Use static XPF for porter duff xp factories.

src/core/SkXfermode.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 "SkXfermode.h"
 #include "SkXfermode_opts_SSE2.h"
@@ skipping 673 matching lines @@
 }
 
 
 #if SK_SUPPORT_GPU
 #include "effects/GrPorterDuffXferProcessor.h"
 
 bool SkXfermode::AsFragmentProcessorOrXPFactory(SkXfermode* xfermode,
                                                 GrFragmentProcessor** fp,
                                                 GrXPFactory** xpf,
                                                 Coeff* src, Coeff* dst) {
+    Mode mode;
     if (NULL == xfermode) {
         SkAssertResult(ModeAsCoeff(kSrcOver_Mode, src, dst));
         *xpf = GrPorterDuffXPFactory::Create(*src, *dst);
         return true;
+    } else if (xfermode->asMode(&mode) && mode <= kLastCoeffMode) {
+        *xpf = GrPorterDuffXPFactory::Create(mode);
+        // TODO: This Line will be removed in follow up cl that handles blending and thus we won't
+        // have to set coeffs here.
+        SkAssertResult(ModeAsCoeff(mode, src, dst));
+        return true;
     } else if (xfermode->asCoeff(src, dst)) {
         *xpf = GrPorterDuffXPFactory::Create(*src, *dst);
         return true;
     } else if (xfermode->asXPFactory(xpf)) {
         *src = SkXfermode::kOne_Coeff;
         *dst = SkXfermode::kZero_Coeff;
         return true;
     } else {
         return xfermode->asFragmentProcessor(fp);
     }
@@ skipping 1240 matching lines @@
         } else {
             proc16 = rec.fProc16_General;
         }
     }
     return proc16;
 }
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END