|
- {***********************************************************
- glBitmap by Steffen Xonna aka Lossy eX (2003-2008)
- http://www.opengl24.de/index.php?cat=header&file=glbitmap
- ------------------------------------------------------------
- The contents of this file are used with permission, subject to
- the Mozilla Public License Version 1.1 (the "License"); you may
- not use this file except in compliance with the License. You may
- obtain a copy of the License at
- http://www.mozilla.org/MPL/MPL-1.1.html
- ------------------------------------------------------------
- Version 2.0.3
- ------------------------------------------------------------
- History
- 21-03-2010
- - The define GLB_DELPHI dosn't check versions anymore. If you say you are using delphi
- then it's your problem if that isn't true. This prevents the unit for incompatibility
- with newer versions of Delphi.
- - Problems with D2009+ resolved (Thanks noeska and all i forgot)
- - GetPixel isn't set if you are loading textures inside the constructor (Thanks Wilson)
- 10-08-2008
- - AddAlphaFromglBitmap used the custom pointer instead the imagedatapointer (Thanks Wilson)
- - Additional Datapointer for functioninterface now has the name CustomData
- 24-07-2008
- - AssigneAlphaToBitmap overwrites his own palette (Thanks Wilson)
- - If you load an texture from an file the property Filename will be set to the name of the file
- - Three new properties to attach custom data to the Texture objects
- - CustomName (free for use string)
- - CustomNameW (free for use widestring)
- - CustomDataPointer (free for use pointer to attach other objects or complex structures)
- 27-05-2008
- - RLE TGAs loaded much faster
- 26-05-2008
- - fixed some problem with reading RLE TGAs.
- 21-05-2008
- - function clone now only copys data if it's assigned and now it also copies the ID
- - it seems that lazarus dont like comments in comments.
- 01-05-2008
- - It's possible to set the id of the texture
- - define GLB_NO_NATIVE_GL deactivated by default
- 27-04-2008
- - Now supports the following libraries
- - SDL and SDL_image
- - libPNG
- - libJPEG
- - Linux compatibillity via free pascal compatibility (delphi sources optional)
- - BMPs now loaded manuel
- - Large restructuring
- - Property DataPtr now has the name Data
- - Functions are more flexible between RGB(A) and BGR(A). RGB can be saved as Bitmap and will be saved as BGR
- - Unused Depth removed
- - Function FreeData to freeing image data added
- 24-10-2007
- - ImageID flag of TGAs was ignored. (Thanks Zwoetzen)
- 15-11-2006
- - Function SetBorderColor implemented (only used by opengl if wrap is set to GL_CLAMP_TO_BORDER)
- - Function AddAlphaFromValue implemented to use an fixed Value as Alphachannel
- - Function ReadOpenGLExtension is now only intern
- 29-06-2006
- - pngimage now disabled by default like all other versions.
- 26-06-2006
- - Setting up an anisotropic filter of 0 isnt allowed by nvidia (Thanks Ogridi)
- 22-06-2006
- - Fixed some Problem with Delphi 5
- - Now uses the newest version of pngimage. Makes saving pngs much easier.
- 22-03-2006
- - Property IsCompressed and Size removed. Not really supported by Spec (Thanks Ogridi)
- 09-03-2006
- - Internal Format ifDepth8 added
- - function GrabScreen now supports all uncompressed formats
- 31-01-2006
- - AddAlphaFromglBitmap implemented
- 29-12-2005
- - LoadFromResource and LoadFromResourceId now needs an Instance and an ResourceType (for ID)
- 28-12-2005
- - Width, Height and Depth internal changed to TglBitmapPixelPosition.
- property Width, Height, Depth are still existing and new property Dimension are avail
- 11-12-2005
- - Added native OpenGL Support. Breaking the dglOpenGL "barrier".
- 19-10-2005
- - Added function GrabScreen to class TglBitmap2D
- 18-10-2005
- - Added support to Save images
- - Added function Clone to Clone Instance
- 11-10-2005
- - Functions now works with Cardinals for each channel. Up to 32 Bits per channel.
- Usefull for Future
- - Several speed optimizations
- 09-10-2005
- - Internal structure change. Loading of TGA, PNG and DDS improved.
- Data, format and size will now set directly with SetDataPtr.
- - AddFunc now works with all Types of Images and Formats
- - Some Funtions moved to Baseclass TglBitmap
- 06-10-2005
- - Added Support to decompress DXT3 and DXT5 compressed Images.
- - Added Mapping to convert data from one format into an other.
- 05-10-2005
- - Added method ConvertTo in Class TglBitmap2D. Method allows to convert every
- supported Input format (supported by GetPixel) into any uncompresed Format
- - Added Support to decompress DXT1 compressed Images.
- - SwapColors replaced by ConvertTo
- 04-10-2005
- - Added Support for compressed DDSs
- - Added new internal formats (DXT1, DXT3, DXT5)
- 29-09-2005
- - Parameter Components renamed to InternalFormat
- 23-09-2005
- - Some AllocMem replaced with GetMem (little speed change)
- - better exception handling. Better protection from memory leaks.
- 22-09-2005
- - Added support for Direct Draw Surfaces (.DDS) (uncompressed images only)
- - Added new internal formats (RGB8, RGBA8, RGBA4, RGB5A1, RGB10A2, R5G6B5)
- 07-09-2005
- - Added support for Grayscale textures
- - Added internal formats (Alpha, Luminance, LuminanceAlpha, BGR8, BGRA8)
- 10-07-2005
- - Added support for GL_VERSION_2_0
- - Added support for GL_EXT_texture_filter_anisotropic
- 04-07-2005
- - Function FillWithColor fills the Image with one Color
- - Function LoadNormalMap added
- 30-06-2005
- - ToNormalMap allows to Create an NormalMap from the Alphachannel
- - ToNormalMap now supports Sobel (nmSobel) function.
- 29-06-2005
- - support for RLE Compressed RGB TGAs added
- 28-06-2005
- - Class TglBitmapNormalMap added to support Normalmap generation
- - Added function ToNormalMap in class TglBitmap2D to genereate normal maps from textures.
- 3 Filters are supported. (4 Samples, 3x3 and 5x5)
- 16-06-2005
- - Method LoadCubeMapClass removed
- - LoadCubeMap returnvalue is now the Texture paramter. Such as LoadTextures
- - virtual abstract method GenTexture in class TglBitmap now is protected
- 12-06-2005
- - now support DescriptionFlag in LoadTga. Allows vertical flipped images to be loaded as normal
- 10-06-2005
- - little enhancement for IsPowerOfTwo
- - TglBitmap1D.GenTexture now tests NPOT Textures
- 06-06-2005
- - some little name changes. All properties or function with Texture in name are
- now without texture in name. We have allways texture so we dosn't name it.
- 03-06-2005
- - GenTexture now tests if texture is NPOT and NPOT-Texture are supported or
- TextureTarget is GL_TEXTURE_RECTANGLE. Else it raised an exception.
- 02-06-2005
- - added support for GL_ARB_texture_rectangle, GL_EXT_texture_rectangle and GL_NV_texture_rectangle
- 25-04-2005
- - Function Unbind added
- - call of SetFilter or SetTextureWrap if TextureID exists results in setting properties to opengl texture.
- 21-04-2005
- - class TglBitmapCubeMap added (allows to Create Cubemaps)
- 29-03-2005
- - Added Support for PNG Images. (http://pngdelphi.sourceforge.net/)
- To Enable png's use the define pngimage
- 22-03-2005
- - New Functioninterface added
- - Function GetPixel added
- 27-11-2004
- - Property BuildMipMaps renamed to MipMap
- 21-11-2004
- - property Name removed.
- - BuildMipMaps is now a set of 3 values. None, GluBuildMipmaps and SGIS_generate_mipmap
- 22-05-2004
- - property name added. Only used in glForms!
- 26-11-2003
- - property FreeDataAfterGenTexture is now available as default (default = true)
- - BuildMipmaps now implemented in TglBitmap1D (i've forgotten it)
- - function MoveMemory replaced with function Move (little speed change)
- - several calculations stored in variables (little speed change)
- 29-09-2003
- - property BuildMipsMaps added (default = true)
- if BuildMipMaps isn't set GenTextures uses glTexImage[12]D else it use gluBuild[12]dMipmaps
- - property FreeDataAfterGenTexture added (default = true)
- if FreeDataAfterGenTexture is set the texturedata were deleted after the texture was generated.
- - parameter DisableOtherTextureUnits of Bind removed
- - parameter FreeDataAfterGeneration of GenTextures removed
- 12-09-2003
- - TglBitmap dosn't delete data if class was destroyed (fixed)
- 09-09-2003
- - Bind now enables TextureUnits (by params)
- - GenTextures can leave data (by param)
- - LoadTextures now optimal
- 03-09-2003
- - Performance optimization in AddFunc
- - procedure Bind moved to subclasses
- - Added new Class TglBitmap1D to support real OpenGL 1D Textures
- 19-08-2003
- - Texturefilter and texturewrap now also as defaults
- Minfilter = GL_LINEAR_MIPMAP_LINEAR
- Magfilter = GL_LINEAR
- Wrap(str) = GL_CLAMP_TO_EDGE
- - Added new format tfCompressed to create a compressed texture.
- - propertys IsCompressed, TextureSize and IsResident added
- IsCompressed and TextureSize only contains data from level 0
- 18-08-2003
- - Added function AddFunc to add PerPixelEffects to Image
- - LoadFromFunc now based on AddFunc
- - Invert now based on AddFunc
- - SwapColors now based on AddFunc
- 16-08-2003
- - Added function FlipHorz
- 15-08-2003
- - Added function LaodFromFunc to create images with function
- - Added function FlipVert
- - Added internal format RGB(A) if GL_EXT_bgra or OpenGL 1.2 isn't supported
- 29-07-2003
- - Added Alphafunctions to calculate alpha per function
- - Added Alpha from ColorKey using alphafunctions
- 28-07-2003
- - First full functionally Version of glBitmap
- - Support for 24Bit and 32Bit TGA Pictures added
- 25-07-2003
- - begin of programming
- ***********************************************************}
- unit glBitmap;
-
- {.$MESSAGE warn 'Hey. I''m the glBitmap.pas and i need to be configured. My master tell me your preferences! ;)'}
- // Please uncomment the defines below to configure the glBitmap to your preferences.
- // If you have configured the unit you can uncomment the warning above.
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // Preferences ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // activate to enable build-in OpenGL support with statically linked methods
- // use dglOpenGL.pas if not enabled
- {.$DEFINE GLB_NATIVE_OGL_STATIC}
-
- // activate to enable build-in OpenGL support with dynamically linked methods
- // use dglOpenGL.pas if not enabled
- {.$DEFINE GLB_NATIVE_OGL_DYNAMIC}
-
- // activate to enable the support for SDL_surfaces
- {$DEFINE GLB_SDL}
-
- // activate to enable the support for TBitmap from Delphi (not lazarus)
- {.$DEFINE GLB_DELPHI}
-
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // activate to enable the support of SDL_image to load files. (READ ONLY)
- // If you enable SDL_image all other libraries will be ignored!
- {$DEFINE GLB_SDL_IMAGE}
-
- // activate to enable png support with the unit pngimage. You can download it from http://pngdelphi.sourceforge.net/
- // if you enable pngimage the libPNG will be ignored
- {.$DEFINE GLB_PNGIMAGE}
-
- // activate to use the libPNG http://www.libpng.org/
- // You will need an aditional header.
- // http://www.opengl24.de/index.php?cat=header&file=libpng
- {.$DEFINE GLB_LIB_PNG}
-
- // if you enable delphi jpegs the libJPEG will be ignored
- {.$DEFINE GLB_DELPHI_JPEG}
-
- // activateto use the libJPEG http://www.ijg.org/
- // You will need an aditional header.
- // http://www.opengl24.de/index.php?cat=header&file=libjpeg
- {.$DEFINE GLB_LIB_JPEG}
-
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // PRIVATE: DO not change anything! //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // Delphi Versions
- {$IFDEF fpc}
- {$MODE Delphi}
-
- {$IFDEF CPUI386}
- {$DEFINE CPU386}
- {$ASMMODE INTEL}
- {$ENDIF}
-
- {$IFNDEF WINDOWS}
- {$linklib c}
- {$ENDIF}
- {$ENDIF}
-
- // Operation System
- {$IF DEFINED(WIN32) or DEFINED(WIN64)}
- {$DEFINE GLB_WIN}
- {$ELSEIF DEFINED(LINUX)}
- {$DEFINE GLB_LINUX}
- {$IFEND}
-
- // native OpenGL Support
- {$IF DEFINED(GLB_NATIVE_OGL_STATIC) OR DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- {$DEFINE GLB_NATIVE_OGL}
- {$IFEND}
-
- // checking define combinations
- //SDL Image
- {$IFDEF GLB_SDL_IMAGE}
- {$IFNDEF GLB_SDL}
- {$MESSAGE warn 'SDL_image won''t work without SDL. SDL will be activated.'}
- {$DEFINE GLB_SDL}
- {$ENDIF}
- {$IFDEF GLB_PNGIMAGE}
- {$MESSAGE warn 'The unit pngimage will be ignored because you are using SDL_image.'}
- {$undef GLB_PNGIMAGE}
- {$ENDIF}
- {$IFDEF GLB_DELPHI_JPEG}
- {$MESSAGE warn 'The unit JPEG will be ignored because you are using SDL_image.'}
- {$undef GLB_DELPHI_JPEG}
- {$ENDIF}
- {$IFDEF GLB_LIB_PNG}
- {$MESSAGE warn 'The library libPNG will be ignored because you are using SDL_image.'}
- {$undef GLB_LIB_PNG}
- {$ENDIF}
- {$IFDEF GLB_LIB_JPEG}
- {$MESSAGE warn 'The library libJPEG will be ignored because you are using SDL_image.'}
- {$undef GLB_LIB_JPEG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$ENDIF}
-
- // PNG Image
- {$IFDEF GLB_PNGIMAGE}
- {$IFDEF GLB_LIB_PNG}
- {$MESSAGE warn 'The library libPNG will be ignored if you are using pngimage.'}
- {$undef GLB_LIB_PNG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
- {$ENDIF}
-
- // libPNG
- {$IFDEF GLB_LIB_PNG}
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
- {$ENDIF}
-
- // JPEG Image
- {$IFDEF GLB_DELPHI_JPEG}
- {$IFDEF GLB_LIB_JPEG}
- {$MESSAGE warn 'The library libJPEG will be ignored if you are using the unit JPEG.'}
- {$undef GLB_LIB_JPEG}
- {$ENDIF}
-
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
- {$ENDIF}
-
- // libJPEG
- {$IFDEF GLB_LIB_JPEG}
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
- {$ENDIF}
-
- // native OpenGL
- {$IF DEFINED(GLB_NATIVE_OGL_STATIC) AND DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- {$MESSAGE warn 'GLB_NATIVE_OGL_STATIC will be ignored because you enabled GLB_NATIVE_OGL_DYNAMIC'}
- {$ENDIF}
-
- // general options
- {$EXTENDEDSYNTAX ON}
- {$LONGSTRINGS ON}
- {$ALIGN ON}
- {$IFNDEF FPC}
- {$OPTIMIZATION ON}
- {$ENDIF}
-
- interface
-
- uses
- {$IFNDEF GLB_NATIVE_OGL} dglOpenGL, {$ENDIF}
- {$IF DEFINED(GLB_WIN) AND
- DEFINED(GLB_NATIVE_OGL)} windows, {$IFEND}
-
- {$IFDEF GLB_SDL} SDL, {$ENDIF}
- {$IFDEF GLB_DELPHI} Dialogs, Graphics, {$ENDIF}
-
- {$IFDEF GLB_SDL_IMAGE} SDL_image, {$ENDIF}
-
- {$IFDEF GLB_PNGIMAGE} pngimage, {$ENDIF}
- {$IFDEF GLB_LIB_PNG} libPNG, {$ENDIF}
-
- {$IFDEF GLB_DELPHI_JPEG} JPEG, {$ENDIF}
- {$IFDEF GLB_LIB_JPEG} libJPEG, {$ENDIF}
-
- Classes, SysUtils;
-
- {$IFNDEF GLB_DELPHI}
- type
- HGLRC = Cardinal;
- DWORD = Cardinal;
- PDWORD = ^DWORD;
-
- TRGBQuad = packed record
- rgbBlue: Byte;
- rgbGreen: Byte;
- rgbRed: Byte;
- rgbReserved: Byte;
- end;
- {$ENDIF}
-
- {$IFDEF GLB_NATIVE_OGL}
- const
- GL_TRUE = 1;
- GL_FALSE = 0;
-
- GL_VERSION = $1F02;
- GL_EXTENSIONS = $1F03;
-
- GL_TEXTURE_1D = $0DE0;
- GL_TEXTURE_2D = $0DE1;
- GL_TEXTURE_RECTANGLE = $84F5;
-
- GL_TEXTURE_WIDTH = $1000;
- GL_TEXTURE_HEIGHT = $1001;
- GL_TEXTURE_INTERNAL_FORMAT = $1003;
-
- GL_ALPHA = $1906;
- GL_ALPHA4 = $803B;
- GL_ALPHA8 = $803C;
- GL_ALPHA12 = $803D;
- GL_ALPHA16 = $803E;
-
- GL_LUMINANCE = $1909;
- GL_LUMINANCE4 = $803F;
- GL_LUMINANCE8 = $8040;
- GL_LUMINANCE12 = $8041;
- GL_LUMINANCE16 = $8042;
-
- GL_LUMINANCE_ALPHA = $190A;
- GL_LUMINANCE4_ALPHA4 = $8043;
- GL_LUMINANCE6_ALPHA2 = $8044;
- GL_LUMINANCE8_ALPHA8 = $8045;
- GL_LUMINANCE12_ALPHA4 = $8046;
- GL_LUMINANCE12_ALPHA12 = $8047;
- GL_LUMINANCE16_ALPHA16 = $8048;
-
- GL_RGB = $1907;
- GL_BGR = $80E0;
- GL_R3_G3_B2 = $2A10;
- GL_RGB4 = $804F;
- GL_RGB5 = $8050;
- GL_RGB565 = $8D62;
- GL_RGB8 = $8051;
- GL_RGB10 = $8052;
- GL_RGB12 = $8053;
- GL_RGB16 = $8054;
-
- GL_RGBA = $1908;
- GL_BGRA = $80E1;
- GL_RGBA2 = $8055;
- GL_RGBA4 = $8056;
- GL_RGB5_A1 = $8057;
- GL_RGBA8 = $8058;
- GL_RGB10_A2 = $8059;
- GL_RGBA12 = $805A;
- GL_RGBA16 = $805B;
-
- GL_DEPTH_COMPONENT = $1902;
- GL_DEPTH_COMPONENT16 = $81A5;
- GL_DEPTH_COMPONENT24 = $81A6;
- GL_DEPTH_COMPONENT32 = $81A7;
-
- GL_COMPRESSED_RGB = $84ED;
- GL_COMPRESSED_RGBA = $84EE;
- GL_COMPRESSED_RGB_S3TC_DXT1_EXT = $83F0;
- GL_COMPRESSED_RGBA_S3TC_DXT1_EXT = $83F1;
- GL_COMPRESSED_RGBA_S3TC_DXT3_EXT = $83F2;
- GL_COMPRESSED_RGBA_S3TC_DXT5_EXT = $83F3;
-
- GL_UNSIGNED_BYTE = $1401;
- GL_UNSIGNED_BYTE_3_3_2 = $8032;
- GL_UNSIGNED_BYTE_2_3_3_REV = $8362;
-
- GL_UNSIGNED_SHORT = $1403;
- GL_UNSIGNED_SHORT_5_6_5 = $8363;
- GL_UNSIGNED_SHORT_4_4_4_4 = $8033;
- GL_UNSIGNED_SHORT_5_5_5_1 = $8034;
- GL_UNSIGNED_SHORT_5_6_5_REV = $8364;
- GL_UNSIGNED_SHORT_4_4_4_4_REV = $8365;
- GL_UNSIGNED_SHORT_1_5_5_5_REV = $8366;
-
- GL_UNSIGNED_INT = $1405;
- GL_UNSIGNED_INT_8_8_8_8 = $8035;
- GL_UNSIGNED_INT_10_10_10_2 = $8036;
- GL_UNSIGNED_INT_8_8_8_8_REV = $8367;
- GL_UNSIGNED_INT_2_10_10_10_REV = $8368;
-
- { Texture Filter }
- GL_TEXTURE_MAG_FILTER = $2800;
- GL_TEXTURE_MIN_FILTER = $2801;
- GL_NEAREST = $2600;
- GL_NEAREST_MIPMAP_NEAREST = $2700;
- GL_NEAREST_MIPMAP_LINEAR = $2702;
- GL_LINEAR = $2601;
- GL_LINEAR_MIPMAP_NEAREST = $2701;
- GL_LINEAR_MIPMAP_LINEAR = $2703;
-
- { Texture Wrap }
- GL_TEXTURE_WRAP_S = $2802;
- GL_TEXTURE_WRAP_T = $2803;
- GL_TEXTURE_WRAP_R = $8072;
- GL_CLAMP = $2900;
- GL_REPEAT = $2901;
- GL_CLAMP_TO_EDGE = $812F;
- GL_CLAMP_TO_BORDER = $812D;
- GL_MIRRORED_REPEAT = $8370;
-
- { Other }
- GL_GENERATE_MIPMAP = $8191;
- GL_TEXTURE_BORDER_COLOR = $1004;
- GL_MAX_TEXTURE_SIZE = $0D33;
- GL_PACK_ALIGNMENT = $0D05;
- GL_UNPACK_ALIGNMENT = $0CF5;
-
- GL_TEXTURE_MAX_ANISOTROPY_EXT = $84FE;
- GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT = $84FF;
-
- {$ifdef LINUX}
- libglu = 'libGLU.so.1';
- libopengl = 'libGL.so.1';
- {$else}
- libglu = 'glu32.dll';
- libopengl = 'opengl32.dll';
- {$endif}
-
- type
- GLboolean = BYTEBOOL;
- GLint = Integer;
- GLsizei = Integer;
- GLuint = Cardinal;
- GLfloat = Single;
- GLenum = Cardinal;
-
- PGLvoid = Pointer;
- PGLboolean = ^GLboolean;
- PGLint = ^GLint;
- PGLuint = ^GLuint;
- PGLfloat = ^GLfloat;
-
- TglCompressedTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglCompressedTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLenum; width: GLsizei; height: GLsizei; border: GLint; imageSize: GLsizei; const data: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetCompressedTexImage = procedure(target: GLenum; level: GLint; img: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- {$IF DEFINED(GLB_NATIVE_OGL_DYNAMIC)}
- TglEnable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglDisable = procedure(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglGetString = function(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetIntegerv = procedure(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglTexParameteri = procedure(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglTexParameterfv = procedure(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexParameteriv = procedure(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexParameterfv = procedure(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexLevelParameteriv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexLevelParameterfv = procedure(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglGenTextures = procedure(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglBindTexture = procedure(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglDeleteTextures = procedure(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglAreTexturesResident = function(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglReadPixels = procedure(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglPixelStorei = procedure(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TglTexImage1D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglTexImage2D = procedure(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TglGetTexImage = procedure(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- TgluBuild1DMipmaps = function(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
- TgluBuild2DMipmaps = function(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF}
-
- {$IFDEF GLB_LINUX}
- TglXGetProcAddress = function(ProcName: PAnsiChar): Pointer; cdecl;
- {$ELSE}
- TwglGetProcAddress = function (ProcName: PAnsiChar): Pointer; stdcall;
- {$ENDIF}
-
- {$ELSEIF DEFINED(GLB_NATIVE_OGL_STATIC)}
- procedure glEnable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glDisable(cap: GLenum); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function glGetString(name: GLenum): PAnsiChar; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetIntegerv(pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexParameteri(target: GLenum; pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glTexParameterfv(target: GLenum; pname: GLenum; const params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexParameteriv(target: GLenum; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexParameterfv(target: GLenum; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexLevelParameteriv(target: GLenum; level: GLint; pname: GLenum; params: PGLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexLevelParameterfv(target: GLenum; level: GLint; pname: GLenum; params: PGLfloat); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glGenTextures(n: GLsizei; textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glBindTexture(target: GLenum; texture: GLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glDeleteTextures(n: GLsizei; const textures: PGLuint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function glAreTexturesResident(n: GLsizei; const textures: PGLuint; residences: PGLboolean): GLboolean; {$IFDEF DGL_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glReadPixels(x: GLint; y: GLint; width: GLsizei; height: GLsizei; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glPixelStorei(pname: GLenum; param: GLint); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexImage1D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glTexImage2D(target: GLenum; level: GLint; internalformat: GLint; width: GLsizei; height: GLsizei; border: GLint; format: GLenum; _type: GLenum; const pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexImage(target: GLenum; level: GLint; format: GLenum; _type: GLenum; pixels: PGLvoid); {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libopengl;
-
- function gluBuild1DMipmaps(target: GLEnum; components, width: GLint; format, atype: GLEnum; const data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
- function gluBuild2DMipmaps(target: GLEnum; components, width, height: GLint; format, atype: GLEnum; const Data: Pointer): GLint; {$IFDEF GLB_WIN}stdcall; {$ELSE}cdecl; {$ENDIF} external libglu;
- {$ENDIF}
-
- var
- GL_VERSION_1_2,
- GL_VERSION_1_3,
- GL_VERSION_1_4,
- GL_VERSION_2_0,
-
- GL_SGIS_generate_mipmap,
-
- GL_ARB_texture_border_clamp,
- GL_ARB_texture_mirrored_repeat,
- GL_ARB_texture_rectangle,
- GL_ARB_texture_non_power_of_two,
-
- GL_IBM_texture_mirrored_repeat,
-
- GL_NV_texture_rectangle,
-
- GL_EXT_texture_edge_clamp,
- GL_EXT_texture_rectangle,
- GL_EXT_texture_filter_anisotropic: Boolean;
-
- glCompressedTexImage1D: TglCompressedTexImage1D;
- glCompressedTexImage2D: TglCompressedTexImage2D;
- glGetCompressedTexImage: TglGetCompressedTexImage;
-
- {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- glEnable: TglEnable;
- glDisable: TglDisable;
-
- glGetString: TglGetString;
- glGetIntegerv: TglGetIntegerv;
-
- glTexParameteri: TglTexParameteri;
- glTexParameterfv: TglTexParameterfv;
- glGetTexParameteriv: TglGetTexParameteriv;
- glGetTexParameterfv: TglGetTexParameterfv;
- glGetTexLevelParameteriv: TglGetTexLevelParameteriv;
- glGetTexLevelParameterfv: TglGetTexLevelParameterfv;
-
- glGenTextures: TglGenTextures;
- glBindTexture: TglBindTexture;
- glDeleteTextures: TglDeleteTextures;
-
- glAreTexturesResident: TglAreTexturesResident;
- glReadPixels: TglReadPixels;
- glPixelStorei: TglPixelStorei;
-
- glTexImage1D: TglTexImage1D;
- glTexImage2D: TglTexImage2D;
- glGetTexImage: TglGetTexImage;
-
- gluBuild1DMipmaps: TgluBuild1DMipmaps;
- gluBuild2DMipmaps: TgluBuild2DMipmaps;
-
- {$IF DEFINED(GLB_WIN)}
- wglGetProcAddress: TwglGetProcAddress;
- {$ELSEIF DEFINED(GLB_LINUX)}
- glXGetProcAddress: TglXGetProcAddress;
- glXGetProcAddressARB: TglXGetProcAddressARB;
- {$ENDIF}
- {$ENDIF}
-
- (*
- {$IFDEF GLB_DELPHI}
- var
- gLastContext: HGLRC;
- {$ENDIF}
- *)
-
- {$ENDIF}
-
- type
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- EglBitmapException = class(Exception);
- EglBitmapSizeToLargeException = class(EglBitmapException);
- EglBitmapNonPowerOfTwoException = class(EglBitmapException);
- EglBitmapUnsupportedFormat = class(EglBitmapException);
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapFormat = (
- tfEmpty = 0, //must be smallest value!
