1: (arr: array[0..3] of QWord);
end;
+ { structure to store pixel data in }
+ TglBitmapPixelData = packed record
+ Data: TglBitmapRec4ui; //< color data for each color channel
+ Range: TglBitmapRec4ui; //< maximal color value for each channel
+ Format: TglBitmapFormat; //< format of the pixel
+ end;
+ PglBitmapPixelData = ^TglBitmapPixelData;
+
+ TglBitmapSizeFields = set of (ffX, ffY);
+ TglBitmapSize = packed record
+ Fields: TglBitmapSizeFields;
+ X: Word;
+ Y: Word;
+ end;
+ TglBitmapPixelPosition = TglBitmapSize;
+
{ describes the properties of a given texture data format }
TglBitmapFormatDescriptor = class(TObject)
private
{ @return @true if the format is a grayscale format, @false otherwise }
function GetIsGrayscale: Boolean;
+
+ { @return @true if the format is supported by OpenGL, @false otherwise }
+ function GetHasOpenGLSupport: Boolean;
+
protected
fFormat: TglBitmapFormat; //< format this descriptor belongs to
fWithAlpha: TglBitmapFormat; //< suitable format with alpha channel
property HasColor: Boolean read GetHasColor; //< @true if the format has any color color channel, @false otherwise
property IsGrayscale: Boolean read GetIsGrayscale; //< @true if the format is a grayscale format, @false otherwise
+ property HasOpenGLSupport: Boolean read GetHasOpenGLSupport; //< @true if the format is supported by OpenGL, @false otherwise
+
+ function GetSize(const aSize: TglBitmapSize): Integer; overload; virtual;
+ function GetSize(const aWidth, aHeight: Integer): Integer; overload; virtual;
+
{ constructor }
constructor Create;
public
end;
////////////////////////////////////////////////////////////////////////////////////////////////////
- { structure to store pixel data in }
- TglBitmapPixelData = packed record
- Data: TglBitmapRec4ui; //< color data for each color channel
- Range: TglBitmapRec4ui; //< maximal color value for each channel
- Format: TglBitmapFormat; //< format of the pixel
- end;
- PglBitmapPixelData = ^TglBitmapPixelData;
-
- TglBitmapSizeFields = set of (ffX, ffY);
- TglBitmapSize = packed record
- Fields: TglBitmapSizeFields;
- X: Word;
- Y: Word;
- end;
- TglBitmapPixelPosition = TglBitmapSize;
-
-////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap = class;
+ TglBitmapData = class;
{ structure to store data for converting in }
TglBitmapFunctionRec = record
- Sender: TglBitmap; //< texture object that stores the data to convert
+ Sender: TglBitmapData; //< texture object that stores the data to convert
Size: TglBitmapSize; //< size of the texture
Position: TglBitmapPixelPosition; //< position of the currently pixel
Source: TglBitmapPixelData; //< pixel data of the current pixel
TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- { base class for all glBitmap classes. used to manage OpenGL texture objects
- and to load, save and manipulate texture data }
- TglBitmap = class
- private
- { @returns format descriptor that describes the format of the stored data }
- function GetFormatDesc: TglBitmapFormatDescriptor;
- protected
- fID: GLuint; //< name of the OpenGL texture object
- fTarget: GLuint; //< texture target (e.g. GL_TEXTURE_2D)
- fAnisotropic: Integer; //< anisotropic level
- fDeleteTextureOnFree: Boolean; //< delete OpenGL texture object when this object is destroyed
- fFreeDataOnDestroy: Boolean; //< free stored data when this object is destroyed
- fFreeDataAfterGenTexture: Boolean; //< free stored data after data was uploaded to video card
- fData: PByte; //< data of this texture
-{$IFNDEF OPENGL_ES}
- fIsResident: GLboolean; //< @true if OpenGL texture object has data, @false otherwise
-{$ENDIF}
- fBorderColor: array[0..3] of Single; //< color of the texture border
+ { class to store texture data in. used to load, save and
+ manipulate data before assigned to texture object
+ all operations on a data object can be done from a background thread }
+ TglBitmapData = class
+ private { fields }
- fDimension: TglBitmapSize; //< size of this texture
- fMipMap: TglBitmapMipMap; //< mipmap type
- fFormat: TglBitmapFormat; //< format the texture data is stored in
+ fData: PByte; //< texture data
+ fDimension: TglBitmapSize; //< pixel size of the data
+ fFormat: TglBitmapFormat; //< format the texture data is stored in
+ fFilename: String; //< file the data was load from
- // Mapping
- fPixelSize: Integer; //< size of one pixel (in byte)
- fRowSize: Integer; //< size of one pixel row (in byte)
+ fScanlines: array of PByte; //< pointer to begin of each line
+ fHasScanlines: Boolean; //< @true if scanlines are initialized, @false otherwise
- // Filtering
- fFilterMin: GLenum; //< min filter to apply to the texture
- fFilterMag: GLenum; //< mag filter to apply to the texture
+ private { getter / setter }
- // TexturWarp
- fWrapS: GLenum; //< texture wrapping for x axis
- fWrapT: GLenum; //< texture wrapping for y axis
- fWrapR: GLenum; //< texture wrapping for z axis
+ { @returns the format descriptor suitable to the texture data format }
+ function GetFormatDescriptor: TglBitmapFormatDescriptor;
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
- //Swizzle
- fSwizzle: array[0..3] of GLenum; //< color channel swizzle
-{$IFEND}
+ { @returns the width of the texture data (in pixel) or -1 if no data is set }
+ function GetWidth: Integer;
- // CustomData
- fFilename: String; //< filename the texture was load from
- fCustomName: String; //< user defined name
- fCustomNameW: WideString; //< user defined name
- fCustomData: Pointer; //< user defined data
+ { @returns the height of the texture data (in pixel) or -1 if no data is set }
+ function GetHeight: Integer;
- protected
- { @returns the actual width of the texture }
- function GetWidth: Integer; virtual;
+ { get scanline at index aIndex
+ @returns Pointer to start of line or @nil }
+ function GetScanlines(const aIndex: Integer): PByte;
- { @returns the actual height of the texture }
- function GetHeight: Integer; virtual;
+ { set new value for the data format. only possible if new format has the same pixel size.
+ if you want to convert the texture data, see ConvertTo function }
+ procedure SetFormat(const aValue: TglBitmapFormat);
- { @returns the width of the texture or 1 if the width is zero }
- function GetFileWidth: Integer; virtual;
+ private { internal misc }
- { @returns the height of the texture or 1 if the height is zero }
- function GetFileHeight: Integer; virtual;
+ { splits a resource identifier into the resource and it's type
+ @param aResource resource identifier to split and store name in
+ @param aResType type of the resource }
+ procedure PrepareResType(var aResource: String; var aResType: PChar);
- protected
- { set a new value for fCustomData }
- procedure SetCustomData(const aValue: Pointer);
+ { updates scanlines array }
+ procedure UpdateScanlines;
- { set a new value for fCustomName }
- procedure SetCustomName(const aValue: String);
+ private { internal load and save }
+{$IFDEF GLB_SUPPORT_PNG_READ}
+ { try to load a PNG from a stream
+ @param aStream stream to load PNG from
+ @returns @true on success, @false otherwise }
+ function LoadPNG(const aStream: TStream): Boolean; virtual;
+{$ENDIF}
- { set a new value for fCustomNameW }
- procedure SetCustomNameW(const aValue: WideString);
+{$ifdef GLB_SUPPORT_PNG_WRITE}
+ { save texture data as PNG to stream
+ @param aStream stream to save data to}
+ procedure SavePNG(const aStream: TStream); virtual;
+{$ENDIF}
- { set new value for fFreeDataOnDestroy }
- procedure SetFreeDataOnDestroy(const aValue: Boolean);
+{$IFDEF GLB_SUPPORT_JPEG_READ}
+ { try to load a JPEG from a stream
+ @param aStream stream to load JPEG from
+ @returns @true on success, @false otherwise }
+ function LoadJPEG(const aStream: TStream): Boolean; virtual;
+{$ENDIF}
- { set new value for fDeleteTextureOnFree }
- procedure SetDeleteTextureOnFree(const aValue: Boolean);
+{$IFDEF GLB_SUPPORT_JPEG_WRITE}
+ { save texture data as JPEG to stream
+ @param aStream stream to save data to}
+ procedure SaveJPEG(const aStream: TStream); virtual;
+{$ENDIF}
- { set new value for the data format. only possible if new format has the same pixel size.
- if you want to convert the texture data, see ConvertTo function }
- procedure SetFormat(const aValue: TglBitmapFormat);
+ { try to load a RAW image from a stream
+ @param aStream stream to load RAW image from
+ @returns @true on success, @false otherwise }
+ function LoadRAW(const aStream: TStream): Boolean;
- { set new value for fFreeDataAfterGenTexture }
- procedure SetFreeDataAfterGenTexture(const aValue: Boolean);
+ { save texture data as RAW image to stream
+ @param aStream stream to save data to}
+ procedure SaveRAW(const aStream: TStream);
- { set name of OpenGL texture object }
- procedure SetID(const aValue: Cardinal);
+ { try to load a BMP from a stream
+ @param aStream stream to load BMP from
+ @returns @true on success, @false otherwise }
+ function LoadBMP(const aStream: TStream): Boolean;
- { set new value for fMipMap }
- procedure SetMipMap(const aValue: TglBitmapMipMap);
+ { save texture data as BMP to stream
+ @param aStream stream to save data to}
+ procedure SaveBMP(const aStream: TStream);
- { set new value for target }
- procedure SetTarget(const aValue: Cardinal);
+ { try to load a TGA from a stream
+ @param aStream stream to load TGA from
+ @returns @true on success, @false otherwise }
+ function LoadTGA(const aStream: TStream): Boolean;
- { set new value for fAnisotrophic }
- procedure SetAnisotropic(const aValue: Integer);
+ { save texture data as TGA to stream
+ @param aStream stream to save data to}
+ procedure SaveTGA(const aStream: TStream);
- protected
- { create OpenGL texture object (delete exisiting object if exists) }
- procedure CreateID;
+ { try to load a DDS from a stream
+ @param aStream stream to load DDS from
+ @returns @true on success, @false otherwise }
+ function LoadDDS(const aStream: TStream): Boolean;
- { setup texture parameters }
- procedure SetupParameters({$IFNDEF OPENGL_ES}out aBuildWithGlu: Boolean{$ENDIF});
+ { save texture data as DDS to stream
+ @param aStream stream to save data to}
+ procedure SaveDDS(const aStream: TStream);
- { set data pointer of texture data
- @param aData pointer to new texture data (be carefull, aData could be freed by this function)
- @param aFormat format of the data stored at aData
- @param aWidth width of the texture data
- @param aHeight height of the texture data }
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = -1; const aHeight: Integer = -1); virtual;
+ public { properties }
+ property Data: PByte read fData; //< texture data (be carefull with this!)
+ property Dimension: TglBitmapSize read fDimension; //< size of the texture data (in pixel)
+ property Filename: String read fFilename; //< file the data was loaded from
+ property Width: Integer read GetWidth; //< width of the texture data (in pixel)
+ property Height: Integer read GetHeight; //< height of the texture data (in pixel)
+ property Format: TglBitmapFormat read fFormat write SetFormat; //< format the texture data is stored in
+ property Scanlines[const aIndex: Integer]: PByte read GetScanlines; //< pointer to begin of line at given index or @nil
- { generate texture (upload texture data to video card)
- @param aTestTextureSize test texture size before uploading and raise exception if something is wrong }
- procedure GenTexture(const aTestTextureSize: Boolean = true); virtual; abstract;
+ property FormatDescriptor: TglBitmapFormatDescriptor read GetFormatDescriptor; //< descriptor object that describes the format of the stored data
+
+ public { flip }
{ flip texture horizontal
@returns @true in success, @false otherwise }
@returns @true in success, @false otherwise }
function FlipVert: Boolean; virtual;
- protected
- property Width: Integer read GetWidth; //< the actual width of the texture
- property Height: Integer read GetHeight; //< the actual height of the texture
-
- property FileWidth: Integer read GetFileWidth; //< the width of the texture or 1 if the width is zero
- property FileHeight: Integer read GetFileHeight; //< the height of the texture or 1 if the height is zero
- public
- property ID: Cardinal read fID write SetID; //< name of the OpenGL texture object
- property Target: Cardinal read fTarget write SetTarget; //< texture target (e.g. GL_TEXTURE_2D)
- property Format: TglBitmapFormat read fFormat write SetFormat; //< format the texture data is stored in
- property MipMap: TglBitmapMipMap read fMipMap write SetMipMap; //< mipmap type
- property Anisotropic: Integer read fAnisotropic write SetAnisotropic; //< anisotropic level
-
- property FormatDesc: TglBitmapFormatDescriptor read GetFormatDesc; //< format descriptor that describes the format of the stored data
-
- property Filename: String read fFilename; //< filename the texture was load from
- property CustomName: String read fCustomName write SetCustomName; //< user defined name (use at will)
- property CustomNameW: WideString read fCustomNameW write SetCustomNameW; //< user defined name (as WideString; use at will)
- property CustomData: Pointer read fCustomData write SetCustomData; //< user defined data (use at will)
-
- property DeleteTextureOnFree: Boolean read fDeleteTextureOnFree write SetDeleteTextureOnFree; //< delete texture object when this object is destroyed
- property FreeDataOnDestroy: Boolean read fFreeDataOnDestroy write SetFreeDataOnDestroy; //< free stored data when this object is destroyed
- property FreeDataAfterGenTexture: Boolean read fFreeDataAfterGenTexture write SetFreeDataAfterGenTexture; //< free stored data after it is uplaoded to video card
-
- property Dimension: TglBitmapSize read fDimension; //< size of the texture
- property Data: PByte read fData; //< texture data (or @nil if unset)
-{$IFNDEF OPENGL_ES}
- property IsResident: GLboolean read fIsResident; //< @true if OpenGL texture object has data, @false otherwise
-{$ENDIF}
-
- { this method is called after the constructor and sets the default values of this object }
- procedure AfterConstruction; override;
-
- { this method is called before the destructor and does some cleanup }
- procedure BeforeDestruction; override;
-
- { splits a resource identifier into the resource and it's type
- @param aResource resource identifier to split and store name in
- @param aResType type of the resource }
- procedure PrepareResType(var aResource: String; var aResType: PChar);
+ public { load }
- public
{ load a texture from a file
@param aFilename file to load texuture from }
procedure LoadFromFile(const aFilename: String);
{ use a function to generate texture data
@param aSize size of the texture
- @param aFunc callback to use for generation
@param aFormat format of the texture data
+ @param aFunc callback to use for generation
@param aArgs user defined paramaters (use at will) }
- procedure LoadFromFunc(const aSize: TglBitmapSize; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer = nil);
+ procedure LoadFromFunc(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer = nil);
{ load a texture from a resource
@param aInstance resource handle
@param aResType resource type }
procedure LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
- public
+ public { save }
+
{ save texture data to a file
@param aFilename filename to store texture in
@param aFileType file type to store data into }
@param aFileType file type to store data into }
procedure SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType); virtual;
- public
+ public { convert }
+
{ convert texture data using a user defined callback
@param aFunc callback to use for converting
@param aCreateTemp create a temporary buffer to use for converting
@param aFormat format of the new data
@param aArgs user defined paramters (use at will)
@returns @true if converting was successful, @false otherwise }
- function Convert(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
+ function Convert(const aSource: TglBitmapData; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
const aFormat: TglBitmapFormat; const aArgs: Pointer = nil): Boolean; overload;
{ convert texture data using a specific format
function ConvertTo(const aFormat: TglBitmapFormat): Boolean; virtual;
{$IFDEF GLB_SDL}
- public
+ public { SDL }
+
{ assign texture data to SDL surface
@param aSurface SDL surface to write data to
@returns @true on success, @false otherwise }
{$ENDIF}
{$IFDEF GLB_DELPHI}
- public
+ public { Delphi }
+
{ assign texture data to TBitmap object
@param aBitmap TBitmap to write data to
@returns @true on success, @false otherwise }
{$ENDIF}
{$IFDEF GLB_LAZARUS}
- public
+ public { Lazarus }
+
{ assign texture data to TLazIntfImage object
@param aImage TLazIntfImage to write data to
@returns @true on success, @false otherwise }
function AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
{$ENDIF}
- public
+ public { Alpha }
{ load alpha channel data from resource
@param aInstance resource handle
@param aResource resource ID
{ add alpha channel data from file (macro for: new glBitmap, LoadFromFile, AddAlphaFromGlBitmap)
@param aFilename file to load alpha channel data from
@param aFunc callback to use for converting
- @param aArgs user defined parameters (use at will)
+ @param aArgs SetFormat user defined parameters (use at will)
@returns @true on success, @false otherwise }
function AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
@param aFunc callback to use for converting
@param aArgs user defined parameters (use at will)
@returns @true on success, @false otherwise }
- function AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+ function AddAlphaFromDataObj(const aDataObj: TglBitmapData; aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
{ add alpha to pixel if the pixels color is greter than the given color value
@param aRed red threshold (0-255)
@returns @true on success, @false otherwise }
function RemoveAlpha: Boolean; virtual;
- public
- { create a clone of the current object
- @returns clone of this object}
- function Clone: TglBitmap;
-
- { invert color data (xor)
- @param aUseRGB xor each color channel
- @param aUseAlpha xor alpha channel }
- procedure Invert(const aUseRGB: Boolean = true; const aUseAlpha: Boolean = false);
-
- { free texture stored data }
- procedure FreeData;
-
-{$IFNDEF OPENGL_ES}
- { set the new value for texture border color
- @param aRed red color for border (0.0-1.0)
- @param aGreen green color for border (0.0-1.0)
- @param aBlue blue color for border (0.0-1.0)
- @param aAlpha alpha color for border (0.0-1.0) }
- procedure SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
-{$ENDIF}
-
- public
+ public { fill }
{ fill complete texture with one color
@param aRed red color for border (0-255)
@param aGreen green color for border (0-255)
@param aAlpha alpha color for border (0.0-1.0) }
procedure FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha: Single = 1.0);
- public
- { set new texture filer
- @param aMin min filter
- @param aMag mag filter }
- procedure SetFilter(const aMin, aMag: GLenum);
+ public { Misc }
- { set new texture wrapping
- @param S texture wrapping for x axis
- @param T texture wrapping for y axis
- @param R texture wrapping for z axis }
- procedure SetWrap(
- const S: GLenum = GL_CLAMP_TO_EDGE;
- const T: GLenum = GL_CLAMP_TO_EDGE;
- const R: GLenum = GL_CLAMP_TO_EDGE);
+ { set data pointer of texture data
+ @param aData pointer to new texture data
+ @param aFormat format of the data stored at aData
+ @param aWidth width of the texture data
+ @param aHeight height of the texture data }
+ procedure SetData(const aData: PByte; const aFormat: TglBitmapFormat;
+ const aWidth: Integer = -1; const aHeight: Integer = -1); virtual;
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
- { set new swizzle
- @param r swizzle for red channel
- @param g swizzle for green channel
- @param b swizzle for blue channel
- @param a swizzle for alpha channel }
- procedure SetSwizzle(const r, g, b, a: GLenum);
-{$IFEND}
+ { create a clone of the current object
+ @returns clone of this object}
+ function Clone: TglBitmapData;
- public
- { bind texture
- @param aEnableTextureUnit enable texture unit for this texture (e.g. glEnable(GL_TEXTURE_2D)) }
- procedure Bind(const aEnableTextureUnit: Boolean = true); virtual;
+ { invert color data (bitwise not)
+ @param aRed invert red channel
+ @param aGreen invert green channel
+ @param aBlue invert blue channel
+ @param aAlpha invert alpha channel }
+ procedure Invert(const aRed, aGreen, aBlue, aAlpha: Boolean);
- { bind texture
- @param aDisableTextureUnit disable texture unit for this texture (e.g. glEnable(GL_TEXTURE_2D)) }
- procedure Unbind(const aDisableTextureUnit: Boolean = true); virtual;
+ { create normal map from texture data
+ @param aFunc normal map function to generate normalmap with
+ @param aScale scale of the normale stored in the normal map
+ @param aUseAlpha generate normalmap from alpha channel data (if present) }
+ procedure GenerateNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3;
+ const aScale: Single = 2; const aUseAlpha: Boolean = false);
- public
- { constructor - created an empty texture }
+ public { constructor }
+
+ { constructor - creates a texutre data object }
constructor Create; overload;
- { constructor - creates a texture and load it from a file
+ { constructor - creates a texture data object and loads it from a file
@param aFilename file to load texture from }
constructor Create(const aFileName: String); overload;
- { constructor - creates a texture and load it from a stream
+ { constructor - creates a texture data object and loads it from a stream
@param aStream stream to load texture from }
constructor Create(const aStream: TStream); overload;
- { constructor - creates a texture with the given size, format and data
+ { constructor - creates a texture data object with the given size, format and data
@param aSize size of the texture
@param aFormat format of the given data
- @param aData texture data - be carefull: the data will now be managed by the glBitmap object,
- you can control this by setting DeleteTextureOnFree, FreeDataOnDestroy and FreeDataAfterGenTexture }
+ @param aData texture data - be carefull: the data will now be managed by the texture data object }
constructor Create(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; aData: PByte = nil); overload;
- { constructor - creates a texture with the given size and format and uses the given callback to create the data
+ { constructor - creates a texture data object with the given size and format and uses the given callback to create the data
@param aSize size of the texture
@param aFormat format of the given data
@param aFunc callback to use for generating the data
@param aArgs user defined parameters (use at will) }
constructor Create(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer = nil); overload;
- { constructor - creates a texture and loads it from a resource
+ { constructor - creates a texture data object and loads it from a resource
@param aInstance resource handle
@param aResource resource indentifier
@param aResType resource type (if known) }
constructor Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil); overload;
- { constructor - creates a texture and loads it from a resource
+ { constructor - creates a texture data object and loads it from a resource
