d3d11binding-0.0.0.7: csource/DDSTextureLoader.c
//--------------------------------------------------------------------------------------
// File: DDSTextureLoader.cpp
//
// Functions for loading a DDS texture and creating a Direct3D 11 runtime resource for it
//
// Note these functions are useful as a light-weight runtime loader for DDS files. For
// a full-featured DDS file reader, writer, and texture processing pipeline see
// the 'Texconv' sample and the 'DirectXTex' library.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
// http://go.microsoft.com/fwlink/?LinkId=248929
//--------------------------------------------------------------------------------------
#include "../include/DDSTextureLoader.h"
//--------------------------------------------------------------------------------------
// Macros
//--------------------------------------------------------------------------------------
#ifndef MAKEFOURCC
#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
((uint32_t)(uint8_t)(ch0) | ((uint32_t)(uint8_t)(ch1) << 8) | \
((uint32_t)(uint8_t)(ch2) << 16) | ((uint32_t)(uint8_t)(ch3) << 24 ))
#endif /* defined(MAKEFOURCC) */
//--------------------------------------------------------------------------------------
// DDS file structure definitions
//
// See DDS.h in the 'Texconv' sample and the 'DirectXTex' library
//--------------------------------------------------------------------------------------
#pragma pack(push,1)
const uint32_t DDS_MAGIC = 0x20534444; // "DDS "
typedef struct
{
uint32_t size;
uint32_t flags;
uint32_t fourCC;
uint32_t RGBBitCount;
uint32_t RBitMask;
uint32_t GBitMask;
uint32_t BBitMask;
uint32_t ABitMask;
} DDS_PIXELFORMAT;
#define DDS_FOURCC 0x00000004 // DDPF_FOURCC
#define DDS_RGB 0x00000040 // DDPF_RGB
#define DDS_LUMINANCE 0x00020000 // DDPF_LUMINANCE
#define DDS_ALPHA 0x00000002 // DDPF_ALPHA
#define DDS_BUMPDUDV 0x00080000 // DDPF_BUMPDUDV
#define DDS_HEADER_FLAGS_VOLUME 0x00800000 // DDSD_DEPTH
#define DDS_HEIGHT 0x00000002 // DDSD_HEIGHT
#define DDS_WIDTH 0x00000004 // DDSD_WIDTH
#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
enum DDS_MISC_FLAGS2
{
DDS_MISC_FLAGS2_ALPHA_MODE_MASK = 0x7L,
};
typedef struct
{
uint32_t size;
uint32_t flags;
uint32_t height;
uint32_t width;
uint32_t pitchOrLinearSize;
uint32_t depth; // only if DDS_HEADER_FLAGS_VOLUME is set in flags
uint32_t mipMapCount;
uint32_t reserved1[11];
DDS_PIXELFORMAT ddspf;
uint32_t caps;
uint32_t caps2;
uint32_t caps3;
uint32_t caps4;
uint32_t reserved2;
} DDS_HEADER;
typedef struct
{
DXGI_FORMAT dxgiFormat;
uint32_t resourceDimension;
uint32_t miscFlag; // see D3D11_RESOURCE_MISC_FLAG
uint32_t arraySize;
uint32_t miscFlags2;
} DDS_HEADER_DXT10;
#pragma pack(pop)
//--------------------------------------------------------------------------------------
void CloseHandleSafe(HANDLE h) { if (h) CloseHandle(h);}
inline HANDLE safe_handle( HANDLE h ) { return (h == INVALID_HANDLE_VALUE) ? 0 : h; }
//--------------------------------------------------------------------------------------
static HRESULT LoadTextureDataFromFile( const wchar_t* fileName,
uint8_t** ddsData,
DDS_HEADER** header,
uint8_t** bitData,
size_t* bitSize
)
{
if (!header || !bitData || !bitSize)
{
return E_POINTER;
}
// open the file
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
HANDLE hFile = safe_handle( CreateFile2( fileName,
GENERIC_READ,
FILE_SHARE_READ,
OPEN_EXISTING,
NULL ) ) ;
#else
HANDLE hFile = safe_handle( CreateFileW( fileName,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL ) );
#endif
if ( !hFile )
{
CloseHandleSafe(hFile);
return HRESULT_FROM_WIN32( GetLastError() );
}
// Get the file size
LARGE_INTEGER FileSize = { 0 };
#if (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
FILE_STANDARD_INFO fileInfo;
if ( !GetFileInformationByHandleEx( hFile, FileStandardInfo, &fileInfo, sizeof(fileInfo) ) )
{
CloseHandleSafe(hFile);
return HRESULT_FROM_WIN32( GetLastError() );
}
FileSize = fileInfo.EndOfFile;
#else
GetFileSizeEx( hFile, &FileSize );
#endif
// File is too big for 32-bit allocation, so reject read
if (FileSize.HighPart > 0)
{
CloseHandleSafe(hFile);
return E_FAIL;
}
// Need at least enough data to fill the header and magic number to be a valid DDS
if (FileSize.LowPart < ( sizeof(DDS_HEADER) + sizeof(uint32_t) ) )
{
CloseHandleSafe(hFile);
return E_FAIL;
}
// create enough space for the file data
*ddsData = malloc(sizeof(uint8_t) * FileSize.LowPart);
if (!*ddsData)
{
CloseHandleSafe(hFile);
return E_OUTOFMEMORY;
}
// read the data in
DWORD BytesRead = 0;
