Skip to content
  • commit-queue@webkit.org's avatar
    [Cairo] Canvas putImageData is not working as expected · dc967a9c
    commit-queue@webkit.org authored
    https://bugs.webkit.org/show_bug.cgi?id=119992
    
    Patch by Hurnjoo Lee <hurnjoo.lee@samsung.com> on 2013-08-19
    Reviewed by Darin Adler.
    
    Source/WebCore:
    
    ImageBufferCairo::putImageArray didn't perform pre-multiply in case of zero alpha value.
    If the alpha value is not 255, image data should always be pre-multiplied.
    
    Test: fast/canvas/canvas-putImageData-zero-alpha.html
    
    * platform/graphics/cairo/ImageBufferCairo.cpp:
    (WebCore::ImageBuffer::putByteArray):
    
    LayoutTests:
    
    Add a ref test that ensures that putImageData of canvas with zero alpha work correctly.
    
    * fast/canvas/canvas-putImageData-zero-alpha-expected.html: Added.
    * fast/canvas/canvas-putImageData-zero-alpha.html: Added.
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154316 268f45cc-cd09-0410-ab3c-d52691b4dbfc
    dc967a9c