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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" |
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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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