| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "SkLumaColorFilter.h" | 8 #include "SkLumaColorFilter.h" |
| 9 | 9 |
| 10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
| 11 #include "SkString.h" | 11 #include "SkString.h" |
| 12 | 12 |
| 13 #if SK_SUPPORT_GPU | 13 #if SK_SUPPORT_GPU |
| 14 #include "gl/GrGLEffect.h" | 14 #include "gl/GrGLProcessor.h" |
| 15 #include "gl/builders/GrGLProgramBuilder.h" | 15 #include "gl/builders/GrGLProgramBuilder.h" |
| 16 #include "GrContext.h" | 16 #include "GrContext.h" |
| 17 #include "GrTBackendEffectFactory.h" | 17 #include "GrTBackendProcessorFactory.h" |
| 18 #endif | 18 #endif |
| 19 | 19 |
| 20 void SkLumaColorFilter::filterSpan(const SkPMColor src[], int count, | 20 void SkLumaColorFilter::filterSpan(const SkPMColor src[], int count, |
| 21 SkPMColor dst[]) const { | 21 SkPMColor dst[]) const { |
| 22 for (int i = 0; i < count; ++i) { | 22 for (int i = 0; i < count; ++i) { |
| 23 SkPMColor c = src[i]; | 23 SkPMColor c = src[i]; |
| 24 | 24 |
| 25 /* | 25 /* |
| 26 * While LuminanceToAlpha is defined to operate on un-premultiplied | 26 * While LuminanceToAlpha is defined to operate on un-premultiplied |
| 27 * inputs, due to the final alpha scaling it can be computed based on | 27 * inputs, due to the final alpha scaling it can be computed based on |
| (...skipping 25 matching lines...) Expand all Loading... |
| 53 | 53 |
| 54 void SkLumaColorFilter::flatten(SkWriteBuffer&) const {} | 54 void SkLumaColorFilter::flatten(SkWriteBuffer&) const {} |
| 55 | 55 |
| 56 #ifndef SK_IGNORE_TO_STRING | 56 #ifndef SK_IGNORE_TO_STRING |
| 57 void SkLumaColorFilter::toString(SkString* str) const { | 57 void SkLumaColorFilter::toString(SkString* str) const { |
| 58 str->append("SkLumaColorFilter "); | 58 str->append("SkLumaColorFilter "); |
| 59 } | 59 } |
| 60 #endif | 60 #endif |
| 61 | 61 |
| 62 #if SK_SUPPORT_GPU | 62 #if SK_SUPPORT_GPU |
| 63 class LumaColorFilterEffect : public GrEffect { | 63 class LumaColorFilterEffect : public GrFragmentProcessor { |
| 64 public: | 64 public: |
| 65 static GrEffect* Create() { | 65 static GrFragmentProcessor* Create() { |
| 66 GR_CREATE_STATIC_EFFECT(gLumaEffect, LumaColorFilterEffect, ()); | 66 GR_CREATE_STATIC_FRAGMENT_PROCESSOR(gLumaEffect, LumaColorFilterEffect,
()); |
| 67 return SkRef(gLumaEffect); | 67 return SkRef(gLumaEffect); |
| 68 } | 68 } |
| 69 | 69 |
| 70 static const char* Name() { return "Luminance-to-Alpha"; } | 70 static const char* Name() { return "Luminance-to-Alpha"; } |
| 71 | 71 |
| 72 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE { | 72 virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERR
IDE { |
| 73 return GrTBackendEffectFactory<LumaColorFilterEffect>::getInstance(); | 73 return GrTBackendFragmentProcessorFactory<LumaColorFilterEffect>::getIns
tance(); |
| 74 } | 74 } |
| 75 | 75 |
| 76 virtual void getConstantColorComponents(GrColor* color, | 76 virtual void getConstantColorComponents(GrColor* color, |
| 77 uint32_t* validFlags) const SK_OVERR
IDE { | 77 uint32_t* validFlags) const SK_OVERR
