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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "glsl/GrGLSLProgramBuilder.h"
const int GrGLSLProgramBuilder::kVarsPerBlock = 8;
GrGLSLProgramBuilder::GrGLSLProgramBuilder(const DrawArgs& args)
: fVS(this)
, fGS(this)
, fFS(this, args.fDesc->header().fFragPosKey)
, fStageIndex(-1)
, fArgs(args) {
}
void GrGLSLProgramBuilder::nameVariable(SkString* out, char prefix, const char* name, bool mangle) {
if ('\0' == prefix) {
*out = name;
} else {
out->printf("%c%s", prefix, name);
}
if (mangle) {
if (out->endsWith('_')) {
// Names containing "__" are reserved.
out->append("x");
}
out->appendf("_Stage%d%s", fStageIndex, fFS.getMangleString().c_str());
}
}
void GrGLSLProgramBuilder::appendUniformDecls(ShaderVisibility visibility,
SkString* out) const {
this->uniformHandler()->appendUniformDecls(visibility, out);
}
void GrGLSLProgramBuilder::addRTAdjustmentUniform(GrSLPrecision precision,
const char* name,
const char** outName) {
SkASSERT(!fUniformHandles.fRTAdjustmentUni.isValid());
fUniformHandles.fRTAdjustmentUni =
this->uniformHandler()->addUniform(GrGLSLUniformHandler::kVertex_Visibility,
kVec4f_GrSLType,
precision,
name,
outName);
}
void GrGLSLProgramBuilder::addRTHeightUniform(const char* name, const char** outName) {
SkASSERT(!fUniformHandles.fRTHeightUni.isValid());
GrGLSLUniformHandler* uniformHandler = this->uniformHandler();
fUniformHandles.fRTHeightUni =
uniformHandler->internalAddUniformArray(GrGLSLUniformHandler::kFragment_Visibility,
kFloat_GrSLType, kDefault_GrSLPrecision,
name, false, 0, outName);
}
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