-
- tfAlpha4,
- tfAlpha8,
- tfAlpha12,
- tfAlpha16,
-
- tfLuminance4,
- tfLuminance8,
- tfLuminance12,
- tfLuminance16,
-
- tfLuminance4Alpha4,
- tfLuminance6Alpha2,
- tfLuminance8Alpha8,
- tfLuminance12Alpha4,
- tfLuminance12Alpha12,
- tfLuminance16Alpha16,
-
- tfR3G3B2,
- tfRGB4,
- tfR5G6B5,
- tfRGB5,
- tfRGB8,
- tfRGB10,
- tfRGB12,
- tfRGB16,
-
- tfRGBA2,
- tfRGBA4,
- tfRGB5A1,
- tfRGBA8,
- tfRGB10A2,
- tfRGBA12,
- tfRGBA16,
-
- tfBGR4,
- tfB5G6R5,
- tfBGR5,
- tfBGR8,
- tfBGR10,
- tfBGR12,
- tfBGR16,
-
- tfBGRA2,
- tfBGRA4,
- tfBGR5A1,
- tfBGRA8,
- tfBGR10A2,
- tfBGRA12,
- tfBGRA16,
-
- tfDepth16,
- tfDepth24,
- tfDepth32,
-
- tfS3tcDtx1RGBA,
- tfS3tcDtx3RGBA,
- tfS3tcDtx5RGBA
- );
-
- TglBitmapFileType = (
- {$IFDEF GLB_SUPPORT_PNG_WRITE} ftPNG, {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}ftJPEG, {$ENDIF}
- ftDDS,
- ftTGA,
- ftBMP);
- TglBitmapFileTypes = set of TglBitmapFileType;
-
- TglBitmapMipMap = (
- mmNone,
- mmMipmap,
- mmMipmapGlu);
-
- TglBitmapNormalMapFunc = (
- nm4Samples,
- nmSobel,
- nm3x3,
- nm5x5);
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapColorRec = packed record
- case Integer of
- 0: (r, g, b, a: Cardinal);
- 1: (arr: array[0..3] of Cardinal);
- end;
-
- TglBitmapPixelData = packed record
- Data, Range: TglBitmapColorRec;
- Format: TglBitmapFormat;
- end;
- PglBitmapPixelData = ^TglBitmapPixelData;
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmapPixelPositionFields = set of (ffX, ffY);
- TglBitmapPixelPosition = record
- Fields : TglBitmapPixelPositionFields;
- X : Word;
- Y : Word;
- end;
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap = class;
- TglBitmapFunctionRec = record
- Sender: TglBitmap;
- Size: TglBitmapPixelPosition;
- Position: TglBitmapPixelPosition;
- Source: TglBitmapPixelData;
- Dest: TglBitmapPixelData;
- Args: Pointer;
- end;
- TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec);
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap = class
- protected
- fID: GLuint;
- fTarget: GLuint;
- fAnisotropic: Integer;
- fDeleteTextureOnFree: Boolean;
- fFreeDataAfterGenTexture: Boolean;
- fData: PByte;
- fIsResident: Boolean;
- fBorderColor: array[0..3] of Single;
-
- fDimension: TglBitmapPixelPosition;
- fMipMap: TglBitmapMipMap;
- fFormat: TglBitmapFormat;
-
- // Mapping
- fPixelSize: Integer;
- fRowSize: Integer;
-
- // Filtering
- fFilterMin: Cardinal;
- fFilterMag: Cardinal;
-
- // TexturWarp
- fWrapS: Cardinal;
- fWrapT: Cardinal;
- fWrapR: Cardinal;
-
- // CustomData
- fFilename: String;
- fCustomName: String;
- fCustomNameW: WideString;
- fCustomData: Pointer;
-
- //Getter
- function GetWidth: Integer; virtual;
- function GetHeight: Integer; virtual;
-
- function GetFileWidth: Integer; virtual;
- function GetFileHeight: Integer; virtual;
-
- //Setter
- procedure SetCustomData(const aValue: Pointer);
- procedure SetCustomName(const aValue: String);
- procedure SetCustomNameW(const aValue: WideString);
- procedure SetDeleteTextureOnFree(const aValue: Boolean);
- procedure SetFormat(const aValue: TglBitmapFormat);
- procedure SetFreeDataAfterGenTexture(const aValue: Boolean);
- procedure SetID(const aValue: Cardinal);
- procedure SetMipMap(const aValue: TglBitmapMipMap);
- procedure SetTarget(const aValue: Cardinal);
- procedure SetAnisotropic(const aValue: Integer);
-
- procedure CreateID;
- procedure SetupParameters(out aBuildWithGlu: Boolean);
- procedure SetDataPointer(const aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = -1; const aHeight: Integer = -1); virtual;
- procedure GenTexture(const aTestTextureSize: Boolean = true); virtual; abstract;
-
- function FlipHorz: Boolean; virtual;
- function FlipVert: Boolean; virtual;
-
- property Width: Integer read GetWidth;
- property Height: Integer read GetHeight;
-
- property FileWidth: Integer read GetFileWidth;
- property FileHeight: Integer read GetFileHeight;
- public
- //Properties
- property ID: Cardinal read fID write SetID;
- property Target: Cardinal read fTarget write SetTarget;
- property Format: TglBitmapFormat read fFormat write SetFormat;
- property MipMap: TglBitmapMipMap read fMipMap write SetMipMap;
- property Anisotropic: Integer read fAnisotropic write SetAnisotropic;
-
- property Filename: String read fFilename;
- property CustomName: String read fCustomName write SetCustomName;
- property CustomNameW: WideString read fCustomNameW write SetCustomNameW;
- property CustomData: Pointer read fCustomData write SetCustomData;
-
- property DeleteTextureOnFree: Boolean read fDeleteTextureOnFree write SetDeleteTextureOnFree;
- property FreeDataAfterGenTexture: Boolean read fFreeDataAfterGenTexture write SetFreeDataAfterGenTexture;
-
- property Dimension: TglBitmapPixelPosition read fDimension;
- property Data: PByte read fData;
- property IsResident: Boolean read fIsResident;
-
- procedure AfterConstruction; override;
- procedure BeforeDestruction; override;
-
- //Load
- procedure LoadFromFile(const aFilename: String);
- procedure LoadFromStream(const aStream: TStream); virtual;
- procedure LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer = nil);
- {$IFDEF GLB_DELPHI}
- procedure LoadFromResource(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil);
- procedure LoadFromResourceID(const sInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
- {$ENDIF}
-
- //Save
- procedure SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
- procedure SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType); virtual;
-
- //Convert
- function AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer = nil): Boolean; overload;
- function AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
- const aFormat: TglBitmapFormat; const aArgs: Pointer = nil): Boolean; overload;
- public
- //Alpha & Co
- {$IFDEF GLB_SDL}
- function AssignToSurface(out aSurface: PSDL_Surface): Boolean;
- function AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
- function AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
- function AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil;
- const aArgs: Pointer = nil): Boolean;
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI}
- function AssignToBitmap(const aBitmap: TBitmap): Boolean;
- function AssignFromBitmap(const aBitmap: TBitmap): Boolean;
- function AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
- function AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction = nil;
- const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromResource(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil;
- const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- {$ENDIF}
-
- function AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer = nil): Boolean; virtual;
- function AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- function AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
-
- function AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte = 0): Boolean;
- function AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal = 0): Boolean;
- function AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single = 0): Boolean;
-
- function AddAlphaFromValue(const aAlpha: Byte): Boolean;
- function AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
- function AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
-
- function RemoveAlpha: Boolean; virtual;
- public
- //Common
- function Clone: TglBitmap;
- function ConvertTo(const aFormat: TglBitmapFormat): Boolean; virtual;
- procedure Invert(const aUseRGB: Boolean = true; const aUseAlpha: Boolean = false);
- procedure SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
- procedure FreeData;
-
- //ColorFill
- procedure FillWithColor(const aRed, aGreen, aBlue: Byte; const aAlpha: Byte = 255);
- procedure FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal = $FFFFFFFF);
- procedure FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha : Single = 1);
-
- //TexParameters
- procedure SetFilter(const aMin, aMag: Cardinal);
- procedure SetWrap(
- const S: Cardinal = GL_CLAMP_TO_EDGE;
- const T: Cardinal = GL_CLAMP_TO_EDGE;
- const R: Cardinal = GL_CLAMP_TO_EDGE);
-
- procedure Bind(const aEnableTextureUnit: Boolean = true); virtual;
- procedure Unbind(const aDisableTextureUnit: Boolean = true); virtual;
-
- //Constructors
- constructor Create; overload;
- constructor Create(const aFileName: String); overload;
- constructor Create(const aStream: TStream); overload;
- constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat); overload;
- constructor Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat; const aFunc: TglBitmapFunction; const aArgs: Pointer = nil); overload;
- {$IFDEF GLB_DELPHI}
- constructor Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil); overload;
- constructor Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar); overload;
- {$ENDIF}
- private
- {$IFDEF GLB_SUPPORT_PNG_READ} function LoadPNG(const aStream: TStream): Boolean; virtual; {$ENDIF}
- {$ifdef GLB_SUPPORT_PNG_WRITE} procedure SavePNG(const aStream: TStream); virtual; {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_READ} function LoadJPEG(const aStream: TStream): Boolean; virtual; {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE} procedure SaveJPEG(const aStream: TStream); virtual; {$ENDIF}
-
- function LoadBMP(const aStream: TStream): Boolean; virtual;
- procedure SaveBMP(const aStream: TStream); virtual;
-
- function LoadTGA(const aStream: TStream): Boolean; virtual;
- procedure SaveTGA(const aStream: TStream); virtual;
-
- function LoadDDS(const aStream: TStream): Boolean; virtual;
- procedure SaveDDS(const aStream: TStream); virtual;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TglBitmap2D = class(TglBitmap)
- protected
- // Bildeinstellungen
- fLines: array of PByte;
-
- (* TODO
- procedure GetDXTColorBlock(pData: pByte; relX, relY: Integer; var Pixel: TglBitmapPixelData);
- procedure GetPixel2DDXT1(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- procedure GetPixel2DDXT3(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- procedure GetPixel2DDXT5(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- procedure GetPixel2DUnmap(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- procedure SetPixel2DUnmap(const Pos: TglBitmapPixelPosition; const Pixel: TglBitmapPixelData);
- *)
-
- function GetScanline(const aIndex: Integer): Pointer;
- procedure SetDataPointer(const aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer = - 1; const aHeight: Integer = - 1); override;
- procedure UploadData(const aTarget: Cardinal; const aBuildWithGlu: Boolean);
- public
- property Width;
- property Height;
- property Scanline[const aIndex: Integer]: Pointer read GetScanline;
-
- procedure AfterConstruction; override;
-
- procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
- procedure GetDataFromTexture;
- procedure GenTexture(const aTestTextureSize: Boolean = true); override;
-
- function FlipHorz: Boolean; override;
- function FlipVert: Boolean; override;
-
- procedure ToNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3;
- const aScale: Single = 2; const aUseAlpha: Boolean = false);
- end;
-
- (* TODO
- TglBitmapCubeMap = class(TglBitmap2D)
- protected
- fGenMode: Integer;
-
- // Hide GenTexture
- procedure GenTexture(TestTextureSize: Boolean = true); reintroduce;
- public
- procedure AfterConstruction; override;
-
- procedure GenerateCubeMap(CubeTarget: Cardinal; TestTextureSize: Boolean = true);
-
- procedure Unbind(DisableTexCoordsGen: Boolean = true; DisableTextureUnit: Boolean = true); reintroduce; virtual;
- procedure Bind(EnableTexCoordsGen: Boolean = true; EnableTextureUnit: Boolean = true); reintroduce; virtual;
- end;
-
-
- TglBitmapNormalMap = class(TglBitmapCubeMap)
- public
- procedure AfterConstruction; override;
-
- procedure GenerateNormalMap(Size: Integer = 32; TestTextureSize: Boolean = true);
- end;
-
-
- TglBitmap1D = class(TglBitmap)
- protected
- procedure GetPixel1DUnmap(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
-
- procedure SetDataPointer(Data: pByte; Format: TglBitmapInternalFormat; Width: Integer = -1; Height: Integer = -1); override;
- procedure UploadData (Target, Format, InternalFormat, Typ: Cardinal; BuildWithGlu: Boolean);
- public
- // propertys
- property Width;
-
- procedure AfterConstruction; override;
-
- // Other
- function FlipHorz: Boolean; override;
-
- // Generation
- procedure GenTexture(TestTextureSize: Boolean = true); override;
- end;
- *)
-
- const
- NULL_SIZE: TglBitmapPixelPosition = (Fields: []; X: 0; Y: 0);
-
- procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
- procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
- procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
- procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
- procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
- procedure glBitmapSetDefaultWrap(
- const S: Cardinal = GL_CLAMP_TO_EDGE;
- const T: Cardinal = GL_CLAMP_TO_EDGE;
- const R: Cardinal = GL_CLAMP_TO_EDGE);
-
- function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
- function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
- function glBitmapGetDefaultMipmap: TglBitmapMipMap;
- function glBitmapGetDefaultFormat: TglBitmapFormat;
- procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal);
- procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal);
-
- function glBitmapPosition(X: Integer = -1; Y: Integer = -1): TglBitmapPixelPosition;
- function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
- function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
-
- var
- glBitmapDefaultDeleteTextureOnFree: Boolean;
- glBitmapDefaultFreeDataAfterGenTextures: Boolean;
- glBitmapDefaultFormat: TglBitmapFormat;
- glBitmapDefaultMipmap: TglBitmapMipMap;
- glBitmapDefaultFilterMin: Cardinal;
- glBitmapDefaultFilterMag: Cardinal;
- glBitmapDefaultWrapS: Cardinal;
- glBitmapDefaultWrapT: Cardinal;
- glBitmapDefaultWrapR: Cardinal;
-
- {$IFDEF GLB_DELPHI}
- function CreateGrayPalette: HPALETTE;
- {$ENDIF}
-
- implementation
-
-
- (* TODO
- function FormatIsCompressed(Format: TglBitmapInternalFormat): boolean;
- function FormatIsUncompressed(Format: TglBitmapInternalFormat): boolean;
- function LoadTexture(Filename: String; var Texture: Cardinal{$IFDEF GLB_DELPHI}; LoadFromRes : Boolean; Instance: Cardinal = 0{$ENDIF}): Boolean;
- function LoadCubeMap(PositiveX, NegativeX, PositiveY, NegativeY, PositiveZ, NegativeZ: String; var Texture: Cardinal{$IFDEF GLB_DELPHI}; LoadFromRes : Boolean; Instance: Cardinal = 0{$ENDIF}): Boolean;
- function LoadNormalMap(Size: Integer; var Texture: Cardinal): Boolean;
- *)
-
- uses
- Math, syncobjs;
-
- type
- ////////////////////////////////////////////////////////////////////////////////////////////////////
- TShiftRec = packed record
- case Integer of
- 0: (r, g, b, a: Byte);
- 1: (arr: array[0..3] of Byte);
- end;
-
- TFormatDescriptor = class(TObject)
- private
- function GetRedMask: QWord;
- function GetGreenMask: QWord;
- function GetBlueMask: QWord;
- function GetAlphaMask: QWord;
- protected
- fFormat: TglBitmapFormat;
- fWithAlpha: TglBitmapFormat;
- fWithoutAlpha: TglBitmapFormat;
- fRGBInverted: TglBitmapFormat;
- fUncompressed: TglBitmapFormat;
- fPixelSize: Single;
- fIsCompressed: Boolean;
-
- fRange: TglBitmapColorRec;
- fShift: TShiftRec;
-
- fglFormat: Cardinal;
- fglInternalFormat: Cardinal;
- fglDataFormat: Cardinal;
-
- function GetComponents: Integer; virtual;
- public
- property Format: TglBitmapFormat read fFormat;
- property WithAlpha: TglBitmapFormat read fWithAlpha;
- property WithoutAlpha: TglBitmapFormat read fWithoutAlpha;
- property RGBInverted: TglBitmapFormat read fRGBInverted;
- property Components: Integer read GetComponents;
- property PixelSize: Single read fPixelSize;
- property IsCompressed: Boolean read fIsCompressed;
-
- property glFormat: Cardinal read fglFormat;
- property glInternalFormat: Cardinal read fglInternalFormat;
- property glDataFormat: Cardinal read fglDataFormat;
-
- property Range: TglBitmapColorRec read fRange;
- property Shift: TShiftRec read fShift;
-
- property RedMask: QWord read GetRedMask;
- property GreenMask: QWord read GetGreenMask;
- property BlueMask: QWord read GetBlueMask;
- property AlphaMask: QWord read GetAlphaMask;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); virtual; abstract;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); virtual; abstract;
-
- function GetSize(const aSize: TglBitmapPixelPosition): Integer; virtual; overload;
- function GetSize(const aWidth, aHeight: Integer): Integer; virtual; overload;
-
- function CreateMappingData: Pointer; virtual;
- procedure FreeMappingData(var aMappingData: Pointer); virtual;
-
- function IsEmpty: Boolean; virtual;
- function HasAlpha: Boolean; virtual;
- function MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean; virtual;
-
- procedure PreparePixel(out aPixel: TglBitmapPixelData); virtual;
-
- constructor Create; virtual;
- public
- class procedure Init;
- class function Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
- class function GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
- class procedure Clear;
- class procedure Finalize;
- end;
- TFormatDescriptorClass = class of TFormatDescriptor;
-
- TfdEmpty = class(TFormatDescriptor);
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminance_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdUniversal_UB1 = class(TFormatDescriptor) //1* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminanceAlpha_UB2 = class(TfdLuminance_UB1) //2* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGB_UB3 = class(TFormatDescriptor) //3* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGR_UB3 = class(TFormatDescriptor) //3* unsigned byte (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGBA_UB4 = class(TfdRGB_UB3) //4* unsigned byte
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGRA_UB4 = class(TfdBGR_UB3) //4* unsigned byte (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminance_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdUniversal_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdDepth_US1 = class(TFormatDescriptor) //1* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdLuminanceAlpha_US2 = class(TfdLuminance_US1) //2* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGB_US3 = class(TFormatDescriptor) //3* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGR_US3 = class(TFormatDescriptor) //3* unsigned short (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdRGBA_US4 = class(TfdRGB_US3) //4* unsigned short
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdBGRA_US4 = class(TfdBGR_US3) //4* unsigned short (inverse)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdUniversal_UI1 = class(TFormatDescriptor) //1* unsigned int
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdDepth_UI1 = class(TFormatDescriptor) //1* unsigned int
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TfdAlpha4 = class(TfdAlpha_UB1)
- constructor Create; override;
- end;
-
- TfdAlpha8 = class(TfdAlpha_UB1)
- constructor Create; override;
- end;
-
- TfdAlpha12 = class(TfdAlpha_US1)
- constructor Create; override;
- end;
-
- TfdAlpha16 = class(TfdAlpha_US1)
- constructor Create; override;
- end;
-
- TfdLuminance4 = class(TfdLuminance_UB1)
- constructor Create; override;
- end;
-
- TfdLuminance8 = class(TfdLuminance_UB1)
- constructor Create; override;
- end;
-
- TfdLuminance12 = class(TfdLuminance_US1)
- constructor Create; override;
- end;
-
- TfdLuminance16 = class(TfdLuminance_US1)
- constructor Create; override;
- end;
-
- TfdLuminance4Alpha4 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance6Alpha2 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance8Alpha8 = class(TfdLuminanceAlpha_UB2)
- constructor Create; override;
- end;
-
- TfdLuminance12Alpha4 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdLuminance12Alpha12 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdLuminance16Alpha16 = class(TfdLuminanceAlpha_US2)
- constructor Create; override;
- end;
-
- TfdR3G3B2 = class(TfdUniversal_UB1)
- constructor Create; override;
- end;
-
- TfdRGB4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdR5G6B5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB8 = class(TfdRGB_UB3)
- constructor Create; override;
- end;
-
- TfdRGB10 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdRGB12 = class(TfdRGB_US3)
- constructor Create; override;
- end;
-
- TfdRGB16 = class(TfdRGB_US3)
- constructor Create; override;
- end;
-
- TfdRGBA2 = class(TfdRGBA_UB4)
- constructor Create; override;
- end;
-
- TfdRGBA4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGB5A1 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdRGBA8 = class(TfdRGBA_UB4)
- constructor Create; override;
- end;
-
- TfdRGB10A2 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdRGBA12 = class(TfdRGBA_US4)
- constructor Create; override;
- end;
-
- TfdRGBA16 = class(TfdRGBA_US4)
- constructor Create; override;
- end;
-
- TfdBGR4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdB5G6R5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR5 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR8 = class(TfdBGR_UB3)
- constructor Create; override;
- end;
-
- TfdBGR10 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdBGR12 = class(TfdBGR_US3)
- constructor Create; override;
- end;
-
- TfdBGR16 = class(TfdBGR_US3)
- constructor Create; override;
- end;
-
- TfdBGRA2 = class(TfdBGRA_UB4)
- constructor Create; override;
- end;
-
- TfdBGRA4 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGR5A1 = class(TfdUniversal_US1)
- constructor Create; override;
- end;
-
- TfdBGRA8 = class(TfdBGRA_UB4)
- constructor Create; override;
- end;
-
- TfdBGR10A2 = class(TfdUniversal_UI1)
- constructor Create; override;
- end;
-
- TfdBGRA12 = class(TfdBGRA_US4)
- constructor Create; override;
- end;
-
- TfdBGRA16 = class(TfdBGRA_US4)
- constructor Create; override;
- end;
-
- TfdDepth16 = class(TfdDepth_US1)
- constructor Create; override;
- end;
-
- TfdDepth24 = class(TfdDepth_UI1)
- constructor Create; override;
- end;
-
- TfdDepth32 = class(TfdDepth_UI1)
- constructor Create; override;
- end;
-
- TfdS3tcDtx1RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdS3tcDtx3RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- TfdS3tcDtx5RGBA = class(TFormatDescriptor)
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- constructor Create; override;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TbmpBitfieldFormat = class(TFormatDescriptor)
- private
- procedure SetRedMask (const aValue: QWord);
- procedure SetGreenMask(const aValue: QWord);
- procedure SetBlueMask (const aValue: QWord);
- procedure SetAlphaMask(const aValue: QWord);
-
- procedure Update(aMask: QWord; out aRange: Cardinal; out aShift: Byte);
- public
- property RedMask: QWord read GetRedMask write SetRedMask;
- property GreenMask: QWord read GetGreenMask write SetGreenMask;
- property BlueMask: QWord read GetBlueMask write SetBlueMask;
- property AlphaMask: QWord read GetAlphaMask write SetAlphaMask;
-
- property PixelSize: Single read fPixelSize write fPixelSize;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- TbmpColorTableEnty = packed record
- b, g, r, a: Byte;
- end;
- TbmpColorTable = array of TbmpColorTableEnty;
- TbmpColorTableFormat = class(TFormatDescriptor)
- private
- fColorTable: TbmpColorTable;
- public
- property PixelSize: Single read fPixelSize write fPixelSize;
- property ColorTable: TbmpColorTable read fColorTable write fColorTable;
- property Range: TglBitmapColorRec read fRange write fRange;
- property Shift: TShiftRec read fShift write fShift;
- property Format: TglBitmapFormat read fFormat write fFormat;
-
- procedure CreateColorTable;
-
- procedure Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer); override;
- procedure Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer); override;
- destructor Destroy; override;
- end;
-
- const
- LUMINANCE_WEIGHT_R = 0.30;
- LUMINANCE_WEIGHT_G = 0.59;
- LUMINANCE_WEIGHT_B = 0.11;
-
- ALPHA_WEIGHT_R = 0.30;
- ALPHA_WEIGHT_G = 0.59;
- ALPHA_WEIGHT_B = 0.11;
-
- DEPTH_WEIGHT_R = 0.333333333;
- DEPTH_WEIGHT_G = 0.333333333;
- DEPTH_WEIGHT_B = 0.333333333;
-
- UNSUPPORTED_FORMAT = 'the given format isn''t supported by this function.';
-
- FORMAT_DESCRIPTOR_CLASSES: array[TglBitmapFormat] of TFormatDescriptorClass = (
- TfdEmpty,
-
- TfdAlpha4,
- TfdAlpha8,
- TfdAlpha12,
- TfdAlpha16,
-
- TfdLuminance4,
- TfdLuminance8,
- TfdLuminance12,
- TfdLuminance16,
-
- TfdLuminance4Alpha4,
- TfdLuminance6Alpha2,
- TfdLuminance8Alpha8,
- TfdLuminance12Alpha4,
- TfdLuminance12Alpha12,
- TfdLuminance16Alpha16,
-
- TfdR3G3B2,
- TfdRGB4,
- TfdR5G6B5,
- TfdRGB5,
- TfdRGB8,
- TfdRGB10,
- TfdRGB12,
- TfdRGB16,
-
- TfdRGBA2,
- TfdRGBA4,
- TfdRGB5A1,
- TfdRGBA8,
- TfdRGB10A2,
- TfdRGBA12,
- TfdRGBA16,
-
- TfdBGR4,
- TfdB5G6R5,
- TfdBGR5,
- TfdBGR8,
- TfdBGR10,
- TfdBGR12,
- TfdBGR16,
-
- TfdBGRA2,
- TfdBGRA4,
- TfdBGR5A1,
- TfdBGRA8,
- TfdBGR10A2,
- TfdBGRA12,
- TfdBGRA16,
-
- TfdDepth16,
- TfdDepth24,
- TfdDepth32,
-
- TfdS3tcDtx1RGBA,
- TfdS3tcDtx3RGBA,
- TfdS3tcDtx5RGBA
- );
-
- var
- FormatDescriptorCS: TCriticalSection;
- FormatDescriptors: array[TglBitmapFormat] of TFormatDescriptor;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapPosition(X, Y: Integer): TglBitmapPixelPosition;
- begin
- result.Fields := [];
-
- if X >= 0 then
- result.Fields := result.Fields + [ffX];
- if Y >= 0 then
- result.Fields := result.Fields + [ffY];
-
- result.X := Max(0, X);
- result.Y := Max(0, Y);
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapColorRec(const r, g, b, a: Cardinal): TglBitmapColorRec;
- begin
- result.r := r;
- result.g := g;
- result.b := b;
- result.a := a;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapColorRecCmp(const r1, r2: TglBitmapColorRec): Boolean;
- var
- i: Integer;
- begin
- result := false;
- for i := 0 to high(r1.arr) do
- if (r1.arr[i] <> r2.arr[i]) then
- exit;
- result := true;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapShiftRec(const r, g, b, a: Byte): TShiftRec;
- begin
- result.r := r;
- result.g := g;
- result.b := b;
- result.a := a;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function FormatGetSupportedFiles(const aFormat: TglBitmapFormat): TglBitmapFileTypes;
- begin
- result := [];
-
- if (aFormat in [
- //4 bbp
- tfLuminance4,
-
- //8bpp
- tfR3G3B2, tfLuminance8,
-
- //16bpp
- tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
- tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4,
-
- //24bpp
- tfBGR8, tfRGB8,
-
- //32bpp
- tfRGB10, tfRGB10A2, tfRGBA8,
- tfBGR10, tfBGR10A2, tfBGRA8]) then
- result := result + [ftBMP];
-
- if (aFormat in [
- //8 bpp
- tfLuminance8, tfAlpha8,
-
- //16 bpp
- tfLuminance16, tfLuminance8Alpha8,
- tfRGB5, tfRGB5A1, tfRGBA4,
- tfBGR5, tfBGR5A1, tfBGRA4,
-
- //24 bpp
- tfRGB8, tfBGR8,
-
- //32 bpp
- tfRGB10A2, tfRGBA8, tfBGR10A2, tfBGRA8]) then
- result := result + [ftTGA];
-
- if (aFormat in [
- //8 bpp
- tfAlpha8, tfLuminance8, tfLuminance4Alpha4, tfLuminance6Alpha2,
- tfR3G3B2, tfRGBA2, tfBGRA2,
-
- //16 bpp
- tfAlpha16, tfLuminance16, tfLuminance8Alpha8, tfLuminance12Alpha4,
- tfRGB4, tfR5G6B5, tfRGB5, tfRGBA4, tfRGB5A1,
- tfBGR4, tfB5G6R5, tfBGR5, tfBGRA4, tfBGR5A1,
-
- //24 bpp
- tfRGB8, tfBGR8,
-
- //32 bbp
- tfLuminance16Alpha16,
- tfRGBA8, tfRGB10A2,
- tfBGRA8, tfBGR10A2,
-
- //compressed
- tfS3tcDtx1RGBA, tfS3tcDtx3RGBA, tfS3tcDtx5RGBA]) then
- result := result + [ftDDS];
-
- (* TODO
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- if aFormat in [
- tfAlpha4, tfAlpha8, tfAlpha12, tfAlpha16,
- tfLuminance4, tfLuminance8, tfLuminance12, tfLuminance16,
- tfuminance4Alpha4, tfLuminance6Alpha2, tfLuminance8Alpha8, tfLuminance12Alpha4, tfLuminance12Alpha12, tfLuminance16Alpha16,
- tfR3G3B2, tfRGB4, tfRGB5, tfRGB8, tfRGB10, tfRGB12, tfRGB16,
- tfRGBA2, tfRGBA4, tfRGB5A1, tfRGBA8, tfRGB10A2, tfRGBA12, tfRGBA16,
- tfDepth16, tfDepth24, tfDepth32]
- then
- result := result + [ftPNG];
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- if Format in [
- tfAlpha4, tfAlpha8, tfAlpha12, tfAlpha16,
- tfLuminance4, tfLuminance8, tfLuminance12, tfLuminance16,
- tfR3G3B2, tfRGB4, tfRGB5, tfRGB8, tfRGB10, tfRGB12, tfRGB16,
- tfDepth16, tfDepth24, tfDepth32]
- then
- result := result + [ftJPEG];
- {$ENDIF}
-
- if aFormat in [
- tfAlpha4, tfAlpha8, tfAlpha12, tfAlpha16,
- tfLuminance4, tfLuminance8, tfLuminance12, tfLuminance16,
