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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "GrConvexPolyEffect.h" | 8 #include "GrConvexPolyEffect.h" |
| 9 #include "GrInvariantOutput.h" | 9 #include "GrInvariantOutput.h" |
| 10 #include "SkPathPriv.h" | 10 #include "SkPathPriv.h" |
| 11 #include "gl/GrGLContext.h" | 11 #include "gl/GrGLContext.h" |
| 12 #include "gl/GrGLFragmentProcessor.h" | 12 #include "gl/GrGLFragmentProcessor.h" |
| 13 #include "gl/builders/GrGLProgramBuilder.h" | 13 #include "gl/builders/GrGLProgramBuilder.h" |
| 14 #include "glsl/GrGLSLProgramDataManager.h" |
| 14 | 15 |
| 15 ////////////////////////////////////////////////////////////////////////////// | 16 ////////////////////////////////////////////////////////////////////////////// |
| 16 class AARectEffect : public GrFragmentProcessor { | 17 class AARectEffect : public GrFragmentProcessor { |
| 17 public: | 18 public: |
| 18 const SkRect& getRect() const { return fRect; } | 19 const SkRect& getRect() const { return fRect; } |
| 19 | 20 |
| 20 static GrFragmentProcessor* Create(GrPrimitiveEdgeType edgeType, const SkRec
t& rect) { | 21 static GrFragmentProcessor* Create(GrPrimitiveEdgeType edgeType, const SkRec
t& rect) { |
| 21 return new AARectEffect(edgeType, rect); | 22 return new AARectEffect(edgeType, rect); |
| 22 } | 23 } |
| 23 | 24 |
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| 80 | 81 |
| 81 class GLAARectEffect : public GrGLFragmentProcessor { | 82 class GLAARectEffect : public GrGLFragmentProcessor { |
| 82 public: | 83 public: |
| 83 GLAARectEffect(const GrProcessor&); | 84 GLAARectEffect(const GrProcessor&); |
| 84 | 85 |
| 85 virtual void emitCode(EmitArgs&) override; | 86 virtual void emitCode(EmitArgs&) override; |
| 86 | 87 |
| 87 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessor
KeyBuilder*); | 88 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessor
KeyBuilder*); |
| 88 | 89 |
| 89 protected: | 90 protected: |
| 90 void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; | 91 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override
; |
| 91 | 92 |
| 92 private: | 93 private: |
| 93 GrGLProgramDataManager::UniformHandle fRectUniform; | 94 GrGLSLProgramDataManager::UniformHandle fRectUniform; |
| 94 SkRect fPrevRect; | 95 SkRect fPrevRect; |
| 95 typedef GrGLFragmentProcessor INHERITED; | 96 typedef GrGLFragmentProcessor INHERITED; |
| 96 }; | 97 }; |
| 97 | 98 |
| 98 GLAARectEffect::GLAARectEffect(const GrProcessor& effect) { | 99 GLAARectEffect::GLAARectEffect(const GrProcessor& effect) { |
| 99 fPrevRect.fLeft = SK_ScalarNaN; | 100 fPrevRect.fLeft = SK_ScalarNaN; |
| 100 } | 101 } |
| 101 | 102 |
| 102 void GLAARectEffect::emitCode(EmitArgs& args) { | 103 void GLAARectEffect::emitCode(EmitArgs& args) { |
| 103 const AARectEffect& aare = args.fFp.cast<AARectEffect>(); | 104 const AARectEffect& aare = args.fFp.cast<AARectEffect>(); |
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| 131 fsBuilder->codeAppendf("\t\talpha *= (%s.w - %s.y) > -0.5 ? 1.0 : 0.0;\n
", rectName, fragmentPos); | 132 fsBuilder->codeAppendf("\t\talpha *= (%s.w - %s.y) > -0.5 ? 1.0 : 0.0;\n
