lockPixels before calling getColorTable.

include/core/SkBitmap.h

 
 /*
  * 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.
  */
 
 
 #ifndef SkBitmap_DEFINED
@@ skipping 353 matching lines @@
         return this->getPixels() != NULL &&
                ((this->config() != kIndex8_Config &&
                  this->config() != kRLE_Index8_Config) ||
                        fColorTable != NULL);
     }
 
     /** Returns the pixelRef's texture, or NULL
      */
     SkGpuTexture* getTexture() const;
 
-    /** Return the bitmap's colortable (if any). Does not affect the colortable's
+    /** Return the bitmap's colortable, if it uses one (i.e. fConfig is
+        kIndex8_Config or kRLE_Index8_Config) and the pixels are locked.
+        Otherwise returns NULL. Does not affect the colortable's
         reference count.
     */
     SkColorTable* getColorTable() const { return fColorTable; }
 
     /** Returns a non-zero, unique value corresponding to the pixels in our
         pixelref. Each time the pixels are changed (and notifyPixelsChanged
         is called), a different generation ID will be returned. Finally, if
         their is no pixelRef then zero is returned.
     */
     uint32_t getGenerationID() const;
@@ skipping 412 matching lines @@
 
 // returns the address of the byte that contains the x coordinate
 inline uint8_t* SkBitmap::getAddr1(int x, int y) const {
     SkASSERT(fPixels);
     SkASSERT(fConfig == kA1_Config);
     SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
     return (uint8_t*)fPixels + y * fRowBytes + (x >> 3);
 }
 
 #endif