IDE { |
| 78 // The output is always black. | 78 // The output is always black. |
| 79 *color = GrColorPackRGBA(0, 0, 0, GrColorUnpackA(*color)); | 79 *color = GrColorPackRGBA(0, 0, 0, GrColorUnpackA(*color)); |
| 80 *validFlags = kRGB_GrColorComponentFlags; | 80 *validFlags = kRGB_GrColorComponentFlags; |
| 81 } | 81 } |
| 82 | 82 |
| 83 class GLEffect : public GrGLEffect { | 83 class GLProcessor : public GrGLFragmentProcessor { |
| 84 public: | 84 public: |
| 85 GLEffect(const GrBackendEffectFactory& factory, | 85 GLProcessor(const GrBackendProcessorFactory& factory, |
| 86 const GrEffect&) | 86 const GrProcessor&) |
| 87 : INHERITED(factory) { | 87 : INHERITED(factory) { |
| 88 } | 88 } |
| 89 | 89 |
| 90 static void GenKey(const GrEffect&, const GrGLCaps&, GrEffectKeyBuilder*
b) {} | 90 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBu
ilder* b) {} |
| 91 | 91 |
| 92 virtual void emitCode(GrGLProgramBuilder* builder, | 92 virtual void emitCode(GrGLProgramBuilder* builder, |
| 93 const GrEffect&, | 93 const GrFragmentProcessor&, |
| 94 const GrEffectKey&, | 94 const GrProcessorKey&, |
| 95 const char* outputColor, | 95 const char* outputColor, |
| 96 const char* inputColor, | 96 const char* inputColor, |
| 97 const TransformedCoordsArray&, | 97 const TransformedCoordsArray&, |
| 98 const TextureSamplerArray&) SK_OVERRIDE { | 98 const TextureSamplerArray&) SK_OVERRIDE { |
| 99 if (NULL == inputColor) { | 99 if (NULL == inputColor) { |
| 100 inputColor = "vec4(1)"; | 100 inputColor = "vec4(1)"; |
| 101 } | 101 } |
| 102 | 102 |
| 103 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); | 103 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); |
| 104 fsBuilder->codeAppendf("\tfloat luma = dot(vec3(%f, %f, %f), %s.rgb)
;\n", | 104 fsBuilder->codeAppendf("\tfloat luma = dot(vec3(%f, %f, %f), %s.rgb)
;\n", |
| 105 SK_ITU_BT709_LUM_COEFF_R, | 105 SK_ITU_BT709_LUM_COEFF_R, |
| 106 SK_ITU_BT709_LUM_COEFF_G, | 106 SK_ITU_BT709_LUM_COEFF_G, |
| 107 SK_ITU_BT709_LUM_COEFF_B, | 107 SK_ITU_BT709_LUM_COEFF_B, |
| 108 inputColor); | 108 inputColor); |
| 109 fsBuilder->codeAppendf("\t%s = vec4(0, 0, 0, luma);\n", | 109 fsBuilder->codeAppendf("\t%s = vec4(0, 0, 0, luma);\n", |
| 110 outputColor); | 110 outputColor); |
| 111 | 111 |
| 112 } | 112 } |
| 113 | 113 |
| 114 private: | 114 private: |
| 115 typedef GrGLEffect INHERITED; | 115 typedef GrGLFragmentProcessor INHERITED; |
| 116 }; | 116 }; |
| 117 | 117 |
| 118 private: | 118 private: |
| 119 virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE { | 119 virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE { |
| 120 return true; | 120 return true; |
| 121 } | 121 } |
| 122 }; | 122 }; |
| 123 | 123 |
| 124 GrEffect* SkLumaColorFilter::asNewEffect(GrContext*) const { | 124 GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const { |
| 125 return LumaColorFilterEffect::Create(); | 125 return LumaColorFilterEffect::Create(); |
| 126 } | 126 } |
| 127 #endif | 127 #endif |
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