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mirror of https://github.com/ncblakely/GiantsTools synced 2024-12-23 07:47:22 +01:00
GiantsTools/Sdk/External/DirectXTK/Src/ScreenGrab.cpp
2021-01-23 15:40:09 -08:00

679 lines
26 KiB
C++

//--------------------------------------------------------------------------------------
// File: ScreenGrab.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. All rights reserved.
// 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 "pch.h"
#include "ScreenGrab.h"
#include "DirectXHelpers.h"
#include "PlatformHelpers.h"
#include "DDS.h"
#include "LoaderHelpers.h"
using Microsoft::WRL::ComPtr;
using namespace DirectX;
using namespace DirectX::LoaderHelpers;
namespace
{
//--------------------------------------------------------------------------------------
HRESULT CaptureTexture(
_In_ ID3D11DeviceContext* pContext,
_In_ ID3D11Resource* pSource,
D3D11_TEXTURE2D_DESC& desc,
ComPtr<ID3D11Texture2D>& 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)
{
DebugTrace("ERROR: ScreenGrab does not support 1D or volume textures. Consider using DirectXTex instead.\n");
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
ComPtr<ID3D11Texture2D> pTexture;
HRESULT hr = pSource->QueryInterface(IID_GRAPHICS_PPV_ARGS(pTexture.GetAddressOf()));
if (FAILED(hr))
return hr;
assert(pTexture);
pTexture->GetDesc(&desc);
if (desc.ArraySize > 1 || desc.MipLevels > 1)
{
DebugTrace("WARNING: ScreenGrab does not support 2D arrays, cubemaps, or mipmaps; only the first surface is written. Consider using DirectXTex instead.\n");
}
ComPtr<ID3D11Device> 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<ID3D11Texture2D> pTemp;
hr = d3dDevice->CreateTexture2D(&desc, nullptr, pTemp.GetAddressOf());
if (FAILED(hr))
return hr;
assert(pTemp);
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)
{
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);
}
#if defined(_XBOX_ONE) && defined(_TITLE)
if (d3dDevice->GetCreationFlags() & D3D11_CREATE_DEVICE_IMMEDIATE_CONTEXT_FAST_SEMANTICS)
{
ComPtr<ID3D11DeviceX> d3dDeviceX;
hr = d3dDevice.As(&d3dDeviceX);
if (FAILED(hr))
return hr;
ComPtr<ID3D11DeviceContextX> d3dContextX;
hr = pContext->QueryInterface(IID_GRAPHICS_PPV_ARGS(d3dContextX.GetAddressOf()));
if (FAILED(hr))
return hr;
UINT64 copyFence = d3dContextX->InsertFence(0);
while (d3dDeviceX->IsFencePending(copyFence))
{
SwitchToThread();
}
}
#endif
return S_OK;
}
} // 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<ID3D11Texture2D> 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, 0, nullptr)));
#endif
if (!hFile)
return HRESULT_FROM_WIN32(GetLastError());
auto_delete_file delonfail(hFile.get());
// Setup header
const size_t MAX_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10);
uint8_t fileHeader[MAX_HEADER_SIZE] = {};
*reinterpret_cast<uint32_t*>(&fileHeader[0]) = DDS_MAGIC;
auto header = reinterpret_cast<DDS_HEADER*>(&fileHeader[0] + sizeof(uint32_t));
size_t headerSize = sizeof(uint32_t) + sizeof(DDS_HEADER);
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:
DebugTrace("ERROR: ScreenGrab does not support video textures. Consider using DirectXTex.\n");
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<DDS_HEADER_DXT10*>(fileHeader + sizeof(uint32_t) + sizeof(DDS_HEADER));
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<uint32_t>(slicePitch);
}
else
{
header->flags |= DDS_HEADER_FLAGS_PITCH;
header->pitchOrLinearSize = static_cast<uint32_t>(rowPitch);
}
// Setup pixels
std::unique_ptr<uint8_t[]> 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<const uint8_t*>(mapped.pData);
if (!sptr)
{
pContext->Unmap(pStaging.Get(), 0);
return E_POINTER;
}
uint8_t* dptr = pixels.get();
size_t msize = std::min<size_t>(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<DWORD>(headerSize), &bytesWritten, nullptr))
return HRESULT_FROM_WIN32(GetLastError());
if (bytesWritten != headerSize)
return E_FAIL;
if (!WriteFile(hFile.get(), pixels.get(), static_cast<DWORD>(slicePitch), &bytesWritten, nullptr))
return HRESULT_FROM_WIN32(GetLastError());
if (bytesWritten != slicePitch)
return E_FAIL;
delonfail.clear();
return S_OK;
}