if (!ReadFile( hFile,
*ddsData,
FileSize.LowPart,
&BytesRead,
NULL
))
{
CloseHandleSafe(hFile);
return HRESULT_FROM_WIN32( GetLastError() );
}
if (BytesRead < FileSize.LowPart)
{
CloseHandleSafe(hFile);
return E_FAIL;
}
// DDS files always start with the same magic number ("DDS ")
uint32_t dwMagicNumber = *( const uint32_t* )( *ddsData );
if (dwMagicNumber != DDS_MAGIC)
{
CloseHandleSafe(hFile);
return E_FAIL;
}
DDS_HEADER* hdr = (DDS_HEADER*)( *ddsData + sizeof( uint32_t ) );
// Verify header to validate DDS file
if (hdr->size != sizeof(DDS_HEADER) ||
hdr->ddspf.size != sizeof(DDS_PIXELFORMAT))
{
CloseHandleSafe(hFile);
return E_FAIL;
}
// Check for DX10 extension
BOOL bDXT10Header = FALSE;
if ((hdr->ddspf.flags & DDS_FOURCC) &&
(MAKEFOURCC( 'D', 'X', '1', '0' ) == hdr->ddspf.fourCC))
{
// Must be long enough for both headers and magic value
if (FileSize.LowPart < ( sizeof(DDS_HEADER) + sizeof(uint32_t) + sizeof(DDS_HEADER_DXT10) ) )
{
CloseHandleSafe(hFile);
return E_FAIL;
}
bDXT10Header = TRUE;
}
// setup the pointers in the process request
*header = hdr;
ptrdiff_t offset = sizeof( uint32_t ) + sizeof( DDS_HEADER )
+ (bDXT10Header ? sizeof( DDS_HEADER_DXT10 ) : 0);
*bitData = *ddsData + offset;
*bitSize = FileSize.LowPart - offset;
CloseHandleSafe(hFile);
return S_OK;
}
//--------------------------------------------------------------------------------------
// Return the BPP for a particular format
//--------------------------------------------------------------------------------------
static size_t BitsPerPixel( _In_ DXGI_FORMAT fmt )
{
switch( fmt )
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32A32_UINT:
case DXGI_FORMAT_R32G32B32A32_SINT:
return 128;
case DXGI_FORMAT_R32G32B32_TYPELESS:
case DXGI_FORMAT_R32G32B32_FLOAT:
case DXGI_FORMAT_R32G32B32_UINT:
case DXGI_FORMAT_R32G32B32_SINT:
return 96;
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16B16A16_UNORM:
case DXGI_FORMAT_R16G16B16A16_UINT:
case DXGI_FORMAT_R16G16B16A16_SNORM:
case DXGI_FORMAT_R16G16B16A16_SINT:
case DXGI_FORMAT_R32G32_TYPELESS:
case DXGI_FORMAT_R32G32_FLOAT:
case DXGI_FORMAT_R32G32_UINT:
case DXGI_FORMAT_R32G32_SINT:
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
case DXGI_FORMAT_Y416:
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y216:
return 64;
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_R10G10B10A2_UINT:
case DXGI_FORMAT_R11G11B10_FLOAT:
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
case DXGI_FORMAT_R8G8B8A8_UINT:
case DXGI_FORMAT_R8G8B8A8_SNORM:
case DXGI_FORMAT_R8G8B8A8_SINT:
case DXGI_FORMAT_R16G16_TYPELESS:
case DXGI_FORMAT_R16G16_FLOAT:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_R16G16_UINT:
case DXGI_FORMAT_R16G16_SNORM:
case DXGI_FORMAT_R16G16_SINT:
case DXGI_FORMAT_R32_TYPELESS:
case DXGI_FORMAT_D32_FLOAT:
case DXGI_FORMAT_R32_FLOAT:
case DXGI_FORMAT_R32_UINT:
case DXGI_FORMAT_R32_SINT:
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_D24_UNORM_S8_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_B8G8R8X8_UNORM:
case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_YUY2:
return 32;
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
return 24;
case DXGI_FORMAT_R8G8_TYPELESS:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R8G8_UINT:
case DXGI_FORMAT_R8G8_SNORM:
case DXGI_FORMAT_R8G8_SINT:
case DXGI_FORMAT_R16_TYPELESS:
case DXGI_FORMAT_R16_FLOAT:
case DXGI_FORMAT_D16_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16_UINT:
case DXGI_FORMAT_R16_SNORM:
case DXGI_FORMAT_R16_SINT:
case DXGI_FORMAT_B5G6R5_UNORM:
case DXGI_FORMAT_B5G5R5A1_UNORM:
case DXGI_FORMAT_A8P8:
case DXGI_FORMAT_B4G4R4A4_UNORM:
return 16;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_420_OPAQUE:
case DXGI_FORMAT_NV11:
return 12;
case DXGI_FORMAT_R8_TYPELESS:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8_UINT:
case DXGI_FORMAT_R8_SNORM:
case DXGI_FORMAT_R8_SINT:
case DXGI_FORMAT_A8_UNORM:
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_P8:
return 8;
case DXGI_FORMAT_R1_UNORM:
return 1;
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
return 4;
case DXGI_FORMAT_BC2_TYPELESS:
case DXGI_FORMAT_BC2_UNORM:
case DXGI_FORMAT_BC2_UNORM_SRGB:
case DXGI_FORMAT_BC3_TYPELESS:
case DXGI_FORMAT_BC3_UNORM:
case DXGI_FORMAT_BC3_UNORM_SRGB:
case DXGI_FORMAT_BC5_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
return 8;
default:
return 0;
}
}
//--------------------------------------------------------------------------------------
// Get surface information for a particular format
