1 2 /* 3 * Copyright 2013 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 #include "GrPaint.h" 10 11 #include "GrProcOptInfo.h" 12 #include "effects/GrCoverageSetOpXP.h" 13 #include "effects/GrPorterDuffXferProcessor.h" 14 #include "effects/GrSimpleTextureEffect.h" 15 16 GrPaint::GrPaint() 17 : fAntiAlias(false) 18 , fColor(GrColor_WHITE) {} 19 20 void GrPaint::setCoverageSetOpXPFactory(SkRegion::Op regionOp, bool invertCoverage) { 21 fXPFactory.reset(GrCoverageSetOpXPFactory::Create(regionOp, invertCoverage)); 22 } 23 24 void GrPaint::addColorTextureProcessor(GrTexture* texture, const SkMatrix& matrix) { 25 this->addColorFragmentProcessor(GrSimpleTextureEffect::Create(texture, matrix))->unref(); 26 } 27 28 void GrPaint::addCoverageTextureProcessor(GrTexture* texture, const SkMatrix& matrix) { 29 this->addCoverageFragmentProcessor(GrSimpleTextureEffect::Create(texture, matrix))->unref(); 30 } 31 32 void GrPaint::addColorTextureProcessor(GrTexture* texture, 33 const SkMatrix& matrix, 34 const GrTextureParams& params) { 35 this->addColorFragmentProcessor(GrSimpleTextureEffect::Create(texture, 36 matrix, params))->unref(); 37 } 38 39 void GrPaint::addCoverageTextureProcessor(GrTexture* texture, 40 const SkMatrix& matrix, 41 const GrTextureParams& params) { 42 this->addCoverageFragmentProcessor(GrSimpleTextureEffect::Create(texture, 43 matrix, params))->unref(); 44 } 45 46 bool GrPaint::isConstantBlendedColor(GrColor* color) const { 47 GrProcOptInfo colorProcInfo; 48 colorProcInfo.calcWithInitialValues(fColorFragmentProcessors.begin(), 49 this->numColorFragmentProcessors(), fColor, 50 kRGBA_GrColorComponentFlags, false); 51 52 GrXPFactory::InvariantBlendedColor blendedColor; 53 if (fXPFactory) { 54 fXPFactory->getInvariantBlendedColor(colorProcInfo, &blendedColor); 55 } else { 56 GrPorterDuffXPFactory::SrcOverInvariantBlendedColor(colorProcInfo.color(), 57 colorProcInfo.validFlags(), 58 colorProcInfo.isOpaque(), 59 &blendedColor); 60 } 61 62 if (kRGBA_GrColorComponentFlags == blendedColor.fKnownColorFlags) { 63 *color = blendedColor.fKnownColor; 64 return true; 65 } 66 return false; 67 } 68
