[Webkit-unassigned] [Bug 52141] [Chromium] Issue 57432: Layout Test fast/canvas/drawImage-with-negative-source-destination.html failing with --accelerated-2d-canvas

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jan 10 07:14:10 PST 2011


--- Comment #3 from Stephen White <senorblanco at chromium.org>  2011-01-10 07:14:09 PST ---
(From update of attachment 78379)
View in context: https://bugs.webkit.org/attachment.cgi?id=78379&action=review

> WebCore/platform/graphics/gpu/TexShader.cpp:58
> +        "    gl_TexCoord[0] = texMatrix * position;\n"

This fix doesn't make sense to me.  AFAIK, gl_TexCoord is not available in OpenGL ES 2.0 (and deprecated as of desktop GLSL 1.3) and we shouldn't be introducing it into new code.  It's possible that this worked due to some kind of artifact of the GLES2 -> desktop GL translation, but we shouldn't be relying on that.

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