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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 "SkDisplacementMapEffect.h" | 8 #include "SkDisplacementMapEffect.h" |
9 #include "SkReadBuffer.h" | 9 #include "SkReadBuffer.h" |
10 #include "SkWriteBuffer.h" | 10 #include "SkWriteBuffer.h" |
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526 | 526 |
527 void GrGLDisplacementMapEffect::emitCode(GrGLFPBuilder* builder, | 527 void GrGLDisplacementMapEffect::emitCode(GrGLFPBuilder* builder, |
528 const GrFragmentProcessor&, | 528 const GrFragmentProcessor&, |
529 const char* outputColor, | 529 const char* outputColor, |
530 const char* inputColor, | 530 const char* inputColor, |
531 const TransformedCoordsArray& coords, | 531 const TransformedCoordsArray& coords, |
532 const TextureSamplerArray& samplers) { | 532 const TextureSamplerArray& samplers) { |
533 sk_ignore_unused_variable(inputColor); | 533 sk_ignore_unused_variable(inputColor); |
534 | 534 |
535 fScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, | 535 fScaleUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
536 kVec2f_GrSLType, "Scale"); | 536 kVec2f_GrSLType, kDefault_GrSLPrecision, "Sc
ale"); |
537 const char* scaleUni = builder->getUniformCStr(fScaleUni); | 537 const char* scaleUni = builder->getUniformCStr(fScaleUni); |
538 const char* dColor = "dColor"; | 538 const char* dColor = "dColor"; |
539 const char* cCoords = "cCoords"; | 539 const char* cCoords = "cCoords"; |
540 const char* outOfBounds = "outOfBounds"; | 540 const char* outOfBounds = "outOfBounds"; |
541 const char* nearZero = "1e-6"; // Since 6.10352e−5 is the smallest half floa
t, use | 541 const char* nearZero = "1e-6"; // Since 6.10352e−5 is the smallest half floa
t, use |
542 // a number smaller than that to approximate
0, but | 542 // a number smaller than that to approximate
0, but |
543 // leave room for 32-bit float GPU rounding e
rrors. | 543 // leave room for 32-bit float GPU rounding e
rrors. |
544 | 544 |
545 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); | 545 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
546 fsBuilder->codeAppendf("\t\tvec4 %s = ", dColor); | 546 fsBuilder->codeAppendf("\t\tvec4 %s = ", dColor); |
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615 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc, | 615 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc, |
616 const GrGLCaps&, GrProcessorKeyBuilder* b
) { | 616 const GrGLCaps&, GrProcessorKeyBuilder* b
) { |
617 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); | 617 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); |
618 | 618 |
619 uint32_t xKey = displacementMap.xChannelSelector(); | 619 uint32_t xKey = displacementMap.xChannelSelector(); |
620 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; | 620 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; |
621 | 621 |
622 b->add32(xKey | yKey); | 622 b->add32(xKey | yKey); |
623 } | 623 } |
624 #endif | 624 #endif |
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