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Correct textureGather*() extension support:

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- add extension behavior and warning message for partial extension support
 - add partial support for gpu_shader5 for textureGather*
 - add interactions between texture rectangle and textureGather*
 - add checks to distinguish between gpu_shader5 and texture_gather extension feature differences


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24183 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-11-23 21:10:51 +00:00
parent 5b9f98854c
commit d6bef9186b
11 changed files with 347 additions and 140 deletions
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8
glslang/MachineIndependent/glslang.y
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@ -1717,29 +1717,21 @@ type_specifier_nonarray
$$.sampler.set(EbtUint, EsdCube, true);
}
| SAMPLER2DRECT {
parseContext.profileRequires($1.loc, ENoProfile, 140, GL_ARB_texture_rectangle, "rectangle texture");
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtSampler;
$$.sampler.set(EbtFloat, EsdRect);
}
| SAMPLER2DRECTSHADOW {
parseContext.profileRequires($1.loc, ECoreProfile, 140, GL_ARB_texture_rectangle, "rectangle texture");
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtSampler;
$$.sampler.set(EbtFloat, EsdRect, false, true);
}
| ISAMPLER2DRECT {
parseContext.profileRequires($1.loc, ECoreProfile, 140, GL_ARB_texture_rectangle, "rectangle texture");
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtSampler;
$$.sampler.set(EbtInt, EsdRect);
}
| USAMPLER2DRECT {
parseContext.profileRequires($1.loc, ECoreProfile, 140, GL_ARB_texture_rectangle, "rectangle texture");
$$.init($1.loc, parseContext.symbolTable.atGlobalLevel());
$$.basicType = EbtSampler;
$$.sampler.set(EbtUint, EsdRect);