//-------------------------------------------------------------------------------------
// Resize image
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Resize( const Image& srcImage, size_t width, size_t height, DWORD filter, ScratchImage& image )
{
if ( width == 0 || height == 0 )
return E_INVALIDARG;
#ifdef _M_X64
if ( (srcImage.width > 0xFFFFFFFF) || (srcImage.height > 0xFFFFFFFF) )
return E_INVALIDARG;
if ( (width > 0xFFFFFFFF) || (height > 0xFFFFFFFF) )
return E_INVALIDARG;
#endif
if ( !srcImage.pixels )
return E_POINTER;
if ( IsCompressed( srcImage.format ) )
{
// We don't support resizing compressed images
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
HRESULT hr = image.Initialize2D( srcImage.format, width, height, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *rimage = image.GetImage( 0, 0, 0 );
if ( !rimage )
return E_POINTER;
if ( _UseWICFiltering( srcImage.format, filter ) )
{
WICPixelFormatGUID pfGUID;
if ( _DXGIToWIC( srcImage.format, pfGUID, true ) )
{
// Case 1: Source format is supported by Windows Imaging Component
hr = _PerformResizeUsingWIC( srcImage, filter, pfGUID, *rimage );
}
else
{
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
hr = _PerformResizeViaF32( srcImage, filter, *rimage );
}
}
else
{
hr = _PerformResizeUsingCustomFilters( srcImage, filter, *rimage );
}
if ( FAILED(hr) )
{
image.Release();
return hr;
}
return S_OK;
}
//-------------------------------------------------------------------------------------
// Compression
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Compress( const Image& srcImage, DXGI_FORMAT format, DWORD compress, float alphaRef, ScratchImage& image )
{
if ( IsCompressed(srcImage.format) || !IsCompressed(format) || IsTypeless(format) )
return E_INVALIDARG;
// Image size must be a multiple of 4 (degenerate cases for mipmaps are allowed)
bool degenerate = false;
size_t width = srcImage.width;
if ( (width % 4) != 0 )
{
if ( width != 1 && width != 2 )
return E_INVALIDARG;
degenerate = true;
}
size_t height = srcImage.height;
if ( (height % 4) != 0 )
{
if ( height != 1 && height != 2 )
return E_INVALIDARG;
degenerate = true;
}
// Create compressed image
HRESULT hr = image.Initialize2D( format, width, height, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *img = image.GetImage( 0, 0, 0 );
if ( !img )
{
image.Release();
return E_POINTER;
}
// Compress single image
if ( (compress & TEX_COMPRESS_PARALLEL) && !degenerate )
{
#ifndef _OPENMP
return E_NOTIMPL;
#else
hr = _CompressBC_Parallel( srcImage, *img, _GetBCFlags( compress ), alphaRef );
#endif // _OPENMP
}
else
{
hr = _CompressBC( srcImage, *img, _GetBCFlags( compress ), alphaRef, degenerate );
}
if ( FAILED(hr) )
image.Release();
return hr;
}
//-------------------------------------------------------------------------------------
// Do conversion, flip/rotate using WIC, conversion cycle
//-------------------------------------------------------------------------------------
static HRESULT _PerformFlipRotateViaF32( _In_ const Image& srcImage, _In_ DWORD flags, _In_ const Image& destImage )
{
if ( !srcImage.pixels || !destImage.pixels )
return E_POINTER;
assert( srcImage.format != DXGI_FORMAT_R32G32B32A32_FLOAT );
assert( srcImage.format == destImage.format );
ScratchImage temp;
HRESULT hr = _ConvertToR32G32B32A32( srcImage, temp );
if ( FAILED(hr) )
return hr;
const Image *tsrc = temp.GetImage( 0, 0, 0 );
if ( !tsrc )
return E_POINTER;
ScratchImage rtemp;
hr = rtemp.Initialize2D( DXGI_FORMAT_R32G32B32A32_FLOAT, destImage.width, destImage.height, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *tdest = rtemp.GetImage( 0, 0, 0 );
if ( !tdest )
return E_POINTER;
