+/**************************************************************************
+ *
+ * Copyright 2013 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#include "dxgistate.hpp"
+
+#ifdef __MINGW32__
+#define nullptr NULL
+#endif
+#include "DirectXTex.h"
+
+
+namespace d3dstate {
+
+
+/**
+ * Convert between DXGI formats.
+ *
+ */
+HRESULT
+ConvertFormat(DXGI_FORMAT SrcFormat,
+ void *SrcData,
+ UINT SrcPitch,
+ DXGI_FORMAT DstFormat,
+ void *DstData,
+ UINT DstPitch,
+ UINT Width, UINT Height)
+{
+ HRESULT hr;
+
+ DirectX::Image SrcImage;
+ DirectX::Image DstImage;
+
+ SrcImage.width = Width;
+ SrcImage.height = Height;
+ SrcImage.format = SrcFormat;
+ SrcImage.rowPitch = SrcPitch;
+ SrcImage.slicePitch = Height * SrcPitch;
+ SrcImage.pixels = (uint8_t*)SrcData;
+
+ DstImage.width = Width;
+ DstImage.height = Height;
+ DstImage.format = DstFormat;
+ DstImage.rowPitch = DstPitch;
+ DstImage.slicePitch = Height * DstPitch;
+ DstImage.pixels = (uint8_t*)DstData;
+
+ DirectX::Rect rect(0, 0, Width, Height);
+
+ if (SrcFormat != DstFormat) {
+ DirectX::ScratchImage ScratchImage;
+ ScratchImage.Initialize2D(DstFormat, Width, Height, 1, 1);
+
+ hr = DirectX::Convert(SrcImage, DstFormat, DirectX::TEX_FILTER_DEFAULT, 0.0f, ScratchImage);
+ if (SUCCEEDED(hr)) {
+ hr = CopyRectangle(*ScratchImage.GetImage(0, 0, 0), rect, DstImage, DirectX::TEX_FILTER_DEFAULT, 0, 0);
+ }
+ } else {
+ hr = CopyRectangle(SrcImage, rect, DstImage, DirectX::TEX_FILTER_DEFAULT, 0, 0);
+ }
+
+ return hr;
+}
+
+
+} /* namespace d3dstate */