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1 /* | |
2 * Copyright 2006 The Android Open Source Project | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "SkAvoidXfermode.h" | |
9 #include "SkColorPriv.h" | |
10 #include "SkReadBuffer.h" | |
11 #include "SkWriteBuffer.h" | |
12 #include "SkString.h" | |
13 | |
14 SkAvoidXfermode::SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode) { | |
15 if (tolerance > 255) { | |
16 tolerance = 255; | |
17 } | |
18 fTolerance = SkToU8(tolerance); | |
19 fOpColor = opColor; | |
20 fDistMul = (256 << 14) / (tolerance + 1); | |
21 fMode = mode; | |
22 } | |
23 | |
24 sk_sp<SkFlattenable> SkAvoidXfermode::CreateProc(SkReadBuffer& buffer) { | |
25 const SkColor color = buffer.readColor(); | |
26 const unsigned tolerance = buffer.readUInt(); | |
27 const unsigned mode = buffer.readUInt(); | |
28 return Make(color, tolerance, (Mode)mode); | |
29 } | |
30 | |
31 void SkAvoidXfermode::flatten(SkWriteBuffer& buffer) const { | |
32 buffer.writeColor(fOpColor); | |
33 buffer.writeUInt(fTolerance); | |
34 buffer.writeUInt(fMode); | |
35 } | |
36 | |
37 // returns 0..31 | |
38 static unsigned color_dist16(uint16_t c, unsigned r, unsigned g, unsigned b) { | |
39 SkASSERT(r <= SK_R16_MASK); | |
40 SkASSERT(g <= SK_G16_MASK); | |
41 SkASSERT(b <= SK_B16_MASK); | |
42 | |
43 unsigned dr = SkAbs32(SkGetPackedR16(c) - r); | |
44 unsigned dg = SkAbs32(SkGetPackedG16(c) - g) >> (SK_G16_BITS - SK_R16_BITS); | |
45 unsigned db = SkAbs32(SkGetPackedB16(c) - b); | |
46 | |
47 return SkMax32(dr, SkMax32(dg, db)); | |
48 } | |
49 | |
50 // returns 0..255 | |
51 static unsigned color_dist32(SkPMColor c, U8CPU r, U8CPU g, U8CPU b) { | |
52 SkASSERT(r <= 0xFF); | |
53 SkASSERT(g <= 0xFF); | |
54 SkASSERT(b <= 0xFF); | |
55 | |
56 unsigned dr = SkAbs32(SkGetPackedR32(c) - r); | |
57 unsigned dg = SkAbs32(SkGetPackedG32(c) - g); | |
58 unsigned db = SkAbs32(SkGetPackedB32(c) - b); | |
59 | |
60 return SkMax32(dr, SkMax32(dg, db)); | |
61 } | |
62 | |
63 static int scale_dist_14(int dist, uint32_t mul, uint32_t sub) { | |
64 int tmp = dist * mul - sub; | |
65 int result = (tmp + (1 << 13)) >> 14; | |
66 | |
67 return result; | |
68 } | |
69 | |
70 static inline unsigned Accurate255To256(unsigned x) { | |
71 return x + (x >> 7); | |
72 } | |
73 | |
74 void SkAvoidXfermode::xfer32(SkPMColor dst[], const SkPMColor src[], int count, | |
75 const SkAlpha aa[]) const { | |
76 unsigned opR = SkColorGetR(fOpColor); | |
77 unsigned opG = SkColorGetG(fOpColor); | |
78 unsigned opB = SkColorGetB(fOpColor); | |
79 uint32_t mul = fDistMul; | |
80 uint32_t sub = (fDistMul - (1 << 14)) << 8; | |
81 | |
82 int MAX, mask; | |
83 | |
84 if (kTargetColor_Mode == fMode) { | |
85 mask = -1; | |
86 MAX = 255; | |
87 } else { | |
88 mask = 0; | |
89 MAX = 0; | |
90 } | |
91 | |
92 for (int i = 0; i < count; i++) { | |
93 int d = color_dist32(dst[i], opR, opG, opB); | |
94 // now reverse d if we need to | |
95 d = MAX + (d ^ mask) - mask; | |
96 SkASSERT((unsigned)d <= 255); | |
97 d = Accurate255To256(d); | |
98 | |
99 d = scale_dist_14(d, mul, sub); | |
100 SkASSERT(d <= 256); | |
101 | |
102 if (d > 0) { | |
103 if (aa) { | |
104 d = SkAlphaMul(d, Accurate255To256(*aa++)); | |
105 if (0 == d) { | |
106 continue; | |
107 } | |
108 } | |
109 dst[i] = SkFourByteInterp256(src[i], dst[i], d); | |
