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
39 namespace WebCore {
40
fill(unsigned offset,unsigned length,UChar * buffer,unsigned bufferLength,const SimpleFontData * fontData)41 bool 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