- tfuminance4Alpha4, tfLuminance6Alpha2, tfLuminance8Alpha8, tfLuminance12Alpha4, tfLuminance12Alpha12, tfLuminance16Alpha16,
- tfR3G3B2, tfRGB4, tfRGB5, tfRGB8, tfRGB10, tfRGB12, tfRGB16,
- tfRGBA2, tfRGBA4, tfRGB5A1, tfRGBA8, tfRGB10A2, tfRGBA12, tfRGBA16,
- tfDepth16, tfDepth24, tfDepth32]
- then
- result := result + [ftDDS, ftTGA, ftBMP];
- *)
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function IsPowerOfTwo(aNumber: Integer): Boolean;
- begin
- while (aNumber and 1) = 0 do
- aNumber := aNumber shr 1;
- result := aNumber = 1;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function GetTopMostBit(aBitSet: QWord): Integer;
- begin
- result := 0;
- while aBitSet > 0 do begin
- inc(result);
- aBitSet := aBitSet shr 1;
- end;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function CountSetBits(aBitSet: QWord): Integer;
- begin
- result := 0;
- while aBitSet > 0 do begin
- if (aBitSet and 1) = 1 then
- inc(result);
- aBitSet := aBitSet shr 1;
- end;
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function LuminanceWeight(const aPixel: TglBitmapPixelData): Cardinal;
- begin
- result := Trunc(
- LUMINANCE_WEIGHT_R * aPixel.Data.r +
- LUMINANCE_WEIGHT_G * aPixel.Data.g +
- LUMINANCE_WEIGHT_B * aPixel.Data.b);
- end;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function DepthWeight(const aPixel: TglBitmapPixelData): Cardinal;
- begin
- result := Trunc(
- DEPTH_WEIGHT_R * aPixel.Data.r +
- DEPTH_WEIGHT_G * aPixel.Data.g +
- DEPTH_WEIGHT_B * aPixel.Data.b);
- end;
-
- {$IFDEF GLB_NATIVE_OGL}
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //OpenGLInitialization///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- var
- GL_LibHandle: Pointer = nil;
-
- function glbGetProcAddress(aProcName: PChar; aLibHandle: Pointer = nil): Pointer;
- begin
- result := nil;
-
- if not Assigned(aLibHandle) then
- aLibHandle := GL_LibHandle;
-
- {$IF DEFINED(GLB_WIN)}
- result := GetProcAddress({%H-}HMODULE(aLibHandle), aProcName);
- if Assigned(result) then
- exit;
-
- if Assigned(wglGetProcAddress) then
- result := wglGetProcAddress(aProcName);
- {$ELSEIF DEFINED(GLB_LINUX)}
- if Assigned(glXGetProcAddress) then begin
- result := glXGetProcAddress(aProcName);
- if Assigned(result) then
- exit;
- end;
-
- if Assigned(glXGetProcAddressARB) then begin
- result := glXGetProcAddressARB(aProcName);
- if Assigned(result) then
- exit;
- end;
-
- result := dlsym(aLibHandle, aProcName);
- {$ENDIF}
- if not Assigned(result) then
- raise EglBitmapException.Create('unable to load procedure form library: ' + aProcName);
- end;
-
- {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- var
- GLU_LibHandle: Pointer = nil;
- OpenGLInitialized: Boolean;
- InitOpenGLCS: TCriticalSection;
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glbInitOpenGL;
-
- ////////////////////////////////////////////////////////////////////////////////
- function glbLoadLibrary(const aName: PChar): Pointer;
- begin
- {$IF DEFINED(GLB_WIN)}
- result := {%H-}Pointer(LoadLibrary(aName));
- {$ELSEIF DEFINED(GLB_LINUX)}
- result := dlopen(Name, RTLD_LAZY);
- {$ELSE}
- result := nil;
- {$ENDIF}
- end;
-
- ////////////////////////////////////////////////////////////////////////////////
- function glbFreeLibrary(const aLibHandle: Pointer): Boolean;
- begin
- result := false;
- if not Assigned(aLibHandle) then
- exit;
-
- {$IF DEFINED(GLB_WIN)}
- Result := FreeLibrary({%H-}HINST(aLibHandle));
- {$ELSEIF DEFINED(GLB_LINUX)}
- Result := dlclose(aLibHandle) = 0;
- {$ENDIF}
- end;
-
- begin
- if Assigned(GL_LibHandle) then
- glbFreeLibrary(GL_LibHandle);
-
- if Assigned(GLU_LibHandle) then
- glbFreeLibrary(GLU_LibHandle);
-
- GL_LibHandle := glbLoadLibrary(libopengl);
- if not Assigned(GL_LibHandle) then
- raise EglBitmapException.Create('unable to load library: ' + libopengl);
-
- GLU_LibHandle := glbLoadLibrary(libglu);
- if not Assigned(GLU_LibHandle) then
- raise EglBitmapException.Create('unable to load library: ' + libglu);
-
- try
- {$IF DEFINED(GLB_WIN)}
- wglGetProcAddress := glbGetProcAddress('wglGetProcAddress');
- {$ELSEIF DEFINED(GLB_LINUX)}
- glXGetProcAddress := glbGetProcAddress('glXGetProcAddress');
- glXGetProcAddressARB := dglGetProcAddress('glXGetProcAddressARB');
- {$ENDIF}
-
- glEnable := glbGetProcAddress('glEnable');
- glDisable := glbGetProcAddress('glDisable');
- glGetString := glbGetProcAddress('glGetString');
- glGetIntegerv := glbGetProcAddress('glGetIntegerv');
- glTexParameteri := glbGetProcAddress('glTexParameteri');
- glTexParameterfv := glbGetProcAddress('glTexParameterfv');
- glGetTexParameteriv := glbGetProcAddress('glGetTexParameteriv');
- glGetTexParameterfv := glbGetProcAddress('glGetTexParameterfv');
- glGetTexLevelParameteriv := glbGetProcAddress('glGetTexLevelParameteriv');
- glGetTexLevelParameterfv := glbGetProcAddress('glGetTexLevelParameterfv');
- glGenTextures := glbGetProcAddress('glGenTextures');
- glBindTexture := glbGetProcAddress('glBindTexture');
- glDeleteTextures := glbGetProcAddress('glDeleteTextures');
- glAreTexturesResident := glbGetProcAddress('glAreTexturesResident');
- glReadPixels := glbGetProcAddress('glReadPixels');
- glPixelStorei := glbGetProcAddress('glPixelStorei');
- glTexImage1D := glbGetProcAddress('glTexImage1D');
- glTexImage2D := glbGetProcAddress('glTexImage2D');
- glGetTexImage := glbGetProcAddress('glGetTexImage');
-
- gluBuild1DMipmaps := glbGetProcAddress('gluBuild1DMipmaps', GLU_LibHandle);
- gluBuild2DMipmaps := glbGetProcAddress('gluBuild2DMipmaps', GLU_LibHandle);
- finally
- glbFreeLibrary(GL_LibHandle);
- glbFreeLibrary(GLU_LibHandle);
- end;
- end;
- {$ENDIF}
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glbReadOpenGLExtensions;
- var
- {$IFDEF GLB_DELPHI}
- Context: HGLRC;
- {$ENDIF}
- Buffer: AnsiString;
- MajorVersion, MinorVersion: Integer;
-
- ///////////////////////////////////////////////////////////////////////////////////////////
- procedure TrimVersionString(aBuffer: AnsiString; out aMajor, aMinor: Integer);
- var
- Separator: Integer;
- begin
- aMinor := 0;
- aMajor := 0;
-
- Separator := Pos(AnsiString('.'), aBuffer);
- if (Separator > 1) and (Separator < Length(aBuffer)) and
- (aBuffer[Separator - 1] in ['0'..'9']) and
- (aBuffer[Separator + 1] in ['0'..'9']) then begin
-
- Dec(Separator);
- while (Separator > 0) and (aBuffer[Separator] in ['0'..'9']) do
- Dec(Separator);
-
- Delete(aBuffer, 1, Separator);
- Separator := Pos(AnsiString('.'), aBuffer) + 1;
-
- while (Separator <= Length(aBuffer)) and (AnsiChar(aBuffer[Separator]) in ['0'..'9']) do
- Inc(Separator);
-
- Delete(aBuffer, Separator, 255);
- Separator := Pos(AnsiString('.'), aBuffer);
-
- aMajor := StrToInt(Copy(String(aBuffer), 1, Separator - 1));
- aMinor := StrToInt(Copy(String(aBuffer), Separator + 1, 1));
- end;
- end;
-
- ///////////////////////////////////////////////////////////////////////////////////////////
- function CheckExtension(const Extension: AnsiString): Boolean;
- var
- ExtPos: Integer;
- begin
- ExtPos := Pos(Extension, Buffer);
- result := ExtPos > 0;
- if result then
- result := ((ExtPos + Length(Extension) - 1) = Length(Buffer)) or not (Buffer[ExtPos + Length(Extension)] in ['_', 'A'..'Z', 'a'..'z']);
- end;
-
- begin
- {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- InitOpenGLCS.Enter;
- try
- if not OpenGLInitialized then begin
- glbInitOpenGL;
- OpenGLInitialized := true;
- end;
- finally
- InitOpenGLCS.Leave;
- end;
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI}
- Context := wglGetCurrentContext;
- if (Context <> gLastContext) then begin
- gLastContext := Context;
- {$ENDIF}
-
- // Version
- Buffer := glGetString(GL_VERSION);
- TrimVersionString(Buffer, MajorVersion, MinorVersion);
-
- GL_VERSION_1_2 := false;
- GL_VERSION_1_3 := false;
- GL_VERSION_1_4 := false;
- GL_VERSION_2_0 := false;
- if MajorVersion = 1 then begin
- if MinorVersion >= 2 then
- GL_VERSION_1_2 := true;
-
- if MinorVersion >= 3 then
- GL_VERSION_1_3 := true;
-
- if MinorVersion >= 4 then
- GL_VERSION_1_4 := true;
- end else if MajorVersion >= 2 then begin
- GL_VERSION_1_2 := true;
- GL_VERSION_1_3 := true;
- GL_VERSION_1_4 := true;
- GL_VERSION_2_0 := true;
- end;
-
- // Extensions
- Buffer := glGetString(GL_EXTENSIONS);
- GL_ARB_texture_border_clamp := CheckExtension('GL_ARB_texture_border_clamp');
- GL_ARB_texture_non_power_of_two := CheckExtension('GL_ARB_texture_non_power_of_two');
- GL_ARB_texture_rectangle := CheckExtension('GL_ARB_texture_rectangle');
- GL_ARB_texture_mirrored_repeat := CheckExtension('GL_ARB_texture_mirrored_repeat');
- GL_EXT_texture_edge_clamp := CheckExtension('GL_EXT_texture_edge_clamp');
- GL_EXT_texture_filter_anisotropic := CheckExtension('GL_EXT_texture_filter_anisotropic');
- GL_EXT_texture_rectangle := CheckExtension('GL_EXT_texture_rectangle');
- GL_NV_texture_rectangle := CheckExtension('GL_NV_texture_rectangle');
- GL_IBM_texture_mirrored_repeat := CheckExtension('GL_IBM_texture_mirrored_repeat');
- GL_SGIS_generate_mipmap := CheckExtension('GL_SGIS_generate_mipmap');
-
- if GL_VERSION_1_3 then begin
- glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1D');
- glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2D');
- glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImage');
- end else begin
- glCompressedTexImage1D := glbGetProcAddress('glCompressedTexImage1DARB');
- glCompressedTexImage2D := glbGetProcAddress('glCompressedTexImage2DARB');
- glGetCompressedTexImage := glbGetProcAddress('glGetCompressedTexImageARB');
- end;
- {$IFDEF GLB_DELPHI}
- end;
- {$ENDIF}
- end;
- {$ENDIF}
-
- (* TODO GLB_DELPHI
- {$IFDEF GLB_DELPHI}
- function CreateGrayPalette: HPALETTE;
- var
- Idx: Integer;
- Pal: PLogPalette;
- begin
- GetMem(Pal, SizeOf(TLogPalette) + (SizeOf(TPaletteEntry) * 256));
-
- Pal.palVersion := $300;
- Pal.palNumEntries := 256;
-
- {$IFOPT R+}
- {$DEFINE GLB_TEMPRANGECHECK}
- {$R-}
- {$ENDIF}
-
- for Idx := 0 to 256 - 1 do begin
- Pal.palPalEntry[Idx].peRed := Idx;
- Pal.palPalEntry[Idx].peGreen := Idx;
- Pal.palPalEntry[Idx].peBlue := Idx;
- Pal.palPalEntry[Idx].peFlags := 0;
- end;
-
- {$IFDEF GLB_TEMPRANGECHECK}
- {$UNDEF GLB_TEMPRANGECHECK}
- {$R+}
- {$ENDIF}
-
- result := CreatePalette(Pal^);
-
- FreeMem(Pal);
- end;
- {$ENDIF}
- *)
-
- {$IFDEF GLB_SDL_IMAGE}
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // SDL Image Helper /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapRWseek(context: PSDL_RWops; offset: Integer; whence: Integer): Integer; cdecl;
- begin
- result := TStream(context^.unknown.data1).Seek(offset, whence);
- end;
-
- function glBitmapRWread(context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer): Integer; cdecl;
- begin
- result := TStream(context^.unknown.data1).Read(Ptr^, size * maxnum);
- end;
-
- function glBitmapRWwrite(context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer): Integer; cdecl;
- begin
- result := TStream(context^.unknown.data1).Write(Ptr^, size * num);
- end;
-
- function glBitmapRWclose(context: PSDL_RWops): Integer; cdecl;
- begin
- result := 0;
- end;
-
- function glBitmapCreateRWops(Stream: TStream): PSDL_RWops;
- begin
- result := SDL_AllocRW;
-
- if result = nil then
- raise EglBitmapException.Create('glBitmapCreateRWops - SDL_AllocRW failed.');
-
- result^.seek := glBitmapRWseek;
- result^.read := glBitmapRWread;
- result^.write := glBitmapRWwrite;
- result^.close := glBitmapRWclose;
- result^.unknown.data1 := Stream;
- end;
- {$ENDIF}
-
- (* TODO LoadFuncs
- function LoadTexture(Filename: String; var Texture: Cardinal{$IFDEF GLB_DELPHI}; LoadFromRes : Boolean; Instance: Cardinal{$ENDIF}): Boolean;
- var
- glBitmap: TglBitmap2D;
- begin
- result := false;
- Texture := 0;
-
- {$IFDEF GLB_DELPHI}
- if Instance = 0 then
- Instance := HInstance;
-
- if (LoadFromRes) then
- glBitmap := TglBitmap2D.CreateFromResourceName(Instance, FileName)
- else
- {$ENDIF}
- glBitmap := TglBitmap2D.Create(FileName);
-
- try
- glBitmap.DeleteTextureOnFree := false;
- glBitmap.FreeDataAfterGenTexture := false;
- glBitmap.GenTexture(true);
- if (glBitmap.ID > 0) then begin
- Texture := glBitmap.ID;
- result := true;
- end;
- finally
- glBitmap.Free;
- end;
- end;
-
- function LoadCubeMap(PositiveX, NegativeX, PositiveY, NegativeY, PositiveZ, NegativeZ: String; var Texture: Cardinal{$IFDEF GLB_DELPHI}; LoadFromRes : Boolean; Instance: Cardinal{$ENDIF}): Boolean;
- var
- CM: TglBitmapCubeMap;
- begin
- Texture := 0;
-
- {$IFDEF GLB_DELPHI}
- if Instance = 0 then
- Instance := HInstance;
- {$ENDIF}
-
- CM := TglBitmapCubeMap.Create;
- try
- CM.DeleteTextureOnFree := false;
-
- // Maps
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, PositiveX)
- else
- {$ENDIF}
- CM.LoadFromFile(PositiveX);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_X);
-
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, NegativeX)
- else
- {$ENDIF}
- CM.LoadFromFile(NegativeX);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_X);
-
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, PositiveY)
- else
- {$ENDIF}
- CM.LoadFromFile(PositiveY);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Y);
-
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, NegativeY)
- else
- {$ENDIF}
- CM.LoadFromFile(NegativeY);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y);
-
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, PositiveZ)
- else
- {$ENDIF}
- CM.LoadFromFile(PositiveZ);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Z);
-
- {$IFDEF GLB_DELPHI}
- if (LoadFromRes) then
- CM.LoadFromResource(Instance, NegativeZ)
- else
- {$ENDIF}
- CM.LoadFromFile(NegativeZ);
- CM.GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z);
-
- Texture := CM.ID;
- result := true;
- finally
- CM.Free;
- end;
- end;
-
- function LoadNormalMap(Size: Integer; var Texture: Cardinal): Boolean;
- var
- NM: TglBitmapNormalMap;
- begin
- Texture := 0;
-
- NM := TglBitmapNormalMap.Create;
- try
- NM.DeleteTextureOnFree := false;
- NM.GenerateNormalMap(Size);
-
- Texture := NM.ID;
- result := true;
- finally
- NM.Free;
- end;
- end;
- *)
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
- begin
- glBitmapDefaultDeleteTextureOnFree := aDeleteTextureOnFree;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
- begin
- glBitmapDefaultFreeDataAfterGenTextures := aFreeData;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultMipmap(const aValue: TglBitmapMipMap);
- begin
- glBitmapDefaultMipmap := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
- begin
- glBitmapDefaultFormat := aFormat;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultFilter(const aMin, aMag: Integer);
- begin
- glBitmapDefaultFilterMin := aMin;
- glBitmapDefaultFilterMag := aMag;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapSetDefaultWrap(const S: Cardinal = GL_CLAMP_TO_EDGE; const T: Cardinal = GL_CLAMP_TO_EDGE; const R: Cardinal = GL_CLAMP_TO_EDGE);
- begin
- glBitmapDefaultWrapS := S;
- glBitmapDefaultWrapT := T;
- glBitmapDefaultWrapR := R;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
- begin
- result := glBitmapDefaultDeleteTextureOnFree;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
- begin
- result := glBitmapDefaultFreeDataAfterGenTextures;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapGetDefaultMipmap: TglBitmapMipMap;
- begin
- result := glBitmapDefaultMipmap;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmapGetDefaultFormat: TglBitmapFormat;
- begin
- result := glBitmapDefaultFormat;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal);
- begin
- aMin := glBitmapDefaultFilterMin;
- aMag := glBitmapDefaultFilterMag;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal);
- begin
- S := glBitmapDefaultWrapS;
- T := glBitmapDefaultWrapT;
- R := glBitmapDefaultWrapR;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmapFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetRedMask: QWord;
- begin
- result := fRange.r shl fShift.r;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetGreenMask: QWord;
- begin
- result := fRange.g shl fShift.g;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetBlueMask: QWord;
- begin
- result := fRange.b shl fShift.b;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetAlphaMask: QWord;
- begin
- result := fRange.a shl fShift.a;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetComponents: Integer;
- var
- i: Integer;
- begin
- result := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- inc(result);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetSize(const aSize: TglBitmapPixelPosition): Integer;
- var
- w, h: Integer;
- begin
- if (ffX in aSize.Fields) or (ffY in aSize.Fields) then begin
- w := Max(1, aSize.X);
- h := Max(1, aSize.Y);
- result := GetSize(w, h);
- end else
- result := 0;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.GetSize(const aWidth, aHeight: Integer): Integer;
- begin
- result := 0;
- if (aWidth <= 0) or (aHeight <= 0) then
- exit;
- result := Ceil(aWidth * aHeight * fPixelSize);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.CreateMappingData: Pointer;
- begin
- result := nil;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TFormatDescriptor.FreeMappingData(var aMappingData: Pointer);
- begin
- //DUMMY
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.IsEmpty: Boolean;
- begin
- result := (fFormat = tfEmpty);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.HasAlpha: Boolean;
- begin
- result := (fRange.a > 0);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TFormatDescriptor.MaskMatch(const aRedMask, aGreenMask, aBlueMask, aAlphaMask: QWord): Boolean;
- begin
- result := false;
-
- if (aRedMask = 0) and (aGreenMask = 0) and (aBlueMask = 0) and (aAlphaMask = 0) then
- raise EglBitmapException.Create('FormatCheckFormat - All Masks are 0');
-
- if (aRedMask <> RedMask) then
- exit;
- if (aGreenMask <> GreenMask) then
- exit;
- if (aBlueMask <> BlueMask) then
- exit;
- if (aAlphaMask <> AlphaMask) then
- exit;
- result := true;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TFormatDescriptor.PreparePixel(out aPixel: TglBitmapPixelData);
- begin
- FillChar(aPixel{%H-}, SizeOf(aPixel), 0);
- aPixel.Data := fRange;
- aPixel.Range := fRange;
- aPixel.Format := fFormat;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TFormatDescriptor.Create;
- begin
- inherited Create;
-
- fFormat := tfEmpty;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfEmpty;
- fRGBInverted := tfEmpty;
- fUncompressed := tfEmpty;
- fPixelSize := 0.0;
- fIsCompressed := false;
-
- fglFormat := 0;
- fglInternalFormat := 0;
- fglDataFormat := 0;
-
- FillChar(fRange, 0, SizeOf(fRange));
- FillChar(fShift, 0, SizeOf(fShift));
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdAlpha_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdAlpha_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- aData^ := aPixel.Data.a;
- inc(aData);
- end;
-
- procedure TfdAlpha_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := 0;
- aPixel.Data.g := 0;
- aPixel.Data.b := 0;
- aPixel.Data.a := aData^;
- inc(aData^);
- end;
-
- constructor TfdAlpha_UB1.Create;
- begin
- inherited Create;
- fPixelSize := 1.0;
- fRange.a := $FF;
- fglFormat := GL_ALPHA;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdLuminance_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdLuminance_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- aData^ := LuminanceWeight(aPixel);
- inc(aData);
- end;
-
- procedure TfdLuminance_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := aData^;
- aPixel.Data.g := aData^;
- aPixel.Data.b := aData^;
- aPixel.Data.a := 0;
- inc(aData);
- end;
-
- constructor TfdLuminance_UB1.Create;
- begin
- inherited Create;
- fPixelSize := 1.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fglFormat := GL_LUMINANCE;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdUniversal_UB1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdUniversal_UB1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- var
- i: Integer;
- begin
- aData^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- aData^ := aData^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData);
- end;
-
- procedure TfdUniversal_UB1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- var
- i: Integer;
- begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (aData^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData);
- end;
-
- constructor TfdUniversal_UB1.Create;
- begin
- inherited Create;
- fPixelSize := 1.0;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdLuminanceAlpha_UB2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdLuminanceAlpha_UB2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
- end;
-
- procedure TfdLuminanceAlpha_UB2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
- end;
-
- constructor TfdLuminanceAlpha_UB2.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.a := $FF;
- fShift.a := 8;
- fglFormat := GL_LUMINANCE_ALPHA;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdRGB_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdRGB_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- aData^ := aPixel.Data.r;
- inc(aData);
- aData^ := aPixel.Data.g;
- inc(aData);
- aData^ := aPixel.Data.b;
- inc(aData);
- end;
-
- procedure TfdRGB_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := aData^;
- inc(aData);
- aPixel.Data.g := aData^;
- inc(aData);
- aPixel.Data.b := aData^;
- inc(aData);
- aPixel.Data.a := 0;
- end;
-
- constructor TfdRGB_UB3.Create;
- begin
- inherited Create;
- fPixelSize := 3.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fShift.r := 0;
- fShift.g := 8;
- fShift.b := 16;
- fglFormat := GL_RGB;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdBGR_UB3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdBGR_UB3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- aData^ := aPixel.Data.b;
- inc(aData);
- aData^ := aPixel.Data.g;
- inc(aData);
- aData^ := aPixel.Data.r;
- inc(aData);
- end;
-
- procedure TfdBGR_UB3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.b := aData^;
- inc(aData);
- aPixel.Data.g := aData^;
- inc(aData);
- aPixel.Data.r := aData^;
- inc(aData);
- aPixel.Data.a := 0;
- end;
-
- constructor TfdBGR_UB3.Create;
- begin
- fPixelSize := 3.0;
- fRange.r := $FF;
- fRange.g := $FF;
- fRange.b := $FF;
- fShift.r := 16;
- fShift.g := 8;
- fShift.b := 0;
- fglFormat := GL_BGR;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TdfRGBA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdRGBA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
- end;
-
- procedure TfdRGBA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
- end;
-
- constructor TfdRGBA_UB4.Create;
- begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FF;
- fShift.a := 24;
- fglFormat := GL_RGBA;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdBGRA_UB4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdBGRA_UB4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- aData^ := aPixel.Data.a;
- inc(aData);
- end;
-
- procedure TfdBGRA_UB4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := aData^;
- inc(aData);
- end;
-
- constructor TfdBGRA_UB4.Create;
- begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FF;
- fShift.a := 24;
- fglFormat := GL_BGRA;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdAlpha_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdAlpha_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
- end;
-
- procedure TfdAlpha_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := 0;
- aPixel.Data.g := 0;
- aPixel.Data.b := 0;
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
- end;
-
- constructor TfdAlpha_US1.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.a := $FFFF;
- fglFormat := GL_ALPHA;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdLuminance_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdLuminance_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PWord(aData)^ := LuminanceWeight(aPixel);
- inc(aData, 2);
- end;
-
- procedure TfdLuminance_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := PWord(aData)^;
- aPixel.Data.g := PWord(aData)^;
- aPixel.Data.b := PWord(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 2);
- end;
-
- constructor TfdLuminance_US1.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fglFormat := GL_LUMINANCE;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdUniversal_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdUniversal_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- var
- i: Integer;
- begin
- PWord(aData)^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- PWord(aData)^ := PWord(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData, 2);
- end;
-
- procedure TfdUniversal_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- var
- i: Integer;
- begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (PWord(aData)^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, 2);
- end;
-
- constructor TfdUniversal_US1.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdDepth_US1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdDepth_US1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PWord(aData)^ := DepthWeight(aPixel);
- inc(aData, 2);
- end;
-
- procedure TfdDepth_US1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := PWord(aData)^;
- aPixel.Data.g := PWord(aData)^;
- aPixel.Data.b := PWord(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 2);
- end;
-
- constructor TfdDepth_US1.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fglFormat := GL_DEPTH_COMPONENT;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdLuminanceAlpha_US2///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdLuminanceAlpha_US2.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
- end;
-
- procedure TfdLuminanceAlpha_US2.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
- end;
-
- constructor TfdLuminanceAlpha_US2.Create;
- begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.a := $FFFF;
- fShift.a := 16;
- fglFormat := GL_LUMINANCE_ALPHA;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdRGB_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdRGB_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PWord(aData)^ := aPixel.Data.r;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.g;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.b;
- inc(aData, 2);
- end;
-
- procedure TfdRGB_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.g := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.b := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.a := 0;
- end;
-
- constructor TfdRGB_US3.Create;
- begin
- inherited Create;
- fPixelSize := 6.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fShift.r := 0;
- fShift.g := 16;
- fShift.b := 32;
- fglFormat := GL_RGB;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdBGR_US3//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdBGR_US3.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PWord(aData)^ := aPixel.Data.b;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.g;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Data.r;
- inc(aData, 2);
- end;
-
- procedure TfdBGR_US3.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.b := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.g := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.r := PWord(aData)^;
- inc(aData, 2);
- aPixel.Data.a := 0;
- end;
-
- constructor TfdBGR_US3.Create;
- begin
- inherited Create;
- fPixelSize := 6.0;
- fRange.r := $FFFF;
- fRange.g := $FFFF;
- fRange.b := $FFFF;
- fShift.r := 32;
- fShift.g := 16;
- fShift.b := 0;
- fglFormat := GL_BGR;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdRGBA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdRGBA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
- end;
-
- procedure TfdRGBA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
- end;
-
- constructor TfdRGBA_US4.Create;
- begin
- inherited Create;
- fPixelSize := 8.0;
- fRange.a := $FFFF;
- fShift.a := 48;
- fglFormat := GL_RGBA;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdBGRA_US4/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdBGRA_US4.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- inherited Map(aPixel, aData, aMapData);
- PWord(aData)^ := aPixel.Data.a;
- inc(aData, 2);
- end;
-
- procedure TfdBGRA_US4.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- inherited Unmap(aData, aPixel, aMapData);
- aPixel.Data.a := PWord(aData)^;
- inc(aData, 2);
- end;
-
- constructor TfdBGRA_US4.Create;
- begin
- inherited Create;
- fPixelSize := 8.0;
