|
- {***********************************************************
- 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;
-
- {.$MESSAGE warn 'Hey. I''m the glBitmap.pas and i need to be configured. My master tell me your preferences! ;)'}
- // Please uncomment the defines below to configure the glBitmap to your preferences.
- // If you have configured the unit you can uncomment the warning above.
-
- // ###### Start of preferences ################################################
-
- {$DEFINE GLB_NO_NATIVE_GL}
- // To enable the dglOpenGL.pas Header
- // With native GL then bindings are staticlly declared to support other headers
- // or use the glBitmap inside of DLLs (minimize codesize).
-
-
- {.$DEFINE GLB_SDL}
- // To enable the support for SDL_surfaces
-
- {.$DEFINE GLB_DELPHI}
- // To enable the support for TBitmap from Delphi (not lazarus)
-
-
- // *** image libs ***
-
- {.$DEFINE GLB_SDL_IMAGE}
- // To enable the support of SDL_image to load files. (READ ONLY)
- // If you enable SDL_image all other libraries will be ignored!
-
-
- {.$DEFINE GLB_PNGIMAGE}
- // 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
-
- {.$DEFINE GLB_LIB_PNG}
- // to use the libPNG http://www.libpng.org/
- // You will need an aditional header.
- // http://www.opengl24.de/index.php?cat=header&file=libpng
-
- {.$DEFINE GLB_DELPHI_JPEG}
- // if you enable delphi jpegs the libJPEG will be ignored
-
- {.$DEFINE GLB_LIB_JPEG}
- // to use the libJPEG http://www.ijg.org/
- // You will need an aditional header.
- // http://www.opengl24.de/index.php?cat=header&file=libjpeg
-
- // ###### End of preferences ##################################################
-
-
- // ###### PRIVATE. Do not change anything. ####################################
- // *** old defines for compatibility ***
- {$IFDEF NO_NATIVE_GL}
- {$DEFINE GLB_NO_NATIVE_GL}
- {$ENDIF}
- {$IFDEF pngimage}
- {$definde GLB_PNGIMAGE}
- {$ENDIF}
-
- // *** Delphi Versions ***
- {$IFDEF fpc}
- {$MODE Delphi}
-
- {$IFDEF CPUI386}
- {$DEFINE CPU386}
- {$ASMMODE INTEL}
- {$ENDIF}
-
- {$IFNDEF WINDOWS}
- {$linklib c}
- {$ENDIF}
- {$ENDIF}
-
- // *** checking define combinations ***
- {$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}
- {$ENDIF}
-
- {$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}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_PNG}
- {$DEFINE GLB_SUPPORT_PNG_READ}
- {$DEFINE GLB_SUPPORT_PNG_WRITE}
- {$ENDIF}
-
- {$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}
- {$ENDIF}
-
- {$IFDEF GLB_LIB_JPEG}
- {$DEFINE GLB_SUPPORT_JPEG_READ}
- {$DEFINE GLB_SUPPORT_JPEG_WRITE}
- {$ENDIF}
-
- // *** general options ***
- {$EXTENDEDSYNTAX ON}
- {$LONGSTRINGS ON}
- {$ALIGN ON}
- {$IFNDEF FPC}
- {$OPTIMIZATION ON}
- {$ENDIF}
-
- interface
-
- uses
- {$IFDEF GLB_NO_NATIVE_GL} dglOpenGL, {$ENDIF}
-
- {$IFDEF GLB_SDL} SDL, {$ENDIF}
- {$IFDEF GLB_DELPHI} Dialogs, Windows, 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;
- {$ENDIF}
-
- (* TODO dglOpenGL
- {$IFNDEF GLB_NO_NATIVE_GL}
- // Native OpenGL Implementation
- type
- PByteBool = ^ByteBool;
-
- {$IFDEF GLB_DELPHI}
- var
- gLastContext: HGLRC;
- {$ENDIF}
-
- const
- // Generell
- GL_VERSION = $1F02;
- GL_EXTENSIONS = $1F03;
-
- GL_TRUE = 1;
- GL_FALSE = 0;
-
- GL_TEXTURE_1D = $0DE0;
- GL_TEXTURE_2D = $0DE1;
-
- GL_MAX_TEXTURE_SIZE = $0D33;
- GL_PACK_ALIGNMENT = $0D05;
- GL_UNPACK_ALIGNMENT = $0CF5;
-
- // Textureformats
- GL_RGB = $1907;
- GL_RGB4 = $804F;
- GL_RGB8 = $8051;
- GL_RGBA = $1908;
- GL_RGBA4 = $8056;
- GL_RGBA8 = $8058;
- GL_BGR = $80E0;
- GL_BGRA = $80E1;
- GL_ALPHA4 = $803B;
- GL_ALPHA8 = $803C;
- GL_LUMINANCE4 = $803F;
- GL_LUMINANCE8 = $8040;
- GL_LUMINANCE4_ALPHA4 = $8043;
- GL_LUMINANCE8_ALPHA8 = $8045;
- GL_DEPTH_COMPONENT = $1902;
-
- GL_UNSIGNED_BYTE = $1401;
- GL_ALPHA = $1906;
- GL_LUMINANCE = $1909;
- GL_LUMINANCE_ALPHA = $190A;
-
- GL_TEXTURE_WIDTH = $1000;
- GL_TEXTURE_HEIGHT = $1001;
- GL_TEXTURE_INTERNAL_FORMAT = $1003;
- GL_TEXTURE_RED_SIZE = $805C;
- GL_TEXTURE_GREEN_SIZE = $805D;
- GL_TEXTURE_BLUE_SIZE = $805E;
- GL_TEXTURE_ALPHA_SIZE = $805F;
- GL_TEXTURE_LUMINANCE_SIZE = $8060;
-
- // Dataformats
- GL_UNSIGNED_SHORT_5_6_5 = $8363;
- 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_2_10_10_10_REV = $8368;
-
- // Filter
- GL_NEAREST = $2600;
- GL_LINEAR = $2601;
- GL_NEAREST_MIPMAP_NEAREST = $2700;
- GL_LINEAR_MIPMAP_NEAREST = $2701;
- GL_NEAREST_MIPMAP_LINEAR = $2702;
- GL_LINEAR_MIPMAP_LINEAR = $2703;
- GL_TEXTURE_MAG_FILTER = $2800;
- GL_TEXTURE_MIN_FILTER = $2801;
-
- // Wrapmodes
- GL_TEXTURE_WRAP_S = $2802;
- GL_TEXTURE_WRAP_T = $2803;
- GL_CLAMP = $2900;
- GL_REPEAT = $2901;
- GL_CLAMP_TO_EDGE = $812F;
- GL_CLAMP_TO_BORDER = $812D;
- GL_TEXTURE_WRAP_R = $8072;
-
- GL_MIRRORED_REPEAT = $8370;
-
- // Border Color
- GL_TEXTURE_BORDER_COLOR = $1004;
-
- // Texgen
- GL_NORMAL_MAP = $8511;
- GL_REFLECTION_MAP = $8512;
- GL_S = $2000;
- GL_T = $2001;
- GL_R = $2002;
- GL_TEXTURE_GEN_MODE = $2500;
- GL_TEXTURE_GEN_S = $0C60;
- GL_TEXTURE_GEN_T = $0C61;
- GL_TEXTURE_GEN_R = $0C62;
-
- // Cubemaps
- GL_MAX_CUBE_MAP_TEXTURE_SIZE = $851C;
- GL_TEXTURE_CUBE_MAP = $8513;
- GL_TEXTURE_BINDING_CUBE_MAP = $8514;
- GL_TEXTURE_CUBE_MAP_POSITIVE_X = $8515;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_X = $8516;
- GL_TEXTURE_CUBE_MAP_POSITIVE_Y = $8517;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Y = $8518;
- GL_TEXTURE_CUBE_MAP_POSITIVE_Z = $8519;
- GL_TEXTURE_CUBE_MAP_NEGATIVE_Z = $851A;
-
- GL_TEXTURE_RECTANGLE_ARB = $84F5;
-
- // GL_SGIS_generate_mipmap
- GL_GENERATE_MIPMAP = $8191;
-
- // GL_EXT_texture_compression_s3tc
- 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_EXT_texture_filter_anisotropic
- GL_TEXTURE_MAX_ANISOTROPY_EXT = $84FE;
- GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT = $84FF;
-
- // GL_ARB_texture_compression
- GL_COMPRESSED_RGB = $84ED;
- GL_COMPRESSED_RGBA = $84EE;
- GL_COMPRESSED_ALPHA = $84E9;
- GL_COMPRESSED_LUMINANCE = $84EA;
- GL_COMPRESSED_LUMINANCE_ALPHA = $84EB;
-
- // Extensions
- var
- GL_VERSION_1_2,
- GL_VERSION_1_3,
- GL_VERSION_1_4,
- GL_VERSION_2_0,
-
- GL_ARB_texture_border_clamp,
- GL_ARB_texture_cube_map,
- GL_ARB_texture_compression,
- GL_ARB_texture_non_power_of_two,
- GL_ARB_texture_rectangle,
- GL_ARB_texture_mirrored_repeat,
- GL_EXT_bgra,
- GL_EXT_texture_edge_clamp,
- GL_EXT_texture_cube_map,
- GL_EXT_texture_compression_s3tc,
- GL_EXT_texture_filter_anisotropic,
- GL_EXT_texture_rectangle,
- GL_NV_texture_rectangle,
- GL_IBM_texture_mirrored_repeat,
- GL_SGIS_generate_mipmap: Boolean;
-
- const
- {$IFDEF LINUX}
- libglu = 'libGLU.so.1';
- libopengl = 'libGL.so.1';
- {$else}
- libglu = 'glu32.dll';
- libopengl = 'opengl32.dll';
- {$ENDIF}
-
- {$IFDEF LINUX}
- function glXGetProcAddress(ProcName: PAnsiChar): Pointer; cdecl; external libopengl;
- {$else}
- function wglGetProcAddress(ProcName: PAnsiChar): Pointer; stdcall; external libopengl;
- {$ENDIF}
-
- function glGetString(name: Cardinal): PAnsiChar; {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- procedure glEnable(cap: Cardinal); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glDisable(cap: Cardinal); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glGetIntegerv(pname: Cardinal; params: PInteger); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- procedure glTexImage1D(target: Cardinal; level, internalformat, width, border: Integer; format, atype: Cardinal; const pixels: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glTexImage2D(target: Cardinal; level, internalformat, width, height, border: Integer; format, atype: Cardinal; const pixels: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- procedure glGenTextures(n: Integer; Textures: PCardinal); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glBindTexture(target: Cardinal; Texture: Cardinal); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glDeleteTextures(n: Integer; const textures: PCardinal); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- procedure glReadPixels(x, y: Integer; width, height: Integer; format, atype: Cardinal; pixels: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glPixelStorei(pname: Cardinal; param: Integer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexImage(target: Cardinal; level: Integer; format: Cardinal; _type: Cardinal; pixels: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- function glAreTexturesResident(n: Integer; const Textures: PCardinal; residences: PByteBool): ByteBool; {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glTexParameteri(target: Cardinal; pname: Cardinal; param: Integer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glTexParameterfv(target: Cardinal; pname: Cardinal; const params: PSingle); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glGetTexLevelParameteriv(target: Cardinal; level: Integer; pname: Cardinal; params: PInteger); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
- procedure glTexGeni(coord, pname: Cardinal; param: Integer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libopengl;
-
- function gluBuild1DMipmaps(Target: Cardinal; Components, Width: Integer; Format, atype: Cardinal; Data: Pointer): Integer; {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libglu;
- function gluBuild2DMipmaps(Target: Cardinal; Components, Width, Height: Integer; Format, aType: Cardinal; Data: Pointer): Integer; {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF} external libglu;
-
- var
- glCompressedTexImage2D : procedure(target: Cardinal; level: Integer; internalformat: Cardinal; width, height: Integer; border: Integer; imageSize: Integer; const data: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF}
- glCompressedTexImage1D : procedure(target: Cardinal; level: Integer; internalformat: Cardinal; width: Integer; border: Integer; imageSize: Integer; const data: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF}
- glGetCompressedTexImage : procedure(target: Cardinal; level: Integer; img: Pointer); {$IFDEF WINDOWS}stdcall; {$else}cdecl; {$ENDIF}
- {$ENDIF}
- *)
-
- type
- EglBitmapException = class(Exception);
- EglBitmapSizeToLargeException = class(EglBitmapException);
- EglBitmapNonPowerOfTwoException = class(EglBitmapException);
- EglBitmapUnsupportedInternalFormat = class(EglBitmapException);
-
- TglBitmapPixelDesc = packed record
- RedRange: Cardinal;
- GreenRange: Cardinal;
- BlueRange: Cardinal;
- AlphaRange: Cardinal;
-
- RedShift: Shortint;
- GreenShift: Shortint;
- BlueShift: Shortint;
- AlphaShift: Shortint;
- end;
-
- TglBitmapPixelData = packed record
- Red: Cardinal;
- Green: Cardinal;
- Blue: Cardinal;
- Alpha: Cardinal;
- PixelDesc: TglBitmapPixelDesc;
- end;
-
- TglBitmapPixelPositionFields = set of (ffX, ffY);
- TglBitmapPixelPosition = record
- Fields : TglBitmapPixelPositionFields;
- X : Word;
- Y : Word;
- end;
-
- const
- NULL_SIZE: TglBitmapPixelPosition = (Fields: []; X: 0; Y: 0);
-
- type
- TglBitmap = class;
-
- TglBitmapFunctionRec = record
- Sender : TglBitmap;
- Size: TglBitmapPixelPosition;
- Position: TglBitmapPixelPosition;
- Source: TglBitmapPixelData;
- Dest: TglBitmapPixelData;
- CustomData: Pointer;
- end;
-
- TglBitmapFunction = procedure(var FuncRec: TglBitmapFunctionRec);
-
- TglBitmapGetPixel = procedure (
- const Pos: TglBitmapPixelPosition;
- var Pixel: TglBitmapPixelData) of object;
-
- TglBitmapSetPixel = procedure (
- const Pos: TglBitmapPixelPosition;
- const Pixel: TglBitmapPixelData) of object;
-
- 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);
- TglBitmapFormat = (
- tfRed = GL_RED,
- tfGreen = GL_GREEN,
- tfBlue = GL_BLUE,
- tfAlpha = GL_ALPHA,
- tfRGB = GL_RGB,
- tfBGR = GL_BGR,
- tfRGBA = GL_RGBA,
- tfBGRA = GL_BGRA,
- tfLuminance = GL_LUMINANCE,
- tfLuminanceAlpha = GL_LUMINANCE_ALPHA
- );
- TglBitmapInternalFormat = (
- ifAlpha4 = GL_ALPHA4,
- ifAlpha8 = GL_ALPHA8,
- ifAlpha12 = GL_ALPHA12,
- ifAlpha16 = GL_ALPHA16,
-
- ifLuminance4 = GL_LUMINANCE4,
- ifLuminance8 = GL_LUMINANCE8,
- ifLuminance12 = GL_LUMINANCE12,
- ifLuminance16 = GL_LUMINANCE16,
-
- ifLuminance4Alpha4 = GL_LUMINANCE4_ALPHA4,
- ifLuminance6Alpha2 = GL_LUMINANCE6_ALPHA2,
- ifLuminance8Alpha8 = GL_LUMINANCE8_ALPHA8,
- ifLuminance12Alpha4 = GL_LUMINANCE12_ALPHA4,
- ifLuminance12Alpha12 = GL_LUMINANCE12_ALPHA12,
- ifLuminance16Alpha16 = GL_LUMINANCE16_ALPHA16,
-
- ifR3G3B2 = GL_R3_G3_B2,
- ifRGB4 = GL_RGB4,
- ifRGB5 = GL_RGB5,
- ifRGB8 = GL_RGB8,
- ifRGB10 = GL_RGB10,
- ifRGB12 = GL_RGB12,
- ifRGB16 = GL_RGB16,
-
- ifRGBA2 = GL_RGBA2,
- ifRGBA4 = GL_RGBA4,
- ifRGB5A1 = GL_RGB5_A1,
- ifRGBA8 = GL_RGBA8,
- ifRGB10A2 = GL_RGB10_A2,
- ifRGBA12 = GL_RGBA12,
- ifRGBA16 = GL_RGBA16,
-
- ifDepth16 = GL_DEPTH_COMPONENT16,
- ifDepth24 = GL_DEPTH_COMPONENT24,
- ifDepth32 = GL_DEPTH_COMPONENT32
- );
-
- // Pixelmapping
- TglBitmapMapFunc = procedure(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- TglBitmapUnMapFunc = procedure(var aData: PByte; var aBitOffset: Byte; var aPixel: TglBitmapPixelData);
-
- // Base Class
- TglBitmap = class
- protected
- fID: Cardinal;
- fTarget: Cardinal;
- fAnisotropic: Integer;
- fDeleteTextureOnFree: Boolean;
- fFreeDataAfterGenTexture: Boolean;
- fData: PByte;
- fIsResident: Boolean;
- fBorderColor: array[0..3] of Single;
-
- fDimension: TglBitmapPixelPosition;
- fMipMap: TglBitmapMipMap;
- fFormat: TglBitmapFormat;
- fInternalFormat: TglBitmapInternalFormat;
-
- // Mapping
- fPixelSize: Integer;
- fRowSize: Integer;
- fUnmapFunc: TglBitmapUnMapFunc;
- fMapFunc: TglBitmapMapFunc;
-
- // Filtering
- fFilterMin: Cardinal;
- fFilterMag: Cardinal;
-
- // TexturWarp
- fWrapS: Cardinal;
- fWrapT: Cardinal;
- fWrapR: Cardinal;
-
- fGetPixelFunc: TglBitmapGetPixel;
- fSetPixelFunc: TglBitmapSetPixel;
-
- // CustomData
- fFilename: String;
- fCustomName: String;
- fCustomNameW: WideString;
- fCustomData: Pointer;
-
- //Getter
- function GetHeight: Integer; virtual;
- function GetWidth: 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 SetInternalFormat(const aValue: TglBitmapInternalFormat);
-
- //Load
- {$IFDEF GLB_SUPPORT_PNG_READ}
- function LoadPNG(Stream: TStream): Boolean; virtual;
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- function LoadJPEG(Stream: TStream): Boolean; virtual;
- {$ENDIF}
- function LoadDDS(Stream: TStream): Boolean; virtual;
- function LoadTGA(Stream: TStream): Boolean; virtual;
- function LoadBMP(Stream: TStream): Boolean; virtual;
-
- //Save
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- procedure SavePNG(Stream: TStream); virtual;
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- procedure SaveJPEG(Stream: TStream); virtual;
- {$ENDIF}
- procedure SaveDDS(Stream: TStream); virtual;
- procedure SaveTGA(Stream: TStream); virtual;
- procedure SaveBMP(Stream: TStream); virtual;
-
- procedure CreateID;
- procedure SetupParameters(var BuildWithGlu: Boolean);
- procedure SelectFormat(DataFormat: TglBitmapInternalFormat; var glFormat, glInternalFormat, glType: Cardinal; CanConvertImage: Boolean = True);
-
- procedure SetDataPointer(NewData: pByte; Format: TglBitmapInternalFormat; Width: Integer = -1; Height: Integer = -1); virtual;
- procedure GenTexture(TestTextureSize: Boolean = True); virtual; abstract;
-
- function FlipHorz: Boolean; virtual;
- function FlipVert: Boolean; virtual;
-
- property Width: Integer read GetWidth;
- property Height: Integer read GetHeight;
- public
- property ID: Cardinal read fID write SetID;
- property Target: Cardinal read fTarget write SetTarget;
- property Format: TglBitmapFormat read fFormat write SetFormat;
- property InternalFormat: TglBitmapInternalFormat read fInternalFormat write SetInternalFormat;
- 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;
-
- //Loading
- procedure LoadFromFile(const aFileName: String);
- procedure LoadFromStream(const aStream: TStream); virtual;
- procedure LoadFromFunc(const aSize: TglBitmapPixelPosition; const aFunc: TglBitmapFunction;
- const aFormat: TglBitmapFormat; const aInternalFormat: TglBitmapInternalFormat;
- const aArgs: PtrInt = 0);
- {$IFDEF GLB_DELPHI}
- procedure LoadFromResource(Instance: Cardinal; Resource: String; ResType: PChar = nil);
- procedure LoadFromResourceID(Instance: Cardinal; ResourceID: Integer; ResType: PChar);
- {$ENDIF}
-
- procedure SaveToFile(const aFileName: String; const aFileType: TglBitmapFileType);
- procedure SaveToStream(const aStream: TStream; const aFileType: TglBitmapFileType); virtual;
-
- //function AddFunc(const aSource: TglBitmap; const aFunc: TglBitmapFunction; const aCreateTemp: Boolean; Format: TglBitmapInternalFormat; CustomData: Pointer = nil): boolean; overload;
- //function AddFunc(const aFunc: TglBitmapFunction; CreateTemp: Boolean; CustomData: Pointer = nil): boolean; overload;
- (* TODO
- {$IFDEF GLB_SDL}
- function AssignToSurface(out aSurface: PSDL_Surface): Boolean;
- function AssignFromSurface(const aSurface: PSDL_Surface): Boolean;
- function AssignAlphaToSurface(out aSurface: PSDL_Surface): Boolean;
- function AddAlphaFromSurface(const aSurface: PSDL_Surface; const aFunc: TglBitmapFunction = nil;
- const aArgs: PtrInt = 0): Boolean;
- {$ENDIF}
-
- {$IFDEF GLB_DELPHI}
- function AssignToBitmap(const aBitmap: TBitmap): Boolean;
- function AssignFromBitmap(const aBitmap: TBitmap): Boolean;
- function AssignAlphaToBitmap(const aBitmap: TBitmap): Boolean;
- function AddAlphaFromBitmap(const aBitmap: TBitmap; const aFunc: TglBitmapFunction = nil;
- const aArgs: PtrInt = 0): Boolean;
- {$ENDIF}
-
- function AddAlphaFromFunc(const aFunc: TglBitmapFunction; const aArgs: PtrInt = 0): Boolean; virtual;
- function AddAlphaFromFile(const aFileName: String; const aFunc: TglBitmapFunction = nil; const aArgs: PtrInt = 0): Boolean;
- function AddAlphaFromStream(const aStream: TStream; const aFunc: TglBitmapFunction = nil; const aArgs: PtrInt = 0): Boolean;
