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DirectXTex/DDSTextureLoader/DDSTextureLoader11.cpp
Chuck Walbourn 5f22c7cc39 NVTT 1.x wrote L8/L16 as RGB instead of LUMINANCE
2021-04-02 17:08:56 -07:00

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//--------------------------------------------------------------------------------------
// File: DDSTextureLoader11.cpp
//
// Functions for loading a DDS texture and creating a Direct3D 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.
//
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
// http://go.microsoft.com/fwlink/?LinkId=248929
//--------------------------------------------------------------------------------------
#include "DDSTextureLoader11.h"
#include <algorithm>
#include <cassert>
#include <memory>
#include <new>
#ifdef __clang__
#pragma clang diagnostic ignored "-Wcovered-switch-default"
#pragma clang diagnostic ignored "-Wswitch-enum"
#endif
using namespace DirectX;
//--------------------------------------------------------------------------------------
// 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 "
struct DDS_PIXELFORMAT
{
uint32_t size;
uint32_t flags;
uint32_t fourCC;
uint32_t RGBBitCount;
uint32_t RBitMask;
uint32_t GBitMask;
uint32_t BBitMask;
uint32_t ABitMask;
};
#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_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,
};
struct DDS_HEADER
{
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;
};
struct DDS_HEADER_DXT10
{
DXGI_FORMAT dxgiFormat;
uint32_t resourceDimension;
uint32_t miscFlag; // see D3D11_RESOURCE_MISC_FLAG
uint32_t arraySize;
uint32_t miscFlags2;
};
#pragma pack(pop)
//--------------------------------------------------------------------------------------
namespace
{
struct handle_closer { void operator()(HANDLE h) noexcept { if (h) CloseHandle(h); } };
using ScopedHandle = std::unique_ptr<void, handle_closer>;
inline HANDLE safe_handle(HANDLE h) noexcept { return (h == INVALID_HANDLE_VALUE) ? nullptr : h; }
template<UINT TNameLength>
inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_ const char (&name)[TNameLength]) noexcept
{
#if defined(_DEBUG) || defined(PROFILE)
resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name);
#else
UNREFERENCED_PARAMETER(resource);
UNREFERENCED_PARAMETER(name);
#endif
}
//--------------------------------------------------------------------------------------
HRESULT LoadTextureDataFromMemory(
_In_reads_(ddsDataSize) const uint8_t* ddsData,
size_t ddsDataSize,
const DDS_HEADER** header,
const uint8_t** bitData,
size_t* bitSize) noexcept
{
if (!header || !bitData || !bitSize)
{
return E_POINTER;
}
*bitSize = 0;
if (ddsDataSize > UINT32_MAX)
{
return E_FAIL;
}
if (ddsDataSize < (sizeof(uint32_t) + sizeof(DDS_HEADER)))
{
return E_FAIL;
}
// DDS files always start with the same magic number ("DDS ")
auto dwMagicNumber = *reinterpret_cast<const uint32_t*>(ddsData);
if (dwMagicNumber != DDS_MAGIC)
{
return E_FAIL;
}
auto hdr = reinterpret_cast<const DDS_HEADER*>(ddsData + sizeof(uint32_t));
// Verify header to validate DDS file
if (hdr->size != sizeof(DDS_HEADER) ||
hdr->ddspf.size != sizeof(DDS_PIXELFORMAT))
{
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 (ddsDataSize < (sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10)))
{
return E_FAIL;
}
