//-------------------------------------------------------------------------------------- // File: ScreenGrab11.cpp // // Function for capturing a 2D texture and saving it to a file (aka a 'screenshot' // when used on a Direct3D Render Target). // // Note these functions are useful as a light-weight runtime screen grabber. For // full-featured texture capture, DDS 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 //-------------------------------------------------------------------------------------- // Does not capture 1D textures or 3D textures (volume maps) // Does not capture mipmap chains, only the top-most texture level is saved // For 2D array textures and cubemaps, it captures only the first image in the array #include "ScreenGrab11.h" #include #include #include #include #include #include #include #include #include #include #ifdef _MSC_VER // Off by default warnings #pragma warning(disable : 4619 4616 4061 4062 4623 4626 5027) // C4619/4616 #pragma warning warnings // C4061 enumerator 'x' in switch of enum 'y' is not explicitly handled by a case label // C4062 enumerator 'x' in switch of enum 'y' is not handled // C4623 default constructor was implicitly defined as deleted // C4626 assignment operator was implicitly defined as deleted // C5027 move assignment operator was implicitly defined as deleted #endif #ifdef __clang__ #pragma clang diagnostic ignored "-Wcovered-switch-default" #pragma clang diagnostic ignored "-Wswitch-enum" #endif using Microsoft::WRL::ComPtr; //-------------------------------------------------------------------------------------- // 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 //-------------------------------------------------------------------------------------- namespace { #pragma pack(push,1) constexpr 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_RGBA 0x00000041 // DDPF_RGB | DDPF_ALPHAPIXELS #define DDS_LUMINANCE 0x00020000 // DDPF_LUMINANCE #define DDS_LUMINANCEA 0x00020001 // DDPF_LUMINANCE | DDPF_ALPHAPIXELS #define DDS_ALPHA 0x00000002 // DDPF_ALPHA #define DDS_BUMPDUDV 0x00080000 // DDPF_BUMPDUDV #define DDS_HEADER_FLAGS_TEXTURE 0x00001007 // DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT #define DDS_HEADER_FLAGS_MIPMAP 0x00020000 // DDSD_MIPMAPCOUNT #define DDS_HEADER_FLAGS_PITCH 0x00000008 // DDSD_PITCH #define DDS_HEADER_FLAGS_LINEARSIZE 0x00080000 // DDSD_LINEARSIZE #define DDS_SURFACE_FLAGS_TEXTURE 0x00001000 // DDSCAPS_TEXTURE 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 reserved; }; #pragma pack(pop) static_assert(sizeof(DDS_PIXELFORMAT) == 32, "DDS pixel format size mismatch"); static_assert(sizeof(DDS_HEADER) == 124, "DDS Header size mismatch"); static_assert(sizeof(DDS_HEADER_DXT10) == 20, "DDS DX10 Extended Header size mismatch"); constexpr size_t DDS_MIN_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER); constexpr size_t DDS_DX10_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10); static_assert(DDS_DX10_HEADER_SIZE > DDS_MIN_HEADER_SIZE, "DDS DX10 Header should be larger than standard header"); const DDS_PIXELFORMAT DDSPF_DXT1 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','1'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_DXT3 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','3'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_DXT5 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','T','5'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_BC4_UNORM = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B','C','4','U'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_BC4_SNORM = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B','C','4','S'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_BC5_UNORM = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B','C','5','U'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_BC5_SNORM = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B','C','5','S'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_R8G8_B8G8 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('R','G','B','G'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_G8R8_G8B8 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('G','R','G','B'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_YUY2 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('Y','U','Y','2'), 0, 0, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_A8R8G8B8 = { sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 }; const DDS_PIXELFORMAT DDSPF_X8R8G8B8 = { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 32, 0x00ff0000, 0x0000ff00, 0x000000ff, 0 }; const DDS_PIXELFORMAT DDSPF_A8B8G8R8 = { sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 }; const DDS_PIXELFORMAT DDSPF_G16R16 = { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 32, 0x0000ffff, 0xffff0000, 0, 0 }; const DDS_PIXELFORMAT DDSPF_R5G6B5 = { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0xf800, 0x07e0, 0x001f, 0 }; const DDS_PIXELFORMAT DDSPF_A1R5G5B5 = { sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x7c00, 0x03e0, 0x001f, 0x8000 }; const DDS_PIXELFORMAT DDSPF_A4R4G4B4 = { sizeof(DDS_PIXELFORMAT), DDS_RGBA, 0, 16, 0x0f00, 0x00f0, 0x000f, 0xf000 }; const DDS_PIXELFORMAT DDSPF_L8 = { sizeof(DDS_PIXELFORMAT), DDS_LUMINANCE, 0, 8, 0xff, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_L16 = { sizeof(DDS_PIXELFORMAT), DDS_LUMINANCE, 0, 16, 0xffff, 0, 0, 0 }; const DDS_PIXELFORMAT DDSPF_A8L8 = { sizeof(DDS_PIXELFORMAT), DDS_LUMINANCEA, 0, 16, 0x00ff, 0, 0, 0xff00 }; const DDS_PIXELFORMAT DDSPF_A8 = { sizeof(DDS_PIXELFORMAT), DDS_ALPHA, 0, 8, 0, 0, 0, 0xff }; const DDS_PIXELFORMAT DDSPF_V8U8 = { sizeof(DDS_PIXELFORMAT), DDS_BUMPDUDV, 0, 16, 0x00ff, 0xff00, 0, 0 }; const DDS_PIXELFORMAT DDSPF_Q8W8V8U8 = { sizeof(DDS_PIXELFORMAT), DDS_BUMPDUDV, 0, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 }; const DDS_PIXELFORMAT DDSPF_V16U16 = { sizeof(DDS_PIXELFORMAT), DDS_BUMPDUDV, 0, 32, 0x0000ffff, 0xffff0000, 0, 0 }; // DXGI_FORMAT_R10G10B10A2_UNORM should be written using DX10 extension to avoid D3DX 10:10:10:2 reversal issue // This indicates the DDS_HEADER_DXT10 extension is present (the format is in dxgiFormat) const DDS_PIXELFORMAT DDSPF_DX10 = { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','1','0'), 0, 0, 0, 0, 0 }; //----------------------------------------------------------------------------- struct handle_closer { void operator()(HANDLE h) noexcept { if (h) CloseHandle(h); } }; using ScopedHandle = std::unique_ptr; inline HANDLE safe_handle(HANDLE h) noexcept { return (h == INVALID_HANDLE_VALUE) ? nullptr : h; } class auto_delete_file { public: auto_delete_file(HANDLE hFile) noexcept : m_handle(hFile) {} ~auto_delete_file() { if (m_handle) { FILE_DISPOSITION_INFO info = {}; info.DeleteFile = TRUE; std::ignore = SetFileInformationByHandle(m_handle, FileDispositionInfo, &info, sizeof(info)); } } auto_delete_file(const auto_delete_file&) = delete; auto_delete_file& operator=(const auto_delete_file&) = delete; auto_delete_file(const auto_delete_file&&) = delete; auto_delete_file& operator=(const auto_delete_file&&) = delete; void clear() noexcept { m_handle = nullptr; } private: HANDLE m_handle; }; class auto_delete_file_wic { public: auto_delete_file_wic(ComPtr& hFile, const wchar_t* szFile) noexcept : m_filename(szFile), m_handle(hFile) {} ~auto_delete_file_wic() { if (m_filename) { m_handle.Reset(); DeleteFileW(m_filename); } } auto_delete_file_wic(const auto_delete_file_wic&) = delete; auto_delete_file_wic& operator=(const auto_delete_file_wic&) = delete; auto_delete_file_wic(const auto_delete_file_wic&&) = delete; auto_delete_file_wic& operator=(const auto_delete_file_wic&&) = delete; void clear() noexcept { m_filename = nullptr; } private: const wchar_t* m_filename; ComPtr& m_handle; }; //-------------------------------------------------------------------------------------- // 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; } } //-------------------------------------------------------------------------------------- // Determines if the format is block compressed //-------------------------------------------------------------------------------------- bool IsCompressed(_In_ DXGI_FORMAT fmt) noexcept { switch (fmt) { case DXGI_FORMAT_BC1_TYPELESS: case DXGI_FORMAT_BC1_UNORM: case DXGI_FORMAT_BC1_UNORM_SRGB: 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_BC4_TYPELESS: case DXGI_FORMAT_BC4_UNORM: case DXGI_FORMAT_BC4_SNORM: 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 true; default: return false; } } //-------------------------------------------------------------------------------------- // Get surface information for a particular format //-------------------------------------------------------------------------------------- HRESULT GetSurfaceInfo( _In_ size_t width, _In_ size_t height, _In_ DXGI_FORMAT fmt, _Out_opt_ 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(1u, (uint64_t(width) + 3u) / 4u); } uint64_t numBlocksHigh = 0; if (height > 0) { numBlocksHigh = std::max(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 { const 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(numBytes); } if (outRowBytes) { *outRowBytes = static_cast(rowBytes); } if (outNumRows) { *outNumRows = static_cast(numRows); } return S_OK; } //-------------------------------------------------------------------------------------- DXGI_FORMAT EnsureNotTypeless(DXGI_FORMAT fmt) noexcept { // Assumes UNORM or FLOAT; doesn't use UINT or SINT switch (fmt) { case DXGI_FORMAT_R32G32B32A32_TYPELESS: return DXGI_FORMAT_R32G32B32A32_FLOAT; case DXGI_FORMAT_R32G32B32_TYPELESS: return DXGI_FORMAT_R32G32B32_FLOAT; case DXGI_FORMAT_R16G16B16A16_TYPELESS: return DXGI_FORMAT_R16G16B16A16_UNORM; case DXGI_FORMAT_R32G32_TYPELESS: return DXGI_FORMAT_R32G32_FLOAT; case DXGI_FORMAT_R10G10B10A2_TYPELESS: return DXGI_FORMAT_R10G10B10A2_UNORM; case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM; case DXGI_FORMAT_R16G16_TYPELESS: return DXGI_FORMAT_R16G16_UNORM; case DXGI_FORMAT_R32_TYPELESS: return DXGI_FORMAT_R32_FLOAT; case DXGI_FORMAT_R8G8_TYPELESS: return DXGI_FORMAT_R8G8_UNORM; case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_R16_UNORM; case DXGI_FORMAT_R8_TYPELESS: return DXGI_FORMAT_R8_UNORM; case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM; case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM; case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM; case DXGI_FORMAT_BC4_TYPELESS: return DXGI_FORMAT_BC4_UNORM; case DXGI_FORMAT_BC5_TYPELESS: return DXGI_FORMAT_BC5_UNORM; case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM; case DXGI_FORMAT_B8G8R8X8_TYPELESS: return DXGI_FORMAT_B8G8R8X8_UNORM; case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM; default: return fmt; } } //-------------------------------------------------------------------------------------- HRESULT CaptureTexture( _In_ ID3D11DeviceContext* pContext, _In_ ID3D11Resource* pSource, D3D11_TEXTURE2D_DESC& desc, ComPtr& pStaging) noexcept { if (!pContext || !pSource) return