110 } | |
111 } | |
112 } | |
113 | |
114 static inline U16CPU SkBlend3216(SkPMColor src, U16CPU dst, unsigned scale) { | |
115 SkASSERT(scale <= 32); | |
116 scale <<= 3; | |
117 | |
118 return SkPackRGB16(SkAlphaBlend(SkPacked32ToR16(src), SkGetPackedR16(dst), s
cale), | |
119 SkAlphaBlend(SkPacked32ToG16(src), SkGetPackedG16(dst), scale), | |
120 SkAlphaBlend(SkPacked32ToB16(src), SkGetPackedB16(dst), scale)); | |
121 } | |
122 | |
123 void SkAvoidXfermode::xfer16(uint16_t dst[], const SkPMColor src[], int count, | |
124 const SkAlpha aa[]) const { | |
125 unsigned opR = SkColorGetR(fOpColor) >> (8 - SK_R16_BITS); | |
126 unsigned opG = SkColorGetG(fOpColor) >> (8 - SK_G16_BITS); | |
127 unsigned opB = SkColorGetB(fOpColor) >> (8 - SK_R16_BITS); | |
128 uint32_t mul = fDistMul; | |
129 uint32_t sub = (fDistMul - (1 << 14)) << SK_R16_BITS; | |
130 | |
131 int MAX, mask; | |
132 | |
133 if (kTargetColor_Mode == fMode) { | |
134 mask = -1; | |
135 MAX = 31; | |
136 } else { | |
137 mask = 0; | |
138 MAX = 0; | |
139 } | |
140 | |
141 for (int i = 0; i < count; i++) { | |
142 int d = color_dist16(dst[i], opR, opG, opB); | |
143 // now reverse d if we need to | |
144 d = MAX + (d ^ mask) - mask; | |
145 SkASSERT((unsigned)d <= 31); | |
146 // convert from 0..31 to 0..32 | |
147 d += d >> 4; | |
148 d = scale_dist_14(d, mul, sub); | |
149 SkASSERT(d <= 32); | |
150 | |
151 if (d > 0) { | |
152 if (aa) { | |
153 d = SkAlphaMul(d, Accurate255To256(*aa++)); | |
154 if (0 == d) { | |
155 continue; | |
156 } | |
157 } | |
158 dst[i] = SkBlend3216(src[i], dst[i], d); | |
159 } | |
160 } | |
161 } | |
162 | |
163 void SkAvoidXfermode::xferA8(SkAlpha dst[], const SkPMColor src[], int count, | |
164 const SkAlpha aa[]) const { | |
165 } | |
166 | |
167 | |
168 #if SK_SUPPORT_GPU | |
169 | |
170 #include "GrFragmentProcessor.h" | |
171 #include "GrInvariantOutput.h" | |
172 #include "GrXferProcessor.h" | |
173 #include "glsl/GrGLSLFragmentProcessor.h" | |
174 #include "glsl/GrGLSLFragmentShaderBuilder.h" | |
175 #include "glsl/GrGLSLUniformHandler.h" | |
176 #include "glsl/GrGLSLXferProcessor.h" | |
177 | |
178 /////////////////////////////////////////////////////////////////////////////// | |
179 // Fragment Processor | |
180 /////////////////////////////////////////////////////////////////////////////// | |
181 | |
182 class GLAvoidFP; | |
183 | |
184 class AvoidFP : public GrFragmentProcessor { | |
185 public: | |
186 static const GrFragmentProcessor* Create(SkColor opColor, uint8_t tolerance, | |
187 SkAvoidXfermode::Mode mode, | |
188 const GrFragmentProcessor* dst) { | |
189 return new AvoidFP(opColor, tolerance, mode, dst); | |
190 } | |
191 | |
192 ~AvoidFP() override { } | |
193 | |
194 const char* name() const override { return "Avoid"; } | |
195 | |
196 SkString dumpInfo() const override { | |
197 SkString str; | |
198 str.appendf("Color: 0x%08x Tol: %d Mode: %s", | |
199 fOpColor, fTolerance, | |
200 fMode == SkAvoidXfermode::kAvoidColor_Mode ? "Avoid" : "Targ
et"); | |
201 return str; | |
202 } | |
203 | |
204 SkColor opColor() const { return fOpColor; } | |
205 uint8_t tol() const { return fTolerance; } | |
206 SkAvoidXfermode::Mode mode() const { return fMode; } | |
207 | |
208 private: | |
209 GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; | |