- fRange.a := $FFFF;
- fShift.a := 48;
- fglFormat := GL_BGRA;
- fglDataFormat := GL_UNSIGNED_SHORT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdUniversal_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdUniversal_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- var
- i: Integer;
- begin
- PCardinal(aData)^ := 0;
- for i := 0 to 3 do
- if (fRange.arr[i] > 0) then
- PCardinal(aData)^ := PCardinal(aData)^ or ((aPixel.Data.arr[i] and fRange.arr[i]) shl fShift.arr[i]);
- inc(aData, 4);
- end;
-
- procedure TfdUniversal_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- var
- i: Integer;
- begin
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (PCardinal(aData)^ shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, 2);
- end;
-
- constructor TfdUniversal_UI1.Create;
- begin
- inherited Create;
- fPixelSize := 4.0;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdDepth_UI1////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdDepth_UI1.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- PCardinal(aData)^ := DepthWeight(aPixel);
- inc(aData, 4);
- end;
-
- procedure TfdDepth_UI1.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- aPixel.Data.r := PCardinal(aData)^;
- aPixel.Data.g := PCardinal(aData)^;
- aPixel.Data.b := PCardinal(aData)^;
- aPixel.Data.a := 0;
- inc(aData, 4);
- end;
-
- constructor TfdDepth_UI1.Create;
- begin
- inherited Create;
- fPixelSize := 4.0;
- fRange.r := $FFFFFFFF;
- fRange.g := $FFFFFFFF;
- fRange.b := $FFFFFFFF;
- fglFormat := GL_DEPTH_COMPONENT;
- fglDataFormat := GL_UNSIGNED_INT;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TfdAlpha4.Create;
- begin
- inherited Create;
- fFormat := tfAlpha4;
- fWithAlpha := tfAlpha4;
- fglInternalFormat := GL_ALPHA4;
- end;
-
- constructor TfdAlpha8.Create;
- begin
- inherited Create;
- fFormat := tfAlpha8;
- fWithAlpha := tfAlpha8;
- fglInternalFormat := GL_ALPHA8;
- end;
-
- constructor TfdAlpha12.Create;
- begin
- inherited Create;
- fFormat := tfAlpha12;
- fWithAlpha := tfAlpha12;
- fglInternalFormat := GL_ALPHA12;
- end;
-
- constructor TfdAlpha16.Create;
- begin
- inherited Create;
- fFormat := tfAlpha16;
- fWithAlpha := tfAlpha16;
- fglInternalFormat := GL_ALPHA16;
- end;
-
- constructor TfdLuminance4.Create;
- begin
- inherited Create;
- fFormat := tfLuminance4;
- fWithAlpha := tfLuminance4Alpha4;
- fWithoutAlpha := tfLuminance4;
- fglInternalFormat := GL_LUMINANCE4;
- end;
-
- constructor TfdLuminance8.Create;
- begin
- inherited Create;
- fFormat := tfLuminance8;
- fWithAlpha := tfLuminance8Alpha8;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE8;
- end;
-
- constructor TfdLuminance12.Create;
- begin
- inherited Create;
- fFormat := tfLuminance12;
- fWithAlpha := tfLuminance12Alpha12;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12;
- end;
-
- constructor TfdLuminance16.Create;
- begin
- inherited Create;
- fFormat := tfLuminance16;
- fWithAlpha := tfLuminance16Alpha16;
- fWithoutAlpha := tfLuminance16;
- fglInternalFormat := GL_LUMINANCE16;
- end;
-
- constructor TfdLuminance4Alpha4.Create;
- begin
- inherited Create;
- fFormat := tfLuminance4Alpha4;
- fWithAlpha := tfLuminance4Alpha4;
- fWithoutAlpha := tfLuminance4;
- fglInternalFormat := GL_LUMINANCE4_ALPHA4;
- end;
-
- constructor TfdLuminance6Alpha2.Create;
- begin
- inherited Create;
- fFormat := tfLuminance6Alpha2;
- fWithAlpha := tfLuminance6Alpha2;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE6_ALPHA2;
- end;
-
- constructor TfdLuminance8Alpha8.Create;
- begin
- inherited Create;
- fFormat := tfLuminance8Alpha8;
- fWithAlpha := tfLuminance8Alpha8;
- fWithoutAlpha := tfLuminance8;
- fglInternalFormat := GL_LUMINANCE8_ALPHA8;
- end;
-
- constructor TfdLuminance12Alpha4.Create;
- begin
- inherited Create;
- fFormat := tfLuminance12Alpha4;
- fWithAlpha := tfLuminance12Alpha4;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12_ALPHA4;
- end;
-
- constructor TfdLuminance12Alpha12.Create;
- begin
- inherited Create;
- fFormat := tfLuminance12Alpha12;
- fWithAlpha := tfLuminance12Alpha12;
- fWithoutAlpha := tfLuminance12;
- fglInternalFormat := GL_LUMINANCE12_ALPHA12;
- end;
-
- constructor TfdLuminance16Alpha16.Create;
- begin
- inherited Create;
- fFormat := tfLuminance16Alpha16;
- fWithAlpha := tfLuminance16Alpha16;
- fWithoutAlpha := tfLuminance16;
- fglInternalFormat := GL_LUMINANCE16_ALPHA16;
- end;
-
- constructor TfdR3G3B2.Create;
- begin
- inherited Create;
- fFormat := tfR3G3B2;
- fWithAlpha := tfRGBA2;
- fWithoutAlpha := tfR3G3B2;
- fRange.r := $7;
- fRange.g := $7;
- fRange.b := $3;
- fShift.r := 0;
- fShift.g := 3;
- fShift.b := 6;
- fglFormat := GL_RGB;
- fglInternalFormat := GL_R3_G3_B2;
- fglDataFormat := GL_UNSIGNED_BYTE_2_3_3_REV;
- end;
-
- constructor TfdRGB4.Create;
- begin
- inherited Create;
- fFormat := tfRGB4;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfRGB4;
- fRGBInverted := tfBGR4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fShift.r := 0;
- fShift.g := 4;
- fShift.b := 8;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end;
-
- constructor TfdR5G6B5.Create;
- begin
- inherited Create;
- fFormat := tfR5G6B5;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfR5G6B5;
- fRGBInverted := tfB5G6R5;
- fRange.r := $1F;
- fRange.g := $3F;
- fRange.b := $1F;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 11;
- fglFormat := GL_RGB;
- fglInternalFormat := GL_RGB565;
- fglDataFormat := GL_UNSIGNED_SHORT_5_6_5_REV;
- end;
-
- constructor TfdRGB5.Create;
- begin
- inherited Create;
- fFormat := tfRGB5;
- fWithAlpha := tfRGB5A1;
- fWithoutAlpha := tfRGB5;
- fRGBInverted := tfBGR5;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 10;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB5;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end;
-
- constructor TfdRGB8.Create;
- begin
- inherited Create;
- fFormat := tfRGB8;
- fWithAlpha := tfRGBA8;
- fWithoutAlpha := tfRGB8;
- fRGBInverted := tfBGR8;
- fglInternalFormat := GL_RGB8;
- end;
-
- constructor TfdRGB10.Create;
- begin
- inherited Create;
- fFormat := tfRGB10;
- fWithAlpha := tfRGB10A2;
- fWithoutAlpha := tfRGB10;
- fRGBInverted := tfBGR10;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fShift.r := 0;
- fShift.g := 10;
- fShift.b := 20;
- fglFormat := GL_RGBA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB10;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
- end;
-
- constructor TfdRGB12.Create;
- begin
- inherited Create;
- fFormat := tfRGB12;
- fWithAlpha := tfRGBA12;
- fWithoutAlpha := tfRGB12;
- fRGBInverted := tfBGR12;
- fglInternalFormat := GL_RGB12;
- end;
-
- constructor TfdRGB16.Create;
- begin
- inherited Create;
- fFormat := tfRGB16;
- fWithAlpha := tfRGBA16;
- fWithoutAlpha := tfRGB16;
- fRGBInverted := tfBGR16;
- fglInternalFormat := GL_RGB16;
- end;
-
- constructor TfdRGBA2.Create;
- begin
- inherited Create;
- fFormat := tfRGBA2;
- fWithAlpha := tfRGBA2;
- fWithoutAlpha := tfR3G3B2;
- fRGBInverted := tfBGRA2;
- fglInternalFormat := GL_RGBA2;
- end;
-
- constructor TfdRGBA4.Create;
- begin
- inherited Create;
- fFormat := tfRGBA4;
- fWithAlpha := tfRGBA4;
- fWithoutAlpha := tfRGB4;
- fRGBInverted := tfBGRA4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $F;
- fShift.r := 0;
- fShift.g := 4;
- fShift.b := 8;
- fShift.a := 12;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGBA4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end;
-
- constructor TfdRGB5A1.Create;
- begin
- inherited Create;
- fFormat := tfRGB5A1;
- fWithAlpha := tfRGB5A1;
- fWithoutAlpha := tfRGB5;
- fRGBInverted := tfBGR5A1;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $01;
- fShift.r := 0;
- fShift.g := 5;
- fShift.b := 10;
- fShift.a := 15;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGB5_A1;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end;
-
- constructor TfdRGBA8.Create;
- begin
- inherited Create;
- fFormat := tfRGBA8;
- fWithAlpha := tfRGBA8;
- fWithoutAlpha := tfRGB8;
- fRGBInverted := tfBGRA8;
- fglInternalFormat := GL_RGBA8;
- end;
-
- constructor TfdRGB10A2.Create;
- begin
- inherited Create;
- fFormat := tfRGB10A2;
- fWithAlpha := tfRGB10A2;
- fWithoutAlpha := tfRGB10;
- fRGBInverted := tfBGR10A2;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $003;
- fShift.r := 0;
- fShift.g := 10;
- fShift.b := 20;
- fShift.a := 30;
- fglFormat := GL_RGBA;
- fglInternalFormat := GL_RGB10_A2;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
- end;
-
- constructor TfdRGBA12.Create;
- begin
- inherited Create;
- fFormat := tfRGBA12;
- fWithAlpha := tfRGBA12;
- fWithoutAlpha := tfRGB12;
- fRGBInverted := tfBGRA12;
- fglInternalFormat := GL_RGBA12;
- end;
-
- constructor TfdRGBA16.Create;
- begin
- inherited Create;
- fFormat := tfRGBA16;
- fWithAlpha := tfRGBA16;
- fWithoutAlpha := tfRGB16;
- fRGBInverted := tfBGRA16;
- fglInternalFormat := GL_RGBA16;
- end;
-
- constructor TfdBGR4.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fFormat := tfBGR4;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGB4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $0;
- fShift.r := 8;
- fShift.g := 4;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TfdB5G6R5.Create;
- begin
- inherited Create;
- fFormat := tfB5G6R5;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfB5G6R5;
- fRGBInverted := tfR5G6B5;
- fRange.r := $1F;
- fRange.g := $3F;
- fRange.b := $1F;
- fShift.r := 11;
- fShift.g := 5;
- fShift.b := 0;
- fglFormat := GL_RGB; //B5G6R5 is only possible as R5G6B5 -> use reverted dataformat
- fglInternalFormat := GL_RGB8;
- fglDataFormat := GL_UNSIGNED_SHORT_5_6_5;
- end;
-
- constructor TfdBGR5.Create;
- begin
- inherited Create;
- fPixelSize := 2.0;
- fFormat := tfBGR5;
- fWithAlpha := tfBGR5A1;
- fWithoutAlpha := tfBGR5;
- fRGBInverted := tfRGB5;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $00;
- fShift.r := 10;
- fShift.g := 5;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB5;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end;
-
- constructor TfdBGR8.Create;
- begin
- inherited Create;
- fFormat := tfBGR8;
- fWithAlpha := tfBGRA8;
- fWithoutAlpha := tfBGR8;
- fRGBInverted := tfRGB8;
- fglInternalFormat := GL_RGB8;
- end;
-
- constructor TfdBGR10.Create;
- begin
- inherited Create;
- fFormat := tfBGR10;
- fWithAlpha := tfBGR10A2;
- fWithoutAlpha := tfBGR10;
- fRGBInverted := tfRGB10;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $000;
- fShift.r := 20;
- fShift.g := 10;
- fShift.b := 0;
- fShift.a := 0;
- fglFormat := GL_BGRA; //GL_INVALID_OPERATION if not GL_BGRA or GL_RGBA
- fglInternalFormat := GL_RGB10;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
- end;
-
- constructor TfdBGR12.Create;
- begin
- inherited Create;
- fFormat := tfBGR12;
- fWithAlpha := tfBGRA12;
- fWithoutAlpha := tfBGR12;
- fRGBInverted := tfRGB12;
- fglInternalFormat := GL_RGB12;
- end;
-
- constructor TfdBGR16.Create;
- begin
- inherited Create;
- fFormat := tfBGR16;
- fWithAlpha := tfBGRA16;
- fWithoutAlpha := tfBGR16;
- fRGBInverted := tfRGB16;
- fglInternalFormat := GL_RGB16;
- end;
-
- constructor TfdBGRA2.Create;
- begin
- inherited Create;
- fFormat := tfBGRA2;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGBA2;
- fglInternalFormat := GL_RGBA2;
- end;
-
- constructor TfdBGRA4.Create;
- begin
- inherited Create;
- fFormat := tfBGRA4;
- fWithAlpha := tfBGRA4;
- fWithoutAlpha := tfBGR4;
- fRGBInverted := tfRGBA4;
- fRange.r := $F;
- fRange.g := $F;
- fRange.b := $F;
- fRange.a := $F;
- fShift.r := 8;
- fShift.g := 4;
- fShift.b := 0;
- fShift.a := 12;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGBA4;
- fglDataFormat := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end;
-
- constructor TfdBGR5A1.Create;
- begin
- inherited Create;
- fFormat := tfBGR5A1;
- fWithAlpha := tfBGR5A1;
- fWithoutAlpha := tfBGR5;
- fRGBInverted := tfRGB5A1;
- fRange.r := $1F;
- fRange.g := $1F;
- fRange.b := $1F;
- fRange.a := $01;
- fShift.r := 10;
- fShift.g := 5;
- fShift.b := 0;
- fShift.a := 15;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGB5_A1;
- fglDataFormat := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end;
-
- constructor TfdBGRA8.Create;
- begin
- inherited Create;
- fFormat := tfBGRA8;
- fWithAlpha := tfBGRA8;
- fWithoutAlpha := tfBGR8;
- fRGBInverted := tfRGBA8;
- fglInternalFormat := GL_RGBA8;
- end;
-
- constructor TfdBGR10A2.Create;
- begin
- inherited Create;
- fFormat := tfBGR10A2;
- fWithAlpha := tfBGR10A2;
- fWithoutAlpha := tfBGR10;
- fRGBInverted := tfRGB10A2;
- fRange.r := $3FF;
- fRange.g := $3FF;
- fRange.b := $3FF;
- fRange.a := $003;
- fShift.r := 20;
- fShift.g := 10;
- fShift.b := 0;
- fShift.a := 30;
- fglFormat := GL_BGRA;
- fglInternalFormat := GL_RGB10_A2;
- fglDataFormat := GL_UNSIGNED_INT_2_10_10_10_REV;
- end;
-
- constructor TfdBGRA12.Create;
- begin
- inherited Create;
- fFormat := tfBGRA12;
- fWithAlpha := tfBGRA12;
- fWithoutAlpha := tfBGR12;
- fRGBInverted := tfRGBA12;
- fglInternalFormat := GL_RGBA12;
- end;
-
- constructor TfdBGRA16.Create;
- begin
- inherited Create;
- fFormat := tfBGRA16;
- fWithAlpha := tfBGRA16;
- fWithoutAlpha := tfBGR16;
- fRGBInverted := tfRGBA16;
- fglInternalFormat := GL_RGBA16;
- end;
-
- constructor TfdDepth16.Create;
- begin
- inherited Create;
- fFormat := tfDepth16;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth16;
- fglInternalFormat := GL_DEPTH_COMPONENT16;
- end;
-
- constructor TfdDepth24.Create;
- begin
- inherited Create;
- fFormat := tfDepth24;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth24;
- fglInternalFormat := GL_DEPTH_COMPONENT24;
- end;
-
- constructor TfdDepth32.Create;
- begin
- inherited Create;
- fFormat := tfDepth32;
- fWithAlpha := tfEmpty;
- fWithoutAlpha := tfDepth32;
- fglInternalFormat := GL_DEPTH_COMPONENT32;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdS3tcDtx1RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdS3tcDtx1RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- procedure TfdS3tcDtx1RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- constructor TfdS3tcDtx1RGBA.Create;
- begin
- inherited Create;
- fFormat := tfS3tcDtx1RGBA;
- fWithAlpha := tfS3tcDtx1RGBA;
- fUncompressed := tfRGB5A1;
- fPixelSize := 0.5;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdS3tcDtx3RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdS3tcDtx3RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- procedure TfdS3tcDtx3RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- constructor TfdS3tcDtx3RGBA.Create;
- begin
- inherited Create;
- fFormat := tfS3tcDtx3RGBA;
- fWithAlpha := tfS3tcDtx3RGBA;
- fUncompressed := tfRGBA8;
- fPixelSize := 1.0;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TfdS3tcDtx5RGBA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TfdS3tcDtx5RGBA.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- procedure TfdS3tcDtx5RGBA.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- begin
- raise EglBitmapException.Create('mapping for compressed formats is not supported');
- end;
-
- constructor TfdS3tcDtx5RGBA.Create;
- begin
- inherited Create;
- fFormat := tfS3tcDtx3RGBA;
- fWithAlpha := tfS3tcDtx3RGBA;
- fUncompressed := tfRGBA8;
- fPixelSize := 1.0;
- fIsCompressed := true;
- fglFormat := GL_COMPRESSED_RGBA;
- fglInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
- fglDataFormat := GL_UNSIGNED_BYTE;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TFormatDescriptor///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- class procedure TFormatDescriptor.Init;
- begin
- if not Assigned(FormatDescriptorCS) then
- FormatDescriptorCS := TCriticalSection.Create;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- class function TFormatDescriptor.Get(const aFormat: TglBitmapFormat): TFormatDescriptor;
- begin
- FormatDescriptorCS.Enter;
- try
- result := FormatDescriptors[aFormat];
- if not Assigned(result) then begin
- result := FORMAT_DESCRIPTOR_CLASSES[aFormat].Create;
- FormatDescriptors[aFormat] := result;
- end;
- finally
- FormatDescriptorCS.Leave;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- class function TFormatDescriptor.GetWithAlpha(const aFormat: TglBitmapFormat): TFormatDescriptor;
- begin
- result := Get(Get(aFormat).WithAlpha);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- class procedure TFormatDescriptor.Clear;
- var
- f: TglBitmapFormat;
- begin
- FormatDescriptorCS.Enter;
- try
- for f := low(FormatDescriptors) to high(FormatDescriptors) do
- FreeAndNil(FormatDescriptors[f]);
- finally
- FormatDescriptorCS.Leave;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- class procedure TFormatDescriptor.Finalize;
- begin
- Clear;
- FreeAndNil(FormatDescriptorCS);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TBitfieldFormat/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.SetRedMask(const aValue: QWord);
- begin
- Update(aValue, fRange.r, fShift.r);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.SetGreenMask(const aValue: QWord);
- begin
- Update(aValue, fRange.g, fShift.g);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.SetBlueMask(const aValue: QWord);
- begin
- Update(aValue, fRange.b, fShift.b);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.SetAlphaMask(const aValue: QWord);
- begin
- Update(aValue, fRange.a, fShift.a);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.Update(aMask: QWord; out aRange: Cardinal; out
- aShift: Byte);
- begin
- aShift := 0;
- aRange := 0;
- if (aMask = 0) then
- exit;
- while (aMask > 0) and ((aMask and 1) = 0) do begin
- inc(aShift);
- aMask := aMask shr 1;
- end;
- aRange := 1;
- while (aMask > 0) do begin
- aRange := aRange shl 1;
- aMask := aMask shr 1;
- end;
- dec(aRange);
-
- fPixelSize := Round(GetTopMostBit(RedMask or GreenMask or BlueMask or AlphaMask) / 8);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- var
- data: QWord;
- s: Integer;
- begin
- data :=
- ((aPixel.Data.r and fRange.r) shl fShift.r) or
- ((aPixel.Data.g and fRange.g) shl fShift.g) or
- ((aPixel.Data.b and fRange.b) shl fShift.b) or
- ((aPixel.Data.a and fRange.a) shl fShift.a);
- s := Round(fPixelSize);
- case s of
- 1: aData^ := data;
- 2: PWord(aData)^ := data;
- 4: PCardinal(aData)^ := data;
- 8: PQWord(aData)^ := data;
- else
- raise EglBitmapException.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
- end;
- inc(aData, s);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpBitfieldFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- var
- data: QWord;
- s, i: Integer;
- begin
- s := Round(fPixelSize);
- case s of
- 1: data := aData^;
- 2: data := PWord(aData)^;
- 4: data := PCardinal(aData)^;
- 8: data := PQWord(aData)^;
- else
- raise EglBitmapException.CreateFmt('invalid pixel size: %.1f', [fPixelSize]);
- end;
- for i := 0 to 3 do
- aPixel.Data.arr[i] := (data shr fShift.arr[i]) and fRange.arr[i];
- inc(aData, s);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TColorTableFormat///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpColorTableFormat.CreateColorTable;
- var
- i: Integer;
- begin
- if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
- raise EglBitmapException.Create(UNSUPPORTED_FORMAT);
-
- if (Format = tfLuminance4) then
- SetLength(fColorTable, 16)
- else
- SetLength(fColorTable, 256);
-
- case Format of
- tfLuminance4: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := 16 * i;
- fColorTable[i].g := 16 * i;
- fColorTable[i].b := 16 * i;
- fColorTable[i].a := 0;
- end;
- end;
-
- tfLuminance8: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := i;
- fColorTable[i].g := i;
- fColorTable[i].b := i;
- fColorTable[i].a := 0;
- end;
- end;
-
- tfR3G3B2: begin
- for i := 0 to High(fColorTable) do begin
- fColorTable[i].r := Round(((i shr Shift.r) and Range.r) / Range.r * 255);
- fColorTable[i].g := Round(((i shr Shift.g) and Range.g) / Range.g * 255);
- fColorTable[i].b := Round(((i shr Shift.b) and Range.b) / Range.b * 255);
- fColorTable[i].a := 0;
- end;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpColorTableFormat.Map(const aPixel: TglBitmapPixelData; var aData: PByte; var aMapData: Pointer);
- var
- d: Byte;
- begin
- if not (Format in [tfLuminance4, tfLuminance8, tfR3G3B2]) then
- raise EglBitmapException.Create(UNSUPPORTED_FORMAT);
-
- case Format of
- tfLuminance4: begin
- if (aMapData = nil) then
- aData^ := 0;
- d := LuminanceWeight(aPixel) and Range.r;
- aData^ := aData^ or (d shl (4 - {%H-}PtrUInt(aMapData)));
- inc(aMapData, 4);
- if ({%H-}PtrUInt(aMapData) >= 8) then begin
- inc(aData);
- aMapData := nil;
- end;
- end;
-
- tfLuminance8: begin
- aData^ := LuminanceWeight(aPixel) and Range.r;
- inc(aData);
- end;
-
- tfR3G3B2: begin
- aData^ := Round(
- ((aPixel.Data.r and Range.r) shl Shift.r) or
- ((aPixel.Data.g and Range.g) shl Shift.g) or
- ((aPixel.Data.b and Range.b) shl Shift.b));
- inc(aData);
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TbmpColorTableFormat.Unmap(var aData: PByte; out aPixel: TglBitmapPixelData; var aMapData: Pointer);
- var
- idx: QWord;
- s: Integer;
- bits: Byte;
- f: Single;
- begin
- s := Trunc(fPixelSize);
- f := fPixelSize - s;
- bits := Round(8 * f);
- case s of
- 0: idx := (aData^ shr (8 - bits - {%H-}PtrUInt(aMapData))) and ((1 shl bits) - 1);
- 1: idx := aData^;
- 2: idx := PWord(aData)^;
- 4: idx := PCardinal(aData)^;
- 8: idx := PQWord(aData)^;
- else
- raise EglBitmapException.CreateFmt('invalid pixel size: %.3f', [fPixelSize]);
- end;
- if (idx >= Length(fColorTable)) then
- raise EglBitmapException.CreateFmt('invalid color index: %d', [idx]);
- with fColorTable[idx] do begin
- aPixel.Data.r := r;
- aPixel.Data.g := g;
- aPixel.Data.b := b;
- aPixel.Data.a := a;
- end;
- inc(aMapData, bits);
- if ({%H-}PtrUInt(aMapData) >= 8) then begin
- inc(aData, 1);
- dec(aMapData, 8);
- end;
- inc(aData, s);
- end;
-
- destructor TbmpColorTableFormat.Destroy;
- begin
- SetLength(fColorTable, 0);
- inherited Destroy;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmap - Helper//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapConvertPixel(var aPixel: TglBitmapPixelData; const aSourceFD, aDestFD: TFormatDescriptor);
- var
- i: Integer;
- begin
- for i := 0 to 3 do begin
- if (aSourceFD.Range.arr[i] <> aDestFD.Range.arr[i]) then begin
- if (aSourceFD.Range.arr[i] > 0) then
- aPixel.Data.arr[i] := Round(aPixel.Data.arr[i] / aSourceFD.Range.arr[i] * aDestFD.Range.arr[i])
- else
- aPixel.Data.arr[i] := aDestFD.Range.arr[i];
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapConvertCopyFunc(var aFuncRec: TglBitmapFunctionRec);
- begin
- with aFuncRec do begin
- if (Source.Range.r > 0) then
- Dest.Data.r := Source.Data.r;
- if (Source.Range.g > 0) then
- Dest.Data.g := Source.Data.g;
- if (Source.Range.b > 0) then
- Dest.Data.b := Source.Data.b;
- if (Source.Range.a > 0) then
- Dest.Data.a := Source.Data.a;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapConvertCalculateRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
- var
- i: Integer;
- begin
- with aFuncRec do begin
- for i := 0 to 3 do
- if (Source.Range.arr[i] > 0) then
- Dest.Data.arr[i] := Round(Dest.Range.arr[i] * Source.Data.arr[i] / Source.Range.arr[i]);
- end;
- end;
-
- type
- TShiftData = packed record
- case Integer of
- 0: (r, g, b, a: SmallInt);
- 1: (arr: array[0..3] of SmallInt);
- end;
- PShiftData = ^TShiftData;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapConvertShiftRGBAFunc(var aFuncRec: TglBitmapFunctionRec);
- var
- i: Integer;
- begin
- with aFuncRec do
- for i := 0 to 3 do
- if (Source.Range.arr[i] > 0) then
- Dest.Data.arr[i] := Source.Data.arr[i] shr PShiftData(Args)^.arr[i];
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapInvertFunc(var aFuncRec: TglBitmapFunctionRec);
- begin
- with aFuncRec do begin
- Dest.Data := Source.Data;
- if ({%H-}PtrUInt(Args) and $1 > 0) then begin
- Dest.Data.r := Dest.Data.r xor Dest.Range.r;
- Dest.Data.g := Dest.Data.g xor Dest.Range.g;
- Dest.Data.b := Dest.Data.b xor Dest.Range.b;
- end;
- if ({%H-}PtrUInt(Args) and $2 > 0) then begin
- Dest.Data.a := Dest.Data.a xor Dest.Range.a;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapFillWithColorFunc(var aFuncRec: TglBitmapFunctionRec);
- var
- i: Integer;
- begin
- with aFuncRec do begin
- for i := 0 to 3 do
- Dest.Data.arr[i] := PglBitmapPixelData(Args)^.Data.arr[i];
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- var
- Temp: Single;
- begin
- with FuncRec do begin
- if (FuncRec.Args = nil) then begin //source has no alpha
- Temp :=
- Source.Data.r / Source.Range.r * ALPHA_WEIGHT_R +
- Source.Data.g / Source.Range.g * ALPHA_WEIGHT_G +
- Source.Data.b / Source.Range.b * ALPHA_WEIGHT_B;
- Dest.Data.a := Round(Dest.Range.a * Temp);
- end else
- Dest.Data.a := Round(Source.Data.a / Source.Range.a * Dest.Range.a);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapColorKeyAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- type
- PglBitmapPixelData = ^TglBitmapPixelData;
- begin
- with FuncRec do begin
- Dest.Data.r := Source.Data.r;
- Dest.Data.g := Source.Data.g;
- Dest.Data.b := Source.Data.b;
-
- with PglBitmapPixelData(Args)^ do
- if ((Dest.Data.r <= Data.r) and (Dest.Data.r >= Range.r) and
- (Dest.Data.g <= Data.g) and (Dest.Data.g >= Range.g) and
- (Dest.Data.b <= Data.b) and (Dest.Data.b >= Range.b)) then
- Dest.Data.a := 0
- else
- Dest.Data.a := Dest.Range.a;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapValueAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- Dest.Data.r := Source.Data.r;
- Dest.Data.g := Source.Data.g;
- Dest.Data.b := Source.Data.b;
- Dest.Data.a := PCardinal(Args)^;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure SwapRGB(aData: PByte; aWidth: Integer; const aHasAlpha: Boolean);
- type
- PRGBPix = ^TRGBPix;
- TRGBPix = array [0..2] of byte;
- var
- Temp: Byte;
- begin
- while aWidth > 0 do begin
- Temp := PRGBPix(aData)^[0];
- PRGBPix(aData)^[0] := PRGBPix(aData)^[2];
- PRGBPix(aData)^[2] := Temp;
-
- if aHasAlpha then
- Inc(aData, 4)
- else
- Inc(aData, 3);
- dec(aWidth);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmap - PROTECTED///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.GetWidth: Integer;
- begin
- if (ffX in fDimension.Fields) then
- result := fDimension.X
- else
- result := -1;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.GetHeight: Integer;
- begin
- if (ffY in fDimension.Fields) then
- result := fDimension.Y
- else
- result := -1;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.GetFileWidth: Integer;
- begin
- result := Max(1, Width);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.GetFileHeight: Integer;
- begin
- result := Max(1, Height);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetCustomData(const aValue: Pointer);
- begin
- if fCustomData = aValue then
- exit;
- fCustomData := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetCustomName(const aValue: String);
- begin
- if fCustomName = aValue then
- exit;
- fCustomName := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetCustomNameW(const aValue: WideString);
- begin
- if fCustomNameW = aValue then
- exit;
- fCustomNameW := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetDeleteTextureOnFree(const aValue: Boolean);
- begin
- if fDeleteTextureOnFree = aValue then
- exit;
- fDeleteTextureOnFree := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetFormat(const aValue: TglBitmapFormat);
- begin
- if fFormat = aValue then
- exit;
- if TFormatDescriptor.Get(Format).PixelSize <> TFormatDescriptor.Get(aValue).PixelSize then
- raise EglBitmapUnsupportedFormat.Create('SetFormat');
- SetDataPointer(Data, aValue, Width, Height);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetFreeDataAfterGenTexture(const aValue: Boolean);
- begin
- if fFreeDataAfterGenTexture = aValue then
- exit;
- fFreeDataAfterGenTexture := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetID(const aValue: Cardinal);
- begin
- if fID = aValue then
- exit;
- fID := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetMipMap(const aValue: TglBitmapMipMap);
- begin
- if fMipMap = aValue then
- exit;
- fMipMap := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetTarget(const aValue: Cardinal);
- begin
- if fTarget = aValue then
- exit;
- fTarget := aValue;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetAnisotropic(const aValue: Integer);
- var
- MaxAnisotropic: Integer;
- begin
- fAnisotropic := aValue;
- if (ID > 0) then begin
- if GL_EXT_texture_filter_anisotropic then begin
- if fAnisotropic > 0 then begin
- Bind(false);
- glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, @MaxAnisotropic);