hr = _PerformFlipRotateUsingWIC( *tsrc, flags, GUID_WICPixelFormat128bppRGBAFloat, *tdest );
if ( FAILED(hr) )
return hr;
temp.Release();
hr = _ConvertFromR32G32B32A32( *tdest, destImage );
if ( FAILED(hr) )
return hr;
return S_OK;
}
//-------------------------------------------------------------------------------------
// Decompression
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::Decompress(
const Image& cImage,
DXGI_FORMAT format,
ScratchImage& image)
{
if (!IsCompressed(cImage.format) || IsCompressed(format))
return E_INVALIDARG;
if (format == DXGI_FORMAT_UNKNOWN)
{
// Pick a default decompressed format based on BC input format
format = DefaultDecompress(cImage.format);
if (format == DXGI_FORMAT_UNKNOWN)
{
// Input is not a compressed format
return E_INVALIDARG;
}
}
else
{
if (!IsValid(format))
return E_INVALIDARG;
if (IsTypeless(format) || IsPlanar(format) || IsPalettized(format))
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
// Create decompressed image
HRESULT hr = image.Initialize2D(format, cImage.width, cImage.height, 1, 1);
if (FAILED(hr))
return hr;
const Image *img = image.GetImage(0, 0, 0);
if (!img)
{
image.Release();
return E_POINTER;
}
// Decompress single image
hr = DecompressBC(cImage, *img);
if (FAILED(hr))
image.Release();
return hr;
}
//-------------------------------------------------------------------------------------
// Converts to/from a premultiplied alpha version of the texture
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::PremultiplyAlpha(
const Image& srcImage,
DWORD flags,
ScratchImage& image)
{
if (!srcImage.pixels)
return E_POINTER;
if (IsCompressed(srcImage.format)
|| IsPlanar(srcImage.format)
|| IsPalettized(srcImage.format)
|| IsTypeless(srcImage.format)
|| !HasAlpha(srcImage.format))
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
if ((srcImage.width > UINT32_MAX) || (srcImage.height > UINT32_MAX))
return E_INVALIDARG;
HRESULT hr = image.Initialize2D(srcImage.format, srcImage.width, srcImage.height, 1, 1);
if (FAILED(hr))
return hr;
const Image *rimage = image.GetImage(0, 0, 0);
if (!rimage)
{
image.Release();
return E_POINTER;
}
if (flags & TEX_PMALPHA_REVERSE)
{
hr = (flags & TEX_PMALPHA_IGNORE_SRGB) ? DemultiplyAlpha(srcImage, *rimage) : DemultiplyAlphaLinear(srcImage, flags, *rimage);
}
else
{
hr = (flags & TEX_PMALPHA_IGNORE_SRGB) ? PremultiplyAlpha_(srcImage, *rimage) : PremultiplyAlphaLinear(srcImage, flags, *rimage);
}
if (FAILED(hr))
{
image.Release();
return hr;
}
return S_OK;
}
//-------------------------------------------------------------------------------------
// Compression
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::Compress(
const Image& srcImage,
DXGI_FORMAT format,
DWORD compress,
float threshold,
ScratchImage& image)
{
if (IsCompressed(srcImage.format) || !IsCompressed(format))
return E_INVALIDARG;
if (IsTypeless(format)
|| IsTypeless(srcImage.format) || IsPlanar(srcImage.format) || IsPalettized(srcImage.format))
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
// Create compressed image
HRESULT hr = image.Initialize2D(format, srcImage.width, srcImage.height, 1, 1);
if (FAILED(hr))
return hr;
const Image *img = image.GetImage(0, 0, 0);
if (!img)
{
image.Release();
return E_POINTER;
}
// Compress single image
if (compress & TEX_COMPRESS_PARALLEL)
{
#ifndef _OPENMP
return E_NOTIMPL;
#else
hr = CompressBC_Parallel(srcImage, *img, GetBCFlags(compress), GetSRGBFlags(compress), threshold);
#endif // _OPENMP
}
else
{
hr = CompressBC(srcImage, *img, GetBCFlags(compress), GetSRGBFlags(compress), threshold);
}
if (FAILED(hr))
image.Release();
return hr;
}
// Executes the basic game loop.
