1/*
2 * Copyright (C) 2006 George Staikos <staikos@kde.org>
3 * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
4 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
5 * Copyright (C) 2007 Ryan Leavengood <leavengood@gmail.com>
6 *
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
26 * 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 "GlyphPageTreeNode.h"
33
34#include "SimpleFontData.h"
35#include <wtf/Assertions.h>
36#include <wtf/unicode/Unicode.h>
37
38
39namespace WebCore {
40
41bool GlyphPage::fill(unsigned offset, unsigned length, UChar* characterBuffer, unsigned bufferLength, const SimpleFontData* fontData)
42{
43    bool isUtf16 = bufferLength != GlyphPage::size;
44    bool haveGlyphs = false;
45
46    for (unsigned i = 0; i < GlyphPage::size; i++) {
47        UChar32 character;
48
49        if (isUtf16) {
50            UChar lead = characterBuffer[i * 2];
51            UChar trail = characterBuffer[i * 2 + 1];
52            character = U16_GET_SUPPLEMENTARY(lead, trail);
53        } else
54            character = characterBuffer[i];
55
56        if (!character)
57            setGlyphDataForIndex(offset + i, 0, 0);
58        else {
59            haveGlyphs = true;
60            setGlyphDataForIndex(offset + i, character, fontData);
61        }
62    }
63
64    return haveGlyphs;
65}
66
67} // namespace WebCore
68
69