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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLGeometryShaderBuilder.h"
#include "GrGLProgramBuilder.h"
#include "../GrGLGpu.h"
GrGLGeometryBuilder::GrGLGeometryBuilder(GrGLProgramBuilder* program)
: INHERITED(program) {
}
void GrGLGeometryBuilder::addVarying(const char* name, GrSLPrecision precision, GrGLVarying* v) {
// if we have a GS take each varying in as an array
// and output as non-array.
if (v->vsVarying()) {
fInputs.push_back();
fInputs.back().setType(v->fType);
fInputs.back().setTypeModifier(GrGLShaderVar::kVaryingIn_TypeModifier);
fInputs.back().setPrecision(precision);
fInputs.back().setUnsizedArray();
*fInputs.back().accessName() = v->fVsOut;
v->fGsIn = v->fVsOut;
}
if (v->fsVarying()) {
fOutputs.push_back();
fOutputs.back().setType(v->fType);
fOutputs.back().setTypeModifier(GrGLShaderVar::kVaryingOut_TypeModifier);
fOutputs.back().setPrecision(precision);
fProgramBuilder->nameVariable(fOutputs.back().accessName(), 'g', name);
v->fGsOut = fOutputs.back().getName().c_str();
}
}
bool GrGLGeometryBuilder::compileAndAttachShaders(GrGLuint programId,
SkTDArray<GrGLuint>* shaderIds) {
SkFAIL("Geometry shaders are not currently supported");
return false;
}
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