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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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407 GrTexture* color = colorBM.getTexture(); | 407 GrTexture* color = colorBM.getTexture(); |
408 GrTexture* displacement = displacementBM.getTexture(); | 408 GrTexture* displacement = displacementBM.getTexture(); |
409 GrContext* context = color->getContext(); | 409 GrContext* context = color->getContext(); |
410 | 410 |
411 GrTextureDesc desc; | 411 GrTextureDesc desc; |
412 desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit; | 412 desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit; |
413 desc.fWidth = bounds.width(); | 413 desc.fWidth = bounds.width(); |
414 desc.fHeight = bounds.height(); | 414 desc.fHeight = bounds.height(); |
415 desc.fConfig = kSkia8888_GrPixelConfig; | 415 desc.fConfig = kSkia8888_GrPixelConfig; |
416 | 416 |
417 GrAutoScratchTexture ast(context, desc); | 417 SkAutoTUnref<GrTexture> dst( |
418 if (NULL == ast.texture()) { | 418 context->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch)); |
| 419 |
| 420 if (!dst) { |
419 return false; | 421 return false; |
420 } | 422 } |
421 SkAutoTUnref<GrTexture> dst(ast.detach()); | |
422 | 423 |
423 GrContext::AutoRenderTarget art(context, dst->asRenderTarget()); | 424 GrContext::AutoRenderTarget art(context, dst->asRenderTarget()); |
424 | 425 |
425 SkVector scale = SkVector::Make(fScale, fScale); | 426 SkVector scale = SkVector::Make(fScale, fScale); |
426 ctx.ctm().mapVectors(&scale, 1); | 427 ctx.ctm().mapVectors(&scale, 1); |
427 | 428 |
428 GrPaint paint; | 429 GrPaint paint; |
429 SkMatrix offsetMatrix = GrCoordTransform::MakeDivByTextureWHMatrix(displacem
ent); | 430 SkMatrix offsetMatrix = GrCoordTransform::MakeDivByTextureWHMatrix(displacem
ent); |
430 offsetMatrix.preTranslate(SkIntToScalar(colorOffset.fX - displacementOffset.
fX), | 431 offsetMatrix.preTranslate(SkIntToScalar(colorOffset.fX - displacementOffset.
fX), |
431 SkIntToScalar(colorOffset.fY - displacementOffset.
fY)); | 432 SkIntToScalar(colorOffset.fY - displacementOffset.
fY)); |
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631 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc, | 632 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc, |
632 const GrGLCaps&, GrProcessorKeyBuilder* b
) { | 633 const GrGLCaps&, GrProcessorKeyBuilder* b
) { |
633 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); | 634 const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMap
Effect>(); |
634 | 635 |
635 uint32_t xKey = displacementMap.xChannelSelector(); | 636 uint32_t xKey = displacementMap.xChannelSelector(); |
636 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; | 637 uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBit
s; |
637 | 638 |
638 b->add32(xKey | yKey); | 639 b->add32(xKey | yKey); |
639 } | 640 } |
640 #endif | 641 #endif |
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