bDXT10Header = true;
}
// setup the pointers in the process request
*header = hdr;
auto offset = sizeof(uint32_t)
+ sizeof(DDS_HEADER)
+ (bDXT10Header ? sizeof(DDS_HEADER_DXT10) : 0);
*bitData = ddsData + offset;
*bitSize = ddsDataSize - offset;
return S_OK;
}
//--------------------------------------------------------------------------------------
HRESULT LoadTextureDataFromFile(
_In_z_ const wchar_t* fileName,
std::unique_ptr<uint8_t[]>& ddsData,
const DDS_HEADER** header,
const uint8_t** bitData,
size_t* bitSize) noexcept
{
if (!header || !bitData || !bitSize)
{
return E_POINTER;
}
*bitSize = 0;
// open the file
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
ScopedHandle hFile(safe_handle(CreateFile2(fileName,
GENERIC_READ,
FILE_SHARE_READ,
OPEN_EXISTING,
nullptr)));
#else
ScopedHandle hFile(safe_handle(CreateFileW(fileName,
GENERIC_READ,
FILE_SHARE_READ,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
nullptr)));
#endif
if (!hFile)
{
return HRESULT_FROM_WIN32(GetLastError());
}
// Get the file size
FILE_STANDARD_INFO fileInfo;
if (!GetFileInformationByHandleEx(hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo)))
{
return HRESULT_FROM_WIN32(GetLastError());
}
// File is too big for 32-bit allocation, so reject read
if (fileInfo.EndOfFile.HighPart > 0)
{
return E_FAIL;
}
// Need at least enough data to fill the header and magic number to be a valid DDS
if (fileInfo.EndOfFile.LowPart < (sizeof(uint32_t) + sizeof(DDS_HEADER)))
{
return E_FAIL;
}
// create enough space for the file data
ddsData.reset(new (std::nothrow) uint8_t[fileInfo.EndOfFile.LowPart]);
if (!ddsData)
{
return E_OUTOFMEMORY;
}
// read the data in
DWORD bytesRead = 0;
if (!ReadFile(hFile.get(),
ddsData.get(),
fileInfo.EndOfFile.LowPart,
&bytesRead,
nullptr
))
{
ddsData.reset();
return HRESULT_FROM_WIN32(GetLastError());
}
if (bytesRead < fileInfo.EndOfFile.LowPart)
{
ddsData.reset();
return E_FAIL;
}
// DDS files always start with the same magic number ("DDS ")
auto dwMagicNumber = *reinterpret_cast<const uint32_t*>(ddsData.get());
if (dwMagicNumber != DDS_MAGIC)
{
ddsData.reset();
return E_FAIL;
}
auto hdr = reinterpret_cast<const DDS_HEADER*>(ddsData.get() + sizeof(uint32_t));
// Verify header to validate DDS file
if (hdr->size != sizeof(DDS_HEADER) ||
hdr->ddspf.size != sizeof(DDS_PIXELFORMAT))
{
ddsData.reset();
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 (fileInfo.EndOfFile.LowPart < (sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10)))
{
ddsData.reset();
return E_FAIL;
}
bDXT10Header = true;
}
// setup the pointers in the process request
*header = hdr;
auto offset = sizeof(uint32_t) + sizeof(DDS_HEADER)
+ (bDXT10Header ? sizeof(DDS_HEADER_DXT10) : 0);
*bitData = ddsData.get() + offset;
*bitSize = fileInfo.EndOfFile.LowPart - offset;
return S_OK;
}
//--------------------------------------------------------------------------------------
// Return the BPP for a particular format
//--------------------------------------------------------------------------------------
size_t BitsPerPixel(_In_ DXGI_FORMAT fmt) noexcept
{
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_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:
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;
default:
return 0;
}
}
//--------------------------------------------------------------------------------------