- function AddAlphaFromGlBitmap(const aBitmap: TglBitmap; const aFunc: TglBitmapFunction = nil; const aArgs: PtrInt = 0): Boolean;
- {$IFDEF GLB_DELPHI}
- function AddAlphaFromResource(const aInstance: Cardinal; const aResource: String; const aResType: PChar = nil;
- const aFunc: TglBitmapFunction = nil; const aArgs: PtrInt = 0): Boolean;
- function AddAlphaFromResourceID(const aInstance: Cardinal; const aResourceID: Integer; const aResType: PChar;
- const aFunc: TglBitmapFunction = nil; const aArgs: PtrInt = 0): Boolean;
- {$ENDIF}
-
- 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;
- function Clone: TglBitmap;
- function ConvertTo(const aFormat: TglBitmapFormat; const aInternalFormat: TglBitmapInternalFormat): Boolean; virtual;
- procedure SetBorderColor(Red, Green, Blue, Alpha: Single);
- procedure Invert(const aUseRGB: Boolean = true; aUseAlpha: Boolean = false);
- procedure FreeData;
-
- procedure FillWithColor(const aRed, aGreen, aBlue: aByte; Alpha: Byte = 255);
- procedure FillWithColorRange(const aRed, aGreen, aBlue: Cardinal; const aAlpha: Cardinal = $FFFFFFFF);
- procedure FillWithColorFloat(const aRed, aGreen, aBlue: Single; const aAlpha : Single = 1);
- *)
- procedure SetFilter(const aMin, aMag: Cardinal);
- procedure SetWrap(
- const S: Cardinal = GL_CLAMP_TO_EDGE;
- const T: Cardinal = GL_CLAMP_TO_EDGE;
- const R: Cardinal = GL_CLAMP_TO_EDGE);
-
- procedure GetPixel(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData); virtual;
- procedure SetPixel(const Pos: TglBitmapPixelPosition; const Pixel: TglBitmapPixelData); virtual;
-
- procedure Unbind(DisableTextureUnit: Boolean = True); virtual;
- procedure Bind(EnableTextureUnit: Boolean = True); virtual;
-
- constructor Create; overload;
- constructor Create(FileName: String); overload;
- constructor Create(Stream: TStream); overload;
- {$IFDEF GLB_DELPHI}
- constructor CreateFromResourceName(Instance: Cardinal; Resource: String; ResType: PChar = nil);
- constructor Create(Instance: Cardinal; Resource: String; ResType: PChar = nil); overload;
- constructor Create(Instance: Cardinal; ResourceID: Integer; ResType: PChar); overload;
- {$ENDIF}
- constructor Create(Size: TglBitmapPixelPosition; Format: TglBitmapInternalFormat); overload;
- constructor Create(Size: TglBitmapPixelPosition; Format: TglBitmapInternalFormat; Func: TglBitmapFunction; CustomData: Pointer = nil); overload;
- end;
-
-
- TglBitmap2D = class(TglBitmap)
- protected
- // Bildeinstellungen
- fLines: array of PByte;
-
- 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);
- function GetScanline(Index: Integer): Pointer;
-
- procedure SetPixel2DUnmap(const Pos: TglBitmapPixelPosition; const 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
- property Width;
- property Height;
- property Scanline[Index: Integer]: Pointer read GetScanline;
-
- procedure AfterConstruction; override;
-
- procedure GrabScreen(const aTop, aLeft, aRight, aBottom: Integer; const aFormat: TglBitmapFormat; const aInternalFormat: TglBitmapInternalFormat);
- procedure GetDataFromTexture;
- procedure ToNormalMap(const aFunc: TglBitmapNormalMapFunc = nm3x3; const aScale: Single = 2; const aUseAlpha: Boolean = False);
- procedure GenTexture(TestTextureSize: Boolean = True); override;
-
- function FlipHorz: Boolean; override;
- function FlipVert: Boolean; override;
- 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;
- *)
-
- procedure glBitmapSetDefaultDeleteTextureOnFree(const aDeleteTextureOnFree: Boolean);
- procedure glBitmapSetDefaultFreeDataAfterGenTexture(const aFreeData: Boolean);
- procedure glBitmapSetDefaultFormat(const aFormat: TglBitmapFormat);
- procedure glBitmapSetDefaultInternalFormat(const aInternalFormat: TglBitmapInternalFormat);
- 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 glBitmapGetDefaultFormat: TglBitmapFormat;
- function glBitmapGetDefaultInternalFormat: TglBitmapInternalFormat;
- procedure glBitmapGetDefaultFilter(var aMin, aMag: Cardinal);
- procedure glBitmapGetDefaultTextureWrap(var S, T, R: Cardinal);
-
- // position / size
- function glBitmapPosition(X: Integer = -1; Y: Integer = -1): TglBitmapPixelPosition;
-
- // Formatfunctions
- function FormatGetSize(Format: TglBitmapInternalFormat): Single;
- function FormatIsCompressed(Format: TglBitmapInternalFormat): boolean;
- function FormatIsUncompressed(Format: TglBitmapInternalFormat): boolean;
- function FormatIsEmpty(Format: TglBitmapInternalFormat): boolean;
- function FormatHasAlpha(Format: TglBitmapInternalFormat): Boolean;
- procedure FormatPreparePixel(var Pixel: TglBitmapPixelData; Format: TglBitmapInternalFormat);
- function FormatGetWithoutAlpha(Format: TglBitmapInternalFormat): TglBitmapInternalFormat;
- function FormatGetWithAlpha(Format: TglBitmapInternalFormat): TglBitmapInternalFormat;
- function FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask: Cardinal; Format: TglBitmapInternalFormat): boolean;
-
-
- (* TODO
- 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{$ENDIF}): Boolean;
- function LoadNormalMap(Size: Integer; var Texture: Cardinal): Boolean;
- *)
-
- var
- glBitmapDefaultDeleteTextureOnFree: Boolean;
- glBitmapDefaultFreeDataAfterGenTextures: Boolean;
- glBitmapDefaultFormat: TglBitmapFormat;
- glBitmapDefaultInternalFormat: TglBitmapInternalFormat;
- glBitmapDefaultFilterMin: Cardinal;
- glBitmapDefaultFilterMag: Cardinal;
- glBitmapDefaultWrapS: Cardinal;
- glBitmapDefaultWrapT: Cardinal;
- glBitmapDefaultWrapR: Cardinal;
-
- {$IFDEF GLB_DELPHI}
- function CreateGrayPalette: HPALETTE;
- {$ENDIF}
-
- implementation
-
- uses
- Math;
-
- (* TODO
- {$IFNDEF GLB_NO_NATIVE_GL}
- procedure ReadOpenGLExtensions;
- var
- {$IFDEF GLB_DELPHI}
- Context: HGLRC;
- {$ENDIF}
- Buffer: AnsiString;
- MajorVersion, MinorVersion: Integer;
-
-
- procedure TrimVersionString(Buffer: AnsiString; var Major, Minor: Integer);
- var
- Separator: Integer;
- begin
- Minor := 0;
- Major := 0;
-
- Separator := Pos(AnsiString('.'), Buffer);
-
- if (Separator > 1) and (Separator < Length(Buffer)) and
- (Buffer[Separator - 1] in ['0'..'9']) and
- (Buffer[Separator + 1] in ['0'..'9']) then begin
-
- Dec(Separator);
- while (Separator > 0) and (Buffer[Separator] in ['0'..'9']) do
- Dec(Separator);
-
- Delete(Buffer, 1, Separator);
- Separator := Pos(AnsiString('.'), Buffer) + 1;
-
- while (Separator <= Length(Buffer)) and (AnsiChar(Buffer[Separator]) in ['0'..'9']) do
- Inc(Separator);
-
- Delete(Buffer, Separator, 255);
- Separator := Pos(AnsiString('.'), Buffer);
-
- Major := StrToInt(Copy(String(Buffer), 1, Separator - 1));
- Minor := StrToInt(Copy(String(Buffer), Separator + 1, 1));
- end;
- end;
-
-
- function CheckExtension(const Extension: AnsiString): Boolean;
- var
- ExtPos: Integer;
- begin
- ExtPos := Pos(Extension, Buffer);
- Result := ExtPos > 0;
-
- if Result then
- Result := ((ExtPos + Length(Extension) - 1) = Length(Buffer)) or not (Buffer[ExtPos + Length(Extension)] in ['_', 'A'..'Z', 'a'..'z']);
- end;
-
-
- function glLoad (aFunc: pAnsiChar): pointer;
- begin
- {$IFDEF LINUX}
- Result := glXGetProcAddress(aFunc);
- {$else}
- Result := wglGetProcAddress(aFunc);
- {$ENDIF}
- end;
-
-
- begin
- {$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 >= 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;
- end;
-
- 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_cube_map := CheckExtension('GL_ARB_texture_cube_map');
- GL_ARB_texture_compression := CheckExtension('GL_ARB_texture_compression');
- 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_bgra := CheckExtension('GL_EXT_bgra');
- GL_EXT_texture_edge_clamp := CheckExtension('GL_EXT_texture_edge_clamp');
- GL_EXT_texture_cube_map := CheckExtension('GL_EXT_texture_cube_map');
- GL_EXT_texture_compression_s3tc := CheckExtension('GL_EXT_texture_compression_s3tc');
- 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');
-
- // Funtions
- if GL_VERSION_1_3 then begin
- // Loading Core
- glCompressedTexImage1D := glLoad('glCompressedTexImage1D');
- glCompressedTexImage2D := glLoad('glCompressedTexImage2D');
- glGetCompressedTexImage := glLoad('glGetCompressedTexImage');
- end else
-
- begin
- // Try loading Extension
- glCompressedTexImage1D := glLoad('glCompressedTexImage1DARB');
- glCompressedTexImage2D := glLoad('glCompressedTexImage2DARB');
- glGetCompressedTexImage := glLoad('glGetCompressedTexImageARB');
- end;
- {$IFDEF GLB_DELPHI}
- end;
- {$ENDIF}
- end;
- {$ENDIF}
- *)
-
- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- 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;
-
-
- const
- LUMINANCE_WEIGHT_R = 0.30;
- LUMINANCE_WEIGHT_G = 0.59;
- LUMINANCE_WEIGHT_B = 0.11;
- UNSUPPORTED_INTERNAL_FORMAT = 'the given format isn''t supported by this function.';
-
- {$REGION PixelDescription}
- const
- //ifAlpha4////////////////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_ALPHA4: TglBitmapPixelDesc = (
- RedRange: $00000000; RedShift: 0;
- GreenRange: $00000000; GreenShift: 0;
- BlueRange: $00000000; BlueShift: 0;
- AlphaRange: $0000000F; AlphaShift: 0);
-
- //ifAlpha8
- PIXEL_DESC_ALPHA8: TglBitmapPixelDesc = (
- RedRange: $00000000; RedShift: 0;
- GreenRange: $00000000; GreenShift: 0;
- BlueRange: $00000000; BlueShift: 0;
- AlphaRange: $000000FF; AlphaShift: 0);
-
- //ifAlpha12
- PIXEL_DESC_ALPHA12: TglBitmapPixelDesc = (
- RedRange: $00000000; RedShift: 0;
- GreenRange: $00000000; GreenShift: 0;
- BlueRange: $00000000; BlueShift: 0;
- AlphaRange: $00000FFF; AlphaShift: 0);
-
- //ifAlpha16
- PIXEL_DESC_ALPHA16: TglBitmapPixelDesc = (
- RedRange: $00000000; RedShift: 0;
- GreenRange: $00000000; GreenShift: 0;
- BlueRange: $00000000; BlueShift: 0;
- AlphaRange: $0000FFFF; AlphaShift: 0);
-
- //ifLuminance4////////////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_LUMINANCE4: TglBitmapPixelDesc = (
- RedRange: $0000000F; RedShift: 0;
- GreenRange: $0000000F; GreenShift: 0;
- BlueRange: $0000000F; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifLuminance8
- PIXEL_DESC_LUMINANCE8: TglBitmapPixelDesc = (
- RedRange: $000000FF; RedShift: 0;
- GreenRange: $000000FF; GreenShift: 0;
- BlueRange: $000000FF; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifLuminance12
- PIXEL_DESC_LUMINANCE12: TglBitmapPixelDesc = (
- RedRange: $00000FFF; RedShift: 0;
- GreenRange: $00000FFF; GreenShift: 0;
- BlueRange: $00000FFF; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifLuminance16
- PIXEL_DESC_LUMINANCE16: TglBitmapPixelDesc = (
- RedRange: $0000FFFF; RedShift: 0;
- GreenRange: $0000FFFF; GreenShift: 0;
- BlueRange: $0000FFFF; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifLuminance4Alpha4//////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_LUMINANCE4_ALPHA4: TglBitmapPixelDesc = (
- RedRange: $0000000F; RedShift: 0;
- GreenRange: $0000000F; GreenShift: 0;
- BlueRange: $0000000F; BlueShift: 0;
- AlphaRange: $0000000F; AlphaShift: 4);
- //ifLuminance6Alpha2
- PIXEL_DESC_LUMINANCE6_ALPHA2: TglBitmapPixelDesc = (
- RedRange: $0000003F; RedShift: 0;
- GreenRange: $0000003F; GreenShift: 0;
- BlueRange: $0000003F; BlueShift: 0;
- AlphaRange: $00000003; AlphaShift: 6);
-
- //ifLuminance8Alpha8
- PIXEL_DESC_LUMINANCE8_ALPHA8: TglBitmapPixelDesc = (
- RedRange: $000000FF; RedShift: 0;
- GreenRange: $000000FF; GreenShift: 0;
- BlueRange: $000000FF; BlueShift: 0;
- AlphaRange: $000000FF; AlphaShift: 8);
-
- //ifLuminance12Alpha4
- PIXEL_DESC_LUMINANCE12_ALPHA4: TglBitmapPixelDesc = (
- RedRange: $00000FFF; RedShift: 0;
- GreenRange: $00000FFF; GreenShift: 0;
- BlueRange: $00000FFF; BlueShift: 0;
- AlphaRange: $0000000F; AlphaShift: 12);
-
- //ifLuminance12Alpha12
- PIXEL_DESC_LUMINANCE12_ALPHA12: TglBitmapPixelDesc = (
- RedRange: $00000FFF; RedShift: 0;
- GreenRange: $00000FFF; GreenShift: 0;
- BlueRange: $00000FFF; BlueShift: 0;
- AlphaRange: $00000FFF; AlphaShift: 12);
-
- //ifLuminance16Alpha16
- PIXEL_DESC_LUMINANCE16_ALPHA16: TglBitmapPixelDesc = (
- RedRange: $0000FFFF; RedShift: 0;
- GreenRange: $0000FFFF; GreenShift: 0;
- BlueRange: $0000FFFF; BlueShift: 0;
- AlphaRange: $0000FFFF; AlphaShift: 16);
-
- //ifR3G3B2////////////////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_R3_G3_B2: TglBitmapPixelDesc = (
- RedRange: $00000007; RedShift: 0;
- GreenRange: $00000007; GreenShift: 3;
- BlueRange: $00000003; BlueShift: 6;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifRGB4
- PIXEL_DESC_RGB4: TglBitmapPixelDesc = (
- RedRange: $0000000F; RedShift: 0;
- GreenRange: $0000000F; GreenShift: 4;
- BlueRange: $0000000F; BlueShift: 8;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifRGB5
- PIXEL_DESC_RGB5: TglBitmapPixelDesc = (
- RedRange: $0000001F; RedShift: 0;
- GreenRange: $0000001F; GreenShift: 5;
- BlueRange: $0000001F; BlueShift: 10;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifRGB8
- PIXEL_DESC_RGB8: TglBitmapPixelDesc = (
- RedRange: $000000FF; RedShift: 0;
- GreenRange: $000000FF; GreenShift: 8;
- BlueRange: $000000FF; BlueShift: 16;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifRGB10
- PIXEL_DESC_RGB10: TglBitmapPixelDesc = (
- RedRange: $000003FF; RedShift: 0;
- GreenRange: $000003FF; GreenShift: 10;
- BlueRange: $000003FF; BlueShift: 20;
- AlphaRange: $000003FF; AlphaShift: 0);
-
- //ifRGB12
- PIXEL_DESC_RGB12: TglBitmapPixelDesc = (
- RedRange: $00000000; RedShift: 0;
- GreenRange: $00000000; GreenShift: 0;
- BlueRange: $00000000; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
-
- //ifRGB16
- PIXEL_DESC_RGB16: TglBitmapPixelDesc = (
- RedRange: $0000FFFF; RedShift: 0;
- GreenRange: $0000FFFF; GreenShift: 16;
- BlueRange: $0000FFFF; BlueShift: 32;
- AlphaRange: $0000FFFF; AlphaShift: 0);
-
- //ifRGBA2/////////////////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_RGBA2: TglBitmapPixelDesc = (
- RedRange: $00000003; RedShift: 0;
- GreenRange: $00000003; GreenShift: 2;
- BlueRange: $00000003; BlueShift: 4;
- AlphaRange: $00000003; AlphaShift: 6);
-
- //ifRGBA4
- PIXEL_DESC_RGBA4: TglBitmapPixelDesc = (
- RedRange: $0000000F; RedShift: 0;
- GreenRange: $0000000F; GreenShift: 4;
- BlueRange: $0000000F; BlueShift: 8;
- AlphaRange: $0000000F; AlphaShift: 12);
-
- //ifRGB5A1
- PIXEL_DESC_RGB5_A1: TglBitmapPixelDesc = (
- RedRange: $0000001F; RedShift: 0;
- GreenRange: $0000001F; GreenShift: 5;
- BlueRange: $0000001F; BlueShift: 10;
- AlphaRange: $00000001; AlphaShift: 11);
-
- //ifRGBA8
- PIXEL_DESC_RGBA8: TglBitmapPixelDesc = (
- RedRange: $000000FF; RedShift: 0;
- GreenRange: $000000FF; GreenShift: 8;
- BlueRange: $000000FF; BlueShift: 16;
- AlphaRange: $000000FF; AlphaShift: 24);
-
- //ifRGB10A2
- PIXEL_DESC_RGB10_A2: TglBitmapPixelDesc = (
- RedRange: $000003FF; RedShift: 0;
- GreenRange: $000003FF; GreenShift: 10;
- BlueRange: $000003FF; BlueShift: 20;
- AlphaRange: $00000003; AlphaShift: 22);
-
- //ifRGBA12
- PIXEL_DESC_RGBA12: TglBitmapPixelDesc = (
- RedRange: $00000FFF; RedShift: 0;
- GreenRange: $00000FFF; GreenShift: 12;
- BlueRange: $00000FFF; BlueShift: 24;
- AlphaRange: $00000FFF; AlphaShift: 36);
-
- //ifRGBA16
- PIXEL_DESC_RGBA16: TglBitmapPixelDesc = (
- RedRange: $0000FFFF; RedShift: 0;
- GreenRange: $0000FFFF; GreenShift: 16;
- BlueRange: $0000FFFF; BlueShift: 32;
- AlphaRange: $0000FFFF; AlphaShift: 48);
-
- //ifDepthComponent16//////////////////////////////////////////////////////////////////////////////
- PIXEL_DESC_DEPTH16: TglBitmapPixelDesc = (
- RedRange: $0000FFFF; RedShift: 0;
- GreenRange: $0000FFFF; GreenShift: 0;
- BlueRange: $0000FFFF; BlueShift: 0;
- AlphaRange: $0000FFFF; AlphaShift: 0);
-
- //ifDepthComponent24
- PIXEL_DESC_DEPTH24: TglBitmapPixelDesc = (
- RedRange: $00FFFFFF; RedShift: 0;
- GreenRange: $00FFFFFF; GreenShift: 0;
- BlueRange: $00FFFFFF; BlueShift: 0;
- AlphaRange: $00FFFFFF; AlphaShift: 0);
-
- //ifDepthComponent32
- PIXEL_DESC_DEPTH32: TglBitmapPixelDesc = (
- RedRange: $FFFFFFFF; RedShift: 0;
- GreenRange: $FFFFFFFF; GreenShift: 0;
- BlueRange: $FFFFFFFF; BlueShift: 0;
- AlphaRange: $00000000; AlphaShift: 0);
- {$ENDREGION}
-
- {$REGION MapFunctions}
- //ALPHA/////////////////////////////////////////////////////////////////////////////////////////////
- procedure MapAlpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapAlpha8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- aData^ := aPixel.Alpha;
- inc(aData);
- end;
-
- procedure MapAlpha12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapAlpha16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ := aPixel.Alpha;
- inc(aData, 2);
- end;
-
- //LUMINANCE/////////////////////////////////////////////////////////////////////////////////////////
- procedure MapLuminance4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapLuminance8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- aData^ := Trunc(
- aPixel.Red * LUMINANCE_WEIGHT_R +
- aPixel.Green * LUMINANCE_WEIGHT_G +
- aPixel.Blue * LUMINANCE_WEIGHT_B);
- inc(aData);
- end;
-
- procedure MapLuminance12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapLuminance16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ := Trunc(
- aPixel.Red * LUMINANCE_WEIGHT_R +
- aPixel.Green * LUMINANCE_WEIGHT_G +
- aPixel.Blue * LUMINANCE_WEIGHT_B);
- inc(aData, 2);
- end;
-
- //LUMINANCE_ALPHA///////////////////////////////////////////////////////////////////////////////////
- procedure MapLuminance4Alpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- aData^ :=
- ((Trunc(aPixel.Red * LUMINANCE_WEIGHT_R +
- aPixel.Green * LUMINANCE_WEIGHT_G +
- aPixel.Blue * LUMINANCE_WEIGHT_B) and
- aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift;
- inc(aData);
- end;
-
- procedure MapLuminance6Alpha2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- MapLuminance4Alpha4(aPixel, aData, aBitOffset);
- end;
-
- procedure MapLuminance8Alpha8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ :=