//--------------------------------------------------------------------------------------
static void GetSurfaceInfo( size_t width,
size_t height,
DXGI_FORMAT fmt,
size_t* outNumBytes,
size_t* outRowBytes,
size_t* outNumRows )
{
size_t numBytes = 0;
size_t rowBytes = 0;
size_t numRows = 0;
BOOL bc = FALSE;
BOOL packed = FALSE;
BOOL planar = FALSE;
size_t bpe = 0;
switch (fmt)
{
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
bc=TRUE;
bpe = 8;
break;
case DXGI_FORMAT_BC2_TYPELESS:
case DXGI_FORMAT_BC2_UNORM:
case DXGI_FORMAT_BC2_UNORM_SRGB:
case DXGI_FORMAT_BC3_TYPELESS:
case DXGI_FORMAT_BC3_UNORM:
case DXGI_FORMAT_BC3_UNORM_SRGB:
case DXGI_FORMAT_BC5_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
bc = TRUE;
bpe = 16;
break;
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_YUY2:
packed = TRUE;
bpe = 4;
break;
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y216:
packed = TRUE;
bpe = 8;
break;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_420_OPAQUE:
planar = TRUE;
bpe = 2;
break;
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
planar = TRUE;
bpe = 4;
break;
}
if (bc)
{
size_t numBlocksWide = 0;
if (width > 0)
{
numBlocksWide = max( 1, (width + 3) / 4 );
}
size_t numBlocksHigh = 0;
if (height > 0)
{
numBlocksHigh = max( 1, (height + 3) / 4 );
}
rowBytes = numBlocksWide * bpe;
numRows = numBlocksHigh;
numBytes = rowBytes * numBlocksHigh;
}
else if (packed)
{
rowBytes = ( ( width + 1 ) >> 1 ) * bpe;
numRows = height;
numBytes = rowBytes * height;
}
else if ( fmt == DXGI_FORMAT_NV11 )
{
rowBytes = ( ( width + 3 ) >> 2 ) * 4;
numRows = height * 2; // Direct3D makes this simplifying assumption, although it is larger than the 4:1:1 data
numBytes = rowBytes * numRows;
}
else if (planar)
{
rowBytes = ( ( width + 1 ) >> 1 ) * bpe;
numBytes = ( rowBytes * height ) + ( ( rowBytes * height + 1 ) >> 1 );
numRows = height + ( ( height + 1 ) >> 1 );
}
else
{
size_t bpp = BitsPerPixel( fmt );
rowBytes = ( width * bpp + 7 ) / 8; // round up to nearest byte
numRows = height;
numBytes = rowBytes * height;
}
if (outNumBytes)
{
*outNumBytes = numBytes;
}
if (outRowBytes)
{
*outRowBytes = rowBytes;
}
if (outNumRows)
{
*outNumRows = numRows;
}
}
//--------------------------------------------------------------------------------------
#define ISBITMASK( r,g,b,a ) ( ddpf->RBitMask == r && ddpf->GBitMask == g && ddpf->BBitMask == b && ddpf->ABitMask == a )
static DXGI_FORMAT GetDXGIFormat( const DDS_PIXELFORMAT* ddpf )
{
if (ddpf->flags & DDS_RGB)
{
// Note that sRGB formats are written using the "DX10" extended header
switch (ddpf->RGBBitCount)
{
case 32:
if (ISBITMASK(0x000000ff,0x0000ff00,0x00ff0000,0xff000000))
{
return DXGI_FORMAT_R8G8B8A8_UNORM;
}
if (ISBITMASK(0x00ff0000,0x0000ff00,0x000000ff,0xff000000))
{
return DXGI_FORMAT_B8G8R8A8_UNORM;
}
if (ISBITMASK(0x00ff0000,0x0000ff00,0x000000ff,0x00000000))
{
return DXGI_FORMAT_B8G8R8X8_UNORM;
}
// No DXGI format maps to ISBITMASK(0x000000ff,0x0000ff00,0x00ff0000,0x00000000) aka D3DFMT_X8B8G8R8
// Note that many common DDS reader/writers (including D3DX) swap the
// the RED/BLUE masks for 10:10:10:2 formats. We assume
// below that the 'backwards' header mask is being used since it is most
// likely written by D3DX. The more robust solution is to use the 'DX10'
// header extension and specify the DXGI_FORMAT_R10G10B10A2_UNORM format directly
// For 'correct' writers, this should be 0x000003ff,0x000ffc00,0x3ff00000 for RGB data
if (ISBITMASK(0x3ff00000,0x000ffc00,0x000003ff,0xc0000000))
{
return DXGI_FORMAT_R10G10B10A2_UNORM;
}
// No DXGI format maps to ISBITMASK(0x000003ff,0x000ffc00,0x3ff00000,0xc0000000) aka D3DFMT_A2R10G10B10
if (ISBITMASK(0x0000ffff,0xffff0000,0x00000000,0x00000000))
{
return DXGI_FORMAT_R16G16_UNORM;
}
if (ISBITMASK(0xffffffff,0x00000000,0x00000000,0x00000000))
{
// Only 32-bit color channel format in D3D9 was R32F
return DXGI_FORMAT_R32_FLOAT; // D3DX writes this out as a FourCC of 114
}
break;
case 24:
// No 24bpp DXGI formats aka D3DFMT_R8G8B8
break;
case 16:
if (ISBITMASK(0x7c00,0x03e0,0x001f,0x8000))
{
return DXGI_FORMAT_B5G5R5A1_UNORM;
}
if (ISBITMASK(0xf800,0x07e0,0x001f,0x0000))
{
return DXGI_FORMAT_B5G6R5_UNORM;
}
// No DXGI format maps to ISBITMASK(0x7c00,0x03e0,0x001f,0x0000) aka D3DFMT_X1R5G5B5
if (ISBITMASK(0x0f00,0x00f0,0x000f,0xf000))
{
return DXGI_FORMAT_B4G4R4A4_UNORM;
}
// No DXGI format maps to ISBITMASK(0x0f00,0x00f0,0x000f,0x0000) aka D3DFMT_X4R4G4B4
// No 3:3:2, 3:3:2:8, or paletted DXGI formats aka D3DFMT_A8R3G3B2, D3DFMT_R3G3B2, D3DFMT_P8, D3DFMT_A8P8, etc.
