ end else
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.Invert(const aUseRGB: Boolean; const aUseAlpha: Boolean);
+begin
+ if aUseRGB or aUseAlpha then
+ AddFunc(glBitmapInvertFunc, false, {%H-}Pointer(
+ ((Byte(aUseAlpha) and 1) shl 1) or
+ (Byte(aUseRGB) and 1) ));
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
+begin
+ fBorderColor[0] := aRed;
+ fBorderColor[1] := aGreen;
+ fBorderColor[2] := aBlue;
+ fBorderColor[3] := aAlpha;
+ if (ID > 0) then begin
+ Bind(false);
+ glTexParameterfv(Target, GL_TEXTURE_BORDER_COLOR, @fBorderColor[0]);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.FreeData;
+var
+ TempPtr: PByte;
+begin
+ TempPtr := nil;
+ SetDataPointer(TempPtr, tfEmpty); //be careful, Data could be freed by this method
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.FillWithColor(const aRed, aGreen, aBlue: Byte;
+ const aAlpha: Byte);
+begin
+ FillWithColorFloat(aRed/$FF, aGreen/$FF, aBlue/$FF, aAlpha/$FF);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal);
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
+ FillWithColorFloat(
+ aRed / PixelData.Range.r,
+ aGreen / PixelData.Range.g,
+ aBlue / PixelData.Range.b,
+ aAlpha / PixelData.Range.a);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha: Single);
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.Get(Format).PreparePixel(PixelData);
+ with PixelData do begin
+ Data.r := Max(0, Min(Range.r, Trunc(Range.r * aRed)));
+ Data.g := Max(0, Min(Range.g, Trunc(Range.g * aGreen)));
+ Data.b := Max(0, Min(Range.b, Trunc(Range.b * aBlue)));
+ Data.a := Max(0, Min(Range.a, Trunc(Range.a * aAlpha)));
+ end;
+ AddFunc(glBitmapFillWithColorFunc, false, @PixelData);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetFilter(const aMin, aMag: GLenum);
+begin
+ //check MIN filter
+ case aMin of
+ GL_NEAREST:
+ fFilterMin := GL_NEAREST;
+ GL_LINEAR:
+ fFilterMin := GL_LINEAR;
+ GL_NEAREST_MIPMAP_NEAREST:
+ fFilterMin := GL_NEAREST_MIPMAP_NEAREST;
+ GL_LINEAR_MIPMAP_NEAREST:
+ fFilterMin := GL_LINEAR_MIPMAP_NEAREST;
+ GL_NEAREST_MIPMAP_LINEAR:
+ fFilterMin := GL_NEAREST_MIPMAP_LINEAR;
+ GL_LINEAR_MIPMAP_LINEAR:
+ fFilterMin := GL_LINEAR_MIPMAP_LINEAR;
+ else
+ raise EglBitmap.Create('SetFilter - Unknow MIN filter.');
+ end;
+
+ //check MAG filter
+ case aMag of
+ GL_NEAREST:
+ fFilterMag := GL_NEAREST;
+ GL_LINEAR:
+ fFilterMag := GL_LINEAR;
+ else
+ raise EglBitmap.Create('SetFilter - Unknow MAG filter.');
+ end;
+
+ //apply filter
+ if (ID > 0) then begin
+ Bind(false);
+ glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, fFilterMag);
+
+ if (MipMap = mmNone) or (Target = GL_TEXTURE_RECTANGLE) then begin
+ case fFilterMin of
+ GL_NEAREST, GL_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
+ GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ end;
+ end else
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetWrap(const S: GLenum; const T: GLenum; const R: GLenum);
+
+ procedure CheckAndSetWrap(const aValue: Cardinal; var aTarget: Cardinal);
+ begin
+ case aValue of
+ GL_CLAMP:
+ aTarget := GL_CLAMP;
+
+ GL_REPEAT:
+ aTarget := GL_REPEAT;
+
+ GL_CLAMP_TO_EDGE: begin
+ if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
+ aTarget := GL_CLAMP_TO_EDGE
+ else
+ aTarget := GL_CLAMP;
+ end;
+
+ GL_CLAMP_TO_BORDER: begin
+ if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
+ aTarget := GL_CLAMP_TO_BORDER
+ else
+ aTarget := GL_CLAMP;
+ end;
+
+ GL_MIRRORED_REPEAT: begin
+ if GL_VERSION_1_4 or GL_ARB_texture_mirrored_repeat or GL_IBM_texture_mirrored_repeat then
+ aTarget := GL_MIRRORED_REPEAT
+ else
+ raise EglBitmap.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
+ end;
+ else
+ raise EglBitmap.Create('SetWrap - Unknow Texturewrap');
+ end;
+ end;
+
+begin
+ CheckAndSetWrap(S, fWrapS);
+ CheckAndSetWrap(T, fWrapT);
+ CheckAndSetWrap(R, fWrapR);
+
+ if (ID > 0) then begin
+ Bind(false);
+ glTexParameteri(Target, GL_TEXTURE_WRAP_S, fWrapS);
+ glTexParameteri(Target, GL_TEXTURE_WRAP_T, fWrapT);
+ glTexParameteri(Target, GL_TEXTURE_WRAP_R, fWrapR);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetSwizzle(const r, g, b, a: GLenum);
+
+ procedure CheckAndSetValue(const aValue: GLenum; const aIndex: Integer);
+ begin
+ if (aValue = GL_ZERO) or (aValue = GL_ONE) or (aValue = GL_ALPHA) or
+ (aValue = GL_RED) or (aValue = GL_GREEN) or (aValue = GL_BLUE) then
+ fSwizzle[aIndex] := aValue
+ else
+ raise EglBitmap.Create('SetSwizzle - Unknow Swizle Value');
+ end;
+
+begin
+ if not (GL_ARB_texture_swizzle or GL_EXT_texture_swizzle or GL_VERSION_3_3) then
+ raise EglBitmapNotSupported.Create('texture swizzle is not supported');
+ CheckAndSetValue(r, 0);
+ CheckAndSetValue(g, 1);
+ CheckAndSetValue(b, 2);
+ CheckAndSetValue(a, 3);
+
+ if (ID > 0) then begin
+ Bind(false);
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_RGBA, PGLint(@fSwizzle[0]));
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.Bind(const aEnableTextureUnit: Boolean);
+begin
+ if aEnableTextureUnit then
+ glEnable(Target);
+ if (ID > 0) then
+ glBindTexture(Target, ID);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.Unbind(const aDisableTextureUnit: Boolean);
+begin
+ if aDisableTextureUnit then
+ glDisable(Target);
+ glBindTexture(Target, 0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create;
+begin
+ if (ClassType = TglBitmap) then
+ raise EglBitmap.Create('Don''t create TglBitmap directly. Use one of the deviated classes (TglBitmap2D) instead.');
+{$IFDEF GLB_NATIVE_OGL}
+ glbReadOpenGLExtensions;
+{$ENDIF}
+ inherited Create;
+ fFormat := glBitmapGetDefaultFormat;
+ fFreeDataOnDestroy := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aFileName: String);
+begin
+ Create;
+ LoadFromFile(aFileName);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aStream: TStream);
+begin
+ Create;
+ LoadFromStream(aStream);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; aData: PByte);
+var
+ ImageSize: Integer;
+begin
+ Create;
+ if not Assigned(aData) then begin
+ ImageSize := TFormatDescriptor.Get(aFormat).GetSize(aSize);
+ GetMem(aData, ImageSize);
+ try
+ FillChar(aData^, ImageSize, #$FF);
+ SetDataPointer(aData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
+ except
+ if Assigned(aData) then
+ FreeMem(aData);
+ raise;
+ end;
+ end else begin
+ SetDataPointer(aData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
+ fFreeDataOnDestroy := false;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer);
+begin
+ Create;
+ LoadFromFunc(aSize, aFunc, aFormat, aArgs);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar);
+begin
+ Create;
+ LoadFromResource(aInstance, aResource, aResType);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmap.Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+begin
+ Create;
+ LoadFromResourceID(aInstance, aResourceID, aResType);
+end;
+
+{$IFDEF GLB_SUPPORT_PNG_READ}
+{$IF DEFINED(GLB_LAZ_PNG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//PNG/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
+const
+ MAGIC_LEN = 8;
+ PNG_MAGIC: String[MAGIC_LEN] = #$89#$50#$4E#$47#$0D#$0A#$1A#$0A;
+var
+ reader: TLazReaderPNG;
+ intf: TLazIntfImage;
+ StreamPos: Int64;
+ magic: String[MAGIC_LEN];
+begin
+ result := true;
+ StreamPos := aStream.Position;
+
+ SetLength(magic, MAGIC_LEN);
+ aStream.Read(magic[1], MAGIC_LEN);
+ aStream.Position := StreamPos;
+ if (magic <> PNG_MAGIC) then begin
+ result := false;
+ exit;
+ end;
+
+ intf := TLazIntfImage.Create(0, 0);
+ reader := TLazReaderPNG.Create;
+ try try
+ reader.UpdateDescription := true;
+ reader.ImageRead(aStream, intf);
+ AssignFromLazIntfImage(intf);
+ except
+ result := false;
+ aStream.Position := StreamPos;
+ exit;
+ end;
+ finally
+ reader.Free;
+ intf.Free;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
+var
+ Surface: PSDL_Surface;
+ RWops: PSDL_RWops;
+begin
+ result := false;
+ RWops := glBitmapCreateRWops(aStream);
+ try
+ if IMG_isPNG(RWops) > 0 then begin
+ Surface := IMG_LoadPNG_RW(RWops);
+ try
+ AssignFromSurface(Surface);
+ result := true;
+ finally
+ SDL_FreeSurface(Surface);
+ end;
+ end;
+ finally
+ SDL_FreeRW(RWops);
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_LIB_PNG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmap_libPNG_read_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
+begin
+ TStream(png_get_io_ptr(png)).Read(buffer^, size);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
+var
+ StreamPos: Int64;
+ signature: array [0..7] of byte;
+ png: png_structp;
+ png_info: png_infop;
+
+ TempHeight, TempWidth: Integer;
+ Format: TglBitmapFormat;
+
+ png_data: pByte;
+ png_rows: array of pByte;
+ Row, LineSize: Integer;
+begin
+ result := false;
+
+ if not init_libPNG then
+ raise Exception.Create('LoadPNG - unable to initialize libPNG.');
+
+ try
+ // signature
+ StreamPos := aStream.Position;
+ aStream.Read(signature{%H-}, 8);
+ aStream.Position := StreamPos;
+
+ if png_check_sig(@signature, 8) <> 0 then begin
+ // png read struct
+ png := png_create_read_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
+ if png = nil then
+ raise EglBitmapException.Create('LoadPng - couldn''t create read struct.');
+
+ // png info
+ png_info := png_create_info_struct(png);
+ if png_info = nil then begin
+ png_destroy_read_struct(@png, nil, nil);
+ raise EglBitmapException.Create('LoadPng - couldn''t create info struct.');
+ end;
+
+ // set read callback
+ png_set_read_fn(png, aStream, glBitmap_libPNG_read_func);
+
+ // read informations
+ png_read_info(png, png_info);
+
+ // size
+ TempHeight := png_get_image_height(png, png_info);
+ TempWidth := png_get_image_width(png, png_info);
+
+ // format
+ case png_get_color_type(png, png_info) of
+ PNG_COLOR_TYPE_GRAY:
+ Format := tfLuminance8;
+ PNG_COLOR_TYPE_GRAY_ALPHA:
+ Format := tfLuminance8Alpha8;
+ PNG_COLOR_TYPE_RGB:
+ Format := tfRGB8;
+ PNG_COLOR_TYPE_RGB_ALPHA:
+ Format := tfRGBA8;
+ else
+ raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+
+ // cut upper 8 bit from 16 bit formats
+ if png_get_bit_depth(png, png_info) > 8 then
+ png_set_strip_16(png);
+
+ // expand bitdepth smaller than 8
+ if png_get_bit_depth(png, png_info) < 8 then
+ png_set_expand(png);
+
+ // allocating mem for scanlines
+ LineSize := png_get_rowbytes(png, png_info);
+ GetMem(png_data, TempHeight * LineSize);
+ try
+ SetLength(png_rows, TempHeight);
+ for Row := Low(png_rows) to High(png_rows) do begin
+ png_rows[Row] := png_data;
+ Inc(png_rows[Row], Row * LineSize);
+ end;
+
+ // read complete image into scanlines
+ png_read_image(png, @png_rows[0]);
+
+ // read end
+ png_read_end(png, png_info);
+
+ // destroy read struct
+ png_destroy_read_struct(@png, @png_info, nil);
+
+ SetLength(png_rows, 0);
+
+ // set new data
+ SetDataPointer(png_data, Format, TempWidth, TempHeight); //be careful, Data could be freed by this method
+
+ result := true;
+ except
+ if Assigned(png_data) then
+ FreeMem(png_data);
+ raise;
+ end;
+ end;
+ finally
+ quit_libPNG;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_PNGIMAGE)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
+var
+ StreamPos: Int64;
+ Png: TPNGObject;
+ Header: String[8];
+ Row, Col, PixSize, LineSize: Integer;
+ NewImage, pSource, pDest, pAlpha: pByte;
+ PngFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+
+const
+ PngHeader: String[8] = #137#80#78#71#13#10#26#10;
+
+begin
+ result := false;
+
+ StreamPos := aStream.Position;
+ aStream.Read(Header[0], SizeOf(Header));
+ aStream.Position := StreamPos;
