1/*
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
4 * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 *     its contributors may be used to endorse or promote products derived
17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * 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 <cairo-ft.h>
36#include <cairo.h>
37#include <fontconfig/fcfreetype.h>
38
39namespace WebCore {
40
41bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData)
42{
43    // The bufferLength will be greater than the glyph page size if the buffer has Unicode supplementary characters.
44    // We won't support this for now.
45    if (bufferLength > GlyphPage::size)
46        return false;
47
48    FT_Face face = cairo_ft_scaled_font_lock_face(fontData->platformData().scaledFont());
49    if (!face)
50        return false;
51
52    bool haveGlyphs = false;
53    for (unsigned i = 0; i < length; i++) {
54        Glyph glyph = FcFreeTypeCharIndex(face, buffer[i]);
55        if (!glyph)
56            setGlyphDataForIndex(offset + i, 0, 0);
57        else {
58            setGlyphDataForIndex(offset + i, glyph, fontData);
59            haveGlyphs = true;
60        }
61    }
62
63    cairo_ft_scaled_font_unlock_face(fontData->platformData().scaledFont());
64
65    return haveGlyphs;
66}
67
68}
69