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SPV: Generate the LocalSize Execution Mode for compute shaders.

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This commit is contained in:
John Kessenich
2015-09-16 16:04:05 -06:00
parent 56bab0483a
commit b56a26ab4d
6 changed files with 15 additions and 5 deletions
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3
SPIRV/GlslangToSpv.cpp
View File

@@ -493,6 +493,9 @@ TGlslangToSpvTraverser::TGlslangToSpvTraverser(const glslang::TIntermediate* gls
case EShLangCompute:
builder.addCapability(spv::CapabilityShader);
builder.addExecutionMode(shaderEntry, spv::ExecutionModeLocalSize, glslangIntermediate->getLocalSize(0),
glslangIntermediate->getLocalSize(1),
glslangIntermediate->getLocalSize(2));
break;
default:

12
SPIRV/SpvBuilder.cpp
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@@ -648,14 +648,18 @@ void Builder::addEntryPoint(ExecutionModel model, Function* function, const char
entryPoints.push_back(entryPoint);
}
void Builder::addExecutionMode(Function* entryPoint, ExecutionMode mode, int value)
// Currently relying on the fact that all 'value' of interest are small non-negative values.
void Builder::addExecutionMode(Function* entryPoint, ExecutionMode mode, int value1, int value2, int value3)
{
// TODO: handle multiple optional arguments
Instruction* instr = new Instruction(OpExecutionMode);
instr->addIdOperand(entryPoint->getId());
instr->addImmediateOperand(mode);
if (value >= 0)
instr->addImmediateOperand(value);
if (value1 >= 0)
instr->addImmediateOperand(value1);
if (value2 >= 0)
instr->addImmediateOperand(value2);
if (value3 >= 0)
instr->addImmediateOperand(value3);
executionModes.push_back(instr);
}

2
SPIRV/SpvBuilder.h
View File

@@ -182,7 +182,7 @@ public:
// Methods for adding information outside the CFG.
void addEntryPoint(ExecutionModel, Function*, const char* name);
void addExecutionMode(Function*, ExecutionMode mode, int value = -1);
void addExecutionMode(Function*, ExecutionMode mode, int value1 = -1, int value2 = -1, int value3 = -1);
void addName(Id, const char* name);
void addMemberName(Id, int member, const char* name);
void addLine(Id target, Id fileName, int line, int column);