+
+ {Test if the header matches}
+ if Header = PngHeader then begin
+ Png := TPNGObject.Create;
+ try
+ Png.LoadFromStream(aStream);
+
+ case Png.Header.ColorType of
+ COLOR_GRAYSCALE:
+ PngFormat := tfLuminance8;
+ COLOR_GRAYSCALEALPHA:
+ PngFormat := tfLuminance8Alpha8;
+ COLOR_RGB:
+ PngFormat := tfBGR8;
+ COLOR_RGBALPHA:
+ PngFormat := tfBGRA8;
+ else
+ raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+
+ FormatDesc := TFormatDescriptor.Get(PngFormat);
+ PixSize := Round(FormatDesc.PixelSize);
+ LineSize := FormatDesc.GetSize(Png.Header.Width, 1);
+
+ GetMem(NewImage, LineSize * Integer(Png.Header.Height));
+ try
+ pDest := NewImage;
+
+ case Png.Header.ColorType of
+ COLOR_RGB, COLOR_GRAYSCALE:
+ begin
+ for Row := 0 to Png.Height -1 do begin
+ Move (Png.Scanline[Row]^, pDest^, LineSize);
+ Inc(pDest, LineSize);
+ end;
+ end;
+ COLOR_RGBALPHA, COLOR_GRAYSCALEALPHA:
+ begin
+ PixSize := PixSize -1;
+
+ for Row := 0 to Png.Height -1 do begin
+ pSource := Png.Scanline[Row];
+ pAlpha := pByte(Png.AlphaScanline[Row]);
+
+ for Col := 0 to Png.Width -1 do begin
+ Move (pSource^, pDest^, PixSize);
+ Inc(pSource, PixSize);
+ Inc(pDest, PixSize);
+
+ pDest^ := pAlpha^;
+ inc(pAlpha);
+ Inc(pDest);
+ end;
+ end;
+ end;
+ else
+ raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+
+ SetDataPointer(NewImage, PngFormat, Png.Header.Width, Png.Header.Height); //be careful, Data could be freed by this method
+
+ result := true;
+ except
+ if Assigned(NewImage) then
+ FreeMem(NewImage);
+ raise;
+ end;
+ finally
+ Png.Free;
+ end;
+ end;
+end;
+{$IFEND}
+{$ENDIF}
+
+{$IFDEF GLB_SUPPORT_PNG_WRITE}
+{$IFDEF GLB_LIB_PNG}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmap_libPNG_write_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
+begin
+ TStream(png_get_io_ptr(png)).Write(buffer^, size);
+end;
+{$ENDIF}
+
+{$IF DEFINED(GLB_LAZ_PNG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SavePNG(const aStream: TStream);
+var
+ png: TPortableNetworkGraphic;
+ intf: TLazIntfImage;
+ raw: TRawImage;
+begin
+ png := TPortableNetworkGraphic.Create;
+ intf := TLazIntfImage.Create(0, 0);
+ try
+ if not AssignToLazIntfImage(intf) then
+ raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
+ intf.GetRawImage(raw);
+ png.LoadFromRawImage(raw, false);
+ png.SaveToStream(aStream);
+ finally
+ png.Free;
+ intf.Free;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_LIB_PNG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SavePNG(const aStream: TStream);
+var
+ png: png_structp;
+ png_info: png_infop;
+ png_rows: array of pByte;
+ LineSize: Integer;
+ ColorType: Integer;
+ Row: Integer;
+ FormatDesc: TFormatDescriptor;
+begin
+ if not (ftPNG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ if not init_libPNG then
+ raise Exception.Create('unable to initialize libPNG.');
+
+ try
+ case Format of
+ tfAlpha8, tfLuminance8:
+ ColorType := PNG_COLOR_TYPE_GRAY;
+ tfLuminance8Alpha8:
+ ColorType := PNG_COLOR_TYPE_GRAY_ALPHA;
+ tfBGR8, tfRGB8:
+ ColorType := PNG_COLOR_TYPE_RGB;
+ tfBGRA8, tfRGBA8:
+ ColorType := PNG_COLOR_TYPE_RGBA;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
+
+ FormatDesc := TFormatDescriptor.Get(Format);
+ LineSize := FormatDesc.GetSize(Width, 1);
+
+ // creating array for scanline
+ SetLength(png_rows, Height);
+ try
+ for Row := 0 to Height - 1 do begin
+ png_rows[Row] := Data;
+ Inc(png_rows[Row], Row * LineSize)
+ end;
+
+ // write struct
+ png := png_create_write_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
+ if png = nil then
+ raise EglBitmapException.Create('SavePng - couldn''t create write struct.');
+
+ // create png info
+ png_info := png_create_info_struct(png);
+ if png_info = nil then begin
+ png_destroy_write_struct(@png, nil);
+ raise EglBitmapException.Create('SavePng - couldn''t create info struct.');
+ end;
+
+ // set read callback
+ png_set_write_fn(png, aStream, glBitmap_libPNG_write_func, nil);
+
+ // set compression
+ png_set_compression_level(png, 6);
+
+ if Format in [tfBGR8, tfBGRA8] then
+ png_set_bgr(png);
+
+ png_set_IHDR(png, png_info, Width, Height, 8, ColorType, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+ png_write_info(png, png_info);
+ png_write_image(png, @png_rows[0]);
+ png_write_end(png, png_info);
+ png_destroy_write_struct(@png, @png_info);
+ finally
+ SetLength(png_rows, 0);
+ end;
+ finally
+ quit_libPNG;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_PNGIMAGE)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SavePNG(const aStream: TStream);
+var
+ Png: TPNGObject;
+
+ pSource, pDest: pByte;
+ X, Y, PixSize: Integer;
+ ColorType: Cardinal;
+ Alpha: Boolean;
+
+ pTemp: pByte;
+ Temp: Byte;
+begin
+ if not (ftPNG in FormatGetSupportedFiles (Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ case Format of
+ tfAlpha8, tfLuminance8: begin
+ ColorType := COLOR_GRAYSCALE;
+ PixSize := 1;
+ Alpha := false;
+ end;
+ tfLuminance8Alpha8: begin
+ ColorType := COLOR_GRAYSCALEALPHA;
+ PixSize := 1;
+ Alpha := true;
+ end;
+ tfBGR8, tfRGB8: begin
+ ColorType := COLOR_RGB;
+ PixSize := 3;
+ Alpha := false;
+ end;
+ tfBGRA8, tfRGBA8: begin
+ ColorType := COLOR_RGBALPHA;
+ PixSize := 3;
+ Alpha := true
+ end;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
+
+ Png := TPNGObject.CreateBlank(ColorType, 8, Width, Height);
+ try
+ // Copy ImageData
+ pSource := Data;
+ for Y := 0 to Height -1 do begin
+ pDest := png.ScanLine[Y];
+ for X := 0 to Width -1 do begin
+ Move(pSource^, pDest^, PixSize);
+ Inc(pDest, PixSize);
+ Inc(pSource, PixSize);
+ if Alpha then begin
+ png.AlphaScanline[Y]^[X] := pSource^;
+ Inc(pSource);
+ end;
+ end;
+
+ // convert RGB line to BGR
+ if Format in [tfRGB8, tfRGBA8] then begin
+ pTemp := png.ScanLine[Y];
+ for X := 0 to Width -1 do begin
+ Temp := pByteArray(pTemp)^[0];
+ pByteArray(pTemp)^[0] := pByteArray(pTemp)^[2];
+ pByteArray(pTemp)^[2] := Temp;
+ Inc(pTemp, 3);
+ end;
+ end;
+ end;
+
+ // Save to Stream
+ Png.CompressionLevel := 6;
+ Png.SaveToStream(aStream);
+ finally
+ FreeAndNil(Png);
+ end;
+end;
+{$IFEND}
+{$ENDIF}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//JPEG////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+{$IFDEF GLB_LIB_JPEG}
+type
+ glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
+ glBitmap_libJPEG_source_mgr = record
+ pub: jpeg_source_mgr;
+
+ SrcStream: TStream;
+ SrcBuffer: array [1..4096] of byte;
+ end;
+
+ glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
+ glBitmap_libJPEG_dest_mgr = record
+ pub: jpeg_destination_mgr;
+
+ DestStream: TStream;
+ DestBuffer: array [1..4096] of byte;
+ end;
+
+procedure glBitmap_libJPEG_error_exit(cinfo: j_common_ptr); cdecl;
+begin
+ //DUMMY
+end;
+
+
+procedure glBitmap_libJPEG_output_message(cinfo: j_common_ptr); cdecl;
+begin
+ //DUMMY
+end;
+
+
+procedure glBitmap_libJPEG_init_source(cinfo: j_decompress_ptr); cdecl;
+begin
+ //DUMMY
+end;
+
+procedure glBitmap_libJPEG_term_source(cinfo: j_decompress_ptr); cdecl;
+begin
+ //DUMMY
+end;
+
+
+procedure glBitmap_libJPEG_init_destination(cinfo: j_compress_ptr); cdecl;
+begin
+ //DUMMY
+end;
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmap_libJPEG_fill_input_buffer(cinfo: j_decompress_ptr): boolean; cdecl;
+var
+ src: glBitmap_libJPEG_source_mgr_ptr;
+ bytes: integer;
+begin
+ src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
+
+ bytes := src^.SrcStream.Read(src^.SrcBuffer[1], 4096);
+ if (bytes <= 0) then begin
+ src^.SrcBuffer[1] := $FF;
+ src^.SrcBuffer[2] := JPEG_EOI;
+ bytes := 2;
+ end;
+
+ src^.pub.next_input_byte := @(src^.SrcBuffer[1]);
+ src^.pub.bytes_in_buffer := bytes;
+
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmap_libJPEG_skip_input_data(cinfo: j_decompress_ptr; num_bytes: Longint); cdecl;
+var
+ src: glBitmap_libJPEG_source_mgr_ptr;
+begin
+ src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
+
+ if num_bytes > 0 then begin
+ // wanted byte isn't in buffer so set stream position and read buffer
+ if num_bytes > src^.pub.bytes_in_buffer then begin
+ src^.SrcStream.Position := src^.SrcStream.Position + num_bytes - src^.pub.bytes_in_buffer;
+ src^.pub.fill_input_buffer(cinfo);
+ end else begin
+ // wanted byte is in buffer so only skip
+ inc(src^.pub.next_input_byte, num_bytes);
+ dec(src^.pub.bytes_in_buffer, num_bytes);
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function glBitmap_libJPEG_empty_output_buffer(cinfo: j_compress_ptr): boolean; cdecl;
+var
+ dest: glBitmap_libJPEG_dest_mgr_ptr;
+begin
+ dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
+
+ if dest^.pub.free_in_buffer < Cardinal(Length(dest^.DestBuffer)) then begin
+ // write complete buffer
+ dest^.DestStream.Write(dest^.DestBuffer[1], SizeOf(dest^.DestBuffer));
+
+ // reset buffer
+ dest^.pub.next_output_byte := @dest^.DestBuffer[1];
+ dest^.pub.free_in_buffer := Length(dest^.DestBuffer);
+ end;
+
+ result := true;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmap_libJPEG_term_destination(cinfo: j_compress_ptr); cdecl;
+var
+ Idx: Integer;
+ dest: glBitmap_libJPEG_dest_mgr_ptr;
+begin
+ dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
+
+ for Idx := Low(dest^.DestBuffer) to High(dest^.DestBuffer) do begin
+ // check for endblock
+ if (Idx < High(dest^.DestBuffer)) and (dest^.DestBuffer[Idx] = $FF) and (dest^.DestBuffer[Idx +1] = JPEG_EOI) then begin
+ // write endblock
+ dest^.DestStream.Write(dest^.DestBuffer[Idx], 2);
+
+ // leave
+ break;
+ end else
+ dest^.DestStream.Write(dest^.DestBuffer[Idx], 1);
+ end;
+end;
+{$ENDIF}
+
+{$IFDEF GLB_SUPPORT_JPEG_READ}
+{$IF DEFINED(GLB_LAZ_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+const
+ MAGIC_LEN = 2;
+ JPEG_MAGIC: String[MAGIC_LEN] = #$FF#$D8;
+var
+ intf: TLazIntfImage;
+ reader: TFPReaderJPEG;
+ StreamPos: Int64;
+ magic: String[MAGIC_LEN];
+begin
+ result := true;
+ StreamPos := aStream.Position;
+
+ SetLength(magic, MAGIC_LEN);
+ aStream.Read(magic[1], MAGIC_LEN);
+ aStream.Position := StreamPos;
+ if (magic <> JPEG_MAGIC) then begin
+ result := false;
+ exit;
+ end;
+
+ reader := TFPReaderJPEG.Create;
+ intf := TLazIntfImage.Create(0, 0);
+ try try
+ intf.DataDescription := GetDescriptionFromDevice(0, 0, 0);
+ reader.ImageRead(aStream, intf);
+ AssignFromLazIntfImage(intf);
+ except
+ result := false;
+ aStream.Position := StreamPos;
+ exit;
+ end;
+ finally
+ reader.Free;
+ intf.Free;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+var
+ Surface: PSDL_Surface;
+ RWops: PSDL_RWops;
+begin
+ result := false;
+
+ RWops := glBitmapCreateRWops(aStream);
+ try
+ if IMG_isJPG(RWops) > 0 then begin
+ Surface := IMG_LoadJPG_RW(RWops);
+ try
+ AssignFromSurface(Surface);
+ result := true;
+ finally
+ SDL_FreeSurface(Surface);
+ end;
+ end;
+ finally
+ SDL_FreeRW(RWops);
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_LIB_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+var
+ StreamPos: Int64;
+ Temp: array[0..1]of Byte;
+
+ jpeg: jpeg_decompress_struct;
+ jpeg_err: jpeg_error_mgr;
+
+ IntFormat: TglBitmapFormat;
+ pImage: pByte;
+ TempHeight, TempWidth: Integer;
+
+ pTemp: pByte;
+ Row: Integer;
+
+ FormatDesc: TFormatDescriptor;
+begin
+ result := false;
+
+ if not init_libJPEG then
+ raise Exception.Create('LoadJPG - unable to initialize libJPEG.');
+
+ try
+ // reading first two bytes to test file and set cursor back to begin
+ StreamPos := aStream.Position;
+ aStream.Read({%H-}Temp[0], 2);
+ aStream.Position := StreamPos;
+
+ // if Bitmap then read file.