void Game::Tick()
{
m_timer.Tick([&]()
{
Update(m_timer);
});
Render();
if (m_screenshot)
{
OutputDebugStringA("Saving screenshot...\n");
auto commandQ = m_deviceResources->GetCommandQueue();
DX::ThrowIfFailed(
SaveDDSTextureToFile(commandQ, m_screenshot.Get(),
L"screenshot.dds",
D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_PRESENT)
);
DX::ThrowIfFailed(
SaveWICTextureToFile(commandQ, m_screenshot.Get(),
GUID_ContainerFormatJpeg, L"screenshot.jpg",
D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_PRESENT)
);
ScratchImage image;
DX::ThrowIfFailed(CaptureTexture(commandQ, m_screenshot.Get(), false, image,
D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_PRESENT));
DX::ThrowIfFailed(SaveToDDSFile(image.GetImages(), image.GetImageCount(), image.GetMetadata(), DDS_FLAGS_NONE, L"screenshot2.dds"));
DX::ThrowIfFailed(SaveToWICFile(*image.GetImage(0, 0, 0), WIC_FLAGS_NONE, GUID_ContainerFormatJpeg, L"screenshot2.jpg"));
m_screenshot.Reset();
}
++m_frame;
}
//-------------------------------------------------------------------------------------
// Decompression
//-------------------------------------------------------------------------------------
HRESULT Decompress( const Image& cImage, DXGI_FORMAT format, ScratchImage& image )
{
if ( IsCompressed(format) || IsTypeless(format) )
return E_INVALIDARG;
if ( format == DXGI_FORMAT_UNKNOWN )
{
// Pick a default decompressed format based on BC input format
format = _DefaultDecompress( cImage.format );
if ( format == DXGI_FORMAT_UNKNOWN )
{
// Input is not a compressed format
return E_INVALIDARG;
}
}
else if ( !IsCompressed(cImage.format) || !IsValid(format) )
return E_INVALIDARG;
// Create decompressed image
HRESULT hr = image.Initialize2D( format, cImage.width, cImage.height, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *img = image.GetImage( 0, 0, 0 );
if ( !img )
{
image.Release();
return E_POINTER;
}
// Decompress single image
hr = _DecompressBC( cImage, *img );
if ( FAILED(hr) )
image.Release();
return hr;
}
//-------------------------------------------------------------------------------------
// Converts to a premultiplied alpha version of the texture
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT PremultiplyAlpha( const Image& srcImage, ScratchImage& image )
{
if ( !srcImage.pixels )
return E_POINTER;
if ( IsCompressed(srcImage.format)
|| IsVideo(srcImage.format)
|| IsTypeless(srcImage.format)
|| !HasAlpha(srcImage.format) )
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
#ifdef _M_X64
if ( (srcImage.width > 0xFFFFFFFF) || (srcImage.height > 0xFFFFFFFF) )
return E_INVALIDARG;
#endif
HRESULT hr = image.Initialize2D( srcImage.format, srcImage.width, srcImage.height, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *rimage = image.GetImage( 0, 0, 0 );
if ( !rimage )
{
image.Release();
return E_POINTER;
}
hr = _PremultiplyAlpha( srcImage, *rimage );
if ( FAILED(hr) )
{
image.Release();
return hr;
}
return S_OK;
}
//-------------------------------------------------------------------------------------
// Flip/rotate image
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT FlipRotate( const Image& srcImage, DWORD flags, ScratchImage& image )
{
if ( !srcImage.pixels )
return E_POINTER;
if ( !flags )
return E_INVALIDARG;
#ifdef _AMD64_
if ( (srcImage.width > 0xFFFFFFFF) || (srcImage.height > 0xFFFFFFFF) )
return E_INVALIDARG;
#endif
if ( IsCompressed( srcImage.format ) )
{
// We don't support flip/rotate operations on compressed images
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
}
static_assert( TEX_FR_ROTATE0 == WICBitmapTransformRotate0, "TEX_FR_ROTATE0 no longer matches WIC" );
