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1 | 1 |
2 #include "SkBitmap.h" | 2 #include "SkBitmap.h" |
3 #include "SkTableColorFilter.h" | 3 #include "SkTableColorFilter.h" |
4 #include "SkColorPriv.h" | 4 #include "SkColorPriv.h" |
5 #include "SkReadBuffer.h" | 5 #include "SkReadBuffer.h" |
6 #include "SkWriteBuffer.h" | 6 #include "SkWriteBuffer.h" |
7 #include "SkUnPreMultiply.h" | 7 #include "SkUnPreMultiply.h" |
8 #include "SkString.h" | 8 #include "SkString.h" |
9 | 9 |
10 class SkTable_ColorFilter : public SkColorFilter { | 10 class SkTable_ColorFilter : public SkColorFilter { |
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270 } | 270 } |
271 *table = *fBitmap; | 271 *table = *fBitmap; |
272 } | 272 } |
273 return true; | 273 return true; |
274 } | 274 } |
275 | 275 |
276 #if SK_SUPPORT_GPU | 276 #if SK_SUPPORT_GPU |
277 | 277 |
278 #include "GrFragmentProcessor.h" | 278 #include "GrFragmentProcessor.h" |
279 #include "GrTBackendProcessorFactory.h" | 279 #include "GrTBackendProcessorFactory.h" |
280 #include "SkGr.h" | |
280 #include "gl/GrGLProcessor.h" | 281 #include "gl/GrGLProcessor.h" |
281 #include "gl/builders/GrGLProgramBuilder.h" | 282 #include "gl/builders/GrGLProgramBuilder.h" |
robertphillips
2014/10/27 19:35:06
move to before gl includes ?
bsalomon
2014/10/27 19:43:03
Done.
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282 #include "SkGr.h" | 283 #include "effects/GrTextureStripAtlas.h" |
283 | 284 |
284 class GLColorTableEffect; | 285 class GLColorTableEffect; |
285 | 286 |
286 class ColorTableEffect : public GrFragmentProcessor { | 287 class ColorTableEffect : public GrFragmentProcessor { |
287 public: | 288 public: |
288 static GrFragmentProcessor* Create(GrTexture* texture, unsigned flags) { | 289 static GrFragmentProcessor* Create(GrContext* context, SkBitmap bitmap, unsi gned flags); |
289 return SkNEW_ARGS(ColorTableEffect, (texture, flags)); | |
290 } | |
291 | 290 |
292 virtual ~ColorTableEffect(); | 291 virtual ~ColorTableEffect(); |
293 | 292 |
294 static const char* Name() { return "ColorTable"; } | 293 static const char* Name() { return "ColorTable"; } |
295 virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERR IDE; | 294 virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERR IDE; |
296 | 295 |
297 typedef GLColorTableEffect GLProcessor; | 296 typedef GLColorTableEffect GLProcessor; |
298 | 297 |
298 const GrTextureStripAtlas* atlas() const { return fAtlas; } | |
299 int atlasRow() const { return fRow; } | |
300 | |
299 private: | 301 private: |
300 virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE{ return true; } | 302 virtual bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE; |
301 | 303 |
302 virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERR IDE; | 304 virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERR IDE; |
303 | 305 |
304 explicit ColorTableEffect(GrTexture* texture, unsigned flags); | 306 ColorTableEffect(GrTexture* texture, GrTextureStripAtlas* atlas, int row, un signed flags); |
305 | 307 |
306 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 308 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
307 | 309 |
308 GrTextureAccess fTextureAccess; | 310 GrTextureAccess fTextureAccess; |
309 unsigned fFlags; // currently not used in shader code, just to assist | 311 |
310 // onComputeInvariantOutput(). | 312 // currently not used in shader code, just to assist onComputeInvariantOutpu t(). |
313 unsigned fFlags; | |
314 | |
315 GrTextureStripAtlas* fAtlas; | |
316 int fRow; | |
311 | 317 |
312 typedef GrFragmentProcessor INHERITED; | 318 typedef GrFragmentProcessor INHERITED; |
313 }; | 319 }; |
314 | 320 |
315 class GLColorTableEffect : public GrGLFragmentProcessor { | 321 class GLColorTableEffect : public GrGLFragmentProcessor { |
316 public: | 322 public: |
317 GLColorTableEffect(const GrBackendProcessorFactory&, const GrProcessor&); | 323 GLColorTableEffect(const GrBackendProcessorFactory&, const GrProcessor&); |
318 | 324 |
319 virtual void emitCode(GrGLFPBuilder*, | 325 virtual void emitCode(GrGLFPBuilder*, |
320 const GrFragmentProcessor&, | 326 const GrFragmentProcessor&, |
321 const GrProcessorKey&, | 327 const GrProcessorKey&, |
322 const char* outputColor, | 328 const char* outputColor, |
323 const char* inputColor, | 329 const char* inputColor, |
324 const TransformedCoordsArray&, | 330 const TransformedCoordsArray&, |
325 const TextureSamplerArray&) SK_OVERRIDE; | 331 const TextureSamplerArray&) SK_OVERRIDE; |
326 | 332 |
327 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O VERRIDE {} | 333 virtual void setData(const GrGLProgramDataManager&, const GrProcessor&) SK_O VERRIDE; |
328 | 334 |
329 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilde r* b) {} | 335 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilde r* b) {} |
330 | 336 |
331 private: | 337 private: |
332 | 338 UniformHandle fRGBAYValuesUni; |
333 typedef GrGLFragmentProcessor INHERITED; | 339 typedef GrGLFragmentProcessor INHERITED; |
334 }; | 340 }; |
335 | 341 |
336 GLColorTableEffect::GLColorTableEffect(const GrBackendProcessorFactory& factory, const GrProcessor&) | 342 GLColorTableEffect::GLColorTableEffect(const GrBackendProcessorFactory& factory, const GrProcessor&) |
337 : INHERITED(factory) { | 343 : INHERITED(factory) { |
338 } | 344 } |
339 | 345 |
346 void GLColorTableEffect::setData(const GrGLProgramDataManager& pdm, const GrProc essor& proc) { | |
347 // The textures are organized in a strip where the rows are ordered a, r, g, b. | |
348 float rgbaYValues[4]; | |
349 const ColorTableEffect& cte = proc.cast<ColorTableEffect>(); | |
350 if (cte.atlas()) { | |
351 SkScalar yDelta = cte.atlas()->getNormalizedTexelHeight(); | |
352 rgbaYValues[3] = cte.atlas()->getYOffset(cte.atlasRow()) + SK_ScalarHalf * yDelta; | |
353 rgbaYValues[0] = rgbaYValues[3] + yDelta; | |
354 rgbaYValues[1] = rgbaYValues[0] + yDelta; | |
355 rgbaYValues[2] = rgbaYValues[1] + yDelta; | |
356 } else { | |
357 rgbaYValues[3] = 0.125; | |
358 rgbaYValues[0] = 0.375; | |
359 rgbaYValues[1] = 0.625; | |
360 rgbaYValues[2] = 0.875; | |
361 } | |
362 pdm.set4fv(fRGBAYValuesUni, 1, rgbaYValues); | |
363 } | |
364 | |
340 void GLColorTableEffect::emitCode(GrGLFPBuilder* builder, | 365 void GLColorTableEffect::emitCode(GrGLFPBuilder* builder, |
341 const GrFragmentProcessor&, | 366 const GrFragmentProcessor&, |
342 const GrProcessorKey&, | 367 const GrProcessorKey&, |
343 const char* outputColor, | 368 const char* outputColor, |
344 const char* inputColor, | 369 const char* inputColor, |
345 const TransformedCoordsArray&, | 370 const TransformedCoordsArray&, |
346 const TextureSamplerArray& samplers) { | 371 const TextureSamplerArray& samplers) { |
347 | 372 const char* yoffsets; |
373 fRGBAYValuesUni = builder->addUniform(GrGLFPBuilder::kFragment_Visibility, | |
374 kVec4f_GrSLType, "yoffsets", &yoffsets ); | |
348 static const float kColorScaleFactor = 255.0f / 256.0f; | 375 static const float kColorScaleFactor = 255.0f / 256.0f; |
349 static const float kColorOffsetFactor = 1.0f / 512.0f; | 376 static const float kColorOffsetFactor = 1.0f / 512.0f; |
350 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); | 377 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
351 if (NULL == inputColor) { | 378 if (NULL == inputColor) { |