210 | |
211 void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const
override; | |
212 | |
213 bool onIsEqual(const GrFragmentProcessor& fpBase) const override { | |
214 const AvoidFP& fp = fpBase.cast<AvoidFP>(); | |
215 | |
216 return fOpColor == fp.fOpColor && | |
217 fTolerance == fp.fTolerance && | |
218 fMode == fp.fMode; | |
219 } | |
220 | |
221 void onComputeInvariantOutput(GrInvariantOutput* inout) const override { | |
222 inout->setToUnknown(GrInvariantOutput::kWill_ReadInput); | |
223 } | |
224 | |
225 AvoidFP(SkColor opColor, uint8_t tolerance, | |
226 SkAvoidXfermode::Mode mode, const GrFragmentProcessor* dst) | |
227 : fOpColor(opColor), fTolerance(tolerance), fMode(mode) { | |
228 this->initClassID<AvoidFP>(); | |
229 | |
230 SkASSERT(dst); | |
231 SkDEBUGCODE(int dstIndex = )this->registerChildProcessor(dst); | |
232 SkASSERT(0 == dstIndex); | |
233 } | |
234 | |
235 SkColor fOpColor; | |
236 uint8_t fTolerance; | |
237 SkAvoidXfermode::Mode fMode; | |
238 | |
239 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | |
240 typedef GrFragmentProcessor INHERITED; | |
241 }; | |
242 | |
243 /////////////////////////////////////////////////////////////////////////////// | |
244 | |
245 // Add common code for calculating avoid's distance value | |
246 static void add_avoid_code(GrGLSLFragmentBuilder* fragBuilder, | |
247 const char* dstColor, | |
248 const char* srcCoverage, | |
249 const char* kColorAndTolUni, | |
250 const char* kCoverageName, | |
251 SkAvoidXfermode::Mode mode) { | |
252 | |
253 fragBuilder->codeAppendf("vec3 temp = %s.rgb - %s.rgb;", dstColor, kColorAnd
TolUni); | |
254 fragBuilder->codeAppendf("float dist = max(max(abs(temp.r), abs(temp.g)), ab
s(temp.b));"); | |
255 | |
256 if (SkAvoidXfermode::kTargetColor_Mode == mode) { | |
257 fragBuilder->codeAppendf("dist = 1.0 - dist;"); | |
258 } | |
259 | |
260 // the 'a' portion of the uniform is the scaled and inverted tolerance | |
261 fragBuilder->codeAppendf("dist = dist * %s.a - (%s.a - 1.0);", | |
262 kColorAndTolUni, kColorAndTolUni); | |
263 | |
264 fragBuilder->codeAppendf("vec4 %s = vec4(dist);", kCoverageName); | |
265 if (srcCoverage) { | |
266 fragBuilder->codeAppendf("%s *= %s;", kCoverageName, srcCoverage); | |
267 } | |
268 } | |
269 | |
270 class GLAvoidFP : public GrGLSLFragmentProcessor { | |
271 public: | |
272 void emitCode(EmitArgs& args) override { | |
273 const AvoidFP& avoid = args.fFp.cast<AvoidFP>(); | |
274 | |
275 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; | |
276 SkString dstColor("dstColor"); | |
277 this->emitChild(0, nullptr, &dstColor, args); | |
278 | |
279 fColorAndTolUni = args.fUniformHandler->addUniform( | |
280 kFragment_GrShaderFlag, | |
281 kVec4f_GrSLType, kDefault_GrSLP
recision, | |
282 "colorAndTol"); | |
283 const char* kColorAndTolUni = args.fUniformHandler->getUniformCStr(fColo
rAndTolUni); | |
284 | |
285 const char* kCoverageName = "newCoverage"; | |
286 | |
287 // add_avoid_code emits the code needed to compute the new coverage | |
288 add_avoid_code(fragBuilder, | |
289 dstColor.c_str(), nullptr, | |
290 kColorAndTolUni, kCoverageName, avoid.mode()); | |
291 | |
292 // The raster implementation's quantization and behavior yield a very no
ticeable | |
293 // effect near zero (0.0039 = 1/256). | |
