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Bug 596034 - make sure gl_PointCoord is available in the shader language - r=vladimir, a=blocking-beta7

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This commit is contained in:
Benoit Jacob 2010-09-27 16:20:15 -04:00
parent 868cedad20
commit b4b87e2c68
1 changed files with 5 additions and 0 deletions
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5
content/canvas/src/WebGLContextValidate.cpp
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@ -450,6 +450,11 @@ WebGLContext::InitAndValidateGL()
// gl_PointSize is always available in ES2 GLSL, but has to be
// specifically enabled on desktop GLSL.
gl->fEnable(LOCAL_GL_VERTEX_PROGRAM_POINT_SIZE);
// gl_PointCoord is always available in ES2 GLSL and in newer desktop GLSL versions, but apparently
// not in OpenGL 2 and apparently not (due to a driver bug) on certain NVIDIA setups. See:
// http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=261472
gl->fEnable(LOCAL_GL_POINT_SPRITE);
}
// Check the shader validator pref