break;
}
}
else if (ddpf->flags & DDS_LUMINANCE)
{
if (8 == ddpf->RGBBitCount)
{
if (ISBITMASK(0x000000ff,0x00000000,0x00000000,0x00000000))
{
return DXGI_FORMAT_R8_UNORM; // D3DX10/11 writes this out as DX10 extension
}
// No DXGI format maps to ISBITMASK(0x0f,0x00,0x00,0xf0) aka D3DFMT_A4L4
}
if (16 == ddpf->RGBBitCount)
{
if (ISBITMASK(0x0000ffff,0x00000000,0x00000000,0x00000000))
{
return DXGI_FORMAT_R16_UNORM; // D3DX10/11 writes this out as DX10 extension
}
if (ISBITMASK(0x000000ff,0x00000000,0x00000000,0x0000ff00))
{
return DXGI_FORMAT_R8G8_UNORM; // D3DX10/11 writes this out as DX10 extension
}
}
}
else if (ddpf->flags & DDS_ALPHA)
{
if (8 == ddpf->RGBBitCount)
{
return DXGI_FORMAT_A8_UNORM;
}
}
else if (ddpf->flags & DDS_BUMPDUDV)
{
if (16 == ddpf->RGBBitCount)
{
if (ISBITMASK(0x00ff, 0xff00, 0x0000, 0x0000))
{
return DXGI_FORMAT_R8G8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
}
if (32 == ddpf->RGBBitCount)
{
if (ISBITMASK(0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000))
{
return DXGI_FORMAT_R8G8B8A8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
if (ISBITMASK(0x0000ffff, 0xffff0000, 0x00000000, 0x00000000))
{
return DXGI_FORMAT_R16G16_SNORM; // D3DX10/11 writes this out as DX10 extension
}
// No DXGI format maps to ISBITMASK(0x3ff00000, 0x000ffc00, 0x000003ff, 0xc0000000) aka D3DFMT_A2W10V10U10
}
}
else if (ddpf->flags & DDS_FOURCC)
{
if (MAKEFOURCC( 'D', 'X', 'T', '1' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC1_UNORM;
}
if (MAKEFOURCC( 'D', 'X', 'T', '3' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC2_UNORM;
}
if (MAKEFOURCC( 'D', 'X', 'T', '5' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC3_UNORM;
}
// While pre-multiplied alpha isn't directly supported by the DXGI formats,
// they are basically the same as these BC formats so they can be mapped
if (MAKEFOURCC( 'D', 'X', 'T', '2' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC2_UNORM;
}
if (MAKEFOURCC( 'D', 'X', 'T', '4' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC3_UNORM;
}
if (MAKEFOURCC( 'A', 'T', 'I', '1' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC4_UNORM;
}
if (MAKEFOURCC( 'B', 'C', '4', 'U' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC4_UNORM;
}
if (MAKEFOURCC( 'B', 'C', '4', 'S' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC4_SNORM;
}
if (MAKEFOURCC( 'A', 'T', 'I', '2' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC5_UNORM;
}
if (MAKEFOURCC( 'B', 'C', '5', 'U' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC5_UNORM;
}
if (MAKEFOURCC( 'B', 'C', '5', 'S' ) == ddpf->fourCC)
{
return DXGI_FORMAT_BC5_SNORM;
}
// BC6H and BC7 are written using the "DX10" extended header
if (MAKEFOURCC( 'R', 'G', 'B', 'G' ) == ddpf->fourCC)
{
return DXGI_FORMAT_R8G8_B8G8_UNORM;
}
if (MAKEFOURCC( 'G', 'R', 'G', 'B' ) == ddpf->fourCC)
{
return DXGI_FORMAT_G8R8_G8B8_UNORM;
}
if (MAKEFOURCC('Y','U','Y','2') == ddpf->fourCC)
{
return DXGI_FORMAT_YUY2;
}
// Check for D3DFORMAT enums being set here
switch( ddpf->fourCC )
{
case 36: // D3DFMT_A16B16G16R16
return DXGI_FORMAT_R16G16B16A16_UNORM;
case 110: // D3DFMT_Q16W16V16U16
return DXGI_FORMAT_R16G16B16A16_SNORM;
case 111: // D3DFMT_R16F
return DXGI_FORMAT_R16_FLOAT;
case 112: // D3DFMT_G16R16F
return DXGI_FORMAT_R16G16_FLOAT;
case 113: // D3DFMT_A16B16G16R16F
return DXGI_FORMAT_R16G16B16A16_FLOAT;
case 114: // D3DFMT_R32F
return DXGI_FORMAT_R32_FLOAT;
case 115: // D3DFMT_G32R32F
return DXGI_FORMAT_R32G32_FLOAT;
case 116: // D3DFMT_A32B32G32R32F
return DXGI_FORMAT_R32G32B32A32_FLOAT;
}
}
return DXGI_FORMAT_UNKNOWN;
}
//--------------------------------------------------------------------------------------
static DXGI_FORMAT MakeSRGB( _In_ DXGI_FORMAT format )
{
switch( format )
{
case DXGI_FORMAT_R8G8B8A8_UNORM:
return DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
case DXGI_FORMAT_BC1_UNORM:
return DXGI_FORMAT_BC1_UNORM_SRGB;
case DXGI_FORMAT_BC2_UNORM:
return DXGI_FORMAT_BC2_UNORM_SRGB;
case DXGI_FORMAT_BC3_UNORM:
return DXGI_FORMAT_BC3_UNORM_SRGB;
case DXGI_FORMAT_B8G8R8A8_UNORM:
return DXGI_FORMAT_B8G8R8A8_UNORM_SRGB;
case DXGI_FORMAT_B8G8R8X8_UNORM:
return DXGI_FORMAT_B8G8R8X8_UNORM_SRGB;
case DXGI_FORMAT_BC7_UNORM:
return DXGI_FORMAT_BC7_UNORM_SRGB;
default:
return format;
}
}
//--------------------------------------------------------------------------------------
static HRESULT FillInitData( size_t width,
size_t height,
size_t depth,
size_t mipCount,
size_t arraySize,
DXGI_FORMAT format,
size_t maxsize,
size_t bitSize,
const uint8_t* bitData,
size_t* twidth,
size_t* theight,
size_t* tdepth,
size_t* skipMip,
D3D11_SUBRESOURCE_DATA* initData )
{
if ( !bitData || !initData )
{
return E_POINTER;
}
*skipMip = 0;
*twidth = 0;
*theight = 0;
*tdepth = 0;
size_t NumBytes = 0;
size_t RowBytes = 0;
const uint8_t* pSrcBits = bitData;
const uint8_t* pEndBits = bitData + bitSize;
size_t index = 0;
for( size_t j = 0; j < arraySize; j++ )
{
size_t w = width;
size_t h = height;
size_t d = depth;
for( size_t i = 0; i < mipCount; i++ )
{
GetSurfaceInfo( w,
h,
format,
&NumBytes,
&RowBytes,
NULL
);
