1/*
2 * Copyright (C) 2006 Apple Computer, 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 COMPUTER, 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 COMPUTER, 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 "ImageDecoder.h"
28
29// FIXME: Are all these needed?
30#include <wx/defs.h>
31#include <wx/bitmap.h>
32#if USE(WXGC)
33#include <wx/graphics.h>
34#endif
35#include <wx/image.h>
36#include <wx/rawbmp.h>
37
38namespace WebCore {
39
40NativeImagePtr ImageFrame::asNewNativeImage() const
41{
42    wxBitmap* bmp = new wxBitmap(width(), height(), 32);
43
44    {
45        typedef wxPixelData<wxBitmap, wxAlphaPixelFormat> WxPixelData;
46        WxPixelData data(*bmp);
47
48        // NB: It appears that the data is in BGRA format instead of RGBA format.
49        // This code works properly on both ppc and intel, meaning the issue is
50        // likely not an issue of byte order getting mixed up on different archs.
51        const unsigned char* bytes = (const unsigned char*)m_bytes;
52        int rowCounter = 0;
53        long pixelCounter = 0;
54        WxPixelData::Iterator p(data);
55        WxPixelData::Iterator rowStart = p;
56        for (size_t i = 0; i < m_size.width() * m_size.height() * sizeof(PixelData); i += sizeof(PixelData)) {
57                p.Red() = bytes[i + 2];
58                p.Green() = bytes[i + 1];
59                p.Blue() = bytes[i + 0];
60                p.Alpha() = bytes[i + 3];
61
62            p++;
63
64            pixelCounter++;
65            if ((pixelCounter % width()) == 0) {
66                rowCounter++;
67                p = rowStart;
68                p.MoveTo(data, 0, rowCounter);
69            }
70        }
71#if !wxCHECK_VERSION(2,9,0)
72        bmp->UseAlpha();
73#endif
74    } // ensure that WxPixelData is destroyed as it unlocks the bitmap data in
75      // its dtor and we can't access it (notably in CreateBitmap() below)
76      // before this is done
77
78    ASSERT(bmp->IsOk());
79
80#if USE(WXGC)
81    wxGraphicsBitmap* bitmap = new wxGraphicsBitmap(wxGraphicsRenderer::GetDefaultRenderer()->CreateBitmap(*bmp));
82    delete bmp;
83    return bitmap;
84#else
85    return bmp;
86#endif
87}
88
89} // namespace WebCore
90