@param aInstance resource handle
@param aResourceID resource ID
@param aResType resource type (if known) }
constructor Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar); overload;
- private
-{$IFDEF GLB_SUPPORT_PNG_READ}
- { try to load a PNG from a stream
- @param aStream stream to load PNG from
- @returns @true on success, @false otherwise }
- function LoadPNG(const aStream: TStream): Boolean; virtual;
-{$ENDIF}
+ { destructor }
+ destructor Destroy; override;
-{$ifdef GLB_SUPPORT_PNG_WRITE}
- { save texture data as PNG to stream
- @param aStream stream to save data to}
- procedure SavePNG(const aStream: TStream); virtual;
+ end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+ { base class for all glBitmap classes. used to manage OpenGL texture objects
+ all operations on a bitmap object must be done from the render thread }
+ TglBitmap = class
+ protected
+ fID: GLuint; //< name of the OpenGL texture object
+ fTarget: GLuint; //< texture target (e.g. GL_TEXTURE_2D)
+ fDeleteTextureOnFree: Boolean; //< delete OpenGL texture object when this object is destroyed
+
+ // texture properties
+ fFilterMin: GLenum; //< min filter to apply to the texture
+ fFilterMag: GLenum; //< mag filter to apply to the texture
+ fWrapS: GLenum; //< texture wrapping for x axis
+ fWrapT: GLenum; //< texture wrapping for y axis
+ fWrapR: GLenum; //< texture wrapping for z axis
+ fAnisotropic: Integer; //< anisotropic level
+ fBorderColor: array[0..3] of Single; //< color of the texture border
+
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
+ //Swizzle
+ fSwizzle: array[0..3] of GLenum; //< color channel swizzle
+{$IFEND}
+{$IFNDEF OPENGL_ES}
+ fIsResident: GLboolean; //< @true if OpenGL texture object has data, @false otherwise
{$ENDIF}
-{$IFDEF GLB_SUPPORT_JPEG_READ}
- { try to load a JPEG from a stream
- @param aStream stream to load JPEG from
- @returns @true on success, @false otherwise }
- function LoadJPEG(const aStream: TStream): Boolean; virtual;
+ fDimension: TglBitmapSize; //< size of this texture
+ fMipMap: TglBitmapMipMap; //< mipmap type
+
+ // CustomData
+ fCustomData: Pointer; //< user defined data
+ fCustomName: String; //< user defined name
+ fCustomNameW: WideString; //< user defined name
+ protected
+ { @returns the actual width of the texture }
+ function GetWidth: Integer; virtual;
+
+ { @returns the actual height of the texture }
+ function GetHeight: Integer; virtual;
+
+ protected
+ { set a new value for fCustomData }
+ procedure SetCustomData(const aValue: Pointer);
+
+ { set a new value for fCustomName }
+ procedure SetCustomName(const aValue: String);
+
+ { set a new value for fCustomNameW }
+ procedure SetCustomNameW(const aValue: WideString);
+
+ { set new value for fDeleteTextureOnFree }
+ procedure SetDeleteTextureOnFree(const aValue: Boolean);
+
+ { set name of OpenGL texture object }
+ procedure SetID(const aValue: Cardinal);
+
+ { set new value for fMipMap }
+ procedure SetMipMap(const aValue: TglBitmapMipMap);
+
+ { set new value for target }
+ procedure SetTarget(const aValue: Cardinal);
+
+ { set new value for fAnisotrophic }
+ procedure SetAnisotropic(const aValue: Integer);
+
+ protected
+ { create OpenGL texture object (delete exisiting object if exists) }
+ procedure CreateID;
+
+ { setup texture parameters }
+ procedure SetupParameters({$IFNDEF OPENGL_ES}out aBuildWithGlu: Boolean{$ENDIF});
+
+ protected
+ property Width: Integer read GetWidth; //< the actual width of the texture
+ property Height: Integer read GetHeight; //< the actual height of the texture
+
+ public
+ property ID: Cardinal read fID write SetID; //< name of the OpenGL texture object
+ property Target: Cardinal read fTarget write SetTarget; //< texture target (e.g. GL_TEXTURE_2D)
+ property DeleteTextureOnFree: Boolean read fDeleteTextureOnFree write SetDeleteTextureOnFree; //< delete texture object when this object is destroyed
+
+ property MipMap: TglBitmapMipMap read fMipMap write SetMipMap; //< mipmap type
+ property Anisotropic: Integer read fAnisotropic write SetAnisotropic; //< anisotropic level
+
+ property CustomData: Pointer read fCustomData write SetCustomData; //< user defined data (use at will)
+ property CustomName: String read fCustomName write SetCustomName; //< user defined name (use at will)
+ property CustomNameW: WideString read fCustomNameW write SetCustomNameW; //< user defined name (as WideString; use at will)
+
+ property Dimension: TglBitmapSize read fDimension; //< size of the texture
+{$IFNDEF OPENGL_ES}
+ property IsResident: GLboolean read fIsResident; //< @true if OpenGL texture object has data, @false otherwise
{$ENDIF}
-{$IFDEF GLB_SUPPORT_JPEG_WRITE}
- { save texture data as JPEG to stream
- @param aStream stream to save data to}
- procedure SaveJPEG(const aStream: TStream); virtual;
+ { this method is called after the constructor and sets the default values of this object }
+ procedure AfterConstruction; override;
+
+ { this method is called before the destructor and does some cleanup }
+ procedure BeforeDestruction; override;
+
+ public
+{$IFNDEF OPENGL_ES}
+ { set the new value for texture border color
+ @param aRed red color for border (0.0-1.0)
+ @param aGreen green color for border (0.0-1.0)
+ @param aBlue blue color for border (0.0-1.0)
+ @param aAlpha alpha color for border (0.0-1.0) }
+ procedure SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
{$ENDIF}
- { try to load a RAW image from a stream
- @param aStream stream to load RAW image from
- @returns @true on success, @false otherwise }
- function LoadRAW(const aStream: TStream): Boolean;
+ public
+ { set new texture filer
+ @param aMin min filter
+ @param aMag mag filter }
+ procedure SetFilter(const aMin, aMag: GLenum);
- { save texture data as RAW image to stream
- @param aStream stream to save data to}
- procedure SaveRAW(const aStream: TStream);
+ { set new texture wrapping
+ @param S texture wrapping for x axis
+ @param T texture wrapping for y axis
+ @param R texture wrapping for z axis }
+ procedure SetWrap(
+ const S: GLenum = GL_CLAMP_TO_EDGE;
+ const T: GLenum = GL_CLAMP_TO_EDGE;
+ const R: GLenum = GL_CLAMP_TO_EDGE);
- { try to load a BMP from a stream
- @param aStream stream to load BMP from
- @returns @true on success, @false otherwise }
- function LoadBMP(const aStream: TStream): Boolean;
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
+ { set new swizzle
+ @param r swizzle for red channel
+ @param g swizzle for green channel
+ @param b swizzle for blue channel
+ @param a swizzle for alpha channel }
+ procedure SetSwizzle(const r, g, b, a: GLenum);
+{$IFEND}
- { save texture data as BMP to stream
- @param aStream stream to save data to}
- procedure SaveBMP(const aStream: TStream);
+ public
+ { bind texture
+ @param aEnableTextureUnit enable texture unit for this texture (e.g. glEnable(GL_TEXTURE_2D)) }
+ procedure Bind(const aEnableTextureUnit: Boolean = true); virtual;
- { try to load a TGA from a stream
- @param aStream stream to load TGA from
- @returns @true on success, @false otherwise }
- function LoadTGA(const aStream: TStream): Boolean;
+ { bind texture
+ @param aDisableTextureUnit disable texture unit for this texture (e.g. glEnable(GL_TEXTURE_2D)) }
+ procedure Unbind(const aDisableTextureUnit: Boolean = true); virtual;
- { save texture data as TGA to stream
- @param aStream stream to save data to}
- procedure SaveTGA(const aStream: TStream);
+ { upload texture data from given data object to video card
+ @param aData texture data object that contains the actual data
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean = true); virtual;
- { try to load a DDS from a stream
- @param aStream stream to load DDS from
- @returns @true on success, @false otherwise }
- function LoadDDS(const aStream: TStream): Boolean;
+{$IFNDEF OPENGL_ES}
+ { download texture data from video card and store it into given data object
+ @returns @true when download was successfull, @false otherwise }
+ function DownloadData(const aDataObj: TglBitmapData): Boolean; virtual;
+{$ENDIF}
+ public
+ { constructor - creates an empty texture }
+ constructor Create; overload;
+
+ { constructor - creates an texture object and uploads the given data }
+ constructor Create(const aData: TglBitmapData); overload;
- { save texture data as DDS to stream
- @param aStream stream to save data to}
- procedure SaveDDS(const aStream: TStream);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
{$IF NOT DEFINED(OPENGL_ES)}
- { wrapper class for 1-dimensional textures (OpenGL target = GL_TEXTURE_1D }
+ { wrapper class for 1-dimensional textures (OpenGL target = GL_TEXTURE_1D
+ all operations on a bitmap object must be done from the render thread }
TglBitmap1D = class(TglBitmap)
protected
- { set data pointer of texture data
- @param aData pointer to new texture data (be carefull, aData could be freed by this function)
- @param aFormat format of the data stored at aData
- @param aWidth width of the texture data
- @param aHeight height of the texture data }
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat; const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
{ upload the texture data to video card
+ @param aDataObj texture data object that contains the actual data
@param aBuildWithGlu use glu functions to build mipmaps }
- procedure UploadData(const aBuildWithGlu: Boolean);
+ procedure UploadDataIntern(const aDataObj: TglBitmapData; const aBuildWithGlu: Boolean);
+
public
property Width; //< actual with of the texture
{ this method is called after constructor and initializes the object }
procedure AfterConstruction; override;
- { flip texture horizontally
- @returns @true on success, @fals otherwise }
- function FlipHorz: Boolean; override;
+ { upload texture data from given data object to video card
+ @param aData texture data object that contains the actual data
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean = true); override;
- { generate texture (create texture object if not exist, set texture parameters and upload data
- @param aTestTextureSize check the size of the texture and throw exception if something is wrong }
- procedure GenTexture(const aTestTextureSize: Boolean = true); override;
end;
{$IFEND}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- { wrapper class for 2-dimensional textures (OpenGL target = GL_TEXTURE_2D) }
+ { wrapper class for 2-dimensional textures (OpenGL target = GL_TEXTURE_2D)
+ all operations on a bitmap object must be done from the render thread }
TglBitmap2D = class(TglBitmap)
protected
- fLines: array of PByte; //< array to store scanline entry points in
-
- { get a specific scanline
- @param aIndex index of the scanline to return
- @returns scanline at position aIndex or @nil }
- function GetScanline(const aIndex: Integer): Pointer;
-
- { set data pointer of texture data
- @param aData pointer to new texture data (be carefull, aData could be freed by this function)
- @param aFormat format of the data stored at aData
- @param aWidth width of the texture data
- @param aHeight height of the texture data }
- procedure SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
{ upload the texture data to video card
+ @param aDataObj texture data object that contains the actual data
@param aTarget target o upload data to (e.g. GL_TEXTURE_2D)
@param aBuildWithGlu use glu functions to build mipmaps }
- procedure UploadData(const aTarget: GLenum{$IFNDEF OPENGL_ES}; const aBuildWithGlu: Boolean{$ENDIF});
+ procedure UploadDataIntern(const aDataObj: TglBitmapData; const aTarget: GLenum
+ {$IFNDEF OPENGL_ES}; const aBuildWithGlu: Boolean{$ENDIF});
+
public
- property Width; //< actual width of the texture
- property Height; //< actual height of the texture
- property Scanline[const aIndex: Integer]: Pointer read GetScanline; //< scanline to access texture data directly
+ property Width; //< actual width of the texture
+ property Height; //< actual height of the texture
{ this method is called after constructor and initializes the object }
procedure AfterConstruction; override;
- { copy a part of the frame buffer top the texture
+ { upload texture data from given data object to video card
+ @param aData texture data object that contains the actual data
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean = true); override;
+
+ public
+
+ { copy a part of the frame buffer to the texture
@param aTop topmost pixel to copy
@param aLeft leftmost pixel to copy
@param aRight rightmost pixel to copy
@param aBottom bottommost pixel to copy
- @param aFormat format to store data in }
- procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
-
-{$IFNDEF OPENGL_ES}
- { downlaod texture data from OpenGL texture object }
- procedure GetDataFromTexture;
-{$ENDIF}
+ @param aFormat format to store data in
+ @param aDataObj texture data object to store the data in }
+ class procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat; const aDataObj: TglBitmapData);
- { generate texture (create texture object if not exist, set texture parameters and upload data)
- @param aTestTextureSize check the size of the texture and throw exception if something is wrong }
- procedure GenTexture(const aTestTextureSize: Boolean = true); override;
-
- { flip texture horizontally
- @returns @true on success, @false otherwise }
- function FlipHorz: Boolean; override;
-
- { flip texture vertically
- @returns @true on success, @false otherwise }
- function FlipVert: Boolean; override;
-
- { create normal map from texture data
- @param aFunc normal map function to generate normalmap with
- @param aScale scale of the normale stored in the normal map
- @param aUseAlpha generate normalmap from alpha channel data (if present) }
- procedure GenerateNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3;
- const aScale: Single = 2; const aUseAlpha: Boolean = false);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_2_0)}
- { wrapper class for cube maps (OpenGL target = GL_TEXTURE_CUBE_MAP) }
+ { wrapper class for cube maps (OpenGL target = GL_TEXTURE_CUBE_MAP)
+ all operations on a bitmap object must be done from the render thread }
TglBitmapCubeMap = class(TglBitmap2D)
protected
{$IFNDEF OPENGL_ES}
fGenMode: Integer; //< generation mode for the cube map (e.g. GL_REFLECTION_MAP)
{$ENDIF}
- { generate texture (create texture object if not exist, set texture parameters and upload data
- do not call directly for cubemaps, use GenerateCubeMap instead
- @param aTestTextureSize check the size of the texture and throw exception if something is wrong }
- procedure GenTexture(const aTestTextureSize: Boolean = true); reintroduce;
public
{ this method is called after constructor and initializes the object }
procedure AfterConstruction; override;
- { generate texture (create texture object if not exist, set texture parameters and upload data
- @param aCubeTarget cube map target to upload data to (e.g. GL_TEXTURE_CUBE_MAP_POSITIVE_X)
- @param aTestTextureSize check the size of the texture and throw exception if something is wrong }
- procedure GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean = true);
+ { upload texture data from given data object to video card
+ @param aData texture data object that contains the actual data
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean = true); override;
+
+ { upload texture data from given data object to video card
+ @param aData texture data object that contains the actual data
+ @param aCubeTarget cube map target to upload data to (e.g. GL_TEXTURE_CUBE_MAP_POSITIVE_X)
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure UploadCubeMap(const aDataObj: TglBitmapData; const aCubeTarget: Cardinal; const aCheckSize: Boolean);
{ bind texture
@param aEnableTexCoordsGen enable cube map generator
{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_2_0)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- { wrapper class for cube normal maps }
+ { wrapper class for cube normal maps
+ all operations on a bitmap object must be done from the render thread }
TglBitmapNormalMap = class(TglBitmapCubeMap)
public
{ this method is called after constructor and initializes the object }
procedure AfterConstruction; override;
{ create cube normal map from texture data and upload it to video card
- @param aSize size of each cube map texture
- @param aTestTextureSize check texture size when uploading and throw exception if something is wrong }
- procedure GenerateNormalMap(const aSize: Integer = 32; const aTestTextureSize: Boolean = true);
+ @param aSize size of each cube map texture
+ @param aCheckSize check size before upload and throw exception if something is wrong }
+ procedure GenerateNormalMap(const aSize: Integer = 32; const aCheckSize: Boolean = true);
end;
{$IFEND}
function glBitmapRec4ubCompare(const r1, r2: TglBitmapRec4ub): Boolean;
function glBitmapRec4uiCompare(const r1, r2: TglBitmapRec4ui): Boolean;
-function glBitmapCreateTestTexture(const aFormat: TglBitmapFormat): TglBitmap2D;
+function glBitmapCreateTestData(const aFormat: TglBitmapFormat): TglBitmapData;
{$IFDEF GLB_DELPHI}
function CreateGrayPalette: HPALETTE;
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: TglBitmapSize): Integer; overload; virtual;
- function GetSize(const aWidth, aHeight: Integer): Integer; overload; virtual;
-
function CreateMappingData: Pointer; virtual;
procedure FreeMappingData(var aMappingData: Pointer); virtual;
TbmpColorTable = array of TbmpColorTableEnty;
TbmpColorTableFormat = class(TFormatDescriptor)
private
- fBitsPerPixel: Integer;
fColorTable: TbmpColorTable;
protected
procedure SetValues; override;
public
property ColorTable: TbmpColorTable read fColorTable write fColorTable;
- property BitsPerPixel: Integer read fBitsPerPixel write fBitsPerPixel;
procedure SetCustomValues(const aFormat: TglBitmapFormat; const aBPP: Integer; const aPrec, aShift: TglBitmapRec4ub); overload;
procedure CalcValues;
procedure CreateColorTable;
+ function CreateMappingData: Pointer; override;
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;
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmapCreateTestTexture(const aFormat: TglBitmapFormat): TglBitmap2D;
+function glBitmapCreateTestData(const aFormat: TglBitmapFormat): TglBitmapData;
var
desc: TFormatDescriptor;
p, tmp: PByte;
desc.FreeMappingData(md);
end;
- result := TglBitmap2D.Create(glBitmapPosition(5, 5), aFormat, p);
- result.FreeDataOnDestroy := true;
- result.FreeDataAfterGenTexture := false;
- result.SetFilter(GL_NEAREST, GL_NEAREST);
+ result := TglBitmapData.Create(glBitmapPosition(5, 5), aFormat, p);
end;
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
b := glDefaultSwizzle[2];
a := glDefaultSwizzle[3];
end;
-{$ENDIF}
+{$IFEND}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TFormatDescriptor.GetSize(const aSize: TglBitmapSize): 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 * BytesPerPixel);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function TFormatDescriptor.CreateMappingData: Pointer;
begin
result := nil;
result := (Mask.r = Mask.g) and (Mask.g = Mask.b) and (Mask.r > 0);
end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapFormatDescriptor.GetHasOpenGLSupport: Boolean;
+begin
+ result := (OpenGLFormat = Format);
+end;
+
procedure TglBitmapFormatDescriptor.SetValues;
begin
fFormat := tfEmpty;
end;
end;
+function TglBitmapFormatDescriptor.GetSize(const aSize: TglBitmapSize): 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 TglBitmapFormatDescriptor.GetSize(const aWidth, aHeight: Integer): Integer;
+begin
+ result := 0;
+ if (aWidth <= 0) or (aHeight <= 0) then
+ exit;
+ result := Ceil(aWidth * aHeight * BytesPerPixel);
+end;
+
constructor TglBitmapFormatDescriptor.Create;
begin
inherited Create;
begin
for i := 0 to 3 do begin
fShift.arr[i] := 0;
- while (aMask.arr[i] > 0) and (aMask.arr[i] and 1 > 0) do begin
+ while (aMask.arr[i] > 0) and ((aMask.arr[i] and 1) = 0) do begin
aMask.arr[i] := aMask.arr[i] shr 1;
inc(fShift.arr[i]);
end;
fPrecision.arr[i] := CountSetBits(aMask.arr[i]);
end;
+ fBitsPerPixel := aBPP;
CalcValues;
end;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TbmpColorTableFormat.CreateMappingData: Pointer;
+begin
+ result := Pointer(0);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
procedure TbmpColorTableFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
begin
if (BitsPerPixel <> 8) then
else
// normal
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));
+ ((aPixel.Data.r shr Shift.r) and Range.r) * LUMINANCE_WEIGHT_R +
+ ((aPixel.Data.g shr Shift.g) and Range.g) * LUMINANCE_WEIGHT_G +
+ ((aPixel.Data.b shr Shift.b) and Range.b) * LUMINANCE_WEIGHT_B);
inc(aData);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
procedure TbmpColorTableFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
+
+ function ReadValue: Byte;
+ var
+ i: PtrUInt;
+ begin
+ if (BitsPerPixel = 8) then begin
+ result := aData^;
+ inc(aData);
+ end else begin
+ i := {%H-}PtrUInt(aMapData);
+ if (BitsPerPixel > 1) then
+ result := (aData^ shr i) and ((1 shl BitsPerPixel) - 1)
+ else
+ result := (aData^ shr (7-i)) and ((1 shl BitsPerPixel) - 1);
+ inc(i, BitsPerPixel);
+ while (i >= 8) do begin
+ inc(aData);
+ dec(i, 8);
+ end;
+ aMapData := {%H-}Pointer(i);
+ end;
+ end;
+
begin
- if (BitsPerPixel <> 8) then
+ if (BitsPerPixel > 8) then
raise EglBitmapUnsupportedFormat.Create('color table are only supported for 8bit formats');
- with fColorTable[aData^] do begin
+ with fColorTable[ReadValue] do begin
aPixel.Data.r := r;
aPixel.Data.g := g;
aPixel.Data.b := b;
aPixel.Data.a := a;
end;
- inc(aData, 1);
end;
destructor TbmpColorTableFormat.Destroy;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
procedure glBitmapInvertFunc(var aFuncRec: TglBitmapFunctionRec);
+var
+ i: Integer;
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;
+ for i := 0 to 3 do
+ if ({%H-}PtrUInt(Args) and (1 shl i) > 0) then
+ Dest.Data.arr[i] := Dest.Data.arr[i] xor Dest.Range.arr[i];
end;
end;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap - PROTECTED///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmapData///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetFormatDesc: TglBitmapFormatDescriptor;
+function TglBitmapData.GetFormatDescriptor: TglBitmapFormatDescriptor;
begin
- result := TFormatDescriptor.Get(Format);
+ result := TFormatDescriptor.Get(fFormat);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetWidth: Integer;
+function TglBitmapData.GetWidth: Integer;
begin
if (ffX in fDimension.Fields) then
result := fDimension.X
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.GetHeight: Integer;
+function TglBitmapData.GetHeight: Integer;
begin
if (ffY in fDimension.Fields) then
result := fDimension.Y
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);
+function TglBitmapData.GetScanlines(const aIndex: Integer): PByte;
begin
- if fDeleteTextureOnFree = aValue then
- exit;
- fDeleteTextureOnFree := aValue;
+ if fHasScanlines and (aIndex >= Low(fScanlines)) and (aIndex <= High(fScanlines)) then
+ result := fScanlines[aIndex]
+ else
+ result := nil;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFormat(const aValue: TglBitmapFormat);
+procedure TglBitmapData.SetFormat(const aValue: TglBitmapFormat);
begin
if fFormat = aValue then
exit;
if TFormatDescriptor.Get(Format).BitsPerPixel <> TFormatDescriptor.Get(aValue).BitsPerPixel then