if ( (mipCount <= 1) || !maxsize || (w <= maxsize && h <= maxsize && d <= maxsize) )
{
if ( !(*twidth) )
{
*twidth = w;
*theight = h;
*tdepth = d;
}
initData[index].pSysMem = ( const void* )pSrcBits;
initData[index].SysMemPitch = (UINT)RowBytes;
initData[index].SysMemSlicePitch = (UINT)NumBytes;
++index;
}
else if ( !j )
{
// Count number of skipped mipmaps (first item only)
++(*skipMip);
}
if (pSrcBits + (NumBytes*d) > pEndBits)
{
return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
}
pSrcBits += NumBytes * d;
w = w >> 1;
h = h >> 1;
d = d >> 1;
if (w == 0)
{
w = 1;
}
if (h == 0)
{
h = 1;
}
if (d == 0)
{
d = 1;
}
}
}
return (index > 0) ? S_OK : E_FAIL;
}
//--------------------------------------------------------------------------------------
static HRESULT CreateD3DResources( ID3D11Device* d3dDevice,
uint32_t resDim,
size_t width,
size_t height,
size_t depth,
size_t mipCount,
size_t arraySize,
DXGI_FORMAT format,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
BOOL isCubeMap,
D3D11_SUBRESOURCE_DATA* initData,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView )
{
if ( !d3dDevice )
return E_POINTER;
HRESULT hr = E_FAIL;
if ( forceSRGB )
{
format = MakeSRGB( format );
}
switch ( resDim )
{
case D3D11_RESOURCE_DIMENSION_TEXTURE1D:
{
D3D11_TEXTURE1D_DESC desc;
desc.Width = (UINT)width;
desc.MipLevels = (UINT)mipCount;
desc.ArraySize = (UINT)arraySize;
desc.Format = format;
desc.Usage = usage;
desc.BindFlags = bindFlags;
desc.CPUAccessFlags = cpuAccessFlags;
desc.MiscFlags = miscFlags & ~D3D11_RESOURCE_MISC_TEXTURECUBE;
ID3D11Texture1D* tex = NULL;
hr = d3dDevice->lpVtbl->CreateTexture1D( d3dDevice, &desc,
initData,
&tex
);
if (SUCCEEDED( hr ) && tex != 0)
{
if (textureView != 0)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
memset( &SRVDesc, 0, sizeof( SRVDesc ) );
SRVDesc.Format = format;
if (arraySize > 1)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1DARRAY;
SRVDesc.Texture1DArray.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
SRVDesc.Texture1DArray.ArraySize = (UINT) arraySize;
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
SRVDesc.Texture1D.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
}
hr = d3dDevice->lpVtbl->CreateShaderResourceView(d3dDevice, (ID3D11Resource*)tex,
&SRVDesc,
textureView
);
if ( FAILED(hr) )
{
tex->lpVtbl->Release(tex);
return hr;
}
}
if (texture != 0)
{
*texture = (ID3D11Resource*)tex;
}
else
{
tex->lpVtbl->Release(tex);
}
}
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE2D:
{
D3D11_TEXTURE2D_DESC desc;
desc.Width = (UINT)width;
desc.Height = (UINT)height;
desc.MipLevels = (UINT)mipCount;
desc.ArraySize = (UINT)arraySize;
desc.Format = format;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Usage = usage;
desc.BindFlags = bindFlags;
desc.CPUAccessFlags = cpuAccessFlags;
if ( isCubeMap )
{
desc.MiscFlags = miscFlags | D3D11_RESOURCE_MISC_TEXTURECUBE;
}
else
{
desc.MiscFlags = miscFlags & ~D3D11_RESOURCE_MISC_TEXTURECUBE;
}
ID3D11Texture2D* tex = NULL;
hr = d3dDevice->lpVtbl->CreateTexture2D( d3dDevice, &desc,
initData,
&tex
);
if (SUCCEEDED( hr ) && tex != 0)
{
if (textureView != 0)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
memset( &SRVDesc, 0, sizeof( SRVDesc ) );
SRVDesc.Format = format;
if ( isCubeMap )
{
if (arraySize > 6)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBEARRAY;
SRVDesc.TextureCubeArray.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
// Earlier we set arraySize to (NumCubes * 6)
SRVDesc.TextureCubeArray.NumCubes = (UINT)( arraySize / 6 );
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBE;
SRVDesc.TextureCube.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
}
}
else if (arraySize > 1)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DARRAY;
SRVDesc.Texture2DArray.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
SRVDesc.Texture2DArray.ArraySize = (UINT)arraySize;
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
SRVDesc.Texture2D.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
}
hr = d3dDevice->lpVtbl->CreateShaderResourceView(d3dDevice, (ID3D11Resource*)tex,
&SRVDesc,
textureView
);
if ( FAILED(hr) )
{
tex->lpVtbl->Release(tex);
return hr;
}
}
if (texture != 0)
{
*texture = (ID3D11Resource*)tex;
}
else
{
tex->lpVtbl->Release(tex);
}
}
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE3D:
{
D3D11_TEXTURE3D_DESC desc;
desc.Width = (UINT)width;
desc.Height = (UINT)height ;
desc.Depth = (UINT)depth;
desc.MipLevels = (UINT)mipCount;
desc.Format = format;
desc.Usage = usage;
desc.BindFlags = bindFlags;
desc.CPUAccessFlags = cpuAccessFlags;
desc.MiscFlags = miscFlags & ~D3D11_RESOURCE_MISC_TEXTURECUBE;
ID3D11Texture3D* tex = NULL;
hr = d3dDevice->lpVtbl->CreateTexture3D(d3dDevice, &desc,
initData,
&tex
);
if (SUCCEEDED( hr ) && tex != 0)
{
if (textureView != 0)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
memset( &SRVDesc, 0, sizeof( SRVDesc ) );
SRVDesc.Format = format;
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE3D;
SRVDesc.Texture3D.MipLevels = (!mipCount) ? -1 : desc.MipLevels;
hr = d3dDevice->lpVtbl->CreateShaderResourceView(d3dDevice, (ID3D11Resource*)tex,
&SRVDesc,
textureView
);
