tunnel down texture-size-constraint to imagefilters

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 49 matching lines @@
                                   GrDrawContext* drawContext,
                                   GrPaint* grp,
                                   const GrClip&,
                                   const SkMatrix& viewMatrix,
                                   const SkStrokeRec& strokeRec,
                                   const SkRRect& rrect) const override;
     bool filterMaskGPU(GrTexture* src,
                        const SkMatrix& ctm,
                        const SkRect& maskRect,
                        GrTexture** result,
-                       bool canOverwriteSrc) const override;
+                       bool canOverwriteSrc,
+                       GrTextureProvider::SizeConstraint) const override;
 #endif
 
     void computeFastBounds(const SkRect&, SkRect*) const override;
     bool asABlur(BlurRec*) const override;
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurMaskFilterImpl)
 
 protected:
     FilterReturn filterRectsToNine(const SkRect[], int count, const SkMatrix&,
@@ skipping 1134 matching lines @@
         srcRect.setEmpty();
     }
     *maskRect = srcRect;
     return true;
 }
 
 bool SkBlurMaskFilterImpl::filterMaskGPU(GrTexture* src,
                                          const SkMatrix& ctm,
                                          const SkRect& maskRect,
                                          GrTexture** result,
-                                         bool canOverwriteSrc) const {
+                                         bool canOverwriteSrc,
+                                         GrTextureProvider::SizeConstraint constraint) const {
     SkRect clipRect = SkRect::MakeWH(maskRect.width(), maskRect.height());
 
     GrContext* context = src->getContext();
 
     SkScalar xformedSigma = this->computeXformedSigma(ctm);
     SkASSERT(xformedSigma > 0);
 
     // If we're doing a normal blur, we can clobber the pathTexture in the
     // gaussianBlur.  Otherwise, we need to save it for later compositing.
     bool isNormalBlur = (kNormal_SkBlurStyle == fBlurStyle);
     *result = SkGpuBlurUtils::GaussianBlur(context, src, isNormalBlur && canOverwriteSrc,
-                                           clipRect, false, xformedSigma, xformedSigma);
+                                           clipRect, false, xformedSigma, xformedSigma,
+                                           constraint);

[Stephen White, 2015/10/22 15:25:04]

Just hardcode this to kApproxMatch here, and avoid all the plumbing?

[reed1, 2015/10/22 16:24:55]

Doh, great catch. Didn't realize the output of this method never "escaped" to
become a real boy. Done.

     if (nullptr == *result) {
         return false;
     }
 
     if (!isNormalBlur) {
         GrPaint paint;
         SkMatrix matrix;
         matrix.setIDiv(src->width(), src->height());
         // Blend pathTexture over blurTexture.
         paint.addCoverageFragmentProcessor(GrSimpleTextureEffect::Create(src, matrix))->unref();
@@ skipping 49 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