raise EglBitmapUnsupportedFormat.Create(Format);
- SetDataPointer(fData, aValue, Width, Height); //be careful, Data could be freed by this method
+ SetData(fData, aValue, Width, Height);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetFreeDataAfterGenTexture(const aValue: Boolean);
+procedure TglBitmapData.PrepareResType(var aResource: String; var aResType: PChar);
+var
+ TempPos: Integer;
begin
- if fFreeDataAfterGenTexture = aValue then
- exit;
- fFreeDataAfterGenTexture := aValue;
+ 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.SetID(const aValue: Cardinal);
-begin
- if fID = aValue then
- exit;
- fID := aValue;
+procedure TglBitmapData.UpdateScanlines;
+var
+ w, h, i, LineWidth: Integer;
+begin
+ w := Width;
+ h := Height;
+ fHasScanlines := Assigned(fData) and (w > 0) and (h > 0);
+ if fHasScanlines then begin
+ SetLength(fScanlines, h);
+ LineWidth := Trunc(w * FormatDescriptor.BytesPerPixel);
+ for i := 0 to h-1 do begin
+ fScanlines[i] := fData;
+ Inc(fScanlines[i], i * LineWidth);
+ end;
+ end else
+ SetLength(fScanlines, 0);
end;
+{$IFDEF GLB_SUPPORT_PNG_READ}
+{$IF DEFINED(GLB_LAZ_PNG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetMipMap(const aValue: TglBitmapMipMap);
+//PNG/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.LoadPNG(const aStream: TStream): Boolean;
+const
+ MAGIC_LEN = 8;
+ PNG_MAGIC: String[MAGIC_LEN] = #$89#$50#$4E#$47#$0D#$0A#$1A#$0A;
+var
+ reader: TLazReaderPNG;
+ intf: TLazIntfImage;
+ StreamPos: Int64;
+ magic: String[MAGIC_LEN];
begin
- if fMipMap = aValue then
+ result := true;
+ StreamPos := aStream.Position;
+
+ SetLength(magic, MAGIC_LEN);
+ aStream.Read(magic[1], MAGIC_LEN);
+ aStream.Position := StreamPos;
+ if (magic <> PNG_MAGIC) then begin
+ result := false;
exit;
- fMipMap := aValue;
-end;
+ end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetTarget(const aValue: Cardinal);
-begin
- if fTarget = aValue then
+ intf := TLazIntfImage.Create(0, 0);
+ reader := TLazReaderPNG.Create;
+ try try
+ reader.UpdateDescription := true;
+ reader.ImageRead(aStream, intf);
+ AssignFromLazIntfImage(intf);
+ except
+ result := false;
+ aStream.Position := StreamPos;
exit;
- fTarget := aValue;
+ end;
+ finally
+ reader.Free;
+ intf.Free;
+ end;
end;
+{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetAnisotropic(const aValue: Integer);
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_EXT)}
+function TglBitmapData.LoadPNG(const aStream: TStream): Boolean;
var
- MaxAnisotropic: Integer;
-{$IFEND}
+ Surface: PSDL_Surface;
+ RWops: PSDL_RWops;
begin
- fAnisotropic := aValue;
- if (ID > 0) then begin
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_EXT)}
- if GL_EXT_texture_filter_anisotropic then begin
- if fAnisotropic > 0 then begin
- Bind(false);
- glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, @MaxAnisotropic);
- if aValue > MaxAnisotropic then
- fAnisotropic := MaxAnisotropic;
- glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
+ result := false;
+ RWops := glBitmapCreateRWops(aStream);
+ try
+ if IMG_isPNG(RWops) > 0 then begin
+ Surface := IMG_LoadPNG_RW(RWops);
+ try
+ AssignFromSurface(Surface);
+ result := true;
+ finally
+ SDL_FreeSurface(Surface);
end;
- end else begin
- fAnisotropic := 0;
end;
-{$ELSE}
- fAnisotropic := 0;
-{$IFEND}
+ finally
+ SDL_FreeRW(RWops);
end;
end;
+{$ELSEIF DEFINED(GLB_LIB_PNG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.CreateID;
-begin
- if (ID <> 0) then
- glDeleteTextures(1, @fID);
- glGenTextures(1, @fID);
- Bind(false);
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetupParameters({$IFNDEF OPENGL_ES}out aBuildWithGlu: Boolean{$ENDIF});
+procedure glBitmap_libPNG_read_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
begin
- // Set Up Parameters
- SetWrap(fWrapS, fWrapT, fWrapR);
- SetFilter(fFilterMin, fFilterMag);
- SetAnisotropic(fAnisotropic);
-
-{$IFNDEF OPENGL_ES}
- SetBorderColor(fBorderColor[0], fBorderColor[1], fBorderColor[2], fBorderColor[3]);
- if (GL_ARB_texture_swizzle or GL_EXT_texture_swizzle or GL_VERSION_3_3) then
- SetSwizzle(fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
-{$ENDIF}
-
-{$IFNDEF OPENGL_ES}
- // Mip Maps Generation Mode
- aBuildWithGlu := false;
- if (MipMap = mmMipmap) then begin
- if (GL_VERSION_1_4 or GL_SGIS_generate_mipmap) then
- glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE)
- else
- aBuildWithGlu := true;
- end else if (MipMap = mmMipmapGlu) then
- aBuildWithGlu := true;
-{$ELSE}
- if (MipMap = mmMipmap) then
- glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE);
-{$ENDIF}
+ TStream(png_get_io_ptr(png)).Read(buffer^, size);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
+function TglBitmapData.LoadPNG(const aStream: TStream): Boolean;
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;
+ StreamPos: Int64;
+ signature: array [0..7] of byte;
+ png: png_structp;
+ png_info: png_infop;
- s := TFormatDescriptor.Get(aFormat).BytesPerPixel;
- fFormat := aFormat;
- fPixelSize := Ceil(s);
- fRowSize := Ceil(s * aWidth);
- end;
-end;
+ TempHeight, TempWidth: Integer;
+ Format: TglBitmapFormat;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.FlipHorz: Boolean;
+ png_data: pByte;
+ png_rows: array of pByte;
+ Row, LineSize: Integer;
begin
result := false;
-end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.FlipVert: Boolean;
-begin
- result := false;
-end;
+ if not init_libPNG then
+ raise Exception.Create('LoadPNG - unable to initialize libPNG.');
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap - PUBLIC//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.AfterConstruction;
-begin
- inherited AfterConstruction;
+ try
+ // signature
+ StreamPos := aStream.Position;
+ aStream.Read(signature{%H-}, 8);
+ aStream.Position := StreamPos;
- fID := 0;
- fTarget := 0;
-{$IFNDEF OPENGL_ES}
- fIsResident := false;
-{$ENDIF}
+ if png_check_sig(@signature, 8) <> 0 then begin
+ // png read struct
+ png := png_create_read_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
+ if png = nil then
+ raise EglBitmapException.Create('LoadPng - couldn''t create read struct.');
- fMipMap := glBitmapDefaultMipmap;
- fFreeDataAfterGenTexture := glBitmapGetDefaultFreeDataAfterGenTexture;
- fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
+ // png info
+ png_info := png_create_info_struct(png);
+ if png_info = nil then begin
+ png_destroy_read_struct(@png, nil, nil);
+ raise EglBitmapException.Create('LoadPng - couldn''t create info struct.');
+ end;
- glBitmapGetDefaultFilter (fFilterMin, fFilterMag);
- glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
-{$IFNDEF OPENGL_ES}
- glBitmapGetDefaultSwizzle (fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
-{$ENDIF}
-end;
+ // set read callback
+ png_set_read_fn(png, aStream, glBitmap_libPNG_read_func);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
+ // read informations
+ png_read_info(png, png_info);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
+ // size
+ TempHeight := png_get_image_height(png, png_info);
+ TempWidth := png_get_image_width(png, png_info);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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);
+ // format
+ case png_get_color_type(png, png_info) of
+ PNG_COLOR_TYPE_GRAY:
+ Format := tfLuminance8ub1;
+ PNG_COLOR_TYPE_GRAY_ALPHA:
+ Format := tfLuminance8Alpha8us1;
+ PNG_COLOR_TYPE_RGB:
+ Format := tfRGB8ub3;
+ PNG_COLOR_TYPE_RGB_ALPHA:
+ Format := tfRGBA8ub4;
+ 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
+ SetData(png_data, Format, TempWidth, TempHeight);
+
+ result := true;
+ except
+ if Assigned(png_data) then
+ FreeMem(png_data);
+ raise;
+ end;
+ end;
finally
- fs.Free;
+ quit_libPNG;
end;
end;
+{$ELSEIF DEFINED(GLB_PNGIMAGE)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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
- if not LoadRAW(aStream) then
- raise EglBitmap.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromFunc(const aSize: TglBitmapSize; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer);
+function TglBitmapData.LoadPNG(const aStream: TStream): Boolean;
var
- tmpData: PByte;
- size: Integer;
+ 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
- size := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(tmpData, size);
- try
- FillChar(tmpData^, size, #$FF);
- SetDataPointer(tmpData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
- except
- if Assigned(tmpData) then
- FreeMem(tmpData);
- raise;
+ result := false;
+
+ StreamPos := aStream.Position;
+ aStream.Read(Header[0], SizeOf(Header));
+ aStream.Position := StreamPos;
+
+ {Test if the header matches}
+ if Header = PngHeader then begin
+ Png := TPNGObject.Create;
+ try
+ Png.LoadFromStream(aStream);
+
+ case Png.Header.ColorType of
+ COLOR_GRAYSCALE:
+ PngFormat := tfLuminance8ub1;
+ COLOR_GRAYSCALEALPHA:
+ PngFormat := tfLuminance8Alpha8us1;
+ COLOR_RGB:
+ PngFormat := tfBGR8ub3;
+ COLOR_RGBALPHA:
+ PngFormat := tfBGRA8ub4;
+ else
+ raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+
+ FormatDesc := TFormatDescriptor.Get(PngFormat);
+ PixSize := Round(FormatDesc.PixelSize);
+ LineSize := FormatDesc.GetSize(Png.Header.Width, 1);
+
+ GetMem(NewImage, LineSize * Integer(Png.Header.Height));
+ try
+ pDest := NewImage;
+
+ case Png.Header.ColorType of
+ COLOR_RGB, COLOR_GRAYSCALE:
+ begin
+ for Row := 0 to Png.Height -1 do begin
+ Move (Png.Scanline[Row]^, pDest^, LineSize);
+ Inc(pDest, LineSize);
+ end;
+ end;
+ COLOR_RGBALPHA, COLOR_GRAYSCALEALPHA:
+ begin
+ PixSize := PixSize -1;
+
+ for Row := 0 to Png.Height -1 do begin
+ pSource := Png.Scanline[Row];
+ pAlpha := pByte(Png.AlphaScanline[Row]);
+
+ for Col := 0 to Png.Width -1 do begin
+ Move (pSource^, pDest^, PixSize);
+ Inc(pSource, PixSize);
+ Inc(pDest, PixSize);
+
+ pDest^ := pAlpha^;
+ inc(pAlpha);
+ Inc(pDest);
+ end;
+ end;
+ end;
+ else
+ raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+
+ SetData(NewImage, PngFormat, Png.Header.Width, Png.Header.Height);
+
+ result := true;
+ except
+ if Assigned(NewImage) then
+ FreeMem(NewImage);
+ raise;
+ end;
+ finally
+ Png.Free;
+ end;
end;
- Convert(Self, aFunc, false, aFormat, aArgs);
end;
+{$IFEND}
+{$ENDIF}
+{$IFDEF GLB_SUPPORT_PNG_WRITE}
+{$IFDEF GLB_LIB_PNG}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar);
-var
- rs: TResourceStream;
+procedure glBitmap_libPNG_write_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
begin
- PrepareResType(aResource, aResType);
- rs := TResourceStream.Create(aInstance, aResource, aResType);
- try
- LoadFromStream(rs);
- finally
- rs.Free;
- end;
+ TStream(png_get_io_ptr(png)).Write(buffer^, size);
end;
+{$ENDIF}
+{$IF DEFINED(GLB_LAZ_PNG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+procedure TglBitmapData.SavePNG(const aStream: TStream);
var
- rs: TResourceStream;
+ png: TPortableNetworkGraphic;
+ intf: TLazIntfImage;
+ raw: TRawImage;
begin
- rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
+ png := TPortableNetworkGraphic.Create;
+ intf := TLazIntfImage.Create(0, 0);
try
- LoadFromStream(rs);
+ if not AssignToLazIntfImage(intf) then
+ raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
+ intf.GetRawImage(raw);
+ png.LoadFromRawImage(raw, false);
+ png.SaveToStream(aStream);
finally
- rs.Free;
+ png.Free;
+ intf.Free;
end;
end;
+{$ELSEIF DEFINED(GLB_LIB_PNG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveToFile(const aFilename: String; const aFileType: TglBitmapFileType);
+procedure TglBitmapData.SavePNG(const aStream: TStream);
var
- fs: TFileStream;
+ png: png_structp;
+ png_info: png_infop;
+ png_rows: array of pByte;
+ LineSize: Integer;
+ ColorType: Integer;
+ Row: Integer;
+ FormatDesc: TFormatDescriptor;
begin
- fs := TFileStream.Create(aFileName, fmCreate);
- try
- fs.Position := 0;
- SaveToStream(fs, aFileType);
- finally
- fs.Free;
- end;
-end;
+ if not (ftPNG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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);
- ftRAW: SaveRAW(aStream);
- end;
-end;
+ if not init_libPNG then
+ raise Exception.Create('unable to initialize libPNG.');
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.Convert(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer): Boolean;
-begin
- result := Convert(Self, aFunc, aCreateTemp, Format, aArgs);
-end;
+ try
+ case Format of
+ tfAlpha8ub1, tfLuminance8ub1:
+ ColorType := PNG_COLOR_TYPE_GRAY;
+ tfLuminance8Alpha8us1:
+ ColorType := PNG_COLOR_TYPE_GRAY_ALPHA;
+ tfBGR8ub3, tfRGB8ub3:
+ ColorType := PNG_COLOR_TYPE_RGB;
+ tfBGRA8ub4, tfRGBA8ub4:
+ ColorType := PNG_COLOR_TYPE_RGBA;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.Convert(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;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ LineSize := FormatDesc.GetSize(Width, 1);
- FuncRec: TglBitmapFunctionRec;
-begin
- Assert(Assigned(Data));
- Assert(Assigned(aSource));
- Assert(Assigned(aSource.Data));
+ // 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;
- 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);
+ // 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.');
- 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);
+ // 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;
- // inkompatible Formats so CreateTemp
- if (SourceFD.BitsPerPixel <> DestFD.BitsPerPixel) then
- aCreateTemp := true;
+ // set read callback
+ png_set_write_fn(png, aStream, glBitmap_libPNG_write_func, nil);
- // Values
- TempHeight := Max(1, aSource.Height);
- TempWidth := Max(1, aSource.Width);
+ // set compression
+ png_set_compression_level(png, 6);
- FuncRec.Sender := Self;
- FuncRec.Args := aArgs;
+ if Format in [tfBGR8ub3, tfBGRA8ub4] then
+ png_set_bgr(png);
- TmpData := nil;
- if aCreateTemp then begin
- GetMem(TmpData, DestFD.GetSize(TempWidth, TempHeight));
- DestData := TmpData;
- end else
- DestData := Data;
+ 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;
- try
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
+{$ELSEIF DEFINED(GLB_PNGIMAGE)}
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.SavePNG(const aStream: TStream);
+var
+ Png: TPNGObject;
- SourceMD := SourceFD.CreateMappingData;
- DestMD := DestFD.CreateMappingData;
+ pSource, pDest: pByte;
+ X, Y, PixSize: Integer;
+ ColorType: Cardinal;
+ Alpha: Boolean;
- FuncRec.Size := aSource.Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
+ pTemp: pByte;
+ Temp: Byte;
+begin
+ if not (ftPNG in FormatGetSupportedFiles (Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
- 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;
+ case Format of
+ tfAlpha8ub1, tfLuminance8ub1: begin
+ ColorType := COLOR_GRAYSCALE;
+ PixSize := 1;
+ Alpha := false;
+ end;
+ tfLuminance8Alpha8us1: begin
+ ColorType := COLOR_GRAYSCALEALPHA;
+ PixSize := 1;
+ Alpha := true;
+ end;
+ tfBGR8ub3, tfRGB8ub3: begin
+ ColorType := COLOR_RGB;
+ PixSize := 3;
+ Alpha := false;
+ end;
+ tfBGRA8ub4, tfRGBA8ub4: begin
+ ColorType := COLOR_RGBALPHA;
+ PixSize := 3;
+ Alpha := true
+ end;
+ else
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ 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;
+ 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;
- result := true;
- finally
- SourceFD.FreeMappingData(SourceMD);
- DestFD.FreeMappingData(DestMD);
+ // convert RGB line to BGR
+ if Format in [tfRGB8ub3, tfRGBA8ub4] 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;
- except
- if aCreateTemp and Assigned(TmpData) then
- FreeMem(TmpData);
- raise;
end;
+
+ // Save to Stream
+ Png.CompressionLevel := 6;
+ Png.SaveToStream(aStream);
+ finally
+ FreeAndNil(Png);
end;
end;
+{$IFEND}
+{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.ConvertTo(const aFormat: TglBitmapFormat): Boolean;
-var
- SourceFD, DestFD: TFormatDescriptor;
- SourcePD, DestPD: TglBitmapPixelData;
- ShiftData: TShiftData;
+//JPEG////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+{$IFDEF GLB_LIB_JPEG}
+type
+ glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
+ glBitmap_libJPEG_source_mgr = record
+ pub: jpeg_source_mgr;
- function DataIsIdentical: Boolean;
- begin
- result := SourceFD.MaskMatch(DestFD.Mask);
+ SrcStream: TStream;
+ SrcBuffer: array [1..4096] of byte;
end;
- 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;
+ glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
+ glBitmap_libJPEG_dest_mgr = record
+ pub: jpeg_destination_mgr;
- 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;
+ DestStream: TStream;
+ DestBuffer: array [1..4096] of byte;
end;
+procedure glBitmap_libJPEG_error_exit(cinfo: j_common_ptr); cdecl;
begin
- if (aFormat <> fFormat) and (aFormat <> tfEmpty) then begin
- SourceFD := TFormatDescriptor.Get(Format);
- DestFD := TFormatDescriptor.Get(aFormat);
-
- if DataIsIdentical then begin
- result := true;
- Format := aFormat;
- exit;
- end;
+ //DUMMY
+end;
- SourceFD.PreparePixel(SourcePD);
- DestFD.PreparePixel (DestPD);
- if CanCopyDirect then
- result := Convert(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 := Convert(Self, glBitmapConvertShiftRGBAFunc, false, aFormat, @ShiftData);
- end else
- result := Convert(Self, glBitmapConvertCalculateRGBAFunc, false, aFormat);
- end else
- result := true;
+procedure glBitmap_libJPEG_output_message(cinfo: j_common_ptr); cdecl;
+begin
+ //DUMMY
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;
+procedure glBitmap_libJPEG_init_source(cinfo: j_decompress_ptr); cdecl;
begin
- result := false;
-
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(Format);
+ //DUMMY
+end;
- 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;
+procedure glBitmap_libJPEG_term_source(cinfo: j_decompress_ptr); cdecl;
+begin
+ //DUMMY
+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;
+procedure glBitmap_libJPEG_init_destination(cinfo: j_compress_ptr); cdecl;
+begin
+ //DUMMY
end;
+
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
+function glBitmap_libJPEG_fill_input_buffer(cinfo: j_decompress_ptr): boolean; cdecl;
var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapFormat;
- fd: TFormatDescriptor;
- Mask: TglBitmapMask;
+ src: glBitmap_libJPEG_source_mgr_ptr;
+ bytes: integer;
+begin
+ src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface^.pixels;
- Inc(result, Row * RowSize);
- end;
+ 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;
-begin
- result := false;
- if (Assigned(aSurface)) then begin
- with aSurface^.format^ do begin
- Mask.r := RMask;
- Mask.g := GMask;
- Mask.b := BMask;
- Mask.a := AMask;
- IntFormat := TFormatDescriptor.GetFromMask(Mask).Format;
- if (IntFormat = tfEmpty) then
- raise EglBitmap.Create('AssignFromSurface - Invalid Pixelformat.');
- end;
+ src^.pub.next_input_byte := @(src^.SrcBuffer[1]);
+ src^.pub.bytes_in_buffer := bytes;
- fd := TFormatDescriptor.Get(IntFormat);
- TempWidth := aSurface^.w;
- TempHeight := aSurface^.h;
- RowSize := fd.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;
+ result := true;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
+procedure glBitmap_libJPEG_skip_input_data(cinfo: j_decompress_ptr; num_bytes: Longint); cdecl;
var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface.pixels;
- Inc(result, Row * Width);
- end;
-
+ src: glBitmap_libJPEG_source_mgr_ptr;
begin
- result := false;
- if Assigned(Data) then begin
- if Format in [tfAlpha8ub1, tfLuminance8Alpha8ub2, tfBGRA8ub4, tfRGBA8ub4] then begin
- aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
-
- AlphaInterleave := 0;
- case Format of
- tfLuminance8Alpha8ub2:
- AlphaInterleave := 1;
- tfBGRA8ub4, tfRGBA8ub4:
- AlphaInterleave := 3;
- end;
+ src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
- pSource := Data;
- for Row := 0 to Height -1 do begin
- pDest := GetRowPointer(Row);
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
- result := true;
+ if num_bytes > 0 then begin
+ // wanted byte isn't in buffer so set stream position and read buffer
+ if num_bytes > src^.pub.bytes_in_buffer then begin
+ src^.SrcStream.Position := src^.SrcStream.Position + num_bytes - src^.pub.bytes_in_buffer;
+ src^.pub.fill_input_buffer(cinfo);
+ end else begin
+ // wanted byte is in buffer so only skip
+ inc(src^.pub.next_input_byte, num_bytes);
+ dec(src^.pub.bytes_in_buffer, num_bytes);
end;
end;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
+function glBitmap_libJPEG_empty_output_buffer(cinfo: j_compress_ptr): boolean; cdecl;
var
- bmp: TglBitmap2D;
+ dest: glBitmap_libJPEG_dest_mgr_ptr;
begin
- bmp := TglBitmap2D.Create;
- try
- bmp.AssignFromSurface(aSurface);
- result := AddAlphaFromGlBitmap(bmp, aFunc, aArgs);
- finally
- bmp.Free;
+ dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
+
+ if dest^.pub.free_in_buffer < Cardinal(Length(dest^.DestBuffer)) then begin
+ // write complete buffer
+ dest^.DestStream.Write(dest^.DestBuffer[1], SizeOf(dest^.DestBuffer));
+
+ // reset buffer
+ dest^.pub.next_output_byte := @dest^.DestBuffer[1];
+ dest^.pub.free_in_buffer := Length(dest^.DestBuffer);
end;
+
+ result := true;
end;
-{$ENDIF}
-{$IFDEF GLB_DELPHI}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function CreateGrayPalette: HPALETTE;
+procedure glBitmap_libJPEG_term_destination(cinfo: j_compress_ptr); cdecl;
var
Idx: Integer;
- Pal: PLogPalette;
+ dest: glBitmap_libJPEG_dest_mgr_ptr;
begin
- GetMem(Pal, SizeOf(TLogPalette) + (SizeOf(TPaletteEntry) * 256));
+ dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
- Pal.palVersion := $300;
- Pal.palNumEntries := 256;
+ for Idx := Low(dest^.DestBuffer) to High(dest^.DestBuffer) do begin
+ // check for endblock
+ if (Idx < High(dest^.DestBuffer)) and (dest^.DestBuffer[Idx] = $FF) and (dest^.DestBuffer[Idx +1] = JPEG_EOI) then begin
+ // write endblock
+ dest^.DestStream.Write(dest^.DestBuffer[Idx], 2);
- for Idx := 0 to Pal.palNumEntries - 1 do begin
- Pal.palPalEntry[Idx].peRed := Idx;
- Pal.palPalEntry[Idx].peGreen := Idx;
- Pal.palPalEntry[Idx].peBlue := Idx;
- Pal.palPalEntry[Idx].peFlags := 0;
+ // leave
+ break;
+ end else
+ dest^.DestStream.Write(dest^.DestBuffer[Idx], 1);
end;
- Result := CreatePalette(Pal^);
- FreeMem(Pal);
end;
+{$ENDIF}
+{$IFDEF GLB_SUPPORT_JPEG_READ}
+{$IF DEFINED(GLB_LAZ_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignToBitmap(const aBitmap: TBitmap): Boolean;
+function TglBitmapData.LoadJPEG(const aStream: TStream): Boolean;
+const
+ MAGIC_LEN = 2;
+ JPEG_MAGIC: String[MAGIC_LEN] = #$FF#$D8;
var
- Row: Integer;
- pSource, pData: PByte;
+ intf: TLazIntfImage;
+ reader: TFPReaderJPEG;
+ StreamPos: Int64;
+ magic: String[MAGIC_LEN];
begin
- result := false;
- if Assigned(Data) then begin
- if Assigned(aBitmap) then begin
- aBitmap.Width := Width;
- aBitmap.Height := Height;
+ result := true;
+ StreamPos := aStream.Position;
- case Format of
- tfAlpha8ub1, tfLuminance8ub1: begin
- aBitmap.PixelFormat := pf8bit;
- aBitmap.Palette := CreateGrayPalette;
- end;
- tfRGB5A1us1:
- aBitmap.PixelFormat := pf15bit;
- tfR5G6B5us1:
- aBitmap.PixelFormat := pf16bit;
- tfRGB8ub3, tfBGR8ub3:
- aBitmap.PixelFormat := pf24bit;
- tfRGBA8ub4, tfBGRA8ub4:
- aBitmap.PixelFormat := pf32bit;
- else
- raise EglBitmap.Create('AssignToBitmap - Invalid Pixelformat.');
- end;
+ SetLength(magic, MAGIC_LEN);
+ aStream.Read(magic[1], MAGIC_LEN);
+ aStream.Position := StreamPos;
+ if (magic <> JPEG_MAGIC) then begin
+ result := false;
+ exit;