+ if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
+ FillChar(jpeg{%H-}, SizeOf(jpeg_decompress_struct), $00);
+ FillChar(jpeg_err{%H-}, SizeOf(jpeg_error_mgr), $00);
+
+ // error managment
+ jpeg.err := jpeg_std_error(@jpeg_err);
+ jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
+ jpeg_err.output_message := glBitmap_libJPEG_output_message;
+
+ // decompression struct
+ jpeg_create_decompress(@jpeg);
+
+ // allocation space for streaming methods
+ jpeg.src := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_source_mgr));
+
+ // seeting up custom functions
+ with glBitmap_libJPEG_source_mgr_ptr(jpeg.src)^ do begin
+ pub.init_source := glBitmap_libJPEG_init_source;
+ pub.fill_input_buffer := glBitmap_libJPEG_fill_input_buffer;
+ pub.skip_input_data := glBitmap_libJPEG_skip_input_data;
+ pub.resync_to_restart := jpeg_resync_to_restart; // use default method
+ pub.term_source := glBitmap_libJPEG_term_source;
+
+ pub.bytes_in_buffer := 0; // forces fill_input_buffer on first read
+ pub.next_input_byte := nil; // until buffer loaded
+
+ SrcStream := aStream;
+ end;
+
+ // set global decoding state
+ jpeg.global_state := DSTATE_START;
+
+ // read header of jpeg
+ jpeg_read_header(@jpeg, false);
+
+ // setting output parameter
+ case jpeg.jpeg_color_space of
+ JCS_GRAYSCALE:
+ begin
+ jpeg.out_color_space := JCS_GRAYSCALE;
+ IntFormat := tfLuminance8;
+ end;
+ else
+ jpeg.out_color_space := JCS_RGB;
+ IntFormat := tfRGB8;
+ end;
+
+ // reading image
+ jpeg_start_decompress(@jpeg);
+
+ TempHeight := jpeg.output_height;
+ TempWidth := jpeg.output_width;
+
+ FormatDesc := TFormatDescriptor.Get(IntFormat);
+
+ // creating new image
+ GetMem(pImage, FormatDesc.GetSize(TempWidth, TempHeight));
+ try
+ pTemp := pImage;
+
+ for Row := 0 to TempHeight -1 do begin
+ jpeg_read_scanlines(@jpeg, @pTemp, 1);
+ Inc(pTemp, FormatDesc.GetSize(TempWidth, 1));
+ end;
+
+ // finish decompression
+ jpeg_finish_decompress(@jpeg);
+
+ // destroy decompression
+ jpeg_destroy_decompress(@jpeg);
+
+ SetDataPointer(pImage, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
+
+ result := true;
+ except
+ if Assigned(pImage) then
+ FreeMem(pImage);
+ raise;
+ end;
+ end;
+ finally
+ quit_libJPEG;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+var
+ bmp: TBitmap;
+ jpg: TJPEGImage;
+ StreamPos: Int64;
+ Temp: array[0..1]of Byte;
+begin
+ result := false;
+
+ // reading first two bytes to test file and set cursor back to begin
+ StreamPos := aStream.Position;
+ aStream.Read(Temp[0], 2);
+ aStream.Position := StreamPos;
+
+ // if Bitmap then read file.
+ if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
+ bmp := TBitmap.Create;
+ try
+ jpg := TJPEGImage.Create;
+ try
+ jpg.LoadFromStream(aStream);
+ bmp.Assign(jpg);
+ result := AssignFromBitmap(bmp);
+ finally
+ jpg.Free;
+ end;
+ finally
+ bmp.Free;
+ end;
+ end;
+end;
+{$IFEND}
+{$ENDIF}
+
+{$IFDEF GLB_SUPPORT_JPEG_WRITE}
+{$IF DEFINED(GLB_LAZ_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveJPEG(const aStream: TStream);
+var
+ jpeg: TJPEGImage;
+ intf: TLazIntfImage;
+ raw: TRawImage;
+begin
+ jpeg := TJPEGImage.Create;
+ intf := TLazIntfImage.Create(0, 0);
+ try
+ if not AssignToLazIntfImage(intf) then
+ raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
+ intf.GetRawImage(raw);
+ jpeg.LoadFromRawImage(raw, false);
+ jpeg.SaveToStream(aStream);
+ finally
+ intf.Free;
+ jpeg.Free;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_LIB_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveJPEG(const aStream: TStream);
+var
+ jpeg: jpeg_compress_struct;
+ jpeg_err: jpeg_error_mgr;
+ Row: Integer;
+ pTemp, pTemp2: pByte;
+
+ procedure CopyRow(pDest, pSource: pByte);
+ var
+ X: Integer;
+ begin
+ for X := 0 to Width - 1 do begin
+ pByteArray(pDest)^[0] := pByteArray(pSource)^[2];
+ pByteArray(pDest)^[1] := pByteArray(pSource)^[1];
+ pByteArray(pDest)^[2] := pByteArray(pSource)^[0];
+ Inc(pDest, 3);
+ Inc(pSource, 3);
+ end;
+ end;
+
+begin
+ if not (ftJPEG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ if not init_libJPEG then
+ raise Exception.Create('SaveJPG - unable to initialize libJPEG.');
+
+ try
+ FillChar(jpeg{%H-}, SizeOf(jpeg_compress_struct), $00);
+ FillChar(jpeg_err{%H-}, SizeOf(jpeg_error_mgr), $00);
+
+ // error managment
+ jpeg.err := jpeg_std_error(@jpeg_err);
+ jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
+ jpeg_err.output_message := glBitmap_libJPEG_output_message;
+
+ // compression struct
+ jpeg_create_compress(@jpeg);
+
+ // allocation space for streaming methods
+ jpeg.dest := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_dest_mgr));
+
+ // seeting up custom functions
+ with glBitmap_libJPEG_dest_mgr_ptr(jpeg.dest)^ do begin
+ pub.init_destination := glBitmap_libJPEG_init_destination;
+ pub.empty_output_buffer := glBitmap_libJPEG_empty_output_buffer;
+ pub.term_destination := glBitmap_libJPEG_term_destination;
+
+ pub.next_output_byte := @DestBuffer[1];
+ pub.free_in_buffer := Length(DestBuffer);
+
+ DestStream := aStream;
+ end;
+
+ // very important state
+ jpeg.global_state := CSTATE_START;
+ jpeg.image_width := Width;
+ jpeg.image_height := Height;
+ case Format of
+ tfAlpha8, tfLuminance8: begin
+ jpeg.input_components := 1;
+ jpeg.in_color_space := JCS_GRAYSCALE;
+ end;
+ tfRGB8, tfBGR8: begin
+ jpeg.input_components := 3;
+ jpeg.in_color_space := JCS_RGB;
+ end;
+ end;
+
+ jpeg_set_defaults(@jpeg);
+ jpeg_set_quality(@jpeg, 95, true);
+ jpeg_start_compress(@jpeg, true);
+ pTemp := Data;
+
+ if Format = tfBGR8 then
+ GetMem(pTemp2, fRowSize)
+ else
+ pTemp2 := pTemp;
+
+ try
+ for Row := 0 to jpeg.image_height -1 do begin
+ // prepare row
+ if Format = tfBGR8 then
+ CopyRow(pTemp2, pTemp)
+ else
+ pTemp2 := pTemp;
+
+ // write row
+ jpeg_write_scanlines(@jpeg, @pTemp2, 1);
+ inc(pTemp, fRowSize);
+ end;
+ finally
+ // free memory
+ if Format = tfBGR8 then
+ FreeMem(pTemp2);
+ end;
+ jpeg_finish_compress(@jpeg);
+ jpeg_destroy_compress(@jpeg);
+ finally
+ quit_libJPEG;
+ end;
+end;
+
+{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveJPEG(const aStream: TStream);
+var
+ Bmp: TBitmap;
+ Jpg: TJPEGImage;
+begin
+ if not (ftJPEG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ Bmp := TBitmap.Create;
+ try
+ Jpg := TJPEGImage.Create;
+ try
+ AssignToBitmap(Bmp);
+ if (Format in [tfAlpha8, tfLuminance8]) then begin
+ Jpg.Grayscale := true;
+ Jpg.PixelFormat := jf8Bit;
+ end;
+ Jpg.Assign(Bmp);
+ Jpg.SaveToStream(aStream);
+ finally
+ FreeAndNil(Jpg);
+ end;
+ finally
+ FreeAndNil(Bmp);
+ end;
+end;
+{$IFEND}
+{$ENDIF}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//BMP/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+const
+ BMP_MAGIC = $4D42;
+
+ BMP_COMP_RGB = 0;
+ BMP_COMP_RLE8 = 1;
+ BMP_COMP_RLE4 = 2;
+ BMP_COMP_BITFIELDS = 3;
+
+type
+ TBMPHeader = packed record
+ bfType: Word;
+ bfSize: Cardinal;
+ bfReserved1: Word;
+ bfReserved2: Word;
+ bfOffBits: Cardinal;
+ end;
+
+ TBMPInfo = packed record
+ biSize: Cardinal;
+ biWidth: Longint;
+ biHeight: Longint;
+ biPlanes: Word;
+ biBitCount: Word;
+ biCompression: Cardinal;
+ biSizeImage: Cardinal;
+ biXPelsPerMeter: Longint;
+ biYPelsPerMeter: Longint;
+ biClrUsed: Cardinal;
+ biClrImportant: Cardinal;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadBMP(const aStream: TStream): Boolean;
+
+ //////////////////////////////////////////////////////////////////////////////////////////////////
+ function ReadInfo(out aInfo: TBMPInfo; out aMask: TglBitmapColorRec): TglBitmapFormat;
+ begin
+ result := tfEmpty;
+ aStream.Read(aInfo{%H-}, SizeOf(aInfo));
+ FillChar(aMask{%H-}, SizeOf(aMask), 0);
+
+ //Read Compression
+ case aInfo.biCompression of
+ BMP_COMP_RLE4,
+ BMP_COMP_RLE8: begin
+ raise EglBitmap.Create('RLE compression is not supported');
+ end;
+ BMP_COMP_BITFIELDS: begin
+ if (aInfo.biBitCount = 16) or (aInfo.biBitCount = 32) then begin
+ aStream.Read(aMask.r, SizeOf(aMask.r));
+ aStream.Read(aMask.g, SizeOf(aMask.g));
+ aStream.Read(aMask.b, SizeOf(aMask.b));
+ aStream.Read(aMask.a, SizeOf(aMask.a));
+ end else
+ raise EglBitmap.Create('Bitfields are only supported for 16bit and 32bit formats');
+ end;
+ end;
+
+ //get suitable format
+ case aInfo.biBitCount of
+ 8: result := tfLuminance8;
+ 16: result := tfBGR5;
+ 24: result := tfBGR8;
+ 32: result := tfBGRA8;
+ end;
+ end;
+
+ function ReadColorTable(var aFormat: TglBitmapFormat; const aInfo: TBMPInfo): TbmpColorTableFormat;
+ var
+ i, c: Integer;
+ ColorTable: TbmpColorTable;
+ begin
+ result := nil;
+ if (aInfo.biBitCount >= 16) then
+ exit;
+ aFormat := tfLuminance8;
+ c := aInfo.biClrUsed;
+ if (c = 0) then
+ c := 1 shl aInfo.biBitCount;
+ SetLength(ColorTable, c);
+ for i := 0 to c-1 do begin
+ aStream.Read(ColorTable[i], SizeOf(TbmpColorTableEnty));
