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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 "SkBitmapAlphaThresholdShader.h" | 8 #include "SkBitmapAlphaThresholdShader.h" |
9 | 9 |
10 class BATShader : public SkShader { | 10 class BATShader : public SkShader { |
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143 "\t\t\t\tcolor.rgb *= scale;\n" | 143 "\t\t\t\tcolor.rgb *= scale;\n" |
144 "\t\t\t\tcolor.a = thresh;\n" | 144 "\t\t\t\tcolor.a = thresh;\n" |
145 "\t\t\t}\n" | 145 "\t\t\t}\n" |
146 "\t\t} else if (color.a < thresh) {\n" | 146 "\t\t} else if (color.a < thresh) {\n" |
147 "\t\t\tfloat scale = thresh / color.a;\n" | 147 "\t\t\tfloat scale = thresh / color.a;\n" |
148 "\t\t\tcolor.rgb *= scale;\n" | 148 "\t\t\tcolor.rgb *= scale;\n" |
149 "\t\t\tcolor.a = thresh;\n" | 149 "\t\t\tcolor.a = thresh;\n" |
150 "\t\t}\n"); | 150 "\t\t}\n"); |
151 | 151 |
152 builder->fsCodeAppendf("color = %s = %s;\n", outputColor, | 152 builder->fsCodeAppendf("color = %s = %s;\n", outputColor, |
153 (GrGLSLExpr<4>(inputColor) * GrGLSLExpr<4>("c
olor")).c_str()); | 153 (GrGLSLExpr4(inputColor) * GrGLSLExpr4("color
")).c_str()); |
154 } | 154 } |
155 | 155 |
156 virtual void setData(const GrGLUniformManager& uman, const GrDrawEffect&
e) SK_OVERRIDE { | 156 virtual void setData(const GrGLUniformManager& uman, const GrDrawEffect&
e) SK_OVERRIDE { |
157 const ThresholdEffect& effect = e.castEffect<ThresholdEffect>(); | 157 const ThresholdEffect& effect = e.castEffect<ThresholdEffect>(); |
158 if (fPrevThreshold != effect.fThreshold) { | 158 if (fPrevThreshold != effect.fThreshold) { |
159 uman.set1f(fThresholdUniHandle, effect.fThreshold); | 159 uman.set1f(fThresholdUniHandle, effect.fThreshold); |
160 } | 160 } |
161 } | 161 } |
162 | 162 |
163 private: | 163 private: |
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268 GrEffectRef* effect = ThresholdEffect::Create(bmpTexture, bmpMatrix, | 268 GrEffectRef* effect = ThresholdEffect::Create(bmpTexture, bmpMatrix, |
269 maskTexture, maskMatrix, | 269 maskTexture, maskMatrix, |
270 fThreshold); | 270 fThreshold); |
271 | 271 |
272 GrUnlockAndUnrefCachedBitmapTexture(bmpTexture); | 272 GrUnlockAndUnrefCachedBitmapTexture(bmpTexture); |
273 | 273 |
274 return effect; | 274 return effect; |
275 } | 275 } |
276 | 276 |
277 #endif | 277 #endif |
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