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| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "SkTableColorFilter.h" | 8 #include "SkTableColorFilter.h" |
| 9 | 9 |
| 10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
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| 329 return SkTableColorFilter::CreateARGB(concatA, concatR, concatG, concatB); | 329 return SkTableColorFilter::CreateARGB(concatA, concatR, concatG, concatB); |
| 330 } | 330 } |
| 331 | 331 |
| 332 #if SK_SUPPORT_GPU | 332 #if SK_SUPPORT_GPU |
| 333 | 333 |
| 334 #include "GrFragmentProcessor.h" | 334 #include "GrFragmentProcessor.h" |
| 335 #include "GrInvariantOutput.h" | 335 #include "GrInvariantOutput.h" |
| 336 #include "SkGr.h" | 336 #include "SkGr.h" |
| 337 #include "effects/GrTextureStripAtlas.h" | 337 #include "effects/GrTextureStripAtlas.h" |
| 338 #include "gl/GrGLFragmentProcessor.h" | 338 #include "gl/GrGLFragmentProcessor.h" |
| 339 #include "gl/builders/GrGLProgramBuilder.h" | 339 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 340 #include "glsl/GrGLSLProgramBuilder.h" |
| 340 #include "glsl/GrGLSLProgramDataManager.h" | 341 #include "glsl/GrGLSLProgramDataManager.h" |
| 341 | 342 |
| 342 class ColorTableEffect : public GrFragmentProcessor { | 343 class ColorTableEffect : public GrFragmentProcessor { |
| 343 public: | 344 public: |
| 344 static const GrFragmentProcessor* Create(GrContext* context, SkBitmap bitmap
, unsigned flags); | 345 static const GrFragmentProcessor* Create(GrContext* context, SkBitmap bitmap
, unsigned flags); |
| 345 | 346 |
| 346 virtual ~ColorTableEffect(); | 347 virtual ~ColorTableEffect(); |
| 347 | 348 |
| 348 const char* name() const override { return "ColorTable"; } | 349 const char* name() const override { return "ColorTable"; } |
| 349 | 350 |
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| 412 pdm.set4fv(fRGBAYValuesUni, 1, rgbaYValues); | 413 pdm.set4fv(fRGBAYValuesUni, 1, rgbaYValues); |
| 413 } | 414 } |
| 414 | 415 |
| 415 void GLColorTableEffect::emitCode(EmitArgs& args) { | 416 void GLColorTableEffect::emitCode(EmitArgs& args) { |
| 416 const char* yoffsets; | 417 const char* yoffsets; |
| 417 fRGBAYValuesUni = args.fBuilder->addUniform(GrGLSLFPBuilder::kFragment_Visib
ility, | 418 fRGBAYValuesUni = args.fBuilder->addUniform(GrGLSLFPBuilder::kFragment_Visib
ility, |
| 418 kVec4f_GrSLType, kDefault_GrSLPr
ecision, | 419 kVec4f_GrSLType, kDefault_GrSLPr
ecision, |
| 419 "yoffsets", &yoffsets); | 420 "yoffsets", &yoffsets); |
| 420 static const float kColorScaleFactor = 255.0f / 256.0f; | 421 static const float kColorScaleFactor = 255.0f / 256.0f; |
| 421 static const float kColorOffsetFactor = 1.0f / 512.0f; | 422 static const float kColorOffsetFactor = 1.0f / 512.0f; |
| 422 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); | 423 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder()
; |
| 423 if (nullptr == args.fInputColor) { | 424 if (nullptr == args.fInputColor) { |
| 424 // the input color is solid white (all ones). | 425 // the input color is solid white (all ones). |
| 425 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; | 426 static const float kMaxValue = kColorScaleFactor + kColorOffsetFactor; |
| 426 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", | 427 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%f, %f, %f, %f);\n", |
| 427 kMaxValue, kMaxValue, kMaxValue, kMaxValue); | 428 kMaxValue, kMaxValue, kMaxValue, kMaxValue); |
| 428 | 429 |
| 429 } else { | 430 } else { |
| 430 fsBuilder->codeAppendf("\t\tfloat nonZeroAlpha = max(%s.a, .0001);\n", a
rgs.fInputColor); | 431 fsBuilder->codeAppendf("\t\tfloat nonZeroAlpha = max(%s.a, .0001);\n", a
rgs.fInputColor); |
| 431 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%s.rgb / nonZeroAlpha, non
ZeroAlpha);\n", | 432 fsBuilder->codeAppendf("\t\tvec4 coord = vec4(%s.rgb / nonZeroAlpha, non
ZeroAlpha);\n", |
| 432 args.fInputColor); | 433 args.fInputColor); |
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| 494 this->addTextureAccess(&fTextureAccess); | 495 this->addTextureAccess(&fTextureAccess); |
| 495 } | 496 } |
| 496 | 497 |
| 497 ColorTableEffect::~ColorTableEffect() { | 498 ColorTableEffect::~ColorTableEffect() { |
| 498 if (fAtlas) { | 499 if (fAtlas) { |
| 499 fAtlas->unlockRow(fRow); | 500 fAtlas->unlockRow(fRow); |
| 500 } | 501 } |
| 501 } | 502 } |
| 502 | 503 |
| 503 void ColorTableEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, | 504 void ColorTableEffect::onGetGLProcessorKey(const GrGLSLCaps& caps, |
| 504 GrProcessorKeyBuilder* b) const { | 505 GrProcessorKeyBuilder* b) const { |
| 505 GLColorTableEffect::GenKey(*this, caps, b); | 506 GLColorTableEffect::GenKey(*this, caps, b); |
| 506 } | 507 } |
| 507 | 508 |
| 508 GrGLFragmentProcessor* ColorTableEffect::onCreateGLInstance() const { | 509 GrGLFragmentProcessor* ColorTableEffect::onCreateGLInstance() const { |
| 509 return new GLColorTableEffect(*this); | 510 return new GLColorTableEffect(*this); |
| 510 } | 511 } |
| 511 | 512 |
| 512 bool ColorTableEffect::onIsEqual(const GrFragmentProcessor& other) const { | 513 bool ColorTableEffect::onIsEqual(const GrFragmentProcessor& other) const { |
| 513 // For non-atlased instances, the texture (compared by base class) is suffic
ient to | 514 // For non-atlased instances, the texture (compared by base class) is suffic
ient to |
| 514 // differentiate different tables. For atlased instances we ensure they are
using the | 515 // differentiate different tables. For atlased instances we ensure they are
using the |
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| 597 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], | 598 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], |
| 598 const uint8_t tableR[256], | 599 const uint8_t tableR[256], |
| 599 const uint8_t tableG[256], | 600 const uint8_t tableG[256], |
| 600 const uint8_t tableB[256]) { | 601 const uint8_t tableB[256]) { |
| 601 return new SkTable_ColorFilter(tableA, tableR, tableG, tableB); | 602 return new SkTable_ColorFilter(tableA, tableR, tableG, tableB); |
| 602 } | 603 } |
| 603 | 604 |
| 604 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) | 605 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) |
| 605 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) | 606 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) |
| 606 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 607 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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