+ if (ColorTable[i].r <> ColorTable[i].g) or (ColorTable[i].g <> ColorTable[i].b) then
+ aFormat := tfRGB8;
+ end;
+
+ result := TbmpColorTableFormat.Create;
+ result.PixelSize := aInfo.biBitCount / 8;
+ result.ColorTable := ColorTable;
+ result.Range := glBitmapColorRec($FF, $FF, $FF, $00);
+ end;
+
+ //////////////////////////////////////////////////////////////////////////////////////////////////
+ function CheckBitfields(var aFormat: TglBitmapFormat; const aMask: TglBitmapColorRec;
+ const aInfo: TBMPInfo): TbmpBitfieldFormat;
+ var
+ TmpFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+ begin
+ result := nil;
+ if (aMask.r <> 0) or (aMask.g <> 0) or (aMask.b <> 0) or (aMask.a <> 0) then begin
+ for TmpFormat := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
+ FormatDesc := TFormatDescriptor.Get(TmpFormat);
+ if FormatDesc.MaskMatch(aMask.r, aMask.g, aMask.b, aMask.a) then begin
+ aFormat := FormatDesc.Format;
+ exit;
+ end;
+ end;
+
+ if (aMask.a = 0) and TFormatDescriptor.Get(aFormat).HasAlpha then
+ aFormat := TFormatDescriptor.Get(aFormat).WithoutAlpha;
+ if (aMask.a <> 0) and not TFormatDescriptor.Get(aFormat).HasAlpha then
+ aFormat := TFormatDescriptor.Get(aFormat).WithAlpha;
+
+ result := TbmpBitfieldFormat.Create;
+ result.PixelSize := aInfo.biBitCount / 8;
+ result.RedMask := aMask.r;
+ result.GreenMask := aMask.g;
+ result.BlueMask := aMask.b;
+ result.AlphaMask := aMask.a;
+ end;
+ end;
+
+var
+ //simple types
+ StartPos: Int64;
+ ImageSize, rbLineSize, wbLineSize, Padding, i: Integer;
+ PaddingBuff: Cardinal;
+ LineBuf, ImageData, TmpData: PByte;
+ SourceMD, DestMD: Pointer;
+ BmpFormat: TglBitmapFormat;
+
+ //records
+ Mask: TglBitmapColorRec;
+ Header: TBMPHeader;
+ Info: TBMPInfo;
+
+ //classes
+ SpecialFormat: TFormatDescriptor;
+ FormatDesc: TFormatDescriptor;
+
+ //////////////////////////////////////////////////////////////////////////////////////////////////
+ procedure SpecialFormatReadLine(aData: PByte; aLineBuf: PByte);
+ var
+ i: Integer;
+ Pixel: TglBitmapPixelData;
+ begin
+ aStream.Read(aLineBuf^, rbLineSize);
+ SpecialFormat.PreparePixel(Pixel);
+ for i := 0 to Info.biWidth-1 do begin
+ SpecialFormat.Unmap(aLineBuf, Pixel, SourceMD);
+ glBitmapConvertPixel(Pixel, SpecialFormat, FormatDesc);
+ FormatDesc.Map(Pixel, aData, DestMD);
+ end;
+ end;
+
+begin
+ result := false;
+ BmpFormat := tfEmpty;
+ SpecialFormat := nil;
+ LineBuf := nil;
+ SourceMD := nil;
+ DestMD := nil;
+
+ // Header
+ StartPos := aStream.Position;
+ aStream.Read(Header{%H-}, SizeOf(Header));
+
+ if Header.bfType = BMP_MAGIC then begin
+ try try
+ BmpFormat := ReadInfo(Info, Mask);
+ SpecialFormat := ReadColorTable(BmpFormat, Info);
+ if not Assigned(SpecialFormat) then
+ SpecialFormat := CheckBitfields(BmpFormat, Mask, Info);
+ aStream.Position := StartPos + Header.bfOffBits;
+
+ if (BmpFormat <> tfEmpty) then begin
+ FormatDesc := TFormatDescriptor.Get(BmpFormat);
+ rbLineSize := Round(Info.biWidth * Info.biBitCount / 8); //ReadBuffer LineSize
+ wbLineSize := Trunc(Info.biWidth * FormatDesc.PixelSize);
+ Padding := (((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3) - rbLineSize;
+
+ //get Memory
+ DestMD := FormatDesc.CreateMappingData;
+ ImageSize := FormatDesc.GetSize(Info.biWidth, abs(Info.biHeight));
+ GetMem(ImageData, ImageSize);
+ if Assigned(SpecialFormat) then begin
+ GetMem(LineBuf, rbLineSize); //tmp Memory for converting Bitfields
+ SourceMD := SpecialFormat.CreateMappingData;
+ end;
+
+ //read Data
+ try try
+ FillChar(ImageData^, ImageSize, $FF);
+ TmpData := ImageData;
+ if (Info.biHeight > 0) then
+ Inc(TmpData, wbLineSize * (Info.biHeight-1));
+ for i := 0 to Abs(Info.biHeight)-1 do begin
+ if Assigned(SpecialFormat) then
+ SpecialFormatReadLine(TmpData, LineBuf) //if is special format read and convert data
+ else
+ aStream.Read(TmpData^, wbLineSize); //else only read data
+ if (Info.biHeight > 0) then
+ dec(TmpData, wbLineSize)
+ else
+ inc(TmpData, wbLineSize);
+ aStream.Read(PaddingBuff{%H-}, Padding);
+ end;
+ SetDataPointer(ImageData, BmpFormat, Info.biWidth, abs(Info.biHeight)); //be careful, Data could be freed by this method
+ result := true;
+ finally
+ if Assigned(LineBuf) then
+ FreeMem(LineBuf);
+ if Assigned(SourceMD) then
+ SpecialFormat.FreeMappingData(SourceMD);
+ FormatDesc.FreeMappingData(DestMD);
+ end;
+ except
+ if Assigned(ImageData) then
+ FreeMem(ImageData);
+ raise;
+ end;
+ end else
+ raise EglBitmap.Create('LoadBMP - No suitable format found');
+ except
+ aStream.Position := StartPos;
+ raise;
+ end;
+ finally
+ FreeAndNil(SpecialFormat);
+ end;
+ end
+ else aStream.Position := StartPos;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveBMP(const aStream: TStream);
+var
+ Header: TBMPHeader;
+ Info: TBMPInfo;
+ Converter: TFormatDescriptor;
+ FormatDesc: TFormatDescriptor;
+ SourceFD, DestFD: Pointer;
+ pData, srcData, dstData, ConvertBuffer: pByte;
+
+ Pixel: TglBitmapPixelData;
+ ImageSize, wbLineSize, rbLineSize, Padding, LineIdx, PixelIdx: Integer;
+ RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
+
+ PaddingBuff: Cardinal;
+
+ function GetLineWidth : Integer;
+ begin
+ result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
+ end;
+
+begin
+ if not (ftBMP in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ Converter := nil;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ ImageSize := FormatDesc.GetSize(Dimension);
+
+ FillChar(Header{%H-}, SizeOf(Header), 0);
+ Header.bfType := BMP_MAGIC;
+ Header.bfSize := SizeOf(Header) + SizeOf(Info) + ImageSize;
+ Header.bfReserved1 := 0;
+ Header.bfReserved2 := 0;
+ Header.bfOffBits := SizeOf(Header) + SizeOf(Info);
+
+ FillChar(Info{%H-}, SizeOf(Info), 0);
+ Info.biSize := SizeOf(Info);
+ Info.biWidth := Width;
+ Info.biHeight := Height;
+ Info.biPlanes := 1;
+ Info.biCompression := BMP_COMP_RGB;
+ Info.biSizeImage := ImageSize;
+
+ try
+ case Format of
+ tfLuminance4: begin
+ Info.biBitCount := 4;
+ Header.bfSize := Header.bfSize + 16 * SizeOf(Cardinal);
+ Header.bfOffBits := Header.bfOffBits + 16 * SizeOf(Cardinal); //16 ColorTable entries
+ Converter := TbmpColorTableFormat.Create;
+ with (Converter as TbmpColorTableFormat) do begin
+ PixelSize := 0.5;
+ Format := Format;
+ Range := glBitmapColorRec($F, $F, $F, $0);
+ CreateColorTable;
+ end;
+ end;
+
+ tfR3G3B2, tfLuminance8: begin
+ Info.biBitCount := 8;
+ Header.bfSize := Header.bfSize + 256 * SizeOf(Cardinal);
+ Header.bfOffBits := Header.bfOffBits + 256 * SizeOf(Cardinal); //256 ColorTable entries
+ Converter := TbmpColorTableFormat.Create;
+ with (Converter as TbmpColorTableFormat) do begin
+ PixelSize := 1;
+ Format := Format;
+ if (Format = tfR3G3B2) then begin
+ Range := glBitmapColorRec($7, $7, $3, $0);
+ Shift := glBitmapShiftRec(0, 3, 6, 0);
+ end else
+ Range := glBitmapColorRec($FF, $FF, $FF, $0);
+ CreateColorTable;
+ end;
+ end;
+
+ tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
+ tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4: begin
+ Info.biBitCount := 16;
+ Info.biCompression := BMP_COMP_BITFIELDS;
+ end;
+
+ tfBGR8, tfRGB8: begin
+ Info.biBitCount := 24;
+ if (Format = tfRGB8) then
+ Converter := TfdBGR8.Create; //use BGR8 Format Descriptor to Swap RGB Values
+ end;
+
+ tfRGB10, tfRGB10A2, tfRGBA8,
+ tfBGR10, tfBGR10A2, tfBGRA8: begin
+ Info.biBitCount := 32;
+ Info.biCompression := BMP_COMP_BITFIELDS;
+ end;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
+ Info.biXPelsPerMeter := 2835;
+ Info.biYPelsPerMeter := 2835;
+
+ // prepare bitmasks
+ if Info.biCompression = BMP_COMP_BITFIELDS then begin
+ Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
+ Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
+
+ RedMask := FormatDesc.RedMask;
+ GreenMask := FormatDesc.GreenMask;
+ BlueMask := FormatDesc.BlueMask;
+ AlphaMask := FormatDesc.AlphaMask;
+ end;
+
+ // headers
+ aStream.Write(Header, SizeOf(Header));
+ aStream.Write(Info, SizeOf(Info));
+
+ // colortable
+ if Assigned(Converter) and (Converter is TbmpColorTableFormat) then
+ with (Converter as TbmpColorTableFormat) do
+ aStream.Write(ColorTable[0].b,
+ SizeOf(TbmpColorTableEnty) * Length(ColorTable));
+
+ // bitmasks
+ if Info.biCompression = BMP_COMP_BITFIELDS then begin
+ aStream.Write(RedMask, SizeOf(Cardinal));
+ aStream.Write(GreenMask, SizeOf(Cardinal));
+ aStream.Write(BlueMask, SizeOf(Cardinal));
+ aStream.Write(AlphaMask, SizeOf(Cardinal));
+ end;
+
+ // image data
+ rbLineSize := Round(Info.biWidth * FormatDesc.PixelSize);
+ wbLineSize := Round(Info.biWidth * Info.biBitCount / 8);
+ Padding := GetLineWidth - wbLineSize;
+ PaddingBuff := 0;
+
+ pData := Data;
+ inc(pData, (Height-1) * rbLineSize);
+
+ // prepare row buffer. But only for RGB because RGBA supports color masks
+ // so it's possible to change color within the image.
+ if Assigned(Converter) then begin
+ FormatDesc.PreparePixel(Pixel);
+ GetMem(ConvertBuffer, wbLineSize);
+ SourceFD := FormatDesc.CreateMappingData;
+ DestFD := Converter.CreateMappingData;
+ end else
+ ConvertBuffer := nil;
+
+ try
+ for LineIdx := 0 to Height - 1 do begin
+ // preparing row
+ if Assigned(Converter) then begin
+ srcData := pData;
+ dstData := ConvertBuffer;
+ for PixelIdx := 0 to Info.biWidth-1 do begin
+ FormatDesc.Unmap(srcData, Pixel, SourceFD);
+ glBitmapConvertPixel(Pixel, FormatDesc, Converter);
+ Converter.Map(Pixel, dstData, DestFD);
+ end;
+ aStream.Write(ConvertBuffer^, wbLineSize);
+ end else begin
+ aStream.Write(pData^, rbLineSize);
+ end;
+ dec(pData, rbLineSize);
+ if (Padding > 0) then
+ aStream.Write(PaddingBuff, Padding);
+ end;
+ finally
+ // destroy row buffer
+ if Assigned(ConvertBuffer) then begin
+ FormatDesc.FreeMappingData(SourceFD);
+ Converter.FreeMappingData(DestFD);
+ FreeMem(ConvertBuffer);
+ end;
+ end;
+ finally
+ if Assigned(Converter) then
+ Converter.Free;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TGA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+type
+ TTGAHeader = packed record
+ ImageID: Byte;
+ ColorMapType: Byte;
+ ImageType: Byte;
+ //ColorMapSpec: Array[0..4] of Byte;
+ ColorMapStart: Word;
+ ColorMapLength: Word;
+ ColorMapEntrySize: Byte;
+ OrigX: Word;
+ OrigY: Word;
+ Width: Word;
+ Height: Word;
+ Bpp: Byte;
+ ImageDesc: Byte;
+ end;
+
+const
+ TGA_UNCOMPRESSED_RGB = 2;
+ TGA_UNCOMPRESSED_GRAY = 3;
+ TGA_COMPRESSED_RGB = 10;
+ TGA_COMPRESSED_GRAY = 11;
+
+ TGA_NONE_COLOR_TABLE = 0;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadTGA(const aStream: TStream): Boolean;
+var
+ Header: TTGAHeader;
+ ImageData: System.PByte;
+ StartPosition: Int64;
+ PixelSize, LineSize: Integer;
+ tgaFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+ Counter: packed record
+ X, Y: packed record
+ low, high, dir: Integer;
+ end;
+ end;
+
+const
+ CACHE_SIZE = $4000;
+
+ ////////////////////////////////////////////////////////////////////////////////////////
+ procedure ReadUncompressed;
+ var
+ i, j: Integer;
+ buf, tmp1, tmp2: System.PByte;
+ begin
+ buf := nil;
+ if (Counter.X.dir < 0) then
+ GetMem(buf, LineSize);
+ try
+ while (Counter.Y.low <> Counter.Y.high + counter.Y.dir) do begin
+ tmp1 := ImageData;
+ inc(tmp1, (Counter.Y.low * LineSize)); //pointer to LineStart
+ if (Counter.X.dir < 0) then begin //flip X
+ aStream.Read(buf^, LineSize);
+ tmp2 := buf;
+ inc(tmp2, LineSize - PixelSize); //pointer to last pixel in line
+ for i := 0 to Header.Width-1 do begin //for all pixels in line
+ for j := 0 to PixelSize-1 do begin //for all bytes in pixel
+ tmp1^ := tmp2^;
+ inc(tmp1);
+ inc(tmp2);
+ end;
+ dec(tmp2, 2*PixelSize); //move 2 backwards, because j-loop moved 1 forward
+ end;
+ end else
+ aStream.Read(tmp1^, LineSize);
+ inc(Counter.Y.low, Counter.Y.dir); //move to next line index
+ end;
+ finally
+ if Assigned(buf) then
+ FreeMem(buf);
+ end;
+ end;
+
+ ////////////////////////////////////////////////////////////////////////////////////////
+ procedure ReadCompressed;
+
+ /////////////////////////////////////////////////////////////////
+ var
+ TmpData: System.PByte;
+ LinePixelsRead: Integer;
+ procedure CheckLine;
+ begin
+ if (LinePixelsRead >= Header.Width) then begin
+ LinePixelsRead := 0;
+ inc(Counter.Y.low, Counter.Y.dir); //next line index
+ TmpData := ImageData;
+ inc(TmpData, Counter.Y.low * LineSize); //set line
+ if (Counter.X.dir < 0) then //if x flipped then
+ inc(TmpData, LineSize - PixelSize); //set last pixel
+ end;
+ end;
+
+ /////////////////////////////////////////////////////////////////
+ var
+ Cache: PByte;
+ CacheSize, CachePos: Integer;
+ procedure CachedRead(out Buffer; Count: Integer);
+ var
+ BytesRead: Integer;
+ begin
+ if (CachePos + Count > CacheSize) then begin
+ //if buffer overflow save non read bytes
+ BytesRead := 0;
+ if (CacheSize - CachePos > 0) then begin
+ BytesRead := CacheSize - CachePos;
+ Move(PByteArray(Cache)^[CachePos], Buffer{%H-}, BytesRead);
+ inc(CachePos, BytesRead);
+ end;
+
+ //load cache from file
+ CacheSize := Min(CACHE_SIZE, aStream.Size - aStream.Position);
+ aStream.Read(Cache^, CacheSize);
+ CachePos := 0;
+
+ //read rest of requested bytes
+ if (Count - BytesRead > 0) then begin
+ Move(PByteArray(Cache)^[CachePos], TByteArray(Buffer)[BytesRead], Count - BytesRead);
+ inc(CachePos, Count - BytesRead);
+ end;
+ end else begin
+ //if no buffer overflow just read the data
+ Move(PByteArray(Cache)^[CachePos], Buffer, Count);
+ inc(CachePos, Count);
+ end;
+ end;
+
+ procedure PixelToBuffer(const aData: PByte; var aBuffer: PByte);
+ begin
+ case PixelSize of
+ 1: begin
+ aBuffer^ := aData^;
+ inc(aBuffer, Counter.X.dir);
+ end;
+ 2: begin
+ PWord(aBuffer)^ := PWord(aData)^;
+ inc(aBuffer, 2 * Counter.X.dir);
+ end;
+ 3: begin
+ PByteArray(aBuffer)^[0] := PByteArray(aData)^[0];
+ PByteArray(aBuffer)^[1] := PByteArray(aData)^[1];
+ PByteArray(aBuffer)^[2] := PByteArray(aData)^[2];
+ inc(aBuffer, 3 * Counter.X.dir);
+ end;
+ 4: begin
+ PCardinal(aBuffer)^ := PCardinal(aData)^;
+ inc(aBuffer, 4 * Counter.X.dir);
+ end;
+ end;
+ end;
+
+ var
+ TotalPixelsToRead, TotalPixelsRead: Integer;
+ Temp: Byte;
+ buf: array [0..3] of Byte; //1 pixel is max 32bit long
+ PixelRepeat: Boolean;
+ PixelsToRead, PixelCount: Integer;
+ begin
+ CacheSize := 0;
+ CachePos := 0;
+
+ TotalPixelsToRead := Header.Width * Header.Height;
+ TotalPixelsRead := 0;
+ LinePixelsRead := 0;
+
+ GetMem(Cache, CACHE_SIZE);
+ try
+ TmpData := ImageData;
+ inc(TmpData, Counter.Y.low * LineSize); //set line
+ if (Counter.X.dir < 0) then //if x flipped then
+ inc(TmpData, LineSize - PixelSize); //set last pixel
+
+ repeat
+ //read CommandByte
+ CachedRead(Temp, 1);
+ PixelRepeat := (Temp and $80) > 0;
+ PixelsToRead := (Temp and $7F) + 1;
+ inc(TotalPixelsRead, PixelsToRead);
+
+ if PixelRepeat then
+ CachedRead(buf[0], PixelSize);
+ while (PixelsToRead > 0) do begin
+ CheckLine;
+ PixelCount := Min(Header.Width - LinePixelsRead, PixelsToRead); //max read to EOL or EOF
+ while (PixelCount > 0) do begin
+ if not PixelRepeat then
+ CachedRead(buf[0], PixelSize);
+ PixelToBuffer(@buf[0], TmpData);
+ inc(LinePixelsRead);
+ dec(PixelsToRead);
+ dec(PixelCount);
+ end;
+ end;
+ until (TotalPixelsRead >= TotalPixelsToRead);
+ finally
+ FreeMem(Cache);
+ end;
+ end;
+
+ function IsGrayFormat: Boolean;
+ begin
+ result := Header.ImageType in [TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_GRAY];
+ end;
+
+begin
+ result := false;
+
+ // reading header to test file and set cursor back to begin
+ StartPosition := aStream.Position;
+ aStream.Read(Header{%H-}, SizeOf(Header));
+
+ // no colormapped files
+ if (Header.ColorMapType = TGA_NONE_COLOR_TABLE) and (Header.ImageType in [
+ TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY]) then
+ begin
+ try
+ if Header.ImageID <> 0 then // skip image ID
+ aStream.Position := aStream.Position + Header.ImageID;
+
+ tgaFormat := tfEmpty;
+ case Header.Bpp of
+ 8: if IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfLuminance8;
+ 8: tgaFormat := tfAlpha8;
+ end;
+
+ 16: if IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfLuminance16;
+ 8: tgaFormat := tfLuminance8Alpha8;
+ end else case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfBGR5;
+ 1: tgaFormat := tfBGR5A1;
+ 4: tgaFormat := tfBGRA4;
+ end;
+
+ 24: if not IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfBGR8;
+ end;
+
+ 32: if not IsGrayFormat then case (Header.ImageDesc and $F) of
+ 2: tgaFormat := tfBGR10A2;
+ 8: tgaFormat := tfBGRA8;
+ end;
+ end;
+
+ if (tgaFormat = tfEmpty) then
+ raise EglBitmap.Create('LoadTga - unsupported format');
+
+ FormatDesc := TFormatDescriptor.Get(tgaFormat);
+ PixelSize := FormatDesc.GetSize(1, 1);
+ LineSize := FormatDesc.GetSize(Header.Width, 1);
+
+ GetMem(ImageData, LineSize * Header.Height);
+ try
+ //column direction
+ if ((Header.ImageDesc and (1 shl 4)) > 0) then begin
+ Counter.X.low := Header.Height-1;;
+ Counter.X.high := 0;
+ Counter.X.dir := -1;
+ end else begin
+ Counter.X.low := 0;
+ Counter.X.high := Header.Height-1;
+ Counter.X.dir := 1;
+ end;
+
+ // Row direction
+ if ((Header.ImageDesc and (1 shl 5)) > 0) then begin
+ Counter.Y.low := 0;
+ Counter.Y.high := Header.Height-1;
+ Counter.Y.dir := 1;
+ end else begin
+ Counter.Y.low := Header.Height-1;;
+ Counter.Y.high := 0;
+ Counter.Y.dir := -1;
+ end;
+
+ // Read Image
+ case Header.ImageType of
+ TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
+ ReadUncompressed;
+ TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
+ ReadCompressed;
+ end;
+
+ SetDataPointer(ImageData, tgaFormat, Header.Width, Header.Height); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(ImageData) then
+ FreeMem(ImageData);
+ raise;
+ end;
+ finally
+ aStream.Position := StartPosition;
+ end;
+ end
+ else aStream.Position := StartPosition;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveTGA(const aStream: TStream);
+var
+ Header: TTGAHeader;
+ LineSize, Size, x, y: Integer;
+ Pixel: TglBitmapPixelData;
+ LineBuf, SourceData, DestData: PByte;
+ SourceMD, DestMD: Pointer;
+ FormatDesc: TFormatDescriptor;
+ Converter: TFormatDescriptor;
+begin
+ if not (ftTGA in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ //prepare header
+ FillChar(Header{%H-}, SizeOf(Header), 0);
+
+ //set ImageType
+ if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8,
+ tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8]) then
+ Header.ImageType := TGA_UNCOMPRESSED_GRAY
+ else
+ Header.ImageType := TGA_UNCOMPRESSED_RGB;
+
+ //set BitsPerPixel
+ if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8]) then
+ Header.Bpp := 8
+ else if (Format in [tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8,
+ tfRGB5, tfBGR5, tfRGB5A1, tfBGR5A1, tfRGBA4, tfBGRA4]) then
+ Header.Bpp := 16
+ else if (Format in [tfBGR8, tfRGB8]) then
+ Header.Bpp := 24
+ else
+ Header.Bpp := 32;
+
+ //set AlphaBitCount
+ case Format of
+ tfRGB5A1, tfBGR5A1:
+ Header.ImageDesc := 1 and $F;
+ tfRGB10A2, tfBGR10A2:
+ Header.ImageDesc := 2 and $F;
+ tfRGBA4, tfBGRA4:
+ Header.ImageDesc := 4 and $F;
+ tfAlpha8, tfLuminance8Alpha8, tfRGBA8, tfBGRA8:
+ Header.ImageDesc := 8 and $F;
+ end;
+
+ Header.Width := Width;
+ Header.Height := Height;
+ Header.ImageDesc := Header.ImageDesc or $20; //flip y
+ aStream.Write(Header, SizeOf(Header));
+
+ // convert RGB(A) to BGR(A)
+ Converter := nil;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ Size := FormatDesc.GetSize(Dimension);
+ if Format in [tfRGB5, tfRGB5A1, tfRGBA4, tfRGB8, tfRGB10A2, tfRGBA8] then begin
+ if (FormatDesc.RGBInverted = tfEmpty) then
+ raise EglBitmap.Create('inverted RGB format is empty');
+ Converter := TFormatDescriptor.Get(FormatDesc.RGBInverted);
+ if not glBitmapColorRecCmp(Converter.Range, FormatDesc.Range) or
+ (Converter.PixelSize <> FormatDesc.PixelSize) then
+ raise EglBitmap.Create('invalid inverted RGB format');
+ end;
+
+ if Assigned(Converter) then begin
+ LineSize := FormatDesc.GetSize(Width, 1);
+ GetMem(LineBuf, LineSize);
+ SourceMD := FormatDesc.CreateMappingData;
+ DestMD := Converter.CreateMappingData;
+ try
+ SourceData := Data;
+ for y := 0 to Height-1 do begin
+ DestData := LineBuf;
+ for x := 0 to Width-1 do begin
+ FormatDesc.Unmap(SourceData, Pixel, SourceMD);
+ Converter.Map(Pixel, DestData, DestMD);
+ end;
+ aStream.Write(LineBuf^, LineSize);
+ end;
+ finally
+ FreeMem(LineBuf);
+ FormatDesc.FreeMappingData(SourceMD);
+ FormatDesc.FreeMappingData(DestMD);
+ end;
+ end else
+ aStream.Write(Data^, Size);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//DDS/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+const
+ DDS_MAGIC: Cardinal = $20534444;
+
+ // DDS_header.dwFlags
+ DDSD_CAPS = $00000001;
+ DDSD_HEIGHT = $00000002;
+ DDSD_WIDTH = $00000004;
+ DDSD_PIXELFORMAT = $00001000;
+
+ // DDS_header.sPixelFormat.dwFlags
+ DDPF_ALPHAPIXELS = $00000001;
+ DDPF_ALPHA = $00000002;
+ DDPF_FOURCC = $00000004;
+ DDPF_RGB = $00000040;
+ DDPF_LUMINANCE = $00020000;
+
+ // DDS_header.sCaps.dwCaps1
+ DDSCAPS_TEXTURE = $00001000;
+
+ // DDS_header.sCaps.dwCaps2
+ DDSCAPS2_CUBEMAP = $00000200;
+
+ D3DFMT_DXT1 = $31545844;
+ D3DFMT_DXT3 = $33545844;
+ D3DFMT_DXT5 = $35545844;
+
+type
+ TDDSPixelFormat = packed record
+ dwSize: Cardinal;
+ dwFlags: Cardinal;
+ dwFourCC: Cardinal;
+ dwRGBBitCount: Cardinal;
+ dwRBitMask: Cardinal;
+ dwGBitMask: Cardinal;
+ dwBBitMask: Cardinal;
+ dwABitMask: Cardinal;
+ end;
+
+ TDDSCaps = packed record
+ dwCaps1: Cardinal;
+ dwCaps2: Cardinal;
+ dwDDSX: Cardinal;
+ dwReserved: Cardinal;
+ end;
+
+ TDDSHeader = packed record
+ dwSize: Cardinal;
+ dwFlags: Cardinal;
+ dwHeight: Cardinal;
+ dwWidth: Cardinal;
+ dwPitchOrLinearSize: Cardinal;
+ dwDepth: Cardinal;
+ dwMipMapCount: Cardinal;
+ dwReserved: array[0..10] of Cardinal;
+ PixelFormat: TDDSPixelFormat;
+ Caps: TDDSCaps;
+ dwReserved2: Cardinal;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.LoadDDS(const aStream: TStream): Boolean;
+var
+ Header: TDDSHeader;
+ Converter: TbmpBitfieldFormat;
+
+ function GetDDSFormat: TglBitmapFormat;
+ var
+ fd: TFormatDescriptor;
+ i: Integer;
+ Range: TglBitmapColorRec;
+ match: Boolean;
+ begin
+ result := tfEmpty;
+ with Header.PixelFormat do begin
+ // Compresses
+ if ((dwFlags and DDPF_FOURCC) > 0) then begin
+ case Header.PixelFormat.dwFourCC of
+ D3DFMT_DXT1: result := tfS3tcDtx1RGBA;
+ D3DFMT_DXT3: result := tfS3tcDtx3RGBA;
+ D3DFMT_DXT5: result := tfS3tcDtx5RGBA;
+ end;
+ end else if ((Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0) then begin
+
+ //find matching format
+ for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
+ fd := TFormatDescriptor.Get(result);
+ if fd.MaskMatch(dwRBitMask, dwGBitMask, dwBBitMask, dwABitMask) and
+ (8 * fd.PixelSize = dwRGBBitCount) then
+ exit;
+ end;
+
+ //find format with same Range
+ Range.r := dwRBitMask;
+ Range.g := dwGBitMask;
+ Range.b := dwBBitMask;
+ Range.a := dwABitMask;
+ for i := 0 to 3 do begin
+ while ((Range.arr[i] and 1) = 0) and (Range.arr[i] > 0) do
+ Range.arr[i] := Range.arr[i] shr 1;
+ end;
+ for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
+ fd := TFormatDescriptor.Get(result);
+ match := true;
+ for i := 0 to 3 do
+ if (fd.Range.arr[i] <> Range.arr[i]) then begin
+ match := false;
+ break;
+ end;
+ if match then
+ break;
+ end;
+
+ //no format with same range found -> use default
+ if (result = tfEmpty) then begin
+ if (dwABitMask > 0) then
+ result := tfBGRA8
+ else
+ result := tfBGR8;
+ end;
+
+ Converter := TbmpBitfieldFormat.Create;
+ Converter.RedMask := dwRBitMask;
+ Converter.GreenMask := dwGBitMask;
+ Converter.BlueMask := dwBBitMask;
+ Converter.AlphaMask := dwABitMask;
+ Converter.PixelSize := dwRGBBitCount / 8;
+ end;
+ end;
+ end;
+
+var
+ StreamPos: Int64;
+ x, y, LineSize, RowSize, Magic: Cardinal;
+ NewImage, TmpData, RowData, SrcData: System.PByte;
+ SourceMD, DestMD: Pointer;
+ Pixel: TglBitmapPixelData;
+ ddsFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+
+begin
+ result := false;
+ Converter := nil;
+ StreamPos := aStream.Position;
+
+ // Magic
+ aStream.Read(Magic{%H-}, sizeof(Magic));
+ if (Magic <> DDS_MAGIC) then begin
+ aStream.Position := StreamPos;
+ exit;
+ end;
+
+ //Header
+ aStream.Read(Header{%H-}, sizeof(Header));
+ if (Header.dwSize <> SizeOf(Header)) or
+ ((Header.dwFlags and (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) <>
+ (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) then
+ begin
+ aStream.Position := StreamPos;
+ exit;
+ end;
+
+ if ((Header.Caps.dwCaps1 and DDSCAPS2_CUBEMAP) > 0) then
+ raise EglBitmap.Create('LoadDDS - CubeMaps are not supported');
+
+ ddsFormat := GetDDSFormat;
+ try
+ if (ddsFormat = tfEmpty) then
+ raise EglBitmap.Create('LoadDDS - unsupported Pixelformat found.');
+
+ FormatDesc := TFormatDescriptor.Get(ddsFormat);
+ LineSize := Trunc(Header.dwWidth * FormatDesc.PixelSize);
+ GetMem(NewImage, Header.dwHeight * LineSize);
+ try
+ TmpData := NewImage;
+
+ //Converter needed
+ if Assigned(Converter) then begin
+ RowSize := Round(Header.dwWidth * Header.PixelFormat.dwRGBBitCount / 8);
+ GetMem(RowData, RowSize);
+ SourceMD := Converter.CreateMappingData;
+ DestMD := FormatDesc.CreateMappingData;
+ try
+ for y := 0 to Header.dwHeight-1 do begin
+ TmpData := NewImage;
+ inc(TmpData, y * LineSize);
+ SrcData := RowData;
+ aStream.Read(SrcData^, RowSize);
+ for x := 0 to Header.dwWidth-1 do begin
+ Converter.Unmap(SrcData, Pixel, SourceMD);
+ glBitmapConvertPixel(Pixel, Converter, FormatDesc);
+ FormatDesc.Map(Pixel, TmpData, DestMD);
+ end;
+ end;
+ finally
+ Converter.FreeMappingData(SourceMD);
+ FormatDesc.FreeMappingData(DestMD);
+ FreeMem(RowData);
+ end;
+ end else
+
+ // Compressed
+ if ((Header.PixelFormat.dwFlags and DDPF_FOURCC) > 0) then begin
+ RowSize := Header.dwPitchOrLinearSize div Header.dwWidth;
+ for Y := 0 to Header.dwHeight-1 do begin
+ aStream.Read(TmpData^, RowSize);
+ Inc(TmpData, LineSize);
+ end;
+ end else
+
+ // Uncompressed
+ if (Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0 then begin
+ RowSize := (Header.PixelFormat.dwRGBBitCount * Header.dwWidth) shr 3;
+ for Y := 0 to Header.dwHeight-1 do begin
+ aStream.Read(TmpData^, RowSize);
+ Inc(TmpData, LineSize);
+ end;
+ end else
+ raise EglBitmap.Create('LoadDDS - unsupported Pixelformat found.');
+
+ SetDataPointer(NewImage, ddsFormat, Header.dwWidth, Header.dwHeight); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(NewImage) then
+ FreeMem(NewImage);
+ raise;
+ end;
+ finally
+ FreeAndNil(Converter);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SaveDDS(const aStream: TStream);
+var
+ Header: TDDSHeader;
+ FormatDesc: TFormatDescriptor;
+begin
+ if not (ftDDS in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ FormatDesc := TFormatDescriptor.Get(Format);
+
+ // Generell
+ FillChar(Header{%H-}, SizeOf(Header), 0);
+ Header.dwSize := SizeOf(Header);
+ Header.dwFlags := DDSD_WIDTH or DDSD_HEIGHT or DDSD_CAPS or DDSD_PIXELFORMAT;
+
+ Header.dwWidth := Max(1, Width);
+ Header.dwHeight := Max(1, Height);
+
+ // Caps
+ Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
+
+ // Pixelformat
+ Header.PixelFormat.dwSize := sizeof(Header);
+ if (FormatDesc.IsCompressed) then begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_FOURCC;
+ case Format of
+ tfS3tcDtx1RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT1;
+ tfS3tcDtx3RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT3;
+ tfS3tcDtx5RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT5;
+ end;
+ end else if (Format in [tfAlpha8, tfAlpha16]) then begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHA;
+ Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
+ Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
+ end else if (FormatDesc.RedMask = FormatDesc.GreenMask) and (FormatDesc.GreenMask = FormatDesc.BlueMask) then begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_LUMINANCE;
+ Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
+ Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
+ Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
+ end else begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_RGB;
+ Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
+ Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
+ Header.PixelFormat.dwGBitMask := FormatDesc.GreenMask;
+ Header.PixelFormat.dwBBitMask := FormatDesc.BlueMask;
+ Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
+ end;
+
+ if (FormatDesc.HasAlpha) then
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
+
+ aStream.Write(DDS_MAGIC, sizeof(DDS_MAGIC));
+ aStream.Write(Header, SizeOf(Header));
+ aStream.Write(Data^, FormatDesc.GetSize(Dimension));
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap1D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer; const aHeight: Integer);
+var
+ pTemp: pByte;
+ Size: Integer;
+begin
+ if (aHeight > 1) then begin
+ Size := TFormatDescriptor.Get(aFormat).GetSize(aWidth, 1);
+ GetMem(pTemp, Size);
+ try
+ Move(aData^, pTemp^, Size);
+ FreeMem(aData);
+ aData := nil;
+ except
+ FreeMem(pTemp);
+ raise;
+ end;
+ end else
+ pTemp := aData;
+ inherited SetDataPointer(pTemp, aFormat, aWidth);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap1D.FlipHorz: Boolean;
+var
+ Col: Integer;
+ pTempDest, pDest, pSource: PByte;
+begin
+ result := inherited FlipHorz;
+ if Assigned(Data) and not TFormatDescriptor.Get(Format).IsCompressed then begin
+ pSource := Data;
+ GetMem(pDest, fRowSize);
+ try
+ pTempDest := pDest;
+ Inc(pTempDest, fRowSize);
+ for Col := 0 to Width-1 do begin
+ dec(pTempDest, fPixelSize); //dec before, because ptr is behind last byte of data
+ Move(pSource^, pTempDest^, fPixelSize);
+ Inc(pSource, fPixelSize);
+ end;
+ SetDataPointer(pDest, Format, Width); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(pDest) then
+ FreeMem(pDest);
+ raise;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.UploadData(const aBuildWithGlu: Boolean);
+var
+ FormatDesc: TFormatDescriptor;
+begin
+ // Upload data
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then begin
+ if not Assigned(glCompressedTexImage1D) then
+ raise EglBitmap.Create('compressed formats not supported by video adapter');
+ glCompressedTexImage1D(Target, 0, FormatDesc.glInternalFormat, Width, 0, FormatDesc.GetSize(Width, 1), Data)
+ end else if aBuildWithGlu then
+ gluBuild1DMipmaps(Target, FormatDesc.glInternalFormat, Width, FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
+ else
+ glTexImage1D(Target, 0, FormatDesc.glInternalFormat, Width, 0, FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
+
+ // Free Data
+ if (FreeDataAfterGenTexture) then
+ FreeData;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.GenTexture(const aTestTextureSize: Boolean);
+var
+ BuildWithGlu, TexRec: Boolean;
+ TexSize: Integer;
+begin
+ if Assigned(Data) then begin
+ // Check Texture Size
+ if (aTestTextureSize) then begin
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
+
+ if (Width > TexSize) then
+ raise EglBitmapSizeToLarge.Create('TglBitmap1D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
+
+ TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and
+ (Target = GL_TEXTURE_RECTANGLE);
+ if not (IsPowerOfTwo(Width) or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmap1D.GenTexture - Rendercontex dosn''t support non power of two texture.');
+ end;
+
+ CreateId;
+ SetupParameters(BuildWithGlu);
+ UploadData(BuildWithGlu);
+ glAreTexturesResident(1, @fID, @fIsResident);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.AfterConstruction;
+begin
+ inherited;
+ Target := GL_TEXTURE_1D;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap2D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap2D.GetScanline(const aIndex: Integer): Pointer;
+begin
+ if (aIndex >= Low(fLines)) and (aIndex <= High(fLines)) then
+ result := fLines[aIndex]
+ else
+ result := nil;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer; const aHeight: Integer);
+var
+ Idx, LineWidth: Integer;
+begin
+ inherited SetDataPointer(aData, aFormat, aWidth, aHeight);
+
+ if not TFormatDescriptor.Get(aFormat).IsCompressed then begin
+ // Assigning Data
+ if Assigned(Data) then begin
+ SetLength(fLines, GetHeight);
+ LineWidth := Trunc(GetWidth * TFormatDescriptor.Get(Format).PixelSize);
+
+ for Idx := 0 to GetHeight-1 do begin
+ fLines[Idx] := Data;
+ Inc(fLines[Idx], Idx * LineWidth);
+ end;
+ end
+ else SetLength(fLines, 0);
+ end else begin
+ SetLength(fLines, 0);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.UploadData(const aTarget: GLenum; const aBuildWithGlu: Boolean);
+var
+ FormatDesc: TFormatDescriptor;
+begin
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then begin
+ if not Assigned(glCompressedTexImage2D) then
+ raise EglBitmap.Create('compressed formats not supported by video adapter');
+ glCompressedTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0, FormatDesc.GetSize(fDimension), Data)
+ end else if aBuildWithGlu then begin
+ gluBuild2DMipmaps(aTarget, FormatDesc.Components, Width, Height,
+ FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
+ end else begin
+ glTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0,
+ FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
+ end;
+
+ // Freigeben
+ if (FreeDataAfterGenTexture) then
+ FreeData;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.AfterConstruction;
+begin
+ inherited;
+ Target := GL_TEXTURE_2D;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
+var
+ Temp: pByte;
+ Size, w, h: Integer;
+ FormatDesc: TFormatDescriptor;
+begin
+ FormatDesc := TFormatDescriptor.Get(aFormat);
+ if FormatDesc.IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(aFormat);
+
+ w := aRight - aLeft;
+ h := aBottom - aTop;
+ Size := FormatDesc.GetSize(w, h);
+ GetMem(Temp, Size);
+ try
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glReadPixels(aLeft, aTop, w, h, FormatDesc.glFormat, FormatDesc.glDataFormat, Temp);
+ SetDataPointer(Temp, aFormat, w, h); //be careful, Data could be freed by this method
+ FlipVert;
+ except
+ if Assigned(Temp) then
+ FreeMem(Temp);
+ raise;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.GetDataFromTexture;
+var
+ Temp: PByte;
+ TempWidth, TempHeight: Integer;
+ TempIntFormat: GLint;
+ IntFormat: TglBitmapFormat;
+ FormatDesc: TFormatDescriptor;
+begin
+ Bind;
+
+ // Request Data
+ glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_WIDTH, @TempWidth);
+ glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_HEIGHT, @TempHeight);
+ glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_INTERNAL_FORMAT, @TempIntFormat);
+
+ IntFormat := tfEmpty;
+ FormatDesc := (TglBitmapFormatDescriptor.GetByFormat(TempIntFormat) as TFormatDescriptor);
+ IntFormat := FormatDesc.Format;
+
+ // Getting data from OpenGL
+ FormatDesc := TFormatDescriptor.Get(IntFormat);
+ GetMem(Temp, FormatDesc.GetSize(TempWidth, TempHeight));
+ try
+ if FormatDesc.IsCompressed then begin
+ if not Assigned(glGetCompressedTexImage) then
+ raise EglBitmap.Create('compressed formats not supported by video adapter');
+ glGetCompressedTexImage(Target, 0, Temp)
+ end else
+ glGetTexImage(Target, 0, FormatDesc.glFormat, FormatDesc.glDataFormat, Temp);
+ SetDataPointer(Temp, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
+ except
+ if Assigned(Temp) then
+ FreeMem(Temp);
+ raise;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.GenTexture(const aTestTextureSize: Boolean);
+var
+ BuildWithGlu, PotTex, TexRec: Boolean;
+ TexSize: Integer;
+begin
+ if Assigned(Data) then begin
+ // Check Texture Size
+ if (aTestTextureSize) then begin
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
+
+ if ((Height > TexSize) or (Width > TexSize)) then
+ raise EglBitmapSizeToLarge.Create('TglBitmap2D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
+
+ PotTex := IsPowerOfTwo(Height) and IsPowerOfTwo(Width);
+ TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and (Target = GL_TEXTURE_RECTANGLE);
+ if not (PotTex or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
+ end;
+
+ CreateId;
+ SetupParameters(BuildWithGlu);
+ UploadData(Target, BuildWithGlu);
+ glAreTexturesResident(1, @fID, @fIsResident);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap2D.FlipHorz: Boolean;
+var
+ Col, Row: Integer;
+ TempDestData, DestData, SourceData: PByte;
+ ImgSize: Integer;
+begin
+ result := inherited FlipHorz;
+ if Assigned(Data) then begin
+ SourceData := Data;
+ ImgSize := Height * fRowSize;
+ GetMem(DestData, ImgSize);
+ try
+ TempDestData := DestData;
+ Dec(TempDestData, fRowSize + fPixelSize);
+ for Row := 0 to Height -1 do begin
+ Inc(TempDestData, fRowSize * 2);
+ for Col := 0 to Width -1 do begin
+ Move(SourceData^, TempDestData^, fPixelSize);
+ Inc(SourceData, fPixelSize);
+ Dec(TempDestData, fPixelSize);
+ end;
+ end;
+ SetDataPointer(DestData, Format, Width, Height); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(DestData) then
+ FreeMem(DestData);
+ raise;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap2D.FlipVert: Boolean;
+var
+ Row: Integer;
+ TempDestData, DestData, SourceData: PByte;
+begin
+ result := inherited FlipVert;
+ if Assigned(Data) then begin
+ SourceData := Data;
+ GetMem(DestData, Height * fRowSize);
+ try
+ TempDestData := DestData;
+ Inc(TempDestData, Width * (Height -1) * fPixelSize);
+ for Row := 0 to Height -1 do begin
+ Move(SourceData^, TempDestData^, fRowSize);
+ Dec(TempDestData, fRowSize);
+ Inc(SourceData, fRowSize);
+ end;
+ SetDataPointer(DestData, Format, Width, Height); //be careful, Data could be freed by this method
+ result := true;
+ except
+ if Assigned(DestData) then
+ FreeMem(DestData);
+ raise;
+ end;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap2D - ToNormalMap///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+type
+ TMatrixItem = record
+ X, Y: Integer;
+ W: Single;
+ end;
+
+ PglBitmapToNormalMapRec = ^TglBitmapToNormalMapRec;
+ TglBitmapToNormalMapRec = Record
+ Scale: Single;
+ Heights: array of Single;
+ MatrixU : array of TMatrixItem;
+ MatrixV : array of TMatrixItem;
+ end;
+
+const
+ ONE_OVER_255 = 1 / 255;
+
+ //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapToNormalMapPrepareFunc(var FuncRec: TglBitmapFunctionRec);
+var
+ Val: Single;
+begin
+ with FuncRec do begin
+ Val :=
+ Source.Data.r * LUMINANCE_WEIGHT_R +
+ Source.Data.g * LUMINANCE_WEIGHT_G +
+ Source.Data.b * LUMINANCE_WEIGHT_B;
+ PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Val * ONE_OVER_255;
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapToNormalMapPrepareAlphaFunc(var FuncRec: TglBitmapFunctionRec);
+begin
+ with FuncRec do
+ PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Source.Data.a * ONE_OVER_255;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapToNormalMapFunc (var FuncRec: TglBitmapFunctionRec);
+type
+ TVec = Array[0..2] of Single;
+var
+ Idx: Integer;
+ du, dv: Double;
+ Len: Single;
+ Vec: TVec;
+
+ function GetHeight(X, Y: Integer): Single;
+ begin
+ with FuncRec do begin
+ X := Max(0, Min(Size.X -1, X));
+ Y := Max(0, Min(Size.Y -1, Y));
+ result := PglBitmapToNormalMapRec(Args)^.Heights[Y * Size.X + X];
+ end;
+ end;
+
+begin
+ with FuncRec do begin
+ with PglBitmapToNormalMapRec(Args)^ do begin
+ du := 0;
+ for Idx := Low(MatrixU) to High(MatrixU) do
+ du := du + GetHeight(Position.X + MatrixU[Idx].X, Position.Y + MatrixU[Idx].Y) * MatrixU[Idx].W;
+
+ dv := 0;
+ for Idx := Low(MatrixU) to High(MatrixU) do
+ dv := dv + GetHeight(Position.X + MatrixV[Idx].X, Position.Y + MatrixV[Idx].Y) * MatrixV[Idx].W;
+
+ Vec[0] := -du * Scale;
+ Vec[1] := -dv * Scale;
+ Vec[2] := 1;
+ end;
+
+ // Normalize
+ Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
+ if Len <> 0 then begin
+ Vec[0] := Vec[0] * Len;
+ Vec[1] := Vec[1] * Len;
+ Vec[2] := Vec[2] * Len;
+ end;
+
+ // Farbe zuweisem
+ Dest.Data.r := Trunc((Vec[0] + 1) * 127.5);
+ Dest.Data.g := Trunc((Vec[1] + 1) * 127.5);
+ Dest.Data.b := Trunc((Vec[2] + 1) * 127.5);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.ToNormalMap(const aFunc: TglBitmapNormalMapFunc; const aScale: Single; const aUseAlpha: Boolean);
+var
+ Rec: TglBitmapToNormalMapRec;
+
+ procedure SetEntry (var Matrix: array of TMatrixItem; Index, X, Y: Integer; W: Single);
+ begin
+ if (Index >= Low(Matrix)) and (Index <= High(Matrix)) then begin
+ Matrix[Index].X := X;
+ Matrix[Index].Y := Y;
+ Matrix[Index].W := W;
+ end;
+ end;
+
+begin
+ if TFormatDescriptor.Get(Format).IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+
+ if aScale > 100 then
+ Rec.Scale := 100
+ else if aScale < -100 then
+ Rec.Scale := -100
+ else
+ Rec.Scale := aScale;
+
