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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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49 #include "GrTBackendEffectFactory.h" | 49 #include "GrTBackendEffectFactory.h" |
50 #include "GrTextureAccess.h" | 50 #include "GrTextureAccess.h" |
51 | 51 |
52 #include "SkGr.h" | 52 #include "SkGr.h" |
53 | 53 |
54 class GrGLAlphaThresholdEffect; | 54 class GrGLAlphaThresholdEffect; |
55 | 55 |
56 class AlphaThresholdEffect : public GrEffect { | 56 class AlphaThresholdEffect : public GrEffect { |
57 | 57 |
58 public: | 58 public: |
59 static GrEffectRef* Create(GrTexture* texture, | 59 static GrEffect* Create(GrTexture* texture, |
60 GrTexture* maskTexture, | 60 GrTexture* maskTexture, |
61 float innerThreshold, | 61 float innerThreshold, |
62 float outerThreshold) { | 62 float outerThreshold) { |
63 return SkNEW_ARGS(AlphaThresholdEffect, (texture, | 63 return SkNEW_ARGS(AlphaThresholdEffect, (texture, |
64 maskTexture, | 64 maskTexture, |
65 innerThreshold, | 65 innerThreshold, |
66 outerThreshold)); | 66 outerThreshold)); |
67 } | 67 } |
68 | 68 |
69 virtual ~AlphaThresholdEffect() {}; | 69 virtual ~AlphaThresholdEffect() {}; |
70 | 70 |
71 static const char* Name() { return "Alpha Threshold"; } | 71 static const char* Name() { return "Alpha Threshold"; } |
72 | 72 |
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188 const AlphaThresholdEffect& alpha_threshold = | 188 const AlphaThresholdEffect& alpha_threshold = |
189 drawEffect.castEffect<AlphaThresholdEffect>(); | 189 drawEffect.castEffect<AlphaThresholdEffect>(); |
190 uman.set1f(fInnerThresholdVar, alpha_threshold.innerThreshold()); | 190 uman.set1f(fInnerThresholdVar, alpha_threshold.innerThreshold()); |
191 uman.set1f(fOuterThresholdVar, alpha_threshold.outerThreshold()); | 191 uman.set1f(fOuterThresholdVar, alpha_threshold.outerThreshold()); |
192 } | 192 } |
193 | 193 |
194 ///////////////////////////////////////////////////////////////////// | 194 ///////////////////////////////////////////////////////////////////// |
195 | 195 |
196 GR_DEFINE_EFFECT_TEST(AlphaThresholdEffect); | 196 GR_DEFINE_EFFECT_TEST(AlphaThresholdEffect); |
197 | 197 |
198 GrEffectRef* AlphaThresholdEffect::TestCreate(SkRandom* random, | 198 GrEffect* AlphaThresholdEffect::TestCreate(SkRandom* random, |
199 GrContext* context, | 199 GrContext* context, |
200 const GrDrawTargetCaps&, | 200 const GrDrawTargetCaps&, |
201 GrTexture** textures) { | 201 GrTexture** textures) { |
202 GrTexture* bmpTex = textures[GrEffectUnitTest::kSkiaPMTextureIdx]; | 202 GrTexture* bmpTex = textures[GrEffectUnitTest::kSkiaPMTextureIdx]; |
203 GrTexture* maskTex = textures[GrEffectUnitTest::kAlphaTextureIdx]; | 203 GrTexture* maskTex = textures[GrEffectUnitTest::kAlphaTextureIdx]; |
204 float inner_thresh = random->nextUScalar1(); | 204 float inner_thresh = random->nextUScalar1(); |
205 float outer_thresh = random->nextUScalar1(); | 205 float outer_thresh = random->nextUScalar1(); |
206 return AlphaThresholdEffect::Create(bmpTex, maskTex, inner_thresh, outer_thr
esh); | 206 return AlphaThresholdEffect::Create(bmpTex, maskTex, inner_thresh, outer_thr
esh); |
207 } | 207 } |
208 | 208 |
209 /////////////////////////////////////////////////////////////////////////////// | 209 /////////////////////////////////////////////////////////////////////////////// |
210 | 210 |
211 const GrBackendEffectFactory& AlphaThresholdEffect::getFactory() const { | 211 const GrBackendEffectFactory& AlphaThresholdEffect::getFactory() const { |
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356 (U8CPU)(SkColorGetG(source) *
scale), | 356 (U8CPU)(SkColorGetG(source) *
scale), |
357 (U8CPU)(SkColorGetB(source) *
scale)); | 357 (U8CPU)(SkColorGetB(source) *
scale)); |
358 } | 358 } |
359 } | 359 } |
360 dptr[y * dst->width() + x] = output_color; | 360 dptr[y * dst->width() + x] = output_color; |
361 } | 361 } |
362 } | 362 } |
363 | 363 |
364 return true; | 364 return true; |
365 } | 365 } |
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