| OLD | NEW |
| 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 "GrDitherEffect.h" | 8 #include "GrDitherEffect.h" |
| 9 #include "GrFragmentProcessor.h" | 9 #include "GrFragmentProcessor.h" |
| 10 #include "GrInvariantOutput.h" | 10 #include "GrInvariantOutput.h" |
| 11 #include "SkRect.h" | 11 #include "SkRect.h" |
| 12 #include "gl/GrGLProcessor.h" | 12 #include "gl/GrGLProcessor.h" |
| 13 #include "gl/GrGLSL.h" | 13 #include "gl/GrGLSL.h" |
| 14 #include "gl/builders/GrGLProgramBuilder.h" | 14 #include "gl/builders/GrGLProgramBuilder.h" |
| 15 | 15 |
| 16 ////////////////////////////////////////////////////////////////////////////// | 16 ////////////////////////////////////////////////////////////////////////////// |
| 17 | 17 |
| 18 class DitherEffect : public GrFragmentProcessor { | 18 class DitherEffect : public GrFragmentProcessor { |
| 19 public: | 19 public: |
| 20 static GrFragmentProcessor* Create() { | 20 static GrFragmentProcessor* Create() { |
| 21 GR_CREATE_STATIC_PROCESSOR(gDitherEffect, DitherEffect, ()) | 21 GR_CREATE_STATIC_PROCESSOR(gDitherEffect, DitherEffect, ()) |
| 22 return SkRef(gDitherEffect); | 22 return SkRef(gDitherEffect); |
| 23 } | 23 } |
| 24 | 24 |
| 25 virtual ~DitherEffect() {}; | 25 virtual ~DitherEffect() {}; |
| 26 | 26 |
| 27 const char* name() const override { return "Dither"; } | 27 const char* name() const override { return "Dither"; } |
| 28 | 28 |
| 29 void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const overri
de; | 29 void getGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const over
ride; |
| 30 | 30 |
| 31 GrGLFragmentProcessor* createGLInstance() const override; | 31 GrGLFragmentProcessor* createGLInstance() const override; |
| 32 | 32 |
| 33 private: | 33 private: |
| 34 DitherEffect() { | 34 DitherEffect() { |
| 35 this->initClassID<DitherEffect>(); | 35 this->initClassID<DitherEffect>(); |
| 36 this->setWillReadFragmentPosition(); | 36 this->setWillReadFragmentPosition(); |
| 37 } | 37 } |
| 38 | 38 |
| 39 // All dither effects are equal | 39 // All dither effects are equal |
| (...skipping 59 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 99 // it up or let it remain constant during quantization. | 99 // it up or let it remain constant during quantization. |
| 100 fsBuilder->codeAppendf("\t\tfloat r = " | 100 fsBuilder->codeAppendf("\t\tfloat r = " |
| 101 "fract(sin(dot(%s.xy ,vec2(12.9898,78.233))) * 43758.
5453);\n", | 101 "fract(sin(dot(%s.xy ,vec2(12.9898,78.233))) * 43758.
5453);\n", |
| 102 fsBuilder->fragmentPosition()); | 102 fsBuilder->fragmentPosition()); |
| 103 fsBuilder->codeAppendf("\t\t%s = (1.0/255.0) * vec4(r, r, r, r) + %s;\n", | 103 fsBuilder->codeAppendf("\t\t%s = (1.0/255.0) * vec4(r, r, r, r) + %s;\n", |
| 104 outputColor, GrGLSLExpr4(inputColor).c_str()); | 104 outputColor, GrGLSLExpr4(inputColor).c_str()); |
| 105 } | 105 } |
| 106 | 106 |
| 107 ////////////////////////////////////////////////////////////////////////////// | 107 ////////////////////////////////////////////////////////////////////////////// |
| 108 | 108 |
| 109 void DitherEffect::getGLProcessorKey(const GrGLCaps& caps, | 109 void DitherEffect::getGLProcessorKey(const GrGLSLCaps& caps, |
| 110 GrProcessorKeyBuilder* b) const { | 110 GrProcessorKeyBuilder* b) const { |
| 111 GLDitherEffect::GenKey(*this, caps, b); | 111 GLDitherEffect::GenKey(*this, caps, b); |
| 112 } | 112 } |
| 113 | 113 |
| 114 GrGLFragmentProcessor* DitherEffect::createGLInstance() const { | 114 GrGLFragmentProcessor* DitherEffect::createGLInstance() const { |
| 115 return SkNEW_ARGS(GLDitherEffect, (*this)); | 115 return SkNEW_ARGS(GLDitherEffect, (*this)); |
| 116 } | 116 } |
| 117 | 117 |
| 118 GrFragmentProcessor* GrDitherEffect::Create() { return DitherEffect::Create(); } | 118 GrFragmentProcessor* GrDitherEffect::Create() { return DitherEffect::Create(); } |
| OLD | NEW |