// Get surface information for a particular format
//--------------------------------------------------------------------------------------
HRESULT GetSurfaceInfo(
_In_ size_t width,
_In_ size_t height,
_In_ DXGI_FORMAT fmt,
size_t* outNumBytes,
_Out_opt_ size_t* outRowBytes,
_Out_opt_ size_t* outNumRows) noexcept
{
uint64_t numBytes = 0;
uint64_t rowBytes = 0;
uint64_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;
default:
break;
}
if (bc)
{
uint64_t numBlocksWide = 0;
if (width > 0)
{
numBlocksWide = std::max<uint64_t>(1u, (uint64_t(width) + 3u) / 4u);
}
uint64_t numBlocksHigh = 0;
if (height > 0)
{
numBlocksHigh = std::max<uint64_t>(1u, (uint64_t(height) + 3u) / 4u);
}
rowBytes = numBlocksWide * bpe;
numRows = numBlocksHigh;
numBytes = rowBytes * numBlocksHigh;
}
else if (packed)
{
rowBytes = ((uint64_t(width) + 1u) >> 1) * bpe;
numRows = uint64_t(height);
numBytes = rowBytes * height;
}
else if (fmt == DXGI_FORMAT_NV11)
{
rowBytes = ((uint64_t(width) + 3u) >> 2) * 4u;
numRows = uint64_t(height) * 2u; // Direct3D makes this simplifying assumption, although it is larger than the 4:1:1 data
numBytes = rowBytes * numRows;
}
else if (planar)
{
rowBytes = ((uint64_t(width) + 1u) >> 1) * bpe;
numBytes = (rowBytes * uint64_t(height)) + ((rowBytes * uint64_t(height) + 1u) >> 1);
numRows = height + ((uint64_t(height) + 1u) >> 1);
}
else
{
size_t bpp = BitsPerPixel(fmt);
if (!bpp)
return E_INVALIDARG;
rowBytes = (uint64_t(width) * bpp + 7u) / 8u; // round up to nearest byte
numRows = uint64_t(height);
numBytes = rowBytes * height;
}
#if defined(_M_IX86) || defined(_M_ARM) || defined(_M_HYBRID_X86_ARM64)
static_assert(sizeof(size_t) == 4, "Not a 32-bit platform!");
if (numBytes > UINT32_MAX || rowBytes > UINT32_MAX || numRows > UINT32_MAX)
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
#else
static_assert(sizeof(size_t) == 8, "Not a 64-bit platform!");
#endif
if (outNumBytes)
{
*outNumBytes = static_cast<size_t>(numBytes);
}
if (outRowBytes)
{
*outRowBytes = static_cast<size_t>(rowBytes);
}
if (outNumRows)
{
*outNumRows = static_cast<size_t>(numRows);
}
return S_OK;
}
//--------------------------------------------------------------------------------------
#define ISBITMASK( r,g,b,a ) ( ddpf.RBitMask == r && ddpf.GBitMask == g && ddpf.BBitMask == b && ddpf.ABitMask == a )
DXGI_FORMAT GetDXGIFormat(const DDS_PIXELFORMAT& ddpf) noexcept
{
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, 0))
{
return DXGI_FORMAT_B8G8R8X8_UNORM;
}
// No DXGI format maps to ISBITMASK(0x000000ff,0x0000ff00,0x00ff0000,0) 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, 0, 0))
{
return DXGI_FORMAT_R16G16_UNORM;
}
if (ISBITMASK(0xffffffff, 0, 0, 0))
{
// 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, 0))
{
return DXGI_FORMAT_B5G6R5_UNORM;
}
// No DXGI format maps to ISBITMASK(0x7c00,0x03e0,0x001f,0) aka D3DFMT_X1R5G5B5
if (ISBITMASK(0x0f00, 0x00f0, 0x000f, 0xf000))
{
return DXGI_FORMAT_B4G4R4A4_UNORM;
}
// NVTT versions 1.x wrote this as RGB instead of LUMINANCE
if (ISBITMASK(0x00ff, 0, 0, 0xff00))
{
return DXGI_FORMAT_R8G8_UNORM;
}
if (ISBITMASK(0xffff, 0, 0, 0))
{
return DXGI_FORMAT_R16_UNORM;
}
// No DXGI format maps to ISBITMASK(0x0f00,0x00f0,0x000f,0) aka D3DFMT_X4R4G4B4
// No 3:3:2:8 or paletted DXGI formats aka D3DFMT_A8R3G3B2, D3DFMT_A8P8, etc.