- ((Trunc(aPixel.Red * LUMINANCE_WEIGHT_R +
- aPixel.Green * LUMINANCE_WEIGHT_G +
- aPixel.Blue * LUMINANCE_WEIGHT_B) and
- aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift;
- inc(aData, 2);
- end;
-
- procedure MapLuminance12Alpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- MapLuminance8Alpha8(aPixel, aData, aBitOffset);
- end;
-
- procedure MapLuminance12Alpha12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapLuminance16Alpha16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PCardinal(aData)^ :=
- ((Trunc(aPixel.Red * LUMINANCE_WEIGHT_R +
- aPixel.Green * LUMINANCE_WEIGHT_G +
- aPixel.Blue * LUMINANCE_WEIGHT_B) and
- aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift;
- inc(aData, 4);
- end;
-
- //RGB///////////////////////////////////////////////////////////////////////////////////////////////
- procedure MapR3G3B2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- aData^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift);
- inc(aData);
- end;
-
- procedure MapRGB4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapRGB5(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapRGB8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PCardinal(aData)^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift);
- inc(aData, 3);
- end;
-
- procedure MapRGB10(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapRGB12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapRGB16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ := aPixel.Red;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Green;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Blue;
- inc(aData, 2);
- end;
-
- //RGBA//////////////////////////////////////////////////////////////////////////////////////////////
- procedure MapRGBA2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- aData^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift);
- inc(aData);
- end;
-
- procedure MapRGBA4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift);
- inc(aData, 2);
- end;
-
- procedure MapRGB5A1(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift);
- inc(aData, 2);
- end;
-
- procedure MapRGBA8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PCardinal(aData)^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift);
- inc(aData, 4);
- end;
-
- procedure MapRGB10A2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PCardinal(aData)^ :=
- ((aPixel.Red and aPixel.PixelDesc.RedRange) shl aPixel.PixelDesc.RedShift) or
- ((aPixel.Green and aPixel.PixelDesc.GreenRange) shl aPixel.PixelDesc.GreenShift) or
- ((aPixel.Blue and aPixel.PixelDesc.BlueRange) shl aPixel.PixelDesc.BlueShift) or
- ((aPixel.Alpha and aPixel.PixelDesc.AlphaRange) shl aPixel.PixelDesc.AlphaShift);
- inc(aData, 4);
- end;
-
- procedure MapRGBA12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapRGBA16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ := aPixel.Red;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Green;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Blue;
- inc(aData, 2);
- PWord(aData)^ := aPixel.Alpha;
- inc(aData, 2);
- end;
-
- //DEPTH/////////////////////////////////////////////////////////////////////////////////////////////
- procedure MapDepth16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PWord(aData)^ := (aPixel.Red + aPixel.Green + aPixel.Blue) div 3;
- inc(aData, 2);
- end;
-
- procedure MapDepth24(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure MapDepth32(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- PCardinal(aData)^ := (aPixel.Red + aPixel.Green + aPixel.Blue) div 3;
- inc(aData, 4);
- end;
-
- function FormatGetMapFunc(const aInternalFormat: TglBitmapInternalFormat): TglBitmapMapFunc;
- begin
- case aInternalFormat of
- ifAlpha4: result := MapAlpha4;
- ifAlpha8: result := MapAlpha8;
- ifAlpha12: result := MapAlpha12;
- ifAlpha16: result := MapAlpha16;
-
- ifLuminance4: result := MapLuminance4;
- ifLuminance8: result := MapLuminance8;
- ifLuminance12: result := MapLuminance8;
- ifLuminance16: result := MapLuminance8;
-
- ifLuminance4Alpha4: result := MapLuminance4Alpha4;
- ifLuminance6Alpha2: result := MapLuminance6Alpha2;
- ifLuminance8Alpha8: result := MapLuminance8Alpha8;
- ifLuminance12Alpha4: result := MapLuminance12Alpha4;
- ifLuminance12Alpha12: result := MapLuminance12Alpha12;
- ifLuminance16Alpha16: result := MapLuminance16Alpha16;
-
- ifR3G3B2: result := MapR3G3B2;
- ifRGB4: result := MapRGB4;
- ifRGB5: result := MapRGB5;
- ifRGB8: result := MapRGB8;
- ifRGB10: result := MapRGB10;
- ifRGB12: result := MapRGB12;
- ifRGB16: result := MapRGB16;
-
- ifRGBA2: result := MapRGBA2;
- ifRGBA4: result := MapRGBA4;
- ifRGB5A1: result := MapRGB5A1;
- ifRGBA8: result := MapRGBA8;
- ifRGB10A2: result := MapRGB10A2;
- ifRGBA12: result := MapRGBA12;
- ifRGBA16: result := MapRGBA16;
-
- ifDepth16: result := MapDepth16;
- ifDepth24: result := MapDepth24;
- ifDepth32: result := MapDepth32;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('FormatGetMapFunc - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
- end;
- {$ENDREGION}
-
- {$REGION UnmapFunctions}
- //ALPHA/////////////////////////////////////////////////////////////////////////////////////////////
- procedure UnmapAlpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapAlpha8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapAlpha12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapAlpha16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- //LUMINANCE/////////////////////////////////////////////////////////////////////////////////////////
- procedure UnmapLuminance4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapLuminance8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapLuminance12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapLuminance16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- //LUMINANCE_ALPHA///////////////////////////////////////////////////////////////////////////////////
- procedure UnmapLuminance4Alpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapLuminance6Alpha2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapLuminance8Alpha8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapLuminance12Alpha4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapLuminance12Alpha12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapLuminance16Alpha16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- //RGB///////////////////////////////////////////////////////////////////////////////////////////////
- procedure UnmapR3G3B2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGB4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapRGB5(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapRGB8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGB10(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapRGB12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapRGB16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- //RGBA//////////////////////////////////////////////////////////////////////////////////////////////
- procedure UnmapRGBA2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGBA4(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGB5A1(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGBA8(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGB10A2(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapRGBA12(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapRGBA16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- //DEPTH/////////////////////////////////////////////////////////////////////////////////////////////
- procedure UnmapDepth16(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
- procedure UnmapDepth24(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
- //TODO
- end;
-
- procedure UnmapDepth32(const aPixel: TglBitmapPixelData; var aData: PByte; var aBitOffset: Byte);
- begin
-
- end;
-
-
-
-
- procedure UnMapAlpha(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Alpha := pData^;
- Pixel.Red := Pixel.PixelDesc.RedRange;
- Pixel.Green := Pixel.PixelDesc.GreenRange;
- Pixel.Blue := Pixel.PixelDesc.BlueRange;
-
- Inc(pData);
- end;
-
-
- procedure UnMapLuminance(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Alpha := 255;
- Pixel.Red := pData^;
- Pixel.Green := pData^;
- Pixel.Blue := pData^;
-
- Inc(pData);
- end;
-
-
- procedure UnMapDepth8(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Alpha := 255;
- Pixel.Red := pData^;
- Pixel.Green := pData^;
- Pixel.Blue := pData^;
-
- Inc(pData);
- end;
-
-
- procedure UnMapLuminanceAlpha(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Red := pData^;
- Pixel.Green := pData^;
- Pixel.Blue := pData^;
- Inc(pData);
-
- Pixel.Alpha := pData^;
- Inc(pData);
- end;
-
-
- procedure UnMapRGBA4(var pData: pByte; var Pixel: TglBitmapPixelData);
- var
- Temp: Word;
- begin
- Temp := pWord(pData)^;
-
- Pixel.Alpha := Temp shr PIXEL_DESC_RGBA4.AlphaShift and PIXEL_DESC_RGBA4.AlphaRange;
- Pixel.Red := Temp shr PIXEL_DESC_RGBA4.RedShift and PIXEL_DESC_RGBA4.RedRange;
- Pixel.Green := Temp shr PIXEL_DESC_RGBA4.GreenShift and PIXEL_DESC_RGBA4.GreenRange;
- Pixel.Blue := Temp and PIXEL_DESC_RGBA4.BlueRange;
-
- Inc(pData, 2);
- end;
-
-
- procedure UnMapR5G6B5(var pData: pByte; var Pixel: TglBitmapPixelData);
- var
- Temp: Word;
- begin
- Temp := pWord(pData)^;
-
- Pixel.Alpha := Pixel.PixelDesc.AlphaRange;
- Pixel.Red := Temp shr PIXEL_DESC_R5G6B5.RedShift and PIXEL_DESC_R5G6B5.RedRange;
- Pixel.Green := Temp shr PIXEL_DESC_R5G6B5.GreenShift and PIXEL_DESC_R5G6B5.GreenRange;
- Pixel.Blue := Temp and PIXEL_DESC_R5G6B5.BlueRange;
-
- Inc(pData, 2);
- end;
-
-
- procedure UnMapRGB5A1(var pData: pByte; var Pixel: TglBitmapPixelData);
- var
- Temp: Word;
- begin
- Temp := pWord(pData)^;
-
- Pixel.Alpha := Temp shr PIXEL_DESC_RGB5A1.AlphaShift and PIXEL_DESC_RGB5A1.AlphaRange;
- Pixel.Red := Temp shr PIXEL_DESC_RGB5A1.RedShift and PIXEL_DESC_RGB5A1.RedRange;
- Pixel.Green := Temp shr PIXEL_DESC_RGB5A1.GreenShift and PIXEL_DESC_RGB5A1.GreenRange;
- Pixel.Blue := Temp and PIXEL_DESC_RGB5A1.BlueRange;
-
- Inc(pData, 2);
- end;
-
-
- procedure UnMapRGB8(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Alpha := Pixel.PixelDesc.AlphaRange;
-
- Pixel.Red := pData^;
- Inc(pData);
-
- Pixel.Green := pData^;
- Inc(pData);
-
- Pixel.Blue := pData^;
- Inc(pData);
- end;
-
-
- procedure UnMapBGR8(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Alpha := Pixel.PixelDesc.AlphaRange;
-
- Pixel.Blue := pData^;
- Inc(pData);
-
- Pixel.Green := pData^;
- Inc(pData);
-
- Pixel.Red := pData^;
- Inc(pData);
- end;
-
-
- procedure UnMapRGBA8(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Red := pData^;
- Inc(pData);
-
- Pixel.Green := pData^;
- Inc(pData);
-
- Pixel.Blue := pData^;
- Inc(pData);
-
- Pixel.Alpha := pData^;
- Inc(pData);
- end;
-
-
- procedure UnMapBGRA8(var pData: pByte; var Pixel: TglBitmapPixelData);
- begin
- Pixel.Blue := pData^;
- Inc(pData);
-
- Pixel.Green := pData^;
- Inc(pData);
-
- Pixel.Red := pData^;
- Inc(pData);
-
- Pixel.Alpha := pData^;
- Inc(pData);
- end;
-
-
- procedure UnMapRGB10A2(var pData: pByte; var Pixel: TglBitmapPixelData);
- var
- Temp: DWord;
- begin
- Temp := pDWord(pData)^;
-
- Pixel.Alpha := Temp shr PIXEL_DESC_RGB10A2.AlphaShift and PIXEL_DESC_RGB10A2.AlphaRange;
- Pixel.Red := Temp shr PIXEL_DESC_RGB10A2.RedShift and PIXEL_DESC_RGB10A2.RedRange;
- Pixel.Green := Temp shr PIXEL_DESC_RGB10A2.GreenShift and PIXEL_DESC_RGB10A2.GreenRange;
- Pixel.Blue := Temp and PIXEL_DESC_RGB10A2.BlueRange;
-
- Inc(pData, 4);
- end;
-
-
- function FormatGetUnMapFunc(const aInternalFormat: TglBitmapInternalFormat): TglBitmapUnMapFunc;
- begin
- case aInternalFormat of
- ifAlpha4: result := UnmapAlpha4;
- ifAlpha8: result := UnmapAlpha8;
- ifAlpha12: result := UnmapAlpha12;
- ifAlpha16: result := UnmapAlpha16;
-
- ifLuminance4: result := UnmapLuminance4;
- ifLuminance8: result := UnmapLuminance8;
- ifLuminance12: result := UnmapLuminance8;
- ifLuminance16: result := UnmapLuminance8;
-
- ifLuminance4Alpha4: result := UnmapLuminance4Alpha4;
- ifLuminance6Alpha2: result := UnmapLuminance6Alpha2;
- ifLuminance8Alpha8: result := UnmapLuminance8Alpha8;
- ifLuminance12Alpha4: result := UnmapLuminance12Alpha4;
- ifLuminance12Alpha12: result := UnmapLuminance12Alpha12;
- ifLuminance16Alpha16: result := UnmapLuminance16Alpha16;
-
- ifR3G3B2: result := UnmapR3G3B2;
- ifRGB4: result := UnmapRGB4;
- ifRGB5: result := UnmapRGB5;
- ifRGB8: result := UnmapRGB8;
- ifRGB10: result := UnmapRGB10;
- ifRGB12: result := UnmapRGB12;
- ifRGB16: result := UnmapRGB16;
-
- ifRGBA2: result := UnmapRGBA2;
- ifRGBA4: result := UnmapRGBA4;
- ifRGB5A1: result := UnmapRGB5A1;
- ifRGBA8: result := UnmapRGBA8;
- ifRGB10A2: result := UnmapRGB10A2;
- ifRGBA12: result := UnmapRGBA12;
- ifRGBA16: result := UnmapRGBA16;
-
- ifDepth16: result := UnmapDepth16;
- ifDepth24: result := UnmapDepth24;
- ifDepth32: result := UnmapDepth32;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('FormatGetMapFunc - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
- end;
- {$ENDREGION}
-
- {*
- ** Tools
- *}
- function FormatGetSize (Format: TglBitmapInternalFormat): Single;
- begin
- case Format of
- ifEmpty:
- Result := 0;
- ifDXT1:
- Result := 0.5;
- ifAlpha, ifLuminance, ifDepth8, ifDXT3, ifDXT5:
- Result := 1;
- ifLuminanceAlpha, ifRGBA4, ifRGB5A1, ifR5G6B5:
- Result := 2;
- ifBGR8, ifRGB8:
- Result := 3;
- ifBGRA8, ifRGBA8, ifRGB10A2:
- Result := 4;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('FormatGetSize - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
- end;
-
-
- function FormatIsCompressed(Format: TglBitmapInternalFormat): boolean;
- begin
- Result := Format in [ifDXT1, ifDXT3, ifDXT5];
- end;
-
-
- function FormatIsUncompressed(Format: TglBitmapInternalFormat): boolean;
- begin
- Result := Format in [ifAlpha, ifLuminance, ifDepth8, ifLuminanceAlpha, ifRGBA4, ifRGB5A1, ifR5G6B5, ifBGR8, ifRGB8, ifBGRA8, ifRGBA8, ifRGB10A2];
- end;
-
-
- function FormatIsEmpty(Format: TglBitmapInternalFormat): boolean;
- begin
- Result := Format = ifEmpty;
- end;
-
-
- function FormatHasAlpha(Format: TglBitmapInternalFormat): Boolean;
- begin
- Result := Format in [ifDXT1, ifDXT3, ifDXT5 ,ifAlpha, ifLuminanceAlpha, ifRGBA4, ifRGB5A1, ifBGRA8, ifRGBA8, ifRGB10A2];
- end;
-
-
- procedure FormatPreparePixel(var Pixel: TglBitmapPixelData; Format: TglBitmapInternalFormat);
- begin
- FillChar(Pixel, SizeOf(Pixel), #0);
-
- case Format of
- ifAlpha:
- Pixel.PixelDesc := PIXEL_DESC_ALPHA;
- ifLuminance:
- Pixel.PixelDesc := PIXEL_DESC_LUMINANCE;
- ifDepth8:
- Pixel.PixelDesc := PIXEL_DESC_DEPTH8;
- ifLuminanceAlpha:
- Pixel.PixelDesc := PIXEL_DESC_LUMINANCEALPHA;
- ifRGBA4:
- Pixel.PixelDesc := PIXEL_DESC_RGBA4;
- ifR5G6B5:
- Pixel.PixelDesc := PIXEL_DESC_R5G6B5;
- ifRGB5A1:
- Pixel.PixelDesc := PIXEL_DESC_RGB5A1;
- ifDXT1, ifDXT3, ifDXT5, ifBGRA8:
- Pixel.PixelDesc := PIXEL_DESC_BGRA8;
- ifBGR8:
- Pixel.PixelDesc := PIXEL_DESC_BGR8;
- ifRGB8:
- Pixel.PixelDesc := PIXEL_DESC_RGB8;
- ifRGBA8:
- Pixel.PixelDesc := PIXEL_DESC_RGBA8;
- ifRGB10A2:
- Pixel.PixelDesc := PIXEL_DESC_RGB10A2;
- end;
-
- Pixel.Red := Pixel.PixelDesc.RedRange;
- Pixel.Green := Pixel.PixelDesc.GreenRange;
- Pixel.Blue := Pixel.PixelDesc.BlueRange;
- Pixel.Alpha := Pixel.PixelDesc.AlphaRange;
- end;
-
-
- function FormatGetWithoutAlpha(Format: TglBitmapInternalFormat): TglBitmapInternalFormat;
- begin
- case Format of
- ifAlpha:
- Result := ifLuminance;
- ifLuminanceAlpha:
- Result := ifLuminance;
- ifRGBA4:
- Result := ifR5G6B5;
- ifRGB5A1:
- Result := ifR5G6B5;
- ifBGRA8:
- Result := ifBGR8;
- ifRGBA8:
- Result := ifRGB8;
- ifRGB10A2:
- Result := ifRGB8;
- else
- Result := Format;
- end;
- end;
-
-
- function FormatGetWithAlpha(Format: TglBitmapInternalFormat): TglBitmapInternalFormat;
- begin
- case Format of
- ifLuminance:
- Result := ifLuminanceAlpha;
- ifR5G6B5:
- Result := ifRGB5A1;
- ifBGR8:
- Result := ifBGRA8;
- ifRGB8:
- Result := ifRGBA8;
- else
- Result := Format;
- end;
- end;
-
-
- function FormatGetUncompressed(Format: TglBitmapInternalFormat): TglBitmapInternalFormat;
- begin
- case Format of
- ifDXT1:
- Result := ifRGB5A1;
- ifDXT3:
- Result := ifRGBA8;
- ifDXT5:
- Result := ifRGBA8;
- else
- Result := Format;
- end;
- end;
-
-
- function FormatGetImageSize(Size: TglBitmapPixelPosition; Format: TglBitmapInternalFormat): Integer;
- begin
- if (Size.X = 0) and (Size.Y = 0) then
- Result := 0
- else
- Result := Trunc(Max(Size.Y, 1) * Max(Size.X, 1) * FormatGetSize(Format));
- end;
-
-
- function FormatGetSupportedFiles(Format: TglBitmapInternalFormat): TglBitmapFileTypes;
- begin
- Result := [];
-
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- if Format in [ifLuminance, ifAlpha, ifDepth8, ifLuminanceAlpha, ifBGR8, ifBGRA8, ifRGB8, ifRGBA8] then
- Result := Result + [ftPNG];
- {$ENDIF}
-
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- if Format in [ifLuminance, ifAlpha, ifDepth8, ifRGB8, ifBGR8] then
- Result := Result + [ftJPEG];
- {$ENDIF}
-
- Result := Result + [ftDDS];
-
- if Format in [ifLuminance, ifAlpha, ifDepth8, ifLuminanceAlpha, ifBGR8, ifRGB8, ifBGRA8, ifRGBA8] then
- Result := Result + [ftTGA];
-
- if Format in [ifLuminance, ifAlpha, ifDepth8, ifLuminanceAlpha, ifRGBA4, ifRGB5A1, ifR5G6B5, ifRGB8, ifBGR8, ifRGBA8, ifBGRA8, ifRGB10A2] then
- Result := Result + [ftBMP];
- end;
-
-
- function FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask: Cardinal; Format: TglBitmapInternalFormat): boolean;
- var
- Pix: TglBitmapPixelData;
- begin
- Result := False;
-
- if (RedMask = 0) and (GreenMask = 0) and (BlueMask = 0) and (AlphaMask = 0) then
- raise EglBitmapException.Create('FormatCheckFormat - All Masks are 0');
-
- FormatPreparePixel(Pix, Format);
