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SPV GLSL.std.450: Add needed smear operations for min, max, clamp, mix, step, and smoothstep.

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This commit is contained in:
John Kessenich
2015-12-13 13:34:37 -07:00
parent 6feb4989fe
commit e7c83cfb8c
5 changed files with 401 additions and 387 deletions
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8
SPIRV/GlslangToSpv.cpp
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@@ -2871,6 +2871,7 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
libCall = spv::GLSLstd450UMin;
else
libCall = spv::GLSLstd450SMin;
builder.promoteScalar(precision, operands.front(), operands.back());
break;
case glslang::EOpModf:
libCall = spv::GLSLstd450Modf;
@@ -2882,6 +2883,7 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
libCall = spv::GLSLstd450UMax;
else
libCall = spv::GLSLstd450SMax;
builder.promoteScalar(precision, operands.front(), operands.back());
break;
case glslang::EOpPow:
libCall = spv::GLSLstd450Pow;
@@ -2900,18 +2902,24 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
libCall = spv::GLSLstd450UClamp;
else
libCall = spv::GLSLstd450SClamp;
builder.promoteScalar(precision, operands.front(), operands[1]);
builder.promoteScalar(precision, operands.front(), operands[2]);
break;
case glslang::EOpMix:
if (isFloat)
libCall = spv::GLSLstd450FMix;
else
libCall = spv::GLSLstd450IMix;
builder.promoteScalar(precision, operands.front(), operands.back());
break;
case glslang::EOpStep:
libCall = spv::GLSLstd450Step;
builder.promoteScalar(precision, operands.front(), operands.back());
break;
case glslang::EOpSmoothStep:
libCall = spv::GLSLstd450SmoothStep;
builder.promoteScalar(precision, operands[0], operands[2]);
builder.promoteScalar(precision, operands[1], operands[2]);
break;
case glslang::EOpDistance: