Branch: refs/heads/webkitglib/2.46
Home: https://github.com/WebKit/WebKit
Commit: 98a3e23efd46f9fc9f8910ca6b1cba7ff1ca793f
https://github.com/WebKit/WebKit/commit/98a3e23efd46f9fc9f8910ca6b1cba7ff1ca793f
Author: Adrian Perez de Castro <[email protected]>
Date: 2024-11-19 (Tue, 19 Nov 2024)
Changed paths:
M
Source/WebCore/platform/graphics/skia/ImageBufferSkiaAcceleratedBackend.cpp
Log Message:
-----------
Cherry-pick 286795@main (3ca14e7517d7).
https://bugs.webkit.org/show_bug.cgi?id=282915
[GTK][WPE][Skia] Avoid temporary copies in getImageData()
https://bugs.webkit.org/show_bug.cgi?id=282915
Reviewed by Carlos Garcia Campos.
Change ImageBufferSkiaAcceleratedBackend::getPixelBuffer() to avoid
making a temporary scratch buffer with the same size as the canvas
backing SkSurface on each canvas.getImageData() invocation.
As in 285116@main, avoid using the ImageBufferBackend::getPixelBuffer()
helper on a temporary buffer, bring inline the needed calculations for
the source/destination areas, and wrap the PixelBuffer with a SkPixmap
that then gets passed directly to Skia. This way we can always let Skia
do the needed pixel format and alpha component type conversions.
On top of reducing memory usage, this makes the MotionMark Canvas
put/get Image Data test ~10x faster.
Covered by existing layout tests.
*
Source/WebCore/platform/graphics/skia/ImageBufferSkiaAcceleratedBackend.cpp:
(WebCore::ImageBufferSkiaAcceleratedBackend::getPixelBuffer):
Canonical link: https://commits.webkit.org/286795@main
Canonical link: https://commits.webkit.org/282416.289@webkitglib/2.46
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