+ 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 [tfRGB8ub3, tfRGBA8ub4]) then // swap RGB(A) to BGR(A)
- SwapRGB(pData, FileWidth, Format = tfRGBA8ub4);
- end;
- result := true;
- 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;
+{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromBitmap(const aBitmap: TBitmap): Boolean;
+function TglBitmapData.LoadJPEG(const aStream: TStream): Boolean;
var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapFormat;
+ Surface: PSDL_Surface;
+ RWops: PSDL_RWops;
begin
result := false;
- if (Assigned(aBitmap)) then begin
- case aBitmap.PixelFormat of
- pf8bit:
- IntFormat := tfLuminance8ub1;
- pf15bit:
- IntFormat := tfRGB5A1us1;
- pf16bit:
- IntFormat := tfR5G6B5us1;
- pf24bit:
- IntFormat := tfBGR8ub3;
- pf32bit:
- IntFormat := tfBGRA8ub4;
- else
- raise EglBitmap.Create('AssignFromBitmap - Invalid Pixelformat.');
- end;
-
- TempWidth := aBitmap.Width;
- TempHeight := aBitmap.Height;
- RowSize := TFormatDescriptor.Get(IntFormat).GetSize(TempWidth, 1);
- GetMem(pData, TempHeight * RowSize);
- try
- pTempData := pData;
- for Row := 0 to TempHeight -1 do begin
- pSource := aBitmap.Scanline[Row];
- if (Assigned(pSource)) then begin
- Move(pSource^, pTempData^, RowSize);
- Inc(pTempData, RowSize);
- end;
+ RWops := glBitmapCreateRWops(aStream);
+ try
+ if IMG_isJPG(RWops) > 0 then begin
+ Surface := IMG_LoadJPG_RW(RWops);
+ try
+ AssignFromSurface(Surface);
+ result := true;
+ finally
+ SDL_FreeSurface(Surface);
end;
- SetDataPointer(pData, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
- result := true;
- except
- if Assigned(pData) then
- FreeMem(pData);
- raise;
end;
+ finally
+ SDL_FreeRW(RWops);
end;
end;
+{$ELSEIF DEFINED(GLB_LIB_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
+function TglBitmapData.LoadJPEG(const aStream: TStream): Boolean;
var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
+ 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 Assigned(Data) then begin
- if (Format in [tfAlpha8ub1, tfLuminance8Alpha8ub2, tfRGBA8ub4, tfBGRA8ub4]) then begin
- if Assigned(aBitmap) then begin
- aBitmap.PixelFormat := pf8bit;
- aBitmap.Palette := CreateGrayPalette;
- aBitmap.Width := Width;
- aBitmap.Height := Height;
+ if not init_libJPEG then
+ raise Exception.Create('LoadJPG - unable to initialize libJPEG.');
- case Format of
- tfLuminance8Alpha8ub2:
- AlphaInterleave := 1;
- tfRGBA8ub4, tfBGRA8ub4:
- AlphaInterleave := 3;
- else
- AlphaInterleave := 0;
- end;
+ 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;
- // Copy Data
- pSource := Data;
+ // 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);
- 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;
+ // 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 := tfLuminance8ub1;
end;
+ else
+ jpeg.out_color_space := JCS_RGB;
+ IntFormat := tfRGB8ub3;
+ 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);
+
+ SetData(pImage, IntFormat, TempWidth, TempHeight);
+
result := true;
+ except
+ if Assigned(pImage) then
+ FreeMem(pImage);
+ raise;
end;
end;
+ finally
+ quit_libJPEG;
end;
end;
+{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+function TglBitmapData.LoadJPEG(const aStream: TStream): Boolean;
var
- tex: TglBitmap2D;
+ bmp: TBitmap;
+ jpg: TJPEGImage;
+ StreamPos: Int64;
+ Temp: array[0..1]of Byte;
begin
- tex := TglBitmap2D.Create;
- try
- tex.AssignFromBitmap(ABitmap);
- result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
- finally
- tex.Free;
+ 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_LAZARUS}
+{$IFDEF GLB_SUPPORT_JPEG_WRITE}
+{$IF DEFINED(GLB_LAZ_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+procedure TglBitmapData.SaveJPEG(const aStream: TStream);
var
- rid: TRawImageDescription;
- FormatDesc: TFormatDescriptor;
+ jpeg: TJPEGImage;
+ intf: TLazIntfImage;
+ raw: TRawImage;
begin
- if not Assigned(Data) then
- raise EglBitmap.Create('no pixel data assigned. load data before save');
-
- 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 FormatDesc.IsGrayscale then
- rid.Format := ricfGray
- else
- rid.Format := ricfRGBA;
-
- rid.Width := Width;
- rid.Height := Height;
- rid.Depth := FormatDesc.BitsPerPixel;
- rid.BitOrder := riboBitsInOrder;
- rid.ByteOrder := riboLSBFirst;
- rid.LineOrder := riloTopToBottom;
- rid.LineEnd := rileTight;
- rid.BitsPerPixel := FormatDesc.BitsPerPixel;
- 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;
-
- if not Assigned(aImage.PixelData) then
- raise EglBitmap.Create('error while creating LazIntfImage');
- Move(Data^, aImage.PixelData^, FormatDesc.GetSize(Dimension));
-
- result := true;
+ 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)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
+procedure TglBitmapData.SaveJPEG(const aStream: TStream);
var
- f: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- ImageData: PByte;
- ImageSize: Integer;
- CanCopy: Boolean;
- Mask: TglBitmapRec4ul;
+ jpeg: jpeg_compress_struct;
+ jpeg_err: jpeg_error_mgr;
+ Row: Integer;
+ pTemp, pTemp2: pByte;
- procedure CopyConvert;
+ procedure CopyRow(pDest, pSource: pByte);
var
- bfFormat: TbmpBitfieldFormat;
- pSourceLine, pDestLine: PByte;
- pSourceMD, pDestMD: Pointer;
- Shift, Prec: TglBitmapRec4ub;
- x, y: Integer;
- pixel: TglBitmapPixelData;
+ X: Integer;
begin
- bfFormat := TbmpBitfieldFormat.Create;
- with aImage.DataDescription do begin
- Prec.r := RedPrec;
- Prec.g := GreenPrec;
- Prec.b := BluePrec;
- Prec.a := AlphaPrec;
- Shift.r := RedShift;
- Shift.g := GreenShift;
- Shift.b := BlueShift;
- Shift.a := AlphaShift;
- bfFormat.SetCustomValues(BitsPerPixel, Prec, Shift);
- 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.BytesPerPixel * 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;
+ 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
- result := false;
- if not Assigned(aImage) then
- exit;
-
- with aImage.DataDescription do begin
- Mask.r := (QWord(1 shl RedPrec )-1) shl RedShift;
- Mask.g := (QWord(1 shl GreenPrec)-1) shl GreenShift;
- Mask.b := (QWord(1 shl BluePrec )-1) shl BlueShift;
- Mask.a := (QWord(1 shl AlphaPrec)-1) shl AlphaShift;
- end;
- FormatDesc := TFormatDescriptor.GetFromMask(Mask);
- f := FormatDesc.Format;
- if (f = tfEmpty) then
- exit;
+ if not (ftJPEG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
- CanCopy :=
- (FormatDesc.BitsPerPixel = aImage.DataDescription.Depth) and
- (aImage.DataDescription.BitsPerPixel = aImage.DataDescription.Depth);
+ if not init_libJPEG then
+ raise Exception.Create('SaveJPG - unable to initialize libJPEG.');
- ImageSize := FormatDesc.GetSize(aImage.Width, aImage.Height);
- ImageData := GetMem(ImageSize);
try
- if CanCopy then
- Move(aImage.PixelData^, ImageData^, ImageSize)
+ 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
+ tfAlpha8ub1, tfLuminance8ub1: begin
+ jpeg.input_components := 1;
+ jpeg.in_color_space := JCS_GRAYSCALE;
+ end;
+ tfRGB8ub3, tfBGR8ub3: 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 = tfBGR8ub3 then
+ GetMem(pTemp2, fRowSize)
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;
+ pTemp2 := pTemp;
- result := true;
+ try
+ for Row := 0 to jpeg.image_height -1 do begin
+ // prepare row
+ if Format = tfBGR8ub3 then
+ CopyRow(pTemp2, pTemp)
+ else
+ pTemp2 := pTemp;
+
+ // write row
+ jpeg_write_scanlines(@jpeg, @pTemp2, 1);
+ inc(pTemp, fRowSize);
+ end;
+ finally
+ // free memory
+ if Format = tfBGR8ub3 then
+ FreeMem(pTemp2);
+ end;
+ jpeg_finish_compress(@jpeg);
+ jpeg_destroy_compress(@jpeg);
+ finally
+ quit_libJPEG;
+ end;
end;
+{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+procedure TglBitmapData.SaveJPEG(const aStream: TStream);
var
- rid: TRawImageDescription;
- FormatDesc: TFormatDescriptor;
- Pixel: TglBitmapPixelData;
- x, y: Integer;
- srcMD: Pointer;
- src, dst: PByte;
+ Bmp: TBitmap;
+ Jpg: TJPEGImage;
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;
+ if not (ftJPEG in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
- srcMD := FormatDesc.CreateMappingData;
+ Bmp := TBitmap.Create;
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;
+ Jpg := TJPEGImage.Create;
+ try
+ AssignToBitmap(Bmp);
+ if (Format in [tfAlpha8ub1, tfLuminance8ub1]) then begin
+ Jpg.Grayscale := true;
+ Jpg.PixelFormat := jf8Bit;
end;
+ Jpg.Assign(Bmp);
+ Jpg.SaveToStream(aStream);
+ finally
+ FreeAndNil(Jpg);
+ end;
finally
- FormatDesc.FreeMappingData(srcMD);
+ FreeAndNil(Bmp);
end;
- result := true;
end;
+{$IFEND}
+{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
+//RAW/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+type
+ RawHeader = packed record
+ Magic: String[5];
+ Version: Byte;
+ Width: Integer;
+ Height: Integer;
+ DataSize: Integer;
+ BitsPerPixel: Integer;
+ Precision: TglBitmapRec4ub;
+ Shift: TglBitmapRec4ub;
end;
-end;
-{$ENDIF}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+function TglBitmapData.LoadRAW(const aStream: TStream): Boolean;
var
- rs: TResourceStream;
+ header: RawHeader;
+ StartPos: Int64;
+ fd: TFormatDescriptor;
+ buf: PByte;
begin
- PrepareResType(aResource, aResType);
- rs := TResourceStream.Create(aInstance, aResource, aResType);
- try
- result := AddAlphaFromStream(rs, aFunc, aArgs);
- finally
- rs.Free;
+ result := false;
+ StartPos := aStream.Position;
+ aStream.Read(header{%H-}, SizeOf(header));
+ if (header.Magic <> 'glBMP') then begin
+ aStream.Position := StartPos;
+ exit;
end;
+
+ fd := TFormatDescriptor.GetFromPrecShift(header.Precision, header.Shift, header.BitsPerPixel);
+ if (fd.Format = tfEmpty) then
+ raise EglBitmapUnsupportedFormat.Create('no supported format found');
+
+ buf := GetMemory(header.DataSize);
+ aStream.Read(buf^, header.DataSize);
+ SetData(buf, fd.Format, header.Width, header.Height);
+
+ result := true;
end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+procedure TglBitmapData.SaveRAW(const aStream: TStream);
var
- rs: TResourceStream;
+ header: RawHeader;
+ fd: TFormatDescriptor;
begin
- rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
- try
- result := AddAlphaFromStream(rs, aFunc, aArgs);
- finally
- rs.Free;
- end;
+ fd := TFormatDescriptor.Get(Format);
+ header.Magic := 'glBMP';
+ header.Version := 1;
+ header.Width := Width;
+ header.Height := Height;
+ header.DataSize := fd.GetSize(fDimension);
+ header.BitsPerPixel := fd.BitsPerPixel;
+ header.Precision := fd.Precision;
+ header.Shift := fd.Shift;
+ aStream.Write(header, SizeOf(header));
+ aStream.Write(Data^, header.DataSize);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
-begin
- if TFormatDescriptor.Get(Format).IsCompressed then
- raise EglBitmapUnsupportedFormat.Create(Format);
- result := Convert(Self, aFunc, false, TFormatDescriptor.Get(Format).WithAlpha, aArgs);
-end;
-
+//BMP/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
+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;
-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;
+ 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;
-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;
+function TglBitmapData.LoadBMP(const aStream: TStream): Boolean;
- FuncRec: TglBitmapFunctionRec;
-begin
- result := false;
+ //////////////////////////////////////////////////////////////////////////////////////////////////
+ function ReadInfo(out aInfo: TBMPInfo; out aMask: TglBitmapRec4ul): TglBitmapFormat;
+ var
+ tmp, i: Cardinal;
+ begin
+ result := tfEmpty;
+ aStream.Read(aInfo{%H-}, SizeOf(aInfo));
+ FillChar(aMask{%H-}, SizeOf(aMask), 0);
- Assert(Assigned(Data));
- Assert(Assigned(aBitmap));
- Assert(Assigned(aBitmap.Data));
+ //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
+ for i := 0 to 2 do begin
+ aStream.Read(tmp{%H-}, SizeOf(tmp));
+ aMask.arr[i] := tmp;
+ end;
+ end else
+ raise EglBitmap.Create('Bitfields are only supported for 16bit and 32bit formats');
+ end;
+ end;
- if ((aBitmap.Width = Width) and (aBitmap.Height = Height)) then begin
- result := ConvertTo(TFormatDescriptor.Get(Format).WithAlpha);
+ //get suitable format
+ case aInfo.biBitCount of
+ 8: result := tfLuminance8ub1;
+ 16: result := tfX1RGB5us1;
+ 24: result := tfBGR8ub3;
+ 32: result := tfXRGB8ui1;
+ end;
+ end;
- SourceFD := TFormatDescriptor.Get(aBitmap.Format);
- DestFD := TFormatDescriptor.Get(Format);
+ function ReadColorTable(var aFormat: TglBitmapFormat; const aInfo: TBMPInfo): TbmpColorTableFormat;
+ var
+ i, c: Integer;
+ fd: TFormatDescriptor;
+ ColorTable: TbmpColorTable;
+ begin
+ result := nil;
+ if (aInfo.biBitCount >= 16) then
+ exit;
+ aFormat := tfLuminance8ub1;
+ 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 := tfRGB8ub3;
+ end;
- if not Assigned(aFunc) then begin
- aFunc := glBitmapAlphaFunc;
- FuncRec.Args := {%H-}Pointer(SourceFD.HasAlpha);
- end else
- FuncRec.Args := aArgs;
+ fd := TFormatDescriptor.Get(aFormat);
+ result := TbmpColorTableFormat.Create;
+ result.ColorTable := ColorTable;
+ result.SetCustomValues(aFormat, aInfo.biBitCount, fd.Precision, fd.Shift);
+ end;
- // Values
- TempHeight := aBitmap.FileHeight;
- TempWidth := aBitmap.FileWidth;
+ //////////////////////////////////////////////////////////////////////////////////////////////////
+ function CheckBitfields(var aFormat: TglBitmapFormat; const aMask: TglBitmapRec4ul; const aInfo: TBMPInfo): TbmpBitfieldFormat;
+ var
+ fd: TFormatDescriptor;
+ begin
+ result := nil;
+ if (aMask.r <> 0) or (aMask.g <> 0) or (aMask.b <> 0) or (aMask.a <> 0) then begin
- FuncRec.Sender := Self;
- FuncRec.Size := Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
+ // find suitable format ...
+ fd := TFormatDescriptor.GetFromMask(aMask);
+ if (fd.Format <> tfEmpty) then begin
+ aFormat := fd.Format;
+ exit;
+ end;
- DestData := Data;
- DestData2 := Data;
- SourceData := aBitmap.Data;
+ // or create custom bitfield format
+ result := TbmpBitfieldFormat.Create;
+ result.SetCustomValues(aInfo.biBitCount, aMask);
+ end;
+ end;
- // Mapping
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
+var
+ //simple types
+ StartPos: Int64;
+ ImageSize, rbLineSize, wbLineSize, Padding, i: Integer;
+ PaddingBuff: Cardinal;
+ LineBuf, ImageData, TmpData: PByte;
+ SourceMD, DestMD: Pointer;
+ BmpFormat: TglBitmapFormat;
- 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);
+ //records
+ Mask: TglBitmapRec4ul;
+ 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;
-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.GetAlpha(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;
+ result := false;
+ BmpFormat := tfEmpty;
+ SpecialFormat := nil;
+ LineBuf := nil;
+ SourceMD := nil;
+ DestMD := nil;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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.GetAlpha(Format).PreparePixel(PixelData);
- with PixelData do begin
- values[0] := aRed;
- values[1] := aGreen;
- values[2] := aBlue;
+ // Header
+ StartPos := aStream.Position;
+ aStream.Read(Header{%H-}, SizeOf(Header));
- 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;
+ 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;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValue(const aAlpha: Byte): Boolean;
-begin
- result := AddAlphaFromValueFloat(aAlpha / $FF);
-end;
+ if (BmpFormat <> tfEmpty) then begin
+ FormatDesc := TFormatDescriptor.Get(BmpFormat);
+ rbLineSize := Round(Info.biWidth * Info.biBitCount / 8); //ReadBuffer LineSize
+ wbLineSize := Trunc(Info.biWidth * FormatDesc.BytesPerPixel);
+ Padding := (((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3) - rbLineSize;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetAlpha(Format).PreparePixel(PixelData);
- result := AddAlphaFromValueFloat(aAlpha / PixelData.Range.a);
-end;
+ //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;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetAlpha(Format).PreparePixel(PixelData);
- with PixelData do
- Data.a := Min(Range.a, Max(0, Round(Range.a * aAlpha)));
- result := AddAlphaFromFunc(glBitmapValueAlphaFunc, @PixelData.Data.a);
+ //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;
+ SetData(ImageData, BmpFormat, Info.biWidth, abs(Info.biHeight));
+ 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;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.RemoveAlpha: Boolean;
+procedure TglBitmapData.SaveBMP(const aStream: TStream);
var
+ Header: TBMPHeader;
+ Info: TBMPInfo;
+ Converter: TFormatDescriptor;
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;
+ SourceFD, DestFD: Pointer;
+ pData, srcData, dstData, ConvertBuffer: pByte;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
+ Pixel: TglBitmapPixelData;
+ ImageSize, wbLineSize, rbLineSize, Padding, LineIdx, PixelIdx: Integer;
+ RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
- // 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;
+ PaddingBuff: Cardinal;
- result := Temp;
- except
- FreeAndNil(Temp);
- raise;
+ function GetLineWidth : Integer;
+ begin
+ result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Invert(const aUseRGB: Boolean; const aUseAlpha: Boolean);
-begin
- if aUseRGB or aUseAlpha then
- Convert(glBitmapInvertFunc, false, {%H-}Pointer(
- ((Byte(aUseAlpha) and 1) shl 1) or
- (Byte(aUseRGB) and 1) ));
-end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FreeData;
-var
- TempPtr: PByte;
begin
- TempPtr := nil;
- SetDataPointer(TempPtr, tfEmpty); //be careful, Data could be freed by this method
-end;
+ if not (ftBMP in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
-{$IFNDEF OPENGL_ES}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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;
-{$ENDIF}
+ Converter := nil;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ ImageSize := FormatDesc.GetSize(Dimension);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FillWithColor(const aRed, aGreen, aBlue: Byte;
- const aAlpha: Byte);
-begin
- FillWithColorFloat(aRed/$FF, aGreen/$FF, aBlue/$FF, aAlpha/$FF);
-end;
+ 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);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal);
-var
- PixelData: TglBitmapPixelData;
-begin
- TFormatDescriptor.GetAlpha(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;
- Convert(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);
+ 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;
- if (MipMap = mmNone) {$IFNDEF OPENGL_ES}or (Target = GL_TEXTURE_RECTANGLE){$ENDIF} then begin
- case fFilterMin of
- GL_NEAREST, GL_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ try
+ case Format of
+ tfAlpha4ub1, tfAlpha8ub1, tfLuminance4ub1, tfLuminance8ub1, tfR3G3B2ub1:
+ begin
+ Info.biBitCount := 8;
+ Header.bfSize := Header.bfSize + 256 * SizeOf(Cardinal);
+ Header.bfOffBits := Header.bfOffBits + 256 * SizeOf(Cardinal); //256 ColorTable entries
+ Converter := TbmpColorTableFormat.Create;
+ with (Converter as TbmpColorTableFormat) do begin
+ SetCustomValues(fFormat, 8, FormatDesc.Precision, FormatDesc.Shift);
+ CreateColorTable;
+ end;
end;
- end else
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- end;
-end;
-
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetWrap(const S: GLenum; const T: GLenum; const R: GLenum);
-
- procedure CheckAndSetWrap(const aValue: Cardinal; var aTarget: Cardinal);
- begin
- case aValue of
-{$IFNDEF OPENGL_ES}
- GL_CLAMP:
- aTarget := GL_CLAMP;
-{$ENDIF}
-
- GL_REPEAT:
- aTarget := GL_REPEAT;
- GL_CLAMP_TO_EDGE: begin
-{$IFNDEF OPENGL_ES}
- if not GL_VERSION_1_2 and not GL_EXT_texture_edge_clamp then
- aTarget := GL_CLAMP
- else
-{$ENDIF}
- aTarget := GL_CLAMP_TO_EDGE;
+ tfLuminance4Alpha4ub2, tfLuminance6Alpha2ub2, tfLuminance8Alpha8ub2,
+ tfRGBX4us1, tfXRGB4us1, tfRGB5X1us1, tfX1RGB5us1, tfR5G6B5us1, tfRGB5A1us1, tfA1RGB5us1, tfRGBA4us1, tfARGB4us1,
+ tfBGRX4us1, tfXBGR4us1, tfBGR5X1us1, tfX1BGR5us1, tfB5G6R5us1, tfBGR5A1us1, tfA1BGR5us1, tfBGRA4us1, tfABGR4us1:
+ begin
+ Info.biBitCount := 16;
+ Info.biCompression := BMP_COMP_BITFIELDS;
end;
-{$IFNDEF OPENGL_ES}
- 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;
+ tfBGR8ub3, tfRGB8ub3:
+ begin
+ Info.biBitCount := 24;
+ if (Format = tfRGB8ub3) then
+ Converter := TfdBGR8ub3.Create; //use BGR8 Format Descriptor to Swap RGB Values
end;
-{$ENDIF}
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_2_0)}
- GL_MIRRORED_REPEAT: begin
- {$IFNDEF OPENGL_ES}
- if GL_VERSION_1_4 or GL_ARB_texture_mirrored_repeat or GL_IBM_texture_mirrored_repeat then
- {$ELSE}
- if GL_VERSION_2_0 then
- {$ENDIF}
- aTarget := GL_MIRRORED_REPEAT
- else
- raise EglBitmap.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
+ tfRGBX8ui1, tfXRGB8ui1, tfRGB10X2ui1, tfX2RGB10ui1, tfRGBA8ui1, tfARGB8ui1, tfRGBA8ub4, tfRGB10A2ui1, tfA2RGB10ui1,
+ tfBGRX8ui1, tfXBGR8ui1, tfBGR10X2ui1, tfX2BGR10ui1, tfBGRA8ui1, tfABGR8ui1, tfBGRA8ub4, tfBGR10A2ui1, tfA2BGR10ui1:
+ begin
+ Info.biBitCount := 32;
+ Info.biCompression := BMP_COMP_BITFIELDS;
end;
-{$IFEND}
else
- raise EglBitmap.Create('SetWrap - Unknow Texturewrap');
+ raise EglBitmapUnsupportedFormat.Create(Format);
end;
- end;
+ Info.biXPelsPerMeter := 2835;
+ Info.biYPelsPerMeter := 2835;
-begin
- CheckAndSetWrap(S, fWrapS);
- CheckAndSetWrap(T, fWrapT);
- CheckAndSetWrap(R, fWrapR);
+ // prepare bitmasks
+ if Info.biCompression = BMP_COMP_BITFIELDS then begin
+ Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
+ Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
- if (ID > 0) then begin
- Bind(false);
- glTexParameteri(Target, GL_TEXTURE_WRAP_S, fWrapS);
- glTexParameteri(Target, GL_TEXTURE_WRAP_T, fWrapT);
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
- {$IFDEF OPENGL_ES} if GL_VERSION_3_0 then{$ENDIF}
- glTexParameteri(Target, GL_TEXTURE_WRAP_R, fWrapR);
-{$IFEND}
- end;
-end;
+ RedMask := FormatDesc.Mask.r;
+ GreenMask := FormatDesc.Mask.g;
+ BlueMask := FormatDesc.Mask.b;
+ AlphaMask := FormatDesc.Mask.a;
+ end;
-{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SetSwizzle(const r, g, b, a: GLenum);
+ // headers
+ aStream.Write(Header, SizeOf(Header));
+ aStream.Write(Info, SizeOf(Info));
- procedure CheckAndSetValue(const aValue: GLenum; const aIndex: Integer);
- begin
- if (aValue = GL_ZERO) or (aValue = GL_ONE) or (aValue = GL_ALPHA) or
- (aValue = GL_RED) or (aValue = GL_GREEN) or (aValue = GL_BLUE) then
- fSwizzle[aIndex] := aValue
- else
- raise EglBitmap.Create('SetSwizzle - Unknow Swizle Value');
- end;
+ // colortable
+ if Assigned(Converter) and (Converter is TbmpColorTableFormat) then
+ with (Converter as TbmpColorTableFormat) do
+ aStream.Write(ColorTable[0].b,
+ SizeOf(TbmpColorTableEnty) * Length(ColorTable));
-begin
-{$IFNDEF OPENGL_ES}
- 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');
-{$ELSE}
- if not GL_VERSION_3_0 then
- raise EglBitmapNotSupported.Create('texture swizzle is not supported');
-{$ENDIF}
- CheckAndSetValue(r, 0);
- CheckAndSetValue(g, 1);
- CheckAndSetValue(b, 2);
- CheckAndSetValue(a, 3);
+ // 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;
- if (ID > 0) then begin
- Bind(false);
-{$IFNDEF OPENGL_ES}
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_RGBA, PGLint(@fSwizzle[0]));
-{$ELSE}
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_R, PGLint(@fSwizzle[0]));
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_G, PGLint(@fSwizzle[1]));
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_B, PGLint(@fSwizzle[2]));
- glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_A, PGLint(@fSwizzle[3]));
-{$ENDIF}
- end;
-end;
-{$IFEND}
+ // image data
+ rbLineSize := Round(Info.biWidth * FormatDesc.BytesPerPixel);
