| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "GrSimpleTextureEffect.h" |
| #include "GrInvariantOutput.h" |
| #include "GrTexture.h" |
| #include "gl/GrGLCaps.h" |
| #include "gl/GrGLProcessor.h" |
| #include "gl/GrGLSL.h" |
| #include "gl/GrGLTexture.h" |
| #include "gl/builders/GrGLProgramBuilder.h" |
| |
| class GrGLSimpleTextureEffect : public GrGLFragmentProcessor { |
| public: |
| GrGLSimpleTextureEffect(const GrProcessor&) {} |
| |
| virtual void emitCode(GrGLFPBuilder* builder, |
| const GrFragmentProcessor& fp, |
| const char* outputColor, |
| const char* inputColor, |
| const TransformedCoordsArray& coords, |
| const TextureSamplerArray& samplers) override { |
| GrGLFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| fsBuilder->codeAppendf("\t%s = ", outputColor); |
| fsBuilder->appendTextureLookupAndModulate(inputColor, |
| samplers[0], |
| coords[0].c_str(), |
| coords[0].getType()); |
| fsBuilder->codeAppend(";\n"); |
| } |
| |
| private: |
| typedef GrGLFragmentProcessor INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrSimpleTextureEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
| this->updateInvariantOutputForModulation(inout); |
| } |
| |
| void GrSimpleTextureEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| GrGLSimpleTextureEffect::GenKey(*this, caps, b); |
| } |
| |
| GrGLFragmentProcessor* GrSimpleTextureEffect::createGLInstance() const { |
| return SkNEW_ARGS(GrGLSimpleTextureEffect, (*this)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSimpleTextureEffect); |
| |
| GrFragmentProcessor* GrSimpleTextureEffect::TestCreate(SkRandom* random, |
| GrContext*, |
| const GrDrawTargetCaps&, |
| GrTexture* textures[]) { |
| int texIdx = random->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx : |
| GrProcessorUnitTest::kAlphaTextureIdx; |
| static const SkShader::TileMode kTileModes[] = { |
| SkShader::kClamp_TileMode, |
| SkShader::kRepeat_TileMode, |
| SkShader::kMirror_TileMode, |
| }; |
| SkShader::TileMode tileModes[] = { |
| kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| }; |
| GrTextureParams params(tileModes, random->nextBool() ? GrTextureParams::kBilerp_FilterMode : |
| GrTextureParams::kNone_FilterMode); |
| |
| static const GrCoordSet kCoordSets[] = { |
| kLocal_GrCoordSet, |
| kDevice_GrCoordSet |
| }; |
| GrCoordSet coordSet = kCoordSets[random->nextULessThan(SK_ARRAY_COUNT(kCoordSets))]; |
| |
| const SkMatrix& matrix = GrTest::TestMatrix(random); |
| return GrSimpleTextureEffect::Create(textures[texIdx], matrix, coordSet); |
| } |