-
- with Pix.PixelDesc do begin
- if RedMask <> 0 then
- if (RedMask <> (RedRange shl RedShift)) then
- Exit;
-
- if GreenMask <> 0 then
- if (GreenMask <> (GreenRange shl GreenShift)) then
- Exit;
-
- if BlueMask <> 0 then
- if (BlueMask <> (BlueRange shl BlueShift)) then
- Exit;
-
- if AlphaMask <> 0 then
- if (AlphaMask <> (AlphaRange shl AlphaShift)) then
- Exit;
-
- Result := True;
- end;
- end;
-
-
- function IsPowerOfTwo(Number: Integer): Boolean;
- begin
- while Number and 1 = 0 do
- Number := Number shr 1;
-
- Result := Number = 1;
- end;
-
-
- function GetBitSize(BitSet: Cardinal): Integer;
- begin
- Result := 0;
-
- while BitSet > 0 do begin
- if (BitSet and $1) = 1 then
- Inc(Result);
-
- BitSet := BitSet shr 1;
- end;
- end;
-
-
- procedure SwapRGB(pData: pByte; Width: Integer; HasAlpha: Boolean);
- type
- PRGBPix = ^TRGBPix;
- TRGBPix = array [0..2] of byte;
- var
- Temp: Byte;
- begin
- while Width > 0 do begin
- Temp := pRGBPIX(pData)^[0];
- pRGBPIX(pData)^[0] := pRGBPIX(pData)^[2];
- pRGBPIX(pData)^[2] := Temp;
-
- if HasAlpha then
- Inc(pData, 4)
- else
- Inc(pData, 3);
-
- Dec(Width);
- end;
- end;
-
-
- {$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}
-
-
- {$IFDEF GLB_SDL_IMAGE}
- function glBitmapRWseek(context: PSDL_RWops; offset: Integer; whence: Integer): Integer; cdecl;
- begin
- Result := TStream(context^.unknown.data1).Seek(offset, whence);
- end;
-
-
- function glBitmapRWread(context: PSDL_RWops; Ptr: Pointer; size: Integer; maxnum : Integer): Integer; cdecl;
- begin
- Result := TStream(context^.unknown.data1).Read(Ptr^, size * maxnum);
- end;
-
-
- function glBitmapRWwrite(context: PSDL_RWops; Ptr: Pointer; size: Integer; num: Integer): Integer; cdecl;
- begin
- Result := TStream(context^.unknown.data1).Write(Ptr^, size * num);
- end;
-
-
- function glBitmapRWclose(context: PSDL_RWops): Integer; cdecl;
- begin
- Result := 0;
- end;
-
-
- function glBitmapCreateRWops(Stream: TStream): PSDL_RWops;
- begin
- Result := SDL_AllocRW;
-
- if Result = nil then
- raise EglBitmapException.Create('glBitmapCreateRWops - SDL_AllocRW failed.');
-
- Result^.seek := glBitmapRWseek;
- Result^.read := glBitmapRWread;
- Result^.write := glBitmapRWwrite;
- Result^.close := glBitmapRWclose;
- Result^.unknown.data1 := Stream;
- end;
- {$ENDIF}
-
-
- {*
- ** Helper functions
- *}
- 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 glBitmapSetDefaultFormat(Format: TglBitmapFormat);
- begin
- glBitmapDefaultFormat := Format;
- end;
-
-
- procedure glBitmapSetDefaultDeleteTextureOnFree(DeleteTextureOnFree: Boolean);
- begin
- glBitmapDefaultDeleteTextureOnFree := DeleteTextureOnFree;
- end;
-
-
- procedure glBitmapSetDefaultFilter(Min, Mag: Integer);
- begin
- glBitmapDefaultFilterMin := Min;
- glBitmapDefaultFilterMag := Mag;
- end;
-
-
- procedure glBitmapSetDefaultWrap(S: Integer; T: Integer; R: Integer);
- begin
- glBitmapDefaultWrapS := S;
- glBitmapDefaultWrapT := T;
- glBitmapDefaultWrapR := R;
- end;
-
-
- procedure glBitmapSetDefaultFreeDataAfterGenTexture(FreeData: Boolean);
- begin
- glBitmapDefaultFreeDataAfterGenTextures := FreeData;
- end;
-
-
- function glBitmapGetDefaultFormat: TglBitmapFormat;
- begin
- Result := glBitmapDefaultFormat;
- end;
-
-
- function glBitmapGetDefaultDeleteTextureOnFree: Boolean;
- begin
- Result := glBitmapDefaultDeleteTextureOnFree;
- end;
-
-
- procedure glBitmapGetDefaultFilter(var Min, Mag: Integer);
- begin
- Min := glBitmapDefaultFilterMin;
- Mag := glBitmapDefaultFilterMag;
- end;
-
-
- procedure glBitmapGetDefaultTextureWrap(var S, T, R: Integer);
- begin
- S := glBitmapDefaultWrapS;
- T := glBitmapDefaultWrapT;
- R := glBitmapDefaultWrapR;
- end;
-
-
- function glBitmapGetDefaultFreeDataAfterGenTexture: Boolean;
- begin
- Result := glBitmapDefaultFreeDataAfterGenTextures;
- end;
-
-
- { TglBitmap }
-
- procedure TglBitmap.AfterConstruction;
- begin
- inherited;
-
- fID := 0;
- fTarget := 0;
- fMipMap := mmMipmap;
- fIsResident := False;
-
- // get defaults
- fFreeDataAfterGenTexture := glBitmapGetDefaultFreeDataAfterGenTexture;
- fDeleteTextureOnFree := glBitmapGetDefaultDeleteTextureOnFree;
-
- fFormat := glBitmapGetDefaultFormat;
-
- glBitmapGetDefaultFilter(fFilterMin, fFilterMag);
- glBitmapGetDefaultTextureWrap(fWrapS, fWrapT, fWrapR);
- end;
-
-
- procedure TglBitmap.BeforeDestruction;
- begin
- SetDataPointer(nil, ifEmpty);
-
- if ((ID > 0) and (fDeleteTextureOnFree)) then
- glDeleteTextures(1, @ID);
-
- inherited;
- end;
-
-
- constructor TglBitmap.Create;
- begin
- {$IFNDEF GLB_NO_NATIVE_GL}
- ReadOpenGLExtensions;
- {$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(FileName: String);
- begin
- Create;
- LoadFromFile(FileName);
- end;
-
-
- constructor TglBitmap.Create(Stream: TStream);
- begin
- Create;
- LoadFromStream(Stream);
- end;
-
-
- {$IFDEF GLB_DELPHI}
- constructor TglBitmap.CreateFromResourceName(Instance: Cardinal; Resource: String; ResType: PChar);
- begin
- Create;
- LoadFromResource(Instance, Resource, ResType);
- end;
-
-
- constructor TglBitmap.Create(Instance: Cardinal; Resource: String; ResType: PChar);
- begin
- Create;
- LoadFromResource(Instance, Resource, ResType);
- end;
-
-
-
- constructor TglBitmap.Create(Instance: Cardinal; ResourceID: Integer; ResType: PChar);
- begin
- Create;
- LoadFromResourceID(Instance, ResourceID, ResType);
- end;
- {$ENDIF}
-
-
- constructor TglBitmap.Create(Size: TglBitmapPixelPosition;
- Format: TglBitmapInternalFormat);
- var
- Image: pByte;
- ImageSize: Integer;
- begin
- Create;
-
- ImageSize := FormatGetImageSize(Size, Format);
- GetMem(Image, ImageSize);
- try
- FillChar(Image^, ImageSize, #$FF);
-
- SetDataPointer(Image, Format, Size.X, Size.Y);
- except
- FreeMem(Image);
- raise;
- end;
- end;
-
-
- constructor TglBitmap.Create(Size: TglBitmapPixelPosition;
- Format: TglBitmapInternalFormat; Func: TglBitmapFunction; CustomData: Pointer);
- begin
- Create;
- LoadFromFunc(Size, Func, Format, CustomData);
- end;
-
-
- function TglBitmap.Clone: TglBitmap;
- var
- Temp: TglBitmap;
- TempPtr: pByte;
- Size: Integer;
- begin
- Temp := ClassType.Create as TglBitmap;
- try
- // copy texture data if assigned
- if Assigned(Data) then begin
- Size := FormatGetImageSize(glBitmapPosition(Width, Height), InternalFormat);
-
- GetMem(TempPtr, Size);
- try
- Move(Data^, TempPtr^, Size);
- Temp.SetDataPointer(TempPtr, InternalFormat, Width, Height);
- except
- FreeMem(TempPtr);
- raise;
- end;
- end else
- Temp.SetDataPointer(nil, InternalFormat, Width, Height);
-
- // copy properties
- Temp.fID := ID;
- Temp.fTarget := Target;
- Temp.fFormat := Format;
- Temp.fMipMap := MipMap;
- Temp.fAnisotropic := Anisotropic;
- Temp.fBorderColor := fBorderColor;
- Temp.fDeleteTextureOnFree := DeleteTextureOnFree;
- Temp.fFreeDataAfterGenTexture := FreeDataAfterGenTexture;
- Temp.fFilterMin := fFilterMin;
- Temp.fFilterMag := fFilterMag;
- Temp.fWrapS := fWrapS;
- Temp.fWrapT := fWrapT;
- Temp.fWrapR := fWrapR;
- Temp.fFilename := fFilename;
- Temp.fCustomName := fCustomName;
- Temp.fCustomNameW := fCustomNameW;
- Temp.fCustomDataPointer := fCustomDataPointer;
-
- Result := Temp;
- except
- FreeAndNil(Temp);
- raise;
- end;
- end;
-
-
- procedure TglBitmap.LoadFromFile(FileName: String);
- var
- FS: TFileStream;
- begin
- fFilename := FileName;
-
- FS := TFileStream.Create(FileName, fmOpenRead);
- try
- FS.Position := 0;
-
- LoadFromStream(FS);
- finally
- FS.Free;
- end;
- end;
-
-
- procedure TglBitmap.LoadFromStream(Stream: TStream);
- begin
- {$IFDEF GLB_SUPPORT_PNG_READ}
- if not LoadPNG(Stream) then
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- if not LoadJPEG(Stream) then
- {$ENDIF}
- if not LoadDDS(Stream) then
- if not LoadTGA(Stream) then
- if not LoadBMP(Stream) then
- raise EglBitmapException.Create('LoadFromStream - Couldn''t load Stream. It''s possible to be an unknow Streamtype.');
- end;
-
-
- {$IFDEF GLB_DELPHI}
- procedure TglBitmap.LoadFromResource(Instance: Cardinal; Resource: String; ResType: PChar);
- 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
- LoadFromStream(RS);
- finally
- RS.Free;
- end;
- end;
-
-
- procedure TglBitmap.LoadFromResourceID(Instance: Cardinal; ResourceID: Integer; ResType: PChar);
- var
- RS: TResourceStream;
- begin
- RS := TResourceStream.CreateFromID(Instance, ResourceID, ResType);
- try
- LoadFromStream(RS);
- finally
- RS.Free;
- end;
- end;
- {$ENDIF}
-
-
-
- procedure TglBitmap.LoadFromFunc(Size: TglBitmapPixelPosition;
- Func: TglBitmapFunction; Format: TglBitmapInternalFormat; CustomData: Pointer);
- var
- Image: pByte;
- ImageSize: Integer;
- begin
- ImageSize := FormatGetImageSize(Size, Format);
- GetMem(Image, ImageSize);
- try
- FillChar(Image^, ImageSize, #$FF);
-
- SetDataPointer(Image, Format, Size.X, Size.Y);
- except
- FreeMem(Image);
- raise;
- end;
-
- AddFunc(Self, Func, False, Format, CustomData)
- end;
-
-
- procedure TglBitmap.SaveToFile(FileName: String; FileType: TglBitmapFileType);
- var
- FS: TFileStream;
- begin
- FS := TFileStream.Create(FileName, fmCreate);
- try
- FS.Position := 0;
- SaveToStream(FS, FileType);
- finally
- FS.Free;
- end;
- end;
-
-
- procedure TglBitmap.SaveToStream(Stream: TStream; FileType: TglBitmapFileType);
- begin
- case FileType of
- {$IFDEF GLB_SUPPORT_PNG_WRITE}
- ftPNG: SavePng(Stream);
- {$ENDIF}
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- ftJPEG: SaveJPEG(Stream);
- {$ENDIF}
- ftDDS: SaveDDS(Stream);
- ftTGA: SaveTGA(Stream);
- ftBMP: SaveBMP(Stream);
- end;
- end;
-
-
- {$IFDEF GLB_SDL}
- function TglBitmap.AssignToSurface(out Surface: PSDL_Surface): boolean;
- var
- Row, RowSize: Integer;
- pSource, pData: PByte;
- TempDepth: Integer;
- Pix: TglBitmapPixelData;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- Result := Surface.pixels;
- Inc(Result, Row * RowSize);
- end;
-
- begin
- Result := False;
-
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedInternalFormat.Create('AssignToSurface - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- if Assigned(Data) then begin
- case Trunc(FormatGetSize(InternalFormat)) of
- 1: TempDepth := 8;
- 2: TempDepth := 16;
- 3: TempDepth := 24;
- 4: TempDepth := 32;
- else
- raise EglBitmapException.Create('AssignToSurface - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
-
- FormatPreparePixel(Pix, InternalFormat);
-
- with Pix.PixelDesc do
- Surface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, TempDepth, RedRange shl RedShift, GreenRange shl GreenShift, BlueRange shl BlueShift, AlphaRange shl AlphaShift);
-
- pSource := Data;
- RowSize := Trunc(FileWidth * FormatGetSize(InternalFormat));
-
- for Row := 0 to FileHeight -1 do begin
- pData := GetRowPointer(Row);
-
- if Assigned(pData) then begin
- Move(pSource^, pData^, RowSize);
- Inc(pSource, RowSize);
- end;
- end;
-
- Result := True;
- end;
- end;
-
-
- function TglBitmap.AssignFromSurface(const Surface: PSDL_Surface): boolean;
- var
- pSource, pData, pTempData: PByte;
- Row, RowSize, TempWidth, TempHeight: Integer;
- IntFormat: TglBitmapInternalFormat;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- Result := Surface^.pixels;
- Inc(Result, Row * RowSize);
- end;
-
- begin
- Result := False;
-
- if (Assigned(Surface)) then begin
- with Surface^.format^ do begin
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifLuminance) then
- IntFormat := ifLuminance
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifLuminanceAlpha) then
- IntFormat := ifLuminanceAlpha
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifRGBA4) then
- IntFormat := ifRGBA4
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifR5G6B5) then
- IntFormat := ifR5G6B5
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifRGB5A1) then
- IntFormat := ifRGB5A1
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifBGR8) then
- IntFormat := ifBGR8
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifRGB8) then
- IntFormat := ifRGB8
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifBGRA8) then
- IntFormat := ifBGRA8
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifRGBA8) then
- IntFormat := ifRGBA8
- else
-
- if FormatCheckFormat(RMask, GMask, BMask, AMask, ifRGB10A2) then
- IntFormat := ifRGB10A2
- else
- raise EglBitmapException.Create('AssignFromSurface - Invalid Pixelformat.');
- end;
-
- TempWidth := Surface^.w;
- TempHeight := Surface^.h;
-
- RowSize := Trunc(TempWidth * FormatGetSize(IntFormat));
-
- 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 Surface: PSDL_Surface): boolean;
- var
- Row, Col, AlphaInterleave: Integer;
- pSource, pDest: PByte;
-
- function GetRowPointer(Row: Integer): pByte;
- begin
- Result := Surface.pixels;
- Inc(Result, Row * Width);
- end;
-
- begin
- Result := False;
-
- if Assigned(Data) then begin
- if InternalFormat in [ifAlpha, ifLuminanceAlpha, ifBGRA8, ifRGBA8] then begin
- Surface := SDL_CreateRGBSurface(SDL_SWSURFACE, Width, Height, 8, $FF, $FF, $FF, 0);
-
- case InternalFormat of
- ifLuminanceAlpha:
- AlphaInterleave := 1;
- ifBGRA8, ifRGBA8:
- AlphaInterleave := 3;
- else
- AlphaInterleave := 0;
- end;
-
- // Copy Data
- pSource := Data;
-
- for Row := 0 to Height -1 do begin
- pDest := GetRowPointer(Row);
-
- if Assigned(pDest) then begin
- for Col := 0 to Width -1 do begin
- Inc(pSource, AlphaInterleave);
- pDest^ := pSource^;
- Inc(pDest);
- Inc(pSource);
- end;
- end;
- end;
-
- Result := True;
- end;
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromSurface(Surface: PSDL_Surface; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- glBitmap: TglBitmap2D;
- begin
- glBitmap := TglBitmap2D.Create;
- try
- glBitmap.AssignFromSurface(Surface);
-
- Result := AddAlphaFromglBitmap(glBitmap, Func, CustomData);
- finally
- glBitmap.Free;
- end;
- end;
- {$ENDIF}
-
-
- {$IFDEF GLB_DELPHI}
- function TglBitmap.AssignFromBitmap(const Bitmap: 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.AssignToBitmap(const Bitmap: TBitmap): boolean;
- var
- Row: Integer;
- pSource, pData: PByte;
- begin
- Result := False;
-
- if Assigned(Data) then begin
- if Assigned(Bitmap) then begin
- Bitmap.Width := Width;
- Bitmap.Height := Height;
-
- case InternalFormat of
- ifAlpha, 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.AssignAlphaToBitmap(const Bitmap: 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(Bitmap: TBitmap; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- glBitmap: TglBitmap2D;
- begin
- glBitmap := TglBitmap2D.Create;
- try
- glBitmap.AssignFromBitmap(Bitmap);
-
- Result := AddAlphaFromglBitmap(glBitmap, Func, CustomData);
- finally
- glBitmap.Free;
- end;
- end;
- {$ENDIF}
-
-
- function TglBitmap.AddAlphaFromFile(FileName: String; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- FS: TFileStream;
- begin
- FS := TFileStream.Create(FileName, fmOpenRead);
- try
- Result := AddAlphaFromStream(FS, Func, CustomData);
- finally
- FS.Free;
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromStream(Stream: TStream; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- glBitmap: TglBitmap2D;
- begin
- glBitmap := TglBitmap2D.Create(Stream);
- try
- Result := AddAlphaFromglBitmap(glBitmap, Func, CustomData);
- finally
- glBitmap.Free;
- end;
- end;
-
-
- {$IFDEF GLB_DELPHI}
- function TglBitmap.AddAlphaFromResource(Instance: Cardinal; Resource: String;
- ResType: PChar; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- RS: TResourceStream;
- TempPos: Integer;
- ResTypeStr: String;
- TempResType: PChar;
- begin
- if Assigned(ResType) then
- TempResType := ResType
- else
- begin
- TempPos := Pos('.', Resource);
- ResTypeStr := UpperCase(Copy(Resource, TempPos + 1, Length(Resource) - TempPos));
- Resource := UpperCase(Copy(Resource, 0, TempPos -1));
- TempResType := PChar(ResTypeStr);
- end;
-
- RS := TResourceStream.Create(Instance, Resource, TempResType);
- try
- Result := AddAlphaFromStream(RS, Func, CustomData);
- finally
- RS.Free;
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromResourceID(Instance: Cardinal; ResourceID: Integer;
- ResType: PChar; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- RS: TResourceStream;
- begin
- RS := TResourceStream.CreateFromID(Instance, ResourceID, ResType);
- try
- Result := AddAlphaFromStream(RS, Func, CustomData);
- finally
- RS.Free;
- end;
- end;
- {$ENDIF}
-
-
- procedure glBitmapColorKeyAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- Dest.Red := Source.Red;
- Dest.Green := Source.Green;
- Dest.Blue := Source.Blue;
-
- with TglBitmapPixelData(CustomData^) do
- if ((Dest.Red <= Red ) and (Dest.Red >= PixelDesc.RedRange ) and
- (Dest.Green <= Green) and (Dest.Green >= PixelDesc.GreenRange) and
- (Dest.Blue <= Blue ) and (Dest.Blue >= PixelDesc.BlueRange )) then
- Dest.Alpha := 0
- else
- Dest.Alpha := Dest.PixelDesc.AlphaRange;
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromColorKey(Red, Green, Blue: Byte; Deviation: Byte
- ): Boolean;
- begin
- Result := AddAlphaFromColorKeyFloat(Red / $FF, Green / $FF, Blue / $FF, Deviation / $FF);
- end;
-
-
- function TglBitmap.AddAlphaFromColorKeyRange(Red, Green, Blue: Cardinal; Deviation: Cardinal = 0): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, FormatGetWithAlpha(InternalFormat));
-
- Result := AddAlphaFromColorKeyFloat(
- Red / PixelData.PixelDesc.RedRange,
- Green / PixelData.PixelDesc.GreenRange,
- Blue / PixelData.PixelDesc.BlueRange,
- Deviation / Max(PixelData.PixelDesc.RedRange, Max(PixelData.PixelDesc.GreenRange, PixelData.PixelDesc.BlueRange)));
- end;
-
-
- function TglBitmap.AddAlphaFromColorKeyFloat(Red, Green, Blue: Single; Deviation: Single = 0): Boolean;
- var
- TempR, TempG, TempB: Cardinal;
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, FormatGetWithAlpha(InternalFormat));
-
- // Calculate Colorrange
- with PixelData.PixelDesc do begin
