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//--------------------------------------------------------------------------------------
// dds.h
//
// This header defines constants and structures that are useful when parsing
// DDS files. DDS files were originally designed to use several structures
// and constants that are native to DirectDraw and are defined in ddraw.h,
// such as DDSURFACEDESC2 and DDSCAPS2. This file defines similar
// (compatible) constants and structures so that one can use DDS files
// without needing to include ddraw.h.
//--------------------------------------------------------------------------------------
#ifndef _DDS_H_
#define _DDS_H_
#include <dxgiformat.h>
#include <d3d11.h>
#pragma pack(push,1)
#define DDS_MAGIC 0x20534444 // "DDS "
struct DDS_PIXELFORMAT
{
DWORD dwSize;
DWORD dwFlags;
DWORD dwFourCC;
DWORD dwRGBBitCount;
DWORD dwRBitMask;
DWORD dwGBitMask;
DWORD dwBBitMask;
DWORD dwABitMask;
};
#define DDS_FOURCC 0x00000004 // DDPF_FOURCC
#define DDS_RGB 0x00000040 // DDPF_RGB
#define DDS_RGBA 0x00000041 // DDPF_RGB | DDPF_ALPHAPIXELS
#define DDS_LUMINANCE 0x00020000 // DDPF_LUMINANCE
#define DDS_ALPHA 0x00000002 // DDPF_ALPHA
const DDS_PIXELFORMAT DDSPF_DXT1 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','1'), 0, 0, 0, 0, 0 };
const DDS_PIXELFORMAT DDSPF_DXT2 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','2'), 0, 0, 0, 0, 0 };
const DDS_PIXELFORMAT DDSPF_DXT3 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','3'), 0, 0, 0, 0, 0 };
const DDS_PIXELFORMAT DDSPF_DXT4 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','4'), 0, 0, 0, 0, 0 };
const DDS_PIXELFORMAT DDSPF_DXT5 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','5'), 0, 0, 0, 0, 0 };
const DDS_PIXELFORMAT DDSPF_A8R8G8B8 =
{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 };
const DDS_PIXELFORMAT DDSPF_A1R5G5B5 =
{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x00007c00, 0x000003e0, 0x0000001f, 0x00008000 };
const DDS_PIXELFORMAT DDSPF_A4R4G4B4 =
{ sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x00000f00, 0x000000f0, 0x0000000f, 0x0000f000 };
const DDS_PIXELFORMAT DDSPF_R8G8B8 =
{ sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x00000000 };
const DDS_PIXELFORMAT DDSPF_R5G6B5 =
{ sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000 };
// This indicates the DDS_HEADER_DXT10 extension is present (the format is in dxgiFormat)
const DDS_PIXELFORMAT DDSPF_DX10 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','1','0'), 0, 0, 0, 0, 0 };
#define DDS_HEADER_FLAGS_TEXTURE 0x00001007 // DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT
#define DDS_HEADER_FLAGS_MIPMAP 0x00020000 // DDSD_MIPMAPCOUNT
#define DDS_HEADER_FLAGS_VOLUME 0x00800000 // DDSD_DEPTH
#define DDS_HEADER_FLAGS_PITCH 0x00000008 // DDSD_PITCH
#define DDS_HEADER_FLAGS_LINEARSIZE 0x00080000 // DDSD_LINEARSIZE
#define DDS_HEIGHT 0x00000002 // DDSD_HEIGHT
#define DDS_WIDTH 0x00000004 // DDSD_WIDTH
#define DDS_SURFACE_FLAGS_TEXTURE 0x00001000 // DDSCAPS_TEXTURE
#define DDS_SURFACE_FLAGS_MIPMAP 0x00400008 // DDSCAPS_COMPLEX | DDSCAPS_MIPMAP
#define DDS_SURFACE_FLAGS_CUBEMAP 0x00000008 // DDSCAPS_COMPLEX
#define DDS_CUBEMAP_POSITIVEX 0x00000600 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEX
#define DDS_CUBEMAP_NEGATIVEX 0x00000a00 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEX
#define DDS_CUBEMAP_POSITIVEY 0x00001200 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEY
#define DDS_CUBEMAP_NEGATIVEY 0x00002200 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEY
#define DDS_CUBEMAP_POSITIVEZ 0x00004200 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_POSITIVEZ
#define DDS_CUBEMAP_NEGATIVEZ 0x00008200 // DDSCAPS2_CUBEMAP | DDSCAPS2_CUBEMAP_NEGATIVEZ
#define DDS_CUBEMAP_ALLFACES ( DDS_CUBEMAP_POSITIVEX | DDS_CUBEMAP_NEGATIVEX |\
DDS_CUBEMAP_POSITIVEY | DDS_CUBEMAP_NEGATIVEY |\
DDS_CUBEMAP_POSITIVEZ | DDS_CUBEMAP_NEGATIVEZ )
#define DDS_CUBEMAP 0x00000200 // DDSCAPS2_CUBEMAP
#define DDS_FLAGS_VOLUME 0x00200000 // DDSCAPS2_VOLUME
// Subset here matches D3D10_RESOURCE_DIMENSION and D3D11_RESOURCE_DIMENSION
typedef enum DDS_RESOURCE_DIMENSION
{
DDS_DIMENSION_TEXTURE1D = 2,
DDS_DIMENSION_TEXTURE2D = 3,
DDS_DIMENSION_TEXTURE3D = 4,
} DDS_RESOURCE_DIMENSION;
// Subset here matches D3D10_RESOURCE_MISC_FLAG and D3D11_RESOURCE_MISC_FLAG
typedef enum DDS_RESOURCE_MISC_FLAG
{
DDS_RESOURCE_MISC_TEXTURECUBE = 0x4L,
} DDS_RESOURCE_MISC_FLAG;
typedef struct
{
DWORD dwSize;
DWORD dwFlags;
DWORD dwHeight;
DWORD dwWidth;
DWORD dwPitchOrLinearSize;
DWORD dwDepth; // only if DDS_HEADER_FLAGS_VOLUME is set in dwFlags
DWORD dwMipMapCount;
DWORD dwReserved1[11];
DDS_PIXELFORMAT ddspf;
DWORD dwCaps;
DWORD dwCaps2;
DWORD dwCaps3;
DWORD dwCaps4;
DWORD dwReserved2;
} DDS_HEADER;
typedef struct
{
DXGI_FORMAT dxgiFormat;
UINT resourceDimension;
DWORD miscFlag; // see DDS_RESOURCE_MISC_FLAG
UINT arraySize;
UINT reserved;
} DDS_HEADER_DXT10;
#pragma pack(pop)
#endif // _DDS_H
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