1/*
2 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2010 Stephan AÃmus, <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
32namespace WebCore {
33
34NativeImagePtr 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