352 // the input color is solid white (all ones). | 379 // the input color is solid white (all ones). |
353 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; | 380 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; |
354 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", | 381 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", |
355 kMaxValue, kMaxValue, kMaxValue, kMaxValue); | 382 kMaxValue, kMaxValue, kMaxValue, kMaxValue); |
356 | 383 |
357 } else { | 384 } else { |
358 fsBuilder->codeAppendf("\t\tfloat nonZeroAlpha = max(%s.a, .0001);\n", i nputColor); | 385 fsBuilder->codeAppendf("\t\tfloat nonZeroAlpha = max(%s.a, .0001);\n", i nputColor); |
359 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%s.rgb / nonZeroAlpha, non ZeroAlpha);\n", inputColor); | 386 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%s.rgb / nonZeroAlpha, non ZeroAlpha);\n", inputColor); |
360 fsBuilder->codeAppendf("\t\tcoord = coord * %f + vec4(%f, %f, %f, %f);\n ", | 387 fsBuilder->codeAppendf("\t\tcoord = coord * %f + vec4(%f, %f, %f, %f);\n ", |
361 kColorScaleFactor, | 388 kColorScaleFactor, |
362 kColorOffsetFactor, kColorOffsetFactor, | 389 kColorOffsetFactor, kColorOffsetFactor, |
363 kColorOffsetFactor, kColorOffsetFactor); | 390 kColorOffsetFactor, kColorOffsetFactor); |
364 } | 391 } |
365 | 392 |
393 SkString coord; | |
394 | |
366 fsBuilder->codeAppendf("\t\t%s.a = ", outputColor); | 395 fsBuilder->codeAppendf("\t\t%s.a = ", outputColor); |
367 fsBuilder->appendTextureLookup(samplers[0], "vec2(coord.a, 0.125)"); | 396 coord.printf("vec2(coord.a, %s.a)", yoffsets); |
397 fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); | |
368 fsBuilder->codeAppend(";\n"); | 398 fsBuilder->codeAppend(";\n"); |
369 | 399 |
370 fsBuilder->codeAppendf("\t\t%s.r = ", outputColor); | 400 fsBuilder->codeAppendf("\t\t%s.r = ", outputColor); |
371 fsBuilder->appendTextureLookup(samplers[0], "vec2(coord.r, 0.375)"); | 401 coord.printf("vec2(coord.r, %s.r)", yoffsets); |
402 fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); | |
372 fsBuilder->codeAppend(";\n"); | 403 fsBuilder->codeAppend(";\n"); |
373 | 404 |
374 fsBuilder->codeAppendf("\t\t%s.g = ", outputColor); | 405 fsBuilder->codeAppendf("\t\t%s.g = ", outputColor); |
375 fsBuilder->appendTextureLookup(samplers[0], "vec2(coord.g, 0.625)"); | 406 coord.printf("vec2(coord.g, %s.g)", yoffsets); |
407 fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); | |
376 fsBuilder->codeAppend(";\n"); | 408 fsBuilder->codeAppend(";\n"); |
377 | 409 |
378 fsBuilder->codeAppendf("\t\t%s.b = ", outputColor); | 410 fsBuilder->codeAppendf("\t\t%s.b = ", outputColor); |
379 fsBuilder->appendTextureLookup(samplers[0], "vec2(coord.b, 0.875)"); | 411 coord.printf("vec2(coord.b, %s.b)", yoffsets); |
412 fsBuilder->appendTextureLookup(samplers[0], coord.c_str()); | |
380 fsBuilder->codeAppend(";\n"); | 413 fsBuilder->codeAppend(";\n"); |
381 | 414 |
382 fsBuilder->codeAppendf("\t\t%s.rgb *= %s.a;\n", outputColor, outputColor); | 415 fsBuilder->codeAppendf("\t\t%s.rgb *= %s.a;\n", outputColor, outputColor); |
383 } | 416 } |
384 | 417 |
385 /////////////////////////////////////////////////////////////////////////////// | 418 /////////////////////////////////////////////////////////////////////////////// |
419 GrFragmentProcessor* ColorTableEffect::Create(GrContext* context, SkBitmap bitma p, unsigned flags) { | |
386 | 420 |
387 ColorTableEffect::ColorTableEffect(GrTexture* texture, unsigned flags) | 421 GrTextureStripAtlas::Desc desc; |
422 desc.fWidth = bitmap.width(); | |
423 desc.fHeight = 128; | |
424 desc.fRowHeight = bitmap.height(); | |
425 desc.fContext = context; | |
426 desc.fConfig = SkImageInfo2GrPixelConfig(bitmap.info()); | |