break;
case 8:
// NVTT versions 1.x wrote this as RGB instead of LUMINANCE
if (ISBITMASK(0xff, 0, 0, 0))
{
return DXGI_FORMAT_R8_UNORM;
}
// No 3:3:2 or paletted DXGI formats aka D3DFMT_R3G3B2, D3DFMT_P8
break;
}
}
else if (ddpf.flags & DDS_LUMINANCE)
{
switch (ddpf.RGBBitCount)
{
case 16:
if (ISBITMASK(0xffff, 0, 0, 0))
{
return DXGI_FORMAT_R16_UNORM; // D3DX10/11 writes this out as DX10 extension
}
if (ISBITMASK(0x00ff, 0, 0, 0xff00))
{
return DXGI_FORMAT_R8G8_UNORM; // D3DX10/11 writes this out as DX10 extension
}
break;
case 8:
if (ISBITMASK(0xff, 0, 0, 0))
{
return DXGI_FORMAT_R8_UNORM; // D3DX10/11 writes this out as DX10 extension
}
// No DXGI format maps to ISBITMASK(0x0f,0,0,0xf0) aka D3DFMT_A4L4
if (ISBITMASK(0x00ff, 0, 0, 0xff00))
{
return DXGI_FORMAT_R8G8_UNORM; // Some DDS writers assume the bitcount should be 8 instead of 16
}
break;
}
}
else if (ddpf.flags & DDS_ALPHA)
{
if (8 == ddpf.RGBBitCount)
{
return DXGI_FORMAT_A8_UNORM;
}
}
else if (ddpf.flags & DDS_BUMPDUDV)
{
switch (ddpf.RGBBitCount)
{
case 32:
if (ISBITMASK(0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000))
{
return DXGI_FORMAT_R8G8B8A8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
if (ISBITMASK(0x0000ffff, 0xffff0000, 0, 0))
{
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
break;
case 16:
if (ISBITMASK(0x00ff, 0xff00, 0, 0))
{
return DXGI_FORMAT_R8G8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
break;
}
// No DXGI format maps to DDPF_BUMPLUMINANCE aka D3DFMT_L6V5U5, D3DFMT_X8L8V8U8
}
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;
// No DXGI format maps to D3DFMT_CxV8U8
}
}
return DXGI_FORMAT_UNKNOWN;
}
#undef ISBITMASK
//--------------------------------------------------------------------------------------
DXGI_FORMAT MakeSRGB(_In_ DXGI_FORMAT format) noexcept
{
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;
}
}
//--------------------------------------------------------------------------------------
HRESULT FillInitData(
_In_ size_t width,
_In_ size_t height,
_In_ size_t depth,
_In_ size_t mipCount,
_In_ size_t arraySize,
_In_ DXGI_FORMAT format,
_In_ size_t maxsize,
_In_ size_t bitSize,
_In_reads_bytes_(bitSize) const uint8_t* bitData,
_Out_ size_t& twidth,
_Out_ size_t& theight,
_Out_ size_t& tdepth,
_Out_ size_t& skipMip,
_Out_writes_(mipCount*arraySize) D3D11_SUBRESOURCE_DATA* initData) noexcept
{
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++)
{
HRESULT hr = GetSurfaceInfo(w, h, format, &NumBytes, &RowBytes, nullptr);
if (FAILED(hr))
return hr;
if (NumBytes > UINT32_MAX || RowBytes > UINT32_MAX)
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
if ((mipCount <= 1) || !maxsize || (w <= maxsize && h <= maxsize && d <= maxsize))
{
if (!twidth)
{
twidth = w;
theight = h;
tdepth = d;
}
assert(index < mipCount * arraySize);
_Analysis_assume_(index < mipCount * arraySize);
initData[index].pSysMem = pSrcBits;
initData[index].SysMemPitch = static_cast<UINT>(RowBytes);
initData[index].SysMemSlicePitch = static_cast<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;
}
//--------------------------------------------------------------------------------------
HRESULT CreateD3DResources(
_In_ ID3D11Device* d3dDevice,
_In_ uint32_t resDim,
_In_ size_t width,
_In_ size_t height,
_In_ size_t depth,
_In_ size_t mipCount,
_In_ size_t arraySize,
_In_ DXGI_FORMAT format,
_In_ D3D11_USAGE usage,
_In_ unsigned int bindFlags,
_In_ unsigned int cpuAccessFlags,
