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| 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 "SkAlphaThresholdFilter.h" | 8 #include "SkAlphaThresholdFilter.h" |
| 9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
| 10 #include "SkReadBuffer.h" | 10 #include "SkReadBuffer.h" |
| (...skipping 106 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 117 GrGLAlphaThresholdEffect(const GrBackendEffectFactory&, const GrDrawEffect&)
; | 117 GrGLAlphaThresholdEffect(const GrBackendEffectFactory&, const GrDrawEffect&)
; |
| 118 | 118 |
| 119 virtual void emitCode(GrGLShaderBuilder*, | 119 virtual void emitCode(GrGLShaderBuilder*, |
| 120 const GrDrawEffect&, | 120 const GrDrawEffect&, |
| 121 const GrEffectKey&, | 121 const GrEffectKey&, |
| 122 const char* outputColor, | 122 const char* outputColor, |
| 123 const char* inputColor, | 123 const char* inputColor, |
| 124 const TransformedCoordsArray&, | 124 const TransformedCoordsArray&, |
| 125 const TextureSamplerArray&) SK_OVERRIDE; | 125 const TextureSamplerArray&) SK_OVERRIDE; |
| 126 | 126 |
| 127 virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVER
RIDE; | 127 virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_
OVERRIDE; |
| 128 | 128 |
| 129 private: | 129 private: |
| 130 | 130 |
| 131 GrGLUniformManager::UniformHandle fInnerThresholdVar; | 131 GrGLProgramDataManager::UniformHandle fInnerThresholdVar; |
| 132 GrGLUniformManager::UniformHandle fOuterThresholdVar; | 132 GrGLProgramDataManager::UniformHandle fOuterThresholdVar; |
| 133 | 133 |
| 134 typedef GrGLEffect INHERITED; | 134 typedef GrGLEffect INHERITED; |
| 135 }; | 135 }; |
| 136 | 136 |
| 137 GrGLAlphaThresholdEffect::GrGLAlphaThresholdEffect(const GrBackendEffectFactory&
factory, const GrDrawEffect&) | 137 GrGLAlphaThresholdEffect::GrGLAlphaThresholdEffect(const GrBackendEffectFactory&
factory, const GrDrawEffect&) |
| 138 : INHERITED(factory) { | 138 : INHERITED(factory) { |
| 139 } | 139 } |
| 140 | 140 |
| 141 void GrGLAlphaThresholdEffect::emitCode(GrGLShaderBuilder* builder, | 141 void GrGLAlphaThresholdEffect::emitCode(GrGLShaderBuilder* builder, |
| 142 const GrDrawEffect&, | 142 const GrDrawEffect&, |
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| 179 "\t\t} else if (color.a < inner_thresh) {\n" | 179 "\t\t} else if (color.a < inner_thresh) {\n" |
| 180 "\t\t\tfloat scale = inner_thresh / max(0.001, color.a
);\n" | 180 "\t\t\tfloat scale = inner_thresh / max(0.001, color.a
);\n" |
| 181 "\t\t\tcolor.rgb *= scale;\n" | 181 "\t\t\tcolor.rgb *= scale;\n" |
| 182 "\t\t\tcolor.a = inner_thresh;\n" | 182 "\t\t\tcolor.a = inner_thresh;\n" |
| 183 "\t\t}\n"); | 183 "\t\t}\n"); |
| 184 | 184 |
| 185 builder->fsCodeAppendf("%s = %s;\n", outputColor, | 185 builder->fsCodeAppendf("%s = %s;\n", outputColor, |
| 186 (GrGLSLExpr4(inputColor) * GrGLSLExpr4("color")).c_st
r()); | 186 (GrGLSLExpr4(inputColor) * GrGLSLExpr4("color")).c_st
r()); |
| 187 } | 187 } |
| 188 | 188 |
| 189 void GrGLAlphaThresholdEffect::setData(const GrGLUniformManager& uman, | 189 void GrGLAlphaThresholdEffect::setData(const GrGLProgramDataManager& pdman, |
| 190 const GrDrawEffect& drawEffect) { | 190 const GrDrawEffect& drawEffect) { |
| 191 const AlphaThresholdEffect& alpha_threshold = | 191 const AlphaThresholdEffect& alpha_threshold = |
| 192 drawEffect.castEffect<AlphaThresholdEffect>(); | 192 drawEffect.castEffect<AlphaThresholdEffect>(); |
| 193 uman.set1f(fInnerThresholdVar, alpha_threshold.innerThreshold()); | 193 pdman.set1f(fInnerThresholdVar, alpha_threshold.innerThreshold()); |
| 194 uman.set1f(fOuterThresholdVar, alpha_threshold.outerThreshold()); | 194 pdman.set1f(fOuterThresholdVar, alpha_threshold.outerThreshold()); |
| 195 } | 195 } |
| 196 | 196 |
| 197 ///////////////////////////////////////////////////////////////////// | 197 ///////////////////////////////////////////////////////////////////// |
| 198 | 198 |
| 199 GR_DEFINE_EFFECT_TEST(AlphaThresholdEffect); | 199 GR_DEFINE_EFFECT_TEST(AlphaThresholdEffect); |
| 200 | 200 |
| 201 GrEffect* AlphaThresholdEffect::TestCreate(SkRandom* random, | 201 GrEffect* AlphaThresholdEffect::TestCreate(SkRandom* random, |
| 202 GrContext* context, | 202 GrContext* context, |
| 203 const GrDrawTargetCaps&, | 203 const GrDrawTargetCaps&, |
| 204 GrTexture** textures) { | 204 GrTexture** textures) { |
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| 360 (U8CPU)(SkColorGetG(source) *
scale), | 360 (U8CPU)(SkColorGetG(source) *
scale), |
| 361 (U8CPU)(SkColorGetB(source) *
scale)); | 361 (U8CPU)(SkColorGetB(source) *
scale)); |
| 362 } | 362 } |
| 363 } | 363 } |
| 364 dptr[y * dst->width() + x] = output_color; | 364 dptr[y * dst->width() + x] = output_color; |
| 365 } | 365 } |
| 366 } | 366 } |
| 367 | 367 |
| 368 return true; | 368 return true; |
| 369 } | 369 } |
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