in DDSTextureLoader/DDSTextureLoader11.cpp [1275:1644]
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;
}