static_assert( TEX_FR_ROTATE90 == WICBitmapTransformRotate90, "TEX_FR_ROTATE90 no longer matches WIC" );
static_assert( TEX_FR_ROTATE180 == WICBitmapTransformRotate180, "TEX_FR_ROTATE180 no longer matches WIC" );
static_assert( TEX_FR_ROTATE270 == WICBitmapTransformRotate270, "TEX_FR_ROTATE270 no longer matches WIC" );
static_assert( TEX_FR_FLIP_HORIZONTAL == WICBitmapTransformFlipHorizontal, "TEX_FR_FLIP_HORIZONTAL no longer matches WIC" );
static_assert( TEX_FR_FLIP_VERTICAL == WICBitmapTransformFlipVertical, "TEX_FR_FLIP_VERTICAL no longer matches WIC" );
// Only supports 90, 180, 270, or no rotation flags... not a combination of rotation flags
switch ( flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE180|TEX_FR_ROTATE270) )
{
case 0:
case TEX_FR_ROTATE90:
case TEX_FR_ROTATE180:
case TEX_FR_ROTATE270:
break;
default:
return E_INVALIDARG;
}
size_t nwidth = srcImage.width;
size_t nheight = srcImage.height;
if (flags & (TEX_FR_ROTATE90|TEX_FR_ROTATE270))
{
nwidth = srcImage.height;
nheight = srcImage.width;
}
HRESULT hr = image.Initialize2D( srcImage.format, nwidth, nheight, 1, 1 );
if ( FAILED(hr) )
return hr;
const Image *rimage = image.GetImage( 0, 0, 0 );
if ( !rimage )
return E_POINTER;
WICPixelFormatGUID pfGUID;
if ( _DXGIToWIC( srcImage.format, pfGUID ) )
{
// Case 1: Source format is supported by Windows Imaging Component
hr = _PerformFlipRotateUsingWIC( srcImage, flags, pfGUID, *rimage );
}
else
{
// Case 2: Source format is not supported by WIC, so we have to convert, flip/rotate, and convert back
hr = _PerformFlipRotateViaF32( srcImage, flags, *rimage );
}
if ( FAILED(hr) )
{
image.Release();
return hr;
}
return S_OK;
}
//-------------------------------------------------------------------------------------
// CaptureTexture
bool Test05()
{
ComPtr<ID3D11Device> device;
ComPtr<ID3D11DeviceContext> context;
HRESULT hr = CreateDevice(device.GetAddressOf(), context.GetAddressOf());
if (FAILED(hr))
{
printe("Failed creating device (HRESULT %08X)\n", hr);
return false;
}
bool success = true;
size_t ncount = 0;
size_t npass = 0;
for (size_t index = 0; index < _countof(g_TestMedia); ++index)
{
if (g_TestMedia[index].options & FLAGS_NOT_SUPPORTED)
{
continue;
}
wchar_t szPath[MAX_PATH] = {};
DWORD ret = ExpandEnvironmentStringsW(g_TestMedia[index].fname, szPath, MAX_PATH);
if (!ret || ret > MAX_PATH)
{
printe("ERROR: ExpandEnvironmentStrings FAILED\n");
return false;
}
#ifdef _DEBUG
OutputDebugString(szPath);
OutputDebugStringA("\n");
#endif
// Form dest path
wchar_t ext[_MAX_EXT];
wchar_t fname[_MAX_FNAME];
_wsplitpath_s(szPath, nullptr, 0, nullptr, 0, fname, _MAX_FNAME, ext, _MAX_EXT);
wchar_t tempDir[MAX_PATH] = {};
ret = ExpandEnvironmentStringsW(TEMP_PATH L"d3d11", tempDir, MAX_PATH);
if (!ret || ret > MAX_PATH)
{
printe("ERROR: ExpandEnvironmentStrings FAILED\n");
return false;
}
CreateDirectoryW(tempDir, nullptr);
wchar_t szDestPath[MAX_PATH] = {};
_wmakepath_s(szDestPath, MAX_PATH, nullptr, tempDir, fname, L".dds");
TexMetadata metadata;
ScratchImage image;
if (_wcsicmp(ext, L".dds") == 0)
{
hr = LoadFromDDSFile(szPath, DDS_FLAGS_NONE, &metadata, image);
}
else
{
hr = LoadFromWICFile(szPath, WIC_FLAGS_NONE, &metadata, image);
}
bool forceNoMips = false;
const TexMetadata* check = &g_TestMedia[index].metadata;
if (FAILED(hr))
{
success = false;
printe("Failed getting data from (HRESULT %08X):\n%ls\n", hr, szPath);
}
else if (memcmp(&metadata, check, sizeof(TexMetadata)) != 0)
{
success = false;
printe("Metadata error in:\n%ls\n", szPath);
printmeta(&metadata);
printmetachk(check);
}
else
{
bool pass = true;
if (g_TestMedia[index].options & FLAGS_YUV)
