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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 "SkDevice.h" | 9 #include "SkDevice.h" |
10 #include "SkReadBuffer.h" | 10 #include "SkReadBuffer.h" |
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532 d->fTextures[texIdxDispl], SkMatrix::
I(), | 532 d->fTextures[texIdxDispl], SkMatrix::
I(), |
533 d->fTextures[texIdxColor], colorDimen
sions); | 533 d->fTextures[texIdxColor], colorDimen
sions); |
534 } | 534 } |
535 | 535 |
536 /////////////////////////////////////////////////////////////////////////////// | 536 /////////////////////////////////////////////////////////////////////////////// |
537 | 537 |
538 void GrGLDisplacementMapEffect::emitCode(EmitArgs& args) { | 538 void GrGLDisplacementMapEffect::emitCode(EmitArgs& args) { |
539 const GrDisplacementMapEffect& displacementMap = args.fFp.cast<GrDisplacemen
tMapEffect>(); | 539 const GrDisplacementMapEffect& displacementMap = args.fFp.cast<GrDisplacemen
tMapEffect>(); |
540 const GrTextureDomain& domain = displacementMap.domain(); | 540 const GrTextureDomain& domain = displacementMap.domain(); |
541 | 541 |
542 fScaleUni = args.fUniformHandler->addUniform(GrGLSLUniformHandler::kFragment
_Visibility, | 542 fScaleUni = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, |
543 kVec2f_GrSLType, kDefault_GrSLP
recision, "Scale"); | 543 kVec2f_GrSLType, kDefault_GrSLP
recision, "Scale"); |
544 const char* scaleUni = args.fUniformHandler->getUniformCStr(fScaleUni); | 544 const char* scaleUni = args.fUniformHandler->getUniformCStr(fScaleUni); |
545 const char* dColor = "dColor"; | 545 const char* dColor = "dColor"; |
546 const char* cCoords = "cCoords"; | 546 const char* cCoords = "cCoords"; |
547 const char* nearZero = "1e-6"; // Since 6.10352e−5 is the smallest half floa
t, use | 547 const char* nearZero = "1e-6"; // Since 6.10352e−5 is the smallest half floa
t, use |
548 // a number smaller than that to approximate
0, but | 548 // a number smaller than that to approximate
0, but |
549 // leave room for 32-bit float GPU rounding e
rrors. | 549 // leave room for 32-bit float GPU rounding e
rrors. |
550 | 550 |
551 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; | 551 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; |
552 fragBuilder->codeAppendf("\t\tvec4 %s = ", dColor); | 552 fragBuilder->codeAppendf("\t\tvec4 %s = ", dColor); |
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625 const GrGLSLCaps&, GrProcessorKeyBuilder*
b) { | 625 const GrGLSLCaps&, GrProcessorKeyBuilder*
b) { |
626 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); | 626 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); |
627 | 627 |
628 uint32_t xKey = displacementMap.xChannelSelector(); | 628 uint32_t xKey = displacementMap.xChannelSelector(); |
629 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; | 629 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; |
630 | 630 |
631 b->add32(xKey | yKey); | 631 b->add32(xKey | yKey); |
632 } | 632 } |
633 #endif | 633 #endif |
634 | 634 |
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