| /* |
| * 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 "effects/GrSingleTextureEffect.h" |
| #include "gl/GrGLProgramStage.h" |
| #include "gl/GrGLSL.h" |
| #include "gl/GrGLTexture.h" |
| #include "GrProgramStageFactory.h" |
| #include "GrTexture.h" |
| |
| class GrGLSingleTextureEffect : public GrGLProgramStage { |
| public: |
| GrGLSingleTextureEffect(const GrProgramStageFactory& factory, |
| const GrCustomStage& stage) : INHERITED (factory) { } |
| |
| virtual void emitVS(GrGLShaderBuilder* builder, |
| const char* vertexCoords) SK_OVERRIDE { } |
| virtual void emitFS(GrGLShaderBuilder* builder, |
| const char* outputColor, |
| const char* inputColor, |
| const char* samplerName) SK_OVERRIDE { |
| builder->emitDefaultFetch(outputColor, samplerName); |
| } |
| |
| static inline StageKey GenKey(const GrCustomStage&, const GrGLCaps&) { return 0; } |
| |
| private: |
| |
| typedef GrGLProgramStage INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture) |
| : fTexture (texture) { |
| SkSafeRef(fTexture); |
| } |
| |
| GrSingleTextureEffect::~GrSingleTextureEffect() { |
| SkSafeUnref(fTexture); |
| } |
| |
| unsigned int GrSingleTextureEffect::numTextures() const { |
| return 1; |
| } |
| |
| GrTexture* GrSingleTextureEffect::texture(unsigned int index) const { |
| GrAssert(0 == index); |
| return fTexture; |
| } |
| |
| const GrProgramStageFactory& GrSingleTextureEffect::getFactory() const { |
| return GrTProgramStageFactory<GrSingleTextureEffect>::getInstance(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_CUSTOM_STAGE_TEST(GrSingleTextureEffect); |
| |
| GrCustomStage* GrSingleTextureEffect::TestCreate(SkRandom* random, |
| GrContext* context, |
| GrTexture* textures[]) { |
| int texIdx = random->nextBool() ? GrCustomStageUnitTest::kSkiaPMTextureIdx : |
| GrCustomStageUnitTest::kAlphaTextureIdx; |
| return SkNEW_ARGS(GrSingleTextureEffect, (textures[texIdx])); |
| } |