1 /*
2 * Copyright (C) 2009 Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "CanvasPixelArray.h"
33
34 #include "V8Binding.h"
35 #include "V8CustomBinding.h"
36 #include "V8Proxy.h"
37
38 namespace WebCore {
39
40 // Get the specified value from the pixel buffer and return it wrapped as a JavaScript Number object to V8. Accesses outside the valid pixel buffer range return "undefined".
INDEXED_PROPERTY_GETTER(CanvasPixelArray)41 INDEXED_PROPERTY_GETTER(CanvasPixelArray)
42 {
43 INC_STATS("DOM.CanvasPixelArray.IndexedPropertyGetter");
44 CanvasPixelArray* pixelBuffer = V8DOMWrapper::convertToNativeObject<CanvasPixelArray>(V8ClassIndex::CANVASPIXELARRAY, info.Holder());
45
46 if ((index < 0) || (index >= pixelBuffer->length()))
47 return v8::Undefined();
48 unsigned char result;
49 if (!pixelBuffer->get(index, result))
50 return v8::Undefined();
51 return v8::Number::New(result);
52 }
53
54 // Set the specified value in the pixel buffer. Accesses outside the valid pixel buffer range are silently ignored.
INDEXED_PROPERTY_SETTER(CanvasPixelArray)55 INDEXED_PROPERTY_SETTER(CanvasPixelArray)
56 {
57 INC_STATS("DOM.CanvasPixelArray.IndexedPropertySetter");
58 CanvasPixelArray* pixelBuffer = V8DOMWrapper::convertToNativeObject<CanvasPixelArray>(V8ClassIndex::CANVASPIXELARRAY, info.Holder());
59
60 if ((index >= 0) && (index < pixelBuffer->length()))
61 pixelBuffer->set(index, value->NumberValue());
62 return value;
63 }
64
65 } // namespace WebCore
66