E_INVALIDARG; D3D11_RESOURCE_DIMENSION resType = D3D11_RESOURCE_DIMENSION_UNKNOWN; pSource->GetType(&resType); if (resType != D3D11_RESOURCE_DIMENSION_TEXTURE2D) return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED); ComPtr pTexture; HRESULT hr = pSource->QueryInterface(IID_ID3D11Texture2D, reinterpret_cast(pTexture.GetAddressOf())); if (FAILED(hr)) return hr; assert(pTexture); pTexture->GetDesc(&desc); ComPtr d3dDevice; pContext->GetDevice(d3dDevice.GetAddressOf()); if (desc.SampleDesc.Count > 1) { // MSAA content must be resolved before being copied to a staging texture desc.SampleDesc.Count = 1; desc.SampleDesc.Quality = 0; ComPtr pTemp; hr = d3dDevice->CreateTexture2D(&desc, nullptr, pTemp.GetAddressOf()); if (FAILED(hr)) return hr; assert(pTemp); const DXGI_FORMAT fmt = EnsureNotTypeless(desc.Format); UINT support = 0; hr = d3dDevice->CheckFormatSupport(fmt, &support); if (FAILED(hr)) return hr; if (!(support & D3D11_FORMAT_SUPPORT_MULTISAMPLE_RESOLVE)) return E_FAIL; for (UINT item = 0; item < desc.ArraySize; ++item) { for (UINT level = 0; level < desc.MipLevels; ++level) { const UINT index = D3D11CalcSubresource(level, item, desc.MipLevels); pContext->ResolveSubresource(pTemp.Get(), index, pSource, index, fmt); } } desc.BindFlags = 0; desc.MiscFlags &= D3D11_RESOURCE_MISC_TEXTURECUBE; desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ; desc.Usage = D3D11_USAGE_STAGING; hr = d3dDevice->CreateTexture2D(&desc, nullptr, pStaging.ReleaseAndGetAddressOf()); if (FAILED(hr)) return hr; assert(pStaging); pContext->CopyResource(pStaging.Get(), pTemp.Get()); } else if ((desc.Usage == D3D11_USAGE_STAGING) && (desc.CPUAccessFlags & D3D11_CPU_ACCESS_READ)) { // Handle case where the source is already a staging texture we can use directly pStaging = pTexture; } else { // Otherwise, create a staging texture from the non-MSAA source desc.BindFlags = 0; desc.MiscFlags &= D3D11_RESOURCE_MISC_TEXTURECUBE; desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ; desc.Usage = D3D11_USAGE_STAGING; hr = d3dDevice->CreateTexture2D(&desc, nullptr, pStaging.ReleaseAndGetAddressOf()); if (FAILED(hr)) return hr; assert(pStaging); pContext->CopyResource(pStaging.Get(), pSource); } return S_OK; } //-------------------------------------------------------------------------------------- bool g_WIC2 = false; BOOL WINAPI InitializeWICFactory(PINIT_ONCE, PVOID, PVOID* ifactory) noexcept { #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE) HRESULT hr = CoCreateInstance( CLSID_WICImagingFactory2, nullptr, CLSCTX_INPROC_SERVER, __uuidof(IWICImagingFactory2), ifactory ); if (SUCCEEDED(hr)) { // WIC2 is available on Windows 10, Windows 8.x, and Windows 7 SP1 with KB 2670838 installed g_WIC2 = true; return TRUE; } else { hr = CoCreateInstance( CLSID_WICImagingFactory1, nullptr, CLSCTX_INPROC_SERVER, __uuidof(IWICImagingFactory), ifactory ); return SUCCEEDED(hr) ? TRUE : FALSE; } #else return SUCCEEDED(CoCreateInstance( CLSID_WICImagingFactory, nullptr, CLSCTX_INPROC_SERVER, __uuidof(IWICImagingFactory), ifactory)) ? TRUE : FALSE; #endif } IWICImagingFactory* GetWIC() noexcept { static INIT_ONCE s_initOnce = INIT_ONCE_STATIC_INIT; IWICImagingFactory* factory = nullptr; if (!InitOnceExecuteOnce(&s_initOnce, InitializeWICFactory, nullptr, reinterpret_cast(&factory))) { return nullptr; } return factory; } } // anonymous namespace //-------------------------------------------------------------------------------------- _Use_decl_annotations_ HRESULT DirectX::SaveDDSTextureToFile( ID3D11DeviceContext* pContext, ID3D11Resource* pSource, const wchar_t* fileName) noexcept { if (!fileName) return E_INVALIDARG; D3D11_TEXTURE2D_DESC desc = {}; ComPtr