- if aValue > MaxAnisotropic then
- fAnisotropic := MaxAnisotropic;
- glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
- end;
- end else begin
- fAnisotropic := 0;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.CreateID;
- begin
- if (ID <> 0) then
- glDeleteTextures(1, @fID);
- glGenTextures(1, @fID);
- Bind(false);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetupParameters(out aBuildWithGlu: Boolean);
- begin
- // Set Up Parameters
- SetWrap(fWrapS, fWrapT, fWrapR);
- SetFilter(fFilterMin, fFilterMag);
- SetAnisotropic(fAnisotropic);
- SetBorderColor(fBorderColor[0], fBorderColor[1], fBorderColor[2], fBorderColor[3]);
-
- // Mip Maps Generation Mode
- aBuildWithGlu := false;
- if (MipMap = mmMipmap) then begin
- if (GL_VERSION_1_4 or GL_SGIS_generate_mipmap) then
- glTexParameteri(Target, GL_GENERATE_MIPMAP, GL_TRUE)
- else
- aBuildWithGlu := true;
- end else if (MipMap = mmMipmapGlu) then
- aBuildWithGlu := true;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetDataPointer(const aData: PByte; const aFormat: TglBitmapFormat;
- const aWidth: Integer; const aHeight: Integer);
- var
- s: Single;
- begin
- if (Data <> aData) then begin
- if (Assigned(Data)) then
- FreeMem(Data);
- fData := aData;
- end;
-
- FillChar(fDimension, SizeOf(fDimension), 0);
- if not Assigned(fData) then begin
- fFormat := tfEmpty;
- fPixelSize := 0;
- fRowSize := 0;
- end else begin
- if aWidth <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffX];
- fDimension.X := aWidth;
- end;
-
- if aHeight <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffY];
- fDimension.Y := aHeight;
- end;
-
- s := TFormatDescriptor.Get(aFormat).PixelSize;
- fFormat := aFormat;
- fPixelSize := Ceil(s);
- fRowSize := Ceil(s * aWidth);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.FlipHorz: Boolean;
- begin
- result := false;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.FlipVert: Boolean;
- begin
- result := false;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmap - PUBLIC//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.AfterConstruction;
- begin
- inherited AfterConstruction;
-
- fID := 0;
- fTarget := 0;
- fIsResident := false;
-
- fFormat := glBitmapGetDefaultFormat;
- fMipMap := glBitmapDefaultMipmap;
- fFreeDataAfterGenTexture := glBitmapGetDefaultFreeDataAfterGenTexture;
- fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
-
- glBitmapGetDefaultFilter (fFilterMin, fFilterMag);
- glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.BeforeDestruction;
- begin
- SetDataPointer(nil, tfEmpty);
- if (fID > 0) and fDeleteTextureOnFree then
- glDeleteTextures(1, @fID);
- inherited BeforeDestruction;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.LoadFromFile(const aFilename: String);
- var
- fs: TFileStream;
- begin
- if not FileExists(aFilename) then
- raise EglBitmapException.Create('file does not exist: ' + aFilename);
- fFilename := aFilename;
- fs := TFileStream.Create(fFilename, fmOpenRead);
- try
- fs.Position := 0;
- LoadFromStream(fs);
- finally
- fs.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.LoadFromStream(const aStream: TStream);
- begin
- {$IFDEF GLB_SUPPORT_PNG_READ}
- if not LoadPNG(aStream) then
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- if not LoadJPEG(aStream) then
- {$ENDIF}
- if not LoadDDS(aStream) then
- if not LoadTGA(aStream) then
- if not LoadBMP(aStream) then
- raise EglBitmapException.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aArgs: Pointer);
- var
- tmpData: PByte;
- size: Integer;
- begin
- size := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(tmpData, size);
- try
- FillChar(tmpData^, size, #$FF);
- SetDataPointer(tmpData, aFormat, aSize.X, aSize.Y);
- except
- FreeMem(tmpData);
- raise;
- end;
- AddFunc(Self, aFunc, false, Format, aArgs);
- end;
-
- {$IFDEF GLB_DELPHI}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.LoadFromResource(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil);
- var
- rs: TResourceStream;
- TempPos: Integer;
- ResTypeStr: String;
- TempResType: PChar;
- begin
- if not Assigned(ResType) then begin
- TempPos := Pos('.', Resource);
- ResTypeStr := UpperCase(Copy(Resource, TempPos + 1, Length(Resource) - TempPos));
- Resource := UpperCase(Copy(Resource, 0, TempPos -1));
- TempResType := PChar(ResTypeStr);
- end else
- TempResType := ResType
-
- rs := TResourceStream.Create(Instance, Resource, TempResType);
- try
- LoadFromStream(rs);
- finally
- rs.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.LoadFromResourceID(const sInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
- var
- rs: TResourceStream;
- begin
- rs := TResourceStream.CreateFromID(Instance, ResourceID, ResType);
- try
- LoadFromStream(rs);
- finally
- rs.Free;
- end;
- end;
- {$ENDIF}
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
- var
- fs: TFileStream;
- begin
- fs := TFileStream.Create(aFileName, fmCreate);
- try
- fs.Position := 0;
- SaveToStream(fs, aFileType);
- finally
- fs.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType);
- begin
- case aFileType of
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- ftPNG: SavePng(aStream);
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- ftJPEG: SaveJPEG(aStream);
- {$ENDIF}
- ftDDS: SaveDDS(aStream);
- ftTGA: SaveTGA(aStream);
- ftBMP: SaveBMP(aStream);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddFunc(const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; const aArgs: Pointer): Boolean;
- begin
- result := AddFunc(Self, aFunc, aCreateTemp, Format, aArgs);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; aCreateTemp: Boolean;
- const aFormat: TglBitmapFormat; const aArgs: Pointer): Boolean;
- var
- DestData, TmpData, SourceData: pByte;
- TempHeight, TempWidth: Integer;
- SourceFD, DestFD: TFormatDescriptor;
- SourceMD, DestMD: Pointer;
-
- FuncRec: TglBitmapFunctionRec;
- begin
- Assert(Assigned(Data));
- Assert(Assigned(aSource));
- Assert(Assigned(aSource.Data));
-
- result := false;
- if Assigned(aSource.Data) and ((aSource.Height > 0) or (aSource.Width > 0)) then begin
- SourceFD := TFormatDescriptor.Get(aSource.Format);
- DestFD := TFormatDescriptor.Get(aFormat);
-
- // inkompatible Formats so CreateTemp
- if (SourceFD.PixelSize <> DestFD.PixelSize) then
- aCreateTemp := true;
-
- // Values
- TempHeight := Max(1, aSource.Height);
- TempWidth := Max(1, aSource.Width);
-
- FuncRec.Sender := Self;
- FuncRec.Args := aArgs;
-
- TmpData := nil;
- if aCreateTemp then begin
- GetMem(TmpData, TFormatDescriptor.Get(aFormat).GetSize(TempWidth, TempHeight));
- DestData := TmpData;
- end else
- DestData := Data;
-
- try
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
-
- SourceMD := SourceFD.CreateMappingData;
- DestMD := DestFD.CreateMappingData;
-
- FuncRec.Size := aSource.Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- try
- SourceData := aSource.Data;
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
- aFunc(FuncRec);
- DestFD.Map(FuncRec.Dest, DestData, DestMD);
- inc(FuncRec.Position.X);
- end;
- inc(FuncRec.Position.Y);
- end;
-
- // Updating Image or InternalFormat
- if aCreateTemp then
- SetDataPointer(TmpData, aFormat, aSource.Width, aSource.Height)
- else if (aFormat <> fFormat) then
- Format := aFormat;
-
- result := true;
- finally
- SourceFD.FreeMappingData(SourceMD);
- DestFD.FreeMappingData(DestMD);
- end;
- except
- if aCreateTemp then
- FreeMem(TmpData);
- raise;
- end;
- end;
- end;
-
- {$IFDEF GLB_SDL}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignToSurface(out aSurface: PSDL_Surface): Boolean;
- var
- Row, RowSize: Integer;
- SourceData, TmpData: PByte;
- TempDepth: Integer;
- FormatDesc: TFormatDescriptor;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface.pixels;
- Inc(result, Row * RowSize);
- end;
-
- begin
- result := false;
-
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then
- raise EglBitmapUnsupportedFormat.Create('AssignToSurface');
-
- 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('AssignToSurface');
- end;
-
- aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, TempDepth,
- FormatDesc.RedMask, FormatDesc.GreenMask, FormatDesc.BlueMask, FormatDesc.AlphaMask);
- SourceData := Data;
- RowSize := FormatDesc.GetSize(FileWidth, 1);
-
- for Row := 0 to FileHeight-1 do begin
- TmpData := GetRowPointer(Row);
- if Assigned(TmpData) then begin
- Move(SourceData^, TmpData^, RowSize);
- inc(SourceData, RowSize);
- end;
- end;
- result := true;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
- var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface^.pixels;
- Inc(result, Row * RowSize);
- end;
-
- begin
- result := false;
- if (Assigned(aSurface)) then begin
- with aSurface^.format^ do begin
- for IntFormat := High(TglBitmapFormat) to Low(TglBitmapFormat) do begin
- FormatDesc := TFormatDescriptor.Get(IntFormat);
- if (FormatDesc.MaskMatch(RMask, GMask, BMask, AMask)) then
- break;
- end;
- if (IntFormat = tfEmpty) then
- raise EglBitmapException.Create('AssignFromSurface - Invalid Pixelformat.');
- end;
-
- TempWidth := aSurface^.w;
- TempHeight := aSurface^.h;
- RowSize := FormatDesc.GetSize(TempWidth, 1);
- GetMem(pData, TempHeight * RowSize);
- try
- pTempData := pData;
- for Row := 0 to TempHeight -1 do begin
- pSource := GetRowPointer(Row);
- if (Assigned(pSource)) then begin
- Move(pSource^, pTempData^, RowSize);
- Inc(pTempData, RowSize);
- end;
- end;
- SetDataPointer(pData, IntFormat, TempWidth, TempHeight);
- result := true;
- except
- FreeMem(pData);
- raise;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
- var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- result := aSurface.pixels;
- Inc(result, Row * Width);
- end;
-
- begin
- result := false;
- if Assigned(Data) then begin
- if Format in [tfAlpha8, tfLuminance8Alpha8, tfBGRA8, tfRGBA8] then begin
- aSurface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
-
- AlphaInterleave := 0;
- case Format of
- tfLuminance8Alpha8:
- AlphaInterleave := 1;
- tfBGRA8, tfRGBA8:
- AlphaInterleave := 3;
- end;
-
- pSource := Data;
- for Row := 0 to Height -1 do begin
- pDest := GetRowPointer(Row);
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
- result := true;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil; const aArgs: Pointer = nil): Boolean;
- var
- bmp: TglBitmap2D;
- begin
- bmp := TglBitmap2D.Create;
- try
- bmp.AssignFromSurface(aSurface);
- result := AddAlphaFromGlBitmap(bmp, aFunc, aArgs);
- finally
- bmp.Free;
- end;
- end;
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI}
- //TODO rework & test
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignToBitmap(const aBitmap: TBitmap): Boolean;
- var
- Row: Integer;
- pSource, pData: PByte;
- begin
- result := false;
- if Assigned(Data) then begin
- if Assigned(aBitmap) then begin
- aBitmap.Width := Width;
- aBitmap.Height := Height;
-
- case Format of
- tfAlpha8, ifLuminance, ifDepth8:
- begin
- Bitmap.PixelFormat := pf8bit;
- Bitmap.Palette := CreateGrayPalette;
- end;
- ifRGB5A1:
- Bitmap.PixelFormat := pf15bit;
- ifR5G6B5:
- Bitmap.PixelFormat := pf16bit;
- ifRGB8, ifBGR8:
- Bitmap.PixelFormat := pf24bit;
- ifRGBA8, ifBGRA8:
- Bitmap.PixelFormat := pf32bit;
- else
- raise EglBitmapException.Create('AssignToBitmap - Invalid Pixelformat.');
- end;
-
- pSource := Data;
- for Row := 0 to FileHeight -1 do begin
- pData := Bitmap.Scanline[Row];
-
- Move(pSource^, pData^, fRowSize);
- Inc(pSource, fRowSize);
-
- // swap RGB(A) to BGR(A)
- if InternalFormat in [ifRGB8, ifRGBA8] then
- SwapRGB(pData, FileWidth, InternalFormat = ifRGBA8);
- end;
-
- result := true;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignFromBitmap(const aBitmap: TBitmap): Boolean;
- var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapInternalFormat;
- begin
- result := false;
-
- if (Assigned(Bitmap)) then begin
- case Bitmap.PixelFormat of
- pf8bit:
- IntFormat := ifLuminance;
- pf15bit:
- IntFormat := ifRGB5A1;
- pf16bit:
- IntFormat := ifR5G6B5;
- pf24bit:
- IntFormat := ifBGR8;
- pf32bit:
- IntFormat := ifBGRA8;
- else
- raise EglBitmapException.Create('AssignFromBitmap - Invalid Pixelformat.');
- end;
-
- TempWidth := Bitmap.Width;
- TempHeight := Bitmap.Height;
-
- RowSize := Trunc(TempWidth * FormatGetSize(IntFormat));
-
- GetMem(pData, TempHeight * RowSize);
- try
- pTempData := pData;
-
- for Row := 0 to TempHeight -1 do begin
- pSource := Bitmap.Scanline[Row];
-
- if (Assigned(pSource)) then begin
- Move(pSource^, pTempData^, RowSize);
- Inc(pTempData, RowSize);
- end;
- end;
-
- SetDataPointer(pData, IntFormat, TempWidth, TempHeight);
-
- result := true;
- except
- FreeMem(pData);
- raise;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
- var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
- begin
- result := false;
-
- if Assigned(Data) then begin
- if InternalFormat in [ifAlpha, ifLuminanceAlpha, ifRGBA8, ifBGRA8] then begin
- if Assigned(Bitmap) then begin
- Bitmap.PixelFormat := pf8bit;
- Bitmap.Palette := CreateGrayPalette;
- Bitmap.Width := Width;
- Bitmap.Height := Height;
-
- case InternalFormat of
- ifLuminanceAlpha:
- AlphaInterleave := 1;
- ifRGBA8, ifBGRA8:
- AlphaInterleave := 3;
- else
- AlphaInterleave := 0;
- end;
-
- // Copy Data
- pSource := Data;
-
- for Row := 0 to Height -1 do begin
- pDest := Bitmap.Scanline[Row];
-
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
-
- result := true;
- end;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction; const aArgs: PtrInt): Boolean;
- var
- tex: TglBitmap2D;
- begin
- tex := TglBitmap2D.Create;
- try
- tex.AssignFromBitmap(Bitmap);
- result := AddAlphaFromglBitmap(tex, Func, CustomData);
- finally
- tex.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromResource(const aInstance: Cardinal; const aResource: String; const aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: PtrInt): Boolean;
- var
- RS: TResourceStream;
- TempPos: Integer;
- ResTypeStr: String;
- TempResType: PChar;
- begin
- if Assigned(ResType) then
- TempResType := ResType
- else
- begin
- TempPos := Pos('.', Resource);
- ResTypeStr := UpperCase(Copy(Resource, TempPos + 1, Length(Resource) - TempPos));
- Resource := UpperCase(Copy(Resource, 0, TempPos -1));
- TempResType := PChar(ResTypeStr);
- end;
-
- RS := TResourceStream.Create(Instance, Resource, TempResType);
- try
- result := AddAlphaFromStream(RS, Func, CustomData);
- finally
- RS.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction; const aArgs: PtrInt): Boolean;
- var
- RS: TResourceStream;
- begin
- RS := TResourceStream.CreateFromID(Instance, ResourceID, ResType);
- try
- result := AddAlphaFromStream(RS, Func, CustomData);
- finally
- RS.Free;
- end;
- end;
- {$ENDIF}
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
- begin
- (* TODO
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedFormatFormat.Create('AddAlphaFromFunc - ' + UNSUPPORTED_FORMAT);
- *)
- result := AddFunc(Self, aFunc, false, TFormatDescriptor.Get(Format).WithAlpha, aArgs);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
- var
- FS: TFileStream;
- begin
- FS := TFileStream.Create(FileName, fmOpenRead);
- try
- result := AddAlphaFromStream(FS, aFunc, aArgs);
- finally
- FS.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
- var
- tex: TglBitmap2D;
- begin
- tex := TglBitmap2D.Create(aStream);
- try
- result := AddAlphaFromglBitmap(tex, aFunc, aArgs);
- finally
- tex.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromGlBitmap(const aBitmap: TglBitmap; aFunc: TglBitmapFunction; const aArgs: Pointer): Boolean;
- var
- DestData, DestData2, SourceData: pByte;
- TempHeight, TempWidth: Integer;
- SourceFD, DestFD: TFormatDescriptor;
- SourceMD, DestMD, DestMD2: Pointer;
-
- FuncRec: TglBitmapFunctionRec;
- begin
- result := false;
-
- Assert(Assigned(Data));
- Assert(Assigned(aBitmap));
- Assert(Assigned(aBitmap.Data));
-
- if ((aBitmap.Width = Width) and (aBitmap.Height = Height)) then begin
- result := ConvertTo(TFormatDescriptor.Get(Format).WithAlpha);
-
- SourceFD := TFormatDescriptor.Get(aBitmap.Format);
- DestFD := TFormatDescriptor.Get(Format);
-
- if not Assigned(aFunc) then begin
- aFunc := glBitmapAlphaFunc;
- FuncRec.Args := {%H-}Pointer(SourceFD.HasAlpha);
- end else
- FuncRec.Args := aArgs;
-
- // Values
- TempHeight := aBitmap.FileHeight;
- TempWidth := aBitmap.FileWidth;
-
- FuncRec.Sender := Self;
- FuncRec.Size := Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- DestData := Data;
- DestData2 := Data;
- SourceData := aBitmap.Data;
-
- // Mapping
- SourceFD.PreparePixel(FuncRec.Source);
- DestFD.PreparePixel (FuncRec.Dest);
-
- SourceMD := SourceFD.CreateMappingData;
- DestMD := DestFD.CreateMappingData;
- DestMD2 := DestFD.CreateMappingData;
- try
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- SourceFD.Unmap(SourceData, FuncRec.Source, SourceMD);
- DestFD.Unmap (DestData, FuncRec.Dest, DestMD);
- aFunc(FuncRec);
- DestFD.Map(FuncRec.Dest, DestData2, DestMD2);
- inc(FuncRec.Position.X);
- end;
- inc(FuncRec.Position.Y);
- end;
- finally
- SourceFD.FreeMappingData(SourceMD);
- DestFD.FreeMappingData(DestMD);
- DestFD.FreeMappingData(DestMD2);
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromColorKey(const aRed, aGreen, aBlue: Byte; const aDeviation: Byte): Boolean;
- begin
- result := AddAlphaFromColorKeyFloat(aRed / $FF, aGreen / $FF, aBlue / $FF, aDeviation / $FF);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromColorKeyRange(const aRed, aGreen, aBlue: Cardinal; const aDeviation: Cardinal): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- result := AddAlphaFromColorKeyFloat(
- aRed / PixelData.Range.r,
- aGreen / PixelData.Range.g,
- aBlue / PixelData.Range.b,
- aDeviation / Max(PixelData.Range.r, Max(PixelData.Range.g, PixelData.Range.b)));
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromColorKeyFloat(const aRed, aGreen, aBlue: Single; const aDeviation: Single): Boolean;
- var
- values: array[0..2] of Single;
- tmp: Cardinal;
- i: Integer;
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- with PixelData do begin
- values[0] := aRed;
- values[1] := aGreen;
- values[2] := aBlue;
-
- for i := 0 to 2 do begin
- tmp := Trunc(Range.arr[i] * aDeviation);
- Data.arr[i] := Min(Range.arr[i], Trunc(Range.arr[i] * values[i] + tmp));
- Range.arr[i] := Max(0, Trunc(Range.arr[i] * values[i] - tmp));
- end;
- Data.a := 0;
- Range.a := 0;
- end;
- result := AddAlphaFromFunc(glBitmapColorKeyAlphaFunc, @PixelData);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromValue(const aAlpha: Byte): Boolean;
- begin
- result := AddAlphaFromValueFloat(aAlpha / $FF);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromValueRange(const aAlpha: Cardinal): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- result := AddAlphaFromValueFloat(aAlpha / PixelData.Range.a);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.AddAlphaFromValueFloat(const aAlpha: Single): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- with PixelData do
- Data.a := Min(Range.a, Max(0, Round(Range.a * aAlpha)));
- result := AddAlphaFromFunc(glBitmapValueAlphaFunc, @PixelData.Data.a);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.RemoveAlpha: Boolean;
- var
- FormatDesc: TFormatDescriptor;
- begin
- result := false;
- FormatDesc := TFormatDescriptor.Get(Format);
- if Assigned(Data) then begin
- if FormatDesc.IsCompressed or not FormatDesc.HasAlpha then
- raise EglBitmapUnsupportedFormat.Create('RemoveAlpha');
- result := ConvertTo(FormatDesc.WithoutAlpha);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.Clone: TglBitmap;
- var
- Temp: TglBitmap;
- TempPtr: PByte;
- Size: Integer;
- begin
- result := nil;
- Temp := (ClassType.Create as TglBitmap);
- try
- // copy texture data if assigned
- if Assigned(Data) then begin
- Size := TFormatDescriptor.Get(Format).GetSize(fDimension);
- GetMem(TempPtr, Size);
- try
- Move(Data^, TempPtr^, Size);
- Temp.SetDataPointer(TempPtr, Format, Width, Height);
- except
- FreeMem(TempPtr);
- raise;
- end;
- end else
- Temp.SetDataPointer(nil, Format, Width, Height);
-
- // copy properties
- Temp.fID := ID;
- Temp.fTarget := Target;
- Temp.fFormat := Format;
- Temp.fMipMap := MipMap;
- Temp.fAnisotropic := Anisotropic;
- Temp.fBorderColor := fBorderColor;
- Temp.fDeleteTextureOnFree := DeleteTextureOnFree;
- Temp.fFreeDataAfterGenTexture := FreeDataAfterGenTexture;
- Temp.fFilterMin := fFilterMin;
- Temp.fFilterMag := fFilterMag;
- Temp.fWrapS := fWrapS;
- Temp.fWrapT := fWrapT;
- Temp.fWrapR := fWrapR;
- Temp.fFilename := fFilename;
- Temp.fCustomName := fCustomName;
- Temp.fCustomNameW := fCustomNameW;
- Temp.fCustomData := fCustomData;
-
- result := Temp;
- except
- FreeAndNil(Temp);
- raise;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.ConvertTo(const aFormat: TglBitmapFormat): Boolean;
- var
- SourceFD, DestFD: TFormatDescriptor;
- SourcePD, DestPD: TglBitmapPixelData;
- ShiftData: TShiftData;
-
- function CanCopyDirect: Boolean;
- begin
- result :=
- ((SourcePD.Range.r = DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
- ((SourcePD.Range.g = DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
- ((SourcePD.Range.b = DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
- ((SourcePD.Range.a = DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
- end;
-
- function CanShift: Boolean;
- begin
- result :=
- ((SourcePD.Range.r >= DestPD.Range.r) or (SourcePD.Range.r = 0) or (DestPD.Range.r = 0)) and
- ((SourcePD.Range.g >= DestPD.Range.g) or (SourcePD.Range.g = 0) or (DestPD.Range.g = 0)) and
- ((SourcePD.Range.b >= DestPD.Range.b) or (SourcePD.Range.b = 0) or (DestPD.Range.b = 0)) and
- ((SourcePD.Range.a >= DestPD.Range.a) or (SourcePD.Range.a = 0) or (DestPD.Range.a = 0));
- end;
-
- function GetShift(aSource, aDest: Cardinal) : ShortInt;
- begin
- result := 0;
- while (aSource > aDest) and (aSource > 0) do begin
- inc(result);
- aSource := aSource shr 1;
- end;
- end;
-
- begin
- if (aFormat <> fFormat) and (aFormat <> tfEmpty) then begin
- SourceFD := TFormatDescriptor.Get(Format);
- DestFD := TFormatDescriptor.Get(aFormat);
-
- SourceFD.PreparePixel(SourcePD);
- DestFD.PreparePixel (DestPD);
-
- if CanCopyDirect then
- result := AddFunc(Self, glBitmapConvertCopyFunc, false, aFormat)
- else if CanShift then begin
- ShiftData.r := GetShift(SourcePD.Range.r, DestPD.Range.r);
- ShiftData.g := GetShift(SourcePD.Range.g, DestPD.Range.g);
- ShiftData.b := GetShift(SourcePD.Range.b, DestPD.Range.b);
- ShiftData.a := GetShift(SourcePD.Range.a, DestPD.Range.a);
- result := AddFunc(Self, glBitmapConvertShiftRGBAFunc, false, aFormat, @ShiftData);
- end else
- result := AddFunc(Self, glBitmapConvertCalculateRGBAFunc, false, aFormat);
- end else
- result := true;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.Invert(const aUseRGB: Boolean; const aUseAlpha: Boolean);
- begin
- if aUseRGB or aUseAlpha then
- AddFunc(glBitmapInvertFunc, false, {%H-}Pointer(
- ((PtrInt(aUseAlpha) and 1) shl 1) or
- (PtrInt(aUseRGB) and 1) ));
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetBorderColor(const aRed, aGreen, aBlue, aAlpha: Single);
- begin
- fBorderColor[0] := aRed;
- fBorderColor[1] := aGreen;
- fBorderColor[2] := aBlue;
- fBorderColor[3] := aAlpha;
- if (ID > 0) then begin
- Bind(false);
- glTexParameterfv(Target, GL_TEXTURE_BORDER_COLOR, @fBorderColor[0]);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.FreeData;
- begin
- SetDataPointer(nil, tfEmpty);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.FillWithColor(const aRed, aGreen, aBlue: Byte;
- const aAlpha: Byte);
- begin
- FillWithColorFloat(aRed/$FF, aGreen/$FF, aBlue/$FF, aAlpha/$FF);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal);
- var
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.GetWithAlpha(Format).PreparePixel(PixelData);
- FillWithColorFloat(
- aRed / PixelData.Range.r,
- aGreen / PixelData.Range.g,
- aBlue / PixelData.Range.b,
- aAlpha / PixelData.Range.a);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha: Single);
- var
- PixelData: TglBitmapPixelData;
- begin
- TFormatDescriptor.Get(Format).PreparePixel(PixelData);
- with PixelData do begin
- Data.r := Max(0, Min(Range.r, Trunc(Range.r * aRed)));
- Data.g := Max(0, Min(Range.g, Trunc(Range.g * aGreen)));
- Data.b := Max(0, Min(Range.b, Trunc(Range.b * aBlue)));
- Data.a := Max(0, Min(Range.a, Trunc(Range.a * aAlpha)));
- end;
- AddFunc(glBitmapFillWithColorFunc, false, @PixelData);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetFilter(const aMin, aMag: Cardinal);
- 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 EglBitmapException.Create('SetFilter - Unknow MIN filter.');
- end;
-
- //check MAG filter
- case aMag of
- GL_NEAREST:
- fFilterMag := GL_NEAREST;
- GL_LINEAR:
- fFilterMag := GL_LINEAR;
- else
- raise EglBitmapException.Create('SetFilter - Unknow MAG filter.');
- end;
-
- //apply filter
- if (ID > 0) then begin
- Bind(false);
- glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, fFilterMag);
-
- if (MipMap = mmNone) or (Target = GL_TEXTURE_RECTANGLE) then begin
- case fFilterMin of
- GL_NEAREST, GL_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR_MIPMAP_LINEAR:
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- end;
- end else
- glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, fFilterMin);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SetWrap(const S: Cardinal; const T: Cardinal; const R: Cardinal);
-
- procedure CheckAndSetWrap(const aValue: Cardinal; var aTarget: Cardinal);
- begin
- case aValue of
- GL_CLAMP:
- aTarget := GL_CLAMP;
-
- GL_REPEAT:
- aTarget := GL_REPEAT;
-
- GL_CLAMP_TO_EDGE: begin
- if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
- aTarget := GL_CLAMP_TO_EDGE
- else
- aTarget := GL_CLAMP;
- end;
-
- GL_CLAMP_TO_BORDER: begin
- if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
- aTarget := GL_CLAMP_TO_BORDER
- else
- aTarget := GL_CLAMP;
- end;
-
- GL_MIRRORED_REPEAT: begin
- if GL_VERSION_1_4 or GL_ARB_texture_mirrored_repeat or GL_IBM_texture_mirrored_repeat then
- aTarget := GL_MIRRORED_REPEAT
- else
- raise EglBitmapException.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
- end;
- else
- raise EglBitmapException.Create('SetWrap - Unknow Texturewrap (S).');
- end;
- end;
-
- begin
- CheckAndSetWrap(S, fWrapS);
- CheckAndSetWrap(T, fWrapT);
- CheckAndSetWrap(R, fWrapR);
-
- if (ID > 0) then begin
- Bind(false);
- glTexParameteri(Target, GL_TEXTURE_WRAP_S, fWrapS);
- glTexParameteri(Target, GL_TEXTURE_WRAP_T, fWrapT);
- glTexParameteri(Target, GL_TEXTURE_WRAP_R, fWrapR);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.Bind(const aEnableTextureUnit: Boolean);
- begin
- if aEnableTextureUnit then
- glEnable(Target);
- if (ID > 0) then
- glBindTexture(Target, ID);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.Unbind(const aDisableTextureUnit: Boolean);
- begin
- if aDisableTextureUnit then
- glDisable(Target);
- glBindTexture(Target, 0);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create;
- begin
- {$IFDEF GLB_NATIVE_OGL}
- glbReadOpenGLExtensions;
- {$ENDIF}
- if (ClassType = TglBitmap) then
- raise EglBitmapException.Create('Don''t create TglBitmap directly. Use one of the deviated classes (TglBitmap2D) instead.');
- inherited Create;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aFileName: String);
- begin
- Create;
- LoadFromFile(FileName);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aStream: TStream);
- begin
- Create;
- LoadFromStream(aStream);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat);
- var
- Image: PByte;
- ImageSize: Integer;
- begin
- Create;
- ImageSize := TFormatDescriptor.Get(aFormat).GetSize(aSize);
- GetMem(Image, ImageSize);
- try
- FillChar(Image^, ImageSize, #$FF);
- SetDataPointer(Image, aFormat, aSize.X, aSize.Y);
- except
- FreeMem(Image);
- raise;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aSize: TglBitmapPixelPosition; const aFormat: TglBitmapFormat;
- const aFunc: TglBitmapFunction; const aArgs: Pointer);
- begin
- Create;
- LoadFromFunc(aSize, aFunc, aFormat, aArgs);
- end;
-
- {$IFDEF GLB_DELPHI}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aInstance: Cardinal; const aResource: String; const aResType: PChar);
- begin
- Create;
- LoadFromResource(aInstance, aResource, aResType);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- constructor TglBitmap.Create(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar);
- begin
- Create;
- LoadFromResourceID(aInstance, aResourceID, aResType);