294 fragBuilder->codeAppendf("if (%s.r < 0.0039) { %s = %s; } else {", | |
295 kCoverageName, args.fOutputColor, dstColor.c_st
r()); | |
296 fragBuilder->codeAppendf("%s = %s * %s + (vec4(1.0)-%s) * %s;", | |
297 args.fOutputColor, | |
298 kCoverageName, args.fInputColor ? args.fInputCo
lor : "vec4(1.0)", | |
299 kCoverageName, dstColor.c_str()); | |
300 fragBuilder->codeAppend("}"); | |
301 } | |
302 | |
303 static void GenKey(const GrProcessor& proc, const GrGLSLCaps&, GrProcessorKe
yBuilder* b) { | |
304 const AvoidFP& avoid = proc.cast<AvoidFP>(); | |
305 uint32_t key = avoid.mode() == SkAvoidXfermode::kTargetColor_Mode ? 1 :
0; | |
306 b->add32(key); | |
307 } | |
308 | |
309 protected: | |
310 void onSetData(const GrGLSLProgramDataManager& pdman, const GrProcessor& pro
c) override { | |
311 const AvoidFP& avoid = proc.cast<AvoidFP>(); | |
312 pdman.set4f(fColorAndTolUni, | |
313 SkColorGetR(avoid.opColor())/255.0f, | |
314 SkColorGetG(avoid.opColor())/255.0f, | |
315 SkColorGetB(avoid.opColor())/255.0f, | |
316 256.0f/(avoid.tol()+1.0f)); | |
317 } | |
318 | |
319 private: | |
320 GrGLSLProgramDataManager::UniformHandle fColorAndTolUni; | |
321 | |
322 typedef GrGLSLFragmentProcessor INHERITED; | |
323 }; | |
324 | |
325 /////////////////////////////////////////////////////////////////////////////// | |
326 | |
327 GrGLSLFragmentProcessor* AvoidFP::onCreateGLSLInstance() const { | |
328 return new GLAvoidFP; | |
329 } | |
330 | |
331 void AvoidFP::onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilde
r* b) const { | |
332 GLAvoidFP::GenKey(*this, caps, b); | |
333 } | |
334 | |
335 const GrFragmentProcessor* AvoidFP::TestCreate(GrProcessorTestData* d) { | |
336 SkColor opColor = d->fRandom->nextU(); | |
337 uint8_t tolerance = d->fRandom->nextBits(8); | |
338 SkAvoidXfermode::Mode mode = d->fRandom->nextBool() ? SkAvoidXfermode::kAvoi
dColor_Mode | |
339 : SkAvoidXfermode::kTarg
etColor_Mode; | |
340 | |
341 SkAutoTUnref<const GrFragmentProcessor> dst(GrProcessorUnitTest::CreateChild
FP(d)); | |
342 return new AvoidFP(opColor, tolerance, mode, dst); | |
343 } | |
344 | |
345 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(AvoidFP); | |
346 | |
347 /////////////////////////////////////////////////////////////////////////////// | |
348 // Xfer Processor | |
349 /////////////////////////////////////////////////////////////////////////////// | |
350 | |
351 class AvoidXP : public GrXferProcessor { | |
352 public: | |
353 AvoidXP(const DstTexture* dstTexture, bool hasMixedSamples, | |
354 SkColor opColor, uint8_t tolerance, SkAvoidXfermode::Mode mode) | |
355 : INHERITED(dstTexture, true, hasMixedSamples) | |
356 , fOpColor(opColor) | |
357 , fTolerance(tolerance) | |
358 , fMode(mode) { | |
359 this->initClassID<AvoidXP>(); | |
360 } | |
361 | |
362 const char* name() const override { return "Avoid"; } | |
363 | |
364 GrGLSLXferProcessor* createGLSLInstance() const override; | |
365 | |
366 SkColor opColor() const { return fOpColor; } | |
367 uint8_t tol() const { return fTolerance; } | |
368 SkAvoidXfermode::Mode mode() const { return fMode; } | |
369 | |
370 private: | |
371 GrXferProcessor::OptFlags onGetOptimizations(const GrPipelineOptimizations&
optimizations, | |
372 bool doesStencilWrite, | |
373 GrColor* overrideColor, | |
374 const GrCaps& caps) const overr