- TempR := Trunc(RedRange * Deviation);
- TempG := Trunc(GreenRange * Deviation);
- TempB := Trunc(BlueRange * Deviation);
-
- PixelData.Red := Min(RedRange, Trunc(RedRange * Red) + TempR);
- RedRange := Max(0, Trunc(RedRange * Red) - TempR);
- PixelData.Green := Min(GreenRange, Trunc(GreenRange * Green) + TempG);
- GreenRange := Max(0, Trunc(GreenRange * Green) - TempG);
- PixelData.Blue := Min(BlueRange, Trunc(BlueRange * Blue) + TempB);
- BlueRange := Max(0, Trunc(BlueRange * Blue) - TempB);
- PixelData.Alpha := 0;
- AlphaRange := 0;
- end;
-
- Result := AddAlphaFromFunc(glBitmapColorKeyAlphaFunc, @PixelData);
- end;
-
-
- procedure glBitmapValueAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- Dest.Red := Source.Red;
- Dest.Green := Source.Green;
- Dest.Blue := Source.Blue;
-
- with TglBitmapPixelData(CustomData^) do
- Dest.Alpha := Alpha;
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromValue(Alpha: Byte): Boolean;
- begin
- Result := AddAlphaFromValueFloat(Alpha / $FF);
- end;
-
-
- function TglBitmap.AddAlphaFromValueFloat(Alpha: Single): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, FormatGetWithAlpha(InternalFormat));
-
- with PixelData.PixelDesc do
- PixelData.Alpha := Min(AlphaRange, Max(0, Round(AlphaRange * Alpha)));
-
- Result := AddAlphaFromFunc(glBitmapValueAlphaFunc, @PixelData);
- end;
-
-
- function TglBitmap.AddAlphaFromValueRange(Alpha: Cardinal): Boolean;
- var
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, FormatGetWithAlpha(InternalFormat));
-
- Result := AddAlphaFromValueFloat(Alpha / PixelData.PixelDesc.AlphaRange);
- end;
-
-
- procedure glBitmapInvertFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- Dest.Red := Source.Red;
- Dest.Green := Source.Green;
- Dest.Blue := Source.Blue;
- Dest.Alpha := Source.Alpha;
-
- if (Integer(CustomData) and $1 > 0) then begin
- Dest.Red := Dest.Red xor Dest.PixelDesc.RedRange;
- Dest.Green := Dest.Green xor Dest.PixelDesc.GreenRange;
- Dest.Blue := Dest.Blue xor Dest.PixelDesc.BlueRange;
- end;
-
- if (Integer(CustomData) and $2 > 0) then begin
- Dest.Alpha := Dest.Alpha xor Dest.PixelDesc.AlphaRange;
- end;
- end;
- end;
-
-
- procedure TglBitmap.Invert(UseRGB: Boolean; UseAlpha: Boolean);
- begin
- if ((UseRGB) or (UseAlpha)) then
- AddFunc(glBitmapInvertFunc, False, Pointer(Integer(UseAlpha) shl 1 or Integer(UseRGB)));
- end;
-
-
- procedure TglBitmap.SetFilter(Min, Mag: Integer);
- begin
- case Min 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 Minfilter.');
- end;
-
- case Mag of
- GL_NEAREST:
- fFilterMag := GL_NEAREST;
- GL_LINEAR:
- fFilterMag := GL_LINEAR;
- else
- raise EglBitmapException.Create('SetFilter - Unknow Magfilter.');
- end;
-
- // If texture is created then assign filter
- if ID > 0 then begin
- Bind(False);
-
- glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, fFilterMag);
-
- if (MipMap = mmNone) or (Target = GL_TEXTURE_RECTANGLE_ARB) 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(S: Integer; T: Integer; R: Integer);
- begin
- case S of
- GL_CLAMP:
- fWrapS := GL_CLAMP;
- GL_REPEAT:
- fWrapS := GL_REPEAT;
- GL_CLAMP_TO_EDGE:
- begin
- if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
- fWrapS := GL_CLAMP_TO_EDGE
- else
- fWrapS := GL_CLAMP;
- end;
- GL_CLAMP_TO_BORDER:
- begin
- if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
- fWrapS := GL_CLAMP_TO_BORDER
- else
- fWrapS := 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
- fWrapS := GL_MIRRORED_REPEAT
- else
- raise EglBitmapException.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (S).');
- end;
- else
- raise EglBitmapException.Create('SetWrap - Unknow Texturewrap (S).');
- end;
-
- case T of
- GL_CLAMP:
- fWrapT := GL_CLAMP;
- GL_REPEAT:
- fWrapT := GL_REPEAT;
- GL_CLAMP_TO_EDGE:
- begin
- if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
- fWrapT := GL_CLAMP_TO_EDGE
- else
- fWrapT := GL_CLAMP;
- end;
- GL_CLAMP_TO_BORDER:
- begin
- if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
- fWrapT := GL_CLAMP_TO_BORDER
- else
- fWrapT := 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
- fWrapT := GL_MIRRORED_REPEAT
- else
- raise EglBitmapException.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (T).');
- end;
- else
- raise EglBitmapException.Create('SetWrap - Unknow Texturewrap (T).');
- end;
-
- case R of
- GL_CLAMP:
- fWrapR := GL_CLAMP;
- GL_REPEAT:
- fWrapR := GL_REPEAT;
- GL_CLAMP_TO_EDGE:
- begin
- if GL_VERSION_1_2 or GL_EXT_texture_edge_clamp then
- fWrapR := GL_CLAMP_TO_EDGE
- else
- fWrapR := GL_CLAMP;
- end;
- GL_CLAMP_TO_BORDER:
- begin
- if GL_VERSION_1_3 or GL_ARB_texture_border_clamp then
- fWrapR := GL_CLAMP_TO_BORDER
- else
- fWrapR := 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
- fWrapR := GL_MIRRORED_REPEAT
- else
- raise EglBitmapException.Create('SetWrap - Unsupported Texturewrap GL_MIRRORED_REPEAT (R).');
- end;
- else
- raise EglBitmapException.Create('SetWrap - Unknow Texturewrap (R).');
- end;
-
- 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.SetDataPointer(NewData: pByte;
- Format: TglBitmapInternalFormat; Width: Integer; Height: Integer);
- begin
- // Data
- if Data <> NewData then begin
- if (Assigned(Data))
- then FreeMem(Data);
-
- fData := NewData;
- end;
-
- if Data = nil then begin
- fInternalFormat := ifEmpty;
- fPixelSize := 0;
- fRowSize := 0;
- end else begin
- if Width <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffX];
- fDimension.X := Width;
- end;
-
- if Height <> -1 then begin
- fDimension.Fields := fDimension.Fields + [ffY];
- fDimension.Y := Height;
- end;
-
- fInternalFormat := Format;
- fPixelSize := Trunc(FormatGetSize(InternalFormat));
- fRowSize := Trunc(FormatGetSize(InternalFormat) * Self.Width);
- end;
- end;
-
- {$IFDEF GLB_SUPPORT_PNG_READ}
- {$IFDEF GLB_LIB_PNG}
- procedure glBitmap_libPNG_read_func(png: png_structp; buffer: png_bytep; size: cardinal); cdecl;
- begin
- TStream(png_get_io_ptr(png)).Read(buffer^, size);
- end;
- {$ENDIF}
-
-
- function TglBitmap.LoadPNG(Stream: TStream): Boolean;
- {$IFDEF GLB_SDL_IMAGE}
- var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
- begin
- Result := False;
-
- RWops := glBitmapCreateRWops(Stream);
- try
- if IMG_isPNG(RWops) > 0 then begin
- Surface := IMG_LoadPNG_RW(RWops);
- try
- AssignFromSurface(Surface);
- Result := True;
- finally
- SDL_FreeSurface(Surface);
- end;
- end;
- finally
- SDL_FreeRW(RWops);
- end;
- end;
- {$ENDIF}
- {$IFDEF GLB_LIB_PNG}
- 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 := ifLuminance;
- PNG_COLOR_TYPE_GRAY_ALPHA:
- Format := ifLuminanceAlpha;
- PNG_COLOR_TYPE_RGB:
- Format := ifRGB8;
- PNG_COLOR_TYPE_RGB_ALPHA:
- Format := ifRGBA8;
- 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;
- {$ENDIF}
- {$IFDEF GLB_PNGIMAGE}
- var
- StreamPos: Int64;
- Png: TPNGObject;
- Header: Array[0..7] of Byte;
- Row, Col, PixSize, LineSize: Integer;
- NewImage, pSource, pDest, pAlpha: pByte;
- Format: TglBitmapInternalFormat;
-
- const
- PngHeader: Array[0..7] of Byte = (#137, #80, #78, #71, #13, #10, #26, #10);
-
- begin
- Result := False;
-
- StreamPos := Stream.Position;
- Stream.Read(Header[0], SizeOf(Header));
- Stream.Position := StreamPos;
-
- {Test if the header matches}
- if Header = PngHeader then begin
- Png := TPNGObject.Create;
- try
- Png.LoadFromStream(Stream);
-
- case Png.Header.ColorType of
- COLOR_GRAYSCALE:
- Format := ifLuminance;
- COLOR_GRAYSCALEALPHA:
- Format := ifLuminanceAlpha;
- COLOR_RGB:
- Format := ifBGR8;
- COLOR_RGBALPHA:
- Format := ifBGRA8;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- PixSize := Trunc(FormatGetSize(Format));
- LineSize := Integer(Png.Header.Width) * PixSize;
-
- GetMem(NewImage, LineSize * Integer(Png.Header.Height));
- try
- pDest := NewImage;
-
- case Png.Header.ColorType of
- COLOR_RGB, COLOR_GRAYSCALE:
- begin
- for Row := 0 to Png.Height -1 do begin
- Move (Png.Scanline[Row]^, pDest^, LineSize);
- Inc(pDest, LineSize);
- end;
- end;
- COLOR_RGBALPHA, COLOR_GRAYSCALEALPHA:
- begin
- PixSize := PixSize -1;
-
- for Row := 0 to Png.Height -1 do begin
- pSource := Png.Scanline[Row];
- pAlpha := pByte(Png.AlphaScanline[Row]);
-
- for Col := 0 to Png.Width -1 do begin
- Move (pSource^, pDest^, PixSize);
- Inc(pSource, PixSize);
- Inc(pDest, PixSize);
-
- pDest^ := pAlpha^;
- inc(pAlpha);
- Inc(pDest);
- end;
- end;
- end;
- else
- raise EglBitmapException.Create ('LoadPng - Unsupported Colortype found.');
- end;
-
- SetDataPointer(NewImage, Format, Png.Header.Width, Png.Header.Height);
-
- Result := True;
- except
- FreeMem(NewImage);
- raise;
- end;
- finally
- Png.Free;
- end;
- end;
- end;
- {$ENDIF}
- {$ENDIF}
-
-
- {$IFDEF GLB_LIB_JPEG}
- type
- glBitmap_libJPEG_source_mgr_ptr = ^glBitmap_libJPEG_source_mgr;
- glBitmap_libJPEG_source_mgr = record
- pub: jpeg_source_mgr;
-
- SrcStream: TStream;
- SrcBuffer: array [1..4096] of byte;
- end;
-
-
- glBitmap_libJPEG_dest_mgr_ptr = ^glBitmap_libJPEG_dest_mgr;
- glBitmap_libJPEG_dest_mgr = record
- pub: jpeg_destination_mgr;
-
- DestStream: TStream;
- DestBuffer: array [1..4096] of byte;
- end;
-
-
-
- procedure glBitmap_libJPEG_error_exit(cinfo: j_common_ptr); cdecl;
- //var
- // Msg: String;
- begin
- // SetLength(Msg, 256);
- // cinfo^.err^.format_message(cinfo, pChar(Msg));
-
- // Writeln('ERROR [' + IntToStr(cinfo^.err^.msg_code) + '] ' + Msg);
-
- // cinfo^.global_state := 0;
-
- // jpeg_abort(cinfo);
- end;
-
-
- procedure glBitmap_libJPEG_output_message(cinfo: j_common_ptr); cdecl;
- //var
- // Msg: String;
- begin
- // SetLength(Msg, 256);
- // cinfo^.err^.format_message(cinfo, pChar(Msg));
-
- // Writeln('OUTPUT [' + IntToStr(cinfo^.err^.msg_code) + '] ' + Msg);
-
- // cinfo^.global_state := 0;
- end;
-
-
- procedure glBitmap_libJPEG_init_source(cinfo: j_decompress_ptr); cdecl;
- begin
- 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;
-
-
- procedure glBitmap_libJPEG_term_source(cinfo: j_decompress_ptr); cdecl;
- begin
- end;
-
-
- procedure glBitmap_libJPEG_init_destination(cinfo: j_compress_ptr); cdecl;
- begin
- 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}
-
-
- {$IFDEF GLB_SUPPORT_JPEG_READ}
- function TglBitmap.LoadJPEG(Stream: TStream): Boolean;
- {$IFDEF GLB_SDL_IMAGE}
- var
- Surface: PSDL_Surface;
- RWops: PSDL_RWops;
- begin
- Result := False;
-
- RWops := glBitmapCreateRWops(Stream);
- 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;
- {$ENDIF}
- {$IFDEF GLB_LIB_JPEG}
- 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;
- {$ENDIF}
- {$IFDEF GLB_DELPHI_JPEG}
- 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] = $D8)) then begin
- bmp := TBitmap.Create;
- try
- jpg := TJPEGImage.Create;
- try
- jpg.LoadFromStream(Stream);
- bmp.Assign(jpg);
- Result := AssignFromBitmap(bmp);
- finally
- jpg.Free;
- end;
- finally
- bmp.Free;
- end;
- end;
- end;
- {$ENDIF}
- {$ENDIF}
-
-
- 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;
-
- TBMPInfoOS = packed record
- biSize: Cardinal;
- biWidth: Longint;
- biHeight: Longint;
- biPlanes: Word;
- biBitCount: Word;
- end;
-
- // TBMPPalette = record
- // case Boolean of
- // True : (Colors: array[Byte] of TRGBQUAD);
- // False: (redMask, greenMask, blueMask: Cardinal);
- // end;
-
- function TglBitmap.LoadBMP(Stream: TStream): Boolean;
- var
- StreamPos: Int64;
- Header: TBMPHeader;
- Info: TBMPInfo;
- NewImage, pData: pByte;
-
- Format: TglBitmapInternalFormat;
- LineSize, Padding, LineIdx: Integer;
- RedMask, GreenMask, BlueMask, AlphaMask: Cardinal;
-
- PaddingBuff: Cardinal;
-
-
- function GetLineWidth : Integer;
- begin
- Result := ((Info.biWidth * Info.biBitCount + 31) and - 32) shr 3;
- end;
-
-
- begin
- Result := False;
-
- RedMask := 0;
- GreenMask := 0;
- BlueMask := 0;
- Format := ifEmpty;
-
- // Header
- StreamPos := Stream.Position;
- Stream.Read(Header, SizeOf(Header));
-
- if Header.bfType = BMP_MAGIC then begin
- Stream.Read(Info, SizeOf(Info));
-
- // Check for Compression
- if Info.biCompression <> BMP_COMP_RGB then begin
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- // Read Bitmasks for 16 or 32 Bit (24 Bit dosn't support Bitmasks!)
- if (Info.biBitCount = 16) or (Info.biBitCount = 32) then begin
- Stream.Read(RedMask, SizeOf(Cardinal));
- Stream.Read(GreenMask, SizeOf(Cardinal));
- Stream.Read(BlueMask, SizeOf(Cardinal));
- Stream.Read(AlphaMask, SizeOf(Cardinal));
- end;
- end else begin
- // RLE compression is unsupported
- Stream.Position := StreamPos;
-
- Exit;
- end;
- end;
-
- // Skip palette
- if Info.biBitCount < 16 then
- Stream.Position := Stream.Position + Info.biClrUsed * 4;
-
- // Jump to the data
- Stream.Position := StreamPos + Header.bfOffBits;
-
- // Select Format
- case Info.biBitCount of
- 8 : Format := ifLuminance;
- 16:
- begin
- if (RedMask = 0) and (GreenMask = 0) and (BlueMask = 0) then begin
- Format := ifRGB5A1;
- end else begin
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask, ifLuminanceAlpha) then
- Format := ifLuminanceAlpha;
-
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask, ifRGBA4) then
- Format := ifRGBA4;
-
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, 0, ifRGB5A1) then
- Format := ifRGB5A1;
-
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, 0, ifR5G6B5) then
- Format := ifR5G6B5;
- end;
- end;
- 24: Format := ifBGR8;
- 32:
- begin
- if (RedMask = 0) and (GreenMask = 0) and (BlueMask = 0) then begin
- Format := ifBGRA8;
- end else begin
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask, ifRGBA8) then
- Format := ifRGBA8;
-
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask, ifBGRA8) then
- Format := ifBGRA8;
-
- if FormatCheckFormat(RedMask, GreenMask, BlueMask, AlphaMask, ifRGB10A2) then
- Format := ifRGB10A2;
- end;
- end;
- end;
-
- if Format <> ifEmpty then begin
- LineSize := Trunc(Info.biWidth * FormatGetSize(Format));
- Padding := GetLineWidth - LineSize;
-
- // copying data
- GetMem(NewImage, Info.biHeight * LineSize);
- try
- FillChar(NewImage^, Info.biHeight * LineSize, $FF);
-
- // Set pData to last Line
- pData := NewImage;
- Inc(pData, LineSize * (Info.biHeight -1));
-
- // Copy Image Data
- for LineIdx := 0 to Info.biHeight - 1 do begin
- Stream.Read(pData^, LineSize);
- Dec(pData, LineSize);
-
- Stream.Read(PaddingBuff, Padding);
- end;
-
- // Set new Image
- SetDataPointer(NewImage, Format, Info.biWidth, Info.biHeight);
-
- Result := True;
- except
- FreeMem(NewImage);
- raise;
- end;
- end;
- end
- else Stream.Position := StreamPos;
- end;
-
-
- const
- DDS_MAGIC = $20534444;
-
- // DDS_header.dwFlags
- DDSD_CAPS = $00000001;
- DDSD_HEIGHT = $00000002;
- DDSD_WIDTH = $00000004;
- DDSD_PITCH = $00000008;
- DDSD_PIXELFORMAT = $00001000;
- DDSD_MIPMAPCOUNT = $00020000;
- DDSD_LINEARSIZE = $00080000;
- DDSD_DEPTH = $00800000;
-
- // DDS_header.sPixelFormat.dwFlags
- DDPF_ALPHAPIXELS = $00000001;
- DDPF_FOURCC = $00000004;
- DDPF_INDEXED = $00000020;
- DDPF_RGB = $00000040;
-
- // DDS_header.sCaps.dwCaps1
- DDSCAPS_COMPLEX = $00000008;
- DDSCAPS_TEXTURE = $00001000;
- DDSCAPS_MIPMAP = $00400000;
-
- // DDS_header.sCaps.dwCaps2
- DDSCAPS2_CUBEMAP = $00000200;
- DDSCAPS2_CUBEMAP_POSITIVEX = $00000400;
- DDSCAPS2_CUBEMAP_NEGATIVEX = $00000800;
- DDSCAPS2_CUBEMAP_POSITIVEY = $00001000;
- DDSCAPS2_CUBEMAP_NEGATIVEY = $00002000;
- DDSCAPS2_CUBEMAP_POSITIVEZ = $00004000;
- DDSCAPS2_CUBEMAP_NEGATIVEZ = $00008000;
- DDSCAPS2_VOLUME = $00200000;
-
- 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;
- dwAlphaBitMask: Cardinal;
- end;
-
- TDDSCaps = packed record
- dwCaps1: Cardinal;
- dwCaps2: Cardinal;
- dwDDSX: Cardinal;
- dwReserved: Cardinal;
- end;
-
- TDDSHeader = packed record
- dwMagic: Cardinal;
- 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;
-
- 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;
- fFormat := aValue;
- 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;
-
- function TglBitmap.LoadDDS(Stream: TStream): Boolean;
- var
- Header: TDDSHeader;
- StreamPos: Int64;
- Y, LineSize: Cardinal;
-
- // MipMapCount, X, Y, XSize, YSize: Cardinal;
- RowSize: Cardinal;
- NewImage, pData: pByte;
- Format: TglBitmapInternalFormat;
-
-
- function RaiseEx : Exception;
- begin
- Result := EglBitmapException.Create('LoadDDS - unsupported Pixelformat found.');
- end;
-
-
- function GetInternalFormat: TglBitmapInternalFormat;
- begin
- with Header.PixelFormat do begin
- // Compresses
- if (dwFlags and DDPF_FOURCC) > 0 then begin
- case Header.PixelFormat.dwFourCC of
- D3DFMT_DXT1: Result := ifDXT1;
- D3DFMT_DXT3: Result := ifDXT3;
- D3DFMT_DXT5: Result := ifDXT5;
- else
- raise RaiseEx;
- end;
- end else
-
- // RGB
- if (dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS)) > 0 then begin
- case dwRGBBitCount of
- 8:
- begin
- if dwFlags and DDPF_ALPHAPIXELS > 0 then
- Result := ifAlpha
- else
- Result := ifLuminance;
- end;
- 16:
- begin
- if dwFlags and DDPF_ALPHAPIXELS > 0 then begin
- // Alpha
- case GetBitSize(dwRBitMask) of
- 5: Result := ifRGB5A1;
- 4: Result := ifRGBA4;
- else
- Result := ifLuminanceAlpha;
- end;
- end else begin
- // no Alpha
- Result := ifR5G6B5;
- end;
- end;
- 24:
- begin
- if dwRBitMask > dwBBitMask then
- Result := ifBGR8
- else
- Result := ifRGB8;
- end;
- 32:
- begin
- if GetBitSize(dwRBitMask) = 10 then
- Result := ifRGB10A2
- else
-
- if dwRBitMask > dwBBitMask then
- Result := ifBGRA8
- else
- Result := ifRGBA8;
- end;
- else
- raise RaiseEx;
- end;
- end else
- raise RaiseEx;
- end;
- end;
-
- begin
- Result := False;
-
- // Header
- StreamPos := Stream.Position;
- Stream.Read(Header, sizeof(Header));
-
- if ((Header.dwMagic <> DDS_MAGIC) or (Header.dwSize <> 124) or
- ((Header.dwFlags and DDSD_PIXELFORMAT) = 0) or ((Header.dwFlags and DDSD_CAPS) = 0)) then begin
- Stream.Position := StreamPos;
- Exit;
- end;
-
- // Pixelformat
- // if Header.dwFlags and DDSD_MIPMAPCOUNT <> 0