- end;
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_PNG_READ}
- {$IF DEFINED(GLB_SDL_IMAGE)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //PNG/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
- var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
- begin
- result := false;
- RWops := glBitmapCreateRWops(aStream);
- try
- if IMG_isPNG(RWops) > 0 then begin
- Surface := IMG_LoadPNG_RW(RWops);
- try
- AssignFromSurface(Surface);
- result := true;
- finally
- SDL_FreeSurface(Surface);
- end;
- end;
- finally
- SDL_FreeRW(RWops);
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_LIB_PNG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmap_libPNG_read_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
- begin
- TStream(png_get_io_ptr(png)).Read(buffer^, size);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
- var
- StreamPos: Int64;
- signature: array [0..7] of byte;
- png: png_structp;
- png_info: png_infop;
-
- TempHeight, TempWidth: Integer;
- Format: TglBitmapInternalFormat;
-
- png_data: pByte;
- png_rows: array of pByte;
- Row, LineSize: Integer;
- begin
- result := false;
-
- if not init_libPNG then
- raise Exception.Create('LoadPNG - unable to initialize libPNG.');
-
- try
- // signature
- StreamPos := Stream.Position;
- Stream.Read(signature, 8);
- Stream.Position := StreamPos;
-
- if png_check_sig(@signature, 8) <> 0 then begin
- // png read struct
- png := png_create_read_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
- if png = nil then
- raise EglBitmapException.Create('LoadPng - couldn''t create read struct.');
-
- // png info
- png_info := png_create_info_struct(png);
- if png_info = nil then begin
- png_destroy_read_struct(@png, nil, nil);
- raise EglBitmapException.Create('LoadPng - couldn''t create info struct.');
- end;
-
- // set read callback
- png_set_read_fn(png, stream, glBitmap_libPNG_read_func);
-
- // read informations
- png_read_info(png, png_info);
-
- // size
- TempHeight := png_get_image_height(png, png_info);
- TempWidth := png_get_image_width(png, png_info);
-
- // format
- case png_get_color_type(png, png_info) of
- PNG_COLOR_TYPE_GRAY:
- Format := tfLuminance8;
- PNG_COLOR_TYPE_GRAY_ALPHA:
- Format := tfLuminance8Alpha8;
- PNG_COLOR_TYPE_RGB:
- Format := tfRGB8;
- PNG_COLOR_TYPE_RGB_ALPHA:
- Format := tfRGBA8;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- // cut upper 8 bit from 16 bit formats
- if png_get_bit_depth(png, png_info) > 8 then
- png_set_strip_16(png);
-
- // expand bitdepth smaller than 8
- if png_get_bit_depth(png, png_info) < 8 then
- png_set_expand(png);
-
- // allocating mem for scanlines
- LineSize := png_get_rowbytes(png, png_info);
- GetMem(png_data, TempHeight * LineSize);
- try
- SetLength(png_rows, TempHeight);
- for Row := Low(png_rows) to High(png_rows) do begin
- png_rows[Row] := png_data;
- Inc(png_rows[Row], Row * LineSize);
- end;
-
- // read complete image into scanlines
- png_read_image(png, @png_rows[0]);
-
- // read end
- png_read_end(png, png_info);
-
- // destroy read struct
- png_destroy_read_struct(@png, @png_info, nil);
-
- SetLength(png_rows, 0);
-
- // set new data
- SetDataPointer(png_data, Format, TempWidth, TempHeight);
-
- result := true;
- except
- FreeMem(png_data);
- raise;
- end;
- end;
- finally
- quit_libPNG;
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_PNGIMAGE)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadPNG(const aStream: TStream): Boolean;
- var
- StreamPos: Int64;
- Png: TPNGObject;
- Header: Array[0..7] of Byte;
- Row, Col, PixSize, LineSize: Integer;
- NewImage, pSource, pDest, pAlpha: pByte;
- Format: TglBitmapInternalFormat;
-
- const
- PngHeader: Array[0..7] of Byte = (#137, #80, #78, #71, #13, #10, #26, #10);
-
- begin
- result := false;
-
- StreamPos := Stream.Position;
- Stream.Read(Header[0], SizeOf(Header));
- Stream.Position := StreamPos;
-
- {Test if the header matches}
- if Header = PngHeader then begin
- Png := TPNGObject.Create;
- try
- Png.LoadFromStream(Stream);
-
- case Png.Header.ColorType of
- COLOR_GRAYSCALE:
- Format := ifLuminance;
- COLOR_GRAYSCALEALPHA:
- Format := ifLuminanceAlpha;
- COLOR_RGB:
- Format := ifBGR8;
- COLOR_RGBALPHA:
- Format := ifBGRA8;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- PixSize := Trunc(FormatGetSize(Format));
- LineSize := Integer(Png.Header.Width) * PixSize;
-
- GetMem(NewImage, LineSize * Integer(Png.Header.Height));
- try
- pDest := NewImage;
-
- case Png.Header.ColorType of
- COLOR_RGB, COLOR_GRAYSCALE:
- begin
- for Row := 0 to Png.Height -1 do begin
- Move (Png.Scanline[Row]^, pDest^, LineSize);
- Inc(pDest, LineSize);
- end;
- end;
- COLOR_RGBALPHA, COLOR_GRAYSCALEALPHA:
- begin
- PixSize := PixSize -1;
-
- for Row := 0 to Png.Height -1 do begin
- pSource := Png.Scanline[Row];
- pAlpha := pByte(Png.AlphaScanline[Row]);
-
- for Col := 0 to Png.Width -1 do begin
- Move (pSource^, pDest^, PixSize);
- Inc(pSource, PixSize);
- Inc(pDest, PixSize);
-
- pDest^ := pAlpha^;
- inc(pAlpha);
- Inc(pDest);
- end;
- end;
- end;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- SetDataPointer(NewImage, Format, Png.Header.Width, Png.Header.Height);
-
- result := true;
- except
- FreeMem(NewImage);
- raise;
- end;
- finally
- Png.Free;
- end;
- end;
- end;
- {$IFEND}
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- {$IFDEF GLB_LIB_PNG}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmap_libPNG_write_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
- begin
- TStream(png_get_io_ptr(png)).Write(buffer^, size);
- end;
- {$ENDIF}
-
- {$IF DEFINED(GLB_LIB_PNG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SavePNG(const aStream: TStream);
- var
- png: png_structp;
- png_info: png_infop;
- png_rows: array of pByte;
- LineSize: Integer;
- ColorType: Integer;
- Row: Integer;
- begin
- if not (ftPNG in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- if not init_libPNG then
- raise Exception.Create('SavePNG - unable to initialize libPNG.');
-
- try
- case FInternalFormat of
- ifAlpha, ifLuminance, ifDepth8:
- ColorType := PNG_COLOR_TYPE_GRAY;
- ifLuminanceAlpha:
- ColorType := PNG_COLOR_TYPE_GRAY_ALPHA;
- ifBGR8, ifRGB8:
- ColorType := PNG_COLOR_TYPE_RGB;
- ifBGRA8, ifRGBA8:
- ColorType := PNG_COLOR_TYPE_RGBA;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
- LineSize := Trunc(FormatGetSize(FInternalFormat) * Width);
-
- // creating array for scanline
- SetLength(png_rows, Height);
- try
- for Row := 0 to Height - 1 do begin
- png_rows[Row] := Data;
- Inc(png_rows[Row], Row * LineSize)
- end;
-
- // write struct
- png := png_create_write_struct(PNG_LIBPNG_VER_STRING, nil, nil, nil);
- if png = nil then
- raise EglBitmapException.Create('SavePng - couldn''t create write struct.');
-
- // create png info
- png_info := png_create_info_struct(png);
- if png_info = nil then begin
- png_destroy_write_struct(@png, nil);
- raise EglBitmapException.Create('SavePng - couldn''t create info struct.');
- end;
-
- // set read callback
- png_set_write_fn(png, stream, glBitmap_libPNG_write_func, nil);
-
- // set compression
- png_set_compression_level(png, 6);
-
- if InternalFormat in [ifBGR8, ifBGRA8] then
- png_set_bgr(png);
-
- png_set_IHDR(png, png_info, Width, Height, 8, ColorType, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
- png_write_info(png, png_info);
- png_write_image(png, @png_rows[0]);
- png_write_end(png, png_info);
- png_destroy_write_struct(@png, @png_info);
- finally
- SetLength(png_rows, 0);
- end;
- finally
- quit_libPNG;
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_PNGIMAGE)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SavePNG(const aStream: TStream);
- var
- Png: TPNGObject;
-
- pSource, pDest: pByte;
- X, Y, PixSize: Integer;
- ColorType: Cardinal;
- Alpha: Boolean;
-
- pTemp: pByte;
- Temp: Byte;
- begin
- if not (ftPNG in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- case FInternalFormat of
- ifAlpha, ifLuminance, ifDepth8: begin
- ColorType := COLOR_GRAYSCALE;
- PixSize := 1;
- Alpha := false;
- end;
- ifLuminanceAlpha: begin
- ColorType := COLOR_GRAYSCALEALPHA;
- PixSize := 1;
- Alpha := true;
- end;
- ifBGR8, ifRGB8: begin
- ColorType := COLOR_RGB;
- PixSize := 3;
- Alpha := false;
- end;
- ifBGRA8, ifRGBA8: begin
- ColorType := COLOR_RGBALPHA;
- PixSize := 3;
- Alpha := true
- end;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
-
- Png := TPNGObject.CreateBlank(ColorType, 8, Width, Height);
- try
- // Copy ImageData
- pSource := Data;
- for Y := 0 to Height -1 do begin
- pDest := png.ScanLine[Y];
- for X := 0 to Width -1 do begin
- Move(pSource^, pDest^, PixSize);
- Inc(pDest, PixSize);
- Inc(pSource, PixSize);
- if Alpha then begin
- png.AlphaScanline[Y]^[X] := pSource^;
- Inc(pSource);
- end;
- end;
-
- // convert RGB line to BGR
- if InternalFormat in [ifRGB8, ifRGBA8] then begin
- pTemp := png.ScanLine[Y];
- for X := 0 to Width -1 do begin
- Temp := pByteArray(pTemp)^[0];
- pByteArray(pTemp)^[0] := pByteArray(pTemp)^[2];
- pByteArray(pTemp)^[2] := Temp;
- Inc(pTemp, 3);
- end;
- end;
- end;
-
- // Save to Stream
- Png.CompressionLevel := 6;
- Png.SaveToStream(Stream);
- finally
- FreeAndNil(Png);
- end;
- end;
- {$IFEND}
- {$ENDIF}
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //JPEG////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- {$IFDEF GLB_LIB_JPEG}
- type
- glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
- glBitmap_libJPEG_source_mgr = record
- pub: jpeg_source_mgr;
-
- SrcStream: TStream;
- SrcBuffer: array [1..4096] of byte;
- end;
-
- glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
- glBitmap_libJPEG_dest_mgr = record
- pub: jpeg_destination_mgr;
-
- DestStream: TStream;
- DestBuffer: array [1..4096] of byte;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmap_libJPEG_fill_input_buffer(cinfo: j_decompress_ptr): boolean; cdecl;
- var
- src: glBitmap_libJPEG_source_mgr_ptr;
- bytes: integer;
- begin
- src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
-
- bytes := src^.SrcStream.Read(src^.SrcBuffer[1], 4096);
- if (bytes <= 0) then begin
- src^.SrcBuffer[1] := $FF;
- src^.SrcBuffer[2] := JPEG_EOI;
- bytes := 2;
- end;
-
- src^.pub.next_input_byte := @(src^.SrcBuffer[1]);
- src^.pub.bytes_in_buffer := bytes;
-
- result := true;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmap_libJPEG_skip_input_data(cinfo: j_decompress_ptr; num_bytes: Longint); cdecl;
- var
- src: glBitmap_libJPEG_source_mgr_ptr;
- begin
- src := glBitmap_libJPEG_source_mgr_ptr(cinfo^.src);
-
- if num_bytes > 0 then begin
- // wanted byte isn't in buffer so set stream position and read buffer
- if num_bytes > src^.pub.bytes_in_buffer then begin
- src^.SrcStream.Position := src^.SrcStream.Position + num_bytes - src^.pub.bytes_in_buffer;
- src^.pub.fill_input_buffer(cinfo);
- end else begin
- // wanted byte is in buffer so only skip
- inc(src^.pub.next_input_byte, num_bytes);
- dec(src^.pub.bytes_in_buffer, num_bytes);
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function glBitmap_libJPEG_empty_output_buffer(cinfo: j_compress_ptr): boolean; cdecl;
- var
- dest: glBitmap_libJPEG_dest_mgr_ptr;
- begin
- dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
-
- if dest^.pub.free_in_buffer < Cardinal(Length(dest^.DestBuffer)) then begin
- // write complete buffer
- dest^.DestStream.Write(dest^.DestBuffer[1], SizeOf(dest^.DestBuffer));
-
- // reset buffer
- dest^.pub.next_output_byte := @dest^.DestBuffer[1];
- dest^.pub.free_in_buffer := Length(dest^.DestBuffer);
- end;
-
- result := true;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmap_libJPEG_term_destination(cinfo: j_compress_ptr); cdecl;
- var
- Idx: Integer;
- dest: glBitmap_libJPEG_dest_mgr_ptr;
- begin
- dest := glBitmap_libJPEG_dest_mgr_ptr(cinfo^.dest);
-
- for Idx := Low(dest^.DestBuffer) to High(dest^.DestBuffer) do begin
- // check for endblock
- if (Idx < High(dest^.DestBuffer)) and (dest^.DestBuffer[Idx] = $FF) and (dest^.DestBuffer[Idx +1] = JPEG_EOI) then begin
- // write endblock
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 2);
-
- // leave
- break;
- end else
- dest^.DestStream.Write(dest^.DestBuffer[Idx], 1);
- end;
- end;
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- {$IF DEFINED(GLB_SDL_IMAGE)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
- var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
- begin
- result := false;
-
- RWops := glBitmapCreateRWops(aStream);
- try
- if IMG_isJPG(RWops) > 0 then begin
- Surface := IMG_LoadJPG_RW(RWops);
- try
- AssignFromSurface(Surface);
- result := true;
- finally
- SDL_FreeSurface(Surface);
- end;
- end;
- finally
- SDL_FreeRW(RWops);
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_LIB_JPEG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
- var
- StreamPos: Int64;
- Temp: array[0..1]of Byte;
-
- jpeg: jpeg_decompress_struct;
- jpeg_err: jpeg_error_mgr;
-
- IntFormat: TglBitmapInternalFormat;
- pImage: pByte;
- TempHeight, TempWidth: Integer;
-
- pTemp: pByte;
- Row: Integer;
- 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 := Stream.Position;
- Stream.Read(Temp[0], 2);
- Stream.Position := StreamPos;
-
- // if Bitmap then read file.
- if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
- FillChar(jpeg, SizeOf(jpeg_decompress_struct), $00);
- FillChar(jpeg_err, 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 := Stream;
- 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 := ifLuminance;
- end;
- else
- jpeg.out_color_space := JCS_RGB;
- IntFormat := ifRGB8;
- end;
-
- // reading image
- jpeg_start_decompress(@jpeg);
-
- TempHeight := jpeg.output_height;
- TempWidth := jpeg.output_width;
-
- // creating new image
- GetMem(pImage, FormatGetImageSize(glBitmapPosition(TempWidth, TempHeight), IntFormat));
- try
- pTemp := pImage;
-
- for Row := 0 to TempHeight -1 do begin
- jpeg_read_scanlines(@jpeg, @pTemp, 1);
- Inc(pTemp, Trunc(FormatGetSize(IntFormat) * TempWidth));
- end;
-
- // finish decompression
- jpeg_finish_decompress(@jpeg);
-
- // destroy decompression
- jpeg_destroy_decompress(@jpeg);
-
- SetDataPointer(pImage, IntFormat, TempWidth, TempHeight);
-
- result := true;
- except
- FreeMem(pImage);
- raise;
- end;
- end;
- finally
- quit_libJPEG;
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadJPEG(const aStream: TStream): Boolean;
- var
- bmp: TBitmap;
- jpg: TJPEGImage;
- StreamPos: Int64;
- Temp: array[0..1]of Byte;
- begin
- result := false;
-
- // reading first two bytes to test file and set cursor back to begin
- StreamPos := Stream.Position;
- Stream.Read(Temp[0], 2);
- Stream.Position := StreamPos;
-
- // if Bitmap then read file.
- if ((Temp[0] = $FF) and (Temp[1] = $D8)) then begin
- bmp := TBitmap.Create;
- try
- jpg := TJPEGImage.Create;
- try
- jpg.LoadFromStream(Stream);
- bmp.Assign(jpg);
- result := AssignFromBitmap(bmp);
- finally
- jpg.Free;
- end;
- finally
- bmp.Free;
- end;
- end;
- end;
- {$IFEND}
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- {$IF DEFEFINED(GLB_LIB_JPEG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveJPEG(Stream: TStream);
- var
- jpeg: jpeg_compress_struct;
- jpeg_err: jpeg_error_mgr;
- Row: Integer;
- pTemp, pTemp2: pByte;
-
- procedure CopyRow(pDest, pSource: pByte);
- var
- X: Integer;
- begin
- for X := 0 to Width - 1 do begin
- pByteArray(pDest)^[0] := pByteArray(pSource)^[2];
- pByteArray(pDest)^[1] := pByteArray(pSource)^[1];
- pByteArray(pDest)^[2] := pByteArray(pSource)^[0];
- Inc(pDest, 3);
- Inc(pSource, 3);
- end;
- end;
-
- begin
- if not (ftJPEG in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveJpg - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- if not init_libJPEG then
- raise Exception.Create('SaveJPG - unable to initialize libJPEG.');
-
- try
- FillChar(jpeg, SizeOf(jpeg_compress_struct), $00);
- FillChar(jpeg_err, SizeOf(jpeg_error_mgr), $00);
-
- // error managment
- jpeg.err := jpeg_std_error(@jpeg_err);
- jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
- jpeg_err.output_message := glBitmap_libJPEG_output_message;
-
- // compression struct
- jpeg_create_compress(@jpeg);
-
- // allocation space for streaming methods
- jpeg.dest := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_dest_mgr));
-
- // seeting up custom functions
- with glBitmap_libJPEG_dest_mgr_ptr(jpeg.dest)^ do begin
- pub.init_destination := glBitmap_libJPEG_init_destination;
- pub.empty_output_buffer := glBitmap_libJPEG_empty_output_buffer;
- pub.term_destination := glBitmap_libJPEG_term_destination;
-
- pub.next_output_byte := @DestBuffer[1];
- pub.free_in_buffer := Length(DestBuffer);
-
- DestStream := Stream;
- end;
-
- // very important state
- jpeg.global_state := CSTATE_START;
- jpeg.image_width := Width;
- jpeg.image_height := Height;
- case InternalFormat of
- ifAlpha, ifLuminance, ifDepth8: begin
- jpeg.input_components := 1;
- jpeg.in_color_space := JCS_GRAYSCALE;
- end;
- ifRGB8, ifBGR8: begin
- jpeg.input_components := 3;
- jpeg.in_color_space := JCS_RGB;
- end;
- end;
-
- jpeg_set_defaults(@jpeg);
- jpeg_set_quality(@jpeg, 95, true);
- jpeg_start_compress(@jpeg, true);
- pTemp := Data;
-
- if InternalFormat = ifBGR8 then
- GetMem(pTemp2, fRowSize)
- else
- pTemp2 := pTemp;
-
- try
- for Row := 0 to jpeg.image_height -1 do begin
- // prepare row
- if InternalFormat = ifBGR8 then
- CopyRow(pTemp2, pTemp)
- else
- pTemp2 := pTemp;
-
- // write row
- jpeg_write_scanlines(@jpeg, @pTemp2, 1);
- inc(pTemp, fRowSize);
- end;
- finally
- // free memory
- if InternalFormat = ifBGR8 then
- FreeMem(pTemp2);
- end;
- jpeg_finish_compress(@jpeg);
- jpeg_destroy_compress(@jpeg);
- finally
- quit_libJPEG;
- end;
- end;
-
- {$ELSEIF DEFINED(GLB_DELPHI_JPEG)}
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveJPEG(Stream: TStream);
- var
- Bmp: TBitmap;
- Jpg: TJPEGImage;
- begin
- if not (ftJPEG in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveJpg - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- Bmp := TBitmap.Create;
- try
- Jpg := TJPEGImage.Create;
- try
- AssignToBitmap(Bmp);
- if FInternalFormat in [ifAlpha, ifLuminance, ifDepth8] then begin
- Jpg.Grayscale := true;
- Jpg.PixelFormat := jf8Bit;
- end;
- Jpg.Assign(Bmp);
- Jpg.SaveToStream(Stream);
- finally
- FreeAndNil(Jpg);
- end;
- finally
- FreeAndNil(Bmp);
- end;
- end;
- {$ENDIF}
- {$ENDIF}
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //BMP/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- const
- BMP_MAGIC = $4D42;
-
- BMP_COMP_RGB = 0;
- BMP_COMP_RLE8 = 1;
- BMP_COMP_RLE4 = 2;
- BMP_COMP_BITFIELDS = 3;
-
- type
- TBMPHeader = packed record
- bfType: Word;
- bfSize: Cardinal;
- bfReserved1: Word;
- bfReserved2: Word;
- bfOffBits: Cardinal;
- end;
-
- TBMPInfo = packed record
- biSize: Cardinal;
- biWidth: Longint;
- biHeight: Longint;
- biPlanes: Word;
- biBitCount: Word;
- biCompression: Cardinal;
- biSizeImage: Cardinal;
- biXPelsPerMeter: Longint;
- biYPelsPerMeter: Longint;
- biClrUsed: Cardinal;
- biClrImportant: Cardinal;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadBMP(const aStream: TStream): Boolean;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function ReadInfo(out aInfo: TBMPInfo; out aMask: TglBitmapColorRec): TglBitmapFormat;
- begin
- result := tfEmpty;
- aStream.Read(aInfo{%H-}, SizeOf(aInfo));
- FillChar(aMask{%H-}, SizeOf(aMask), 0);
-
- //Read Compression
- case aInfo.biCompression of
- BMP_COMP_RLE4,
- BMP_COMP_RLE8: begin
- raise EglBitmapException.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 EglBitmapException.Create('Bitfields are only supported for 16bit and 32bit formats');
- end;
- end;
-
- //get suitable format
- case aInfo.biBitCount of
- 8: result := tfLuminance8;
- 16: result := tfBGR5;
- 24: result := tfBGR8;
- 32: result := tfBGRA8;
- end;
- end;
-
- function ReadColorTable(var aFormat: TglBitmapFormat; const aInfo: TBMPInfo): TbmpColorTableFormat;
- var
- i, c: Integer;
- ColorTable: TbmpColorTable;
- begin
- result := nil;
- if (aInfo.biBitCount >= 16) then
- exit;
- aFormat := tfLuminance8;
- c := aInfo.biClrUsed;
- if (c = 0) then
- c := 1 shl aInfo.biBitCount;
- SetLength(ColorTable, c);
- for i := 0 to c-1 do begin
- aStream.Read(ColorTable[i], SizeOf(TbmpColorTableEnty));
- if (ColorTable[i].r <> ColorTable[i].g) or (ColorTable[i].g <> ColorTable[i].b) then
- aFormat := tfRGB8;
- end;
-
- result := TbmpColorTableFormat.Create;
- result.PixelSize := aInfo.biBitCount / 8;
- result.ColorTable := ColorTable;
- result.Range := glBitmapColorRec($FF, $FF, $FF, $00);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- function CheckBitfields(var aFormat: TglBitmapFormat; const aMask: TglBitmapColorRec;
- const aInfo: TBMPInfo): TbmpBitfieldFormat;
- var
- TmpFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- begin
- result := nil;
- if (aMask.r <> 0) or (aMask.g <> 0) or (aMask.b <> 0) or (aMask.a <> 0) then begin
- for TmpFormat := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- FormatDesc := TFormatDescriptor.Get(TmpFormat);
- if FormatDesc.MaskMatch(aMask.r, aMask.g, aMask.b, aMask.a) then begin
- aFormat := FormatDesc.Format;
- exit;
- end;
- end;
-
- if (aMask.a = 0) and TFormatDescriptor.Get(aFormat).HasAlpha then
- aFormat := TFormatDescriptor.Get(aFormat).WithoutAlpha;
- if (aMask.a <> 0) and not TFormatDescriptor.Get(aFormat).HasAlpha then
- aFormat := TFormatDescriptor.Get(aFormat).WithAlpha;
-
- result := TbmpBitfieldFormat.Create;
- result.PixelSize := aInfo.biBitCount / 8;
- result.RedMask := aMask.r;
- result.GreenMask := aMask.g;
- result.BlueMask := aMask.b;
- result.AlphaMask := aMask.a;
- end;
- end;
-
- var
- //simple types
- StartPos: Int64;
- ImageSize, rbLineSize, wbLineSize, Padding, i: Integer;
- PaddingBuff: Cardinal;
- LineBuf, ImageData, TmpData: PByte;
- SourceMD, DestMD: Pointer;
- BmpFormat: TglBitmapFormat;
-
- //records
- Mask: TglBitmapColorRec;
- Header: TBMPHeader;
- Info: TBMPInfo;
-
- //classes
- SpecialFormat: TFormatDescriptor;
- FormatDesc: TFormatDescriptor;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////
- procedure SpecialFormatReadLine(aData: PByte; aLineBuf: PByte);
- var
- i: Integer;
- Pixel: TglBitmapPixelData;
- begin
- aStream.Read(aLineBuf^, rbLineSize);
- SpecialFormat.PreparePixel(Pixel);
- for i := 0 to Info.biWidth-1 do begin
- SpecialFormat.Unmap(aLineBuf, Pixel, SourceMD);
- glBitmapConvertPixel(Pixel, SpecialFormat, FormatDesc);
- FormatDesc.Map(Pixel, aData, DestMD);
- end;
- end;
-
- begin
- result := false;
- BmpFormat := tfEmpty;
- SpecialFormat := nil;
- LineBuf := nil;
- SourceMD := nil;
- DestMD := nil;
-
- // Header
- StartPos := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
-
- if Header.bfType = BMP_MAGIC then begin
- try try
- BmpFormat := ReadInfo(Info, Mask);
- SpecialFormat := ReadColorTable(BmpFormat, Info);
- if not Assigned(SpecialFormat) then
- SpecialFormat := CheckBitfields(BmpFormat, Mask, Info);
- aStream.Position := StartPos + Header.bfOffBits;
-
- if (BmpFormat <> tfEmpty) then begin
- FormatDesc := TFormatDescriptor.Get(BmpFormat);
- rbLineSize := Round(Info.biWidth * Info.biBitCount / 8); //ReadBuffer LineSize
- wbLineSize := Trunc(Info.biWidth * FormatDesc.PixelSize);
- Padding := (((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3) - rbLineSize;
-
- //get Memory
- DestMD := FormatDesc.CreateMappingData;
- ImageSize := FormatDesc.GetSize(Info.biWidth, abs(Info.biHeight));
- GetMem(ImageData, ImageSize);
- if Assigned(SpecialFormat) then begin
- GetMem(LineBuf, rbLineSize); //tmp Memory for converting Bitfields
- SourceMD := SpecialFormat.CreateMappingData;
- end;
-
- //read Data
- try try
- FillChar(ImageData^, ImageSize, $FF);
- TmpData := ImageData;
- if (Info.biHeight > 0) then
- Inc(TmpData, wbLineSize * (Info.biHeight-1));
- for i := 0 to Abs(Info.biHeight)-1 do begin
- if Assigned(SpecialFormat) then
- SpecialFormatReadLine(TmpData, LineBuf) //if is special format read and convert data
- else
- aStream.Read(TmpData^, wbLineSize); //else only read data
- if (Info.biHeight > 0) then
- dec(TmpData, wbLineSize)
- else
- inc(TmpData, wbLineSize);
- aStream.Read(PaddingBuff{%H-}, Padding);
- end;
- SetDataPointer(ImageData, BmpFormat, Info.biWidth, abs(Info.biHeight));
- result := true;
- finally
- if Assigned(LineBuf) then
- FreeMem(LineBuf);
- if Assigned(SourceMD) then
- SpecialFormat.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- end;
- except
- FreeMem(ImageData);
- raise;
- end;
- end else
- raise EglBitmapException.Create('LoadBMP - No suitable format found');
- except
- aStream.Position := StartPos;
- raise;
- end;
- finally
- FreeAndNil(SpecialFormat);
- end;
- end
- else aStream.Position := StartPos;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveBMP(const aStream: TStream);
- var
- Header: TBMPHeader;
- Info: TBMPInfo;
- Converter: TbmpColorTableFormat;
- FormatDesc: TFormatDescriptor;
- SourceFD, DestFD: Pointer;
- pData, srcData, dstData, ConvertBuffer: pByte;
-
- Pixel: TglBitmapPixelData;
- ImageSize, wbLineSize, rbLineSize, Padding, LineIdx, PixelIdx: Integer;
- RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
-
- PaddingBuff: Cardinal;
-
- function GetLineWidth : Integer;
- begin
- result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
- end;
-
- begin
- if not (ftBMP in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create('SaveBMP');
-
- Converter := nil;
- FormatDesc := TFormatDescriptor.Get(Format);
- ImageSize := FormatDesc.GetSize(Dimension);
-
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.bfType := BMP_MAGIC;
- Header.bfSize := SizeOf(Header) + SizeOf(Info) + ImageSize;
- Header.bfReserved1 := 0;
- Header.bfReserved2 := 0;
- Header.bfOffBits := SizeOf(Header) + SizeOf(Info);
-
- FillChar(Info{%H-}, SizeOf(Info), 0);
- Info.biSize := SizeOf(Info);
- Info.biWidth := Width;
- Info.biHeight := Height;
- Info.biPlanes := 1;
- Info.biCompression := BMP_COMP_RGB;
- Info.biSizeImage := ImageSize;
-
- try
- case Format of
- tfLuminance4: begin
- Info.biBitCount := 4;
- Header.bfSize := Header.bfSize + 16 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 16 * SizeOf(Cardinal); //16 ColorTable entries
- Converter := TbmpColorTableFormat.Create;
- Converter.PixelSize := 0.5;
- Converter.Format := Format;
- Converter.Range := glBitmapColorRec($F, $F, $F, $0);
- Converter.CreateColorTable;
- end;
-
- tfR3G3B2, tfLuminance8: begin
- Info.biBitCount := 8;
- Header.bfSize := Header.bfSize + 256 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 256 * SizeOf(Cardinal); //256 ColorTable entries
- Converter := TbmpColorTableFormat.Create;
- Converter.PixelSize := 1;
- Converter.Format := Format;
- if (Format = tfR3G3B2) then begin
- Converter.Range := glBitmapColorRec($7, $7, $3, $0);
- Converter.Shift := glBitmapShiftRec(0, 3, 6, 0);
- end else
- Converter.Range := glBitmapColorRec($FF, $FF, $FF, $0);
- Converter.CreateColorTable;
- end;
-
- tfRGB4, tfRGB5, tfR5G6B5, tfRGB5A1, tfRGBA4,
- tfBGR4, tfBGR5, tfB5G6R5, tfBGR5A1, tfBGRA4: begin
- Info.biBitCount := 16;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
-
- tfBGR8, tfRGB8: begin
- Info.biBitCount := 24;
- end;
-
- tfRGB10, tfRGB10A2, tfRGBA8,
- tfBGR10, tfBGR10A2, tfBGRA8: begin
- Info.biBitCount := 32;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
- else
- raise EglBitmapUnsupportedFormat.Create('SaveBMP - ' + UNSUPPORTED_FORMAT);
- end;
- Info.biXPelsPerMeter := 2835;
- Info.biYPelsPerMeter := 2835;
-
- // prepare bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
-
- RedMask := FormatDesc.RedMask;
- GreenMask := FormatDesc.GreenMask;
- BlueMask := FormatDesc.BlueMask;
- AlphaMask := FormatDesc.AlphaMask;
- end;
-
- // headers
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Info, SizeOf(Info));
-
- // colortable
- if Assigned(Converter) then
- aStream.Write(Converter.ColorTable[0].b,
- SizeOf(TbmpColorTableEnty) * Length(Converter.ColorTable));
-
- // bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- aStream.Write(RedMask, SizeOf(Cardinal));
- aStream.Write(GreenMask, SizeOf(Cardinal));
- aStream.Write(BlueMask, SizeOf(Cardinal));
- aStream.Write(AlphaMask, SizeOf(Cardinal));
- end;
-
- // image data
- rbLineSize := Round(Info.biWidth * FormatDesc.PixelSize);
- wbLineSize := Round(Info.biWidth * Info.biBitCount / 8);
- Padding := GetLineWidth - wbLineSize;
- PaddingBuff := 0;
-
- pData := Data;
- inc(pData, (Height-1) * rbLineSize);
-
- // prepare row buffer. But only for RGB because RGBA supports color masks
- // so it's possible to change color within the image.