ide { | |
375 return GrXferProcessor::kNone_OptFlags; | |
376 } | |
377 | |
378 void onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilder* b)
const override; | |
379 | |
380 bool onIsEqual(const GrXferProcessor& xpBase) const override { | |
381 const AvoidXP& xp = xpBase.cast<AvoidXP>(); | |
382 | |
383 return fOpColor == xp.fOpColor && | |
384 fTolerance == xp.fTolerance && | |
385 fMode == xp.fMode; | |
386 } | |
387 | |
388 SkColor fOpColor; | |
389 uint8_t fTolerance; | |
390 SkAvoidXfermode::Mode fMode; | |
391 | |
392 typedef GrXferProcessor INHERITED; | |
393 }; | |
394 | |
395 /////////////////////////////////////////////////////////////////////////////// | |
396 | |
397 class GLAvoidXP : public GrGLSLXferProcessor { | |
398 public: | |
399 static void GenKey(const GrProcessor& processor, const GrGLSLCaps&, GrProces
sorKeyBuilder* b) { | |
400 const AvoidXP& avoid = processor.cast<AvoidXP>(); | |
401 uint32_t key = SkAvoidXfermode::kTargetColor_Mode == avoid.mode() ? 1 :
0; | |
402 b->add32(key); | |
403 } | |
404 | |
405 private: | |
406 void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder, | |
407 GrGLSLUniformHandler* uniformHandler, | |
408 const char* srcColor, | |
409 const char* srcCoverage, | |
410 const char* dstColor, | |
411 const char* outColor, | |
412 const char* outColorSecondary, | |
413 const GrXferProcessor& proc) override { | |
414 const AvoidXP& avoid = proc.cast<AvoidXP>(); | |
415 | |
416 fColorAndTolUni = uniformHandler->addUniform(kFragment_GrShaderFlag, | |
417 kVec4f_GrSLType, kDefault_G
rSLPrecision, | |
418 "colorAndTol"); | |
419 const char* kColorandTolUni = uniformHandler->getUniformCStr(fColorAndTo
lUni); | |
420 | |
421 const char* kCoverageName = "newCoverage"; | |
422 | |
423 // add_avoid_code emits the code needed to compute the new coverage | |
424 add_avoid_code(fragBuilder, | |
425 dstColor, srcCoverage, | |
426 kColorandTolUni, kCoverageName, avoid.mode()); | |
427 | |
428 // The raster implementation's quantization and behavior yield a very no
ticeable | |
429 // effect near zero (0.0039 = 1/256). | |
430 fragBuilder->codeAppendf("if (%s.r < 0.0039) { %s = %s; } else {", | |
431 kCoverageName, outColor, dstColor); | |
432 fragBuilder->codeAppendf("%s = %s;", outColor, srcColor ? srcColor : "ve
c4(1.0)"); | |
433 INHERITED::DefaultCoverageModulation(fragBuilder, kCoverageName, dstColo
r, outColor, | |
434 outColorSecondary, proc); | |
435 fragBuilder->codeAppend("}"); | |
436 } | |
437 | |
438 void onSetData(const GrGLSLProgramDataManager& pdman, | |
439 const GrXferProcessor& processor) override { | |
440 const AvoidXP& avoid = processor.cast<AvoidXP>(); | |
441 pdman.set4f(fColorAndTolUni, | |
442 SkColorGetR(avoid.opColor())/255.0f, | |
443 SkColorGetG(avoid.opColor())/255.0f, | |
444 SkColorGetB(avoid.opColor())/255.0f, | |
445 256.0f/(avoid.tol()+1.0f)); | |
446 }; | |
447 | |
448 GrGLSLProgramDataManager::UniformHandle fColorAndTolUni; | |
449 | |
450 typedef GrGLSLXferProcessor INHERITED; | |
451 }; | |
452 | |
453 /////////////////////////////////////////////////////////////////////////////// | |
454 | |
455 void AvoidXP::onGetGLSLProcessorKey(const GrGLSLCaps& caps, GrProcessorKeyBuilde
r* b) const { | |
456 GLAvoidXP::GenKey(*this, caps, b); | |
457 } | |
458 | |