", rectName, fragmentPos); |
| 132 } | 133 } |
| 133 | 134 |
| 134 if (GrProcessorEdgeTypeIsInverseFill(aare.getEdgeType())) { | 135 if (GrProcessorEdgeTypeIsInverseFill(aare.getEdgeType())) { |
| 135 fsBuilder->codeAppend("\t\talpha = 1.0 - alpha;\n"); | 136 fsBuilder->codeAppend("\t\talpha = 1.0 - alpha;\n"); |
| 136 } | 137 } |
| 137 fsBuilder->codeAppendf("\t\t%s = %s;\n", args.fOutputColor, | 138 fsBuilder->codeAppendf("\t\t%s = %s;\n", args.fOutputColor, |
| 138 (GrGLSLExpr4(args.fInputColor) * GrGLSLExpr1("alpha")
).c_str()); | 139 (GrGLSLExpr4(args.fInputColor) * GrGLSLExpr1("alpha")
).c_str()); |
| 139 } | 140 } |
| 140 | 141 |
| 141 void GLAARectEffect::onSetData(const GrGLProgramDataManager& pdman, const GrProc
essor& processor) { | 142 void GLAARectEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 143 const GrProcessor& processor) { |
| 142 const AARectEffect& aare = processor.cast<AARectEffect>(); | 144 const AARectEffect& aare = processor.cast<AARectEffect>(); |
| 143 const SkRect& rect = aare.getRect(); | 145 const SkRect& rect = aare.getRect(); |
| 144 if (rect != fPrevRect) { | 146 if (rect != fPrevRect) { |
| 145 pdman.set4f(fRectUniform, rect.fLeft + 0.5f, rect.fTop + 0.5f, | 147 pdman.set4f(fRectUniform, rect.fLeft + 0.5f, rect.fTop + 0.5f, |
| 146 rect.fRight - 0.5f, rect.fBottom - 0.5f); | 148 rect.fRight - 0.5f, rect.fBottom - 0.5f); |
| 147 fPrevRect = rect; | 149 fPrevRect = rect; |
| 148 } | 150 } |
| 149 } | 151 } |
| 150 | 152 |
| 151 void GLAARectEffect::GenKey(const GrProcessor& processor, const GrGLSLCaps&, | 153 void GLAARectEffect::GenKey(const GrProcessor& processor, const GrGLSLCaps&, |
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| 166 | 168 |
| 167 class GrGLConvexPolyEffect : public GrGLFragmentProcessor { | 169 class GrGLConvexPolyEffect : public GrGLFragmentProcessor { |
| 168 public: | 170 public: |
| 169 GrGLConvexPolyEffect(const GrProcessor&); | 171 GrGLConvexPolyEffect(const GrProcessor&); |
| 170 | 172 |
| 171 virtual void emitCode(EmitArgs&) override; | 173 virtual void emitCode(EmitArgs&) override; |
| 172 | 174 |
| 173 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessor
KeyBuilder*); | 175 static inline void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessor
KeyBuilder*); |
| 174 | 176 |
| 175 protected: | 177 protected: |
| 176 void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override; | 178 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override
; |
| 177 | 179 |
| 178 private: | 180 private: |
| 179 GrGLProgramDataManager::UniformHandle fEdgeUniform; | 181 GrGLSLProgramDataManager::UniformHandle fEdgeUniform; |
| 180 SkScalar fPrevEdges[3 * GrConvexPolyEffect::kMa
xEdges]; | 182 SkScalar fPrevEdges[3 * GrConvexPolyEffect::kMa
xEdges]; |
| 181 typedef GrGLFragmentProcessor INHERITED; | 183 typedef GrGLFragmentProcessor INHERITED; |
| 182 }; | 184 }; |
| 183 | 185 |
| 184 GrGLConvexPolyEffect::GrGLConvexPolyEffect(const GrProcessor&) { | 186 GrGLConvexPolyEffect::GrGLConvexPolyEffect(const GrProcessor&) { |
