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Calculate buffer size in WICBitmapSource.CopyPixels overloads as w*4*h #1

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Calculate buffer size in WICBitmapSource.CopyPixels overloads as w*4*h #1

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6 changes: 3 additions & 3 deletions WindowsAPICodePack/DirectX/DirectX/WIC/WICBitmapSource.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,7 @@ cli::array<unsigned char>^ BitmapSource::CopyPixels()
rect.Height = size.Height;

// Force the stride to be a multiple of sizeof(DWORD)
UINT stride = rect.Height * 4;
UINT stride = rect.Width * 4;
stride = ((stride + sizeof(DWORD) - 1) / sizeof(DWORD)) * sizeof(DWORD);
UINT bufferSize = stride * rect.Height;

Expand All @@ -106,7 +106,7 @@ IntPtr BitmapSource::CopyPixelsToMemory( BitmapRectangle rectangle )
rect.Height = rectangle.Height;

// Force the stride to be a multiple of sizeof(DWORD)
UINT stride = rect.Height * 4;
UINT stride = rect.Width * 4;
stride = ((stride + sizeof(DWORD) - 1) / sizeof(DWORD)) * sizeof(DWORD);
UINT bufferSize = stride * rect.Height;

Expand All @@ -132,7 +132,7 @@ IntPtr BitmapSource::CopyPixelsToMemory()
rect.Height = size.Height;

// Force the stride to be a multiple of sizeof(DWORD)
UINT stride = rect.Height * 4;
UINT stride = rect.Width * 4;
stride = ((stride + sizeof(DWORD) - 1) / sizeof(DWORD)) * sizeof(DWORD);
UINT bufferSize = stride * rect.Height;

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