In image filters, apply the CTM and offset to the crop rect. This is necessary to compensate for bo…

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "effects/GrTextureDomainEffect.h"
@@ skipping 1458 matching lines @@
     GrTexture* texture;
     // draw sprite uses the default texture params
     SkAutoCachedTexture act(this, bitmap, NULL, &texture);
 
     SkImageFilter* filter = paint.getImageFilter();
     SkIPoint offset = SkIPoint::Make(left, top);
     // This bitmap will own the filtered result as a texture.
     SkBitmap filteredBitmap;
 
     if (NULL != filter) {
-        if (filter_texture(this, fContext, texture, filter, w, h, SkMatrix::I(), &filteredBitmap,
+        SkMatrix matrix(*draw.fMatrix);
+        matrix.postTranslate(SkIntToScalar(-left), SkIntToScalar(-top));
+        if (filter_texture(this, fContext, texture, filter, w, h, matrix, &filteredBitmap,
                            &offset)) {
             texture = (GrTexture*) filteredBitmap.getTexture();
             w = filteredBitmap.width();
             h = filteredBitmap.height();
         } else {
             return;
         }
     }
 
     GrPaint grPaint;
@@ skipping 66 matching lines @@
     const SkBitmap& bm = dev->accessBitmap(false);
     int w = bm.width();
     int h = bm.height();
 
     SkImageFilter* filter = paint.getImageFilter();
     // This bitmap will own the filtered result as a texture.
     SkBitmap filteredBitmap;
 
     if (NULL != filter) {
         SkIPoint offset = SkIPoint::Make(0, 0);
-        if (filter_texture(this, fContext, devTex, filter, w, h, SkMatrix::I(), &filteredBitmap,
+        SkMatrix matrix(*draw.fMatrix);
+        matrix.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y));
+        if (filter_texture(this, fContext, devTex, filter, w, h, matrix, &filteredBitmap,
                            &offset)) {
             devTex = filteredBitmap.getTexture();
             w = filteredBitmap.width();
             h = filteredBitmap.height();
             x += offset.fX;
             y += offset.fY;
         } else {
             return;
         }
     }
@@ skipping 278 matching lines @@
                          GrTexture* texture,
                          bool needClear)
     : SkDevice(make_bitmap(context, texture->asRenderTarget())) {
 
     SkASSERT(texture && texture->asRenderTarget());
     // This constructor is called from onCreateCompatibleDevice. It has locked the RT in the texture
     // cache. We pass true for the third argument so that it will get unlocked.
     this->initFromRenderTarget(context, texture->asRenderTarget(), true);
     fNeedClear = needClear;
 }