Added infrastructure for optimizing new CanvasArray types in WebGL...

include/v8.h

 // Copyright 2007-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1108 matching lines @@
 };
 
 
 enum PropertyAttribute {
   None       = 0,
   ReadOnly   = 1 << 0,
   DontEnum   = 1 << 1,
   DontDelete = 1 << 2
 };
 
+enum ExternalArrayType {
+  kExternalByteArray = 1,
+  kExternalUnsignedByteArray,
+  kExternalShortArray,
+  kExternalUnsignedShortArray,
+  kExternalIntArray,
+  kExternalUnsignedIntArray,
+  kExternalFloatArray
+};
+
 /**
  * A JavaScript object (ECMA-262, 4.3.3)
  */
 class V8EXPORT Object : public Value {
  public:
   bool Set(Handle<Value> key,
            Handle<Value> value,
            PropertyAttribute attribs = None);
 
   // Sets a local property on this object bypassing interceptors and
@@ skipping 132 matching lines @@
 
   /**
    * Set the backing store of the indexed properties to be managed by the
    * embedding layer. Access to the indexed properties will follow the rules
    * spelled out in CanvasPixelArray.
    * Note: The embedding program still owns the data and needs to ensure that
    *       the backing store is preserved while V8 has a reference.
    */
   void SetIndexedPropertiesToPixelData(uint8_t* data, int length);
 
+  /**
+   * Set the backing store of the indexed properties to be managed by the
+   * embedding layer. Access to the indexed properties will follow the rules
+   * spelled out for the CanvasArray subtypes in the WebGL specification.
+   * Note: The embedding program still owns the data and needs to ensure that
+   *       the backing store is preserved while V8 has a reference.
+   */
+  void SetIndexedPropertiesToExternalArrayData(void* data,
+                                               ExternalArrayType array_type,
+                                               int number_of_elements);
+
   static Local<Object> New();
   static inline Object* Cast(Value* obj);
  private:
   Object();
   static void CheckCast(Value* obj);
   Local<Value> CheckedGetInternalField(int index);
   void* SlowGetPointerFromInternalField(int index);
 
   /**
    * If quick access to the internal field is possible this method
@@ skipping 1882 matching lines @@
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef V8EXPORT_INLINE
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_