- // then MipMapCount := Header.dwMipMapCount
- // else MipMapCount := 1;
-
- Format := GetInternalFormat;
- LineSize := Trunc(Header.dwWidth * FormatGetSize(Format));
-
- GetMem(NewImage, Header.dwHeight * LineSize);
- try
- pData := NewImage;
-
- // 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
- Stream.Read(pData^, RowSize);
- Inc(pData, LineSize);
- end;
- end else
-
- // RGB(A)
- if (Header.PixelFormat.dwFlags and (DDPF_RGB or DDPF_ALPHAPIXELS)) > 0 then begin
- RowSize := Header.dwPitchOrLinearSize;
-
- for Y := 0 to Header.dwHeight -1 do begin
- Stream.Read(pData^, RowSize);
- Inc(pData, LineSize);
- end;
- end
- else raise RaiseEx;
-
- SetDataPointer(NewImage, Format, Header.dwWidth, Header.dwHeight);
-
- Result := True;
- except
- FreeMem(NewImage);
- raise;
- end;
- end;
-
-
- type
- TTGAHeader = packed record
- ImageID: Byte;
- ColorMapType: Byte;
- ImageType: Byte;
- ColorMapSpec: Array[0..4] of Byte;
- OrigX: Word;
- OrigY: Word;
- Width: Word;
- Height: Word;
- Bpp: Byte;
- ImageDes: Byte;
- end;
-
- const
- TGA_UNCOMPRESSED_RGB = 2;
- TGA_UNCOMPRESSED_GRAY = 3;
- TGA_COMPRESSED_RGB = 10;
- TGA_COMPRESSED_GRAY = 11;
-
-
-
- function TglBitmap.LoadTGA(Stream: TStream): Boolean;
- var
- Header: TTGAHeader;
- NewImage, pData: PByte;
- StreamPos: Int64;
- PixelSize, LineSize, YStart, YEnd, YInc: Integer;
- Format: TglBitmapInternalFormat;
-
- const
- CACHE_SIZE = $4000;
-
- procedure ReadUncompressed;
- var
- RowSize: Integer;
- begin
- RowSize := Header.Width * PixelSize;
-
- // copy line by line
- while YStart <> YEnd + YInc do begin
- pData := NewImage;
- Inc(pData, YStart * LineSize);
-
- Stream.Read(pData^, RowSize);
- Inc(YStart, YInc);
- end;
- end;
-
-
- procedure ReadCompressed;
- var
- HeaderWidth, HeaderHeight: Integer;
- LinePixelsRead, ImgPixelsRead, ImgPixelsToRead: Integer;
-
- Cache: PByte;
- CacheSize, CachePos: Integer;
-
- Temp: Byte;
- TempBuf: Array [0..15] of Byte;
-
- PixelRepeat: Boolean;
- PixelToRead, TempPixels: Integer;
-
-
- procedure CheckLine;
- begin
- if LinePixelsRead >= HeaderWidth then begin
- LinePixelsRead := 0;
- pData := NewImage;
- Inc(YStart, YInc);
- Inc(pData, YStart * LineSize);
- end;
- end;
-
-
- procedure CachedRead(var Buffer; Count: Integer);
- var
- BytesRead: Integer;
- begin
- if (CachePos + Count) > CacheSize then begin
- BytesRead := 0;
-
- // Read Data
- if CacheSize - CachePos > 0 then begin
- BytesRead := CacheSize - CachePos;
-
- Move(pByteArray(Cache)^[CachePos], Buffer, BytesRead);
- Inc(CachePos, BytesRead);
- end;
-
- // Reload Data
- CacheSize := Min(CACHE_SIZE, Stream.Size - Stream.Position);
- Stream.Read(Cache^, CacheSize);
- CachePos := 0;
-
- // Read else
- if Count - BytesRead > 0 then begin
- Move(pByteArray(Cache)^[CachePos], TByteArray(Buffer)[BytesRead], Count - BytesRead);
- Inc(CachePos, Count - BytesRead);
- end;
- end else begin
- Move(pByteArray(Cache)^[CachePos], Buffer, Count);
- Inc(CachePos, Count);
- end;
- end;
-
-
- begin
- CacheSize := 0;
- CachePos := 0;
-
- HeaderWidth := Header.Width;
- HeaderHeight := Header.Height;
-
- GetMem(Cache, CACHE_SIZE); // 16K Buffer
- try
- ImgPixelsToRead := HeaderWidth * HeaderHeight;
- ImgPixelsRead := 0;
- LinePixelsRead := 0;
-
- pData := NewImage;
- Inc(pData, YStart * LineSize);
-
- // Read until all Pixels
- repeat
- CachedRead(Temp, 1);
-
- PixelRepeat := Temp and $80 > 0;
- PixelToRead := (Temp and $7F) + 1;
-
- Inc(ImgPixelsRead, PixelToRead);
-
- if PixelRepeat then begin
- // repeat one pixel x times
- CachedRead(TempBuf[0], PixelSize);
-
- // repeat Pixel
- while PixelToRead > 0 do begin
- CheckLine;
-
- TempPixels := HeaderWidth - LinePixelsRead;
- if PixelToRead < TempPixels then
- TempPixels := PixelToRead;
-
- Inc(LinePixelsRead, TempPixels);
- Dec(PixelToRead, TempPixels);
-
- while TempPixels > 0 do begin
- case PixelSize of
- 1:
- begin
- pData^ := TempBuf[0];
- Inc(pData);
- end;
- 2:
- begin
- pWord(pData)^ := pWord(@TempBuf[0])^;
- Inc(pData, 2);
- end;
- 3:
- begin
- pWord(pData)^ := pWord(@TempBuf[0])^;
- Inc(pData, 2);
- pData^ := TempBuf[2];
- Inc(pData);
- end;
- 4:
- begin
- pDWord(pData)^ := pDWord(@TempBuf[0])^;
- Inc(pData, 4);
- end;
- end;
-
- Dec(TempPixels);
- end;
- end;
- end else begin
- // copy x pixels
- while PixelToRead > 0 do begin
- CheckLine;
-
- TempPixels := HeaderWidth - LinePixelsRead;
- if PixelToRead < TempPixels then
- TempPixels := PixelToRead;
-
- CachedRead(pData^, PixelSize * TempPixels);
- Inc(pData, PixelSize * TempPixels);
-
- Inc(LinePixelsRead, TempPixels);
-
- Dec(PixelToRead, TempPixels);
- end;
- end;
- until ImgPixelsRead >= ImgPixelsToRead;
- finally
- FreeMem(Cache)
- end;
- end;
-
- begin
- Result := False;
-
- // reading header to test file and set cursor back to begin
- StreamPos := Stream.Position;
- Stream.Read(Header, SizeOf(Header));
-
- // no colormapped files
- if (Header.ColorMapType = 0) then begin
- if Header.ImageType in [TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY, TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY] then begin
- case Header.Bpp of
- 8: Format := ifAlpha;
- 16: Format := ifLuminanceAlpha;
- 24: Format := ifBGR8;
- 32: Format := ifBGRA8;
- else
- raise EglBitmapException.Create('LoadTga - unsupported BitsPerPixel found.');
- end;
-
- // skip image ID
- if Header.ImageID <> 0 then
- Stream.Position := Stream.Position + Header.ImageID;
-
- PixelSize := Trunc(FormatGetSize(Format));
- LineSize := Trunc(Header.Width * PixelSize);
-
- GetMem(NewImage, LineSize * Header.Height);
- try
- // Row direction
- if (Header.ImageDes and $20 > 0) then begin
- YStart := 0;
- YEnd := Header.Height -1;
- YInc := 1;
- end else begin
- YStart := Header.Height -1;
- YEnd := 0;
- YInc := -1;
- end;
-
- // Read Image
- case Header.ImageType of
- TGA_UNCOMPRESSED_RGB, TGA_UNCOMPRESSED_GRAY:
- ReadUncompressed;
- TGA_COMPRESSED_RGB, TGA_COMPRESSED_GRAY:
- ReadCompressed;
- end;
-
- SetDataPointer(NewImage, Format, Header.Width, Header.Height);
-
- Result := True;
- except
- FreeMem(NewImage);
- raise;
- end;
- end
- else Stream.Position := StreamPos;
- end
- else Stream.Position := StreamPos;
- end;
-
-
- {$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}
-
- procedure TglBitmap.SavePNG(Stream: TStream);
- {$IFDEF GLB_LIB_PNG}
- 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);
-
- // setup header
- png_set_IHDR(png, png_info, Width, Height, 8, ColorType, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-
- // write info
- png_write_info(png, png_info);
-
- // write image data
- png_write_image(png, @png_rows[0]);
-
- // write end
- png_write_end(png, png_info);
-
- // destroy write struct
- png_destroy_write_struct(@png, @png_info);
- finally
- SetLength(png_rows, 0);
- end;
- finally
- quit_libPNG;
- end;
- end;
- {$ENDIF}
- {$IFDEF GLB_PNGIMAGE}
- var
- Png: TPNGObject;
-
- pSource, pDest: pByte;
- X, Y, PixSize: Integer;
- ColorType: Cardinal;
- Alpha: Boolean;
-
- pTemp: pByte;
- Temp: Byte;
- begin
- if not (ftPNG in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- case FInternalFormat of
- ifAlpha, ifLuminance, ifDepth8:
- begin
- ColorType := COLOR_GRAYSCALE;
- PixSize := 1;
- Alpha := False;
- end;
- ifLuminanceAlpha:
- begin
- ColorType := COLOR_GRAYSCALEALPHA;
- PixSize := 1;
- Alpha := True;
- end;
- ifBGR8, ifRGB8:
- begin
- ColorType := COLOR_RGB;
- PixSize := 3;
- Alpha := False;
- end;
- ifBGRA8, ifRGBA8:
- begin
- ColorType := COLOR_RGBALPHA;
- PixSize := 3;
- Alpha := True
- end;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('SavePng - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
-
- Png := TPNGObject.CreateBlank(ColorType, 8, Width, Height);
- try
- // Copy ImageData
- pSource := Data;
- for Y := 0 to Height -1 do begin
- pDest := png.ScanLine[Y];
-
- for X := 0 to Width -1 do begin
- Move(pSource^, pDest^, PixSize);
-
- Inc(pDest, PixSize);
- Inc(pSource, PixSize);
-
- if Alpha then begin
- png.AlphaScanline[Y]^[X] := pSource^;
- Inc(pSource);
- end;
- end;
-
- // convert RGB line to BGR
- if InternalFormat in [ifRGB8, ifRGBA8] then begin
- pTemp := png.ScanLine[Y];
-
- for X := 0 to Width -1 do begin
- Temp := pByteArray(pTemp)^[0];
- pByteArray(pTemp)^[0] := pByteArray(pTemp)^[2];
- pByteArray(pTemp)^[2] := Temp;
-
- Inc(pTemp, 3);
- end;
- end;
- end;
-
- // Save to Stream
- Png.CompressionLevel := 6;
- Png.SaveToStream(Stream);
- finally
- FreeAndNil(Png);
- end;
- end;
- {$ENDIF}
- {$ENDIF}
-
-
- procedure TglBitmap.SaveDDS(Stream: TStream);
- var
- Header: TDDSHeader;
- Pix: TglBitmapPixelData;
- begin
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveDDS - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- if InternalFormat = ifAlpha then
- FormatPreparePixel(Pix, ifLuminance)
- else
- FormatPreparePixel(Pix, InternalFormat);
-
- // Generell
- FillChar(Header, SizeOf(Header), 0);
-
- Header.dwMagic := DDS_MAGIC;
- Header.dwSize := 124;
- Header.dwFlags := DDSD_PITCH or DDSD_CAPS or DDSD_PIXELFORMAT;
-
- if Width > 0 then begin
- Header.dwWidth := Width;
- Header.dwFlags := Header.dwFlags or DDSD_WIDTH;
- end;
-
- if Height > 0 then begin
- Header.dwHeight := Height;
- Header.dwFlags := Header.dwFlags or DDSD_HEIGHT;
- end;
-
- Header.dwPitchOrLinearSize := fRowSize;
- Header.dwMipMapCount := 1;
-
- // Caps
- Header.Caps.dwCaps1 := DDSCAPS_TEXTURE;
-
- // Pixelformat
- Header.PixelFormat.dwSize := Sizeof(Header.PixelFormat);
- Header.PixelFormat.dwFlags := DDPF_RGB;
-
- if FormatHasAlpha(InternalFormat) and (InternalFormat <> ifAlpha)
- then Header.PixelFormat.dwFlags := Header.PixelFormat.dwFlags or DDPF_ALPHAPIXELS;
-
- Header.PixelFormat.dwRGBBitCount := Trunc(FormatGetSize(InternalFormat) * 8);
- Header.PixelFormat.dwRBitMask := Pix.PixelDesc.RedRange shl Pix.PixelDesc.RedShift;
- Header.PixelFormat.dwGBitMask := Pix.PixelDesc.GreenRange shl Pix.PixelDesc.GreenShift;
- Header.PixelFormat.dwBBitMask := Pix.PixelDesc.BlueRange shl Pix.PixelDesc.BlueShift;
- Header.PixelFormat.dwAlphaBitMask := Pix.PixelDesc.AlphaRange shl Pix.PixelDesc.AlphaShift;
-
- // Write
- Stream.Write(Header, SizeOf(Header));
-
- Stream.Write(Data^, FormatGetImageSize(glBitmapPosition(Width, Height), InternalFormat));
- end;
-
-
- procedure TglBitmap.SaveTGA(Stream: TStream);
- var
- Header: TTGAHeader;
- Size: Integer;
- pTemp: pByte;
-
-
- procedure ConvertData(pTemp: pByte);
- var
- Idx, PixelSize: Integer;
- Temp: byte;
- begin
- PixelSize := fPixelSize;
-
- for Idx := 1 to Height * Width do begin
- Temp := pByteArray(pTemp)^[2];
- pByteArray(pTemp)^[2] := pByteArray(pTemp)^[0];
- pByteArray(pTemp)^[0] := Temp;
-
- Inc(pTemp, PixelSize);
- end;
- end;
-
-
- begin
- if not (ftTGA in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveTGA - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- FillChar(Header, SizeOf(Header), 0);
-
- case InternalFormat of
- ifAlpha, ifLuminance, ifDepth8:
- begin
- Header.ImageType := TGA_UNCOMPRESSED_GRAY;
- Header.Bpp := 8;
- end;
- ifLuminanceAlpha:
- begin
- Header.ImageType := TGA_UNCOMPRESSED_GRAY;
- Header.Bpp := 16;
- end;
- ifRGB8, ifBGR8:
- begin
- Header.ImageType := TGA_UNCOMPRESSED_RGB;
- Header.Bpp := 24;
- end;
- ifRGBA8, ifBGRA8:
- begin
- Header.ImageType := TGA_UNCOMPRESSED_RGB;
- Header.Bpp := 32;
- end;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('SaveTGA - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
-
- Header.Width := Width;
- Header.Height := Height;
- Header.ImageDes := $20;
-
- if FormatHasAlpha(InternalFormat) then
- Header.ImageDes := Header.ImageDes or $08;
-
- Stream.Write(Header, SizeOf(Header));
-
- // convert RGB(A) to BGR(A)
- Size := FormatGetImageSize(glBitmapPosition(Width, Height), InternalFormat);
- if InternalFormat in [ifRGB8, ifRGBA8] then begin
- GetMem(pTemp, Size);
- end else
- pTemp := Data;
-
- try
- // convert data
- if InternalFormat in [ifRGB8, ifRGBA8] then begin
- Move(Data^, pTemp^, Size);
- ConvertData(pTemp);
- end;
-
- // write data
- Stream.Write(pTemp^, Size);
- finally
- // free tempdata
- if InternalFormat in [ifRGB8, ifRGBA8] then
- FreeMem(pTemp);
- end;
- end;
-
-
- {$IFDEF GLB_SUPPORT_JPEG_WRITE}
- procedure TglBitmap.SaveJPEG(Stream: TStream);
- {$IFDEF GLB_LIB_JPEG}
- 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(InternalFormat)) 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), $00);
-
- // error managment
- jpeg.err := jpeg_std_error(@jpeg_err);
- jpeg_err.error_exit := glBitmap_libJPEG_error_exit;
- jpeg_err.output_message := glBitmap_libJPEG_output_message;
-
- // compression struct
- jpeg_create_compress(@jpeg);
-
- // allocation space for streaming methods
- jpeg.dest := jpeg.mem^.alloc_small(@jpeg, JPOOL_PERMANENT, SizeOf(glBitmap_libJPEG_dest_mgr));
-
- // seeting up custom functions
- with glBitmap_libJPEG_dest_mgr_ptr(jpeg.dest)^ do begin
- pub.init_destination := glBitmap_libJPEG_init_destination;
- pub.empty_output_buffer := glBitmap_libJPEG_empty_output_buffer;
- pub.term_destination := glBitmap_libJPEG_term_destination;
-
- pub.next_output_byte := @DestBuffer[1];
- pub.free_in_buffer := Length(DestBuffer);
-
- DestStream := Stream;
- end;
-
- // very important state
- jpeg.global_state := CSTATE_START;
-
- jpeg.image_width := Width;
- jpeg.image_height := Height;
- case InternalFormat of
- ifAlpha, ifLuminance, ifDepth8:
- begin
- jpeg.input_components := 1;
- jpeg.in_color_space := JCS_GRAYSCALE;
- end;
- ifRGB8, ifBGR8:
- begin
- jpeg.input_components := 3;
- jpeg.in_color_space := JCS_RGB;
- end;
- end;
-
- // setting defaults
- jpeg_set_defaults(@jpeg);
-
- // compression quality
- jpeg_set_quality(@jpeg, 95, True);
-
- // start compression
- jpeg_start_compress(@jpeg, true);
-
- // write rows
- pTemp := Data;
-
- // initialing row
- if InternalFormat = ifBGR8 then
- GetMem(pTemp2, fRowSize)
- else
- pTemp2 := pTemp;
-
- try
- for Row := 0 to jpeg.image_height -1 do begin
- // prepare row
- if InternalFormat = ifBGR8 then
- CopyRow(pTemp2, pTemp)
- else
- pTemp2 := pTemp;
-
- // write row
- jpeg_write_scanlines(@jpeg, @pTemp2, 1);
- inc(pTemp, fRowSize);
- end;
- finally
- // free memory
- if InternalFormat = ifBGR8 then
- FreeMem(pTemp2);
- end;
-
- // finish compression
- jpeg_finish_compress(@jpeg);
-
- // destroy compression
- jpeg_destroy_compress(@jpeg);
- finally
- quit_libJPEG;
- end;
- end;
- {$ENDIF}
- {$IFDEF GLB_DELPHI_JPEG}
- var
- Bmp: TBitmap;
- Jpg: TJPEGImage;
- begin
- if not (ftJPEG in FormatGetSupportedFiles (InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveJpg - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- Bmp := TBitmap.Create;
- try
- Jpg := TJPEGImage.Create;
- try
- AssignToBitmap(Bmp);
-
- if FInternalFormat in [ifAlpha, ifLuminance, ifDepth8] then begin
- Jpg.Grayscale := True;
- Jpg.PixelFormat := jf8Bit;
- end;
-
- Jpg.Assign(Bmp);
-
- Jpg.SaveToStream(Stream);
- finally
- FreeAndNil(Jpg);
- end;
- finally
- FreeAndNil(Bmp);
- end;
- end;
- {$ENDIF}
- {$ENDIF}
-
-
- procedure TglBitmap.SaveBMP(Stream: TStream);
- var
- Header: TBMPHeader;
- Info: TBMPInfo;
- pData, pTemp: pByte;
-
- PixelFormat: TglBitmapPixelData;
- ImageSize, LineSize, Padding, LineIdx, ColorIdx: Integer;
- Temp, 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(InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('SaveBMP - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- ImageSize := Trunc(Width * Height * FormatGetSize(InternalFormat));
-
- 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, SizeOf(Info), 0);
- Info.biSize := SizeOf(Info);
- Info.biWidth := Width;
- Info.biHeight := Height;
- Info.biPlanes := 1;
- Info.biCompression := BMP_COMP_RGB;
- Info.biSizeImage := ImageSize;
- case InternalFormat of
- ifAlpha, ifLuminance, ifDepth8:
- begin
- Info.biBitCount := 8;
-
- Header.bfSize := Header.bfSize + 256 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 256 * SizeOf(Cardinal);
-
- Info.biClrUsed := 256;
- Info.biClrImportant := 256;
- end;
- ifLuminanceAlpha, ifRGBA4, ifR5G6B5, ifRGB5A1:
- begin
- Info.biBitCount := 16;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
- ifBGR8, ifRGB8:
- Info.biBitCount := 24;
- ifBGRA8, ifRGBA8, ifRGB10A2:
- begin
- Info.biBitCount := 32;
- Info.biCompression := BMP_COMP_BITFIELDS;
- end;
- else
- raise EglBitmapUnsupportedInternalFormat.Create('SaveBMP - ' + UNSUPPORTED_INTERNAL_FORMAT);
- end;
- Info.biXPelsPerMeter := 2835;
- Info.biYPelsPerMeter := 2835;
-
- // prepare bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- Info.biSize := Info.biSize + 4 * SizeOf(Cardinal);
- Header.bfSize := Header.bfSize + 4 * SizeOf(Cardinal);
- Header.bfOffBits := Header.bfOffBits + 4 * SizeOf(Cardinal);
-
- FormatPreparePixel(PixelFormat, InternalFormat);
-
- with PixelFormat.PixelDesc do begin
- RedMask := RedRange shl RedShift;
- GreenMask := GreenRange shl GreenShift;
- BlueMask := BlueRange shl BlueShift;
- AlphaMask := AlphaRange shl AlphaShift;
- end;
- end;
-
- // headers
- Stream.Write(Header, SizeOf(Header));
- Stream.Write(Info, SizeOf(Info));
-
- // colortable
- if Info.biBitCount = 8 then begin
- Temp := 0;
- for ColorIdx := Low(Byte) to High(Byte) do begin
- Stream.Write(Temp, 4);
- Temp := Temp + $00010101;
- end;
- end;
-
- // bitmasks
- if Info.biCompression = BMP_COMP_BITFIELDS then begin
- Stream.Write(RedMask, SizeOf(Cardinal));
- Stream.Write(GreenMask, SizeOf(Cardinal));
- Stream.Write(BlueMask, SizeOf(Cardinal));
- Stream.Write(AlphaMask, SizeOf(Cardinal));
- end;
-
- // image data
- LineSize := Trunc(Width * FormatGetSize(InternalFormat));
- Padding := GetLineWidth - LineSize;
- PaddingBuff := 0;
-
- pData := Data;
- Inc(pData, (Height -1) * LineSize);
-
- // prepare row buffer. But only for RGB because RGBA supports color masks
- // so it's possible to change color within the image.
