fix off-by-one error in texture coordinate calculations for rrect gpu

src/effects/SkBlurMask.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 "SkBlurMask.h"
@@ skipping 465 matching lines @@
 // a bug in gcc98
 void SkMask_FreeImage(uint8_t* image);
 void SkMask_FreeImage(uint8_t* image) {
     SkMask::FreeImage(image);
 }
 
 bool SkBlurMask::BoxBlur(SkMask* dst, const SkMask& src,
                          SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
                          SkIPoint* margin, bool force_quality) {
 
+    SkDebugf( "Blurring something: sigma=%f\n", sigma );

[bsalomon, 2014/05/19 18:39:26]

should prolly remove this, otherwise lgtm.

+
     if (src.fFormat != SkMask::kA8_Format) {
         return false;
     }
 
     // Force high quality off for small radii (performance)
     if (!force_quality && sigma <= SkIntToScalar(2)) {
         quality = kLow_SkBlurQuality;
     }
 
     SkScalar passRadius;
@@ skipping 491 matching lines @@
         (void)autoCall.detach();
     }
 
     if (style == kInner_SkBlurStyle) {
         dst->fBounds = src.fBounds; // restore trimmed bounds
         dst->fRowBytes = src.fRowBytes;
     }
 
     return true;
 }