Bug 149174 - [WebGL] Only require that the stencil value and write masks have as many bits set as the stencil buffer is deep
Summary: [WebGL] Only require that the stencil value and write masks have as many bits...
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebGL (show other bugs)
Version: Other
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Jinyoung Hur
Depends on:
Reported: 2015-09-15 11:28 PDT by Jinyoung Hur
Modified: 2015-09-15 18:55 PDT (History)
2 users (show)

See Also:

Patch (5.47 KB, patch)
2015-09-15 11:35 PDT, Jinyoung Hur
no flags Details | Formatted Diff | Diff

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Description Jinyoung Hur 2015-09-15 11:28:38 PDT
Regarding the stencil mask value tests, fast/canvas/webgl/gl-get-calls.html seems obsolete compared to webgl/1.0.2/resources/webgl_test_files/conformance/state/gl-get-calls.html.
Comment 1 Jinyoung Hur 2015-09-15 11:35:09 PDT
Created attachment 261220 [details]
Comment 2 Jinyoung Hur 2015-09-15 11:53:28 PDT
Copied from the webgl/1.0.2/resources/webgl_test_files/conformance/state/gl-get-calls.html.

It seems that there is a difference in the way that glGetIntegerV returns an unsigned int type value among OpenGL implementatios.
Some return the whole bits of value(e.g., 0xffffffff -> 0xffffffff), whereas some(e.g., ANGLE) return a max-int-clamped value(e.g., 0xffffffff -> 0x7fffffff).

It would be good to make this test independent on the OpenGL implementations.
Comment 3 WebKit Commit Bot 2015-09-15 18:55:01 PDT
Comment on attachment 261220 [details]

Clearing flags on attachment: 261220

Committed r189838: <http://trac.webkit.org/changeset/189838>
Comment 4 WebKit Commit Bot 2015-09-15 18:55:05 PDT
All reviewed patches have been landed.  Closing bug.