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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLSL.h"
#include "SkString.h"
bool GrGLSLSupportsNamedFragmentShaderOutputs(GrGLSLGeneration gen) {
switch (gen) {
case k110_GrGLSLGeneration:
return false;
case k130_GrGLSLGeneration:
case k140_GrGLSLGeneration:
case k150_GrGLSLGeneration:
case k330_GrGLSLGeneration:
case k310es_GrGLSLGeneration:
return true;
}
return false;
}
void GrGLSLMulVarBy4f(SkString* outAppend, const char* vec4VarName, const GrGLSLExpr4& mulFactor) {
if (mulFactor.isOnes()) {
*outAppend = SkString();
}
if (mulFactor.isZeros()) {
outAppend->appendf("%s = vec4(0);", vec4VarName);
} else {
outAppend->appendf("%s *= %s;", vec4VarName, mulFactor.c_str());
}
}
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