+ wbLineSize := Round(Info.biWidth * Info.biBitCount / 8);
+ Padding := GetLineWidth - wbLineSize;
+ PaddingBuff := 0;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Bind(const aEnableTextureUnit: Boolean);
-begin
- if aEnableTextureUnit then
- glEnable(Target);
- if (ID > 0) then
- glBindTexture(Target, ID);
-end;
+ pData := Data;
+ inc(pData, (Height-1) * rbLineSize);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.Unbind(const aDisableTextureUnit: Boolean);
-begin
- if aDisableTextureUnit then
- glDisable(Target);
- glBindTexture(Target, 0);
-end;
+ // 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;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create;
-begin
- if (ClassType = TglBitmap) then
- raise EglBitmap.Create('Don''t create TglBitmap directly. Use one of the deviated classes (TglBitmap2D) instead.');
- inherited Create;
- fFormat := glBitmapGetDefaultFormat;
- fFreeDataOnDestroy := true;
+ 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;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aFileName: String);
-begin
- Create;
- LoadFromFile(aFileName);
-end;
-
+//TGA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aStream: TStream);
-begin
- Create;
- LoadFromStream(aStream);
-end;
+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;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; aData: PByte);
+function TglBitmapData.LoadTGA(const aStream: TStream): Boolean;
var
- ImageSize: Integer;
-begin
- Create;
- if not Assigned(aData) then begin
- ImageSize := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(aData, ImageSize);
+ 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 = $4000;
+
+ ////////////////////////////////////////////////////////////////////////////////////////
+ procedure ReadUncompressed;
+ var
+ i, j: Integer;
+ buf, tmp1, tmp2: System.PByte;
+ begin
+ buf := nil;
+ if (Counter.X.dir < 0) then
+ GetMem(buf, LineSize);
try
- FillChar(aData^, ImageSize, #$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;
+ 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 else begin
- SetDataPointer(aData, aFormat, aSize.X, aSize.Y); //be careful, Data could be freed by this method
end;
-end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer);
-begin
- Create;
- LoadFromFunc(aSize, aFunc, aFormat, aArgs);
-end;
+ ////////////////////////////////////////////////////////////////////////////////////////
+ procedure ReadCompressed;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar);
-begin
- Create;
- LoadFromResource(aInstance, aResource, aResType);
-end;
+ /////////////////////////////////////////////////////////////////
+ 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;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-constructor TglBitmap.Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
-begin
- Create;
- LoadFromResourceID(aInstance, aResourceID, aResType);
-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;
-{$IFDEF GLB_SUPPORT_PNG_READ}
-{$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;
+ //load cache from file
+ CacheSize := Min(CACHE_SIZE, aStream.Size - aStream.Position);
+ aStream.Read(Cache^, CacheSize);
+ CachePos := 0;
- SetLength(magic, MAGIC_LEN);
- aStream.Read(magic[1], MAGIC_LEN);
- aStream.Position := StreamPos;
- if (magic <> PNG_MAGIC) then begin
- result := false;
- exit;
- end;
+ //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;
- 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;
+ 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 $7F) + 1;
+ inc(TotalPixelsRead, PixelsToRead);
+
+ if PixelRepeat then
+ CachedRead(buf[0], PixelSize);
+ while (PixelsToRead > 0) do begin
+ CheckLine;
+ PixelCount := Min(Header.Width - LinePixelsRead, PixelsToRead); //max read to EOL or EOF
+ while (PixelCount > 0) do begin
+ if not PixelRepeat then
+ CachedRead(buf[0], PixelSize);
+ PixelToBuffer(@buf[0], TmpData);
+ inc(LinePixelsRead);
+ dec(PixelsToRead);
+ dec(PixelCount);
+ end;
+ end;
+ until (TotalPixelsRead >= TotalPixelsToRead);
+ finally
+ FreeMem(Cache);
+ end;
end;
- finally
- reader.Free;
- intf.Free;
+
+ function IsGrayFormat: Boolean;
+ begin
+ result := Header.ImageType in [TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_GRAY];
end;
-end;
-{$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);
+
+ // 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 := tfLuminance8ub1;
+ 8: tgaFormat := tfAlpha8ub1;
+ end;
+
+ 16: if IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfLuminance16us1;
+ 8: tgaFormat := tfLuminance8Alpha8ub2;
+ end else case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfX1RGB5us1;
+ 1: tgaFormat := tfA1RGB5us1;
+ 4: tgaFormat := tfARGB4us1;
+ end;
+
+ 24: if not IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfBGR8ub3;
+ end;
+
+ 32: if IsGrayFormat then case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfDepth32ui1;
+ end else case (Header.ImageDesc and $F) of
+ 0: tgaFormat := tfX2RGB10ui1;
+ 2: tgaFormat := tfA2RGB10ui1;
+ 8: tgaFormat := tfARGB8ui1;
+ end;
+ end;
+
+ if (tgaFormat = tfEmpty) then
+ raise EglBitmap.Create('LoadTga - unsupported format');
+
+ FormatDesc := TFormatDescriptor.Get(tgaFormat);
+ PixelSize := FormatDesc.GetSize(1, 1);
+ LineSize := FormatDesc.GetSize(Header.Width, 1);
+
+ GetMem(ImageData, LineSize * Header.Height);
try
- AssignFromSurface(Surface);
+ //column direction
+ if ((Header.ImageDesc and (1 shl 4)) > 0) then begin
+ Counter.X.low := Header.Height-1;;
+ Counter.X.high := 0;
+ Counter.X.dir := -1;
+ end else begin
+ Counter.X.low := 0;
+ Counter.X.high := Header.Height-1;
+ Counter.X.dir := 1;
+ end;
+
+ // Row direction
+ if ((Header.ImageDesc and (1 shl 5)) > 0) then begin
+ Counter.Y.low := 0;
+ Counter.Y.high := Header.Height-1;
+ Counter.Y.dir := 1;
+ end else begin
+ Counter.Y.low := Header.Height-1;;
+ Counter.Y.high := 0;
+ Counter.Y.dir := -1;
+ end;
+
+ // Read Image
+ case Header.ImageType of
+ TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
+ ReadUncompressed;
+ TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
+ ReadCompressed;
+ end;
+
+ SetData(ImageData, tgaFormat, Header.Width, Header.Height);
result := true;
- finally
- SDL_FreeSurface(Surface);
+ except
+ if Assigned(ImageData) then
+ FreeMem(ImageData);
+ raise;
end;
+ finally
+ aStream.Position := StartPosition;
end;
- finally
- SDL_FreeRW(RWops);
- end;
-end;
-
-{$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
+ else aStream.Position := StartPosition;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
+procedure TglBitmapData.SaveTGA(const aStream: TStream);
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;
+ Header: TTGAHeader;
+ Size: Integer;
+ FormatDesc: TFormatDescriptor;
begin
- result := false;
+ if not (ftTGA in FormatGetSupportedFiles(Format)) then
+ raise EglBitmapUnsupportedFormat.Create(Format);
- if not init_libPNG then
- raise Exception.Create('LoadPNG - unable to initialize libPNG.');
+ //prepare header
+ FormatDesc := TFormatDescriptor.Get(Format);
+ FillChar(Header{%H-}, SizeOf(Header), 0);
+ Header.ImageDesc := CountSetBits(FormatDesc.Range.a) and $F;
+ Header.Bpp := FormatDesc.BitsPerPixel;
+ Header.Width := Width;
+ Header.Height := Height;
+ Header.ImageDesc := Header.ImageDesc or $20; //flip y
+ if FormatDesc.IsGrayscale or (not FormatDesc.IsGrayscale and not FormatDesc.HasRed and FormatDesc.HasAlpha) then
+ Header.ImageType := TGA_UNCOMPRESSED_GRAY
+ else
+ Header.ImageType := TGA_UNCOMPRESSED_RGB;
+ aStream.Write(Header, SizeOf(Header));
- try
- // signature
- StreamPos := aStream.Position;
- aStream.Read(signature{%H-}, 8);
- aStream.Position := StreamPos;
+ // write Data
+ Size := FormatDesc.GetSize(Dimension);
+ aStream.Write(Data^, Size);
+end;
- 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.');
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//DDS/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+const
+ DDS_MAGIC: Cardinal = $20534444;
- // 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;
+ // DDS_header.dwFlags
+ DDSD_CAPS = $00000001;
+ DDSD_HEIGHT = $00000002;
+ DDSD_WIDTH = $00000004;
+ DDSD_PIXELFORMAT = $00001000;
- // set read callback
- png_set_read_fn(png, aStream, glBitmap_libPNG_read_func);
+ // DDS_header.sPixelFormat.dwFlags
+ DDPF_ALPHAPIXELS = $00000001;
+ DDPF_ALPHA = $00000002;
+ DDPF_FOURCC = $00000004;
+ DDPF_RGB = $00000040;
+ DDPF_LUMINANCE = $00020000;
- // read informations
- png_read_info(png, png_info);
+ // DDS_header.sCaps.dwCaps1
+ DDSCAPS_TEXTURE = $00001000;
- // size
- TempHeight := png_get_image_height(png, png_info);
- TempWidth := png_get_image_width(png, png_info);
+ // DDS_header.sCaps.dwCaps2
+ DDSCAPS2_CUBEMAP = $00000200;
- // format
- case png_get_color_type(png, png_info) of
- PNG_COLOR_TYPE_GRAY:
- Format := tfLuminance8ub1;
- PNG_COLOR_TYPE_GRAY_ALPHA:
- Format := tfLuminance8Alpha8us1;
- PNG_COLOR_TYPE_RGB:
- Format := tfRGB8ub3;
- PNG_COLOR_TYPE_RGB_ALPHA:
- Format := tfRGBA8ub4;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
+ D3DFMT_DXT1 = $31545844;
+ D3DFMT_DXT3 = $33545844;
+ D3DFMT_DXT5 = $35545844;
- // cut upper 8 bit from 16 bit formats
- if png_get_bit_depth(png, png_info) > 8 then
- png_set_strip_16(png);
+type
+ TDDSPixelFormat = packed record
+ dwSize: Cardinal;
+ dwFlags: Cardinal;
+ dwFourCC: Cardinal;
+ dwRGBBitCount: Cardinal;
+ dwRBitMask: Cardinal;
+ dwGBitMask: Cardinal;
+ dwBBitMask: Cardinal;
+ dwABitMask: Cardinal;
+ end;
- // expand bitdepth smaller than 8
- if png_get_bit_depth(png, png_info) < 8 then
- png_set_expand(png);
+ TDDSCaps = packed record
+ dwCaps1: Cardinal;
+ dwCaps2: Cardinal;
+ dwDDSX: Cardinal;
+ dwReserved: Cardinal;
+ end;
- // 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;
+ 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;
- // read complete image into scanlines
- png_read_image(png, @png_rows[0]);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.LoadDDS(const aStream: TStream): Boolean;
+var
+ Header: TDDSHeader;
+ Converter: TbmpBitfieldFormat;
- // read end
- png_read_end(png, png_info);
+ function GetDDSFormat: TglBitmapFormat;
+ var
+ fd: TFormatDescriptor;
+ i: Integer;
+ Mask: TglBitmapRec4ul;
+ Range: TglBitmapRec4ui;
+ 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 ((dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE or DDPF_ALPHA)) > 0) then begin
+ // prepare masks
+ if ((dwFlags and DDPF_LUMINANCE) = 0) then begin
+ Mask.r := dwRBitMask;
+ Mask.g := dwGBitMask;
+ Mask.b := dwBBitMask;
+ end else begin
+ Mask.r := dwRBitMask;
+ Mask.g := dwRBitMask;
+ Mask.b := dwRBitMask;
+ end;
+ if (dwFlags and DDPF_ALPHAPIXELS > 0) then
+ Mask.a := dwABitMask
+ else
+ Mask.a := 0;;
- // destroy read struct
- png_destroy_read_struct(@png, @png_info, nil);
+ //find matching format
+ fd := TFormatDescriptor.GetFromMask(Mask, dwRGBBitCount);
+ result := fd.Format;
+ if (result <> tfEmpty) then
+ exit;
- SetLength(png_rows, 0);
+ //find format with same Range
+ for i := 0 to 3 do
+ Range.arr[i] := (2 shl CountSetBits(Mask.arr[i])) - 1;
+ 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;
- // set new data
- SetDataPointer(png_data, Format, TempWidth, TempHeight); //be careful, Data could be freed by this method
+ //no format with same range found -> use default
+ if (result = tfEmpty) then begin
+ if (dwABitMask > 0) then
+ result := tfRGBA8ui1
+ else
+ result := tfRGB8ub3;
+ end;
- result := true;
- except
- if Assigned(png_data) then
- FreeMem(png_data);
- raise;
+ Converter := TbmpBitfieldFormat.Create;
+ Converter.SetCustomValues(dwRGBBitCount, glBitmapRec4ul(dwRBitMask, dwGBitMask, dwBBitMask, dwABitMask));
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;
+ x, y, LineSize, RowSize, Magic: Cardinal;
+ NewImage, TmpData, RowData, SrcData: System.PByte;
+ SourceMD, DestMD: Pointer;
+ Pixel: TglBitmapPixelData;
+ ddsFormat: TglBitmapFormat;
FormatDesc: TFormatDescriptor;
-const
- PngHeader: String[8] = #137#80#78#71#13#10#26#10;
-
begin
- result := false;
-
+ result := false;
+ Converter := nil;
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 := tfLuminance8ub1;
- COLOR_GRAYSCALEALPHA:
- PngFormat := tfLuminance8Alpha8us1;
- COLOR_RGB:
- PngFormat := tfBGR8ub3;
- COLOR_RGBALPHA:
- PngFormat := tfBGRA8ub4;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
- FormatDesc := TFormatDescriptor.Get(PngFormat);
- PixSize := Round(FormatDesc.PixelSize);
- LineSize := FormatDesc.GetSize(Png.Header.Width, 1);
+ // Magic
+ aStream.Read(Magic{%H-}, sizeof(Magic));
+ if (Magic <> DDS_MAGIC) then begin
+ aStream.Position := StreamPos;
+ exit;
+ end;
- GetMem(NewImage, LineSize * Integer(Png.Header.Height));
- try
- pDest := NewImage;
+ //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;
- 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;
+ if ((Header.Caps.dwCaps1 and DDSCAPS2_CUBEMAP) > 0) then
+ raise EglBitmap.Create('LoadDDS - CubeMaps are not supported');
- for Row := 0 to Png.Height -1 do begin
- pSource := Png.Scanline[Row];
- pAlpha := pByte(Png.AlphaScanline[Row]);
+ ddsFormat := GetDDSFormat;
+ try
+ if (ddsFormat = tfEmpty) then
+ raise EglBitmap.Create('LoadDDS - unsupported Pixelformat found.');
- for Col := 0 to Png.Width -1 do begin
- Move (pSource^, pDest^, PixSize);
- Inc(pSource, PixSize);
- Inc(pDest, PixSize);
+ FormatDesc := TFormatDescriptor.Get(ddsFormat);
+ LineSize := Trunc(Header.dwWidth * FormatDesc.BytesPerPixel);
+ GetMem(NewImage, Header.dwHeight * LineSize);
+ try
+ TmpData := NewImage;
- pDest^ := pAlpha^;
- inc(pAlpha);
- Inc(pDest);
- end;
- end;
+ //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;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
+ end;
+ finally
+ Converter.FreeMappingData(SourceMD);
+ FormatDesc.FreeMappingData(DestMD);
+ FreeMem(RowData);
end;
+ end else
- 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;
-{$ENDIF}
+ // Compressed
+ if ((Header.PixelFormat.dwFlags and DDPF_FOURCC) > 0) then begin
+ RowSize := Header.dwPitchOrLinearSize div Header.dwWidth;
+ for Y := 0 to Header.dwHeight-1 do begin
+ aStream.Read(TmpData^, RowSize);
+ Inc(TmpData, LineSize);
+ end;
+ end else
-{$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);
+ // 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.');
+
+ SetData(NewImage, ddsFormat, Header.dwWidth, Header.dwHeight);
+ result := true;
+ except
+ if Assigned(NewImage) then
+ FreeMem(NewImage);
+ raise;
+ end;
finally
- png.Free;
- intf.Free;
+ FreeAndNil(Converter);
end;
end;
-{$ELSEIF DEFINED(GLB_LIB_PNG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SavePNG(const aStream: TStream);
+procedure TglBitmapData.SaveDDS(const aStream: TStream);
var
- png: png_structp;
- png_info: png_infop;
- png_rows: array of pByte;
- LineSize: Integer;
- ColorType: Integer;
- Row: Integer;
+ Header: TDDSHeader;
FormatDesc: TFormatDescriptor;
begin
- if not (ftPNG in FormatGetSupportedFiles(Format)) then
+ if not (ftDDS in FormatGetSupportedFiles(Format)) then
raise EglBitmapUnsupportedFormat.Create(Format);
- if not init_libPNG then
- raise Exception.Create('unable to initialize libPNG.');
-
- try
- case Format of
- tfAlpha8ub1, tfLuminance8ub1:
- ColorType := PNG_COLOR_TYPE_GRAY;
- tfLuminance8Alpha8us1:
- ColorType := PNG_COLOR_TYPE_GRAY_ALPHA;
- tfBGR8ub3, tfRGB8ub3:
- ColorType := PNG_COLOR_TYPE_RGB;
- tfBGRA8ub4, tfRGBA8ub4:
- ColorType := PNG_COLOR_TYPE_RGBA;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
-
- FormatDesc := TFormatDescriptor.Get(Format);
- LineSize := FormatDesc.GetSize(Width, 1);
+ FormatDesc := TFormatDescriptor.Get(Format);
- // 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;
+ // Generell
+ FillChar(Header{%H-}, SizeOf(Header), 0);
+ Header.dwSize := SizeOf(Header);
+ Header.dwFlags := DDSD_WIDTH or DDSD_HEIGHT or DDSD_CAPS or DDSD_PIXELFORMAT;
- // 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.');
+ Header.dwWidth := Max(1, Width);
+ Header.dwHeight := Max(1, Height);
- // 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;
+ // Caps
+ Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
- // set read callback
- png_set_write_fn(png, aStream, glBitmap_libPNG_write_func, nil);
+ // 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 not FormatDesc.HasColor and FormatDesc.HasAlpha then begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHA;
+ Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
+ Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
+ end else if FormatDesc.IsGrayscale then begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_LUMINANCE;
+ Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
+ Header.PixelFormat.dwRBitMask := FormatDesc.Mask.r;
+ Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
+ end else begin
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_RGB;
+ Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
+ Header.PixelFormat.dwRBitMask := FormatDesc.Mask.r;
+ Header.PixelFormat.dwGBitMask := FormatDesc.Mask.g;
+ Header.PixelFormat.dwBBitMask := FormatDesc.Mask.b;
+ Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
+ end;
- // set compression
- png_set_compression_level(png, 6);
+ if (FormatDesc.HasAlpha) then
+ Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
- if Format in [tfBGR8ub3, tfBGRA8ub4] then
- png_set_bgr(png);
+ aStream.Write(DDS_MAGIC, sizeof(DDS_MAGIC));
+ aStream.Write(Header, SizeOf(Header));
+ aStream.Write(Data^, FormatDesc.GetSize(Dimension));
+end;
- 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);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.FlipHorz: Boolean;
+var
+ fd: TglBitmapFormatDescriptor;
+ Col, RowSize, PixelSize: Integer;
+ pTempDest, pDest, pSource: PByte;
+begin
+ result := false;
+ fd := FormatDescriptor;
+ PixelSize := Ceil(fd.BytesPerPixel);
+ RowSize := fd.GetSize(Width, 1);
+ if Assigned(Data) and not fd.IsCompressed then begin
+ pSource := Data;
+ GetMem(pDest, RowSize);
+ try
+ pTempDest := pDest;
+ Inc(pTempDest, RowSize);
+ for Col := 0 to Width-1 do begin
+ dec(pTempDest, PixelSize); //dec before, because ptr is behind last byte of data
+ Move(pSource^, pTempDest^, PixelSize);
+ Inc(pSource, PixelSize);
+ end;
+ SetData(pDest, Format, Width);
+ result := true;
+ except
+ if Assigned(pDest) then
+ FreeMem(pDest);
+ raise;
end;
- finally
- quit_libPNG;
end;
end;
-{$ELSEIF DEFINED(GLB_PNGIMAGE)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SavePNG(const aStream: TStream);
+function TglBitmapData.FlipVert: Boolean;
var
- Png: TPNGObject;
-
- pSource, pDest: pByte;
- X, Y, PixSize: Integer;
- ColorType: Cardinal;
- Alpha: Boolean;
-
- pTemp: pByte;
- Temp: Byte;
+ fd: TglBitmapFormatDescriptor;
+ Row, RowSize, PixelSize: Integer;
+ TempDestData, DestData, SourceData: PByte;
begin
- if not (ftPNG in FormatGetSupportedFiles (Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
-
- case Format of
- tfAlpha8ub1, tfLuminance8ub1: begin
- ColorType := COLOR_GRAYSCALE;
- PixSize := 1;
- Alpha := false;
- end;
- tfLuminance8Alpha8us1: begin
- ColorType := COLOR_GRAYSCALEALPHA;
- PixSize := 1;
- Alpha := true;
- end;
- tfBGR8ub3, tfRGB8ub3: begin
- ColorType := COLOR_RGB;
- PixSize := 3;
- Alpha := false;
- end;
- tfBGRA8ub4, tfRGBA8ub4: begin
- ColorType := COLOR_RGBALPHA;
- PixSize := 3;
- Alpha := true
+ result := false;
+ fd := FormatDescriptor;
+ PixelSize := Ceil(fd.BytesPerPixel);
+ RowSize := fd.GetSize(Width, 1);
+ if Assigned(Data) then begin
+ SourceData := Data;
+ GetMem(DestData, Height * RowSize);
+ try
+ TempDestData := DestData;
+ Inc(TempDestData, Width * (Height -1) * PixelSize);
+ for Row := 0 to Height -1 do begin
+ Move(SourceData^, TempDestData^, RowSize);
+ Dec(TempDestData, RowSize);
+ Inc(SourceData, RowSize);
+ end;
+ SetData(DestData, Format, Width, Height);
+ result := true;
+ except
+ if Assigned(DestData) then
+ FreeMem(DestData);
+ raise;
end;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
end;
+end;
- Png := TPNGObject.CreateBlank(ColorType, 8, Width, Height);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.LoadFromFile(const aFilename: String);
+var
+ fs: TFileStream;
+begin
+ if not FileExists(aFilename) then
+ raise EglBitmap.Create('file does not exist: ' + aFilename);
+ fs := TFileStream.Create(aFilename, fmOpenRead);
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 [tfRGB8ub3, tfRGBA8ub4] 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);
+ fs.Position := 0;
+ LoadFromStream(fs);
+ fFilename := aFilename;
finally
- FreeAndNil(Png);
+ fs.Free;
end;
end;
-{$IFEND}
-{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//JPEG////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-{$IFDEF GLB_LIB_JPEG}
-type
- glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
- glBitmap_libJPEG_source_mgr = record
- pub: jpeg_source_mgr;
-
- SrcStream: TStream;
- SrcBuffer: array [1..4096] of byte;
- end;
-
- glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
- glBitmap_libJPEG_dest_mgr = record
- pub: jpeg_destination_mgr;
+procedure TglBitmapData.LoadFromStream(const aStream: TStream);
+begin
+ {$IFDEF GLB_SUPPORT_PNG_READ}
+ if not LoadPNG(aStream) then
+ {$ENDIF}
+ {$IFDEF GLB_SUPPORT_JPEG_READ}
+ if not LoadJPEG(aStream) then
+ {$ENDIF}
+ if not LoadDDS(aStream) then
+ if not LoadTGA(aStream) then
+ if not LoadBMP(aStream) then
+ if not LoadRAW(aStream) then
+ raise EglBitmap.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
+end;
- DestStream: TStream;
- DestBuffer: array [1..4096] of byte;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.LoadFromFunc(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat;
+ const aFunc: TglBitmapFunction; const aArgs: Pointer);
+var
+ tmpData: PByte;
+ size: Integer;
+begin
+ size := TFormatDescriptor.Get(aFormat).GetSize(aSize);
+ GetMem(tmpData, size);
+ try
+ FillChar(tmpData^, size, #$FF);
+ SetData(tmpData, aFormat, aSize.X, aSize.Y);
+ except
+ if Assigned(tmpData) then
+ FreeMem(tmpData);
+ raise;
end;
+ Convert(Self, aFunc, false, aFormat, aArgs);
+end;
-procedure glBitmap_libJPEG_error_exit(cinfo: j_common_ptr); cdecl;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.LoadFromResource(const aInstance: Cardinal; aResource: String; aResType: PChar);
+var
+ rs: TResourceStream;
begin
- //DUMMY
+ PrepareResType(aResource, aResType);
+ rs := TResourceStream.Create(aInstance, aResource, aResType);
+ try
+ LoadFromStream(rs);
+ finally
+ rs.Free;
+ end;
end;
-
-procedure glBitmap_libJPEG_output_message(cinfo: j_common_ptr); cdecl;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.LoadFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+var
+ rs: TResourceStream;
begin
- //DUMMY
+ rs := TResourceStream.CreateFromID(aInstance, aResourceID, aResType);
+ try
+ LoadFromStream(rs);
+ finally
+ rs.Free;
+ end;
end;
-
-procedure glBitmap_libJPEG_init_source(cinfo: j_decompress_ptr); cdecl;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.SaveToFile(const aFilename: String; const aFileType: TglBitmapFileType);
+var
+ fs: TFileStream;
begin
- //DUMMY
+ fs := TFileStream.Create(aFileName, fmCreate);
+ try
+ fs.Position := 0;
+ SaveToStream(fs, aFileType);
+ finally
+ fs.Free;
+ end;
end;
-procedure glBitmap_libJPEG_term_source(cinfo: j_decompress_ptr); cdecl;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType);
begin
- //DUMMY
+ 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);