- if Assigned(Converter) then begin
- FormatDesc.PreparePixel(Pixel);
- GetMem(ConvertBuffer, wbLineSize);
- SourceFD := FormatDesc.CreateMappingData;
- DestFD := Converter.CreateMappingData;
- end else
- ConvertBuffer := nil;
-
- try
- for LineIdx := 0 to Height - 1 do begin
- // preparing row
- if Assigned(Converter) then begin
- srcData := pData;
- dstData := ConvertBuffer;
- for PixelIdx := 0 to Info.biWidth-1 do begin
- FormatDesc.Unmap(srcData, Pixel, SourceFD);
- glBitmapConvertPixel(Pixel, FormatDesc, Converter);
- Converter.Map(Pixel, dstData, DestFD);
- end;
- aStream.Write(ConvertBuffer^, wbLineSize);
- end else begin
- aStream.Write(pData^, rbLineSize);
- end;
- dec(pData, rbLineSize);
- if (Padding > 0) then
- aStream.Write(PaddingBuff, Padding);
- end;
- finally
- // destroy row buffer
- if Assigned(ConvertBuffer) then begin
- FormatDesc.FreeMappingData(SourceFD);
- Converter.FreeMappingData(DestFD);
- FreeMem(ConvertBuffer);
- end;
- end;
- finally
- if Assigned(Converter) then
- Converter.Free;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TGA/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- type
- TTGAHeader = packed record
- ImageID: Byte;
- ColorMapType: Byte;
- ImageType: Byte;
- //ColorMapSpec: Array[0..4] of Byte;
- ColorMapStart: Word;
- ColorMapLength: Word;
- ColorMapEntrySize: Byte;
- OrigX: Word;
- OrigY: Word;
- Width: Word;
- Height: Word;
- Bpp: Byte;
- ImageDesc: Byte;
- end;
-
- const
- TGA_UNCOMPRESSED_RGB = 2;
- TGA_UNCOMPRESSED_GRAY = 3;
- TGA_COMPRESSED_RGB = 10;
- TGA_COMPRESSED_GRAY = 11;
-
- TGA_NONE_COLOR_TABLE = 0;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadTGA(const aStream: TStream): Boolean;
- var
- Header: TTGAHeader;
- ImageData: System.PByte;
- StartPosition: Int64;
- PixelSize, LineSize: Integer;
- tgaFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- Counter: packed record
- X, Y: packed record
- low, high, dir: Integer;
- end;
- end;
-
- const
- CACHE_SIZE = $4000;
-
- ////////////////////////////////////////////////////////////////////////////////////////
- procedure ReadUncompressed;
- var
- i, j: Integer;
- buf, tmp1, tmp2: System.PByte;
- begin
- buf := nil;
- if (Counter.X.dir < 0) then
- buf := GetMem(LineSize);
- try
- while (Counter.Y.low <> Counter.Y.high + counter.Y.dir) do begin
- tmp1 := ImageData + (Counter.Y.low * LineSize); //pointer to LineStart
- if (Counter.X.dir < 0) then begin //flip X
- aStream.Read(buf^, LineSize);
- tmp2 := buf + LineSize - PixelSize; //pointer to last pixel in line
- for i := 0 to Header.Width-1 do begin //for all pixels in line
- for j := 0 to PixelSize-1 do begin //for all bytes in pixel
- tmp1^ := tmp2^;
- inc(tmp1);
- inc(tmp2);
- end;
- dec(tmp2, 2*PixelSize); //move 2 backwards, because j-loop moved 1 forward
- end;
- end else
- aStream.Read(tmp1^, LineSize);
- inc(Counter.Y.low, Counter.Y.dir); //move to next line index
- end;
- finally
- if Assigned(buf) then
- FreeMem(buf);
- end;
- end;
-
- ////////////////////////////////////////////////////////////////////////////////////////
- procedure ReadCompressed;
-
- /////////////////////////////////////////////////////////////////
- var
- TmpData: System.PByte;
- LinePixelsRead: Integer;
- procedure CheckLine;
- begin
- if (LinePixelsRead >= Header.Width) then begin
- LinePixelsRead := 0;
- inc(Counter.Y.low, Counter.Y.dir); //next line index
- TmpData := ImageData + Counter.Y.low * LineSize; //set line
- if (Counter.X.dir < 0) then //if x flipped then
- TmpData := TmpData + LineSize - PixelSize; //set last pixel
- end;
- end;
-
- /////////////////////////////////////////////////////////////////
- var
- Cache: PByte;
- CacheSize, CachePos: Integer;
- procedure CachedRead(out Buffer; Count: Integer);
- var
- BytesRead: Integer;
- begin
- if (CachePos + Count > CacheSize) then begin
- //if buffer overflow save non read bytes
- BytesRead := 0;
- if (CacheSize - CachePos > 0) then begin
- BytesRead := CacheSize - CachePos;
- Move(PByteArray(Cache)^[CachePos], Buffer{%H-}, BytesRead);
- inc(CachePos, BytesRead);
- end;
-
- //load cache from file
- CacheSize := Min(CACHE_SIZE, aStream.Size - aStream.Position);
- aStream.Read(Cache^, CacheSize);
- CachePos := 0;
-
- //read rest of requested bytes
- if (Count - BytesRead > 0) then begin
- Move(PByteArray(Cache)^[CachePos], TByteArray(Buffer)[BytesRead], Count - BytesRead);
- inc(CachePos, Count - BytesRead);
- end;
- end else begin
- //if no buffer overflow just read the data
- Move(PByteArray(Cache)^[CachePos], Buffer, Count);
- inc(CachePos, Count);
- end;
- end;
-
- procedure PixelToBuffer(const aData: PByte; var aBuffer: PByte);
- begin
- case PixelSize of
- 1: begin
- aBuffer^ := aData^;
- inc(aBuffer, Counter.X.dir);
- end;
- 2: begin
- PWord(aBuffer)^ := PWord(aData)^;
- inc(aBuffer, 2 * Counter.X.dir);
- end;
- 3: begin
- PByteArray(aBuffer)^[0] := PByteArray(aData)^[0];
- PByteArray(aBuffer)^[1] := PByteArray(aData)^[1];
- PByteArray(aBuffer)^[2] := PByteArray(aData)^[2];
- inc(aBuffer, 3 * Counter.X.dir);
- end;
- 4: begin
- PCardinal(aBuffer)^ := PCardinal(aData)^;
- inc(aBuffer, 4 * Counter.X.dir);
- end;
- end;
- end;
-
- var
- TotalPixelsToRead, TotalPixelsRead: Integer;
- Temp: Byte;
- buf: array [0..3] of Byte; //1 pixel is max 32bit long
- PixelRepeat: Boolean;
- PixelsToRead, PixelCount: Integer;
- begin
- CacheSize := 0;
- CachePos := 0;
-
- TotalPixelsToRead := Header.Width * Header.Height;
- TotalPixelsRead := 0;
- LinePixelsRead := 0;
-
- GetMem(Cache, CACHE_SIZE);
- try
- TmpData := ImageData + Counter.Y.low * LineSize; //set line
- if (Counter.X.dir < 0) then //if x flipped then
- TmpData := TmpData + LineSize - PixelSize; //set last pixel
-
- repeat
- //read CommandByte
- CachedRead(Temp, 1);
- PixelRepeat := (Temp and $80) > 0;
- PixelsToRead := (Temp and $7F) + 1;
- inc(TotalPixelsRead, PixelsToRead);
-
- if PixelRepeat then
- CachedRead(buf[0], PixelSize);
- while (PixelsToRead > 0) do begin
- CheckLine;
- PixelCount := Min(Header.Width - LinePixelsRead, PixelsToRead); //max read to EOL or EOF
- while (PixelCount > 0) do begin
- if not PixelRepeat then
- CachedRead(buf[0], PixelSize);
- PixelToBuffer(@buf[0], TmpData);
- inc(LinePixelsRead);
- dec(PixelsToRead);
- dec(PixelCount);
- end;
- end;
- until (TotalPixelsRead >= TotalPixelsToRead);
- finally
- FreeMem(Cache);
- end;
- end;
-
- function IsGrayFormat: Boolean;
- begin
- result := Header.ImageType in [TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_GRAY];
- end;
-
- begin
- result := false;
-
- // reading header to test file and set cursor back to begin
- StartPosition := aStream.Position;
- aStream.Read(Header{%H-}, SizeOf(Header));
-
- // no colormapped files
- if (Header.ColorMapType = TGA_NONE_COLOR_TABLE) and (Header.ImageType in [
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY]) then
- begin
- try
- if Header.ImageID <> 0 then // skip image ID
- aStream.Position := aStream.Position + Header.ImageID;
-
- case Header.Bpp of
- 8: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance8;
- 8: tgaFormat := tfAlpha8;
- end;
-
- 16: if IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfLuminance16;
- 8: tgaFormat := tfLuminance8Alpha8;
- end else case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfBGR5;
- 1: tgaFormat := tfBGR5A1;
- 4: tgaFormat := tfBGRA4;
- end;
-
- 24: if not IsGrayFormat then case (Header.ImageDesc and $F) of
- 0: tgaFormat := tfBGR8;
- end;
-
- 32: if not IsGrayFormat then case (Header.ImageDesc and $F) of
- 2: tgaFormat := tfBGR10A2;
- 8: tgaFormat := tfBGRA8;
- end;
- end;
-
- if (tgaFormat = tfEmpty) then
- raise EglBitmapException.Create('LoadTga - unsupported format');
-
- FormatDesc := TFormatDescriptor.Get(tgaFormat);
- PixelSize := FormatDesc.GetSize(1, 1);
- LineSize := FormatDesc.GetSize(Header.Width, 1);
-
- GetMem(ImageData, LineSize * Header.Height);
- try
- //column direction
- if ((Header.ImageDesc and (1 shl 4)) > 0) then begin
- Counter.X.low := Header.Height-1;;
- Counter.X.high := 0;
- Counter.X.dir := -1;
- end else begin
- Counter.X.low := 0;
- Counter.X.high := Header.Height-1;
- Counter.X.dir := 1;
- end;
-
- // Row direction
- if ((Header.ImageDesc and (1 shl 5)) > 0) then begin
- Counter.Y.low := 0;
- Counter.Y.high := Header.Height-1;
- Counter.Y.dir := 1;
- end else begin
- Counter.Y.low := Header.Height-1;;
- Counter.Y.high := 0;
- Counter.Y.dir := -1;
- end;
-
- // Read Image
- case Header.ImageType of
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
- ReadUncompressed;
- TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
- ReadCompressed;
- end;
-
- SetDataPointer(ImageData, tgaFormat, Header.Width, Header.Height);
- result := true;
- except
- FreeMem(ImageData);
- raise;
- end;
- finally
- aStream.Position := StartPosition;
- end;
- end
- else aStream.Position := StartPosition;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveTGA(const aStream: TStream);
- var
- Header: TTGAHeader;
- LineSize, Size, x, y: Integer;
- Pixel: TglBitmapPixelData;
- LineBuf, SourceData, DestData: PByte;
- SourceMD, DestMD: Pointer;
- FormatDesc: TFormatDescriptor;
- Converter: TFormatDescriptor;
- begin
- if not (ftTGA in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create('SaveTGA');
-
- //prepare header
- FillChar(Header{%H-}, SizeOf(Header), 0);
-
- //set ImageType
- if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8,
- tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8]) then
- Header.ImageType := TGA_UNCOMPRESSED_GRAY
- else
- Header.ImageType := TGA_UNCOMPRESSED_RGB;
-
- //set BitsPerPixel
- if (Format in [tfLuminance8, tfLuminance6Alpha2, tfLuminance4Alpha4, tfAlpha8]) then
- Header.Bpp := 8
- else if (Format in [tfLuminance16, tfLuminance12Alpha4, tfLuminance8Alpha8,
- tfRGB5, tfBGR5, tfRGB5A1, tfBGR5A1, tfRGBA4, tfBGRA4]) then
- Header.Bpp := 16
- else if (Format in [tfBGR8, tfRGB8]) then
- Header.Bpp := 24
- else
- Header.Bpp := 32;
-
- //set AlphaBitCount
- case Format of
- tfRGB5A1, tfBGR5A1:
- Header.ImageDesc := 1 and $F;
- tfRGB10A2, tfBGR10A2:
- Header.ImageDesc := 2 and $F;
- tfRGBA4, tfBGRA4:
- Header.ImageDesc := 4 and $F;
- tfAlpha8, tfLuminance8Alpha8, tfRGBA8, tfBGRA8:
- Header.ImageDesc := 8 and $F;
- end;
-
- Header.Width := Width;
- Header.Height := Height;
- Header.ImageDesc := Header.ImageDesc or $20; //flip y
- aStream.Write(Header, SizeOf(Header));
-
- // convert RGB(A) to BGR(A)
- Converter := nil;
- FormatDesc := TFormatDescriptor.Get(Format);
- Size := FormatDesc.GetSize(Dimension);
- if Format in [tfRGB5, tfRGB5A1, tfRGBA4, tfRGB8, tfRGB10A2, tfRGBA8] then begin
- if (FormatDesc.RGBInverted = tfEmpty) then
- raise EglBitmapException.Create('inverted RGB format is empty');
- Converter := TFormatDescriptor.Get(FormatDesc.RGBInverted);
- if not glBitmapColorRecCmp(Converter.Range, FormatDesc.Range) or
- (Converter.PixelSize <> FormatDesc.PixelSize) then
- raise EglBitmapException.Create('invalid inverted RGB format');
- end;
-
- if Assigned(Converter) then begin
- LineSize := FormatDesc.GetSize(Width, 1);
- LineBuf := GetMem(LineSize);
- SourceMD := FormatDesc.CreateMappingData;
- DestMD := Converter.CreateMappingData;
- try
- SourceData := Data;
- for y := 0 to Height-1 do begin
- DestData := LineBuf;
- for x := 0 to Width-1 do begin
- FormatDesc.Unmap(SourceData, Pixel, SourceMD);
- Converter.Map(Pixel, DestData, DestMD);
- end;
- aStream.Write(LineBuf^, LineSize);
- end;
- finally
- FreeMem(LineBuf);
- FormatDesc.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- end;
- end else
- aStream.Write(Data^, Size);
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //DDS/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- const
- DDS_MAGIC: Cardinal = $20534444;
-
- // DDS_header.dwFlags
- DDSD_CAPS = $00000001;
- DDSD_HEIGHT = $00000002;
- DDSD_WIDTH = $00000004;
- DDSD_PIXELFORMAT = $00001000;
-
- // DDS_header.sPixelFormat.dwFlags
- DDPF_ALPHAPIXELS = $00000001;
- DDPF_ALPHA = $00000002;
- DDPF_FOURCC = $00000004;
- DDPF_RGB = $00000040;
- DDPF_LUMINANCE = $00020000;
-
- // DDS_header.sCaps.dwCaps1
- DDSCAPS_TEXTURE = $00001000;
-
- // DDS_header.sCaps.dwCaps2
- DDSCAPS2_CUBEMAP = $00000200;
-
- D3DFMT_DXT1 = $31545844;
- D3DFMT_DXT3 = $33545844;
- D3DFMT_DXT5 = $35545844;
-
- type
- TDDSPixelFormat = packed record
- dwSize: Cardinal;
- dwFlags: Cardinal;
- dwFourCC: Cardinal;
- dwRGBBitCount: Cardinal;
- dwRBitMask: Cardinal;
- dwGBitMask: Cardinal;
- dwBBitMask: Cardinal;
- dwABitMask: Cardinal;
- end;
-
- TDDSCaps = packed record
- dwCaps1: Cardinal;
- dwCaps2: Cardinal;
- dwDDSX: Cardinal;
- dwReserved: Cardinal;
- end;
-
- TDDSHeader = packed record
- dwSize: Cardinal;
- dwFlags: Cardinal;
- dwHeight: Cardinal;
- dwWidth: Cardinal;
- dwPitchOrLinearSize: Cardinal;
- dwDepth: Cardinal;
- dwMipMapCount: Cardinal;
- dwReserved: array[0..10] of Cardinal;
- PixelFormat: TDDSPixelFormat;
- Caps: TDDSCaps;
- dwReserved2: Cardinal;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap.LoadDDS(const aStream: TStream): Boolean;
- var
- Header: TDDSHeader;
- Converter: TbmpBitfieldFormat;
-
- function GetDDSFormat: TglBitmapFormat;
- var
- fd: TFormatDescriptor;
- i: Integer;
- Range: TglBitmapColorRec;
- match: Boolean;
- begin
- result := tfEmpty;
- with Header.PixelFormat do begin
- // Compresses
- if ((dwFlags and DDPF_FOURCC) > 0) then begin
- case Header.PixelFormat.dwFourCC of
- D3DFMT_DXT1: result := tfS3tcDtx1RGBA;
- D3DFMT_DXT3: result := tfS3tcDtx3RGBA;
- D3DFMT_DXT5: result := tfS3tcDtx5RGBA;
- end;
- end else if ((Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0) then begin
-
- //find matching format
- for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- fd := TFormatDescriptor.Get(result);
- if fd.MaskMatch(dwRBitMask, dwGBitMask, dwBBitMask, dwABitMask) and
- (8 * fd.PixelSize = dwRGBBitCount) then
- exit;
- end;
-
- //find format with same Range
- Range.r := dwRBitMask;
- Range.g := dwGBitMask;
- Range.b := dwBBitMask;
- Range.a := dwABitMask;
- for i := 0 to 3 do begin
- while ((Range.arr[i] and 1) = 0) and (Range.arr[i] > 0) do
- Range.arr[i] := Range.arr[i] shr 1;
- end;
- for result := High(TglBitmapFormat) downto Low(TglBitmapFormat) do begin
- fd := TFormatDescriptor.Get(result);
- match := true;
- for i := 0 to 3 do
- if (fd.Range.arr[i] <> Range.arr[i]) then begin
- match := false;
- break;
- end;
- if match then
- break;
- end;
-
- //no format with same range found -> use default
- if (result = tfEmpty) then begin
- if (dwABitMask > 0) then
- result := tfBGRA8
- else
- result := tfBGR8;
- end;
-
- Converter := TbmpBitfieldFormat.Create;
- Converter.RedMask := dwRBitMask;
- Converter.GreenMask := dwGBitMask;
- Converter.BlueMask := dwBBitMask;
- Converter.AlphaMask := dwABitMask;
- Converter.PixelSize := dwRGBBitCount / 8;
- end;
- end;
- end;
-
- var
- StreamPos: Int64;
- x, y, LineSize, RowSize, Magic: Cardinal;
- NewImage, TmpData, RowData, SrcData: System.PByte;
- SourceMD, DestMD: Pointer;
- Pixel: TglBitmapPixelData;
- ddsFormat: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
-
- begin
- result := false;
- Converter := nil;
- StreamPos := aStream.Position;
-
- // Magic
- aStream.Read(Magic{%H-}, sizeof(Magic));
- if (Magic <> DDS_MAGIC) then begin
- aStream.Position := StreamPos;
- exit;
- end;
-
- //Header
- aStream.Read(Header{%H-}, sizeof(Header));
- if (Header.dwSize <> SizeOf(Header)) or
- ((Header.dwFlags and (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) <>
- (DDSD_PIXELFORMAT or DDSD_CAPS or DDSD_WIDTH or DDSD_HEIGHT)) then
- begin
- aStream.Position := StreamPos;
- exit;
- end;
-
- if ((Header.Caps.dwCaps1 and DDSCAPS2_CUBEMAP) > 0) then
- raise EglBitmapException.Create('LoadDDS - CubeMaps are not supported');
-
- ddsFormat := GetDDSFormat;
- try
- if (ddsFormat = tfEmpty) then
- raise EglBitmapException.Create('LoadDDS - unsupported Pixelformat found.');
-
- FormatDesc := TFormatDescriptor.Get(ddsFormat);
- LineSize := Trunc(Header.dwWidth * FormatDesc.PixelSize);
- GetMem(NewImage, Header.dwHeight * LineSize);
- try
- TmpData := NewImage;
-
- //Converter needed
- if Assigned(Converter) then begin
- RowSize := Round(Header.dwWidth * Header.PixelFormat.dwRGBBitCount / 8);
- GetMem(RowData, RowSize);
- SourceMD := Converter.CreateMappingData;
- DestMD := FormatDesc.CreateMappingData;
- try
- for y := 0 to Header.dwHeight-1 do begin
- TmpData := NewImage + y * LineSize;
- SrcData := RowData;
- aStream.Read(SrcData^, RowSize);
- for x := 0 to Header.dwWidth-1 do begin
- Converter.Unmap(SrcData, Pixel, SourceMD);
- glBitmapConvertPixel(Pixel, Converter, FormatDesc);
- FormatDesc.Map(Pixel, TmpData, DestMD);
- end;
- end;
- finally
- Converter.FreeMappingData(SourceMD);
- FormatDesc.FreeMappingData(DestMD);
- FreeMem(RowData);
- end;
- end else
-
- // Compressed
- if ((Header.PixelFormat.dwFlags and DDPF_FOURCC) > 0) then begin
- RowSize := Header.dwPitchOrLinearSize div Header.dwWidth;
- for Y := 0 to Header.dwHeight-1 do begin
- aStream.Read(TmpData^, RowSize);
- Inc(TmpData, LineSize);
- end;
- end else
-
- // Uncompressed
- if (Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS or DDPF_LUMINANCE)) > 0 then begin
- RowSize := (Header.PixelFormat.dwRGBBitCount * Header.dwWidth) shr 3;
- for Y := 0 to Header.dwHeight-1 do begin
- aStream.Read(TmpData^, RowSize);
- Inc(TmpData, LineSize);
- end;
- end else
- raise EglBitmapException.Create('LoadDDS - unsupported Pixelformat found.');
-
- SetDataPointer(NewImage, ddsFormat, Header.dwWidth, Header.dwHeight);
- result := true;
- except
- FreeMem(NewImage);
- raise;
- end;
- finally
- FreeAndNil(Converter);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap.SaveDDS(const aStream: TStream);
- var
- Header: TDDSHeader;
- FormatDesc: TFormatDescriptor;
- begin
- if not (ftDDS in FormatGetSupportedFiles(Format)) then
- raise EglBitmapUnsupportedFormat.Create('SaveDDS');
-
- FormatDesc := TFormatDescriptor.Get(Format);
-
- // Generell
- FillChar(Header{%H-}, SizeOf(Header), 0);
- Header.dwSize := SizeOf(Header);
- Header.dwFlags := DDSD_WIDTH or DDSD_HEIGHT or DDSD_CAPS or DDSD_PIXELFORMAT;
-
- Header.dwWidth := Max(1, Width);
- Header.dwHeight := Max(1, Height);
-
- // Caps
- Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
-
- // Pixelformat
- Header.PixelFormat.dwSize := sizeof(Header);
- if (FormatDesc.IsCompressed) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_FOURCC;
- case Format of
- tfS3tcDtx1RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT1;
- tfS3tcDtx3RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT3;
- tfS3tcDtx5RGBA: Header.PixelFormat.dwFourCC := D3DFMT_DXT5;
- end;
- end else if (Format in [tfAlpha8, tfAlpha16]) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHA;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end else if (FormatDesc.RedMask = FormatDesc.GreenMask) and (FormatDesc.GreenMask = FormatDesc.BlueMask) then begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_LUMINANCE;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end else begin
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_RGB;
- Header.PixelFormat.dwRGBBitCount := Round(FormatDesc.PixelSize * 8);
- Header.PixelFormat.dwRBitMask := FormatDesc.RedMask;
- Header.PixelFormat.dwGBitMask := FormatDesc.GreenMask;
- Header.PixelFormat.dwBBitMask := FormatDesc.BlueMask;
- Header.PixelFormat.dwABitMask := FormatDesc.AlphaMask;
- end;
-
- if (FormatDesc.HasAlpha) then
- Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
-
- aStream.Write(DDS_MAGIC, sizeof(DDS_MAGIC));
- aStream.Write(Header, SizeOf(Header));
- aStream.Write(Data^, FormatDesc.GetSize(Dimension));
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmap2D/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap2D.GetScanline(const aIndex: Integer): Pointer;
- begin
- if (aIndex >= Low(fLines)) and (aIndex <= High(fLines)) then
- result := fLines[aIndex]
- else
- result := nil;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.SetDataPointer(const 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
- (* TODO PixelFuncs
- fGetPixelFunc := GetPixel2DUnmap;
- fSetPixelFunc := SetPixel2DUnmap;
- *)
- // Assigning Data
- if Assigned(Data) then begin
- SetLength(fLines, GetHeight);
- LineWidth := Trunc(GetWidth * TFormatDescriptor.Get(Format).PixelSize);
-
- for Idx := 0 to GetHeight -1 do begin
- fLines[Idx] := Data;
- Inc(fLines[Idx], Idx * LineWidth);
- end;
- end
- else SetLength(fLines, 0);
- end else begin
- SetLength(fLines, 0);
- (*
- fSetPixelFunc := nil;
-
- case Format of
- ifDXT1:
- fGetPixelFunc := GetPixel2DDXT1;
- ifDXT3:
- fGetPixelFunc := GetPixel2DDXT3;
- ifDXT5:
- fGetPixelFunc := GetPixel2DDXT5;
- else
- fGetPixelFunc := nil;
- end;
- *)
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.UploadData(const aTarget: Cardinal; const aBuildWithGlu: Boolean);