if ( FAILED(hr) )
{
tex->lpVtbl->Release(tex);
return hr;
}
}
if (texture != 0)
{
*texture = (ID3D11Resource*)tex;
}
else
{
tex->lpVtbl->Release(tex);
}
}
}
break;
}
return hr;
}
//--------------------------------------------------------------------------------------
static HRESULT CreateTextureFromDDS( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const DDS_HEADER* header,
const uint8_t* bitData,
size_t bitSize,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView )
{
HRESULT hr = S_OK;
UINT width = header->width;
UINT height = header->height;
UINT depth = header->depth;
uint32_t resDim = D3D11_RESOURCE_DIMENSION_UNKNOWN;
UINT arraySize = 1;
DXGI_FORMAT format = DXGI_FORMAT_UNKNOWN;
BOOL isCubeMap = FALSE;
size_t mipCount = header->mipMapCount;
if (0 == mipCount)
{
mipCount = 1;
}
if ((header->ddspf.flags & DDS_FOURCC) &&
(MAKEFOURCC( 'D', 'X', '1', '0' ) == header->ddspf.fourCC ))
{
const DDS_HEADER_DXT10* d3d10ext = (const DDS_HEADER_DXT10*)( (const char*)header + sizeof(DDS_HEADER) );
arraySize = d3d10ext->arraySize;
if (arraySize == 0)
{
return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
}
switch( d3d10ext->dxgiFormat )
{
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_P8:
case DXGI_FORMAT_A8P8:
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
default:
if ( BitsPerPixel( d3d10ext->dxgiFormat ) == 0 )
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
}
format = d3d10ext->dxgiFormat;
switch ( d3d10ext->resourceDimension )
{
case D3D11_RESOURCE_DIMENSION_TEXTURE1D:
// D3DX writes 1D textures with a fixed Height of 1
if ((header->flags & DDS_HEIGHT) && height != 1)
{
return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
}
height = depth = 1;
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE2D:
if (d3d10ext->miscFlag & D3D11_RESOURCE_MISC_TEXTURECUBE)
{
arraySize *= 6;
isCubeMap = TRUE;
}
depth = 1;
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE3D:
if (!(header->flags & DDS_HEADER_FLAGS_VOLUME))
{
return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
}
if (arraySize > 1)
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
break;
default:
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
resDim = d3d10ext->resourceDimension;
}
else
{
format = GetDXGIFormat( &(header->ddspf) );
if (format == DXGI_FORMAT_UNKNOWN)
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
if (header->flags & DDS_HEADER_FLAGS_VOLUME)
{
resDim = D3D11_RESOURCE_DIMENSION_TEXTURE3D;
}
else
{
if (header->caps2 & DDS_CUBEMAP)
{
// We require all six faces to be defined
if ((header->caps2 & DDS_CUBEMAP_ALLFACES ) != DDS_CUBEMAP_ALLFACES)
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
arraySize = 6;
isCubeMap = TRUE;
}
depth = 1;
resDim = D3D11_RESOURCE_DIMENSION_TEXTURE2D;
// Note there's no way for a legacy Direct3D 9 DDS to express a '1D' texture
}
}
// Bound sizes (for security purposes we don't trust DDS file metadata larger than the D3D 11.x hardware requirements)
if (mipCount > D3D11_REQ_MIP_LEVELS)
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
switch ( resDim )
{
case D3D11_RESOURCE_DIMENSION_TEXTURE1D:
if ((arraySize > D3D11_REQ_TEXTURE1D_ARRAY_AXIS_DIMENSION) ||
(width > D3D11_REQ_TEXTURE1D_U_DIMENSION) )
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE2D:
if ( isCubeMap )
{
// This is the right bound because we set arraySize to (NumCubes*6) above
if ((arraySize > D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION) ||
(width > D3D11_REQ_TEXTURECUBE_DIMENSION) ||
(height > D3D11_REQ_TEXTURECUBE_DIMENSION))
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
}
else if ((arraySize > D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION) ||
(width > D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION) ||
(height > D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION))
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE3D:
if ((arraySize > 1) ||
(width > D3D11_REQ_TEXTURE3D_U_V_OR_W_DIMENSION) ||
(height > D3D11_REQ_TEXTURE3D_U_V_OR_W_DIMENSION) ||
(depth > D3D11_REQ_TEXTURE3D_U_V_OR_W_DIMENSION) )
{
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
break;
default:
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
BOOL autogen = FALSE;
if ( mipCount == 1 && d3dContext != 0 && textureView != 0 ) // Must have context and shader-view to auto generate mipmaps
{
// See if format is supported for auto-gen mipmaps (varies by feature level)
UINT fmtSupport = 0;
hr = d3dDevice->lpVtbl->CheckFormatSupport(d3dDevice, format, &fmtSupport );
if ( SUCCEEDED(hr) && ( fmtSupport & D3D11_FORMAT_SUPPORT_MIP_AUTOGEN ) )
{
// 10level9 feature levels do not support auto-gen mipgen for volume textures
if ( ( resDim != D3D11_RESOURCE_DIMENSION_TEXTURE3D )
|| ( d3dDevice->lpVtbl->GetFeatureLevel(d3dDevice) >= D3D_FEATURE_LEVEL_10_0 ) )
{
autogen = TRUE;
}
}
}
if ( autogen )
{
// Create texture with auto-generated mipmaps
ID3D11Resource* tex = NULL;
hr = CreateD3DResources( d3dDevice, resDim, width, height, depth, 0, arraySize,
format, usage,
bindFlags | D3D11_BIND_RENDER_TARGET,
cpuAccessFlags,
miscFlags | D3D11_RESOURCE_MISC_GENERATE_MIPS, forceSRGB,