{
if (!IsSupportedTexture(device.Get(), metadata))
{
// Can't create video textures with mips on most hardware
metadata.mipLevels = 1;
forceNoMips = true;
if (!IsSupportedTexture(device.Get(), metadata))
{
print("WARNING: Format %u is not supported by this hardware\n", metadata.format);
continue;
}
}
}
{
ComPtr<ID3D11Resource> pResource;
hr = CreateTexture(device.Get(), image.GetImages(), image.GetImageCount(), metadata, pResource.GetAddressOf());
if (FAILED(hr))
{
success = false;
printe("Failed creating texture from (HRESULT %08X):\n%ls\n", hr, szPath);
}
else
{
ScratchImage image2;
hr = CaptureTexture(device.Get(), context.Get(), pResource.Get(), image2);
if (FAILED(hr))
{
success = false;
printe("Failed capturing texture from (HRESULT %08X):\n%ls\n", hr, szPath);
}
else
{
const TexMetadata& mdata2 = image2.GetMetadata();
if (memcmp(&mdata2, &metadata, sizeof(TexMetadata)) != 0)
{
success = false;
printe("Metadata error in:\n%ls\n", szDestPath);
printmeta(&mdata2);
printmetachk(check);
}
else if (!forceNoMips && image.GetImageCount() != image2.GetImageCount())
{
success = false;
printe("Image count in captured texture (%zu) doesn't match source (%zu) in:\n%ls\n", image2.GetImageCount(), image.GetImageCount(), szDestPath);
}
else
{
hr = SaveToDDSFile(image2.GetImages(), image2.GetImageCount(), image2.GetMetadata(), DDS_FLAGS_NONE, szDestPath);
if (FAILED(hr))
{
success = false;
pass = false;
printe("Failed writing DDS to (HRESULT %08X):\n%ls\n", hr, szDestPath);
}
if (!IsPlanar(metadata.format))
{
float mse, mseV[4];
hr = ComputeMSE(*image.GetImage(0, 0, 0), *image2.GetImage(0, 0, 0), mse, mseV);
if (FAILED(hr))
{
success = false;
pass = false;
printe("Failed comparing captured image (HRESULT %08X):\n%ls\n", hr, szPath);
}
else if (fabs(mse) > 0.000001f)
{
success = false;
pass = false;
printe("Failed comparing captured image MSE = %f (%f %f %f %f)... 0.f:\n%ls\n",
mse, mseV[0], mseV[1], mseV[2], mseV[3], szPath);
}
}
}
}
}
}
// Staging resource tests
{
ComPtr<ID3D11Resource> pStaging;
hr = CreateTextureEx(device.Get(), image.GetImages(), image.GetImageCount(), metadata,
D3D11_USAGE_STAGING, 0, D3D11_CPU_ACCESS_READ, 0, false, pStaging.GetAddressOf());
if (FAILED(hr))
{
success = false;
pass = false;
printe("Failed creating test staging texture (HRESULT %08X):\n%ls\n", hr, szPath);
}
else
{
ScratchImage image2;
hr = CaptureTexture(device.Get(), context.Get(), pStaging.Get(), image2);
if (FAILED(hr))
{
success = false;
printe("Failed capturing texture from staging texture (HRESULT %08X):\n%ls\n", hr, szPath);
}
else
{
const TexMetadata& mdata2 = image2.GetMetadata();
if (memcmp(&mdata2, &metadata, sizeof(TexMetadata)) != 0)
{
success = false;
printe("Metadata error in:\n%ls\n", szDestPath);
printmeta(&mdata2);
printmetachk(check);
}
else if (!forceNoMips && image.GetImageCount() != image2.GetImageCount())
{
success = false;
printe("Image count in captured texture staging texture (%zu) doesn't match source (%zu) in:\n%ls\n", image2.GetImageCount(), image.GetImageCount(), szDestPath);
}
else
{
wchar_t tname[MAX_PATH] = {};
wcscpy_s(tname, fname);
wcscat_s(tname, L"_staging");
wchar_t szDestPath2[MAX_PATH] = {};
_wmakepath_s(szDestPath2, MAX_PATH, nullptr, tempDir, tname, L".dds");
hr = SaveToDDSFile(image2.GetImages(), image2.GetImageCount(), image2.GetMetadata(), DDS_FLAGS_NONE, szDestPath2);
if (FAILED(hr))
{
success = false;
pass = false;
printe("Failed writing DDS to (HRESULT %08X):\n%ls\n", hr, szDestPath2);
}
if (!IsPlanar(metadata.format))
{
float mse, mseV[4];
hr = ComputeMSE(*image.GetImage(0, 0, 0), *image2.GetImage(0, 0, 0), mse, mseV);
if (FAILED(hr))