_In_ unsigned int miscFlags,
_In_ bool forceSRGB,
_In_ bool isCubeMap,
_In_reads_opt_(mipCount*arraySize) D3D11_SUBRESOURCE_DATA* initData,
_Outptr_opt_ ID3D11Resource** texture,
_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept
{
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 = static_cast<UINT>(width);
desc.MipLevels = static_cast<UINT>(mipCount);
desc.ArraySize = static_cast<UINT>(arraySize);
desc.Format = format;
desc.Usage = usage;
desc.BindFlags = bindFlags;
desc.CPUAccessFlags = cpuAccessFlags;
desc.MiscFlags = miscFlags & ~static_cast<unsigned int>(D3D11_RESOURCE_MISC_TEXTURECUBE);
ID3D11Texture1D* tex = nullptr;
hr = d3dDevice->CreateTexture1D(&desc,
initData,
&tex
);
if (SUCCEEDED(hr) && tex)
{
if (textureView)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc = {};
SRVDesc.Format = format;
if (arraySize > 1)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1DARRAY;
SRVDesc.Texture1DArray.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
SRVDesc.Texture1DArray.ArraySize = static_cast<UINT>(arraySize);
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE1D;
SRVDesc.Texture1D.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
}
hr = d3dDevice->CreateShaderResourceView(tex,
&SRVDesc,
textureView
);
if (FAILED(hr))
{
tex->Release();
return hr;
}
}
if (texture)
{
*texture = tex;
}
else
{
SetDebugObjectName(tex, "DDSTextureLoader");
tex->Release();
}
}
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE2D:
{
D3D11_TEXTURE2D_DESC desc;
desc.Width = static_cast<UINT>(width);
desc.Height = static_cast<UINT>(height);
desc.MipLevels = static_cast<UINT>(mipCount);
desc.ArraySize = static_cast<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 & ~static_cast<unsigned int>(D3D11_RESOURCE_MISC_TEXTURECUBE);
}
ID3D11Texture2D* tex = nullptr;
hr = d3dDevice->CreateTexture2D(&desc,
initData,
&tex
);
if (SUCCEEDED(hr) && tex)
{
if (textureView)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc = {};
SRVDesc.Format = format;
if (isCubeMap)
{
if (arraySize > 6)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBEARRAY;
SRVDesc.TextureCubeArray.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
// Earlier we set arraySize to (NumCubes * 6)
SRVDesc.TextureCubeArray.NumCubes = static_cast<UINT>(arraySize / 6);
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURECUBE;
SRVDesc.TextureCube.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
}
}
else if (arraySize > 1)
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DARRAY;
SRVDesc.Texture2DArray.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
SRVDesc.Texture2DArray.ArraySize = static_cast<UINT>(arraySize);
}
else
{
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
SRVDesc.Texture2D.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
}
hr = d3dDevice->CreateShaderResourceView(tex,
&SRVDesc,
textureView
);
if (FAILED(hr))
{
tex->Release();
return hr;
}
}
if (texture)
{
*texture = tex;
}
else
{
SetDebugObjectName(tex, "DDSTextureLoader");
tex->Release();
}
}
}
break;
case D3D11_RESOURCE_DIMENSION_TEXTURE3D:
{
D3D11_TEXTURE3D_DESC desc;
desc.Width = static_cast<UINT>(width);
desc.Height = static_cast<UINT>(height);
desc.Depth = static_cast<UINT>(depth);
desc.MipLevels = static_cast<UINT>(mipCount);
desc.Format = format;
desc.Usage = usage;
desc.BindFlags = bindFlags;
desc.CPUAccessFlags = cpuAccessFlags;
desc.MiscFlags = miscFlags & ~static_cast<unsigned int>(D3D11_RESOURCE_MISC_TEXTURECUBE);
