- A prototype which allows to expose CanvasPixelArray functionality...

src/api.cc

 // Copyright 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 2176 matching lines @@
   i::Handle<i::Object> hidden_props(i::GetHiddenProperties(self, false));
   if (hidden_props->IsUndefined()) {
     return true;
   }
   i::Handle<i::JSObject> js_obj(i::JSObject::cast(*hidden_props));
   i::Handle<i::String> key_obj = Utils::OpenHandle(*key);
   return i::DeleteProperty(js_obj, key_obj)->IsTrue();
 }
 
 
+void v8::Object::SetIndexedPropertiesToPixelData(uint8_t* data, int length) {
+  ON_BAILOUT("v8::SetElementsToPixelData()", return);
+  ENTER_V8;
+  if (!ApiCheck(i::Smi::IsValid(length),
+                "v8::Object::SetIndexedPropertiesToPixelData()",
+                "length exceeds max acceptable value")) {
+    return;
+  }
+  i::Handle<i::JSObject> self = Utils::OpenHandle(this);
+  if (!ApiCheck(!self->IsJSArray(),
+                "v8::Object::SetIndexedPropertiesToPixelData()",
+                "JSArray is not supported")) {
+    return;
+  }
+  i::Handle<i::PixelArray> pixels = i::Factory::NewPixelArray(length, data);
+  self->set_elements(*pixels);
+}
+
+
 Local<v8::Object> Function::NewInstance() const {
   return NewInstance(0, NULL);
 }
 
 
 Local<v8::Object> Function::NewInstance(int argc,
                                         v8::Handle<v8::Value> argv[]) const {
   ON_BAILOUT("v8::Function::NewInstance()", return Local<v8::Object>());
   LOG_API("Function::NewInstance");
   ENTER_V8;
@@ skipping 843 matching lines @@
   }
 }
 
 
 Local<Object> Array::CloneElementAt(uint32_t index) {
   ON_BAILOUT("v8::Array::CloneElementAt()", return Local<Object>());
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
   if (!self->HasFastElements()) {
     return Local<Object>();
   }
-  i::FixedArray* elms = self->elements();
+  i::FixedArray* elms = i::FixedArray::cast(self->elements());
   i::Object* paragon = elms->get(index);
   if (!paragon->IsJSObject()) {
     return Local<Object>();
   }
   i::Handle<i::JSObject> paragon_handle(i::JSObject::cast(paragon));
   EXCEPTION_PREAMBLE();
   i::Handle<i::JSObject> result = i::Copy(paragon_handle);
   has_pending_exception = result.is_null();
   EXCEPTION_BAILOUT_CHECK(Local<Object>());
   return Utils::ToLocal(result);
@@ skipping 493 matching lines @@
       reinterpret_cast<HandleScopeImplementer*>(storage);
   List<void**>* blocks_of_archived_thread = thread_local->Blocks();
   v8::ImplementationUtilities::HandleScopeData* handle_data_of_archived_thread =
       &thread_local->handle_scope_data_;
   Iterate(v, blocks_of_archived_thread, handle_data_of_archived_thread);
 
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal