Units Class Hierarchy Classes, Interfaces, Objects and Records Types Variables Constants Functions and Procedures Identifiers |
Unit glBitmap
Description
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
The glBitmap is a Delphi/FPC unit that contains several wrapper classes to manage OpenGL texture objects. Below you can find a list of the main functionality of this classes: - load texture data from file (e.g. BMP, TGA, DDS, PNG, JPEG, ...) - load texture data from several other image objects (e.g. TBitmap, TLazIntfImage, SDL Surface) - save texture data to file (e.g. BMP, TGA, DDS, PNG, JPEG, ...) - save texture data to several other image objects (e.g. TBitmap, TLazIntfImage, SDL Surface) - support for many texture formats (e.g. RGB8, BGR8, RGBA8, BGRA8, ...) - manage texture properties (e.g. Filter, Clamp, Mipmap, ...) - upload texture data to video card - download texture data from video card - manipulate texture data (e.g. add alpha, remove alpha, convert to other format, switch RGB, ...)
Overview
Classes, Interfaces, Objects and Records
Functions and Procedures
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); |
procedure glBitmapSetDefaultSwizzle(const r: GLenum = GL_RED; g: GLenum = GL_GREEN; b: GLenum = GL_BLUE; a: GLenum = GL_ALPHA); |
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); |
procedure glBitmapGetDefaultSwizzle(var r, g, b, a: GLenum); |
function glBitmapSize(X: Integer = -1; Y: Integer = -1): TglBitmapSize; |
function glBitmapPosition(X: Integer = -1; Y: Integer = -1): TglBitmapPixelPosition; |
function glBitmapRec4ub(const r, g, b, a: Byte): TglBitmapRec4ub; |
function glBitmapRec4ui(const r, g, b, a: Cardinal): TglBitmapRec4ui; |
function glBitmapRec4ul(const r, g, b, a: QWord): TglBitmapRec4ul; |
function glBitmapRec4ubCompare(const r1, r2: TglBitmapRec4ub): Boolean; |
function glBitmapRec4uiCompare(const r1, r2: TglBitmapRec4ui): Boolean; |
function glBitmapCreateTestData(const aFormat: TglBitmapFormat): TglBitmapData; |
Types
Constants
Description
Functions and Procedures
procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean); |
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procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean); |
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procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer); |
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procedure glBitmapSetDefaultWrap( const S: Cardinal = GL_CLAMP_TO_EDGE; const T: Cardinal = GL_CLAMP_TO_EDGE; const R: Cardinal = GL_CLAMP_TO_EDGE); |
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procedure glBitmapSetDefaultSwizzle(const r: GLenum = GL_RED; g: GLenum = GL_GREEN; b: GLenum = GL_BLUE; a: GLenum = GL_ALPHA); |
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function glBitmapGetDefaultDeleteTextureOnFree: Boolean; |
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function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean; |
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procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal); |
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procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal); |
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procedure glBitmapGetDefaultSwizzle(var r, g, b, a: GLenum); |
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function glBitmapSize(X: Integer = -1; Y: Integer = -1): TglBitmapSize; |
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Types
TglBitmapFormat = (...); |
type that describes the format of the data stored in a texture. the name of formats is composed of the following constituents: - multiple channels: - channel (e.g. R, G, B, A or Alpha, Luminance or X (reserved)) - width of the chanel in bit (4, 8, 16, ...) - data type (e.g. ub, us, ui) - number of elements of data types
Values
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tfEmpty = 0:
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tfAlpha4ub1: 1 x unsigned byte
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tfAlpha8ub1: 1 x unsigned byte
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tfAlpha16us1: 1 x unsigned short
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tfLuminance4ub1: 1 x unsigned byte
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tfLuminance8ub1: 1 x unsigned byte
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tfLuminance16us1: 1 x unsigned short
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tfLuminance4Alpha4ub2: 1 x unsigned byte (lum), 1 x unsigned byte (alpha)
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tfLuminance6Alpha2ub2: 1 x unsigned byte (lum), 1 x unsigned byte (alpha)
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tfLuminance8Alpha8ub2: 1 x unsigned byte (lum), 1 x unsigned byte (alpha)
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tfLuminance12Alpha4us2: 1 x unsigned short (lum), 1 x unsigned short (alpha)
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tfLuminance16Alpha16us2: 1 x unsigned short (lum), 1 x unsigned short (alpha)
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tfR3G3B2ub1: 1 x unsigned byte (3bit red, 3bit green, 2bit blue)
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tfRGBX4us1: 1 x unsigned short (4bit red, 4bit green, 4bit blue, 4bit reserverd)
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tfXRGB4us1: 1 x unsigned short (4bit reserved, 4bit red, 4bit green, 4bit blue)
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tfR5G6B5us1: 1 x unsigned short (5bit red, 6bit green, 5bit blue)
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tfRGB5X1us1: 1 x unsigned short (5bit red, 5bit green, 5bit blue, 1bit reserved)
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tfX1RGB5us1: 1 x unsigned short (1bit reserved, 5bit red, 5bit green, 5bit blue)
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tfRGB8ub3: 1 x unsigned byte (red), 1 x unsigned byte (green), 1 x unsigned byte (blue)
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tfRGBX8ui1: 1 x unsigned int (8bit red, 8bit green, 8bit blue, 8bit reserved)
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tfXRGB8ui1: 1 x unsigned int (8bit reserved, 8bit red, 8bit green, 8bit blue)
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tfRGB10X2ui1: 1 x unsigned int (10bit red, 10bit green, 10bit blue, 2bit reserved)
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tfX2RGB10ui1: 1 x unsigned int (2bit reserved, 10bit red, 10bit green, 10bit blue)
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tfRGB16us3: 1 x unsigned short (red), 1 x unsigned short (green), 1 x unsigned short (blue)
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tfRGBA4us1: 1 x unsigned short (4bit red, 4bit green, 4bit blue, 4bit alpha)
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tfARGB4us1: 1 x unsigned short (4bit alpha, 4bit red, 4bit green, 4bit blue)
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tfRGB5A1us1: 1 x unsigned short (5bit red, 5bit green, 5bit blue, 1bit alpha)
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tfA1RGB5us1: 1 x unsigned short (1bit alpha, 5bit red, 5bit green, 5bit blue)
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tfRGBA8ui1: 1 x unsigned int (8bit red, 8bit green, 8bit blue, 8 bit alpha)
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tfARGB8ui1: 1 x unsigned int (8 bit alpha, 8bit red, 8bit green, 8bit blue)
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tfRGBA8ub4: 1 x unsigned byte (red), 1 x unsigned byte (green), 1 x unsigned byte (blue), 1 x unsigned byte (alpha)
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tfRGB10A2ui1: 1 x unsigned int (10bit red, 10bit green, 10bit blue, 2bit alpha)
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tfA2RGB10ui1: 1 x unsigned int (2bit alpha, 10bit red, 10bit green, 10bit blue)
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tfRGBA16us4: 1 x unsigned short (red), 1 x unsigned short (green), 1 x unsigned short (blue), 1 x unsigned short (alpha)
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tfBGRX4us1: 1 x unsigned short (4bit blue, 4bit green, 4bit red, 4bit reserved)
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tfXBGR4us1: 1 x unsigned short (4bit reserved, 4bit blue, 4bit green, 4bit red)
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tfB5G6R5us1: 1 x unsigned short (5bit blue, 6bit green, 5bit red)
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tfBGR5X1us1: 1 x unsigned short (5bit blue, 5bit green, 5bit red, 1bit reserved)
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tfX1BGR5us1: 1 x unsigned short (1bit reserved, 5bit blue, 5bit green, 5bit red)
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tfBGR8ub3: 1 x unsigned byte (blue), 1 x unsigned byte (green), 1 x unsigned byte (red)
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tfBGRX8ui1: 1 x unsigned int (8bit blue, 8bit green, 8bit red, 8bit reserved)
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tfXBGR8ui1: 1 x unsigned int (8bit reserved, 8bit blue, 8bit green, 8bit red)
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tfBGR10X2ui1: 1 x unsigned int (10bit blue, 10bit green, 10bit red, 2bit reserved)
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tfX2BGR10ui1: 1 x unsigned int (2bit reserved, 10bit blue, 10bit green, 10bit red)
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tfBGR16us3: 1 x unsigned short (blue), 1 x unsigned short (green), 1 x unsigned short (red)
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tfBGRA4us1: 1 x unsigned short (4bit blue, 4bit green, 4bit red, 4bit alpha)
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tfABGR4us1: 1 x unsigned short (4bit alpha, 4bit blue, 4bit green, 4bit red)
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tfBGR5A1us1: 1 x unsigned short (5bit blue, 5bit green, 5bit red, 1bit alpha)
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tfA1BGR5us1: 1 x unsigned short (1bit alpha, 5bit blue, 5bit green, 5bit red)
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tfBGRA8ui1: 1 x unsigned int (8bit blue, 8bit green, 8bit red, 8bit alpha)
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tfABGR8ui1: 1 x unsigned int (8bit alpha, 8bit blue, 8bit green, 8bit red)
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tfBGRA8ub4: 1 x unsigned byte (blue), 1 x unsigned byte (green), 1 x unsigned byte (red), 1 x unsigned byte (alpha)
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tfBGR10A2ui1: 1 x unsigned int (10bit blue, 10bit green, 10bit red, 2bit alpha)
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tfA2BGR10ui1: 1 x unsigned int (2bit alpha, 10bit blue, 10bit green, 10bit red)
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tfBGRA16us4: 1 x unsigned short (blue), 1 x unsigned short (green), 1 x unsigned short (red), 1 x unsigned short (alpha)
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tfDepth16us1: 1 x unsigned short (depth)
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tfDepth24ui1: 1 x unsigned int (depth)
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tfDepth32ui1: 1 x unsigned int (depth)
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tfS3tcDtx1RGBA:
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tfS3tcDtx3RGBA:
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tfS3tcDtx5RGBA:
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TglBitmapFileType = (...); |
type to define suitable file formats
Values
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ftPNG: Portable Network Graphic file (PNG)
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ftJPEG: JPEG file
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ftDDS: Direct Draw Surface file (DDS)
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ftTGA: Targa Image File (TGA)
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ftBMP: Windows Bitmap File (BMP)
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ftRAW: glBitmap RAW file format
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TglBitmapMipMap = (...); |
possible mipmap types
Values
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mmNone: no mipmaps
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mmMipmap: normal mipmaps
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mmMipmapGlu: mipmaps generated with glu functions
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TglBitmapNormalMapFunc = (...); |
possible normal map functions
Values
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nm4Samples:
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nmSobel:
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nm3x3:
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nm5x5:
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TglBitmapSizeFields = set of (ffX, ffY); |
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TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec); |
callback to use for converting texture data
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Constants
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