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Bug 1254010 - Scaling during RGB -> YUV conversion with BasicCompositor if possible. basic_compositor_video improved on windows. r=jrmuizel

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This commit is contained in:
Sotaro Ikeda
2016-08-15 18:54:17 -07:00
parent dca0d3a56e
commit 48c6111a0a
4 changed files with 117 additions and 0 deletions
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26
gfx/layers/ImageDataSerializer.cpp
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@@ -218,6 +218,32 @@ DataSourceSurfaceFromYCbCrDescriptor(uint8_t* aBuffer, const YCbCrDescriptor& aD
return result.forget();
}
void
ConvertAndScaleFromYCbCrDescriptor(uint8_t* aBuffer,
const YCbCrDescriptor& aDescriptor,
const gfx::SurfaceFormat& aDestFormat,
const gfx::IntSize& aDestSize,
unsigned char* aDestBuffer,
int32_t aStride)
{
MOZ_ASSERT(aBuffer);
gfx::IntSize ySize = aDescriptor.ySize();
gfx::IntSize cbCrSize = aDescriptor.cbCrSize();
int32_t yStride = ySize.width;
int32_t cbCrStride = cbCrSize.width;
layers::PlanarYCbCrData ycbcrData;
ycbcrData.mYChannel = GetYChannel(aBuffer, aDescriptor);
ycbcrData.mYStride = yStride;
ycbcrData.mYSize = ySize;
ycbcrData.mCbChannel = GetCbChannel(aBuffer, aDescriptor);
ycbcrData.mCrChannel = GetCrChannel(aBuffer, aDescriptor);
ycbcrData.mCbCrStride = cbCrStride;
ycbcrData.mCbCrSize = cbCrSize;
ycbcrData.mPicSize = ySize;
gfx::ConvertYCbCrToRGB(ycbcrData, aDestFormat, aDestSize, aDestBuffer, aStride);
}
} // namespace ImageDataSerializer
} // namespace layers