- var
- FormatDesc: TFormatDescriptor;
- begin
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then begin
- glCompressedTexImage2D(Target, 0, FormatDesc.glInternalFormat, Width, Height, 0, FormatDesc.GetSize(fDimension), Data)
- end else if aBuildWithGlu then begin
- gluBuild2DMipmaps(aTarget, FormatDesc.Components, Width, Height,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data)
- end else begin
- glTexImage2D(aTarget, 0, FormatDesc.glInternalFormat, Width, Height, 0,
- FormatDesc.glFormat, FormatDesc.glDataFormat, Data);
- end;
-
- // Freigeben
- if (FreeDataAfterGenTexture) then
- FreeData;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.AfterConstruction;
- begin
- inherited;
- Target := GL_TEXTURE_2D;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat);
- var
- Temp: pByte;
- Size, w, h: Integer;
- FormatDesc: TFormatDescriptor;
- begin
- FormatDesc := TFormatDescriptor.Get(Format);
- if FormatDesc.IsCompressed then
- raise EglBitmapUnsupportedFormat.Create('TglBitmap2D.GrabScreen');
-
- 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, Format, w, h);
- FlipVert;
- except
- FreeMem(Temp);
- raise;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.GetDataFromTexture;
- var
- Temp: PByte;
- TempWidth, TempHeight: Integer;
- TempIntFormat: Cardinal;
- IntFormat, f: TglBitmapFormat;
- FormatDesc: TFormatDescriptor;
- begin
- Bind;
-
- // Request Data
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_WIDTH, @TempWidth);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_HEIGHT, @TempHeight);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_INTERNAL_FORMAT, @TempIntFormat);
-
- IntFormat := tfEmpty;
- for f := Low(TglBitmapFormat) to High(TglBitmapFormat) do begin
- FormatDesc := TFormatDescriptor.Get(f);
- if (FormatDesc.glInternalFormat = TempIntFormat) then begin
- IntFormat := FormatDesc.Format;
- break;
- end;
- end;
-
- // Getting data from OpenGL
- FormatDesc := TFormatDescriptor.Get(IntFormat);
- GetMem(Temp, FormatDesc.GetSize(TempWidth, TempHeight));
- try
- if FormatDesc.IsCompressed then
- glGetCompressedTexImage(Target, 0, Temp)
- else
- glGetTexImage(Target, 0, FormatDesc.glInternalFormat, FormatDesc.glDataFormat, Temp);
- SetDataPointer(Temp, IntFormat, TempWidth, TempHeight);
- except
- FreeMem(Temp);
- raise;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.GenTexture(const aTestTextureSize: Boolean);
- var
- BuildWithGlu, PotTex, TexRec: Boolean;
- TexSize: Integer;
- begin
- if Assigned(Data) then begin
- // Check Texture Size
- if (aTestTextureSize) then begin
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
-
- if ((Height > TexSize) or (Width > TexSize)) then
- raise EglBitmapSizeToLargeException.Create('TglBitmap2D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
-
- PotTex := IsPowerOfTwo(Height) and IsPowerOfTwo(Width);
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and (Target = GL_TEXTURE_RECTANGLE);
-
- if not (PotTex or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwoException.Create('TglBitmap2D.GenTexture - Rendercontex dosn''t support non power of two texture.');
- end;
-
- CreateId;
- SetupParameters(BuildWithGlu);
- UploadData(Target, BuildWithGlu);
- glAreTexturesResident(1, @fID, @fIsResident);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- function TglBitmap2D.FlipHorz: Boolean;
- var
- Col, Row: Integer;
- TempDestData, DestData, SourceData: PByte;
- ImgSize: Integer;
- begin
- result := inherited FlipHorz;
- if Assigned(Data) then begin
- SourceData := Data;
- ImgSize := Height * fRowSize;
- GetMem(DestData, ImgSize);
- try
- TempDestData := DestData;
- Dec(TempDestData, fRowSize + fPixelSize);
- for Row := 0 to Height -1 do begin
- Inc(TempDestData, fRowSize * 2);
- for Col := 0 to Width -1 do begin
- Move(SourceData^, TempDestData^, fPixelSize);
- Inc(SourceData, fPixelSize);
- Dec(TempDestData, fPixelSize);
- end;
- end;
- SetDataPointer(DestData, Format);
- result := true;
- except
- 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);
- result := true;
- except
- FreeMem(DestData);
- raise;
- end;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //TglBitmap2D - ToNormalMap///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- type
- TMatrixItem = record
- X, Y: Integer;
- W: Single;
- end;
-
- PglBitmapToNormalMapRec = ^TglBitmapToNormalMapRec;
- TglBitmapToNormalMapRec = Record
- Scale: Single;
- Heights: array of Single;
- MatrixU : array of TMatrixItem;
- MatrixV : array of TMatrixItem;
- end;
-
- const
- ONE_OVER_255 = 1 / 255;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapToNormalMapPrepareFunc(var FuncRec: TglBitmapFunctionRec);
- var
- Val: Single;
- begin
- with FuncRec do begin
- Val :=
- Source.Data.r * LUMINANCE_WEIGHT_R +
- Source.Data.g * LUMINANCE_WEIGHT_G +
- Source.Data.b * LUMINANCE_WEIGHT_B;
- PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Val * ONE_OVER_255;
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapToNormalMapPrepareAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do
- PglBitmapToNormalMapRec(Args)^.Heights[Position.Y * Size.X + Position.X] := Source.Data.a * ONE_OVER_255;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure glBitmapToNormalMapFunc (var FuncRec: TglBitmapFunctionRec);
- type
- TVec = Array[0..2] of Single;
- var
- Idx: Integer;
- du, dv: Double;
- Len: Single;
- Vec: TVec;
-
- function GetHeight(X, Y: Integer): Single;
- begin
- with FuncRec do begin
- X := Max(0, Min(Size.X -1, X));
- Y := Max(0, Min(Size.Y -1, Y));
- result := PglBitmapToNormalMapRec(Args)^.Heights[Y * Size.X + X];
- end;
- end;
-
- begin
- with FuncRec do begin
- with PglBitmapToNormalMapRec(Args)^ do begin
- du := 0;
- for Idx := Low(MatrixU) to High(MatrixU) do
- du := du + GetHeight(Position.X + MatrixU[Idx].X, Position.Y + MatrixU[Idx].Y) * MatrixU[Idx].W;
-
- dv := 0;
- for Idx := Low(MatrixU) to High(MatrixU) do
- dv := dv + GetHeight(Position.X + MatrixV[Idx].X, Position.Y + MatrixV[Idx].Y) * MatrixV[Idx].W;
-
- Vec[0] := -du * Scale;
- Vec[1] := -dv * Scale;
- Vec[2] := 1;
- end;
-
- // Normalize
- Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
- if Len <> 0 then begin
- Vec[0] := Vec[0] * Len;
- Vec[1] := Vec[1] * Len;
- Vec[2] := Vec[2] * Len;
- end;
-
- // Farbe zuweisem
- Dest.Data.r := Trunc((Vec[0] + 1) * 127.5);
- Dest.Data.g := Trunc((Vec[1] + 1) * 127.5);
- Dest.Data.b := Trunc((Vec[2] + 1) * 127.5);
- end;
- end;
-
- //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- procedure TglBitmap2D.ToNormalMap(const aFunc: TglBitmapNormalMapFunc; const aScale: Single; const aUseAlpha: Boolean);
- var
- Rec: TglBitmapToNormalMapRec;
-
- procedure SetEntry (var Matrix: array of TMatrixItem; Index, X, Y: Integer; W: Single);
- begin
- if (Index >= Low(Matrix)) and (Index <= High(Matrix)) then begin
- Matrix[Index].X := X;
- Matrix[Index].Y := Y;
- Matrix[Index].W := W;
- end;
- end;
-
- begin
- (* TODO Compression
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedFormatFormat.Create('TglBitmap2D.ToNormalMap - ' + UNSUPPORTED_FORMAT);
- *)
-
- if aScale > 100 then
- Rec.Scale := 100
- else if aScale < -100 then
- Rec.Scale := -100
- else
- Rec.Scale := aScale;
-
- SetLength(Rec.Heights, Width * Height);
- try
- case aFunc of
- nm4Samples: begin
- SetLength(Rec.MatrixU, 2);
- SetEntry(Rec.MatrixU, 0, -1, 0, -0.5);
- SetEntry(Rec.MatrixU, 1, 1, 0, 0.5);
-
- SetLength(Rec.MatrixV, 2);
- SetEntry(Rec.MatrixV, 0, 0, 1, 0.5);
- SetEntry(Rec.MatrixV, 1, 0, -1, -0.5);
- end;
-
- nmSobel: begin
- SetLength(Rec.MatrixU, 6);
- SetEntry(Rec.MatrixU, 0, -1, 1, -1.0);
- SetEntry(Rec.MatrixU, 1, -1, 0, -2.0);
- SetEntry(Rec.MatrixU, 2, -1, -1, -1.0);
- SetEntry(Rec.MatrixU, 3, 1, 1, 1.0);
- SetEntry(Rec.MatrixU, 4, 1, 0, 2.0);
- SetEntry(Rec.MatrixU, 5, 1, -1, 1.0);
-
- SetLength(Rec.MatrixV, 6);
- SetEntry(Rec.MatrixV, 0, -1, 1, 1.0);
- SetEntry(Rec.MatrixV, 1, 0, 1, 2.0);
- SetEntry(Rec.MatrixV, 2, 1, 1, 1.0);
- SetEntry(Rec.MatrixV, 3, -1, -1, -1.0);
- SetEntry(Rec.MatrixV, 4, 0, -1, -2.0);
- SetEntry(Rec.MatrixV, 5, 1, -1, -1.0);
- end;
-
- nm3x3: begin
- SetLength(Rec.MatrixU, 6);
- SetEntry(Rec.MatrixU, 0, -1, 1, -1/6);
- SetEntry(Rec.MatrixU, 1, -1, 0, -1/6);
- SetEntry(Rec.MatrixU, 2, -1, -1, -1/6);
- SetEntry(Rec.MatrixU, 3, 1, 1, 1/6);
- SetEntry(Rec.MatrixU, 4, 1, 0, 1/6);
- SetEntry(Rec.MatrixU, 5, 1, -1, 1/6);
-
- SetLength(Rec.MatrixV, 6);
- SetEntry(Rec.MatrixV, 0, -1, 1, 1/6);
- SetEntry(Rec.MatrixV, 1, 0, 1, 1/6);
- SetEntry(Rec.MatrixV, 2, 1, 1, 1/6);
- SetEntry(Rec.MatrixV, 3, -1, -1, -1/6);
- SetEntry(Rec.MatrixV, 4, 0, -1, -1/6);
- SetEntry(Rec.MatrixV, 5, 1, -1, -1/6);
- end;
-
- nm5x5: begin
- SetLength(Rec.MatrixU, 20);
- SetEntry(Rec.MatrixU, 0, -2, 2, -1 / 16);
- SetEntry(Rec.MatrixU, 1, -1, 2, -1 / 10);
- SetEntry(Rec.MatrixU, 2, 1, 2, 1 / 10);
- SetEntry(Rec.MatrixU, 3, 2, 2, 1 / 16);
- SetEntry(Rec.MatrixU, 4, -2, 1, -1 / 10);
- SetEntry(Rec.MatrixU, 5, -1, 1, -1 / 8);
- SetEntry(Rec.MatrixU, 6, 1, 1, 1 / 8);
- SetEntry(Rec.MatrixU, 7, 2, 1, 1 / 10);
- SetEntry(Rec.MatrixU, 8, -2, 0, -1 / 2.8);
- SetEntry(Rec.MatrixU, 9, -1, 0, -0.5);
- SetEntry(Rec.MatrixU, 10, 1, 0, 0.5);
- SetEntry(Rec.MatrixU, 11, 2, 0, 1 / 2.8);
- SetEntry(Rec.MatrixU, 12, -2, -1, -1 / 10);
- SetEntry(Rec.MatrixU, 13, -1, -1, -1 / 8);
- SetEntry(Rec.MatrixU, 14, 1, -1, 1 / 8);
- SetEntry(Rec.MatrixU, 15, 2, -1, 1 / 10);
- SetEntry(Rec.MatrixU, 16, -2, -2, -1 / 16);
- SetEntry(Rec.MatrixU, 17, -1, -2, -1 / 10);
- SetEntry(Rec.MatrixU, 18, 1, -2, 1 / 10);
- SetEntry(Rec.MatrixU, 19, 2, -2, 1 / 16);
-
- SetLength(Rec.MatrixV, 20);
- SetEntry(Rec.MatrixV, 0, -2, 2, 1 / 16);
- SetEntry(Rec.MatrixV, 1, -1, 2, 1 / 10);
- SetEntry(Rec.MatrixV, 2, 0, 2, 0.25);
- SetEntry(Rec.MatrixV, 3, 1, 2, 1 / 10);
- SetEntry(Rec.MatrixV, 4, 2, 2, 1 / 16);
- SetEntry(Rec.MatrixV, 5, -2, 1, 1 / 10);
- SetEntry(Rec.MatrixV, 6, -1, 1, 1 / 8);
- SetEntry(Rec.MatrixV, 7, 0, 1, 0.5);
- SetEntry(Rec.MatrixV, 8, 1, 1, 1 / 8);
- SetEntry(Rec.MatrixV, 9, 2, 1, 1 / 16);
- SetEntry(Rec.MatrixV, 10, -2, -1, -1 / 16);
- SetEntry(Rec.MatrixV, 11, -1, -1, -1 / 8);
- SetEntry(Rec.MatrixV, 12, 0, -1, -0.5);
- SetEntry(Rec.MatrixV, 13, 1, -1, -1 / 8);
- SetEntry(Rec.MatrixV, 14, 2, -1, -1 / 10);
- SetEntry(Rec.MatrixV, 15, -2, -2, -1 / 16);
- SetEntry(Rec.MatrixV, 16, -1, -2, -1 / 10);
- SetEntry(Rec.MatrixV, 17, 0, -2, -0.25);
- SetEntry(Rec.MatrixV, 18, 1, -2, -1 / 10);
- SetEntry(Rec.MatrixV, 19, 2, -2, -1 / 16);
- end;
- end;
-
- // Daten Sammeln
- if aUseAlpha and TFormatDescriptor.Get(Format).HasAlpha then
- AddFunc(glBitmapToNormalMapPrepareAlphaFunc, false, @Rec)
- else
- AddFunc(glBitmapToNormalMapPrepareFunc, false, @Rec);
- AddFunc(glBitmapToNormalMapFunc, false, @Rec);
- finally
- SetLength(Rec.Heights, 0);
- end;
- end;
-
-
-
-
-
-
-
-
-
- (*
- procedure TglBitmap1D.SetDataPointer(Data: pByte; Format: TglBitmapInternalFormat; Width, Height: Integer);
- var
- pTemp: pByte;
- Size: Integer;
- begin
- if Height > 1 then begin
- // extract first line of the data
- Size := FormatGetImageSize(glBitmapPosition(Width), Format);
- GetMem(pTemp, Size);
-
- Move(Data^, pTemp^, Size);
-
- FreeMem(Data);
- end else
- pTemp := Data;
-
- // set data pointer
- inherited SetDataPointer(pTemp, Format, Width);
-
- if FormatIsUncompressed(Format) then begin
- fUnmapFunc := FormatGetUnMapFunc(Format);
- fGetPixelFunc := GetPixel1DUnmap;
- end;
- end;
-
-
- procedure TglBitmap1D.GetPixel1DUnmap(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- var
- pTemp: pByte;
- begin
- pTemp := Data;
- Inc(pTemp, Pos.X * fPixelSize);
-
- fUnmapFunc(pTemp, Pixel);
- end;
-
-
- function TglBitmap1D.FlipHorz: Boolean;
- var
- Col: Integer;
- pTempDest, pDest, pSource: pByte;
- begin
- result := inherited FlipHorz;
-
- if Assigned(Data) and FormatIsUncompressed(InternalFormat) then begin
- pSource := Data;
-
- GetMem(pDest, fRowSize);
- try
- pTempDest := pDest;
-
- Inc(pTempDest, fRowSize);
- for Col := 0 to Width -1 do begin
- Move(pSource^, pTempDest^, fPixelSize);
-
- Inc(pSource, fPixelSize);
- Dec(pTempDest, fPixelSize);
- end;
-
- SetDataPointer(pDest, InternalFormat);
-
- result := true;
- finally
- FreeMem(pDest);
- end;
- end;
- end;
-
-
- procedure TglBitmap1D.UploadData (Target, Format, InternalFormat, Typ: Cardinal; BuildWithGlu: Boolean);
- begin
- // Upload data
- if Self.InternalFormat in [ifDXT1, ifDXT3, ifDXT5] then
- glCompressedTexImage1D(Target, 0, InternalFormat, Width, 0, Trunc(Width * FormatGetSize(Self.InternalFormat)), Data)
- else
-
- // Upload data
- if BuildWithGlu then
- gluBuild1DMipmaps(Target, InternalFormat, Width, Format, Typ, Data)
- else
- glTexImage1D(Target, 0, InternalFormat, Width, 0, Format, Typ, Data);
-
- // Freigeben
- if (FreeDataAfterGenTexture) then
- FreeData;
- end;
-
-
- procedure TglBitmap1D.GenTexture(TestTextureSize: Boolean);
- var
- BuildWithGlu, TexRec: Boolean;
- glFormat, glInternalFormat, glType: Cardinal;
- TexSize: Integer;
- begin
- if Assigned(Data) then begin
- // Check Texture Size
- if (TestTextureSize) then begin
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, @TexSize);
-
- if (Width > TexSize) then
- raise EglBitmapSizeToLargeException.Create('TglBitmap1D.GenTexture - The size for the texture is to large. It''s may be not conform with the Hardware.');
-
- TexRec := (GL_ARB_texture_rectangle or GL_EXT_texture_rectangle or GL_NV_texture_rectangle) and
- (Target = GL_TEXTURE_RECTANGLE_ARB);
-
- if not (IsPowerOfTwo (Width) or GL_ARB_texture_non_power_of_two or GL_VERSION_2_0 or TexRec) then
- raise EglBitmapNonPowerOfTwoException.Create('TglBitmap1D.GenTexture - Rendercontex dosn''t support non power of two texture.');
- end;
-
- CreateId;
-
- SetupParameters(BuildWithGlu);
- SelectFormat(InternalFormat, glFormat, glInternalFormat, glType);
-
- UploadData(Target, glFormat, glInternalFormat, glType, BuildWithGlu);
-
- // Infos sammeln
- glAreTexturesResident(1, @fID, @fIsResident);
- end;
- end;
-
-
- procedure TglBitmap1D.AfterConstruction;
- begin
- inherited;
-
- Target := GL_TEXTURE_1D;
- end;
-
-
- { TglBitmapCubeMap }
-
- procedure TglBitmapCubeMap.AfterConstruction;
- begin
- inherited;
-
- if not (GL_VERSION_1_3 or GL_ARB_texture_cube_map or GL_EXT_texture_cube_map) then
- raise EglBitmapException.Create('TglBitmapCubeMap.AfterConstruction - CubeMaps are unsupported.');
-
- SetWrap; // set all to GL_CLAMP_TO_EDGE
- Target := GL_TEXTURE_CUBE_MAP;
- fGenMode := GL_REFLECTION_MAP;
- end;
-
-
- procedure TglBitmapCubeMap.Bind(EnableTexCoordsGen, EnableTextureUnit: Boolean);
- begin
- inherited Bind (EnableTextureUnit);
-
- if EnableTexCoordsGen then begin
- glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, fGenMode);
- glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, fGenMode);
- glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, fGenMode);
- glEnable(GL_TEXTURE_GEN_S);
- glEnable(GL_TEXTURE_GEN_T);
- glEnable(GL_TEXTURE_GEN_R);
- end;
- end;
-
-
- procedure TglBitmapCubeMap.GenerateCubeMap(CubeTarget: Cardinal; TestTextureSize: Boolean);
- var
- glFormat, glInternalFormat, glType: Cardinal;
- BuildWithGlu: Boolean;
- TexSize: Integer;
- begin
- // Check Texture Size
- if (TestTextureSize) then begin
- glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, @TexSize);
-
- if ((Height > TexSize) or (Width > TexSize)) then
- raise EglBitmapSizeToLargeException.Create('TglBitmapCubeMap.GenTexture - The size for the Cubemap is to large. It''s may be not conform with the Hardware.');
-
- if not ((IsPowerOfTwo (Height) and IsPowerOfTwo (Width)) or GL_VERSION_2_0 or GL_ARB_texture_non_power_of_two) then
- raise EglBitmapNonPowerOfTwoException.Create('TglBitmapCubeMap.GenTexture - Cubemaps dosn''t support non power of two texture.');
- end;
-
- // create Texture
- if ID = 0 then begin
- CreateID;
- SetupParameters(BuildWithGlu);
- end;
-
- SelectFormat(InternalFormat, glFormat, glInternalFormat, glType);
-
- UploadData (CubeTarget, glFormat, glInternalFormat, glType, BuildWithGlu);
- end;
-
-
- procedure TglBitmapCubeMap.GenTexture(TestTextureSize: Boolean);
- begin
- Assert(false, 'TglBitmapCubeMap.GenTexture - Don''t call GenTextures directly.');
- end;
-
-
- procedure TglBitmapCubeMap.Unbind(DisableTexCoordsGen,
- DisableTextureUnit: Boolean);
- begin
- inherited Unbind (DisableTextureUnit);
-
- if DisableTexCoordsGen then begin
- glDisable(GL_TEXTURE_GEN_S);
- glDisable(GL_TEXTURE_GEN_T);
- glDisable(GL_TEXTURE_GEN_R);
- end;
- end;
-
-
- { TglBitmapNormalMap }
-
- type
- TVec = Array[0..2] of Single;
- TglBitmapNormalMapGetVectorFunc = procedure (var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
-
- PglBitmapNormalMapRec = ^TglBitmapNormalMapRec;
- TglBitmapNormalMapRec = record
- HalfSize : Integer;
- Func: TglBitmapNormalMapGetVectorFunc;
- end;
-
-
- procedure glBitmapNormalMapPosX(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := HalfSize;
- Vec[1] := - (Position.Y + 0.5 - HalfSize);
- Vec[2] := - (Position.X + 0.5 - HalfSize);
- end;
-
-
- procedure glBitmapNormalMapNegX(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := - HalfSize;
- Vec[1] := - (Position.Y + 0.5 - HalfSize);
- Vec[2] := Position.X + 0.5 - HalfSize;
- end;
-
-
- procedure glBitmapNormalMapPosY(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := Position.X + 0.5 - HalfSize;
- Vec[1] := HalfSize;
- Vec[2] := Position.Y + 0.5 - HalfSize;
- end;
-
-
- procedure glBitmapNormalMapNegY(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := Position.X + 0.5 - HalfSize;
- Vec[1] := - HalfSize;
- Vec[2] := - (Position.Y + 0.5 - HalfSize);
- end;
-
-
- procedure glBitmapNormalMapPosZ(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := Position.X + 0.5 - HalfSize;
- Vec[1] := - (Position.Y + 0.5 - HalfSize);
- Vec[2] := HalfSize;
- end;
-
-
- procedure glBitmapNormalMapNegZ(var Vec: TVec; const Position: TglBitmapPixelPosition; const HalfSize: Integer);
- begin
- Vec[0] := - (Position.X + 0.5 - HalfSize);
- Vec[1] := - (Position.Y + 0.5 - HalfSize);
- Vec[2] := - HalfSize;
- end;
-
-
- procedure glBitmapNormalMapFunc(var FuncRec: TglBitmapFunctionRec);
- var
- Vec : TVec;
- Len: Single;
- begin
- with FuncRec do begin
- with PglBitmapNormalMapRec (CustomData)^ do begin
- Func(Vec, Position, HalfSize);
-
- // Normalize
- Len := 1 / Sqrt(Sqr(Vec[0]) + Sqr(Vec[1]) + Sqr(Vec[2]));
- if Len <> 0 then begin
- Vec[0] := Vec[0] * Len;
- Vec[1] := Vec[1] * Len;
- Vec[2] := Vec[2] * Len;
- end;
-
- // Scale Vector and AddVectro
- Vec[0] := Vec[0] * 0.5 + 0.5;
- Vec[1] := Vec[1] * 0.5 + 0.5;
- Vec[2] := Vec[2] * 0.5 + 0.5;
- end;
-
- // Set Color
- Dest.Red := Round(Vec[0] * 255);
- Dest.Green := Round(Vec[1] * 255);
- Dest.Blue := Round(Vec[2] * 255);
- end;
- end;
-
-
- procedure TglBitmapNormalMap.AfterConstruction;
- begin
- inherited;
-
- fGenMode := GL_NORMAL_MAP;
- end;
-
-
- procedure TglBitmapNormalMap.GenerateNormalMap(Size: Integer;
- TestTextureSize: Boolean);
- var
- Rec: TglBitmapNormalMapRec;
- SizeRec: TglBitmapPixelPosition;
- begin
- Rec.HalfSize := Size div 2;
-
- FreeDataAfterGenTexture := false;
-
- SizeRec.Fields := [ffX, ffY];
- SizeRec.X := Size;
- SizeRec.Y := Size;
-
- // Positive X
- Rec.Func := glBitmapNormalMapPosX;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_X, TestTextureSize);
-
- // Negative X
- Rec.Func := glBitmapNormalMapNegX;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, TestTextureSize);
-
- // Positive Y
- Rec.Func := glBitmapNormalMapPosY;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, TestTextureSize);
-
- // Negative Y
- Rec.Func := glBitmapNormalMapNegY;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, TestTextureSize);
-
- // Positive Z
- Rec.Func := glBitmapNormalMapPosZ;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, TestTextureSize);
-
- // Negative Z
- Rec.Func := glBitmapNormalMapNegZ;
- LoadFromFunc (SizeRec, glBitmapNormalMapFunc, ifBGR8, @Rec);
- GenerateCubeMap(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, TestTextureSize);
- end;
- *)
-
- initialization
- glBitmapSetDefaultFormat(tfEmpty);
- glBitmapSetDefaultMipmap(mmMipmap);
- glBitmapSetDefaultFilter(GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR);
- glBitmapSetDefaultWrap (GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
-
- glBitmapSetDefaultFreeDataAfterGenTexture(true);
- glBitmapSetDefaultDeleteTextureOnFree (true);
-
- TFormatDescriptor.Init;
-
- {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- OpenGLInitialized := false;
- InitOpenGLCS := TCriticalSection.Create;
- {$ENDIF}
-
- finalization
- TFormatDescriptor.Finalize;
-
- {$IFDEF GLB_NATIVE_OGL_DYNAMIC}
- FreeAndNil(InitOpenGLCS);
- {$ENDIF}
-
- end.
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