459 GrGLSLXferProcessor* AvoidXP::createGLSLInstance() const { return new GLAvoidXP;
} | |
460 | |
461 /////////////////////////////////////////////////////////////////////////////// | |
462 class GrAvoidXPFactory : public GrXPFactory { | |
463 public: | |
464 static GrXPFactory* Create(SkColor opColor, uint8_t tolerance, | |
465 SkAvoidXfermode::Mode mode) { | |
466 return new GrAvoidXPFactory(opColor, tolerance, mode); | |
467 } | |
468 | |
469 void getInvariantBlendedColor(const GrProcOptInfo& colorPOI, | |
470 GrXPFactory::InvariantBlendedColor* blendedCol
or) const override { | |
471 blendedColor->fWillBlendWithDst = true; | |
472 blendedColor->fKnownColorFlags = kNone_GrColorComponentFlags; | |
473 } | |
474 | |
475 private: | |
476 GrAvoidXPFactory(SkColor opColor, uint8_t tolerance, SkAvoidXfermode::Mode m
ode) | |
477 : fOpColor(opColor) | |
478 , fTolerance(tolerance) | |
479 , fMode(mode) { | |
480 this->initClassID<GrAvoidXPFactory>(); | |
481 } | |
482 | |
483 GrXferProcessor* onCreateXferProcessor(const GrCaps& caps, | |
484 const GrPipelineOptimizations& optimi
zations, | |
485 bool hasMixedSamples, | |
486 const DstTexture* dstTexture) const o
verride { | |
487 return new AvoidXP(dstTexture, hasMixedSamples, fOpColor, fTolerance, fM
ode); | |
488 } | |
489 | |
490 bool onWillReadDstColor(const GrCaps& caps, | |
491 const GrPipelineOptimizations& optimizations, | |
492 bool hasMixedSamples) const override { | |
493 return true; | |
494 } | |
495 | |
496 bool onIsEqual(const GrXPFactory& xpfBase) const override { | |
497 const GrAvoidXPFactory& xpf = xpfBase.cast<GrAvoidXPFactory>(); | |
498 return fOpColor == xpf.fOpColor && | |
499 fTolerance == xpf.fTolerance && | |
500 fMode == xpf.fMode; | |
501 } | |
502 | |
503 GR_DECLARE_XP_FACTORY_TEST; | |
504 | |
505 SkColor fOpColor; | |
506 uint8_t fTolerance; | |
507 SkAvoidXfermode::Mode fMode; | |
508 | |
509 typedef GrXPFactory INHERITED; | |
510 }; | |
511 | |
512 GR_DEFINE_XP_FACTORY_TEST(GrAvoidXPFactory); | |
513 | |
514 const GrXPFactory* GrAvoidXPFactory::TestCreate(GrProcessorTestData* d) { | |
515 SkColor opColor = d->fRandom->nextU(); | |
516 uint8_t tolerance = d->fRandom->nextBits(8); | |
517 SkAvoidXfermode::Mode mode = d->fRandom->nextBool() ? SkAvoidXfermode::kAvoi
dColor_Mode | |
518 : SkAvoidXfermode::kTarg
etColor_Mode; | |
519 return GrAvoidXPFactory::Create(opColor, tolerance, mode); | |
520 } | |
521 | |
522 /////////////////////////////////////////////////////////////////////////////// | |
523 | |
524 const GrFragmentProcessor* SkAvoidXfermode::getFragmentProcessorForImageFilter( | |
525 const GrFragmentProc
essor* dst) const { | |
526 return AvoidFP::Create(fOpColor, fTolerance, fMode, dst); | |
527 } | |
528 | |
529 GrXPFactory* SkAvoidXfermode::asXPFactory() const { | |
530 return GrAvoidXPFactory::Create(fOpColor, fTolerance, fMode); | |
531 } | |
532 #endif | |
533 | |
534 #ifndef SK_IGNORE_TO_STRING | |
535 void SkAvoidXfermode::toString(SkString* str) const { | |
536 str->append("AvoidXfermode: opColor: "); | |
537 str->appendHex(fOpColor); | |
538 str->appendf("tolerance: %d ", fTolerance); | |
539 | |
540 static const char* gModeStrings[] = { "Avoid", "Target" }; | |
541 | |
542 str->appendf("mode: %s", gModeStrings[fMode]); | |
543 } | |
544 #endif | |
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