427 GrTextureStripAtlas* atlas = GrTextureStripAtlas::GetAtlas(desc); | |
428 int row = atlas->lockRow(bitmap); | |
429 SkAutoTUnref<GrTexture> texture; | |
430 if (-1 == row) { | |
431 atlas = NULL; | |
432 // Passing params=NULL because this effect does no tiling or filtering. | |
433 texture.reset(GrRefCachedBitmapTexture(context, bitmap, NULL)); | |
434 } else { | |
435 texture.reset(SkRef(atlas->getTexture())); | |
436 } | |
437 | |
438 return SkNEW_ARGS(ColorTableEffect, (texture, atlas, row, flags)); | |
439 } | |
440 | |
441 ColorTableEffect::ColorTableEffect(GrTexture* texture, GrTextureStripAtlas* atla s, int row, | |
442 unsigned flags) | |
388 : fTextureAccess(texture, "a") | 443 : fTextureAccess(texture, "a") |
389 , fFlags(flags) { | 444 , fFlags(flags) |
445 , fAtlas(atlas) | |
446 , fRow(row) { | |
447 | |
390 this->addTextureAccess(&fTextureAccess); | 448 this->addTextureAccess(&fTextureAccess); |
391 } | 449 } |
392 | 450 |
393 ColorTableEffect::~ColorTableEffect() { | 451 ColorTableEffect::~ColorTableEffect() { |
452 if (fAtlas) { | |
453 fAtlas->unlockRow(fRow); | |
454 } | |
394 } | 455 } |
395 | 456 |
396 const GrBackendFragmentProcessorFactory& ColorTableEffect::getFactory() const { | 457 const GrBackendFragmentProcessorFactory& ColorTableEffect::getFactory() const { |
397 return GrTBackendFragmentProcessorFactory<ColorTableEffect>::getInstance(); | 458 return GrTBackendFragmentProcessorFactory<ColorTableEffect>::getInstance(); |
398 } | 459 } |
399 | 460 |
461 bool ColorTableEffect::onIsEqual(const GrFragmentProcessor& other) const { | |
462 // For non-atlased instances, the texture (compared by base class) is suffic ient to | |
463 // differentiate different tables. For atlased instances we ensure they are using the | |
464 // same row. | |
465 const ColorTableEffect& that = other.cast<ColorTableEffect>(); | |
466 SkASSERT(SkToBool(fAtlas) == SkToBool(that.fAtlas)); | |
467 // Ok to always do this comparison since both would be -1 if non-atlased. | |
468 return fRow == that.fRow; | |
469 } | |
470 | |
400 void ColorTableEffect::onComputeInvariantOutput(InvariantOutput* inout) const { | 471 void ColorTableEffect::onComputeInvariantOutput(InvariantOutput* inout) const { |
401 // If we kept the table in the effect then we could actually run known input s through the | 472 // If we kept the table in the effect then we could actually run known input s through the |
402 // table. | 473 // table. |
403 uint8_t invalidateFlags = 0; | 474 uint8_t invalidateFlags = 0; |
404 if (fFlags & SkTable_ColorFilter::kR_Flag) { | 475 if (fFlags & SkTable_ColorFilter::kR_Flag) { |
405 invalidateFlags |= kR_GrColorComponentFlag; | 476 invalidateFlags |= kR_GrColorComponentFlag; |
406 } | 477 } |
407 if (fFlags & SkTable_ColorFilter::kG_Flag) { | 478 if (fFlags & SkTable_ColorFilter::kG_Flag) { |
408 invalidateFlags |= kG_GrColorComponentFlag; | 479 invalidateFlags |= kG_GrColorComponentFlag; |
409 } | 480 } |
410 if (fFlags & SkTable_ColorFilter::kB_Flag) { | 481 if (fFlags & SkTable_ColorFilter::kB_Flag) { |
411 invalidateFlags |= kB_GrColorComponentFlag; | 482 invalidateFlags |= kB_GrColorComponentFlag; |
412 } | 483 } |
413 if (fFlags & SkTable_ColorFilter::kA_Flag) { | 484 if (fFlags & SkTable_ColorFilter::kA_Flag) { |
414 invalidateFlags |= kA_GrColorComponentFlag; | 485 invalidateFlags |= kA_GrColorComponentFlag; |
415 } | 486 } |
416 inout->invalidateComponents(invalidateFlags, InvariantOutput::kWill_ReadInpu t); | 487 inout->invalidateComponents(invalidateFlags, InvariantOutput::kWill_ReadInpu t); |
417 } | 488 } |
418 | 489 |
419 /////////////////////////////////////////////////////////////////////////////// | 490 /////////////////////////////////////////////////////////////////////////////// |
