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116 lines
3.9 KiB
116 lines
3.9 KiB
/* |
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img_dds.h - dds format reference |
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Copyright (C) 2015 Uncle Mike |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#ifndef IMG_DDS_H |
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#define IMG_DDS_H |
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/* |
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======================================================================== |
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.DDS image format |
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======================================================================== |
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*/ |
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#define DDSHEADER ((' '<<24)+('S'<<16)+('D'<<8)+'D') // little-endian "DDS " |
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// various four-cc types |
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#define TYPE_DXT1 (('1'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT1" |
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#define TYPE_DXT2 (('2'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT2" |
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#define TYPE_DXT3 (('3'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT3" |
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#define TYPE_DXT4 (('4'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT4" |
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#define TYPE_DXT5 (('5'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT5" |
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#define TYPE_ATI1 (('1'<<24)+('I'<<16)+('T'<<8)+'A') // little-endian "ATI1" |
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#define TYPE_ATI2 (('2'<<24)+('I'<<16)+('T'<<8)+'A') // little-endian "ATI2" |
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#define TYPE_RXGB (('B'<<24)+('G'<<16)+('X'<<8)+'R') // little-endian "RXGB" doom3 normalmaps |
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#define TYPE_$ (('\0'<<24)+('\0'<<16)+('\0'<<8)+'$') // little-endian "$" |
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#define TYPE_o (('\0'<<24)+('\0'<<16)+('\0'<<8)+'o') // little-endian "o" |
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#define TYPE_p (('\0'<<24)+('\0'<<16)+('\0'<<8)+'p') // little-endian "p" |
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#define TYPE_q (('\0'<<24)+('\0'<<16)+('\0'<<8)+'q') // little-endian "q" |
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#define TYPE_r (('\0'<<24)+('\0'<<16)+('\0'<<8)+'r') // little-endian "r" |
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#define TYPE_s (('\0'<<24)+('\0'<<16)+('\0'<<8)+'s') // little-endian "s" |
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#define TYPE_t (('\0'<<24)+('\0'<<16)+('\0'<<8)+'t') // little-endian "t" |
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// dwFlags1 |
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#define DDS_CAPS 0x00000001L |
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#define DDS_HEIGHT 0x00000002L |
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#define DDS_WIDTH 0x00000004L |
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#define DDS_PITCH 0x00000008L |
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#define DDS_PIXELFORMAT 0x00001000L |
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#define DDS_MIPMAPCOUNT 0x00020000L |
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#define DDS_LINEARSIZE 0x00080000L |
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#define DDS_DEPTH 0x00800000L |
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// dwFlags2 |
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#define DDS_ALPHAPIXELS 0x00000001L |
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#define DDS_ALPHA 0x00000002L |
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#define DDS_FOURCC 0x00000004L |
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#define DDS_RGB 0x00000040L |
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#define DDS_RGBA 0x00000041L // (DDS_RGB|DDS_ALPHAPIXELS) |
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#define DDS_LUMINANCE 0x00020000L |
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#define DDS_DUDV 0x00080000L |
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// dwCaps1 |
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#define DDS_COMPLEX 0x00000008L |
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#define DDS_TEXTURE 0x00001000L |
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#define DDS_MIPMAP 0x00400000L |
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// dwCaps2 |
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#define DDS_CUBEMAP 0x00000200L |
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#define DDS_CUBEMAP_POSITIVEX 0x00000400L |
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#define DDS_CUBEMAP_NEGATIVEX 0x00000800L |
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#define DDS_CUBEMAP_POSITIVEY 0x00001000L |
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#define DDS_CUBEMAP_NEGATIVEY 0x00002000L |
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#define DDS_CUBEMAP_POSITIVEZ 0x00004000L |
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#define DDS_CUBEMAP_NEGATIVEZ 0x00008000L |
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#define DDS_CUBEMAP_ALL_SIDES 0x0000FC00L |
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#define DDS_VOLUME 0x00200000L |
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typedef struct dds_pf_s |
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{ |
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uint dwSize; |
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uint dwFlags; |
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uint dwFourCC; |
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uint dwRGBBitCount; |
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uint dwRBitMask; |
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uint dwGBitMask; |
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uint dwBBitMask; |
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uint dwABitMask; |
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} dds_pixf_t; |
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// DDCAPS2 |
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typedef struct dds_caps_s |
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{ |
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uint dwCaps1; |
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uint dwCaps2; |
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uint dwCaps3; // currently unused |
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uint dwCaps4; // currently unused |
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} dds_caps_t; |
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typedef struct dds_s |
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{ |
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uint dwIdent; // must matched with DDSHEADER |
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uint dwSize; |
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uint dwFlags; // determines what fields are valid |
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uint dwHeight; |
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uint dwWidth; |
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uint dwLinearSize; // Formless late-allocated optimized surface size |
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uint dwDepth; // depth if a volume texture |
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uint dwMipMapCount; // number of mip-map levels requested |
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uint dwAlphaBitDepth; // depth of alpha buffer requested |
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uint dwReserved1[10]; // reserved for future expansions |
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dds_pixf_t dsPixelFormat; |
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dds_caps_t dsCaps; |
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uint dwTextureStage; |
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} dds_t; |
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#endif // IMG_DDS_H |
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