- if InternalFormat = ifRGB8 then
- GetMem(pTemp, fRowSize)
- else
- pTemp := nil;
-
- try
- // write image data
- for LineIdx := 0 to Height - 1 do begin
- // preparing row
- if InternalFormat = ifRGB8 then begin
- Move(pData^, pTemp^, fRowSize);
- SwapRGB(pTemp, Width, False);
- end else
- pTemp := pData;
-
- Stream.Write(pTemp^, LineSize);
-
- Dec(pData, LineSize);
-
- if Padding > 0 then
- Stream.Write(PaddingBuff, Padding);
- end;
- finally
- // destroy row buffer
- if InternalFormat = ifRGB8 then
- FreeMem(pTemp);
- end;
- end;
-
-
- procedure TglBitmap.Bind(EnableTextureUnit: Boolean);
- begin
- if EnableTextureUnit then
- glEnable(Target);
-
- if ID > 0 then
- glBindTexture(Target, ID);
- end;
-
-
- procedure TglBitmap.Unbind(DisableTextureUnit: Boolean);
- begin
- if DisableTextureUnit then
- glDisable(Target);
-
- glBindTexture(Target, 0);
- end;
-
-
- procedure TglBitmap.GetPixel(const Pos: TglBitmapPixelPosition;
- var Pixel: TglBitmapPixelData);
- begin
- if Assigned (fGetPixelFunc) then
- fGetPixelFunc(Pos, Pixel);
- end;
-
-
- procedure TglBitmap.SetPixel (const Pos: TglBitmapPixelPosition;
- const Pixel: TglBitmapPixelData);
- begin
- if Assigned (fSetPixelFunc) then
- fSetPixelFunc(Pos, Pixel);
- end;
-
-
- procedure TglBitmap.CreateID;
- begin
- // Generate Texture
- if ID <> 0 then
- glDeleteTextures(1, @ID);
-
- glGenTextures(1, @ID);
-
- Bind(False);
- end;
-
-
- procedure TglBitmap.SetupParameters(var BuildWithGlu: 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
- BuildWithGlu := 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
- BuildWithGlu := True;
- end else
- if (MipMap = mmMipmapGlu) then
- BuildWithGlu := True;
- end;
-
-
- procedure TglBitmap.SelectFormat(DataFormat: TglBitmapInternalFormat; var glFormat, glInternalFormat, glType: Cardinal; CanConvertImage: Boolean = True);
-
- procedure Check12;
- begin
- if not GL_VERSION_1_2 then
- raise EglBitmapUnsupportedInternalFormat.Create('SelectFormat - You need at least OpenGL 1.2 to support these format.');
- end;
-
- begin
- glType := GL_UNSIGNED_BYTE;
-
- // selecting Format
- case DataFormat of
- ifAlpha:
- glFormat := GL_ALPHA;
- ifLuminance:
- glFormat := GL_LUMINANCE;
- ifDepth8:
- glFormat := GL_DEPTH_COMPONENT;
- ifLuminanceAlpha:
- glFormat := GL_LUMINANCE_ALPHA;
- ifBGR8:
- begin
- if (GL_VERSION_1_2 or GL_EXT_bgra) then begin
- glFormat := GL_BGR;
- end else begin
- if CanConvertImage then
- ConvertTo(ifRGB8);
- glFormat := GL_RGB;
- end;
- end;
- ifBGRA8:
- begin
- if (GL_VERSION_1_2 or GL_EXT_bgra) then begin
- glFormat := GL_BGRA;
- end else begin
- if CanConvertImage then
- ConvertTo(ifRGBA8);
- glFormat := GL_RGBA;
- end;
- end;
- ifRGB8:
- glFormat := GL_RGB;
- ifRGBA8:
- glFormat := GL_RGBA;
- ifRGBA4:
- begin
- Check12;
- glFormat := GL_BGRA;
- glType := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end;
- ifRGB5A1:
- begin
- Check12;
- glFormat := GL_BGRA;
- glType := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end;
- ifRGB10A2:
- begin
- Check12;
- glFormat := GL_BGRA;
- glType := GL_UNSIGNED_INT_2_10_10_10_REV;
- end;
- ifR5G6B5:
- begin
- Check12;
- glFormat := GL_RGB;
- glType := GL_UNSIGNED_SHORT_5_6_5;
- end;
- else
- glFormat := 0;
- end;
-
- // Selecting InternalFormat
- case DataFormat of
- ifDXT1, ifDXT3, ifDXT5:
- begin
- if GL_EXT_texture_compression_s3tc then begin
- case DataFormat of
- ifDXT1:
- glInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
- ifDXT3:
- glInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
- ifDXT5:
- glInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
- end;
- end else begin
- // Compression isn't supported so convert to RGBA
- if CanConvertImage then
- ConvertTo(ifRGBA8);
- glFormat := GL_RGBA;
- glInternalFormat := GL_RGBA8;
- end;
- end;
- ifAlpha:
- begin
- case Format of
- tf4BitsPerChanel:
- glInternalFormat := GL_ALPHA4;
- tf8BitsPerChanel:
- glInternalFormat := GL_ALPHA8;
- tfCompressed:
- begin
- if (GL_ARB_texture_compression or GL_VERSION_1_3) then
- glInternalFormat := GL_COMPRESSED_ALPHA
- else
- glInternalFormat := GL_ALPHA;
- end;
- else
- glInternalFormat := GL_ALPHA;
- end;
- end;
- ifLuminance:
- begin
- case Format of
- tf4BitsPerChanel:
- glInternalFormat := GL_LUMINANCE4;
- tf8BitsPerChanel:
- glInternalFormat := GL_LUMINANCE8;
- tfCompressed:
- begin
- if (GL_ARB_texture_compression or GL_VERSION_1_3) then
- glInternalFormat := GL_COMPRESSED_LUMINANCE
- else
- glInternalFormat := GL_LUMINANCE;
- end;
- else
- glInternalFormat := GL_LUMINANCE;
- end;
- end;
- ifDepth8:
- begin
- glInternalFormat := GL_DEPTH_COMPONENT;
- end;
- ifLuminanceAlpha:
- begin
- case Format of
- tf4BitsPerChanel:
- glInternalFormat := GL_LUMINANCE4_ALPHA4;
- tf8BitsPerChanel:
- glInternalFormat := GL_LUMINANCE8_ALPHA8;
- tfCompressed:
- begin
- if (GL_ARB_texture_compression or GL_VERSION_1_3) then
- glInternalFormat := GL_COMPRESSED_LUMINANCE_ALPHA
- else
- glInternalFormat := GL_LUMINANCE_ALPHA;
- end;
- else
- glInternalFormat := GL_LUMINANCE_ALPHA;
- end;
- end;
- ifBGR8, ifRGB8:
- begin
- case Format of
- tf4BitsPerChanel:
- glInternalFormat := GL_RGB4;
- tf8BitsPerChanel:
- glInternalFormat := GL_RGB8;
- tfCompressed:
- begin
- if (GL_ARB_texture_compression or GL_VERSION_1_3) then begin
- glInternalFormat := GL_COMPRESSED_RGB
- end else begin
- if (GL_EXT_texture_compression_s3tc) then
- glInternalFormat := GL_COMPRESSED_RGB_S3TC_DXT1_EXT
- else
- glInternalFormat := GL_RGB;
- end;
- end;
- else
- glInternalFormat := GL_RGB;
- end;
- end;
- ifBGRA8, ifRGBA8, ifRGBA4, ifRGB5A1, ifRGB10A2, ifR5G6B5:
- begin
- case Format of
- tf4BitsPerChanel:
- glInternalFormat := GL_RGBA4;
- tf8BitsPerChanel:
- glInternalFormat := GL_RGBA8;
- tfCompressed:
- begin
- if (GL_ARB_texture_compression or GL_VERSION_1_3) then begin
- glInternalFormat := GL_COMPRESSED_RGBA
- end else begin
- if (GL_EXT_texture_compression_s3tc) then
- glInternalFormat := GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
- else
- glInternalFormat := GL_RGBA;
- end;
- end;
- else
- glInternalFormat := GL_RGBA;
- end;
- end;
- end;
- end;
-
-
- function TglBitmap.FlipHorz: Boolean;
- begin
- Result := False;
- end;
-
-
- function TglBitmap.FlipVert: Boolean;
- begin
- Result := False;
- end;
-
-
- procedure TglBitmap.FreeData;
- begin
- SetDataPointer(nil, ifEmpty);
- end;
-
-
- procedure glBitmapFillWithColorFunc(var FuncRec: TglBitmapFunctionRec);
- type
- PglBitmapPixelData = ^TglBitmapPixelData;
- begin
- with FuncRec do begin
- Dest.Red := PglBitmapPixelData(CustomData)^.Red;
- Dest.Green := PglBitmapPixelData(CustomData)^.Green;
- Dest.Blue := PglBitmapPixelData(CustomData)^.Blue;
- Dest.Alpha := PglBitmapPixelData(CustomData)^.Alpha;
- end;
- end;
-
-
- procedure TglBitmap.FillWithColor(Red, Green, Blue: Byte; Alpha: Byte);
- begin
- FillWithColorFloat(Red / $FF, Green / $FF, Blue / $FF, Alpha / $FF);
- end;
-
-
- procedure TglBitmap.FillWithColorFloat(Red, Green, Blue: Single; Alpha: Single);
- var
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, InternalFormat);
-
- PixelData.Red := Max(0, Min(PixelData.PixelDesc.RedRange, Trunc(PixelData.PixelDesc.RedRange * Red)));
- PixelData.Green := Max(0, Min(PixelData.PixelDesc.GreenRange, Trunc(PixelData.PixelDesc.GreenRange * Green)));
- PixelData.Blue := Max(0, Min(PixelData.PixelDesc.BlueRange, Trunc(PixelData.PixelDesc.BlueRange * Blue)));
- PixelData.Alpha := Max(0, Min(PixelData.PixelDesc.AlphaRange, Trunc(PixelData.PixelDesc.AlphaRange * Alpha)));
-
- AddFunc(glBitmapFillWithColorFunc, False, @PixelData);
- end;
-
-
- procedure TglBitmap.FillWithColorRange(Red, Green, Blue: Cardinal;
- Alpha: Cardinal);
- var
- PixelData: TglBitmapPixelData;
- begin
- FormatPreparePixel(PixelData, FormatGetWithAlpha(InternalFormat));
-
- FillWithColorFloat(
- Red / PixelData.PixelDesc.RedRange,
- Green / PixelData.PixelDesc.GreenRange,
- Blue / PixelData.PixelDesc.BlueRange,
- Alpha / PixelData.PixelDesc.AlphaRange);
- end;
-
-
- procedure TglBitmap.SetAnisotropic(const aValue: Integer);
- var
- MaxAniso: Integer;
- begin
- fAnisotropic := Value;
-
- 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, @MaxAniso);
-
- if Value > MaxAniso then
- fAnisotropic := MaxAniso;
-
- glTexParameteri(Target, GL_TEXTURE_MAX_ANISOTROPY_EXT, fAnisotropic);
- end;
- end else begin
- fAnisotropic := 0;
- end;
- end;
- end;
-
-
- procedure TglBitmap.SetInternalFormat(const aValue: TglBitmapInternalFormat);
- begin
- if InternalFormat <> Value then begin
- if FormatGetSize(Value) <> FormatGetSize(InternalFormat) then
- raise EglBitmapUnsupportedInternalFormat.Create('SetInternalFormat - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- // Update whatever
- SetDataPointer(Data, Value);
- end;
- end;
-
-
- function TglBitmap.AddFunc(Func: TglBitmapFunction; CreateTemp: Boolean;
- CustomData: Pointer): boolean;
- begin
- Result := AddFunc(Self, Func, CreateTemp, InternalFormat, CustomData);
- end;
-
-
- function TglBitmap.AddFunc(Source: TglBitmap; Func: TglBitmapFunction;
- CreateTemp: Boolean; Format: TglBitmapInternalFormat; CustomData: Pointer): boolean;
- var
- pDest, NewImage, pSource: pByte;
- TempHeight, TempWidth: Integer;
- MapFunc: TglBitmapMapFunc;
- UnMapFunc: TglBitmapUnMapFunc;
-
- FuncRec: TglBitmapFunctionRec;
- begin
- Assert(Assigned(Data));
- Assert(Assigned(Source));
- Assert(Assigned(Source.Data));
-
- Result := False;
-
- if Assigned (Source.Data) and FormatIsUncompressed(Format) and
- ((Source.Height > 0) or (Source.Width > 0)) then begin
-
- // inkompatible Formats so CreateTemp
- if FormatGetSize(Format) <> FormatGetSize(InternalFormat) then
- CreateTemp := True;
-
- // Values
- TempHeight := Max(1, Source.Height);
- TempWidth := Max(1, Source.Width);
-
- FuncRec.Sender := Self;
- FuncRec.CustomData := CustomData;
-
- NewImage := nil;
-
- if CreateTemp then begin
- GetMem(NewImage, Trunc(FormatGetSize(Format) * TempHeight * TempWidth));
- pDest := NewImage;
- end
- else pDest := Data;
-
- try
- // Mapping
- MapFunc := FormatGetMapFunc(Format);
- FormatPreparePixel(FuncRec.Dest, Format);
- FormatPreparePixel(FuncRec.Source, Source.InternalFormat);
-
- FuncRec.Size := Source.Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- if FormatIsUncompressed(Source.InternalFormat) then begin
- // Uncompressed Images
- pSource := Source.Data;
- UnMapFunc := FormatGetUnMapFunc(Source.InternalFormat);
-
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- // Get Data
- UnMapFunc(pSource, FuncRec.Source);
- // Func
- Func(FuncRec);
- // Set Data
- MapFunc(FuncRec.Dest, pDest);
- Inc(FuncRec.Position.X);
- end;
- Inc(FuncRec.Position.Y);
- end;
- end else begin
- // Compressed Images
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- // Get Data
- fGetPixelFunc(FuncRec.Position, FuncRec.Source);
- // Func
- Func(FuncRec);
- // Set Data
- MapFunc(FuncRec.Dest, pDest);
- Inc(FuncRec.Position.X);
- end;
- Inc(FuncRec.Position.Y);
- end;
- end;
-
- // Updating Image or InternalFormat
- if CreateTemp then
- SetDataPointer(NewImage, Format)
- else
-
- if Format <> InternalFormat then
- SetInternalFormat(Format);
-
- Result := True;
- except
- if CreateTemp
- then FreeMem(NewImage);
- raise;
- end;
- end;
- end;
-
-
- procedure glBitmapConvertCopyFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- if Source.PixelDesc.RedRange > 0 then
- Dest.Red := Source.Red;
-
- if Source.PixelDesc.GreenRange > 0 then
- Dest.Green := Source.Green;
-
- if Source.PixelDesc.BlueRange > 0 then
- Dest.Blue := Source.Blue;
-
- if Source.PixelDesc.AlphaRange > 0 then
- Dest.Alpha := Source.Alpha;
- end;
- end;
-
-
- procedure glBitmapConvertCalculateRGBAFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do begin
- if Source.PixelDesc.RedRange > 0 then
- Dest.Red := Round(Dest.PixelDesc.RedRange * Source.Red / Source.PixelDesc.RedRange);
-
- if Source.PixelDesc.GreenRange > 0 then
- Dest.Green := Round(Dest.PixelDesc.GreenRange * Source.Green / Source.PixelDesc.GreenRange);
-
- if Source.PixelDesc.BlueRange > 0 then
- Dest.Blue := Round(Dest.PixelDesc.BlueRange * Source.Blue / Source.PixelDesc.BlueRange);
-
- if Source.PixelDesc.AlphaRange > 0 then
- Dest.Alpha := Round(Dest.PixelDesc.AlphaRange * Source.Alpha / Source.PixelDesc.AlphaRange);
- end;
- end;
-
-
- procedure glBitmapConvertShiftRGBAFunc(var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do
- with TglBitmapPixelDesc(CustomData^) do begin
- if Source.PixelDesc.RedRange > 0 then
- Dest.Red := Source.Red shr RedShift;
-
- if Source.PixelDesc.GreenRange > 0 then
- Dest.Green := Source.Green shr GreenShift;
-
- if Source.PixelDesc.BlueRange > 0 then
- Dest.Blue := Source.Blue shr BlueShift;
-
- if Source.PixelDesc.AlphaRange > 0 then
- Dest.Alpha := Source.Alpha shr AlphaShift;
- end;
- end;
-
-
- function TglBitmap.ConvertTo(NewFormat: TglBitmapInternalFormat): boolean;
- var
- Source, Dest: TglBitmapPixelData;
- PixelDesc: TglBitmapPixelDesc;
-
- function CopyDirect: Boolean;
- begin
- Result :=
- ((Source.PixelDesc.RedRange = Dest.PixelDesc.RedRange) or (Source.PixelDesc.RedRange = 0) or (Dest.PixelDesc.RedRange = 0)) and
- ((Source.PixelDesc.GreenRange = Dest.PixelDesc.GreenRange) or (Source.PixelDesc.GreenRange = 0) or (Dest.PixelDesc.GreenRange = 0)) and
- ((Source.PixelDesc.BlueRange = Dest.PixelDesc.BlueRange) or (Source.PixelDesc.BlueRange = 0) or (Dest.PixelDesc.BlueRange = 0)) and
- ((Source.PixelDesc.AlphaRange = Dest.PixelDesc.AlphaRange) or (Source.PixelDesc.AlphaRange = 0) or (Dest.PixelDesc.AlphaRange = 0));
- end;
-
- function CanShift: Boolean;
- begin
- Result :=
- ((Source.PixelDesc.RedRange >= Dest.PixelDesc.RedRange ) or (Source.PixelDesc.RedRange = 0) or (Dest.PixelDesc.RedRange = 0)) and
- ((Source.PixelDesc.GreenRange >= Dest.PixelDesc.GreenRange) or (Source.PixelDesc.GreenRange = 0) or (Dest.PixelDesc.GreenRange = 0)) and
- ((Source.PixelDesc.BlueRange >= Dest.PixelDesc.BlueRange ) or (Source.PixelDesc.BlueRange = 0) or (Dest.PixelDesc.BlueRange = 0)) and
- ((Source.PixelDesc.AlphaRange >= Dest.PixelDesc.AlphaRange) or (Source.PixelDesc.AlphaRange = 0) or (Dest.PixelDesc.AlphaRange = 0));
- end;
-
- function GetShift(Source, Dest: Cardinal) : ShortInt;
- begin
- Result := 0;
-
- while (Source > Dest) and (Source > 0) do begin
- Inc(Result);
- Source := Source shr 1;
- end;
- end;
-
- begin
- if NewFormat <> InternalFormat then begin
- FormatPreparePixel(Source, InternalFormat);
- FormatPreparePixel(Dest, NewFormat);
-
- if CopyDirect then
- Result := AddFunc(Self, glBitmapConvertCopyFunc, False, NewFormat)
- else
- if CanShift then begin
- PixelDesc.RedShift := GetShift(Source.PixelDesc.RedRange, Dest.PixelDesc.RedRange);
- PixelDesc.GreenShift := GetShift(Source.PixelDesc.GreenRange, Dest.PixelDesc.GreenRange);
- PixelDesc.BlueShift := GetShift(Source.PixelDesc.BlueRange, Dest.PixelDesc.BlueRange);
- PixelDesc.AlphaShift := GetShift(Source.PixelDesc.AlphaRange, Dest.PixelDesc.AlphaRange);
-
- Result := AddFunc(Self, glBitmapConvertShiftRGBAFunc, False, NewFormat, @PixelDesc);
- end
- else Result := AddFunc(Self, glBitmapConvertCalculateRGBAFunc, False, NewFormat);
- end
- else Result := True;
- end;
-
-
- function TglBitmap.RemoveAlpha: Boolean;
- begin
- Result := False;
-
- if (Assigned(Data)) then begin
- if not (FormatIsUncompressed(InternalFormat) or FormatHasAlpha(InternalFormat)) then
- raise EglBitmapUnsupportedInternalFormat.Create('RemoveAlpha - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- Result := ConvertTo(FormatGetWithoutAlpha(InternalFormat));
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromFunc(Func: TglBitmapFunction; CustomData: Pointer): boolean;
- begin
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedInternalFormat.Create('AddAlphaFromFunc - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- Result := AddFunc(Self, Func, False, FormatGetWithAlpha(InternalFormat), CustomData);
- end;
-
-
- function TglBitmap.GetHeight: Integer;
- begin
- if ffY in fDimension.Fields then
- Result := fDimension.Y
- else
- Result := -1;
- end;
-
-
- function TglBitmap.GetWidth: Integer;
- begin
- if ffX in fDimension.Fields then
- Result := fDimension.X
- else
- Result := -1;
- end;
-
-
- function TglBitmap.GetFileHeight: Integer;
- begin
- Result := Max(1, Height);
- end;
-
-
- function TglBitmap.GetFileWidth: Integer;
- begin
- Result := Max(1, Width);
- end;
-
-