420 | 491 |
421 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(ColorTableEffect); | 492 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(ColorTableEffect); |
422 | 493 |
423 GrFragmentProcessor* ColorTableEffect::TestCreate(SkRandom* random, | 494 GrFragmentProcessor* ColorTableEffect::TestCreate(SkRandom* random, |
424 GrContext* context, | 495 GrContext* context, |
425 const GrDrawTargetCaps&, | 496 const GrDrawTargetCaps&, |
426 GrTexture* textures[]) { | 497 GrTexture* textures[]) { |
427 static unsigned kAllFlags = SkTable_ColorFilter::kR_Flag | SkTable_ColorFilt er::kG_Flag | | 498 int flags = 0; |
428 SkTable_ColorFilter::kB_Flag | SkTable_ColorFilt er::kA_Flag; | 499 uint8_t luts[256][4]; |
429 return ColorTableEffect::Create(textures[GrProcessorUnitTest::kAlphaTextureI dx], kAllFlags); | 500 do { |
501 for (int i = 0; i < 4; ++i) { | |
502 flags |= random->nextBool() ? (1 << i): 0; | |
503 } | |
504 } while (!flags); | |
505 for (int i = 0; i < 4; ++i) { | |
506 if (flags & (1 << i)) { | |
507 for (int j = 0; j < 256; ++j) { | |
508 luts[j][i] = SkToU8(random->nextBits(8)); | |
509 } | |
510 } | |
511 } | |
512 SkAutoTUnref<SkColorFilter> filter(SkTableColorFilter::CreateARGB( | |
513 (flags & (1 << 0)) ? luts[0] : NULL, | |
514 (flags & (1 << 1)) ? luts[1] : NULL, | |
515 (flags & (1 << 2)) ? luts[2] : NULL, | |
516 (flags & (1 << 3)) ? luts[3] : NULL | |
517 )); | |
518 return filter->asFragmentProcessor(context); | |
430 } | 519 } |
431 | 520 |
432 GrFragmentProcessor* SkTable_ColorFilter::asFragmentProcessor(GrContext* context ) const { | 521 GrFragmentProcessor* SkTable_ColorFilter::asFragmentProcessor(GrContext* context ) const { |
433 SkBitmap bitmap; | 522 SkBitmap bitmap; |
434 this->asComponentTable(&bitmap); | 523 this->asComponentTable(&bitmap); |
435 // passing NULL because this effect does no tiling or filtering. | 524 |
436 SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, bitmap, NU LL)); | 525 return ColorTableEffect::Create(context, bitmap, fFlags); |
437 return texture ? ColorTableEffect::Create(texture, fFlags) : NULL; | |
438 } | 526 } |
439 | 527 |
440 #endif // SK_SUPPORT_GPU | 528 #endif // SK_SUPPORT_GPU |
441 | 529 |
442 /////////////////////////////////////////////////////////////////////////////// | 530 /////////////////////////////////////////////////////////////////////////////// |
443 | 531 |
444 #ifdef SK_CPU_BENDIAN | 532 #ifdef SK_CPU_BENDIAN |
445 #else | 533 #else |
446 #define SK_A32_INDEX (3 - (SK_A32_SHIFT >> 3)) | 534 #define SK_A32_INDEX (3 - (SK_A32_SHIFT >> 3)) |
447 #define SK_R32_INDEX (3 - (SK_R32_SHIFT >> 3)) | 535 #define SK_R32_INDEX (3 - (SK_R32_SHIFT >> 3)) |
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458 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], | 546 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], |
459 const uint8_t tableR[256], | 547 const uint8_t tableR[256], |
460 const uint8_t tableG[256], | 548 const uint8_t tableG[256], |
461 const uint8_t tableB[256]) { | 549 const uint8_t tableB[256]) { |
462 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); | 550 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); |
463 } | 551 } |
464 | 552 |
465 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) | 553 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) |
466 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) | 554 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) |
467 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 555 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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