| 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 | 9 |
| 10 #include "gl/GrGLEffect.h" | 10 #include "gl/GrGLEffect.h" |
| 11 #include "gl/GrGLSL.h" | 11 #include "gl/GrGLSL.h" |
| 12 #include "GrTBackendEffectFactory.h" | 12 #include "GrTBackendEffectFactory.h" |
| 13 | 13 |
| 14 #include "SkRect.h" | 14 #include "SkRect.h" |
| 15 | 15 |
| 16 ////////////////////////////////////////////////////////////////////////////// | 16 ////////////////////////////////////////////////////////////////////////////// |
| 17 | 17 |
| 18 class GLDitherEffect; | 18 class GLDitherEffect; |
| 19 | 19 |
| 20 class DitherEffect : public GrEffect { | 20 class DitherEffect : public GrEffect { |
| 21 public: | 21 public: |
| 22 static GrEffectRef* Create() { | 22 static GrEffect* Create() { |
| 23 GR_CREATE_STATIC_EFFECT(gDitherEffect, DitherEffect, ()) | 23 GR_CREATE_STATIC_EFFECT(gDitherEffect, DitherEffect, ()) |
| 24 return SkRef(gDitherEffect); | 24 return SkRef(gDitherEffect); |
| 25 } | 25 } |
| 26 | 26 |
| 27 virtual ~DitherEffect() {}; | 27 virtual ~DitherEffect() {}; |
| 28 static const char* Name() { return "Dither"; } | 28 static const char* Name() { return "Dither"; } |
| 29 | 29 |
| 30 typedef GLDitherEffect GLEffect; | 30 typedef GLDitherEffect GLEffect; |
| 31 | 31 |
| 32 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags
) const SK_OVERRIDE; | 32 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags
) const SK_OVERRIDE; |
| (...skipping 16 matching lines...) Expand all Loading... |
| 49 }; | 49 }; |
| 50 | 50 |
| 51 void DitherEffect::getConstantColorComponents(GrColor* color, uint32_t* validFla
gs) const { | 51 void DitherEffect::getConstantColorComponents(GrColor* color, uint32_t* validFla
gs) const { |
| 52 *validFlags = 0; | 52 *validFlags = 0; |
| 53 } | 53 } |
| 54 | 54 |
| 55 ////////////////////////////////////////////////////////////////////////////// | 55 ////////////////////////////////////////////////////////////////////////////// |
| 56 | 56 |
| 57 GR_DEFINE_EFFECT_TEST(DitherEffect); | 57 GR_DEFINE_EFFECT_TEST(DitherEffect); |
| 58 | 58 |
| 59 GrEffectRef* DitherEffect::TestCreate(SkRandom*, | 59 GrEffect* DitherEffect::TestCreate(SkRandom*, |
| 60 GrContext*, | 60 GrContext*, |
| 61 const GrDrawTargetCaps&, | 61 const GrDrawTargetCaps&, |
| 62 GrTexture*[]) { | 62 GrTexture*[]) { |
| 63 return DitherEffect::Create(); | 63 return DitherEffect::Create(); |
| 64 } | 64 } |
| 65 | 65 |
| 66 ////////////////////////////////////////////////////////////////////////////// | 66 ////////////////////////////////////////////////////////////////////////////// |
| 67 | 67 |
| 68 class GLDitherEffect : public GrGLEffect { | 68 class GLDitherEffect : public GrGLEffect { |
| 69 public: | 69 public: |
| 70 GLDitherEffect(const GrBackendEffectFactory&, const GrDrawEffect&); | 70 GLDitherEffect(const GrBackendEffectFactory&, const GrDrawEffect&); |
| 71 | 71 |
| 72 virtual void emitCode(GrGLShaderBuilder* builder, | 72 virtual void emitCode(GrGLShaderBuilder* builder, |
| (...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 104 // it up or let it remain constant during quantization. | 104 // it up or let it remain constant during quantization. |
| 105 builder->fsCodeAppendf("\t\tfloat r = " | 105 builder->fsCodeAppendf("\t\tfloat r = " |
| 106 "fract(sin(dot(%s.xy ,vec2(12.9898,78.233))) * 43758.
5453);\n", | 106 "fract(sin(dot(%s.xy ,vec2(12.9898,78.233))) * 43758.
5453);\n", |
| 107 builder->fragmentPosition()); | 107 builder->fragmentPosition()); |
| 108 builder->fsCodeAppendf("\t\t%s = (1.0/255.0) * vec4(r, r, r, r) + %s;\n", | 108 builder->fsCodeAppendf("\t\t%s = (1.0/255.0) * vec4(r, r, r, r) + %s;\n", |
| 109 outputColor, GrGLSLExpr4(inputColor).c_str()); | 109 outputColor, GrGLSLExpr4(inputColor).c_str()); |
| 110 } | 110 } |
| 111 | 111 |
| 112 ////////////////////////////////////////////////////////////////////////////// | 112 ////////////////////////////////////////////////////////////////////////////// |
| 113 | 113 |
| 114 GrEffectRef* GrDitherEffect::Create() { | 114 GrEffect* GrDitherEffect::Create() { return DitherEffect::Create(); } |
| 115 return DitherEffect::Create(); | |
| 116 } | |
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