| 185 fPrevEdges[0] = SK_ScalarNaN; | 187 fPrevEdges[0] = SK_ScalarNaN; |
| 186 } | 188 } |
| 187 | 189 |
| 188 void GrGLConvexPolyEffect::emitCode(EmitArgs& args) { | 190 void GrGLConvexPolyEffect::emitCode(EmitArgs& args) { |
| 189 const GrConvexPolyEffect& cpe = args.fFp.cast<GrConvexPolyEffect>(); | 191 const GrConvexPolyEffect& cpe = args.fFp.cast<GrConvexPolyEffect>(); |
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| 215 fsBuilder->codeAppend("\t\tif (-1.0 == alpha) {\n\t\t\tdiscard;\n\t\t}\n
"); | 217 fsBuilder->codeAppend("\t\tif (-1.0 == alpha) {\n\t\t\tdiscard;\n\t\t}\n
"); |
| 216 } | 218 } |
| 217 | 219 |
| 218 if (GrProcessorEdgeTypeIsInverseFill(cpe.getEdgeType())) { | 220 if (GrProcessorEdgeTypeIsInverseFill(cpe.getEdgeType())) { |
| 219 fsBuilder->codeAppend("\talpha = 1.0 - alpha;\n"); | 221 fsBuilder->codeAppend("\talpha = 1.0 - alpha;\n"); |
| 220 } | 222 } |
| 221 fsBuilder->codeAppendf("\t%s = %s;\n", args.fOutputColor, | 223 fsBuilder->codeAppendf("\t%s = %s;\n", args.fOutputColor, |
| 222 (GrGLSLExpr4(args.fInputColor) * GrGLSLExpr1("alpha")
).c_str()); | 224 (GrGLSLExpr4(args.fInputColor) * GrGLSLExpr1("alpha")
).c_str()); |
| 223 } | 225 } |
| 224 | 226 |
| 225 void GrGLConvexPolyEffect::onSetData(const GrGLProgramDataManager& pdman, const
GrProcessor& effect) { | 227 void GrGLConvexPolyEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| 228 const GrProcessor& effect) { |
| 226 const GrConvexPolyEffect& cpe = effect.cast<GrConvexPolyEffect>(); | 229 const GrConvexPolyEffect& cpe = effect.cast<GrConvexPolyEffect>(); |
| 227 size_t byteSize = 3 * cpe.getEdgeCount() * sizeof(SkScalar); | 230 size_t byteSize = 3 * cpe.getEdgeCount() * sizeof(SkScalar); |
| 228 if (0 != memcmp(fPrevEdges, cpe.getEdges(), byteSize)) { | 231 if (0 != memcmp(fPrevEdges, cpe.getEdges(), byteSize)) { |
| 229 pdman.set3fv(fEdgeUniform, cpe.getEdgeCount(), cpe.getEdges()); | 232 pdman.set3fv(fEdgeUniform, cpe.getEdgeCount(), cpe.getEdges()); |
| 230 memcpy(fPrevEdges, cpe.getEdges(), byteSize); | 233 memcpy(fPrevEdges, cpe.getEdges(), byteSize); |
| 231 } | 234 } |
| 232 } | 235 } |
| 233 | 236 |
| 234 void GrGLConvexPolyEffect::GenKey(const GrProcessor& processor, const GrGLSLCaps
&, | 237 void GrGLConvexPolyEffect::GenKey(const GrProcessor& processor, const GrGLSLCaps
&, |
| 235 GrProcessorKeyBuilder* b) { | 238 GrProcessorKeyBuilder* b) { |
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| 348 } | 351 } |
| 349 | 352 |
| 350 GrFragmentProcessor* fp; | 353 GrFragmentProcessor* fp; |
| 351 do { | 354 do { |
| 352 GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>( | 355 GrPrimitiveEdgeType edgeType = static_cast<GrPrimitiveEdgeType>( |
| 353 d->fRandom->nextULessThan(kGrProcessorEdgeTypeCnt)); | 356 d->fRandom->nextULessThan(kGrProcessorEdgeTypeCnt)); |
| 354 fp = GrConvexPolyEffect::Create(edgeType, count, edges); | 357 fp = GrConvexPolyEffect::Create(edgeType, count, edges); |
| 355 } while (nullptr == fp); | 358 } while (nullptr == fp); |
| 356 return fp; | 359 return fp; |
| 357 } | 360 } |
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