isCubeMap, NULL, &tex, textureView );
if ( SUCCEEDED(hr) )
{
size_t numBytes = 0;
size_t rowBytes = 0;
GetSurfaceInfo( width, height, format, &numBytes, &rowBytes, NULL );
if ( numBytes > bitSize )
{
(*textureView)->lpVtbl->Release(*textureView);
*textureView = NULL;
tex->lpVtbl->Release(tex);
return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
}
D3D11_SHADER_RESOURCE_VIEW_DESC desc;
(*textureView)->lpVtbl->GetDesc(*textureView, &desc );
UINT mipLevels = 1;
switch( desc.ViewDimension )
{
case D3D_SRV_DIMENSION_TEXTURE1D: mipLevels = desc.Texture1D.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURE1DARRAY: mipLevels = desc.Texture1DArray.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURE2D: mipLevels = desc.Texture2D.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURE2DARRAY: mipLevels = desc.Texture2DArray.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURECUBE: mipLevels = desc.TextureCube.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURECUBEARRAY:mipLevels = desc.TextureCubeArray.MipLevels; break;
case D3D_SRV_DIMENSION_TEXTURE3D: mipLevels = desc.Texture3D.MipLevels; break;
default:
(*textureView)->lpVtbl->Release(*textureView);
*textureView = NULL;
tex->lpVtbl->Release(tex);
return E_UNEXPECTED;
}
if ( arraySize > 1 )
{
const uint8_t* pSrcBits = bitData;
const uint8_t* pEndBits = bitData + bitSize;
for( UINT item = 0; item < arraySize; ++item )
{
if ( (pSrcBits + numBytes) > pEndBits )
{
(*textureView)->lpVtbl->Release(*textureView);
*textureView = NULL;
tex->lpVtbl->Release(tex);
return HRESULT_FROM_WIN32( ERROR_HANDLE_EOF );
}
UINT res = item * mipLevels;
d3dContext->lpVtbl->UpdateSubresource(d3dContext, tex, res, NULL, pSrcBits, (UINT)rowBytes, (UINT)numBytes );
pSrcBits += numBytes;
}
}
else
{
d3dContext->lpVtbl->UpdateSubresource(d3dContext, tex, 0, NULL, bitData, (UINT)rowBytes, (UINT)numBytes );
}
d3dContext->lpVtbl->GenerateMips(d3dContext, *textureView );
if ( texture )
{
*texture = (ID3D11Resource*)tex;
}
else
{
tex->lpVtbl->Release(tex);
}
}
}
else
{
// Create the texture
D3D11_SUBRESOURCE_DATA* initData = malloc(sizeof(D3D11_SUBRESOURCE_DATA) * mipCount * arraySize);
if ( !initData )
{
return E_OUTOFMEMORY;
}
size_t skipMip = 0;
size_t twidth = 0;
size_t theight = 0;
size_t tdepth = 0;
hr = FillInitData( width, height, depth, mipCount, arraySize, format, maxsize, bitSize, bitData,
&twidth, &theight, &tdepth, &skipMip, initData);
if ( SUCCEEDED(hr) )
{
hr = CreateD3DResources( d3dDevice, resDim, twidth, theight, tdepth, mipCount - skipMip, arraySize,
format, usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
isCubeMap, initData, texture, textureView );
if ( FAILED(hr) && !maxsize && (mipCount > 1) )
{
// Retry with a maxsize determined by feature level
switch( d3dDevice->lpVtbl->GetFeatureLevel(d3dDevice) )
{
case D3D_FEATURE_LEVEL_9_1:
case D3D_FEATURE_LEVEL_9_2:
if ( isCubeMap )
{
maxsize = 512 /*D3D_FL9_1_REQ_TEXTURECUBE_DIMENSION*/;
}
else
{
maxsize = (resDim == D3D11_RESOURCE_DIMENSION_TEXTURE3D)
? 256 /*D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 2048 /*D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
}
break;
case D3D_FEATURE_LEVEL_9_3:
maxsize = (resDim == D3D11_RESOURCE_DIMENSION_TEXTURE3D)
? 256 /*D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 4096 /*D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
default: // D3D_FEATURE_LEVEL_10_0 & D3D_FEATURE_LEVEL_10_1
maxsize = (resDim == D3D11_RESOURCE_DIMENSION_TEXTURE3D)
? 2048 /*D3D10_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 8192 /*D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
}
hr = FillInitData( width, height, depth, mipCount, arraySize, format, maxsize, bitSize, bitData,
&twidth, &theight, &tdepth, &skipMip, initData );
if ( SUCCEEDED(hr) )
{
hr = CreateD3DResources( d3dDevice, resDim, twidth, theight, tdepth, mipCount - skipMip, arraySize,
format, usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
isCubeMap, initData, texture, textureView );
}
}
}
free(initData);
}
return hr;
}
//--------------------------------------------------------------------------------------
static DDS_ALPHA_MODE GetAlphaMode( const DDS_HEADER* header )
{
if ( header->ddspf.flags & DDS_FOURCC )
{
if ( MAKEFOURCC( 'D', 'X', '1', '0' ) == header->ddspf.fourCC )
{
const DDS_HEADER_DXT10* d3d10ext = (const DDS_HEADER_DXT10*)( (const char*)header + sizeof(DDS_HEADER) );
DDS_ALPHA_MODE mode = (DDS_ALPHA_MODE)( d3d10ext->miscFlags2 & DDS_MISC_FLAGS2_ALPHA_MODE_MASK );
switch( mode )
{
case DDS_ALPHA_MODE_STRAIGHT:
case DDS_ALPHA_MODE_PREMULTIPLIED:
case DDS_ALPHA_MODE_OPAQUE:
case DDS_ALPHA_MODE_CUSTOM:
return mode;
}
}
else if ( ( MAKEFOURCC( 'D', 'X', 'T', '2' ) == header->ddspf.fourCC )
|| ( MAKEFOURCC( 'D', 'X', 'T', '4' ) == header->ddspf.fourCC ) )
{
return DDS_ALPHA_MODE_PREMULTIPLIED;
}
}
return DDS_ALPHA_MODE_UNKNOWN;
}
//--------------------------------------------------------------------------------------
HRESULT CreateDDSTextureFromMemory( ID3D11Device* d3dDevice,
const uint8_t* ddsData,