pStaging; HRESULT hr = CaptureTexture(pContext, pSource, desc, pStaging); if (FAILED(hr)) return hr; // Create file #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) ScopedHandle hFile(safe_handle(CreateFile2(fileName, GENERIC_WRITE | DELETE, 0, CREATE_ALWAYS, nullptr))); #else ScopedHandle hFile(safe_handle(CreateFileW(fileName, GENERIC_WRITE | DELETE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr))); #endif if (!hFile) return HRESULT_FROM_WIN32(GetLastError()); auto_delete_file delonfail(hFile.get()); // Setup header uint8_t fileHeader[DDS_DX10_HEADER_SIZE] = {}; *reinterpret_cast(&fileHeader[0]) = DDS_MAGIC; auto header = reinterpret_cast(&fileHeader[0] + sizeof(uint32_t)); size_t headerSize = DDS_MIN_HEADER_SIZE; header->size = sizeof(DDS_HEADER); header->flags = DDS_HEADER_FLAGS_TEXTURE | DDS_HEADER_FLAGS_MIPMAP; header->height = desc.Height; header->width = desc.Width; header->mipMapCount = 1; header->caps = DDS_SURFACE_FLAGS_TEXTURE; // Try to use a legacy .DDS pixel format for better tools support, otherwise fallback to 'DX10' header extension DDS_HEADER_DXT10* extHeader = nullptr; switch (desc.Format) { case DXGI_FORMAT_R8G8B8A8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A8B8G8R8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R16G16_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_G16R16, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R8G8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A8L8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R16_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_L16, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_L8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_A8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R8G8_B8G8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_R8G8_B8G8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_G8R8_G8B8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_G8R8_G8B8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC1_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_DXT1, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC2_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_DXT3, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC3_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_DXT5, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC4_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_BC4_UNORM, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC4_SNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_BC4_SNORM, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC5_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_BC5_UNORM, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_BC5_SNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_BC5_SNORM, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_B5G6R5_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_R5G6B5, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_B5G5R5A1_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A1R5G5B5, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R8G8_SNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_V8U8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R8G8B8A8_SNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_Q8W8V8U8, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_R16G16_SNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_V16U16, sizeof(DDS_PIXELFORMAT)); break; case DXGI_FORMAT_B8G8R8A8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A8R8G8B8, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.1 case DXGI_FORMAT_B8G8R8X8_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_X8R8G8B8, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.1 