ID3D11Texture3D* tex = nullptr;
hr = d3dDevice->CreateTexture3D(&desc,
initData,
&tex
);
if (SUCCEEDED(hr) && tex)
{
if (textureView)
{
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc = {};
SRVDesc.Format = format;
SRVDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE3D;
SRVDesc.Texture3D.MipLevels = (!mipCount) ? UINT(-1) : desc.MipLevels;
hr = d3dDevice->CreateShaderResourceView(tex,
&SRVDesc,
textureView
);
if (FAILED(hr))
{
tex->Release();
return hr;
}
}
if (texture)
{
*texture = tex;
}
else
{
SetDebugObjectName(tex, "DDSTextureLoader");
tex->Release();
}
}
}
break;
}
return hr;
}
//--------------------------------------------------------------------------------------
HRESULT CreateTextureFromDDS(
_In_ ID3D11Device* d3dDevice,
_In_opt_ ID3D11DeviceContext* d3dContext,
_In_ const DDS_HEADER* header,
_In_reads_bytes_(bitSize) const uint8_t* bitData,
_In_ size_t bitSize,
_In_ size_t maxsize,
_In_ D3D11_USAGE usage,
_In_ unsigned int bindFlags,
_In_ unsigned int cpuAccessFlags,
_In_ unsigned int miscFlags,
_In_ bool forceSRGB,
_Outptr_opt_ ID3D11Resource** texture,
_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept
{
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))
{
auto d3d10ext = reinterpret_cast<const DDS_HEADER_DXT10*>(reinterpret_cast<const uint8_t*>(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
}
assert(BitsPerPixel(format) != 0);
}
// 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 && textureView) // 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->CheckFormatSupport(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->GetFeatureLevel() >= D3D_FEATURE_LEVEL_10_0))
{
autogen = true;
}
}
}
if (autogen)
{
// Create texture with auto-generated mipmaps
ID3D11Resource* tex = nullptr;
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,
nullptr,
&tex, textureView);
if (SUCCEEDED(hr))
{
size_t numBytes = 0;
size_t rowBytes = 0;
hr = GetSurfaceInfo(width, height, format, &numBytes, &rowBytes, nullptr);
if (FAILED(hr))
return hr;
if (numBytes > bitSize)
{
(*textureView)->Release();
*textureView = nullptr;
tex->Release();
return HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
if (numBytes > UINT32_MAX || rowBytes > UINT32_MAX)
return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
D3D11_SHADER_RESOURCE_VIEW_DESC desc;
(*textureView)->GetDesc(&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)->Release();
*textureView = nullptr;
tex->Release();
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)->Release();
*textureView = nullptr;
tex->Release();
return HRESULT_FROM_WIN32(ERROR_HANDLE_EOF);
}
UINT res = D3D11CalcSubresource(0, item, mipLevels);
d3dContext->UpdateSubresource(tex, res, nullptr, pSrcBits, static_cast<UINT>(rowBytes), static_cast<UINT>(numBytes));
pSrcBits += numBytes;
}
}
else
{
d3dContext->UpdateSubresource(tex, 0, nullptr, bitData, static_cast<UINT>(rowBytes), static_cast<UINT>(numBytes));
}
d3dContext->GenerateMips(*textureView);
if (texture)
{
*texture = tex;
}
else
{
tex->Release();
}
}
}
else
{
// Create the texture
std::unique_ptr<D3D11_SUBRESOURCE_DATA[]> initData(new (std::nothrow) 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.get());
if (SUCCEEDED(hr))
{
hr = CreateD3DResources(d3dDevice,
resDim, twidth, theight, tdepth, mipCount - skipMip, arraySize,
format,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
isCubeMap,
initData.get(),
texture, textureView);
if (FAILED(hr) && !maxsize && (mipCount > 1))
