Use SkXfermode as public facing enum for GrPorterDuffXP

src/gpu/GrPaint.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrPaint.h"
 
 #include "GrProcOptInfo.h"
+#include "effects/GrCoverageSetOpXP.h"
 #include "effects/GrPorterDuffXferProcessor.h"
 #include "effects/GrSimpleTextureEffect.h"
 
 GrPaint::GrPaint()
     : fAntiAlias(false)
     , fDither(false)
     , fColor(GrColor_WHITE) {
 }
 
+void GrPaint::setCoverageSetOpXPFactory(SkRegion::Op regionOp, bool invertCoverage) {
+    fXPFactory.reset(GrCoverageSetOpXPFactory::Create(regionOp, invertCoverage));
+}
+
 void GrPaint::addColorTextureProcessor(GrTexture* texture, const SkMatrix& matrix) {
     this->addColorProcessor(GrSimpleTextureEffect::Create(texture, matrix))->unref();
 }
 
 void GrPaint::addCoverageTextureProcessor(GrTexture* texture, const SkMatrix& matrix) {
     this->addCoverageProcessor(GrSimpleTextureEffect::Create(texture, matrix))->unref();
 }
 
 void GrPaint::addColorTextureProcessor(GrTexture* texture,
                                        const SkMatrix& matrix,
@@ skipping 18 matching lines @@
     GrXPFactory::InvariantOutput output;
     fXPFactory->getInvariantOutput(colorProcInfo, coverageProcInfo, &output);
 
     if (kRGBA_GrColorComponentFlags == output.fBlendedColorFlags &&
         0xFF == GrColorUnpackA(output.fBlendedColor)) {
         *color = output.fBlendedColor;
         return true;
     }
     return false;
 }