+ ftRAW: SaveRAW(aStream);
+ end;
end;
-
-procedure glBitmap_libJPEG_init_destination(cinfo: j_compress_ptr); cdecl;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.Convert(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer): Boolean;
begin
- //DUMMY
+ result := Convert(Self, aFunc, aCreateTemp, Format, aArgs);
end;
-
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function glBitmap_libJPEG_fill_input_buffer(cinfo: j_decompress_ptr): boolean; cdecl;
+function TglBitmapData.Convert(const aSource: TglBitmapData; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
+ const aFormat: TglBitmapFormat; const aArgs: Pointer): Boolean;
var
- src: glBitmap_libJPEG_source_mgr_ptr;
- bytes: integer;
+ DestData, TmpData, SourceData: pByte;
+ TempHeight, TempWidth: Integer;
+ SourceFD, DestFD: TFormatDescriptor;
+ SourceMD, DestMD: Pointer;
+
+ FuncRec: TglBitmapFunctionRec;
begin
- src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
+ Assert(Assigned(Data));
+ Assert(Assigned(aSource));
+ Assert(Assigned(aSource.Data));
- 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;
+ 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);
- src^.pub.next_input_byte := @(src^.SrcBuffer[1]);
- src^.pub.bytes_in_buffer := bytes;
+ 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);
- result := true;
-end;
+ // inkompatible Formats so CreateTemp
+ if (SourceFD.BitsPerPixel <> DestFD.BitsPerPixel) then
+ aCreateTemp := true;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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);
+ // Values
+ TempHeight := Max(1, aSource.Height);
+ TempWidth := Max(1, aSource.Width);
- 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;
+ FuncRec.Sender := Self;
+ FuncRec.Args := aArgs;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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);
+ TmpData := nil;
+ if aCreateTemp then begin
+ GetMem(TmpData, DestFD.GetSize(TempWidth, TempHeight));
+ DestData := TmpData;
+ end else
+ DestData := Data;
- if dest^.pub.free_in_buffer < Cardinal(Length(dest^.DestBuffer)) then begin
- // write complete buffer
- dest^.DestStream.Write(dest^.DestBuffer[1], SizeOf(dest^.DestBuffer));
+ try
+ SourceFD.PreparePixel(FuncRec.Source);
+ DestFD.PreparePixel (FuncRec.Dest);
- // reset buffer
- dest^.pub.next_output_byte := @dest^.DestBuffer[1];
- dest^.pub.free_in_buffer := Length(dest^.DestBuffer);
- end;
+ SourceMD := SourceFD.CreateMappingData;
+ DestMD := DestFD.CreateMappingData;
- result := true;
-end;
+ FuncRec.Size := aSource.Dimension;
+ FuncRec.Position.Fields := FuncRec.Size.Fields;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-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);
+ 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;
- for Idx := Low(dest^.DestBuffer) to High(dest^.DestBuffer) do begin
- // check for endblock
- if (Idx < High(dest^.DestBuffer)) and (dest^.DestBuffer[Idx] = $FF) and (dest^.DestBuffer[Idx +1] = JPEG_EOI) then begin
- // write endblock
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 2);
+ // Updating Image or InternalFormat
+ if aCreateTemp then
+ SetData(TmpData, aFormat, aSource.Width, aSource.Height)
+ else if (aFormat <> fFormat) then
+ Format := aFormat;
- // leave
- break;
- end else
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 1);
+ result := true;
+ finally
+ SourceFD.FreeMappingData(SourceMD);
+ DestFD.FreeMappingData(DestMD);
+ end;
+ except
+ if aCreateTemp and Assigned(TmpData) then
+ FreeMem(TmpData);
+ raise;
+ end;
end;
end;
-{$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;
+function TglBitmapData.ConvertTo(const aFormat: TglBitmapFormat): Boolean;
var
- intf: TLazIntfImage;
- reader: TFPReaderJPEG;
- StreamPos: Int64;
- magic: String[MAGIC_LEN];
-begin
- result := true;
- StreamPos := aStream.Position;
+ SourceFD, DestFD: TFormatDescriptor;
+ SourcePD, DestPD: TglBitmapPixelData;
+ ShiftData: TShiftData;
- SetLength(magic, MAGIC_LEN);
- aStream.Read(magic[1], MAGIC_LEN);
- aStream.Position := StreamPos;
- if (magic <> JPEG_MAGIC) then begin
- result := false;
- exit;
+ function DataIsIdentical: Boolean;
+ begin
+ result := SourceFD.MaskMatch(DestFD.Mask);
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;
+ 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;
- finally
- reader.Free;
- intf.Free;
+
+ 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;
-end;
-{$ELSEIF DEFINED(GLB_SDL_IMAGE)}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
-var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
begin
- result := false;
+ if (aFormat <> fFormat) and (aFormat <> tfEmpty) then begin
+ SourceFD := TFormatDescriptor.Get(Format);
+ DestFD := TFormatDescriptor.Get(aFormat);
- RWops := glBitmapCreateRWops(aStream);
- try
- if IMG_isJPG(RWops) > 0 then begin
- Surface := IMG_LoadJPG_RW(RWops);
- try
- AssignFromSurface(Surface);
- result := true;
- finally
- SDL_FreeSurface(Surface);
- end;
+ if DataIsIdentical then begin
+ result := true;
+ Format := aFormat;
+ exit;
end;
- finally
- SDL_FreeRW(RWops);
- end;
+
+ SourceFD.PreparePixel(SourcePD);
+ DestFD.PreparePixel (DestPD);
+
+ if CanCopyDirect then
+ result := Convert(Self, glBitmapConvertCopyFunc, false, aFormat)
+ else if CanShift then begin
+ ShiftData.r := GetShift(SourcePD.Range.r, DestPD.Range.r);
+ ShiftData.g := GetShift(SourcePD.Range.g, DestPD.Range.g);
+ ShiftData.b := GetShift(SourcePD.Range.b, DestPD.Range.b);
+ ShiftData.a := GetShift(SourcePD.Range.a, DestPD.Range.a);
+ result := Convert(Self, glBitmapConvertShiftRGBAFunc, false, aFormat, @ShiftData);
+ end else
+ result := Convert(Self, glBitmapConvertCalculateRGBAFunc, false, aFormat);
+ end else
+ result := true;
end;
-{$ELSEIF DEFINED(GLB_LIB_JPEG)}
+{$IFDEF GLB_SDL}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+function TglBitmapData.AssignToSurface(out aSurface: PSDL_Surface): 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;
+ Row, RowSize: Integer;
+ SourceData, TmpData: PByte;
+ TempDepth: Integer;
+ FormatDesc: TFormatDescriptor;
- pTemp: pByte;
- Row: Integer;
+ function GetRowPointer(Row: Integer): pByte;
+ begin
+ result := aSurface.pixels;
+ Inc(result, Row * RowSize);
+ end;
- 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;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(Format);
- // set global decoding state
- jpeg.global_state := DSTATE_START;
+ 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;
- // read header of jpeg
- jpeg_read_header(@jpeg, false);
+ aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, TempDepth,
+ FormatDesc.RedMask, FormatDesc.GreenMask, FormatDesc.BlueMask, FormatDesc.AlphaMask);
+ SourceData := Data;
+ RowSize := FormatDesc.GetSize(FileWidth, 1);
- // setting output parameter
- case jpeg.jpeg_color_space of
- JCS_GRAYSCALE:
- begin
- jpeg.out_color_space := JCS_GRAYSCALE;
- IntFormat := tfLuminance8ub1;
- end;
- else
- jpeg.out_color_space := JCS_RGB;
- IntFormat := tfRGB8ub3;
+ 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;
- // reading image
- jpeg_start_decompress(@jpeg);
-
- TempHeight := jpeg.output_height;
- TempWidth := jpeg.output_width;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
+var
+ pSource, pData, pTempData: PByte;
+ Row, RowSize, TempWidth, TempHeight: Integer;
+ IntFormat: TglBitmapFormat;
+ fd: TFormatDescriptor;
+ Mask: TglBitmapMask;
- FormatDesc := TFormatDescriptor.Get(IntFormat);
+ function GetRowPointer(Row: Integer): pByte;
+ begin
+ result := aSurface^.pixels;
+ Inc(result, Row * RowSize);
+ end;
- // creating new image
- GetMem(pImage, FormatDesc.GetSize(TempWidth, TempHeight));
- try
- pTemp := pImage;
+begin
+ result := false;
+ if (Assigned(aSurface)) then begin
+ with aSurface^.format^ do begin
+ Mask.r := RMask;
+ Mask.g := GMask;
+ Mask.b := BMask;
+ Mask.a := AMask;
+ IntFormat := TFormatDescriptor.GetFromMask(Mask).Format;
+ if (IntFormat = tfEmpty) then
+ raise EglBitmap.Create('AssignFromSurface - Invalid Pixelformat.');
+ end;
- for Row := 0 to TempHeight -1 do begin
- jpeg_read_scanlines(@jpeg, @pTemp, 1);
- Inc(pTemp, FormatDesc.GetSize(TempWidth, 1));
+ fd := TFormatDescriptor.Get(IntFormat);
+ TempWidth := aSurface^.w;
+ TempHeight := aSurface^.h;
+ RowSize := fd.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;
-
- // 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;
+ SetData(pData, IntFormat, TempWidth, TempHeight);
+ result := true;
+ except
+ if Assigned(pData) then
+ FreeMem(pData);
+ raise;
end;
- finally
- quit_libJPEG;
end;
end;
-{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
+function TglBitmapData.AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
var
- bmp: TBitmap;
- jpg: TJPEGImage;
- StreamPos: Int64;
- Temp: array[0..1]of Byte;
+ 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 [tfAlpha8ub1, tfLuminance8Alpha8ub2, tfBGRA8ub4, tfRGBA8ub4] then begin
+ aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
- // reading first two bytes to test file and set cursor back to begin
- StreamPos := aStream.Position;
- aStream.Read(Temp[0], 2);
- aStream.Position := StreamPos;
+ AlphaInterleave := 0;
+ case Format of
+ tfLuminance8Alpha8ub2:
+ AlphaInterleave := 1;
+ tfBGRA8ub4, tfRGBA8ub4:
+ AlphaInterleave := 3;
+ end;
- // if Bitmap then read file.
- if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
- bmp := TBitmap.Create;
- try
- jpg := TJPEGImage.Create;
- try
- jpg.LoadFromStream(aStream);
- bmp.Assign(jpg);
- result := AssignFromBitmap(bmp);
- finally
- jpg.Free;
+ pSource := Data;
+ for Row := 0 to Height -1 do begin
+ pDest := GetRowPointer(Row);
+ if Assigned(pDest) then begin
+ for Col := 0 to Width -1 do begin
+ Inc(pSource, AlphaInterleave);
+ pDest^ := pSource^;
+ Inc(pDest);
+ Inc(pSource);
+ end;
+ end;
end;
- finally
- bmp.Free;
+ result := true;
end;
end;
end;
-{$IFEND}
-{$ENDIF}
-{$IFDEF GLB_SUPPORT_JPEG_WRITE}
-{$IF DEFINED(GLB_LAZ_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
+function TglBitmapData.AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
var
- jpeg: TJPEGImage;
- intf: TLazIntfImage;
- raw: TRawImage;
+ bmp: TglBitmap2D;
begin
- jpeg := TJPEGImage.Create;
- intf := TLazIntfImage.Create(0, 0);
+ bmp := TglBitmap2D.Create;
try
- if not AssignToLazIntfImage(intf) then
- raise EglBitmap.Create('unable to create LazIntfImage from glBitmap');
- intf.GetRawImage(raw);
- jpeg.LoadFromRawImage(raw, false);
- jpeg.SaveToStream(aStream);
+ bmp.AssignFromSurface(aSurface);
+ result := AddAlphaFromGlBitmap(bmp, aFunc, aArgs);
finally
- intf.Free;
- jpeg.Free;
+ bmp.Free;
end;
end;
+{$ENDIF}
-{$ELSEIF DEFINED(GLB_LIB_JPEG)}
+{$IFDEF GLB_DELPHI}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
+function CreateGrayPalette: HPALETTE;
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;
-
+ Idx: Integer;
+ Pal: PLogPalette;
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
- tfAlpha8ub1, tfLuminance8ub1: begin
- jpeg.input_components := 1;
- jpeg.in_color_space := JCS_GRAYSCALE;
- end;
- tfRGB8ub3, tfBGR8ub3: 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 = tfBGR8ub3 then
- GetMem(pTemp2, fRowSize)
- else
- pTemp2 := pTemp;
+ GetMem(Pal, SizeOf(TLogPalette) + (SizeOf(TPaletteEntry) * 256));
- try
- for Row := 0 to jpeg.image_height -1 do begin
- // prepare row
- if Format = tfBGR8ub3 then
- CopyRow(pTemp2, pTemp)
- else
- pTemp2 := pTemp;
+ Pal.palVersion := $300;
+ Pal.palNumEntries := 256;
- // write row
- jpeg_write_scanlines(@jpeg, @pTemp2, 1);
- inc(pTemp, fRowSize);
- end;
- finally
- // free memory
- if Format = tfBGR8ub3 then
- FreeMem(pTemp2);
- end;
- jpeg_finish_compress(@jpeg);
- jpeg_destroy_compress(@jpeg);
- finally
- quit_libJPEG;
+ for Idx := 0 to Pal.palNumEntries - 1 do begin
+ Pal.palPalEntry[Idx].peRed := Idx;
+ Pal.palPalEntry[Idx].peGreen := Idx;
+ Pal.palPalEntry[Idx].peBlue := Idx;
+ Pal.palPalEntry[Idx].peFlags := 0;
end;
+ Result := CreatePalette(Pal^);
+ FreeMem(Pal);
end;
-{$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveJPEG(const aStream: TStream);
+function TglBitmapData.AssignToBitmap(const aBitmap: TBitmap): Boolean;
var
- Bmp: TBitmap;
- Jpg: TJPEGImage;
+ Row, RowSize: Integer;
+ pSource, pData: PByte;
begin
- if not (ftJPEG in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
+ result := false;
+ if Assigned(Data) then begin
+ if Assigned(aBitmap) then begin
+ aBitmap.Width := Width;
+ aBitmap.Height := Height;
- Bmp := TBitmap.Create;
- try
- Jpg := TJPEGImage.Create;
- try
- AssignToBitmap(Bmp);
- if (Format in [tfAlpha8ub1, tfLuminance8ub1]) then begin
- Jpg.Grayscale := true;
- Jpg.PixelFormat := jf8Bit;
+ case Format of
+ tfAlpha8ub1, tfLuminance8ub1: begin
+ aBitmap.PixelFormat := pf8bit;
+ aBitmap.Palette := CreateGrayPalette;
+ end;
+ tfRGB5A1us1:
+ aBitmap.PixelFormat := pf15bit;
+ tfR5G6B5us1:
+ aBitmap.PixelFormat := pf16bit;
+ tfRGB8ub3, tfBGR8ub3:
+ aBitmap.PixelFormat := pf24bit;
+ tfRGBA8ub4, tfBGRA8ub4:
+ aBitmap.PixelFormat := pf32bit;
+ else
+ raise EglBitmap.Create('AssignToBitmap - Invalid Pixelformat.');
end;
- Jpg.Assign(Bmp);
- Jpg.SaveToStream(aStream);
- finally
- FreeAndNil(Jpg);
+
+ RowSize := FormatDescriptor.GetSize(Width, 1);
+ pSource := Data;
+ for Row := 0 to Height-1 do begin
+ pData := aBitmap.Scanline[Row];
+ Move(pSource^, pData^, RowSize);
+ Inc(pSource, RowSize);
+ if (Format in [tfRGB8ub3, tfRGBA8ub4]) then // swap RGB(A) to BGR(A)
+ SwapRGB(pData, Width, Format = tfRGBA8ub4);
+ end;
+ result := true;
end;
- finally
- FreeAndNil(Bmp);
end;
end;
-{$IFEND}
-{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//RAW/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-type
- RawHeader = packed record
- Magic: String[5];
- Version: Byte;
- Width: Integer;
- Height: Integer;
- DataSize: Integer;
- BitsPerPixel: Integer;
- Precision: TglBitmapRec4ub;
- Shift: TglBitmapRec4ub;
- end;
-
-function TglBitmap.LoadRAW(const aStream: TStream): Boolean;
+function TglBitmapData.AssignFromBitmap(const aBitmap: TBitmap): Boolean;
var
- header: RawHeader;
- StartPos: Int64;
- fd: TFormatDescriptor;
- buf: PByte;
+ pSource, pData, pTempData: PByte;
+ Row, RowSize, TempWidth, TempHeight: Integer;
+ IntFormat: TglBitmapFormat;
begin
result := false;
- StartPos := aStream.Position;
- aStream.Read(header{%H-}, SizeOf(header));
- if (header.Magic <> 'glBMP') then begin
- aStream.Position := StartPos;
- exit;
- end;
-
- fd := TFormatDescriptor.GetFromPrecShift(header.Precision, header.Shift, header.BitsPerPixel);
- if (fd.Format = tfEmpty) then
- raise EglBitmapUnsupportedFormat.Create('no supported format found');
- buf := GetMemory(header.DataSize);
- aStream.Read(buf^, header.DataSize);
- SetDataPointer(buf, fd.Format, header.Width, header.Height);
+ if (Assigned(aBitmap)) then begin
+ case aBitmap.PixelFormat of
+ pf8bit:
+ IntFormat := tfLuminance8ub1;
+ pf15bit:
+ IntFormat := tfRGB5A1us1;
+ pf16bit:
+ IntFormat := tfR5G6B5us1;
+ pf24bit:
+ IntFormat := tfBGR8ub3;
+ pf32bit:
+ IntFormat := tfBGRA8ub4;
+ else
+ raise EglBitmap.Create('AssignFromBitmap - Invalid Pixelformat.');
+ end;
- result := true;
+ 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;
+ SetData(pData, IntFormat, TempWidth, TempHeight);
+ result := true;
+ except
+ if Assigned(pData) then
+ FreeMem(pData);
+ raise;
+ end;
+ end;
end;
-procedure TglBitmap.SaveRAW(const aStream: TStream);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
var
- header: RawHeader;
- fd: TFormatDescriptor;
+ Row, Col, AlphaInterleave: Integer;
+ pSource, pDest: PByte;
begin
- fd := TFormatDescriptor.Get(Format);
- header.Magic := 'glBMP';
- header.Version := 1;
- header.Width := Width;
- header.Height := Height;
- header.DataSize := fd.GetSize(fDimension);
- header.BitsPerPixel := fd.BitsPerPixel;
- header.Precision := fd.Precision;
- header.Shift := fd.Shift;
- aStream.Write(header, SizeOf(header));
- aStream.Write(Data^, header.DataSize);
-end;
+ result := false;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//BMP/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-const
- BMP_MAGIC = $4D42;
+ if Assigned(Data) then begin
+ if (Format in [tfAlpha8ub1, tfLuminance8Alpha8ub2, tfRGBA8ub4, tfBGRA8ub4]) then begin
+ if Assigned(aBitmap) then begin
+ aBitmap.PixelFormat := pf8bit;
+ aBitmap.Palette := CreateGrayPalette;
+ aBitmap.Width := Width;
+ aBitmap.Height := Height;
- BMP_COMP_RGB = 0;
- BMP_COMP_RLE8 = 1;
- BMP_COMP_RLE4 = 2;
- BMP_COMP_BITFIELDS = 3;
+ case Format of
+ tfLuminance8Alpha8ub2:
+ AlphaInterleave := 1;
+ tfRGBA8ub4, tfBGRA8ub4:
+ AlphaInterleave := 3;
+ else
+ AlphaInterleave := 0;
+ end;
-type
- TBMPHeader = packed record
- bfType: Word;
- bfSize: Cardinal;
- bfReserved1: Word;
- bfReserved2: Word;
- bfOffBits: Cardinal;
+ // Copy Data
+ pSource := Data;
+
+ for Row := 0 to Height -1 do begin
+ pDest := aBitmap.Scanline[Row];
+ if Assigned(pDest) then begin
+ for Col := 0 to Width -1 do begin
+ Inc(pSource, AlphaInterleave);
+ pDest^ := pSource^;
+ Inc(pDest);
+ Inc(pSource);
+ end;
+ end;
+ end;
+ result := true;
+ end;
+ end;
end;
+end;
- TBMPInfo = packed record
- biSize: Cardinal;
- biWidth: Longint;
- biHeight: Longint;
- biPlanes: Word;
- biBitCount: Word;
- biCompression: Cardinal;
- biSizeImage: Cardinal;
- biXPelsPerMeter: Longint;
- biYPelsPerMeter: Longint;
- biClrUsed: Cardinal;
- biClrImportant: Cardinal;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ data: TglBitmapData;
+begin
+ data := TglBitmapData.Create;
+ try
+ data.AssignFromBitmap(aBitmap);
+ result := AddAlphaFromDataObj(data, aFunc, aArgs);
+ finally
+ data.Free;
end;
+end;
+{$ENDIF}
+{$IFDEF GLB_LAZARUS}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadBMP(const aStream: TStream): Boolean;
+function TglBitmapData.AssignToLazIntfImage(const aImage: TLazIntfImage): Boolean;
+var
+ rid: TRawImageDescription;
+ FormatDesc: TFormatDescriptor;
+begin
+ if not Assigned(Data) then
+ raise EglBitmap.Create('no pixel data assigned. load data before save');
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function ReadInfo(out aInfo: TBMPInfo; out aMask: TglBitmapRec4ul): TglBitmapFormat;
- begin
- result := tfEmpty;
- aStream.Read(aInfo{%H-}, SizeOf(aInfo));
- FillChar(aMask{%H-}, SizeOf(aMask), 0);
+ result := false;
+ if not Assigned(aImage) or (Format = tfEmpty) then
+ exit;
+ FormatDesc := TFormatDescriptor.Get(Format);
+ if FormatDesc.IsCompressed then
+ exit;
- //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;
+ FillChar(rid{%H-}, SizeOf(rid), 0);
+ if FormatDesc.IsGrayscale then
+ rid.Format := ricfGray
+ else
+ rid.Format := ricfRGBA;
- //get suitable format
- case aInfo.biBitCount of
- 8: result := tfLuminance8ub1;
- 16: result := tfX1RGB5us1;
- 24: result := tfBGR8ub3;
- 32: result := tfXRGB8ui1;
- end;
- end;
+ rid.Width := Width;
+ rid.Height := Height;
+ rid.Depth := FormatDesc.BitsPerPixel;
+ rid.BitOrder := riboBitsInOrder;
+ rid.ByteOrder := riboLSBFirst;
+ rid.LineOrder := riloTopToBottom;
+ rid.LineEnd := rileTight;
+ rid.BitsPerPixel := FormatDesc.BitsPerPixel;
+ 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;
- 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 := tfLuminance8ub1;
- 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 := tfRGB8ub3;
- end;
+ rid.MaskBitsPerPixel := 0;
+ rid.PaletteColorCount := 0;
- result := TbmpColorTableFormat.Create;
- result.BitsPerPixel := aInfo.biBitCount;
- result.ColorTable := ColorTable;
- result.CalcValues;
- end;
+ aImage.DataDescription := rid;
+ aImage.CreateData;
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function CheckBitfields(var aFormat: TglBitmapFormat; const aMask: TglBitmapRec4ul; const aInfo: TBMPInfo): TbmpBitfieldFormat;
- var
- FormatDesc: TFormatDescriptor;
- begin
- result := nil;
- if (aMask.r <> 0) or (aMask.g <> 0) or (aMask.b <> 0) or (aMask.a <> 0) then begin
- FormatDesc := TFormatDescriptor.GetFromMask(aMask);
- if (FormatDesc.Format = tfEmpty) then
- exit;
- aFormat := FormatDesc.Format;
- 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;
+ if not Assigned(aImage.PixelData) then
+ raise EglBitmap.Create('error while creating LazIntfImage');
+ Move(Data^, aImage.PixelData^, FormatDesc.GetSize(Dimension));
- result := TbmpBitfieldFormat.Create;
- result.SetCustomValues(aInfo.biBitCount, aMask);
- end;
- end;
+ result := true;
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AssignFromLazIntfImage(const aImage: TLazIntfImage): Boolean;
var
- //simple types
- StartPos: Int64;
- ImageSize, rbLineSize, wbLineSize, Padding, i: Integer;
- PaddingBuff: Cardinal;
- LineBuf, ImageData, TmpData: PByte;
- SourceMD, DestMD: Pointer;
- BmpFormat: TglBitmapFormat;
-
- //records
- Mask: TglBitmapRec4ul;
- Header: TBMPHeader;
- Info: TBMPInfo;
-
- //classes
- SpecialFormat: TFormatDescriptor;
+ f: TglBitmapFormat;
FormatDesc: TFormatDescriptor;
+ ImageData: PByte;
+ ImageSize: Integer;
+ CanCopy: Boolean;
+ Mask: TglBitmapRec4ul;
- //////////////////////////////////////////////////////////////////////////////////////////////////
- procedure SpecialFormatReadLine(aData: PByte; aLineBuf: PByte);
+ procedure CopyConvert;
var
- i: Integer;
- Pixel: TglBitmapPixelData;
+ bfFormat: TbmpBitfieldFormat;
+ pSourceLine, pDestLine: PByte;
+ pSourceMD, pDestMD: Pointer;
+ Shift, Prec: TglBitmapRec4ub;
+ x, y: 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);
+ bfFormat := TbmpBitfieldFormat.Create;
+ with aImage.DataDescription do begin
+ Prec.r := RedPrec;
+ Prec.g := GreenPrec;
+ Prec.b := BluePrec;
+ Prec.a := AlphaPrec;
+ Shift.r := RedShift;
+ Shift.g := GreenShift;
+ Shift.b := BlueShift;
+ Shift.a := AlphaShift;
+ bfFormat.SetCustomValues(BitsPerPixel, Prec, Shift);
+ 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.BytesPerPixel * 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;
- BmpFormat := tfEmpty;
- SpecialFormat := nil;
- LineBuf := nil;
- SourceMD := nil;
- DestMD := nil;
-
- // Header
- StartPos := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
+ result := false;
+ if not Assigned(aImage) then
+ exit;
- 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;
+ with aImage.DataDescription do begin
+ Mask.r := (QWord(1 shl RedPrec )-1) shl RedShift;
+ Mask.g := (QWord(1 shl GreenPrec)-1) shl GreenShift;
+ Mask.b := (QWord(1 shl BluePrec )-1) shl BlueShift;
+ Mask.a := (QWord(1 shl AlphaPrec)-1) shl AlphaShift;
+ end;
+ FormatDesc := TFormatDescriptor.GetFromMask(Mask);
+ f := FormatDesc.Format;
+ if (f = tfEmpty) then
+ exit;
- if (BmpFormat <> tfEmpty) then begin
- FormatDesc := TFormatDescriptor.Get(BmpFormat);
- rbLineSize := Round(Info.biWidth * Info.biBitCount / 8); //ReadBuffer LineSize
- wbLineSize := Trunc(Info.biWidth * FormatDesc.BytesPerPixel);
- Padding := (((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3) - rbLineSize;
+ CanCopy :=
+ (FormatDesc.BitsPerPixel = aImage.DataDescription.Depth) and
+ (aImage.DataDescription.BitsPerPixel = aImage.DataDescription.Depth);
- //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;
+ ImageSize := FormatDesc.GetSize(aImage.Width, aImage.Height);
+ ImageData := GetMem(ImageSize);
+ try
+ if CanCopy then
+ Move(aImage.PixelData^, ImageData^, ImageSize)
+ else
+ CopyConvert;
+ SetData(ImageData, f, aImage.Width, aImage.Height);
+ except
+ if Assigned(ImageData) then
+ FreeMem(ImageData);
+ raise;
+ 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;
