1 /*
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
3 * Copyright (C) 2010 Stephan Aßmus, <superstippi@gmx.de>
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "ImageDecoder.h"
29
30 #include <Bitmap.h>
31
32 namespace WebCore {
33
asNewNativeImage() const34 NativeImagePtr ImageFrame::asNewNativeImage() const
35 {
36 int bytesPerRow = width() * sizeof(PixelData);
37 OwnPtr<BBitmap> bitmap(new BBitmap(BRect(0, 0, width() - 1, height() - 1), 0, B_RGBA32, bytesPerRow));
38
39 const uint8* source = reinterpret_cast<const uint8*>(m_bytes);
40 uint8* destination = reinterpret_cast<uint8*>(bitmap->Bits());
41 int h = height();
42 int w = width();
43 for (int y = 0; y < h; y++) {
44 #if 0
45 // FIXME: Enable this conversion once Haiku has B_RGBA32P[remultiplied]...
46 memcpy(dst, source, bytesPerRow);
47 #else
48 const uint8* sourceHandle = source;
49 uint8* destinationHandle = destination;
50 for (int x = 0; x < w; x++) {
51 if (sourceHandle[3] == 255 || !sourceHandle[3]) {
52 destinationHandle[0] = sourceHandle[0];
53 destinationHandle[1] = sourceHandle[1];
54 destinationHandle[2] = sourceHandle[2];
55 destinationHandle[3] = sourceHandle[3];
56 } else {
57 destinationHandle[0] = static_cast<uint16>(sourceHandle[0]) * 255 / sourceHandle[3];
58 destinationHandle[1] = static_cast<uint16>(sourceHandle[1]) * 255 / sourceHandle[3];
59 destinationHandle[2] = static_cast<uint16>(sourceHandle[2]) * 255 / sourceHandle[3];
60 destinationHandle[3] = sourceHandle[3];
61 }
62 destinationHandle += 4;
63 sourceHandle += 4;
64 }
65 #endif
66 destination += bytesPerRow;
67 source += bytesPerRow;
68 }
69
70 return bitmap.release();
71 }
72
73 } // namespace WebCore
74
75