{
// Retry with a maxsize determined by feature level
switch (d3dDevice->GetFeatureLevel())
{
case D3D_FEATURE_LEVEL_9_1:
case D3D_FEATURE_LEVEL_9_2:
if (isCubeMap)
{
maxsize = 512u /*D3D_FL9_1_REQ_TEXTURECUBE_DIMENSION*/;
}
else
{
maxsize = (resDim == D3D11_RESOURCE_DIMENSION_TEXTURE3D)
? 256u /*D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 2048u /*D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
}
break;
case D3D_FEATURE_LEVEL_9_3:
maxsize = (resDim == D3D11_RESOURCE_DIMENSION_TEXTURE3D)
? 256u /*D3D_FL9_1_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 4096u /*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)
? 2048u /*D3D10_REQ_TEXTURE3D_U_V_OR_W_DIMENSION*/
: 8192u /*D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION*/;
break;
}
hr = FillInitData(width, height, depth, mipCount, arraySize, format, maxsize, bitSize, bitData,
twidth, theight, tdepth, skipMip, initData.get());
if (SUCCEEDED(hr))
{
hr = CreateD3DResources(d3dDevice,
resDim, twidth, theight, tdepth, mipCount - skipMip, arraySize,
format,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
isCubeMap,
initData.get(),
texture, textureView);
}
}
}
}
return hr;
}
//--------------------------------------------------------------------------------------
DDS_ALPHA_MODE GetAlphaMode(_In_ const DDS_HEADER* header) noexcept
{
if (header->ddspf.flags & DDS_FOURCC)
{
if (MAKEFOURCC('D', 'X', '1', '0') == header->ddspf.fourCC)
{
auto d3d10ext = reinterpret_cast<const DDS_HEADER_DXT10*>(reinterpret_cast<const uint8_t*>(header) + sizeof(DDS_HEADER));
auto mode = static_cast<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;
case DDS_ALPHA_MODE_UNKNOWN:
default:
break;
}
}
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;
}
//--------------------------------------------------------------------------------------
void SetDebugTextureInfo(
_In_z_ const wchar_t* fileName,
_In_opt_ ID3D11Resource** texture,
_In_opt_ ID3D11ShaderResourceView** textureView) noexcept
{
#if !defined(NO_D3D11_DEBUG_NAME) && ( defined(_DEBUG) || defined(PROFILE) )
if (texture || textureView)
{
CHAR strFileA[MAX_PATH];
int result = WideCharToMultiByte(CP_UTF8,
WC_NO_BEST_FIT_CHARS,
fileName,
-1,
strFileA,
MAX_PATH,
nullptr,
nullptr
);
if (result > 0)
{
const char* pstrName = strrchr(strFileA, '\\');
if (!pstrName)
{
pstrName = strFileA;
}
else
{
pstrName++;
}
if (texture && *texture)
{
(*texture)->SetPrivateData(WKPDID_D3DDebugObjectName,
static_cast<UINT>(strnlen_s(pstrName, MAX_PATH)),
pstrName
);
}
if (textureView && *textureView)
{
(*textureView)->SetPrivateData(WKPDID_D3DDebugObjectName,
static_cast<UINT>(strnlen_s(pstrName, MAX_PATH)),
pstrName
);
}
}
}
#else
UNREFERENCED_PARAMETER(fileName);
UNREFERENCED_PARAMETER(texture);
UNREFERENCED_PARAMETER(textureView);
#endif
}
} // anonymous namespace
//--------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromMemory(
ID3D11Device* d3dDevice,
const uint8_t* ddsData,
size_t ddsDataSize,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode) noexcept
{
return CreateDDSTextureFromMemoryEx(d3dDevice, nullptr,
ddsData, ddsDataSize,
maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0,
false,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromMemory(
ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const uint8_t* ddsData,
size_t ddsDataSize,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode) noexcept
{
return CreateDDSTextureFromMemoryEx(d3dDevice, d3dContext,