- procedure glBitmapAlphaFunc(var FuncRec: TglBitmapFunctionRec);
- var
- Temp: Single;
- begin
- with FuncRec do begin
- Temp :=
- Source.Red / Source.PixelDesc.RedRange * 0.3 +
- Source.Green / Source.PixelDesc.GreenRange * 0.59 +
- Source.Blue / Source.PixelDesc.BlueRange * 0.11;
-
- Dest.Alpha := Round (Dest.PixelDesc.AlphaRange * Temp);
- end;
- end;
-
-
- function TglBitmap.AddAlphaFromglBitmap(glBitmap: TglBitmap; Func: TglBitmapFunction; CustomData: Pointer): boolean;
- var
- pDest, pDest2, pSource: pByte;
- TempHeight, TempWidth: Integer;
- MapFunc: TglBitmapMapFunc;
- DestUnMapFunc, UnMapFunc: TglBitmapUnMapFunc;
-
- FuncRec: TglBitmapFunctionRec;
- begin
- Result := False;
-
- assert(Assigned(Data));
- assert(Assigned(glBitmap));
- assert(Assigned(glBitmap.Data));
-
- if ((glBitmap.Width = Width) and (glBitmap.Height = Height)) then begin
- // Convert to Data with Alpha
- Result := ConvertTo(FormatGetWithAlpha(FormatGetUncompressed(InternalFormat)));
-
- if not Assigned(Func) then
- Func := glBitmapAlphaFunc;
-
- // Values
- TempHeight := glBitmap.FileHeight;
- TempWidth := glBitmap.FileWidth;
-
- FuncRec.Sender := Self;
- FuncRec.CustomData := CustomData;
-
- pDest := Data;
- pDest2 := Data;
- pSource := glBitmap.Data;
-
- // Mapping
- FormatPreparePixel(FuncRec.Dest, InternalFormat);
- FormatPreparePixel(FuncRec.Source, glBitmap.InternalFormat);
- MapFunc := FormatGetMapFunc(InternalFormat);
- DestUnMapFunc := FormatGetUnMapFunc(InternalFormat);
- UnMapFunc := FormatGetUnMapFunc(glBitmap.InternalFormat);
-
- FuncRec.Size := Dimension;
- FuncRec.Position.Fields := FuncRec.Size.Fields;
-
- FuncRec.Position.Y := 0;
- while FuncRec.Position.Y < TempHeight do begin
- FuncRec.Position.X := 0;
- while FuncRec.Position.X < TempWidth do begin
- // Get Data
- UnMapFunc(pSource, FuncRec.Source);
- DestUnMapFunc(pDest2, FuncRec.Dest);
- // Func
- Func(FuncRec);
- // Set Data
- MapFunc(FuncRec.Dest, pDest);
- Inc(FuncRec.Position.X);
- end;
- Inc(FuncRec.Position.Y);
- end;
- end;
- end;
-
-
- procedure TglBitmap.SetBorderColor(Red, Green, Blue, Alpha: Single);
- begin
- fBorderColor[0] := Red;
- fBorderColor[1] := Green;
- fBorderColor[2] := Blue;
- fBorderColor[3] := Alpha;
-
- if ID > 0 then begin
- Bind (False);
-
- glTexParameterfv(Target, GL_TEXTURE_BORDER_COLOR, @fBorderColor[0]);
- end;
- end;
-
-
- { TglBitmap2D }
-
- procedure TglBitmap2D.SetDataPointer(Data: pByte; Format: TglBitmapInternalFormat; Width, Height: Integer);
- var
- Idx, LineWidth: Integer;
- begin
- inherited;
-
- // Format
- if FormatIsUncompressed(Format) then begin
- fUnmapFunc := FormatGetUnMapFunc(Format);
- fGetPixelFunc := GetPixel2DUnmap;
-
- fMapFunc := FormatGetMapFunc(Format);
- fSetPixelFunc := SetPixel2DUnmap;
-
- // Assigning Data
- if Assigned(Data) then begin
- SetLength(fLines, GetHeight);
-
- LineWidth := Trunc(GetWidth * FormatGetSize(InternalFormat));
-
- 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.GetDXTColorBlock(pData: pByte; relX, relY: Integer; var Pixel: TglBitmapPixelData);
- type
- PDXT1Chunk = ^TDXT1Chunk;
- TDXT1Chunk = packed record
- Color1: WORD;
- Color2: WORD;
- Pixels: array [0..3] of byte;
- end;
-
- var
- BasePtr: pDXT1Chunk;
- PixPos: Integer;
- Colors: array [0..3] of TRGBQuad;
- begin
- BasePtr := pDXT1Chunk(pData);
-
- PixPos := BasePtr^.Pixels[relY] shr (relX * 2) and $3;
-
- if PixPos in [0, 2, 3] then begin
- Colors[0].rgbRed := BasePtr^.Color1 and $F800 shr 8;
- Colors[0].rgbGreen := BasePtr^.Color1 and $07E0 shr 3;
- Colors[0].rgbBlue := BasePtr^.Color1 and $001F shl 3;
- Colors[0].rgbReserved := 255;
- end;
-
- if PixPos in [1, 2, 3] then begin
- Colors[1].rgbRed := BasePtr^.Color2 and $F800 shr 8;
- Colors[1].rgbGreen := BasePtr^.Color2 and $07E0 shr 3;
- Colors[1].rgbBlue := BasePtr^.Color2 and $001F shl 3;
- Colors[1].rgbReserved := 255;
- end;
-
- if PixPos = 2 then begin
- Colors[2].rgbRed := (Colors[0].rgbRed * 67 + Colors[1].rgbRed * 33) div 100;
- Colors[2].rgbGreen := (Colors[0].rgbGreen * 67 + Colors[1].rgbGreen * 33) div 100;
- Colors[2].rgbBlue := (Colors[0].rgbBlue * 67 + Colors[1].rgbBlue * 33) div 100;
- Colors[2].rgbReserved := 255;
- end;
-
- if PixPos = 3 then begin
- Colors[3].rgbRed := (Colors[0].rgbRed * 33 + Colors[1].rgbRed * 67) div 100;
- Colors[3].rgbGreen := (Colors[0].rgbGreen * 33 + Colors[1].rgbGreen * 67) div 100;
- Colors[3].rgbBlue := (Colors[0].rgbBlue * 33 + Colors[1].rgbBlue * 67) div 100;
- if BasePtr^.Color1 > BasePtr^.Color2 then
- Colors[3].rgbReserved := 255
- else
- Colors[3].rgbReserved := 0;
- end;
-
- Pixel.Red := Colors[PixPos].rgbRed;
- Pixel.Green := Colors[PixPos].rgbGreen;
- Pixel.Blue := Colors[PixPos].rgbBlue;
- Pixel.Alpha := Colors[PixPos].rgbReserved;
- end;
-
-
- procedure TglBitmap2D.GetPixel2DDXT1(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- var
- BasePtr: pByte;
- PosX, PosY: Integer;
- begin
- inherited;
-
- if (Pos.Y <= Height) and (Pos.X <= Width) then begin
- PosX := Pos.X div 4;
- PosY := Pos.Y div 4;
-
- BasePtr := Data;
- Inc(BasePtr, (PosY * Width div 4 + PosX) * 8);
-
- GetDXTColorBlock(BasePtr, Pos.X - PosX * 4, Pos.Y - PosY * 4, Pixel);
- end;
- end;
-
-
- procedure TglBitmap2D.GetPixel2DDXT3(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- type
- PDXT3AlphaChunk = ^TDXT3AlphaChunk;
- TDXT3AlphaChunk = array [0..3] of WORD;
-
- var
- ColorPtr: pByte;
- AlphaPtr: PDXT3AlphaChunk;
- PosX, PosY, relX, relY: Integer;
- begin
- inherited;
-
- if (Pos.Y <= Height) and (Pos.X <= Width) then begin
- PosX := Pos.X div 4;
- PosY := Pos.Y div 4;
- relX := Pos.X - PosX * 4;
- relY := Pos.Y - PosY * 4;
-
- // get color value
- AlphaPtr := PDXT3AlphaChunk(Data);
- Inc(AlphaPtr, (PosY * Width div 4 + PosX) * 2);
-
- ColorPtr := pByte(AlphaPtr);
- Inc(ColorPtr, 8);
-
- GetDXTColorBlock(ColorPtr, relX, relY, Pixel);
-
- // extracting alpha
- Pixel.Alpha := AlphaPtr^[relY] shr (4 * relX) and $0F shl 4;
- end;
- end;
-
-
- procedure TglBitmap2D.GetPixel2DDXT5(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- var
- ColorPtr: pByte;
- AlphaPtr: PInt64;
- PixPos, PosX, PosY, relX, relY: Integer;
- Alpha0, Alpha1: Byte;
- begin
- inherited;
-
- if (Pos.Y <= Height) and (Pos.X <= Width) then begin
- PosX := Pos.X div 4;
- PosY := Pos.Y div 4;
- relX := Pos.X - PosX * 4;
- relY := Pos.Y - PosY * 4;
-
- // get color value
- AlphaPtr := PInt64(Data);
- Inc(AlphaPtr, (PosY * Width div 4 + PosX) * 2);
-
- ColorPtr := pByte(AlphaPtr);
- Inc(ColorPtr, 8);
-
- GetDXTColorBlock(ColorPtr, relX, relY, Pixel);
-
- // extracting alpha
- Alpha0 := AlphaPtr^ and $FF;
- Alpha1 := AlphaPtr^ shr 8 and $FF;
-
- PixPos := AlphaPtr^ shr (16 + (relY * 4 + relX) * 3) and $07;
-
- // use alpha 0
- if PixPos = 0 then begin
- Pixel.Alpha := Alpha0;
- end else
-
- // use alpha 1
- if PixPos = 1 then begin
- Pixel.Alpha := Alpha1;
- end else
-
- // alpha interpolate 7 Steps
- if Alpha0 > Alpha1 then begin
- Pixel.Alpha := ((8 - PixPos) * Alpha0 + (PixPos - 1) * Alpha1) div 7;
- end else
-
- // alpha is 100% transparent or not transparent
- if PixPos >= 6 then begin
- if PixPos = 6 then
- Pixel.Alpha := 0
- else
- Pixel.Alpha := 255;
- end else
-
- // alpha interpolate 5 Steps
- begin
- Pixel.Alpha := ((6 - PixPos) * Alpha0 + (PixPos - 1) * Alpha1) div 5;
- end;
- end;
- end;
-
-
- procedure TglBitmap2D.GetPixel2DUnmap(const Pos: TglBitmapPixelPosition; var Pixel: TglBitmapPixelData);
- var
- pTemp: pByte;
- begin
- pTemp := fLines[Pos.Y];
- Inc(pTemp, Pos.X * fPixelSize);
-
- fUnmapFunc(pTemp, Pixel);
- end;
-
-
- procedure TglBitmap2D.SetPixel2DUnmap(const Pos: TglBitmapPixelPosition; const Pixel: TglBitmapPixelData);
- var
- pTemp: pByte;
- begin
- pTemp := fLines[Pos.Y];
- Inc(pTemp, Pos.X * fPixelSize);
-
- fMapFunc(Pixel, pTemp);
- end;
-
-
- function TglBitmap2D.FlipHorz: Boolean;
- var
- Col, Row: Integer;
- pTempDest, pDest, pSource: pByte;
- ImgSize: Integer;
- begin
- Result := Inherited FlipHorz;
-
- if Assigned(Data) then begin
- pSource := Data;
- ImgSize := Height * fRowSize;
-
- GetMem(pDest, ImgSize);
- try
- pTempDest := pDest;
-
- Dec(pTempDest, fRowSize + fPixelSize);
- for Row := 0 to Height -1 do begin
- Inc(pTempDest, fRowSize * 2);
- for Col := 0 to Width -1 do begin
- Move(pSource^, pTempDest^, fPixelSize);
-
- Inc(pSource, fPixelSize);
- Dec(pTempDest, fPixelSize);
- end;
- end;
-
- SetDataPointer(pDest, InternalFormat);
-
- Result := True;
- except
- FreeMem(pDest);
- raise;
- end;
- end;
- end;
-
-
- function TglBitmap2D.FlipVert: Boolean;
- var
- Row: Integer;
- pTempDest, pDest, pSource: pByte;
- begin
- Result := Inherited FlipVert;
-
- if Assigned(Data) then begin
- pSource := Data;
- GetMem(pDest, Height * fRowSize);
- try
- pTempDest := pDest;
-
- Inc(pTempDest, Width * (Height -1) * fPixelSize);
-
- for Row := 0 to Height -1 do begin
- Move(pSource^, pTempDest^, fRowSize);
-
- Dec(pTempDest, fRowSize);
- Inc(pSource, fRowSize);
- end;
-
- SetDataPointer(pDest, InternalFormat);
-
- Result := True;
- except
- FreeMem(pDest);
- raise;
- end;
- end;
- end;
-
-
- procedure TglBitmap2D.UploadData (Target, Format, InternalFormat, Typ: Cardinal; BuildWithGlu: Boolean);
- begin
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- // Upload data
- if Self.InternalFormat in [ifDXT1, ifDXT3, ifDXT5] then
- glCompressedTexImage2D(Target, 0, InternalFormat, Width, Height, 0, Trunc(Width * Height * FormatGetSize(Self.InternalFormat)), Data)
- else
-
- if BuildWithGlu then
- gluBuild2DMipmaps(Target, InternalFormat, Width, Height, Format, Typ, Data)
- else
- glTexImage2D(Target, 0, InternalFormat, Width, Height, 0, Format, Typ, Data);
-
- // Freigeben
- if (FreeDataAfterGenTexture) then
- FreeData;
- end;
-
-
- procedure TglBitmap2D.GenTexture(TestTextureSize: Boolean);
- var
- BuildWithGlu, PotTex, 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 ((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_ARB);
-
- 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);
- SelectFormat(InternalFormat, glFormat, glInternalFormat, glType);
-
- UploadData(Target, glFormat, glInternalFormat, glType, BuildWithGlu);
-
- // Infos sammeln
- glAreTexturesResident(1, @ID, @fIsResident);
- end;
- end;
-
-
- procedure TglBitmap2D.AfterConstruction;
- begin
- inherited;
-
- Target := GL_TEXTURE_2D;
- end;
-
-
- 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
- oneover255 = 1 / 255;
-
- procedure glBitmapToNormalMapPrepareFunc (var FuncRec: TglBitmapFunctionRec);
- var
- Val: Single;
- begin
- with FuncRec do begin
- Val := Source.Red * 0.3 + Source.Green * 0.59 + Source.Blue * 0.11;
- PglBitmapToNormalMapRec (CustomData)^.Heights[Position.Y * Size.X + Position.X] := Val * oneover255;
- end;
- end;
-
-
- procedure glBitmapToNormalMapPrepareAlphaFunc (var FuncRec: TglBitmapFunctionRec);
- begin
- with FuncRec do
- PglBitmapToNormalMapRec (CustomData)^.Heights[Position.Y * Size.X + Position.X] := Source.Alpha * oneover255;
- 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 (CustomData)^.Heights[Y * Size.X + X];
- end;
- end;
-
- begin
- with FuncRec do begin
- with PglBitmapToNormalMapRec (CustomData)^ 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.Red := Trunc((Vec[0] + 1) * 127.5);
- Dest.Green := Trunc((Vec[1] + 1) * 127.5);
- Dest.Blue := Trunc((Vec[2] + 1) * 127.5);
- end;
- end;
-
-
- procedure TglBitmap2D.ToNormalMap(Func: TglBitmapNormalMapFunc; Scale: Single; UseAlpha: Boolean);
- var
- Rec: TglBitmapToNormalMapRec;
-
- procedure SetEntry (var Matrix: array of TMatrixItem; Index, X, Y: Integer; W: Single);
- begin
- if (Index >= Low(Matrix)) and (Index <= High(Matrix)) then begin
- Matrix[Index].X := X;
- Matrix[Index].Y := Y;
- Matrix[Index].W := W;
- end;
- end;
-
- begin
- if not FormatIsUncompressed(InternalFormat) then
- raise EglBitmapUnsupportedInternalFormat.Create('TglBitmap2D.ToNormalMap - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- if Scale > 100 then
- Rec.Scale := 100
- else
- if Scale < -100 then
- Rec.Scale := -100
- else
- Rec.Scale := Scale;
-
- SetLength(Rec.Heights, Width * Height);
- try
- case Func 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 UseAlpha and FormatHasAlpha(InternalFormat) then
- AddFunc(glBitmapToNormalMapPrepareAlphaFunc, False, @Rec)
- else
- AddFunc(glBitmapToNormalMapPrepareFunc, False, @Rec);
-
- // Neues Bild berechnen
- AddFunc(glBitmapToNormalMapFunc, False, @Rec);
- finally
- SetLength(Rec.Heights, 0);
- end;
- end;
-
-
- procedure TglBitmap2D.GrabScreen(Top, Left, Right, Bottom: Integer; Format: TglBitmapInternalFormat);
- var
- Temp: pByte;
- Size: Integer;
- glFormat, glInternalFormat, glType: Cardinal;
- begin
- if not FormatIsUncompressed(Format) then
- raise EglBitmapUnsupportedInternalFormat.Create('TglBitmap2D.GrabScreen - ' + UNSUPPORTED_INTERNAL_FORMAT);
-
- // Only to select Formats
- SelectFormat(Format, glFormat, glInternalFormat, glType, False);
-
- Size := FormatGetImageSize(glBitmapPosition(Right - Left, Bottom - Top), Format);
- GetMem(Temp, Size);
- try
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
- glReadPixels(Left, Top, Right - Left, Bottom - Top, glFormat, glType, Temp);
-
- // Set Data
- SetDataPointer(Temp, Format, Right - Left, Bottom - Top);
-
- // Flip
- FlipVert;
- except
- FreeMem(Temp);
- raise;
- end;
- end;
-
-
- procedure TglBitmap2D.GetDataFromTexture;
- var
- Temp: pByte;
- TempWidth, TempHeight, RedSize, GreenSize, BlueSize, AlphaSize, LumSize: Integer;
- TempType, TempIntFormat: Cardinal;
- IntFormat: TglBitmapInternalFormat;
- 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);
-
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_RED_SIZE, @RedSize);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_GREEN_SIZE, @GreenSize);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_BLUE_SIZE, @BlueSize);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_ALPHA_SIZE, @AlphaSize);
- glGetTexLevelParameteriv(Target, 0, GL_TEXTURE_LUMINANCE_SIZE, @LumSize);
-
- // Get glBitmapInternalFormat from TempIntFormat
- TempType := GL_UNSIGNED_BYTE;
- case TempIntFormat of
- GL_ALPHA:
- IntFormat := ifAlpha;
- GL_LUMINANCE:
- IntFormat := ifLuminance;
- GL_LUMINANCE_ALPHA:
- IntFormat := ifLuminanceAlpha;
- GL_RGB4:
- begin
- IntFormat := ifR5G6B5;
- TempIntFormat := GL_RGB;
- TempType := GL_UNSIGNED_SHORT_5_6_5;
- end;
- GL_RGB, GL_RGB8:
- IntFormat := ifRGB8;
- GL_RGBA, GL_RGBA4, GL_RGBA8:
- begin
- if (RedSize = 4) and (BlueSize = 4) and (GreenSize = 4) and (AlphaSize = 4) then begin
- IntFormat := ifRGBA4;
- TempIntFormat := GL_BGRA;
- TempType := GL_UNSIGNED_SHORT_4_4_4_4_REV;
- end else
- if (RedSize = 5) and (BlueSize = 5) and (GreenSize = 5) and (AlphaSize = 1) then begin
- IntFormat := ifRGB5A1;
- TempIntFormat := GL_BGRA;
- TempType := GL_UNSIGNED_SHORT_1_5_5_5_REV;
- end else begin
- IntFormat := ifRGBA8;
- end;
- end;
- GL_BGR:
- IntFormat := ifBGR8;
- GL_BGRA:
- IntFormat := ifBGRA8;
- GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- IntFormat := ifDXT1;
- GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- IntFormat := ifDXT1;
- GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- IntFormat := ifDXT3;
- GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- IntFormat := ifDXT5;
- else
- IntFormat := ifEmpty;
- end;
-
- // Getting data from OpenGL
- GetMem(Temp, FormatGetImageSize(glBitmapPosition(TempWidth, TempHeight), IntFormat));
- try
- if FormatIsCompressed(IntFormat) and (GL_VERSION_1_3 or GL_ARB_texture_compression) then
- glGetCompressedTexImage(Target, 0, Temp)
- else
- glGetTexImage(Target, 0, TempIntFormat, TempType, Temp);
-
- SetDataPointer(Temp, IntFormat, TempWidth, TempHeight);
- except
- FreeMem(Temp);
- raise;
- end;
- end;
-
-
- function TglBitmap2D.GetScanline(Index: Integer): Pointer;
- begin
- if (Index >= Low(fLines)) and (Index <= High(fLines)) then
- Result := fLines[Index]
- else
- Result := nil;
- end;
-
-
- { TglBitmap1D }
-
- 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, @ID, @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(tfDefault);
- glBitmapSetDefaultFilter(GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR);
- glBitmapSetDefaultWrap(GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
-
- glBitmapSetDefaultFreeDataAfterGenTexture(True);
- glBitmapSetDefaultDeleteTextureOnFree(True);
-
- finalization
-
- end.
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