case DXGI_FORMAT_YUY2: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_YUY2, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.2 case DXGI_FORMAT_B4G4R4A4_UNORM: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_A4R4G4B4, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.2 // Legacy D3DX formats using D3DFMT enum value as FourCC case DXGI_FORMAT_R32G32B32A32_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 116; break; // D3DFMT_A32B32G32R32F case DXGI_FORMAT_R16G16B16A16_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 113; break; // D3DFMT_A16B16G16R16F case DXGI_FORMAT_R16G16B16A16_UNORM: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 36; break; // D3DFMT_A16B16G16R16 case DXGI_FORMAT_R16G16B16A16_SNORM: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 110; break; // D3DFMT_Q16W16V16U16 case DXGI_FORMAT_R32G32_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 115; break; // D3DFMT_G32R32F case DXGI_FORMAT_R16G16_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 112; break; // D3DFMT_G16R16F case DXGI_FORMAT_R32_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 114; break; // D3DFMT_R32F case DXGI_FORMAT_R16_FLOAT: header->ddspf.size = sizeof(DDS_PIXELFORMAT); header->ddspf.flags = DDS_FOURCC; header->ddspf.fourCC = 111; break; // D3DFMT_R16F case DXGI_FORMAT_AI44: case DXGI_FORMAT_IA44: case DXGI_FORMAT_P8: case DXGI_FORMAT_A8P8: return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED); default: memcpy_s(&header->ddspf, sizeof(header->ddspf), &DDSPF_DX10, sizeof(DDS_PIXELFORMAT)); headerSize += sizeof(DDS_HEADER_DXT10); extHeader = reinterpret_cast(fileHeader + DDS_MIN_HEADER_SIZE); extHeader->dxgiFormat = desc.Format; extHeader->resourceDimension = D3D11_RESOURCE_DIMENSION_TEXTURE2D; extHeader->arraySize = 1; break; } size_t rowPitch, slicePitch, rowCount; hr = GetSurfaceInfo(desc.Width, desc.Height, desc.Format, &slicePitch, &rowPitch, &rowCount); if (FAILED(hr)) return hr; if (rowPitch > UINT32_MAX || slicePitch > UINT32_MAX) return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW); if (IsCompressed(desc.Format)) { header->flags |= DDS_HEADER_FLAGS_LINEARSIZE; header->pitchOrLinearSize = static_cast(slicePitch); } else { header->flags |= DDS_HEADER_FLAGS_PITCH; header->pitchOrLinearSize = static_cast(rowPitch); } // Setup pixels std::unique_ptr pixels(new (std::nothrow) uint8_t[slicePitch]); if (!pixels) return E_OUTOFMEMORY; D3D11_MAPPED_SUBRESOURCE mapped; hr = pContext->Map(pStaging.Get(), 0, D3D11_MAP_READ, 0, &mapped); if (FAILED(hr)) return hr; auto sptr = static_cast(mapped.pData); if (!sptr) { pContext->Unmap(pStaging.Get(), 0); return E_POINTER; } uint8_t* dptr = pixels.get(); const size_t msize = std::min(rowPitch, mapped.RowPitch); for (size_t h = 0; h < rowCount; ++h) { memcpy_s(dptr, rowPitch, sptr, msize); sptr += mapped.RowPitch; dptr += rowPitch; } pContext->Unmap(pStaging.Get(), 0); // Write header & pixels DWORD bytesWritten; if (!WriteFile(hFile.get(), fileHeader, static_cast(headerSize), &bytesWritten, nullptr)) return HRESULT_FROM_WIN32(GetLastError()); if (bytesWritten != headerSize) return E_FAIL; if (!WriteFile(hFile.get(), pixels.get(), static_cast(slicePitch), &bytesWritten, nullptr)) return HRESULT_FROM_WIN32(GetLastError()); if (bytesWritten != slicePitch) return E_FAIL; delonfail.clear(); return S_OK; } //-------------------------------------------------------------------------------------- _Use_decl_annotations_ HRESULT DirectX::SaveWICTextureToFile( ID3D11DeviceContext* pContext, ID3D11Resource* pSource, REFGUID guidContainerFormat, const wchar_t* fileName, const GUID* targetFormat, std::function