1 /*
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "JSImageData.h"
28
29 #include "ImageData.h"
30 #include "PlatformString.h"
31
32 #include <runtime/JSByteArray.h>
33 #include <wtf/StdLibExtras.h>
34
35 using namespace JSC;
36
37 namespace WebCore {
38
toJS(ExecState * exec,JSDOMGlobalObject * globalObject,ImageData * imageData)39 JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, ImageData* imageData)
40 {
41 if (!imageData)
42 return jsNull();
43
44 DOMObject* wrapper = getCachedDOMObjectWrapper(exec->globalData(), imageData);
45 if (wrapper)
46 return wrapper;
47
48 wrapper = CREATE_DOM_OBJECT_WRAPPER(exec, globalObject, ImageData, imageData);
49 Identifier dataName(exec, "data");
50 DEFINE_STATIC_LOCAL(RefPtr<Structure>, cpaStructure, (JSByteArray::createStructure(jsNull())));
51 static const ClassInfo cpaClassInfo = { "CanvasPixelArray", 0, 0, 0 };
52 wrapper->putDirect(dataName, new (exec) JSByteArray(exec, cpaStructure, imageData->data()->data(), &cpaClassInfo), DontDelete | ReadOnly);
53 exec->heap()->reportExtraMemoryCost(imageData->data()->length());
54
55 return wrapper;
56 }
57
58 }
59