| /* |
| * 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 "glsl/GrGLSLColorSpaceXformHelper.h" |
| #include "glsl/GrGLSLFragmentProcessor.h" |
| #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| |
| class GrGLSimpleTextureEffect : public GrGLSLFragmentProcessor { |
| public: |
| void emitCode(EmitArgs& args) override { |
| const GrSimpleTextureEffect& textureEffect = args.fFp.cast<GrSimpleTextureEffect>(); |
| GrGLSLColorSpaceXformHelper colorSpaceHelper(args.fUniformHandler, |
| textureEffect.colorSpaceXform(), |
| &fColorSpaceXformUni); |
| |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| fragBuilder->codeAppendf("%s = ", args.fOutputColor); |
| fragBuilder->appendTextureLookupAndModulate(args.fInputColor, |
| args.fTexSamplers[0], |
| args.fTransformedCoords[0].c_str(), |
| args.fTransformedCoords[0].getType(), |
| &colorSpaceHelper); |
| fragBuilder->codeAppend(";"); |
| } |
| |
| static inline void GenKey(const GrProcessor& effect, const GrGLSLCaps&, |
| GrProcessorKeyBuilder* b) { |
| const GrSimpleTextureEffect& textureEffect = effect.cast<GrSimpleTextureEffect>(); |
| b->add32(GrColorSpaceXform::XformKey(textureEffect.colorSpaceXform())); |
| } |
| |
| protected: |
| void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& processor) override { |
| const GrSimpleTextureEffect& textureEffect = processor.cast<GrSimpleTextureEffect>(); |
| if (SkToBool(textureEffect.colorSpaceXform())) { |
| pdman.setSkMatrix44(fColorSpaceXformUni, textureEffect.colorSpaceXform()->srcToDst()); |
| } |
| } |
| |
| private: |
| typedef GrGLSLFragmentProcessor INHERITED; |
| |
| UniformHandle fColorSpaceXformUni; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrSimpleTextureEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
| this->updateInvariantOutputForModulation(inout); |
| } |
| |
| void GrSimpleTextureEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| GrGLSimpleTextureEffect::GenKey(*this, caps, b); |
| } |
| |
| GrGLSLFragmentProcessor* GrSimpleTextureEffect::onCreateGLSLInstance() const { |
| return new GrGLSimpleTextureEffect; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSimpleTextureEffect); |
| |
| sk_sp<GrFragmentProcessor> GrSimpleTextureEffect::TestCreate(GrProcessorTestData* d) { |
| int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx : |
| GrProcessorUnitTest::kAlphaTextureIdx; |
| static const SkShader::TileMode kTileModes[] = { |
| SkShader::kClamp_TileMode, |
| SkShader::kRepeat_TileMode, |
| SkShader::kMirror_TileMode, |
| }; |
| SkShader::TileMode tileModes[] = { |
| kTileModes[d->fRandom->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| kTileModes[d->fRandom->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| }; |
| GrSamplerParams params(tileModes, d->fRandom->nextBool() ? GrSamplerParams::kBilerp_FilterMode : |
| GrSamplerParams::kNone_FilterMode); |
| |
| const SkMatrix& matrix = GrTest::TestMatrix(d->fRandom); |
| auto colorSpaceXform = GrTest::TestColorXform(d->fRandom); |
| return GrSimpleTextureEffect::Make(d->fTextures[texIdx], colorSpaceXform, matrix); |
| } |