| /* |
| * 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/GrGLEffect.h" |
| #include "gl/GrGLEffectMatrix.h" |
| #include "gl/GrGLSL.h" |
| #include "gl/GrGLTexture.h" |
| #include "GrTBackendEffectFactory.h" |
| #include "GrTexture.h" |
| |
| class GrGLSingleTextureEffect : public GrGLEffect { |
| public: |
| GrGLSingleTextureEffect(const GrBackendEffectFactory& factory, const GrEffect&) |
| : INHERITED (factory) { |
| fRequiresTextureMatrix = false; |
| } |
| |
| virtual void emitCode(GrGLShaderBuilder* builder, |
| const GrEffectStage&, |
| EffectKey key, |
| const char* vertexCoords, |
| const char* outputColor, |
| const char* inputColor, |
| const TextureSamplerArray& samplers) SK_OVERRIDE { |
| const char* coordName; |
| GrSLType coordType = fEffectMatrix.emitCode(builder, key, vertexCoords, &coordName); |
| builder->fFSCode.appendf("\t%s = ", outputColor); |
| builder->appendTextureLookupAndModulate(&builder->fFSCode, |
| inputColor, |
| samplers[0], |
| coordName, |
| coordType); |
| builder->fFSCode.append(";\n"); |
| } |
| |
| static inline EffectKey GenKey(const GrEffectStage& stage, const GrGLCaps&) { |
| const GrSingleTextureEffect& ste = |
| static_cast<const GrSingleTextureEffect&>(*stage.getEffect()); |
| return GrGLEffectMatrix::GenKey(ste.getMatrix(), |
| stage.getCoordChangeMatrix(), |
| ste.texture(0)); |
| } |
| |
| virtual void setData(const GrGLUniformManager& uman, const GrEffectStage& stage) SK_OVERRIDE { |
| const GrSingleTextureEffect& ste = |
| static_cast<const GrSingleTextureEffect&>(*stage.getEffect()); |
| fEffectMatrix.setData(uman, ste.getMatrix(), stage.getCoordChangeMatrix(), ste.texture(0)); |
| } |
| |
| private: |
| GrGLEffectMatrix fEffectMatrix; |
| typedef GrGLEffect INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture) |
| : INHERITED(1) |
| , fTextureAccess(texture) { |
| fMatrix.reset(); |
| } |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture, bool bilerp) |
| : INHERITED(1) |
| , fTextureAccess(texture, bilerp) { |
| fMatrix.reset(); |
| } |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture, const GrTextureParams& params) |
| : INHERITED(1) |
| , fTextureAccess(texture, params) { |
| fMatrix.reset(); |
| } |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture, const SkMatrix& m) |
| : INHERITED(1) |
| , fTextureAccess(texture) |
| , fMatrix(m) { |
| } |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture, const SkMatrix& m, bool bilerp) |
| : INHERITED(1) |
| , fTextureAccess(texture, bilerp) |
| , fMatrix(m) { |
| } |
| |
| GrSingleTextureEffect::GrSingleTextureEffect(GrTexture* texture, |
| const SkMatrix& m, |
| const GrTextureParams& params) |
| : INHERITED(1) |
| , fTextureAccess(texture, params) |
| , fMatrix(m) { |
| } |
| |
| GrSingleTextureEffect::~GrSingleTextureEffect() { |
| } |
| |
| const GrTextureAccess& GrSingleTextureEffect::textureAccess(int index) const { |
| GrAssert(0 == index); |
| return fTextureAccess; |
| } |
| |
| const GrBackendEffectFactory& GrSingleTextureEffect::getFactory() const { |
| return GrTBackendEffectFactory<GrSingleTextureEffect>::getInstance(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_EFFECT_TEST(GrSingleTextureEffect); |
| |
| GrEffect* GrSingleTextureEffect::TestCreate(SkRandom* random, |
| GrContext* context, |
| GrTexture* textures[]) { |
| int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx : |
| GrEffectUnitTest::kAlphaTextureIdx; |
| const SkMatrix& matrix = GrEffectUnitTest::TestMatrix(random); |
| return SkNEW_ARGS(GrSingleTextureEffect, (textures[texIdx], matrix)); |
| } |