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RESOLVED FIXED
136734
Check for varying packing restrictions per program instead of per shader
https://bugs.webkit.org/show_bug.cgi?id=136734
Summary
Check for varying packing restrictions per program instead of per shader
Roger Fong
Reported
2014-09-10 21:39:58 PDT
rdar://problem/16308409
Attachments
patch
(10.67 KB, patch)
2014-09-10 21:50 PDT
,
Roger Fong
no flags
Details
Formatted Diff
Diff
patch
(10.67 KB, patch)
2014-09-11 10:13 PDT
,
Roger Fong
dino
: review+
Details
Formatted Diff
Diff
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proposed patch, testcase, etc.
Roger Fong
Comment 1
2014-09-10 21:50:43 PDT
Created
attachment 237931
[details]
patch
WebKit Commit Bot
Comment 2
2014-09-10 21:52:51 PDT
Note that there are important steps to take when updating ANGLE. See
http://trac.webkit.org/wiki/UpdatingANGLE
Roger Fong
Comment 3
2014-09-10 21:56:43 PDT
The spec says: If the packing algorithm fails either for the uniform variables of a shader or for the varying variables of a program, compilation or linking must fail. I originally understood compilation to mean, the shaders fail to compile (since you don't compile a program, you just link it). But in this case, I think compilation means the same thing as linking.
Roger Fong
Comment 4
2014-09-11 10:13:58 PDT
Created
attachment 237961
[details]
patch with build fix
Dean Jackson
Comment 5
2014-09-11 11:50:18 PDT
Comment on
attachment 237961
[details]
patch View in context:
https://bugs.webkit.org/attachment.cgi?id=237961&action=review
> Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp:368 > + const char* builtIns[] = { > + "gl_FragCoord", > + "gl_FrontFacing", > + "gl_PointCoord" > + }; > + > + bool isBuiltIn = false; > + for (int i = 0; i < 3; ++i) { > + if (symbolName == builtIns[i]) { > + isBuiltIn = true; > + break; > + } > + } > + > + if (isBuiltIn) > + continue;
I don't really have a preference here, but maybe it might be simpler to do if (symbolName == "gl_FragCoord" || symbolName ==...) continue;
Roger Fong
Comment 6
2014-09-11 12:24:26 PDT
Took Dean's suggestion. Committed:
http://trac.webkit.org/changeset/173527
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