use allocator (if present) when we allocate our cache bitmap

include/core/SkColorTable.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkColorTable_DEFINED
@@ skipping 49 matching lines @@
     };
     // assumes ownership of colors (assumes it was allocated w/ malloc)
     SkColorTable(SkPMColor* colors, int count, AllocatedWithMalloc);
 
     SkPMColor*            fColors;
     SkOncePtr<uint16_t[]> f16BitCache;
     int                   fCount;
 
     void init(const SkPMColor* colors, int count);
 
+    friend class SkImageGenerator;
+    // Only call if no other thread or cache has seen this table.
+    void dangerous_overwriteColors(const SkPMColor newColors[], int count) {
+        if (count < 0 || count > fCount) {
+            sk_throw();
+        }
+        // assumes that f16BitCache nas NOT been initialized yet, so we don't try to update it
+        memcpy(fColors, newColors, count * sizeof(SkPMColor));
+        fCount = count; // update fCount, in case count is smaller
+    }
+
     typedef SkRefCnt INHERITED;
 };
 
 #endif