size_t ddsDataSize,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromMemoryExMipMap( d3dDevice, NULL, ddsData, ddsDataSize, maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0, FALSE,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromMemoryMipMap( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const uint8_t* ddsData,
size_t ddsDataSize,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromMemoryExMipMap( d3dDevice, d3dContext, ddsData, ddsDataSize, maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0, FALSE,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromMemoryEx( ID3D11Device* d3dDevice,
const uint8_t* ddsData,
size_t ddsDataSize,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromMemoryExMipMap( d3dDevice, NULL, ddsData, ddsDataSize, maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromMemoryExMipMap( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const uint8_t* ddsData,
size_t ddsDataSize,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
DDS_ALPHA_MODE* alphaMode )
{
if ( texture )
{
*texture = NULL;
}
if ( textureView )
{
*textureView = NULL;
}
if ( alphaMode )
{
*alphaMode = DDS_ALPHA_MODE_UNKNOWN;
}
if (!d3dDevice || !ddsData || (!texture && !textureView))
{
return E_INVALIDARG;
}
// Validate DDS file in memory
if (ddsDataSize < (sizeof(uint32_t) + sizeof(DDS_HEADER)))
{
return E_FAIL;
}
uint32_t dwMagicNumber = *( const uint32_t* )( ddsData );
if (dwMagicNumber != DDS_MAGIC)
{
return E_FAIL;
}
const DDS_HEADER* header = (const DDS_HEADER*)( ddsData + sizeof( uint32_t ) );
// Verify header to validate DDS file
if (header->size != sizeof(DDS_HEADER) ||
header->ddspf.size != sizeof(DDS_PIXELFORMAT))
{
return E_FAIL;
}
// Check for DX10 extension
BOOL bDXT10Header = FALSE;
if ((header->ddspf.flags & DDS_FOURCC) &&
(MAKEFOURCC( 'D', 'X', '1', '0' ) == header->ddspf.fourCC) )
{
// Must be long enough for both headers and magic value
if (ddsDataSize < (sizeof(DDS_HEADER) + sizeof(uint32_t) + sizeof(DDS_HEADER_DXT10)))
{
return E_FAIL;
}
bDXT10Header = TRUE;
}
ptrdiff_t offset = sizeof( uint32_t )
+ sizeof( DDS_HEADER )
+ (bDXT10Header ? sizeof( DDS_HEADER_DXT10 ) : 0);
HRESULT hr = CreateTextureFromDDS( d3dDevice, d3dContext, header,
ddsData + offset, ddsDataSize - offset, maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
texture, textureView );
if ( SUCCEEDED(hr) )
{
if ( alphaMode )
*alphaMode = GetAlphaMode( header );
}
return hr;
}
//--------------------------------------------------------------------------------------
HRESULT CreateDDSTextureFromFile( ID3D11Device* d3dDevice,
const wchar_t* fileName,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromFileExMipMap( d3dDevice, NULL, fileName, maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0, FALSE,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromFileMipMap( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const wchar_t* fileName,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromFileExMipMap( d3dDevice, d3dContext, fileName, maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0, FALSE,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromFileEx( ID3D11Device* d3dDevice,
const wchar_t* fileName,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
DDS_ALPHA_MODE* alphaMode )
{
return CreateDDSTextureFromFileExMipMap( d3dDevice, NULL, fileName, maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
texture, textureView, alphaMode );
}
HRESULT CreateDDSTextureFromFileExMipMap( ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const wchar_t* fileName,
size_t maxsize,
D3D11_USAGE usage,
unsigned int bindFlags,
unsigned int cpuAccessFlags,
unsigned int miscFlags,
BOOL forceSRGB,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
DDS_ALPHA_MODE* alphaMode )
{
if ( texture )
{
*texture = NULL;
}
if ( textureView )
{
*textureView = NULL;
}
if ( alphaMode )
{
*alphaMode = DDS_ALPHA_MODE_UNKNOWN;
}
if (!d3dDevice || !fileName || (!texture && !textureView))
{
return E_INVALIDARG;
}
DDS_HEADER* header = NULL;
uint8_t* bitData = NULL;
size_t bitSize = 0;
uint8_t* ddsData;
HRESULT hr = LoadTextureDataFromFile( fileName,
&ddsData,
&header,
&bitData,
&bitSize
);
if (FAILED(hr))
{
free(ddsData);
return hr;
}
hr = CreateTextureFromDDS( d3dDevice, d3dContext, header,
bitData, bitSize, maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags, forceSRGB,
texture, textureView );
if ( SUCCEEDED(hr) )
{
#if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
if (texture != 0 || textureView != 0)
{
CHAR strFileA[MAX_PATH];
int result = WideCharToMultiByte( CP_ACP,
WC_NO_BEST_FIT_CHARS,
fileName,
-1,
strFileA,
MAX_PATH,
NULL,
FALSE
);
if ( result > 0 )
{
const CHAR* pstrName = strrchr( strFileA, '\\' );
if (!pstrName)
{
pstrName = strFileA;
}
else
{
pstrName++;
}
if (texture != 0 && *texture != 0)
{
(*texture)->lpVtbl->SetPrivateData(*texture, &WKPDID_D3DDebugObjectName,
(UINT)strnlen_s(pstrName, MAX_PATH),
pstrName
);
}
if (textureView != 0 && *textureView != 0 )
{
(*textureView)->lpVtbl->SetPrivateData(*textureView, &WKPDID_D3DDebugObjectName,
(UINT)strnlen_s(pstrName, MAX_PATH),
pstrName
);
}
}
}
#endif
if ( alphaMode )
*alphaMode = GetAlphaMode( header );
}
free(ddsData);
return hr;
}