setCustomProps, bool forceSRGB) { if (!fileName) return E_INVALIDARG; D3D11_TEXTURE2D_DESC desc = {}; ComPtr pStaging; HRESULT hr = CaptureTexture(pContext, pSource, desc, pStaging); if (FAILED(hr)) return hr; // Determine source format's WIC equivalent WICPixelFormatGUID pfGuid = {}; bool sRGB = forceSRGB; switch (desc.Format) { case DXGI_FORMAT_R32G32B32A32_FLOAT: pfGuid = GUID_WICPixelFormat128bppRGBAFloat; break; case DXGI_FORMAT_R16G16B16A16_FLOAT: pfGuid = GUID_WICPixelFormat64bppRGBAHalf; break; case DXGI_FORMAT_R16G16B16A16_UNORM: pfGuid = GUID_WICPixelFormat64bppRGBA; break; case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM: pfGuid = GUID_WICPixelFormat32bppRGBA1010102XR; break; // DXGI 1.1 case DXGI_FORMAT_R10G10B10A2_UNORM: pfGuid = GUID_WICPixelFormat32bppRGBA1010102; break; case DXGI_FORMAT_B5G5R5A1_UNORM: pfGuid = GUID_WICPixelFormat16bppBGRA5551; break; case DXGI_FORMAT_B5G6R5_UNORM: pfGuid = GUID_WICPixelFormat16bppBGR565; break; case DXGI_FORMAT_R32_FLOAT: pfGuid = GUID_WICPixelFormat32bppGrayFloat; break; case DXGI_FORMAT_R16_FLOAT: pfGuid = GUID_WICPixelFormat16bppGrayHalf; break; case DXGI_FORMAT_R16_UNORM: pfGuid = GUID_WICPixelFormat16bppGray; break; case DXGI_FORMAT_R8_UNORM: pfGuid = GUID_WICPixelFormat8bppGray; break; case DXGI_FORMAT_A8_UNORM: pfGuid = GUID_WICPixelFormat8bppAlpha; break; case DXGI_FORMAT_R8G8B8A8_UNORM: pfGuid = GUID_WICPixelFormat32bppRGBA; break; case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB: pfGuid = GUID_WICPixelFormat32bppRGBA; sRGB = true; break; case DXGI_FORMAT_B8G8R8A8_UNORM: // DXGI 1.1 pfGuid = GUID_WICPixelFormat32bppBGRA; break; case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB: // DXGI 1.1 pfGuid = GUID_WICPixelFormat32bppBGRA; sRGB = true; break; case DXGI_FORMAT_B8G8R8X8_UNORM: // DXGI 1.1 pfGuid = GUID_WICPixelFormat32bppBGR; break; case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB: // DXGI 1.1 pfGuid = GUID_WICPixelFormat32bppBGR; sRGB = true; break; default: return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED); } auto pWIC = GetWIC(); if (!pWIC) return E_NOINTERFACE; ComPtr stream; hr = pWIC->CreateStream(stream.GetAddressOf()); if (FAILED(hr)) return hr; hr = stream->InitializeFromFilename(fileName, GENERIC_WRITE); if (FAILED(hr)) return hr; auto_delete_file_wic delonfail(stream, fileName); ComPtr encoder; hr = pWIC->CreateEncoder(guidContainerFormat, nullptr, encoder.GetAddressOf()); if (FAILED(hr)) return hr; hr = encoder->Initialize(stream.Get(), WICBitmapEncoderNoCache); if (FAILED(hr)) return hr; ComPtr frame; ComPtr props; hr = encoder->CreateNewFrame(frame.GetAddressOf(), props.GetAddressOf()); if (FAILED(hr)) return hr; if (targetFormat && memcmp(&guidContainerFormat, &GUID_ContainerFormatBmp, sizeof(WICPixelFormatGUID)) == 0 && g_WIC2) { // Opt-in to the WIC2 support for writing 32-bit Windows BMP files with an alpha channel PROPBAG2 option = {}; option.pstrName = const_cast(L"EnableV5Header32bppBGRA"); VARIANT varValue; varValue.vt = VT_BOOL; varValue.boolVal = VARIANT_TRUE; std::ignore = props->Write(1, &option, &varValue); } if (setCustomProps) { setCustomProps(props.Get()); } hr = frame->Initialize(props.Get()); if (FAILED(hr)) return hr; hr = frame->SetSize(desc.Width, desc.Height); if (FAILED(hr)) return hr; hr = frame->SetResolution(72, 72); if (FAILED(hr)) return hr; // Pick a target format WICPixelFormatGUID targetGuid = {}; if (targetFormat) { targetGuid = *targetFormat; } else { // Screenshots don't typically include the alpha channel of the render target switch (desc.Format) { #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE) case DXGI_FORMAT_R32G32B32A32_FLOAT: case DXGI_FORMAT_R16G16B16A16_FLOAT: if (g_WIC2) { targetGuid = GUID_WICPixelFormat96bppRGBFloat; } else { targetGuid = GUID_WICPixelFormat24bppBGR; } break; #endif case DXGI_FORMAT_R16G16B16A16_UNORM: targetGuid = GUID_WICPixelFormat48bppBGR; break; case DXGI_FORMAT_B5G5R5A1_UNORM: targetGuid = GUID_WICPixelFormat16bppBGR555; break; case DXGI_FORMAT_B5G6R5_UNORM: targetGuid = GUID_WICPixelFormat16bppBGR565; break; case DXGI_FORMAT_R32_FLOAT: case DXGI_FORMAT_R16_FLOAT: case DXGI_FORMAT_R16_UNORM: case DXGI_FORMAT_R8_UNORM: case DXGI_FORMAT_A8_UNORM: targetGuid = GUID_WICPixelFormat8bppGray; break; default: targetGuid = GUID_WICPixelFormat24bppBGR; break; } } hr = frame->SetPixelFormat(&targetGuid); if (FAILED(hr)) return hr; if (targetFormat && memcmp(targetFormat, &targetGuid, sizeof(WICPixelFormatGUID)) != 0) { // Requested output pixel format is not supported by the WIC codec return E_FAIL; } // Encode WIC metadata ComPtr metawriter; if (SUCCEEDED(frame->GetMetadataQueryWriter(metawriter.GetAddressOf()))) { PROPVARIANT value; PropVariantInit(&value); value.vt = VT_LPSTR; value.pszVal = const_cast("DirectXTK"); if (memcmp(&guidContainerFormat, &GUID_ContainerFormatPng, sizeof(GUID)) == 0) { // Set Software name std::ignore = metawriter->SetMetadataByName(L"/tEXt/{str=Software}", &value); // Set sRGB chunk if (sRGB) { value.vt = VT_UI1; value.bVal = 0; std::ignore = metawriter->SetMetadataByName(L"/sRGB/RenderingIntent", &value); } else { // add gAMA chunk with gamma 1.0 value.vt = VT_UI4; value.uintVal = 100000; // gama value * 100,000 -- i.e. gamma 1.0 std::ignore = metawriter->SetMetadataByName(L"/gAMA/ImageGamma", &value); // remove sRGB chunk which is added by default. std::ignore = metawriter->RemoveMetadataByName(L"/sRGB/RenderingIntent"); } } else { // Set Software name std::ignore = metawriter->SetMetadataByName(L"System.ApplicationName", &value); if (sRGB) { // Set EXIF Colorspace of sRGB value.vt = VT_UI2; value.uiVal = 1; std::ignore = metawriter->SetMetadataByName(L"System.Image.ColorSpace", &value); } } } D3D11_MAPPED_SUBRESOURCE mapped; hr = pContext->Map(pStaging.Get(), 0, D3D11_MAP_READ, 0, &mapped); if (FAILED(hr)) return hr; const uint64_t imageSize = uint64_t(mapped.RowPitch) * uint64_t(desc.Height); if (imageSize > UINT32_MAX) { pContext->Unmap(pStaging.Get(), 0); return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW); } if (memcmp(&targetGuid, &pfGuid, sizeof(WICPixelFormatGUID)) != 0) { // Conversion required to write ComPtr source; hr = pWIC->CreateBitmapFromMemory(desc.Width, desc.Height, pfGuid, mapped.RowPitch, static_cast(imageSize), static_cast(mapped.pData), source.GetAddressOf()); if (FAILED(hr)) { pContext->Unmap(pStaging.Get(), 0); return hr; } ComPtr FC; hr = pWIC->CreateFormatConverter(FC.GetAddressOf()); if (FAILED(hr)) { pContext->Unmap(pStaging.Get(), 0); return hr; } BOOL canConvert = FALSE; hr = FC->CanConvert(pfGuid, targetGuid, &canConvert); if (FAILED(hr) || !canConvert) { pContext->Unmap(pStaging.Get(), 0); return E_UNEXPECTED; } hr = FC->Initialize(source.Get(), targetGuid, WICBitmapDitherTypeNone, nullptr, 0, WICBitmapPaletteTypeMedianCut); if (FAILED(hr)) { pContext->Unmap(pStaging.Get(), 0); return hr; } WICRect rect = { 0, 0, static_cast(desc.Width), static_cast(desc.Height) }; hr = frame->WriteSource(FC.Get(), &rect); } else { // No conversion required hr = frame->WritePixels(desc.Height, mapped.RowPitch, static_cast(imageSize), static_cast(mapped.pData)); } pContext->Unmap(pStaging.Get(), 0); if (FAILED(hr)) return hr; hr = frame->Commit(); if (FAILED(hr)) return hr; hr = encoder->Commit(); if (FAILED(hr)) return hr; delonfail.clear(); return S_OK; }