Implement crop rect support for SkMatrixConvolutionImageFilter.

src/core/SkImageFilter.cpp

 /*
  * Copyright 2012 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 "SkImageFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 88 matching lines @@
     SkASSERT(dst);
     return this->onFilterBounds(src, ctm, dst);
 }
 
 bool SkImageFilter::onFilterImage(Proxy*, const SkBitmap&, const SkMatrix&,
                                   SkBitmap*, SkIPoint*) {
     return false;
 }
 
 bool SkImageFilter::canFilterImageGPU() const {
-    return this->asNewEffect(NULL, NULL, SkMatrix::I());
+    return this->asNewEffect(NULL, NULL, SkMatrix::I(), SkIRect());
 }
 
 bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
                                    SkBitmap* result, SkIPoint* offset) {
 #if SK_SUPPORT_GPU
     SkBitmap input;
     SkASSERT(fInputCount == 1);
     if (!SkImageFilterUtils::GetInputResultGPU(this->getInput(0), proxy, src, ctm, &input, offset)) {
         return false;
     }
@@ skipping 14 matching lines @@
     desc.fConfig = kRGBA_8888_GrPixelConfig;
 
     GrAutoScratchTexture dst(context, desc);
     GrContext::AutoMatrix am;
     am.setIdentity(context);
     GrContext::AutoRenderTarget art(context, dst.texture()->asRenderTarget());
     GrContext::AutoClip acs(context, dstRect);
     GrEffectRef* effect;
     SkMatrix matrix(ctm);
     matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
-    this->asNewEffect(&effect, srcTexture, matrix);
+    this->asNewEffect(&effect, srcTexture, matrix, bounds);
     SkASSERT(effect);
     SkAutoUnref effectRef(effect);
     GrPaint paint;
     paint.addColorEffect(effect);
     context->drawRectToRect(paint, dstRect, srcRect);
 
     SkAutoTUnref<GrTexture> resultTex(dst.detach());
     SkImageFilterUtils::WrapTexture(resultTex, bounds.width(), bounds.height(), result);
     offset->fX += bounds.left();
     offset->fY += bounds.top();
@@ skipping 16 matching lines @@
     if (!(flags & CropRect::kHasBottom_CropEdge)) cropRectI.fBottom = SK_MaxS32;
     return rect->intersect(cropRectI);
 }
 
 bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
                                    SkIRect* dst) {
     *dst = src;
     return true;
 }
 
-bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&) const {
+bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&, const SkIRect&) const {
     return false;
 }
 
 bool SkImageFilter::asColorFilter(SkColorFilter**) const {
     return false;
 }