+ result := true;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveBMP(const aStream: TStream);
+function TglBitmapData.AssignAlphaToLazIntfImage(const aImage: TLazIntfImage): Boolean;
var
- Header: TBMPHeader;
- Info: TBMPInfo;
- Converter: TFormatDescriptor;
+ rid: TRawImageDescription;
FormatDesc: TFormatDescriptor;
- SourceFD, DestFD: Pointer;
- pData, srcData, dstData, ConvertBuffer: pByte;
-
Pixel: TglBitmapPixelData;
- ImageSize, wbLineSize, rbLineSize, Padding, LineIdx, PixelIdx: Integer;
- RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
+ 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;
- PaddingBuff: Cardinal;
+ 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;
- function GetLineWidth : Integer;
- begin
- result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
+ 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 TglBitmapData.AddAlphaFromLazIntfImage(const aImage: TLazIntfImage; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ data: TglBitmapData;
begin
- if not (ftBMP in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
+ data := TglBitmapData.Create;
+ try
+ data.AssignFromLazIntfImage(aImage);
+ result := AddAlphaFromDataObj(data, aFunc, aArgs);
+ finally
+ data.Free;
+ end;
+end;
+{$ENDIF}
- Converter := nil;
- FormatDesc := TFormatDescriptor.Get(Format);
- ImageSize := FormatDesc.GetSize(Dimension);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.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;
- 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);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.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;
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+begin
+ if TFormatDescriptor.Get(Format).IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(Format);
+ result := Convert(Self, aFunc, false, TFormatDescriptor.Get(Format).WithAlpha, aArgs);
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ FS: TFileStream;
+begin
+ FS := TFileStream.Create(aFileName, fmOpenRead);
try
- case Format of
- tfAlpha4ub1, tfAlpha8ub1, tfLuminance4ub1, tfLuminance8ub1, tfR3G3B2ub1:
- 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
- SetCustomValues(fFormat, 1, FormatDesc.Precision, FormatDesc.Shift);
- CreateColorTable;
- end;
- end;
+ result := AddAlphaFromStream(FS, aFunc, aArgs);
+ finally
+ FS.Free;
+ end;
+end;
- tfLuminance4Alpha4ub2, tfLuminance6Alpha2ub2, tfLuminance8Alpha8ub2,
- tfRGBX4us1, tfXRGB4us1, tfRGB5X1us1, tfX1RGB5us1, tfR5G6B5us1, tfRGB5A1us1, tfA1RGB5us1, tfRGBA4us1, tfARGB4us1,
- tfBGRX4us1, tfXBGR4us1, tfBGR5X1us1, tfX1BGR5us1, tfB5G6R5us1, tfBGR5A1us1, tfA1BGR5us1, tfBGRA4us1, tfABGR4us1:
- begin
- Info.biBitCount := 16;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ data: TglBitmapData;
+begin
+ data := TglBitmapData.Create(aStream);
+ try
+ result := AddAlphaFromDataObj(data, aFunc, aArgs);
+ finally
+ data.Free;
+ end;
+end;
- tfBGR8ub3, tfRGB8ub3:
- begin
- Info.biBitCount := 24;
- if (Format = tfRGB8ub3) then
- Converter := TfdBGR8ub3.Create; //use BGR8 Format Descriptor to Swap RGB Values
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromDataObj(const aDataObj: TglBitmapData; aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
+var
+ DestData, DestData2, SourceData: pByte;
+ TempHeight, TempWidth: Integer;
+ SourceFD, DestFD: TFormatDescriptor;
+ SourceMD, DestMD, DestMD2: Pointer;
- tfRGBX8ui1, tfXRGB8ui1, tfRGB10X2ui1, tfX2RGB10ui1, tfRGBA8ui1, tfARGB8ui1, tfRGBA8ub4, tfRGB10A2ui1, tfA2RGB10ui1,
- tfBGRX8ui1, tfXBGR8ui1, tfBGR10X2ui1, tfX2BGR10ui1, tfBGRA8ui1, tfABGR8ui1, tfBGRA8ub4, tfBGR10A2ui1, tfA2BGR10ui1:
- begin
- Info.biBitCount := 32;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
- else
- raise EglBitmapUnsupportedFormat.Create(Format);
- end;
- Info.biXPelsPerMeter := 2835;
- Info.biYPelsPerMeter := 2835;
+ FuncRec: TglBitmapFunctionRec;
+begin
+ result := false;
- // prepare bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
+ Assert(Assigned(Data));
+ Assert(Assigned(aDataObj));
+ Assert(Assigned(aDataObj.Data));
- RedMask := FormatDesc.Mask.r;
- GreenMask := FormatDesc.Mask.g;
- BlueMask := FormatDesc.Mask.b;
- AlphaMask := FormatDesc.Mask.a;
- end;
+ if ((aDataObj.Width = Width) and (aDataObj.Height = Height)) then begin
+ result := ConvertTo(TFormatDescriptor.Get(Format).WithAlpha);
- // headers
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Info, SizeOf(Info));
+ SourceFD := TFormatDescriptor.Get(aDataObj.Format);
+ DestFD := TFormatDescriptor.Get(Format);
- // colortable
- if Assigned(Converter) and (Converter is TbmpColorTableFormat) then
- with (Converter as TbmpColorTableFormat) do
- aStream.Write(ColorTable[0].b,
- SizeOf(TbmpColorTableEnty) * Length(ColorTable));
+ if not Assigned(aFunc) then begin
+ aFunc := glBitmapAlphaFunc;
+ FuncRec.Args := {%H-}Pointer(SourceFD.HasAlpha);
+ end else
+ FuncRec.Args := aArgs;
- // 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;
+ // Values
+ TempWidth := aDataObj.Width;
+ TempHeight := aDataObj.Height;
+ if (TempWidth <= 0) or (TempHeight <= 0) then
+ exit;
- // image data
- rbLineSize := Round(Info.biWidth * FormatDesc.BytesPerPixel);
- wbLineSize := Round(Info.biWidth * Info.biBitCount / 8);
- Padding := GetLineWidth - wbLineSize;
- PaddingBuff := 0;
+ FuncRec.Sender := Self;
+ FuncRec.Size := Dimension;
+ FuncRec.Position.Fields := FuncRec.Size.Fields;
- pData := Data;
- inc(pData, (Height-1) * rbLineSize);
+ DestData := Data;
+ DestData2 := Data;
+ SourceData := aDataObj.Data;
- // 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;
+ // Mapping
+ SourceFD.PreparePixel(FuncRec.Source);
+ DestFD.PreparePixel (FuncRec.Dest);
+ SourceMD := SourceFD.CreateMappingData;
+ DestMD := DestFD.CreateMappingData;
+ DestMD2 := DestFD.CreateMappingData;
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);
+ 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;
- dec(pData, rbLineSize);
- if (Padding > 0) then
- aStream.Write(PaddingBuff, Padding);
+ inc(FuncRec.Position.Y);
end;
finally
- // destroy row buffer
- if Assigned(ConvertBuffer) then begin
- FormatDesc.FreeMappingData(SourceFD);
- Converter.FreeMappingData(DestFD);
- FreeMem(ConvertBuffer);
- end;
+ SourceFD.FreeMappingData(SourceMD);
+ DestFD.FreeMappingData(DestMD);
+ DestFD.FreeMappingData(DestMD2);
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;
+function TglBitmapData.AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte): Boolean;
+begin
+ result := AddAlphaFromColorKeyFloat(aRed / $FF, aGreen / $FF, aBlue / $FF, aDeviation / $FF);
+end;
- TGA_NONE_COLOR_TABLE = 0;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetAlpha(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.LoadTGA(const aStream: TStream): Boolean;
+function TglBitmapData.AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single): 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;
+ values: array[0..2] of Single;
+ tmp: Cardinal;
+ i: Integer;
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetAlpha(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;
-const
- CACHE_SIZE = $4000;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromValue(const aAlpha: Byte): Boolean;
+begin
+ result := AddAlphaFromValueFloat(aAlpha / $FF);
+end;
- ////////////////////////////////////////////////////////////////////////////////////////
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetAlpha(Format).PreparePixel(PixelData);
+ result := AddAlphaFromValueFloat(aAlpha / PixelData.Range.a);
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetAlpha(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 TglBitmapData.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;
- ////////////////////////////////////////////////////////////////////////////////////////
- procedure ReadCompressed;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.FillWithColor(const aRed, aGreen, aBlue: Byte;
+ const aAlpha: Byte);
+begin
+ FillWithColorFloat(aRed/$FF, aGreen/$FF, aBlue/$FF, aAlpha/$FF);
+end;
- /////////////////////////////////////////////////////////////////
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal);
+var
+ PixelData: TglBitmapPixelData;
+begin
+ TFormatDescriptor.GetAlpha(Format).PreparePixel(PixelData);
+ FillWithColorFloat(
+ aRed / PixelData.Range.r,
+ aGreen / PixelData.Range.g,
+ aBlue / PixelData.Range.b,
+ aAlpha / PixelData.Range.a);
+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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.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;
+ Convert(glBitmapFillWithColorFunc, false, @PixelData);
+end;
- //load cache from file
- CacheSize := Min(CACHE_SIZE, aStream.Size - aStream.Position);
- aStream.Read(Cache^, CacheSize);
- CachePos := 0;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.SetData(const aData: PByte; const aFormat: TglBitmapFormat; const aWidth: Integer; const aHeight: Integer);
+begin
+ if (Data <> aData) then begin
+ if (Assigned(Data)) then
+ FreeMem(Data);
+ fData := aData;
+ end;
- //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;
+ if Assigned(fData) then begin
+ FillChar(fDimension, SizeOf(fDimension), 0);
+ if aWidth <> -1 then begin
+ fDimension.Fields := fDimension.Fields + [ffX];
+ fDimension.X := aWidth;
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;
+ if aHeight <> -1 then begin
+ fDimension.Fields := fDimension.Fields + [ffY];
+ fDimension.Y := aHeight;
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
+ fFormat := aFormat;
+ end else
+ fFormat := tfEmpty;
- repeat
- //read CommandByte
- CachedRead(Temp, 1);
- PixelRepeat := (Temp and $80) > 0;
- PixelsToRead := (Temp and $7F) + 1;
- inc(TotalPixelsRead, PixelsToRead);
+ UpdateScanlines;
+end;
- 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);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmapData.Clone: TglBitmapData;
+var
+ Temp: TglBitmapData;
+ TempPtr: PByte;
+ Size: Integer;
+begin
+ result := nil;
+ Temp := (ClassType.Create as TglBitmapData);
+ 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.SetData(TempPtr, Format, Width, Height);
+ except
+ if Assigned(TempPtr) then
+ FreeMem(TempPtr);
+ raise;
+ end;
+ end else begin
+ TempPtr := nil;
+ Temp.SetData(TempPtr, Format, Width, Height);
end;
- end;
- function IsGrayFormat: Boolean;
- begin
- result := Header.ImageType in [TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_GRAY];
+ // copy properties
+ Temp.fFormat := Format;
+ result := Temp;
+ except
+ FreeAndNil(Temp);
+ raise;
end;
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapData.Invert(const aRed, aGreen, aBlue, aAlpha: Boolean);
+var
+ mask: PtrInt;
begin
- result := false;
-
- // reading header to test file and set cursor back to begin
- StartPosition := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
+ mask :=
+ (Byte(aRed) and 1) or
+ ((Byte(aGreen) and 1) shl 1) or
+ ((Byte(aBlue) and 1) shl 2) or
+ ((Byte(aAlpha) and 1) shl 3);
+ if (mask > 0) then
+ Convert(glBitmapInvertFunc, false, {%H-}Pointer(mask));
+end;
- // 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+type
+ TMatrixItem = record
+ X, Y: Integer;
+ W: Single;
+ end;
- tgaFormat := tfEmpty;
- case Header.Bpp of
- 8: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance8ub1;
- 8: tgaFormat := tfAlpha8ub1;
- end;
+ PglBitmapToNormalMapRec = ^TglBitmapToNormalMapRec;
+ TglBitmapToNormalMapRec = Record
+ Scale: Single;
+ Heights: array of Single;
+ MatrixU : array of TMatrixItem;
+ MatrixV : array of TMatrixItem;
+ end;
- 16: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance16us1;
- 8: tgaFormat := tfLuminance8Alpha8ub2;
- end else case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfX1RGB5us1;
- 1: tgaFormat := tfA1RGB5us1;
- 4: tgaFormat := tfARGB4us1;
- end;
+const
+ ONE_OVER_255 = 1 / 255;
- 24: if not IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfBGR8ub3;
- end;
+ //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+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;
- 32: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfDepth32ui1;
- end else case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfX2RGB10ui1;
- 2: tgaFormat := tfA2RGB10ui1;
- 8: tgaFormat := tfARGB8ui1;
- 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;
- if (tgaFormat = tfEmpty) then
- raise EglBitmap.Create('LoadTga - unsupported format');
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure glBitmapToNormalMapFunc (var FuncRec: TglBitmapFunctionRec);
+type
+ TVec = Array[0..2] of Single;
+var
+ Idx: Integer;
+ du, dv: Double;
+ Len: Single;
+ Vec: TVec;
- FormatDesc := TFormatDescriptor.Get(tgaFormat);
- PixelSize := FormatDesc.GetSize(1, 1);
- LineSize := FormatDesc.GetSize(Header.Width, 1);
+ 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;
- 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;
+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;
- // 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;
+ 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;
- // Read Image
- case Header.ImageType of
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
- ReadUncompressed;
- TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
- ReadCompressed;
- end;
+ Vec[0] := -du * Scale;
+ Vec[1] := -dv * Scale;
+ Vec[2] := 1;
+ 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;
+ // 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;
- end
- else aStream.Position := StartPosition;
+
+ // 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 TglBitmap.SaveTGA(const aStream: TStream);
+procedure TglBitmapData.GenerateNormalMap(const aFunc: TglBitmapNormalMapFunc; const aScale: Single; const aUseAlpha: Boolean);
var
- Header: TTGAHeader;
- Size: Integer;
- FormatDesc: TFormatDescriptor;
+ 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 not (ftTGA in FormatGetSupportedFiles(Format)) then
+ if TFormatDescriptor.Get(Format).IsCompressed then
raise EglBitmapUnsupportedFormat.Create(Format);
- //prepare header
- FormatDesc := TFormatDescriptor.Get(Format);
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.ImageDesc := CountSetBits(FormatDesc.Range.a) and $F;
- Header.Bpp := FormatDesc.BitsPerPixel;
- Header.Width := Width;
- Header.Height := Height;
- Header.ImageDesc := Header.ImageDesc or $20; //flip y
- if FormatDesc.IsGrayscale or (not FormatDesc.IsGrayscale and not FormatDesc.HasRed and FormatDesc.HasAlpha) then
- Header.ImageType := TGA_UNCOMPRESSED_GRAY
+ if aScale > 100 then
+ Rec.Scale := 100
+ else if aScale < -100 then
+ Rec.Scale := -100
else
- Header.ImageType := TGA_UNCOMPRESSED_RGB;
- aStream.Write(Header, SizeOf(Header));
+ Rec.Scale := aScale;
- // write Data
- Size := FormatDesc.GetSize(Dimension);
- aStream.Write(Data^, Size);
-end;
+ 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);
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//DDS/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-const
- DDS_MAGIC: Cardinal = $20534444;
+ SetLength(Rec.MatrixV, 2);
+ SetEntry(Rec.MatrixV, 0, 0, 1, 0.5);
+ SetEntry(Rec.MatrixV, 1, 0, -1, -0.5);
+ end;
- // DDS_header.dwFlags
- DDSD_CAPS = $00000001;
- DDSD_HEIGHT = $00000002;
- DDSD_WIDTH = $00000004;
- DDSD_PIXELFORMAT = $00001000;
+ 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);
- // DDS_header.sPixelFormat.dwFlags
- DDPF_ALPHAPIXELS = $00000001;
- DDPF_ALPHA = $00000002;
- DDPF_FOURCC = $00000004;
- DDPF_RGB = $00000040;
- DDPF_LUMINANCE = $00020000;
+ 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;
- // DDS_header.sCaps.dwCaps1
- DDSCAPS_TEXTURE = $00001000;
+ 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);
- // DDS_header.sCaps.dwCaps2
- DDSCAPS2_CUBEMAP = $00000200;
+ 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;
- D3DFMT_DXT1 = $31545844;
- D3DFMT_DXT3 = $33545844;
- D3DFMT_DXT5 = $35545844;
+ 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;
-type
- TDDSPixelFormat = packed record
- dwSize: Cardinal;
- dwFlags: Cardinal;
- dwFourCC: Cardinal;
- dwRGBBitCount: Cardinal;
- dwRBitMask: Cardinal;
- dwGBitMask: Cardinal;
- dwBBitMask: Cardinal;
- dwABitMask: Cardinal;
+ // Daten Sammeln
+ if aUseAlpha and TFormatDescriptor.Get(Format).HasAlpha then
+ Convert(glBitmapToNormalMapPrepareAlphaFunc, false, @Rec)
+ else
+ Convert(glBitmapToNormalMapPrepareFunc, false, @Rec);
+ Convert(glBitmapToNormalMapFunc, false, @Rec);
+ finally
+ SetLength(Rec.Heights, 0);
end;
+end;
- TDDSCaps = packed record
- dwCaps1: Cardinal;
- dwCaps2: Cardinal;
- dwDDSX: Cardinal;
- dwReserved: Cardinal;
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create;
+begin
+ inherited Create;
+ fFormat := glBitmapDefaultFormat;
+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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create(const aFileName: String);
+begin
+ Create;
+ LoadFromFile(aFileName);
+end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap.LoadDDS(const aStream: TStream): Boolean;
-var
- Header: TDDSHeader;
- Converter: TbmpBitfieldFormat;
+constructor TglBitmapData.Create(const aStream: TStream);
+begin
+ Create;
+ LoadFromStream(aStream);
+end;
- function GetDDSFormat: TglBitmapFormat;
- var
- fd: TFormatDescriptor;
- i: Integer;
- Mask: TglBitmapRec4ul;
- Range: TglBitmapRec4ui;
- 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 ((dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE or DDPF_ALPHA)) > 0) then begin
- // prepare masks
- if ((dwFlags and DDPF_LUMINANCE) = 0) then begin
- Mask.r := dwRBitMask;
- Mask.g := dwGBitMask;
- Mask.b := dwBBitMask;
- end else begin
- Mask.r := dwRBitMask;
- Mask.g := dwRBitMask;
- Mask.b := dwRBitMask;
- end;
- if (dwFlags and DDPF_ALPHAPIXELS > 0) then
- Mask.a := dwABitMask
- else
- Mask.a := 0;;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create(const aSize: TglBitmapSize; 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);
+ SetData(aData, aFormat, aSize.X, aSize.Y);
+ except
+ if Assigned(aData) then
+ FreeMem(aData);
+ raise;
+ end;
+ end else begin
+ SetData(aData, aFormat, aSize.X, aSize.Y);
+ end;
+end;
- //find matching format
- fd := TFormatDescriptor.GetFromMask(Mask, dwRGBBitCount);
- result := fd.Format;
- if (result <> tfEmpty) then
- exit;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create(const aSize: TglBitmapSize; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer);
+begin
+ Create;
+ LoadFromFunc(aSize, aFormat, aFunc, aArgs);
+end;
- //find format with same Range
- for i := 0 to 3 do
- Range.arr[i] := (2 shl CountSetBits(Mask.arr[i])) - 1;
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar);
+begin
+ Create;
+ LoadFromResource(aInstance, aResource, aResType);
+end;
- //no format with same range found -> use default
- if (result = tfEmpty) then begin
- if (dwABitMask > 0) then
- result := tfRGBA8ui1
- else
- result := tfRGB8ub3;
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+constructor TglBitmapData.Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
+begin
+ Create;
+ LoadFromResourceID(aInstance, aResourceID, aResType);
+end;
- Converter := TbmpBitfieldFormat.Create;
- Converter.SetCustomValues(dwRGBBitCount, glBitmapRec4ul(dwRBitMask, dwGBitMask, dwBBitMask, dwABitMask));
- end;
- end;
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+destructor TglBitmapData.Destroy;
+begin
+ SetData(nil, tfEmpty);
+ inherited Destroy;
+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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap - PROTECTED///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetWidth: Integer;
+begin
+ if (ffX in fDimension.Fields) then
+ result := fDimension.X
+ else
+ result := -1;
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+function TglBitmap.GetHeight: Integer;
begin
- result := false;
- Converter := nil;
- StreamPos := aStream.Position;
+ if (ffY in fDimension.Fields) then
+ result := fDimension.Y
+ else
+ result := -1;
+end;
- // Magic
- aStream.Read(Magic{%H-}, sizeof(Magic));
- if (Magic <> DDS_MAGIC) then begin
- aStream.Position := StreamPos;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomData(const aValue: Pointer);
+begin
+ if fCustomData = aValue then
exit;
- end;
+ fCustomData := aValue;
+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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomName(const aValue: String);
+begin
+ if fCustomName = aValue then
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.BytesPerPixel);
- GetMem(NewImage, Header.dwHeight * LineSize);
- try
- TmpData := NewImage;
+ fCustomName := aValue;
+end;
- //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
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetCustomNameW(const aValue: WideString);
+begin
+ if fCustomNameW = aValue then
+ exit;
+ fCustomNameW := aValue;
+end;
- // 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
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetDeleteTextureOnFree(const aValue: Boolean);
+begin
+ if fDeleteTextureOnFree = aValue then
+ exit;
+ fDeleteTextureOnFree := aValue;
+end;
- // 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.');
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetID(const aValue: Cardinal);
+begin
+ if fID = aValue then
+ exit;
+ fID := aValue;
+end;
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+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);
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_EXT)}
+var
+ MaxAnisotropic: Integer;
+{$IFEND}
+begin
+ fAnisotropic := aValue;
+ if (ID > 0) then begin
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_EXT)}
+ if GL_EXT_texture_filter_anisotropic then begin
+ if fAnisotropic > 0 then begin
+ Bind(false);
+ glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, @MaxAnisotropic);
+ if aValue > MaxAnisotropic then
+ fAnisotropic := MaxAnisotropic;
+ glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
+ end;
+ end else begin
+ fAnisotropic := 0;
end;
- finally
- FreeAndNil(Converter);
+{$ELSE}
+ fAnisotropic := 0;
+{$IFEND}
end;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap.SaveDDS(const aStream: TStream);
-var
- Header: TDDSHeader;
- FormatDesc: TFormatDescriptor;
+procedure TglBitmap.CreateID;
begin
- if not (ftDDS in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create(Format);
+ if (ID <> 0) then
+ glDeleteTextures(1, @fID);
+ glGenTextures(1, @fID);
+ Bind(false);
+end;
- FormatDesc := TFormatDescriptor.Get(Format);
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.SetupParameters({$IFNDEF OPENGL_ES}out aBuildWithGlu: Boolean{$ENDIF});
+begin
+ // Set Up Parameters
+ SetWrap(fWrapS, fWrapT, fWrapR);
+ SetFilter(fFilterMin, fFilterMag);
+ SetAnisotropic(fAnisotropic);
- // Generell
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.dwSize := SizeOf(Header);
- Header.dwFlags := DDSD_WIDTH or DDSD_HEIGHT or DDSD_CAPS or DDSD_PIXELFORMAT;
+{$IFNDEF OPENGL_ES}
+ 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]);
+{$ENDIF}
- Header.dwWidth := Max(1, Width);
- Header.dwHeight := Max(1, Height);
+{$IFNDEF OPENGL_ES}
+ // 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;
+{$ELSE}
+ if (MipMap = mmMipmap) then
+ glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE);
+{$ENDIF}
+end;
- // Caps
- Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//TglBitmap - PUBLIC//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.AfterConstruction;
+begin
+ inherited AfterConstruction;
- // 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 not FormatDesc.HasColor and FormatDesc.HasAlpha then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHA;
- Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
- Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
- end else if FormatDesc.IsGrayscale then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_LUMINANCE;
- Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
- Header.PixelFormat.dwRBitMask := FormatDesc.Mask.r;
- Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
- end else begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_RGB;
- Header.PixelFormat.dwRGBBitCount := FormatDesc.BitsPerPixel;
- Header.PixelFormat.dwRBitMask := FormatDesc.Mask.r;
- Header.PixelFormat.dwGBitMask := FormatDesc.Mask.g;
- Header.PixelFormat.dwBBitMask := FormatDesc.Mask.b;
- Header.PixelFormat.dwABitMask := FormatDesc.Mask.a;
- end;
+ fID := 0;
+ fTarget := 0;
+{$IFNDEF OPENGL_ES}
+ fIsResident := false;
+{$ENDIF}
- if (FormatDesc.HasAlpha) then
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
+ fMipMap := glBitmapDefaultMipmap;
+ fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
- aStream.Write(DDS_MAGIC, sizeof(DDS_MAGIC));
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Data^, FormatDesc.GetSize(Dimension));
+ glBitmapGetDefaultFilter (fFilterMin, fFilterMag);
+ glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
+{$IFNDEF OPENGL_ES}
+ glBitmapGetDefaultSwizzle (fSwizzle[0], fSwizzle[1], fSwizzle[2], fSwizzle[3]);
+{$ENDIF}
end;
-{$IFNDEF OPENGL_ES}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap1D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.SetDataPointer(var aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
-var
- pTemp: pByte;
- Size: Integer;
+procedure TglBitmap.BeforeDestruction;
begin
- if (aHeight > 1) then begin
- Size := TFormatDescriptor.Get(aFormat).GetSize(aWidth, 1);
- GetMem(pTemp, Size);
- try
- Move(aData^, pTemp^, Size);
- FreeMem(aData);
- aData := nil;
- except
- FreeMem(pTemp);
- raise;
- end;
- end else
- pTemp := aData;
- inherited SetDataPointer(pTemp, aFormat, aWidth);
+ if (fID > 0) and fDeleteTextureOnFree then
+ glDeleteTextures(1, @fID);
+ inherited BeforeDestruction;
end;
+{$IFNDEF OPENGL_ES}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap1D.FlipHorz: Boolean;
-var
- Col: Integer;
- pTempDest, pDest, pSource: PByte;
+procedure TglBitmap.SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
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;
+ 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;
+{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.UploadData(const aBuildWithGlu: Boolean);
-var
- FormatDesc: TFormatDescriptor;
+procedure TglBitmap.SetFilter(const aMin, aMag: GLenum);
begin
- // Upload data
- FormatDesc := TFormatDescriptor.Get(Format);
- if (FormatDesc.glInternalFormat = 0) or (FormatDesc.glDataFormat = 0) then
- raise EglBitmap.Create('format is not supported by video adapter, please convert before uploading data');
+ //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;
- 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);
+ //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);
- // Free Data
- if (FreeDataAfterGenTexture) then
- FreeData;
+ if (MipMap = mmNone) {$IFNDEF OPENGL_ES}or (Target = GL_TEXTURE_RECTANGLE){$ENDIF} then begin
+ case fFilterMin of
+ GL_NEAREST, GL_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
+ GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_LINEAR:
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ end;
+ end else
+ glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
+ end;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.GenTexture(const aTestTextureSize: Boolean);
-var
- BuildWithGlu, TexRec: Boolean;
- TexSize: Integer;
-begin
- if Assigned(Data) then begin
- // Check Texture Size
- if (aTestTextureSize) then begin
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
+procedure TglBitmap.SetWrap(const S: GLenum; const T: GLenum; const R: GLenum);
- if (Width > TexSize) then
- raise EglBitmapSizeToLarge.Create('TglBitmap1D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
+ procedure CheckAndSetWrap(const aValue: Cardinal; var aTarget: Cardinal);
+ begin
+ case aValue of
+{$IFNDEF OPENGL_ES}
+ GL_CLAMP:
+ aTarget := GL_CLAMP;
+{$ENDIF}
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and
- (Target = GL_TEXTURE_RECTANGLE);
- if not (IsPowerOfTwo(Width) or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap1D.GenTexture - Rendercontex dosn''t support non power of two texture.');
- end;
+ GL_REPEAT:
+ aTarget := GL_REPEAT;
- CreateId;
- SetupParameters(BuildWithGlu);
- UploadData(BuildWithGlu);
- glAreTexturesResident(1, @fID, @fIsResident);
- end;
-end;
+ GL_CLAMP_TO_EDGE: begin
+{$IFNDEF OPENGL_ES}
+ if not GL_VERSION_1_2 and not GL_EXT_texture_edge_clamp then
+ aTarget := GL_CLAMP
+ else
+{$ENDIF}
+ aTarget := GL_CLAMP_TO_EDGE;
+ end;
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap1D.AfterConstruction;
-begin
- inherited;
- Target := GL_TEXTURE_1D;
-end;
+{$IFNDEF OPENGL_ES}
+ 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;
{$ENDIF}
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//TglBitmap2D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-function TglBitmap2D.GetScanline(const aIndex: Integer): Pointer;
-begin
- if (aIndex >= Low(fLines)) and (aIndex <= High(fLines)) then
- result := fLines[aIndex]
- else
- result := nil;
-end;
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_2_0)}
+ GL_MIRRORED_REPEAT: begin
+ {$IFNDEF OPENGL_ES}
+ if GL_VERSION_1_4 or GL_ARB_texture_mirrored_repeat or GL_IBM_texture_mirrored_repeat then
+ {$ELSE}
+ if GL_VERSION_2_0 then
+ {$ENDIF}
+ aTarget := GL_MIRRORED_REPEAT
+ else
+ raise EglBitmap.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
+ end;
+{$IFEND}
+ else
+ raise EglBitmap.Create('SetWrap - Unknow Texturewrap');
+ end;
+ 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).BytesPerPixel);
+ CheckAndSetWrap(S, fWrapS);
+ CheckAndSetWrap(T, fWrapT);
+ CheckAndSetWrap(R, fWrapR);
- 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);
+ if (ID > 0) then begin
+ Bind(false);
+ glTexParameteri(Target, GL_TEXTURE_WRAP_S, fWrapS);
+ glTexParameteri(Target, GL_TEXTURE_WRAP_T, fWrapT);
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
+ {$IFDEF OPENGL_ES} if GL_VERSION_3_0 then{$ENDIF}
+ glTexParameteri(Target, GL_TEXTURE_WRAP_R, fWrapR);
+{$IFEND}
end;
end;
+{$IF NOT DEFINED(OPENGL_ES) OR DEFINED(OPENGL_ES_3_0)}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.UploadData(const aTarget: GLenum{$IFNDEF OPENGL_ES}; const aBuildWithGlu: Boolean{$ENDIF});
-var
- FormatDesc: TFormatDescriptor;
-begin
- FormatDesc := TFormatDescriptor.Get(Format);
- if (FormatDesc.glInternalFormat = 0) or (FormatDesc.glDataFormat = 0) then
- raise EglBitmap.Create('format is not supported by video adapter, please convert before uploading data');
+procedure TglBitmap.SetSwizzle(const r, g, b, a: GLenum);
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ procedure CheckAndSetValue(const aValue: GLenum; const aIndex: Integer);
+ begin
+ if (aValue = GL_ZERO) or (aValue = GL_ONE) or (aValue = GL_ALPHA) or
+ (aValue = GL_RED) or (aValue = GL_GREEN) or (aValue = GL_BLUE) then
+ fSwizzle[aIndex] := aValue
+ else
+ raise EglBitmap.Create('SetSwizzle - Unknow Swizle Value');
+ end;
- if FormatDesc.IsCompressed then begin
- if not Assigned(glCompressedTexImage2D) then
- raise EglBitmap.Create('compressed formats not supported by video adapter');
- glCompressedTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0, FormatDesc.GetSize(fDimension), Data)
+begin
{$IFNDEF OPENGL_ES}
- end else if aBuildWithGlu then begin
- gluBuild2DMipmaps(aTarget, FormatDesc.ChannelCount, Width, Height,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
+ 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');
+{$ELSE}
+ if not GL_VERSION_3_0 then
+ raise EglBitmapNotSupported.Create('texture swizzle is not supported');
+{$ENDIF}
+ CheckAndSetValue(r, 0);
+ CheckAndSetValue(g, 1);
+ CheckAndSetValue(b, 2);
+ CheckAndSetValue(a, 3);
+
+ if (ID > 0) then begin
+ Bind(false);
+{$IFNDEF OPENGL_ES}
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_RGBA, PGLint(@fSwizzle[0]));
+{$ELSE}
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_R, PGLint(@fSwizzle[0]));
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_G, PGLint(@fSwizzle[1]));
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_B, PGLint(@fSwizzle[2]));
+ glTexParameteriv(Target, GL_TEXTURE_SWIZZLE_A, PGLint(@fSwizzle[3]));
{$ENDIF}
- end else begin
- glTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
end;
+end;
+{$IFEND}
- // Freigeben
- if (FreeDataAfterGenTexture) then
- FreeData;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap.Bind(const aEnableTextureUnit: Boolean);
+begin
+ if aEnableTextureUnit then
+ glEnable(Target);
+ if (ID > 0) then
+ glBindTexture(Target, ID);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.AfterConstruction;
+procedure TglBitmap.Unbind(const aDisableTextureUnit: Boolean);
begin
- inherited;
- Target := GL_TEXTURE_2D;
+ if aDisableTextureUnit then
+ glDisable(Target);
+ glBindTexture(Target, 0);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
+procedure TglBitmap.UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean);
var
- Temp: pByte;
- Size, w, h: Integer;
- FormatDesc: TFormatDescriptor;
+ w, h: Integer;
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;
+ w := aDataObj.Width;
+ h := aDataObj.Height;
+ fDimension.Fields := [];
+ if (w > 0) then
+ fDimension.Fields := fDimension.Fields + [ffX];
+ if (h > 0) then
+ fDimension.Fields := fDimension.Fields + [ffY];
+ fDimension.X := w;
+ fDimension.Y := h;
end;
{$IFNDEF OPENGL_ES}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GetDataFromTexture;
+function TglBitmap.DownloadData(const aDataObj: TglBitmapData): Boolean;
var
Temp: PByte;
TempWidth, TempHeight: Integer;
IntFormat: TglBitmapFormat;
FormatDesc: TFormatDescriptor;
begin
+ result := false;
Bind;
// Request Data
glGetCompressedTexImage(Target, 0, Temp)
end else
glGetTexImage(Target, 0, FormatDesc.glFormat, FormatDesc.glDataFormat, Temp);
- SetDataPointer(Temp, IntFormat, TempWidth, TempHeight); //be careful, Data could be freed by this method
+ aDataObj.SetData(Temp, IntFormat, TempWidth, TempHeight);
+ result := true;
except
if Assigned(Temp) then
FreeMem(Temp);
{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GenTexture(const aTestTextureSize: Boolean);
-var
- {$IFNDEF OPENGL_ES}
- BuildWithGlu, TexRec: Boolean;
- {$ENDIF}
- PotTex: 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);
-{$IF NOT DEFINED(OPENGL_ES)}
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and (Target = GL_TEXTURE_RECTANGLE);
- if not (PotTex or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
-{$ELSEIF DEFINED(OPENGL_ES_EXT)}
- if not PotTex and not GL_OES_texture_npot then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
-{$ELSE}
- if not PotTex then
- raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
-{$IFEND}
- end;
-
- CreateId;
- SetupParameters({$IFNDEF OPENGL_ES}BuildWithGlu{$ENDIF});
- UploadData(Target{$IFNDEF OPENGL_ES}, BuildWithGlu{$ENDIF});
-{$IFNDEF OPENGL_ES}
- glAreTexturesResident(1, @fID, @fIsResident);
-{$ENDIF}
- 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;
+constructor TglBitmap.Create;
+begin
+ if (ClassType = TglBitmap) then
+ raise EglBitmap.Create('Don''t create TglBitmap directly. Use one of the deviated classes (TglBitmap2D) instead.');
+ inherited Create;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapToNormalMapPrepareAlphaFunc(var FuncRec: TglBitmapFunctionRec);
+constructor TglBitmap.Create(const aData: TglBitmapData);
begin
- with FuncRec do
- PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Source.Data.a * ONE_OVER_255;
+ Create;
+ UploadData(aData);
end;
+{$IFNDEF OPENGL_ES}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure glBitmapToNormalMapFunc (var FuncRec: TglBitmapFunctionRec);
-type
- TVec = Array[0..2] of Single;
+//TglBitmap1D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.UploadDataIntern(const aDataObj: TglBitmapData; const aBuildWithGlu: Boolean);
var
- Idx: Integer;
- du, dv: Double;
- Len: Single;
- Vec: TVec;
+ fd: TglBitmapFormatDescriptor;
+begin
+ // Upload data
+ fd := aDataObj.FormatDescriptor;
+ if (fd.glFormat = 0) or (fd.glInternalFormat = 0) or (fd.glDataFormat = 0) then
+ raise EglBitmap.Create('format is not supported by video adapter, please convert before uploading data');
- 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;
+ if fd.IsCompressed then begin
+ if not Assigned(glCompressedTexImage1D) then
+ raise EglBitmap.Create('compressed formats not supported by video adapter');
+ glCompressedTexImage1D(Target, 0, fd.glInternalFormat, aDataObj.Width, 0, fd.GetSize(aDataObj.Width, 1), aDataObj.Data)
+ end else if aBuildWithGlu then
+ gluBuild1DMipmaps(Target, fd.glInternalFormat, aDataObj.Width, fd.glFormat, fd.glDataFormat, aDataObj.Data)
+ else
+ glTexImage1D(Target, 0, fd.glInternalFormat, aDataObj.Width, 0, fd.glFormat, fd.glDataFormat, aDataObj.Data);
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.AfterConstruction;
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;
+ inherited;
+ Target := GL_TEXTURE_1D;
+end;
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap1D.UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean);
+var
+ BuildWithGlu, TexRec: Boolean;
+ TexSize: Integer;
+begin
+ if not Assigned(aDataObj) then
+ exit;
- Vec[0] := -du * Scale;
- Vec[1] := -dv * Scale;
- Vec[2] := 1;
- end;
+ // Check Texture Size
+ if (aCheckSize) then begin
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
- // 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;
+ if (aDataObj.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.');
- // 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);
+ TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and
+ (Target = GL_TEXTURE_RECTANGLE);
+ if not (IsPowerOfTwo(aDataObj.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;
+
+ if (fID = 0) then
+ CreateID;
+ SetupParameters(BuildWithGlu);
+ UploadDataIntern(aDataObj, BuildWithGlu);
+ glAreTexturesResident(1, @fID, @fIsResident);
+
+ inherited UploadData(aDataObj, aCheckSize);
end;
+{$ENDIF}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmap2D.GenerateNormalMap(const aFunc: TglBitmapNormalMapFunc; const aScale: Single; const aUseAlpha: Boolean);
+//TglBitmap2D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.UploadDataIntern(const aDataObj: TglBitmapData; const aTarget: GLenum; const aBuildWithGlu: Boolean);
var
- Rec: TglBitmapToNormalMapRec;
+ fd: TglBitmapFormatDescriptor;
+begin
+ fd := aDataObj.FormatDescriptor;
+ if (fd.glFormat = 0) or (fd.glInternalFormat = 0) or (fd.glDataFormat = 0) then
+ raise EglBitmap.Create('format is not supported by video adapter, please convert before uploading data');
- 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;
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ if fd.IsCompressed then begin
+ if not Assigned(glCompressedTexImage2D) then
+ raise EglBitmap.Create('compressed formats not supported by video adapter');
+ glCompressedTexImage2D(aTarget, 0, fd.glInternalFormat, aDataObj.Width, aDataObj.Height, 0, fd.GetSize(fDimension), aDataObj.Data)
+{$IFNDEF OPENGL_ES}
+ end else if aBuildWithGlu then begin
+ gluBuild2DMipmaps(aTarget, fd.ChannelCount, aDataObj.Width, aDataObj.Height, fd.glFormat, fd.glDataFormat, aDataObj.Data)
+{$ENDIF}
+ end else begin
+ glTexImage2D(aTarget, 0, fd.glInternalFormat, aDataObj.Width, aDataObj.Height, 0, fd.glFormat, fd.glDataFormat, aDataObj.Data);
end;
+end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.AfterConstruction;
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);
+ inherited;
+ Target := GL_TEXTURE_2D;
+end;
- SetLength(Rec.MatrixV, 2);
- SetEntry(Rec.MatrixV, 0, 0, 1, 0.5);
- SetEntry(Rec.MatrixV, 1, 0, -1, -0.5);
- end;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmap2D.UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean);
+var
+ {$IFNDEF OPENGL_ES}
+ BuildWithGlu, TexRec: Boolean;
+ {$ENDIF}
+ PotTex: Boolean;
+ TexSize: Integer;
+begin
+ if not Assigned(aDataObj) then
+ exit;
- 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);
+ // Check Texture Size
+ if (aCheckSize) then begin
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
- 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;
+ if ((aDataObj.Width > TexSize) or (aDataObj.Height > TexSize)) then
+ raise EglBitmapSizeToLarge.Create('TglBitmap2D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
- 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);
+ PotTex := IsPowerOfTwo(aDataObj.Width) and IsPowerOfTwo(aDataObj.Height);
+{$IF NOT DEFINED(OPENGL_ES)}
+ TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and (Target = GL_TEXTURE_RECTANGLE);
+ if not (PotTex or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
+{$ELSEIF DEFINED(OPENGL_ES_EXT)}
+ if not PotTex and not GL_OES_texture_npot then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
+{$ELSE}
+ if not PotTex then
+ raise EglBitmapNonPowerOfTwo.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
+{$IFEND}
+ end;
- 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;
+ if (fID = 0) then
+ CreateID;
+ SetupParameters({$IFNDEF OPENGL_ES}BuildWithGlu{$ENDIF});
+ UploadDataIntern(aDataObj, Target{$IFNDEF OPENGL_ES}, BuildWithGlu{$ENDIF});
+{$IFNDEF OPENGL_ES}
+ glAreTexturesResident(1, @fID, @fIsResident);
+{$ENDIF}
- 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);
+ inherited UploadData(aDataObj, aCheckSize);
+end;
- 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;
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+class procedure TglBitmap2D.GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat; const aDataObj: TglBitmapData);
+var
+ Temp: pByte;
+ Size, w, h: Integer;
+ FormatDesc: TFormatDescriptor;
+begin
+ FormatDesc := TFormatDescriptor.Get(aFormat);
+ if FormatDesc.IsCompressed then
+ raise EglBitmapUnsupportedFormat.Create(aFormat);
- // Daten Sammeln
- if aUseAlpha and TFormatDescriptor.Get(Format).HasAlpha then
- Convert(glBitmapToNormalMapPrepareAlphaFunc, false, @Rec)
- else
- Convert(glBitmapToNormalMapPrepareFunc, false, @Rec);
- Convert(glBitmapToNormalMapFunc, false, @Rec);
- finally
- SetLength(Rec.Heights, 0);
+ 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);
+ aDataObj.SetData(Temp, aFormat, w, h);
+ aDataObj.FlipVert;
+ except
+ if Assigned(Temp) then
+ FreeMem(Temp);
+ raise;
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;
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapCubeMap.GenerateCubeMap(const aCubeTarget: Cardinal; const aTestTextureSize: Boolean);
+procedure TglBitmapCubeMap.UploadData(const aDataObj: TglBitmapData; const aCheckSize: Boolean);
+begin
+ Assert(false, 'TglBitmapCubeMap.UploadData - Don''t call UploadData directly, use UploadCubeMap instead');
+end;
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+procedure TglBitmapCubeMap.UploadCubeMap(const aDataObj: TglBitmapData; const aCubeTarget: Cardinal; const aCheckSize: Boolean);
var
{$IFNDEF OPENGL_ES}
BuildWithGlu: Boolean;
{$ENDIF}
TexSize: Integer;
begin
- if (aTestTextureSize) then begin
+ if (aCheckSize) then begin
glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, @TexSize);
- if (Height > TexSize) or (Width > TexSize) then
+ if (aDataObj.Width > TexSize) or (aDataObj.Height > TexSize) then
raise EglBitmapSizeToLarge.Create('TglBitmapCubeMap.GenerateCubeMap - The size for the Cubemap is to large. It''s may be not conform with the Hardware.');
{$IF NOT DEFINED(OPENGL_ES)}
- if not ((IsPowerOfTwo(Height) and IsPowerOfTwo(Width)) or GL_VERSION_2_0 or GL_ARB_texture_non_power_of_two) then
+ if not ((IsPowerOfTwo(aDataObj.Width) and IsPowerOfTwo(aDataObj.Height)) or GL_VERSION_2_0 or GL_ARB_texture_non_power_of_two) then
raise EglBitmapNonPowerOfTwo.Create('TglBitmapCubeMap.GenerateCubeMap - Cubemaps dosn''t support non power of two texture.');
{$ELSEIF DEFINED(OPENGL_ES_EXT)}
- if not (IsPowerOfTwo(Height) and IsPowerOfTwo(Width)) and not GL_OES_texture_npot then
+ if not (IsPowerOfTwo(aDataObj.Width) and IsPowerOfTwo(aDataObj.Height)) and not GL_OES_texture_npot then
raise EglBitmapNonPowerOfTwo.Create('TglBitmapCubeMap.GenerateCubeMap - Cubemaps dosn''t support non power of two texture.');
{$ELSE}
- if not (IsPowerOfTwo(Height) and IsPowerOfTwo(Width)) then
+ if not (IsPowerOfTwo(aDataObj.Width) and IsPowerOfTwo(aDataObj.Height)) then
raise EglBitmapNonPowerOfTwo.Create('TglBitmapCubeMap.GenerateCubeMap - Cubemaps dosn''t support non power of two texture.');
{$IFEND}
end;
- if (ID = 0) then
+ if (fID = 0) then
CreateID;
SetupParameters({$IFNDEF OPENGL_ES}BuildWithGlu{$ENDIF});
- UploadData(aCubeTarget{$IFNDEF OPENGL_ES}, BuildWithGlu{$ENDIF});
+ UploadDataIntern(aDataObj, aCubeTarget{$IFNDEF OPENGL_ES}, BuildWithGlu{$ENDIF});
+
+ inherited UploadData(aDataObj, aCheckSize);
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
end;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-procedure TglBitmapNormalMap.GenerateNormalMap(const aSize: Integer; const aTestTextureSize: Boolean);
+procedure TglBitmapNormalMap.GenerateNormalMap(const aSize: Integer; const aCheckSize: Boolean);
var
Rec: TglBitmapNormalMapRec;
SizeRec: TglBitmapSize;
+ DataObj: TglBitmapData;
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, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_X, aTestTextureSize);
-
- // Negative X
- Rec.Func := glBitmapNormalMapNegX;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, aTestTextureSize);
-
- // Positive Y
- Rec.Func := glBitmapNormalMapPosY;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, aTestTextureSize);
-
- // Negative Y
- Rec.Func := glBitmapNormalMapNegY;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, aTestTextureSize);
-
- // Positive Z
- Rec.Func := glBitmapNormalMapPosZ;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, aTestTextureSize);
-
- // Negative Z
- Rec.Func := glBitmapNormalMapNegZ;
- LoadFromFunc(SizeRec, glBitmapNormalMapFunc, tfBGR8ub3, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, aTestTextureSize);
+ DataObj := TglBitmapData.Create;
+ try
+ // Positive X
+ Rec.Func := glBitmapNormalMapPosX;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_POSITIVE_X, aCheckSize);
+
+ // Negative X
+ Rec.Func := glBitmapNormalMapNegX;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, aCheckSize);
+
+ // Positive Y
+ Rec.Func := glBitmapNormalMapPosY;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, aCheckSize);
+
+ // Negative Y
+ Rec.Func := glBitmapNormalMapNegY;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, aCheckSize);
+
+ // Positive Z
+ Rec.Func := glBitmapNormalMapPosZ;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, aCheckSize);
+
+ // Negative Z
+ Rec.Func := glBitmapNormalMapNegZ;
+ DataObj.LoadFromFunc(SizeRec, tfBGR8ub3, glBitmapNormalMapFunc, @Rec);
+ UploadCubeMap(DataObj, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, aCheckSize);
+ finally
+ FreeAndNil(DataObj);
+ end;
end;
{$IFEND}
projects / glBitmap.git / blobdiff