check for null-pixelref

src/images/SkImageDecoder.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 "SkImageDecoder.h"
 #include "SkBitmap.h"
@@ skipping 204 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 
 bool SkImageDecoder::DecodeFile(const char file[], SkBitmap* bm, SkColorType pref,  Mode mode,
                                 Format* format) {
     SkASSERT(file);
     SkASSERT(bm);
 
     SkAutoTDelete<SkStreamRewindable> stream(SkStream::NewFromFile(file));
     if (stream.get()) {
         if (SkImageDecoder::DecodeStream(stream, bm, pref, mode, format)) {
-            bm->pixelRef()->setURI(file);
+            if (SkPixelRef* pr = bm->pixelRef()) {
+                pr->setURI(file);
+            }
             return true;
         }
     }
     return false;
 }
 
 bool SkImageDecoder::DecodeMemory(const void* buffer, size_t size, SkBitmap* bm, SkColorType pref,
                                   Mode mode, Format* format) {
     if (0 == size) {
         return false;
@@ skipping 27 matching lines @@
     return success;
 }
 
 bool SkImageDecoder::decodeYUV8Planes(SkStream* stream, SkISize componentSizes[3], void* planes[3],
                                       size_t rowBytes[3], SkYUVColorSpace* colorSpace) {
     // we reset this to false before calling onDecodeYUV8Planes
     fShouldCancelDecode = false;
 
     return this->onDecodeYUV8Planes(stream, componentSizes, planes, rowBytes, colorSpace);
 }