Bug 149174

Summary: [WebGL] Only require that the stencil value and write masks have as many bits set as the stencil buffer is deep
Product: WebKit Reporter: Jinyoung Hur <hur.ims>
Component: WebGLAssignee: Jinyoung Hur <hur.ims>
Severity: Normal CC: commit-queue, dino
Priority: P2    
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
Description Flags
Patch none

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.