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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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5
glslang/MachineIndependent/Scan.cpp
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@ -798,8 +798,9 @@ int TScanContext::tokenizeIdentifier()
case SAMPLER2DRECT:
case SAMPLER2DRECTSHADOW:
afterType = true;
if (parseContext.profile == EEsProfile ||
(parseContext.profile != EEsProfile && parseContext.version < 140))
if (parseContext.profile == EEsProfile)
reservedWord();
else if (parseContext.version < 140 && ! parseContext.symbolTable.atBuiltInLevel() && ! parseContext.extensionsTurnedOn(1, &GL_ARB_texture_rectangle))
reservedWord();
return keyword;