1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2015 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "GrGLSLFragmentProcessor.h" 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "GrFragmentProcessor.h" 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "GrProcessor.h" 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "glsl/GrGLSLFragmentShaderBuilder.h" 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "glsl/GrGLSLUniformHandler.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotvoid GrGLSLFragmentProcessor::setData(const GrGLSLProgramDataManager& pdman, 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const GrFragmentProcessor& processor) { 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot this->onSetData(pdman, processor); 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(fChildProcessors.count() == processor.numChildProcessors()); 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int i = 0; i < fChildProcessors.count(); ++i) { 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fChildProcessors[i]->setData(pdman, processor.childProcessor(i)); 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotvoid GrGLSLFragmentProcessor::emitChild(int childIndex, const char* inputColor, EmitArgs& args) { 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot this->internalEmitChild(childIndex, inputColor, args.fOutputColor, args); 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotvoid GrGLSLFragmentProcessor::emitChild(int childIndex, const char* inputColor, 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkString* outputColor, EmitArgs& args) { 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(outputColor); 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot outputColor->append(fragBuilder->getMangleString()); 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->codeAppendf("half4 %s;", outputColor->c_str()); 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot this->internalEmitChild(childIndex, inputColor, outputColor->c_str(), args); 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotvoid GrGLSLFragmentProcessor::internalEmitChild(int childIndex, const char* inputColor, 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const char* outputColor, EmitArgs& args) { 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(inputColor); 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->onBeforeChildProcEmitCode(); // call first so mangleString is updated 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot const GrFragmentProcessor& childProc = args.fFp.childProcessor(childIndex); 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // emit the code for the child in its own scope 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->codeAppend("{\n"); 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->codeAppendf("// Child Index %d (mangle: %s): %s\n", childIndex, 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->getMangleString().c_str(), childProc.name()); 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot TransformedCoordVars coordVars = args.fTransformedCoords.childInputs(childIndex); 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot TextureSamplers textureSamplers = args.fTexSamplers.childInputs(childIndex); 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot TexelBuffers texelBuffers = args.fTexelBuffers.childInputs(childIndex); 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot EmitArgs childArgs(fragBuilder, 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot args.fUniformHandler, 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot args.fShaderCaps, 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot childProc, 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot outputColor, 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot inputColor, 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot coordVars, 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot textureSamplers, 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot texelBuffers); 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot this->childProcessor(childIndex)->emitCode(childArgs); 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->codeAppend("}\n"); 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fragBuilder->onAfterChildProcEmitCode(); 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot////////////////////////////////////////////////////////////////////////////// 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team RobotGrGLSLFragmentProcessor* GrGLSLFragmentProcessor::Iter::next() { 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot if (fFPStack.empty()) { 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return nullptr; 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrGLSLFragmentProcessor* back = fFPStack.back(); 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fFPStack.pop_back(); 75fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot for (int i = back->numChildProcessors() - 1; i >= 0; --i) { 76fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fFPStack.push_back(back->childProcessor(i)); 77fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 78fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return back; 79fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 80