Title: [146607] trunk/Source/WebCore
- Revision
- 146607
- Author
- [email protected]
- Date
- 2013-03-22 07:28:56 -0700 (Fri, 22 Mar 2013)
Log Message
[EFL][WebGL] Optimize AlphaOp for HTMLVideoElement input.
https://bugs.webkit.org/show_bug.cgi?id=113049
Patch by Kondapally Kalyan <[email protected]> on 2013-03-22
Reviewed by Kenneth Rohde Christiansen.
Covered by existing tests.
Changeset 137397 implemented optimisation to avoid any
unnecessary Unmultiply or Premultiply operation in unpack/pack
provided the Image source is from HTMLVideoElement. This patch
enables the same for EFL port.
* platform/graphics/efl/GraphicsContext3DEfl.cpp:
(WebCore::GraphicsContext3D::ImageExtractor::extractImage):
Modified Paths
Diff
Modified: trunk/Source/WebCore/ChangeLog (146606 => 146607)
--- trunk/Source/WebCore/ChangeLog 2013-03-22 14:27:46 UTC (rev 146606)
+++ trunk/Source/WebCore/ChangeLog 2013-03-22 14:28:56 UTC (rev 146607)
@@ -1,3 +1,20 @@
+2013-03-22 Kondapally Kalyan <[email protected]>
+
+ [EFL][WebGL] Optimize AlphaOp for HTMLVideoElement input.
+ https://bugs.webkit.org/show_bug.cgi?id=113049
+
+ Reviewed by Kenneth Rohde Christiansen.
+
+ Covered by existing tests.
+
+ Changeset 137397 implemented optimisation to avoid any
+ unnecessary Unmultiply or Premultiply operation in unpack/pack
+ provided the Image source is from HTMLVideoElement. This patch
+ enables the same for EFL port.
+
+ * platform/graphics/efl/GraphicsContext3DEfl.cpp:
+ (WebCore::GraphicsContext3D::ImageExtractor::extractImage):
+
2013-03-22 Tommy Widenflycht <[email protected]>
Clean up the speech recognintion API
Modified: trunk/Source/WebCore/platform/graphics/efl/GraphicsContext3DEfl.cpp (146606 => 146607)
--- trunk/Source/WebCore/platform/graphics/efl/GraphicsContext3DEfl.cpp 2013-03-22 14:27:46 UTC (rev 146606)
+++ trunk/Source/WebCore/platform/graphics/efl/GraphicsContext3DEfl.cpp 2013-03-22 14:28:56 UTC (rev 146607)
@@ -268,8 +268,11 @@
} else {
NativeImageCairo* nativeImage = m_image->nativeImageForCurrentFrame();
m_imageSurface = (nativeImage) ? nativeImage->surface() : 0;
-
- if (!premultiplyAlpha)
+ // 1. For texImage2D with HTMLVideoElment input, assume no PremultiplyAlpha had been applied and the alpha value is 0xFF for each pixel,
+ // which is true at present and may be changed in the future and needs adjustment accordingly.
+ // 2. For texImage2D with HTMLCanvasElement input in which Alpha is already Premultiplied in this port,
+ // do AlphaDoUnmultiply if UNPACK_PREMULTIPLY_ALPHA_WEBGL is set to false.
+ if (!premultiplyAlpha && m_imageHtmlDomSource != HtmlDomVideo)
m_alphaOp = AlphaDoUnmultiply;
}
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