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114 lines
4.2 KiB
C
114 lines
4.2 KiB
C
/*
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* dds.h
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*
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* This header defines constants and structures that are useful when parsing
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* DDS files. DDS files were originally designed to use several structures
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* and constants that are native to DirectDraw and are defined in ddraw.h,
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* such as DDSURFACEDESC2 and DDSCAPS2. This file defines similar
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* (compatible) constants and structures so that one can use DDS files
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* without needing to include ddraw.h.
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*/
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#ifndef _DDS_H_
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#define _DDS_H_
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typedef struct DDS_PIXELFORMAT DDS_PIXELFORMAT;
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struct DDS_PIXELFORMAT
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{
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DWORD dwSize;
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DWORD dwFlags;
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DWORD dwFourCC;
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DWORD dwRGBBitCount;
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DWORD dwRBitMask;
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DWORD dwGBitMask;
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DWORD dwBBitMask;
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DWORD dwABitMask;
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};
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#ifndef MAKEFOURCC
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#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
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((FOURCC)(BYTE)(ch0) | ((FOURCC)(BYTE)(ch1) << 8) | \
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((FOURCC)(BYTE)(ch2) << 16) | ((FOURCC)(BYTE)(ch3) << 24 ))
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#endif /* MAKEFOURCC */
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#define DDS_FOURCC 0x00000004 /* DDPF_FOURCC */
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#define DDS_RGB 0x00000040 /* DDPF_RGB */
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#define DDS_RGBA 0x00000041 /* DDPF_RGB | DDPF_ALPHAPIXELS */
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#define DDS_ALPHAPIXELS 0x00000001 /* DDPF_ALPHAPIXELS */
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const DDS_PIXELFORMAT DDSPF_DXT1 =
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{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','1'), 0, 0, 0, 0, 0 };
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const DDS_PIXELFORMAT DDSPF_DXT2 =
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{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','2'), 0, 0, 0, 0, 0 };
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const DDS_PIXELFORMAT DDSPF_DXT3 =
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{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','3'), 0, 0, 0, 0, 0 };
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const DDS_PIXELFORMAT DDSPF_DXT4 =
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{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','4'), 0, 0, 0, 0, 0 };
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const DDS_PIXELFORMAT DDSPF_DXT5 =
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{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','5'), 0, 0, 0, 0, 0 };
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const DDS_PIXELFORMAT DDSPF_A8R8G8B8 =
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{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 };
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const DDS_PIXELFORMAT DDSPF_A1R5G5B5 =
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{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x00007c00, 0x000003e0, 0x0000001f, 0x00008000 };
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const DDS_PIXELFORMAT DDSPF_A4R4G4B4 =
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{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x0000f000, 0x000000f0, 0x0000000f, 0x0000f000 };
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const DDS_PIXELFORMAT DDSPF_R8G8B8 =
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{ sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000 };
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const DDS_PIXELFORMAT DDSPF_R5G6B5 =
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{ sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000 };
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#define DDS_HEADER_FLAGS_TEXTURE 0x00001007 /* DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT */
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#define DDS_HEADER_FLAGS_MIPMAP 0x00020000 /* DDSD_MIPMAPCOUNT */
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#define DDS_HEADER_FLAGS_VOLUME 0x00800000 /* DDSD_DEPTH */
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#define DDS_HEADER_FLAGS_PITCH 0x00000008 /* DDSD_PITCH */
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#define DDS_HEADER_FLAGS_LINEARSIZE 0x00080000 /* DDSD_LINEARSIZE */
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#define DDS_SURFACE_FLAGS_TEXTURE 0x00001000 /* DDSCAPS_TEXTURE */
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#define DDS_SURFACE_FLAGS_MIPMAP 0x00400008 /* DDSCAPS_COMPLEX | DDSCAPS_MIPMAP */
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#define DDS_SURFACE_FLAGS_CUBEMAP 0x00000008 /* DDSCAPS_COMPLEX */
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#define DDS_CUBEMAP_POSITIVEX 0x00000600 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEX */
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#define DDS_CUBEMAP_NEGATIVEX 0x00000a00 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEX */
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#define DDS_CUBEMAP_POSITIVEY 0x00001200 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEY */
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#define DDS_CUBEMAP_NEGATIVEY 0x00002200 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEY */
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#define DDS_CUBEMAP_POSITIVEZ 0x00004200 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEZ */
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#define DDS_CUBEMAP_NEGATIVEZ 0x00008200 /* DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEZ */
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#define DDS_CUBEMAP_ALLFACES ( DDS_CUBEMAP_POSITIVEX | DDS_CUBEMAP_NEGATIVEX |\
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DDS_CUBEMAP_POSITIVEY | DDS_CUBEMAP_NEGATIVEY |\
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DDS_CUBEMAP_POSITIVEZ | DDS_CUBEMAP_NEGATIVEZ )
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#define DDS_FLAGS_VOLUME 0x00200000 /* DDSCAPS2_VOLUME */
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typedef struct DDS_HEADER DDS_HEADER;
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struct DDS_HEADER
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{
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DWORD dwSize;
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DWORD dwHeaderFlags;
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DWORD dwHeight;
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DWORD dwWidth;
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DWORD dwPitchOrLinearSize;
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DWORD dwDepth; /* only if DDS_HEADER_FLAGS_VOLUME is set in dwHeaderFlags */
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DWORD dwMipMapCount;
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DWORD dwReserved1[11];
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DDS_PIXELFORMAT ddspf;
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DWORD dwSurfaceFlags;
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DWORD dwCubemapFlags;
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DWORD dwReserved2[3];
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};
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#endif
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