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GL_ARB_shader_draw_parameters: From @amdrexu, implement extension.

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This commit is contained in:
John Kessenich 2015-10-14 14:10:30 -06:00
parent b5c046e58b
commit da581a2b95
8 changed files with 131 additions and 8 deletions
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17
glslang/MachineIndependent/Initialize.cpp
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@ -1483,6 +1483,13 @@ void TBuiltIns::initialize(int version, EProfile profile)
stageBuiltins[EShLangVertex].append(
"int gl_InstanceID;" // needs qualifier fixed later
);
if (version >= 440) {
stageBuiltins[EShLangVertex].append(
"in int gl_BaseVertexARB;"
"in int gl_BaseInstanceARB;"
"in int gl_DrawIDARB;"
);
}
} else {
// ES profile
if (version == 100) {
@ -2890,6 +2897,16 @@ void IdentifyBuiltIns(int version, EProfile profile, EShLanguage language, TSymb
switch(language) {
case EShLangVertex:
if (profile != EEsProfile && version >= 440) {
symbolTable.setVariableExtensions("gl_BaseVertexARB", 1, &E_GL_ARB_shader_draw_parameters);
symbolTable.setVariableExtensions("gl_BaseInstanceARB", 1, &E_GL_ARB_shader_draw_parameters);
symbolTable.setVariableExtensions("gl_DrawIDARB", 1, &E_GL_ARB_shader_draw_parameters);
BuiltInVariable("gl_BaseVertexARB", EbvBaseVertex, symbolTable);
BuiltInVariable("gl_BaseInstanceARB", EbvBaseInstance, symbolTable);
BuiltInVariable("gl_DrawIDARB", EbvDrawId, symbolTable);
}
// Compatibility variables, vertex only
BuiltInVariable("gl_Color", EbvColor, symbolTable);
BuiltInVariable("gl_SecondaryColor", EbvSecondaryColor, symbolTable);