//--------------------------------------------------------------------------------------
namespace DirectX
{
extern bool _IsWIC2() noexcept;
extern IWICImagingFactory* _GetWIC() noexcept;
}
_Use_decl_annotations_
HRESULT DirectX::SaveWICTextureToFile(
ID3D11DeviceContext* pContext,
ID3D11Resource* pSource,
REFGUID guidContainerFormat,
const wchar_t* fileName,
const GUID* targetFormat,
std::function<void(IPropertyBag2*)> setCustomProps,
bool forceSRGB)
{
if (!fileName)
return E_INVALIDARG;
D3D11_TEXTURE2D_DESC desc = {};
ComPtr<ID3D11Texture2D> 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:
DebugTrace("ERROR: ScreenGrab does not support all DXGI formats (%u). Consider using DirectXTex.\n", static_cast<uint32_t>(desc.Format));
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
}
auto pWIC = _GetWIC();
if (!pWIC)
return E_NOINTERFACE;
ComPtr<IWICStream> 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<IWICBitmapEncoder> 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<IWICBitmapFrameEncode> frame;
ComPtr<IPropertyBag2> props;
hr = encoder->CreateNewFrame(frame.GetAddressOf(), props.GetAddressOf());
if (FAILED(hr))
return hr;
if (targetFormat && memcmp(&guidContainerFormat, &GUID_ContainerFormatBmp, sizeof(WICPixelFormatGUID)) == 0 && _IsWIC2())
{
// Opt-in to the WIC2 support for writing 32-bit Windows BMP files with an alpha channel
PROPBAG2 option = {};
option.pstrName = const_cast<wchar_t*>(L"EnableV5Header32bppBGRA");
VARIANT varValue;
varValue.vt = VT_BOOL;
varValue.boolVal = VARIANT_TRUE;
(void)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 (_IsWIC2())
{
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<IWICMetadataQueryWriter> metawriter;
if (SUCCEEDED(frame->GetMetadataQueryWriter(metawriter.GetAddressOf())))
{
PROPVARIANT value;
PropVariantInit(&value);
value.vt = VT_LPSTR;
value.pszVal = const_cast<char*>("DirectXTK");
if (memcmp(&guidContainerFormat, &GUID_ContainerFormatPng, sizeof(GUID)) == 0)
{
// Set Software name
(void)metawriter->SetMetadataByName(L"/tEXt/{str=Software}", &value);
// Set sRGB chunk
if (sRGB)
{
value.vt = VT_UI1;
value.bVal = 0;
(void)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
(void)metawriter->SetMetadataByName(L"/gAMA/ImageGamma", &value);
// remove sRGB chunk which is added by default.
(void)metawriter->RemoveMetadataByName(L"/sRGB/RenderingIntent");
}
}
#if defined(_XBOX_ONE) && defined(_TITLE)
else if (memcmp(&guidContainerFormat, &GUID_ContainerFormatJpeg, sizeof(GUID)) == 0)
{
// Set Software name
(void)metawriter->SetMetadataByName(L"/app1/ifd/{ushort=305}", &value);
if (sRGB)
{
// Set EXIF Colorspace of sRGB
value.vt = VT_UI2;
value.uiVal = 1;
(void)metawriter->SetMetadataByName(L"/app1/ifd/exif/{ushort=40961}", &value);
}
}
else if (memcmp(&guidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID)) == 0)
{
// Set Software name
(void)metawriter->SetMetadataByName(L"/ifd/{ushort=305}", &value);
if (sRGB)
{
// Set EXIF Colorspace of sRGB
value.vt = VT_UI2;
value.uiVal = 1;
(void)metawriter->SetMetadataByName(L"/ifd/exif/{ushort=40961}", &value);
}
}
#else
else
{
// Set Software name
(void)metawriter->SetMetadataByName(L"System.ApplicationName", &value);
if (sRGB)
{
// Set EXIF Colorspace of sRGB
value.vt = VT_UI2;
value.uiVal = 1;
(void)metawriter->SetMetadataByName(L"System.Image.ColorSpace", &value);
}
}
#endif
}
D3D11_MAPPED_SUBRESOURCE mapped;
hr = pContext->Map(pStaging.Get(), 0, D3D11_MAP_READ, 0, &mapped);
if (FAILED(hr))
return hr;
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<IWICBitmap> source;
hr = pWIC->CreateBitmapFromMemory(desc.Width, desc.Height,
pfGuid,
mapped.RowPitch, static_cast<UINT>(imageSize),
static_cast<BYTE*>(mapped.pData), source.GetAddressOf());
if (FAILED(hr))
{
pContext->Unmap(pStaging.Get(), 0);
return hr;
}
ComPtr<IWICFormatConverter> 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<INT>(desc.Width), static_cast<INT>(desc.Height) };
hr = frame->WriteSource(FC.Get(), &rect);
}
else
{
// No conversion required
hr = frame->WritePixels(desc.Height,
mapped.RowPitch, static_cast<UINT>(imageSize),
static_cast<BYTE*>(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;
}