Make all blending up to GrOptDrawState be handled by the xp/xp factory.

src/effects/SkBlurMaskFilter.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlurMaskFilter.h"
 #include "SkBlurMask.h"
 #include "SkGpuBlurUtils.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 #include "SkMaskFilter.h"
 #include "SkRRect.h"
 #include "SkRTConf.h"
 #include "SkStringUtils.h"
 #include "SkStrokeRec.h"
 
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
 #include "GrTexture.h"
 #include "GrFragmentProcessor.h"
 #include "GrInvariantOutput.h"
 #include "gl/GrGLProcessor.h"
 #include "gl/builders/GrGLProgramBuilder.h"
+#include "effects/GrPorterDuffXferProcessor.h"
 #include "effects/GrSimpleTextureEffect.h"
 #include "GrTBackendProcessorFactory.h"
 #include "SkGrPixelRef.h"
 #include "SkDraw.h"
 #endif
 
 SkScalar SkBlurMaskFilter::ConvertRadiusToSigma(SkScalar radius) {
     return SkBlurMask::ConvertRadiusToSigma(radius);
 }
 
@@ skipping 1177 matching lines @@
     if (!isNormalBlur) {
         context->setIdentityMatrix();
         GrPaint paint;
         SkMatrix matrix;
         matrix.setIDiv(src->width(), src->height());
         // Blend pathTexture over blurTexture.
         GrContext::AutoRenderTarget art(context, (*result)->asRenderTarget());
         paint.addColorProcessor(GrSimpleTextureEffect::Create(src, matrix))->unref();
         if (kInner_SkBlurStyle == fBlurStyle) {
             // inner:  dst = dst * src
-            paint.setBlendFunc(kDC_GrBlendCoeff, kZero_GrBlendCoeff);
+            GrXPFactory* xpFactory = GrPorterDuffXPFactory::Create(kDC_GrBlendCoeff,
+                                                                   kZero_GrBlendCoeff);
+            paint.setXPFactory(xpFactory)->unref();
         } else if (kSolid_SkBlurStyle == fBlurStyle) {
             // solid:  dst = src + dst - src * dst
             //             = (1 - dst) * src + 1 * dst
-            paint.setBlendFunc(kIDC_GrBlendCoeff, kOne_GrBlendCoeff);
+            GrXPFactory* xpFactory = GrPorterDuffXPFactory::Create(kIDC_GrBlendCoeff,
+                                                                   kOne_GrBlendCoeff);
+            paint.setXPFactory(xpFactory)->unref();
         } else if (kOuter_SkBlurStyle == fBlurStyle) {
             // outer:  dst = dst * (1 - src)
             //             = 0 * src + (1 - src) * dst
-            paint.setBlendFunc(kZero_GrBlendCoeff, kISC_GrBlendCoeff);
+            GrXPFactory* xpFactory = GrPorterDuffXPFactory::Create(kZero_GrBlendCoeff,
+                                                                   kISC_GrBlendCoeff);
+            paint.setXPFactory(xpFactory)->unref();
         }
         context->drawRect(paint, clipRect);
     }
 
     return true;
 }
 
 #endif // SK_SUPPORT_GPU
 
 
@@ skipping 22 matching lines @@
     } else {
         str->append("None");
     }
     str->append("))");
 }
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkBlurMaskFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurMaskFilterImpl)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END