Create helper functions to use in computeInvariantOutput calls

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"
@@ skipping 748 matching lines @@
 const GrBackendFragmentProcessorFactory& GrRectBlurEffect::getFactory() const {
     return GrTBackendFragmentProcessorFactory<GrRectBlurEffect>::getInstance();
 }
 
 bool GrRectBlurEffect::onIsEqual(const GrProcessor& sBase) const {
     const GrRectBlurEffect& s = sBase.cast<GrRectBlurEffect>();
     return this->getSigma() == s.getSigma() && this->getRect() == s.getRect();
 }
 
 void GrRectBlurEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
-    inout->fValidFlags = 0;
-    inout->fIsSingleComponent = false;
+    inout->unknownOutput();

[bsalomon, 2014/10/10 19:48:16]

I think this can be mulByUnknownAlpha()

[egdaniel, 2014/10/13 16:44:57]

Done.

 }
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRectBlurEffect);
 
 GrFragmentProcessor* GrRectBlurEffect::TestCreate(SkRandom* random,
                                                   GrContext* context,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture**) {
     float sigma = random->nextRangeF(3,8);
     float width = random->nextRangeF(200,300);
@@ skipping 142 matching lines @@
 
     SkAutoTUnref<GrTexture> blurunref(blurNinePatchTexture);
     if (NULL == blurNinePatchTexture) {
         return NULL;
     }
 
     return SkNEW_ARGS(GrRRectBlurEffect, (sigma, rrect, blurNinePatchTexture));
 }
 
 void GrRRectBlurEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
-    inout->fValidFlags = 0;
-    inout->fIsSingleComponent = false;
+    inout->unknownOutput();

[bsalomon, 2014/10/10 19:48:16]

and this

[egdaniel, 2014/10/13 16:44:57]

Done.

 }
 
 const GrBackendFragmentProcessorFactory& GrRRectBlurEffect::getFactory() const {
     return GrTBackendFragmentProcessorFactory<GrRRectBlurEffect>::getInstance();
 }
 
 GrRRectBlurEffect::GrRRectBlurEffect(float sigma, const SkRRect& rrect, GrTexture *ninePatchTexture)
     : fRRect(rrect),
       fSigma(sigma),
       fNinePatchAccess(ninePatchTexture) {
@@ skipping 275 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