ddsData, ddsDataSize,
maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0,
false,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::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) noexcept
{
return CreateDDSTextureFromMemoryEx(d3dDevice, nullptr,
ddsData, ddsDataSize,
maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromMemoryEx(
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) noexcept
{
if (texture)
{
*texture = nullptr;
}
if (textureView)
{
*textureView = nullptr;
}
if (alphaMode)
{
*alphaMode = DDS_ALPHA_MODE_UNKNOWN;
}
if (!d3dDevice || !ddsData || (!texture && !textureView))
{
return E_INVALIDARG;
}
if (textureView && !(bindFlags & D3D11_BIND_SHADER_RESOURCE))
{
return E_INVALIDARG;
}
// Validate DDS file in memory
const DDS_HEADER* header = nullptr;
const uint8_t* bitData = nullptr;
size_t bitSize = 0;
HRESULT hr = LoadTextureDataFromMemory(ddsData, ddsDataSize,
&header,
&bitData,
&bitSize
);
if (FAILED(hr))
{
return hr;
}
hr = CreateTextureFromDDS(d3dDevice, d3dContext,
header, bitData, bitSize,
maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
texture, textureView);
if (SUCCEEDED(hr))
{
if (texture && *texture)
{
SetDebugObjectName(*texture, "DDSTextureLoader");
}
if (textureView && *textureView)
{
SetDebugObjectName(*textureView, "DDSTextureLoader");
}
if (alphaMode)
*alphaMode = GetAlphaMode(header);
}
return hr;
}
//--------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromFile(
ID3D11Device* d3dDevice,
const wchar_t* fileName,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode) noexcept
{
return CreateDDSTextureFromFileEx(d3dDevice, nullptr,
fileName, maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0,
false,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromFile(
ID3D11Device* d3dDevice,
ID3D11DeviceContext* d3dContext,
const wchar_t* fileName,
ID3D11Resource** texture,
ID3D11ShaderResourceView** textureView,
size_t maxsize,
DDS_ALPHA_MODE* alphaMode) noexcept
{
return CreateDDSTextureFromFileEx(d3dDevice, d3dContext,
fileName,
maxsize,
D3D11_USAGE_DEFAULT, D3D11_BIND_SHADER_RESOURCE, 0, 0,
false,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::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) noexcept
{
return CreateDDSTextureFromFileEx(d3dDevice, nullptr,
fileName,
maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
texture, textureView, alphaMode);
}
_Use_decl_annotations_
HRESULT DirectX::CreateDDSTextureFromFileEx(
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) noexcept
{
if (texture)
{
*texture = nullptr;
}
if (textureView)
{
*textureView = nullptr;
}
if (alphaMode)
{
*alphaMode = DDS_ALPHA_MODE_UNKNOWN;
}
if (!d3dDevice || !fileName || (!texture && !textureView))
{
return E_INVALIDARG;
}
if (textureView && !(bindFlags & D3D11_BIND_SHADER_RESOURCE))
{
return E_INVALIDARG;
}
const DDS_HEADER* header = nullptr;
const uint8_t* bitData = nullptr;
size_t bitSize = 0;
std::unique_ptr<uint8_t[]> ddsData;
HRESULT hr = LoadTextureDataFromFile(fileName,
ddsData,
&header,
&bitData,
&bitSize
);
if (FAILED(hr))
{
return hr;
}
hr = CreateTextureFromDDS(d3dDevice, d3dContext,
header, bitData, bitSize,
maxsize,
usage, bindFlags, cpuAccessFlags, miscFlags,
forceSRGB,
texture, textureView);
if (SUCCEEDED(hr))
{
SetDebugTextureInfo(fileName, texture, textureView);
if (alphaMode)
*alphaMode = GetAlphaMode(header);
}
return hr;
}
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