+ SetLength(Rec.Heights, Width * Height);
+ try
+ case aFunc of
+ nm4Samples: begin
+ SetLength(Rec.MatrixU, 2);
+ SetEntry(Rec.MatrixU, 0, -1, 0, -0.5);
+ SetEntry(Rec.MatrixU, 1, 1, 0, 0.5);
+
+ SetLength(Rec.MatrixV, 2);
+ SetEntry(Rec.MatrixV, 0, 0, 1, 0.5);
+ SetEntry(Rec.MatrixV, 1, 0, -1, -0.5);
+ end;
+
+ nmSobel: begin
+ SetLength(Rec.MatrixU, 6);
+ SetEntry(Rec.MatrixU, 0, -1, 1, -1.0);
+ SetEntry(Rec.MatrixU, 1, -1, 0, -2.0);
+ SetEntry(Rec.MatrixU, 2, -1, -1, -1.0);
+ SetEntry(Rec.MatrixU, 3, 1, 1, 1.0);
+ SetEntry(Rec.MatrixU, 4, 1, 0, 2.0);
+ SetEntry(Rec.MatrixU, 5, 1, -1, 1.0);
+
+ SetLength(Rec.MatrixV, 6);
+ SetEntry(Rec.MatrixV, 0, -1, 1, 1.0);
+ SetEntry(Rec.MatrixV, 1, 0, 1, 2.0);
+ SetEntry(Rec.MatrixV, 2, 1, 1, 1.0);
+ SetEntry(Rec.MatrixV, 3, -1, -1, -1.0);
+ SetEntry(Rec.MatrixV, 4, 0, -1, -2.0);
+ SetEntry(Rec.MatrixV, 5, 1, -1, -1.0);
+ end;
+
+ nm3x3: begin
+ SetLength(Rec.MatrixU, 6);
+ SetEntry(Rec.MatrixU, 0, -1, 1, -1/6);
+ SetEntry(Rec.MatrixU, 1, -1, 0, -1/6);
+ SetEntry(Rec.MatrixU, 2, -1, -1, -1/6);
+ SetEntry(Rec.MatrixU, 3, 1, 1, 1/6);
+ SetEntry(Rec.MatrixU, 4, 1, 0, 1/6);
+ SetEntry(Rec.MatrixU, 5, 1, -1, 1/6);
+
+ SetLength(Rec.MatrixV, 6);
+ SetEntry(Rec.MatrixV, 0, -1, 1, 1/6);
+ SetEntry(Rec.MatrixV, 1, 0, 1, 1/6);
+ SetEntry(Rec.MatrixV, 2, 1, 1, 1/6);
+ SetEntry(Rec.MatrixV, 3, -1, -1, -1/6);
+ SetEntry(Rec.MatrixV, 4, 0, -1, -1/6);
+ SetEntry(Rec.MatrixV, 5, 1, -1, -1/6);
+ end;
+
+ nm5x5: begin
+ SetLength(Rec.MatrixU, 20);
+ SetEntry(Rec.MatrixU, 0, -2, 2, -1 / 16);
+ SetEntry(Rec.MatrixU, 1, -1, 2, -1 / 10);
+ SetEntry(Rec.MatrixU, 2, 1, 2, 1 / 10);
+ SetEntry(Rec.MatrixU, 3, 2, 2, 1 / 16);
+ SetEntry(Rec.MatrixU, 4, -2, 1, -1 / 10);
+ SetEntry(Rec.MatrixU, 5, -1, 1, -1 / 8);
+ SetEntry(Rec.MatrixU, 6, 1, 1, 1 / 8);
+ SetEntry(Rec.MatrixU, 7, 2, 1, 1 / 10);
+ SetEntry(Rec.MatrixU, 8, -2, 0, -1 / 2.8);
+ SetEntry(Rec.MatrixU, 9, -1, 0, -0.5);
+ SetEntry(Rec.MatrixU, 10, 1, 0, 0.5);
+ SetEntry(Rec.MatrixU, 11, 2, 0, 1 / 2.8);
+ SetEntry(Rec.MatrixU, 12, -2, -1, -1 / 10);
+ SetEntry(Rec.MatrixU, 13, -1, -1, -1 / 8);
+ SetEntry(Rec.MatrixU, 14, 1, -1, 1 / 8);
+ SetEntry(Rec.MatrixU, 15, 2, -1, 1 / 10);
+ SetEntry(Rec.MatrixU, 16, -2, -2, -1 / 16);
+ SetEntry(Rec.MatrixU, 17, -1, -2, -1 / 10);
+ SetEntry(Rec.MatrixU, 18, 1, -2, 1 / 10);
+ SetEntry(Rec.MatrixU, 19, 2, -2, 1 / 16);
+
+ SetLength(Rec.MatrixV, 20);
+ SetEntry(Rec.MatrixV, 0, -2, 2, 1 / 16);
+ SetEntry(Rec.MatrixV, 1, -1, 2, 1 / 10);
+ SetEntry(Rec.MatrixV, 2, 0, 2, 0.25);
+ SetEntry(Rec.MatrixV, 3, 1, 2, 1 / 10);
+ SetEntry(Rec.MatrixV, 4, 2, 2, 1 / 16);
+ SetEntry(Rec.MatrixV, 5, -2, 1, 1 / 10);
+ SetEntry(Rec.MatrixV, 6, -1, 1, 1 / 8);
+ SetEntry(Rec.MatrixV, 7, 0, 1, 0.5);
+ SetEntry(Rec.MatrixV, 8, 1, 1, 1 / 8);
+ SetEntry(Rec.MatrixV, 9, 2, 1, 1 / 16);
+ SetEntry(Rec.MatrixV, 10, -2, -1, -1 / 16);
+ SetEntry(Rec.MatrixV, 11, -1, -1, -1 / 8);
+ SetEntry(Rec.MatrixV, 12, 0, -1, -0.5);
+ SetEntry(Rec.MatrixV, 13, 1, -1, -1 / 8);
+ SetEntry(Rec.MatrixV, 14, 2, -1, -1 / 10);
+ SetEntry(Rec.MatrixV, 15, -2, -2, -1 / 16);
+ SetEntry(Rec.MatrixV, 16, -1, -2, -1 / 10);
+ SetEntry(Rec.MatrixV, 17, 0, -2, -0.25);
+ SetEntry(Rec.MatrixV, 18, 1, -2, -1 / 10);
+ SetEntry(Rec.MatrixV, 19, 2, -2, -1 / 16);
+ end;
+ end;
+
+ // Daten Sammeln
+ if aUseAlpha and TFormatDescriptor.Get(Format).HasAlpha then
+ AddFunc(glBitmapToNormalMapPrepareAlphaFunc, false, @Rec)
+ else
+ AddFunc(glBitmapToNormalMapPrepareFunc, false, @Rec);
+ AddFunc(glBitmapToNormalMapFunc, false, @Rec);
+ finally
+ SetLength(Rec.Heights, 0);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmapCubeMap////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.GenTexture(const aTestTextureSize: Boolean);
+begin
+ Assert(false, 'TglBitmapCubeMap.GenTexture - Don''t call GenTextures directly.');
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.AfterConstruction;
+begin
+ inherited;
+
+ if not (GL_VERSION_1_3 or GL_ARB_texture_cube_map or GL_EXT_texture_cube_map) then
+ raise EglBitmap.Create('TglBitmapCubeMap.AfterConstruction - CubeMaps are unsupported.');
+
+ SetWrap;
+ Target := GL_TEXTURE_CUBE_MAP;
+ fGenMode := GL_REFLECTION_MAP;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean);
+var
+ BuildWithGlu: Boolean;
+ TexSize: Integer;
+begin
+ if (aTestTextureSize) then begin
+ glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, @TexSize);
+
+ if (Height > TexSize) or (Width > TexSize) then
+ raise EglBitmapSizeToLarge.Create('TglBitmapCubeMap.GenTexture - The size for the Cubemap is to large. It''s may be not conform with the Hardware.');
+
+ if not ((IsPowerOfTwo(Height) and IsPowerOfTwo(Width)) or GL_VERSION_2_0 or GL_ARB_texture_non_power_of_two) then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmapCubeMap.GenTexture - Cubemaps dosn''t support non power of two texture.');
+ end;
+
+ if (ID = 0) then
+ CreateID;
+ SetupParameters(BuildWithGlu);
+ UploadData(aCubeTarget, BuildWithGlu);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.Bind(const aEnableTexCoordsGen: Boolean; const aEnableTextureUnit: Boolean);
+begin
+ inherited Bind (aEnableTextureUnit);
+ if aEnableTexCoordsGen then begin
+ glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, fGenMode);
+ glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, fGenMode);
+ glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, fGenMode);
+ glEnable(GL_TEXTURE_GEN_S);
+ glEnable(GL_TEXTURE_GEN_T);
+ glEnable(GL_TEXTURE_GEN_R);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.Unbind(const aDisableTexCoordsGen: Boolean; const aDisableTextureUnit: Boolean);
+begin
+ inherited Unbind(aDisableTextureUnit);
+ if aDisableTexCoordsGen then begin
+ glDisable(GL_TEXTURE_GEN_S);
+ glDisable(GL_TEXTURE_GEN_T);
+ glDisable(GL_TEXTURE_GEN_R);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmapNormalMap//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+type
+ TVec = Array[0..2] of Single;
+ TglBitmapNormalMapGetVectorFunc = procedure (out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+
+ PglBitmapNormalMapRec = ^TglBitmapNormalMapRec;
+ TglBitmapNormalMapRec = record
+ HalfSize : Integer;
+ Func: TglBitmapNormalMapGetVectorFunc;
+ end;
+
+ //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapPosX(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := aHalfSize;
+ aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
+ aVec[2] := - (aPosition.X + 0.5 - aHalfSize);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapNegX(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := - aHalfSize;
+ aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
+ aVec[2] := aPosition.X + 0.5 - aHalfSize;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapPosY(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := aPosition.X + 0.5 - aHalfSize;
+ aVec[1] := aHalfSize;
+ aVec[2] := aPosition.Y + 0.5 - aHalfSize;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapNegY(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := aPosition.X + 0.5 - aHalfSize;
+ aVec[1] := - aHalfSize;
+ aVec[2] := - (aPosition.Y + 0.5 - aHalfSize);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapPosZ(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := aPosition.X + 0.5 - aHalfSize;
+ aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
+ aVec[2] := aHalfSize;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapNegZ(out aVec: TVec; const aPosition: TglBitmapPixelPosition; const aHalfSize: Integer);
+begin
+ aVec[0] := - (aPosition.X + 0.5 - aHalfSize);
+ aVec[1] := - (aPosition.Y + 0.5 - aHalfSize);
+ aVec[2] := - aHalfSize;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapNormalMapFunc(var FuncRec: TglBitmapFunctionRec);
+var
+ i: Integer;
+ Vec: TVec;
+ Len: Single;
+begin
+ with FuncRec do begin
+ with PglBitmapNormalMapRec(Args)^ do begin
+ Func(Vec, Position, HalfSize);
+
+ // Normalize
+ Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
+ if Len <> 0 then begin
+ Vec[0] := Vec[0] * Len;
+ Vec[1] := Vec[1] * Len;
+ Vec[2] := Vec[2] * Len;
+ end;
+
+ // Scale Vector and AddVectro
+ Vec[0] := Vec[0] * 0.5 + 0.5;
+ Vec[1] := Vec[1] * 0.5 + 0.5;
+ Vec[2] := Vec[2] * 0.5 + 0.5;
+ end;
+
+ // Set Color
+ for i := 0 to 2 do
+ Dest.Data.arr[i] := Round(Vec[i] * 255);
+ end;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapNormalMap.AfterConstruction;
+begin
+ inherited;
+ fGenMode := GL_NORMAL_MAP;
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapNormalMap.GenerateNormalMap(const aSize: Integer; const aTestTextureSize: Boolean);
+var
+ Rec: TglBitmapNormalMapRec;
+ SizeRec: TglBitmapPixelPosition;
+begin
+ Rec.HalfSize := aSize div 2;
+ FreeDataAfterGenTexture := false;
+
+ SizeRec.Fields := [ffX, ffY];
+ SizeRec.X := aSize;
+ SizeRec.Y := aSize;
+
+ // Positive X
+ Rec.Func := glBitmapNormalMapPosX;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_X, aTestTextureSize);
+
+ // Negative X
+ Rec.Func := glBitmapNormalMapNegX;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, aTestTextureSize);
+
+ // Positive Y
+ Rec.Func := glBitmapNormalMapPosY;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, aTestTextureSize);
+
+ // Negative Y
+ Rec.Func := glBitmapNormalMapNegY;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, aTestTextureSize);
+
+ // Positive Z
+ Rec.Func := glBitmapNormalMapPosZ;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, aTestTextureSize);
+
+ // Negative Z
+ Rec.Func := glBitmapNormalMapNegZ;
+ LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8, @Rec);
+ GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, aTestTextureSize);
+end;
+
+
+initialization
+ glBitmapSetDefaultFormat (tfEmpty);
+ glBitmapSetDefaultMipmap (mmMipmap);
+ glBitmapSetDefaultFilter (GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR);
+ glBitmapSetDefaultWrap (GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
+ glBitmapSetDefaultSwizzle(GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA);
+
+ glBitmapSetDefaultFreeDataAfterGenTexture(true);
+ glBitmapSetDefaultDeleteTextureOnFree (true);
+
+ TFormatDescriptor.Init;
+
+{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+ OpenGLInitialized := false;
+ InitOpenGLCS := TCriticalSection.Create;
+{$ENDIF}
+
+finalization
+ TFormatDescriptor.Finalize;
+
+{$IFDEF GLB_NATIVE_OGL}
+ if Assigned(GL_LibHandle) then
+ glbFreeLibrary(GL_LibHandle);
+
+{$IFDEF GLB_NATIVE_OGL_DYNAMIC}
+ if Assigned(GLU_LibHandle) then
+ glbFreeLibrary(GLU_LibHandle);
+ FreeAndNil(InitOpenGLCS);
+{$ENDIF}
+{$ENDIF}
+
+end.
projects / LazOpenGLCore.git / commitdiff