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

gm/texdata.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This test only works with the GPU backend.
 
 #include "gm.h"
 
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
+#include "SkColorPriv.h"
+#include "effects/GrPorterDuffXferProcessor.h"
 #include "effects/GrSimpleTextureEffect.h"
-#include "SkColorPriv.h"
 
 namespace skiagm {
 
 static const int S = 200;
 
 class TexDataGM : public GM {
 public:
     TexDataGM() {
         this->setBGColor(0xff000000);
     }
@@ skipping 64 matching lines @@
                 if (!texture) {
                     return;
                 }
                 SkAutoTUnref<GrTexture> au(texture);
 
                 GrContext::AutoClip acs(ctx, SkRect::MakeWH(2*S, 2*S));
 
                 ctx->setRenderTarget(target);
 
                 GrPaint paint;
-                paint.setBlendFunc(kOne_GrBlendCoeff, kISA_GrBlendCoeff);
+                paint.setPorterDuffXPFactory(SkXfermode::kSrcOver_Mode);
+
                 SkMatrix vm;
                 if (i) {
                     vm.setRotate(90 * SK_Scalar1,
                                  S * SK_Scalar1,
                                  S * SK_Scalar1);
                 } else {
                     vm.reset();
                 }
                 ctx->setMatrix(vm);
                 SkMatrix tm;
@@ skipping 25 matching lines @@
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new TexDataGM; }
 static GMRegistry reg(MyFactory);
 
 }
 
 #endif