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 674 matching lines @@
     fsBuilder->codeAppendf("\tfloat height = %s.w - %s.y;\n", rectName, rectName);
 
     fsBuilder->codeAppendf("\tvec2 smallDims = vec2(width - %s, height-%s);\n", profileSizeName, profileSizeName);
     fsBuilder->codeAppendf("\tfloat center = 2.0 * floor(%s/2.0 + .25) - 1.0;\n", profileSizeName);
     fsBuilder->codeAppendf("\tvec2 wh = smallDims - vec2(center,center);\n");
 
     OutputRectBlurProfileLookup(fsBuilder, samplers[0], "horiz_lookup", profileSizeName, "translatedPos.x", "width", "wh.x");
     OutputRectBlurProfileLookup(fsBuilder, samplers[0], "vert_lookup", profileSizeName, "translatedPos.y", "height", "wh.y");
 
     fsBuilder->codeAppendf("\tfloat final = horiz_lookup * vert_lookup;\n");
-    fsBuilder->codeAppendf("\t%s = src * vec4(final);\n", outputColor );
+    fsBuilder->codeAppendf("\t%s = src * final;\n", outputColor );
 }
 
 void GrGLRectBlurEffect::setData(const GrGLProgramDataManager& pdman,
                                  const GrProcessor& proc) {
     const GrRectBlurEffect& rbe = proc.cast<GrRectBlurEffect>();
     SkRect rect = rbe.getRect();
 
     pdman.set4f(fProxyRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
     pdman.set1f(fProfileSizeUniform, SkScalarCeilToScalar(6*rbe.getSigma()));
 }
@@ skipping 53 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->mulByUnknownAlpha();
 }
 
 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->mulByUnknownAlpha();
 }
 
 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