{
success = false;
pass = false;
printe("Failed comparing captured image (HRESULT %08X):\n%ls\n", hr, szPath);
}
else if (fabs(mse) > 0.000001f)
{
success = false;
pass = false;
printe("Failed comparing captured image MSE = %f (%f %f %f %f)... 0.f:\n%ls\n",
mse, mseV[0], mseV[1], mseV[2], mseV[3], szPath);
}
}
}
}
}
}
// CaptureTexture of an MSAA resource is tested elsewhere
if (pass)
++npass;
}
++ncount;
}
print("%zu images tested, %zu images passed ", ncount, npass);
return success;
}
//-------------------------------------------------------------------------------------
// Resize image (complex)
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT Resize( const Image* srcImages, size_t nimages, const TexMetadata& metadata,
size_t width, size_t height, DWORD filter, ScratchImage& result )
{
if ( !srcImages || !nimages || width == 0 || height == 0 )
return E_INVALIDARG;
#ifdef _M_X64
if ( (width > 0xFFFFFFFF) || (height > 0xFFFFFFFF) )
return E_INVALIDARG;
#endif
TexMetadata mdata2 = metadata;
mdata2.width = width;
mdata2.height = height;
mdata2.mipLevels = 1;
HRESULT hr = result.Initialize( mdata2 );
if ( FAILED(hr) )
return hr;
bool usewic = _UseWICFiltering( metadata.format, filter );
WICPixelFormatGUID pfGUID = {0};
bool wicpf = ( usewic ) ? _DXGIToWIC( metadata.format, pfGUID, true ) : false;
switch ( metadata.dimension )
{
case TEX_DIMENSION_TEXTURE1D:
case TEX_DIMENSION_TEXTURE2D:
assert( metadata.depth == 1 );
for( size_t item = 0; item < metadata.arraySize; ++item )
{
size_t srcIndex = metadata.ComputeIndex( 0, item, 0 );
if ( srcIndex >= nimages )
{
result.Release();
return E_FAIL;
}
const Image* srcimg = &srcImages[ srcIndex ];
const Image* destimg = result.GetImage( 0, item, 0 );
if ( !srcimg || !destimg )
{
result.Release();
return E_POINTER;
}
if ( srcimg->format != metadata.format )
{
result.Release();
return E_FAIL;
}
#ifdef _M_X64
if ( (srcimg->width > 0xFFFFFFFF) || (srcimg->height > 0xFFFFFFFF) )
{
result.Release();
return E_FAIL;
}
#endif
if ( usewic )
{
if ( wicpf )
{
// Case 1: Source format is supported by Windows Imaging Component
hr = _PerformResizeUsingWIC( *srcimg, filter, pfGUID, *destimg );
}
else
{
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
hr = _PerformResizeViaF32( *srcimg, filter, *destimg );
}
}
else
{
// Case 3: not using WIC resizing
hr = _PerformResizeUsingCustomFilters( *srcimg, filter, *destimg );
}
if ( FAILED(hr) )
{
result.Release();
return hr;
}
}
break;
case TEX_DIMENSION_TEXTURE3D:
assert( metadata.arraySize == 1 );
for( size_t slice = 0; slice < metadata.depth; ++slice )
{
size_t srcIndex = metadata.ComputeIndex( 0, 0, slice );
if ( srcIndex >= nimages )
{
result.Release();
return E_FAIL;
}
const Image* srcimg = &srcImages[ srcIndex ];
const Image* destimg = result.GetImage( 0, 0, slice );
if ( !srcimg || !destimg )
{
result.Release();
return E_POINTER;
}
if ( srcimg->format != metadata.format )
{
result.Release();
return E_FAIL;
}
#ifdef _M_X64
if ( (srcimg->width > 0xFFFFFFFF) || (srcimg->height > 0xFFFFFFFF) )
{
result.Release();
return E_FAIL;
}
#endif
if ( usewic )
{
if ( wicpf )
{
// Case 1: Source format is supported by Windows Imaging Component
hr = _PerformResizeUsingWIC( *srcimg, filter, pfGUID, *destimg );
}
else
{
// Case 2: Source format is not supported by WIC, so we have to convert, resize, and convert back
hr = _PerformResizeViaF32( *srcimg, filter, *destimg );
}
}
else
{
// Case 3: not using WIC resizing
hr = _PerformResizeUsingCustomFilters( *srcimg, filter, *destimg );
}
if ( FAILED(hr) )
{
result.Release();
return hr;
}
}
break;
default:
result.Release();
return E_FAIL;
}
return S_OK;
}
