Cleanup of shader building system

src/gpu/gl/builders/GrGLFragmentOnlyProgramBuilder.cpp

-/*
- * 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 "GrGLFragmentOnlyProgramBuilder.h"
-#include "../GrGpuGL.h"
-
-GrGLFragmentOnlyProgramBuilder::GrGLFragmentOnlyProgramBuilder(GrGpuGL* gpu,
-                                                               const GrOptDrawState& optState,
-                                                               const GrGLProgramDesc& desc)
-    : INHERITED(gpu, optState, desc) {
-    SkASSERT(desc.getHeader().fUseFragShaderOnly);
-    SkASSERT(gpu->glCaps().pathRenderingSupport());
-    SkASSERT(GrGLProgramDesc::kAttribute_ColorInput != desc.getHeader().fColorInput);
-    SkASSERT(GrGLProgramDesc::kAttribute_ColorInput != desc.getHeader().fCoverageInput);
-}
-
-int GrGLFragmentOnlyProgramBuilder::addTexCoordSets(int count) {
-    int firstFreeCoordSet = fTexCoordSetCnt;
-    fTexCoordSetCnt += count;
-    SkASSERT(gpu()->glCaps().maxFixedFunctionTextureCoords() >= fTexCoordSetCnt);
-    return firstFreeCoordSet;
-}
-
-void
-GrGLFragmentOnlyProgramBuilder::createAndEmitEffects(const GrGeometryStage* geometryProcessor,
-                                                     const GrFragmentStage* colorStages[],
-                                                     const GrFragmentStage* coverageStages[],
-                                                     GrGLSLExpr4* inputColor,
-                                                     GrGLSLExpr4* inputCoverage) {
-    ///////////////////////////////////////////////////////////////////////////
-    // emit the per-effect code for both color and coverage effects
-
-    EffectKeyProvider colorKeyProvider(&this->desc(), EffectKeyProvider::kColor_EffectType);
-    fColorEffects.reset(this->onCreateAndEmitEffects(colorStages,
-                                                     this->desc().numColorEffects(),
-                                                     colorKeyProvider,
-                                                     inputColor));
-
-    EffectKeyProvider coverageKeyProvider(&this->desc(), EffectKeyProvider::kCoverage_EffectType);
-    fCoverageEffects.reset(this->onCreateAndEmitEffects(coverageStages,
-                                                        this->desc().numCoverageEffects(),
-                                                        coverageKeyProvider,
-                                                        inputCoverage));
-}
-
-GrGLProgramEffects* GrGLFragmentOnlyProgramBuilder::onCreateAndEmitEffects(
-        const GrFragmentStage* effectStages[], int effectCnt,
-        const GrGLProgramDesc::EffectKeyProvider& keyProvider, GrGLSLExpr4* inOutFSColor) {
-    fProgramEffects.reset(SkNEW_ARGS(GrGLPathTexGenProgramEffects, (effectCnt)));
-    this->INHERITED::createAndEmitEffects(effectStages,
-                                          effectCnt,
-                                          keyProvider,
-                                          inOutFSColor);
-    return fProgramEffects.detach();
-}
-
-void GrGLFragmentOnlyProgramBuilder::emitEffect(const GrProcessorStage& stage,
-                                                const GrProcessorKey& key,
-                                                const char* outColor,
-                                                const char* inColor,
-                                                int stageIndex) {
-    SkASSERT(fProgramEffects.get());
-    const GrProcessor& effect = *stage.getProcessor();
-
-    SkSTArray<2, GrGLProcessor::TransformedCoords> coords(effect.numTransforms());
-    SkSTArray<4, GrGLProcessor::TextureSampler> samplers(effect.numTextures());
-
-    this->setupPathTexGen(stage, &coords);
-    this->emitSamplers(effect, &samplers);
-
-    SkASSERT(fEffectEmitter);
-    GrGLProcessor* glEffect = fEffectEmitter->createGLInstance();
-    fProgramEffects->addEffect(glEffect);
-
-    GrGLFragmentShaderBuilder* fsBuilder = this->getFragmentShaderBuilder();
-    // Enclose custom code in a block to avoid namespace conflicts
-    SkString openBrace;
-    openBrace.printf("\t{ // Stage %d: %s\n", stageIndex, glEffect->name());
-    fsBuilder->codeAppend(openBrace.c_str());
-
-    fEffectEmitter->emit(key, outColor, inColor, coords, samplers);
-
-    fsBuilder->codeAppend("\t}\n");
-}
-
-void GrGLFragmentOnlyProgramBuilder::setupPathTexGen(
-        const GrProcessorStage& effectStage, GrGLProcessor::TransformedCoordsArray* outCoords) {
-    int numTransforms = effectStage.getProcessor()->numTransforms();
-    int texCoordIndex = this->addTexCoordSets(numTransforms);
-
-    fProgramEffects->addTransforms(texCoordIndex);
-
-    SkString name;
-    for (int t = 0; t < numTransforms; ++t) {
-        GrSLType type =
-                effectStage.isPerspectiveCoordTransform(t, false) ?
-                        kVec3f_GrSLType :
-                        kVec2f_GrSLType;
-
-        name.printf("%s(gl_TexCoord[%i])", GrGLSLTypeString(type), texCoordIndex++);
-        SkNEW_APPEND_TO_TARRAY(outCoords, GrGLProcessor::TransformedCoords, (name, type));
-    }
-}