1 /*
2 * Copyright (C) 2006, 2007 Apple 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 *
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 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "GlyphPageTreeNode.h"
31
32 #include "SimpleFontData.h"
33 #include "WebCoreSystemInterface.h"
34 #include <ApplicationServices/ApplicationServices.h>
35
36 namespace WebCore {
37
fill(unsigned offset,unsigned length,UChar * buffer,unsigned bufferLength,const SimpleFontData * fontData)38 bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData)
39 {
40 bool haveGlyphs = false;
41
42 #ifndef BUILDING_ON_TIGER
43 Vector<CGGlyph, 512> glyphs(bufferLength);
44 wkGetGlyphsForCharacters(fontData->platformData().cgFont(), buffer, glyphs.data(), bufferLength);
45
46 for (unsigned i = 0; i < length; ++i) {
47 if (!glyphs[i])
48 setGlyphDataForIndex(offset + i, 0, 0);
49 else {
50 setGlyphDataForIndex(offset + i, glyphs[i], fontData);
51 haveGlyphs = true;
52 }
53 }
54 #else
55 // Use an array of long so we get good enough alignment.
56 long glyphVector[(GLYPH_VECTOR_SIZE + sizeof(long) - 1) / sizeof(long)];
57
58 OSStatus status = wkInitializeGlyphVector(GlyphPage::size, &glyphVector);
59 if (status != noErr)
60 // This should never happen, perhaps indicates a bad font! If it does the
61 // font substitution code will find an alternate font.
62 return false;
63
64 wkConvertCharToGlyphs(fontData->m_styleGroup, buffer, bufferLength, &glyphVector);
65
66 unsigned numGlyphs = wkGetGlyphVectorNumGlyphs(&glyphVector);
67 if (numGlyphs != length) {
68 // This should never happen, perhaps indicates a bad font?
69 // If it does happen, the font substitution code will find an alternate font.
70 wkClearGlyphVector(&glyphVector);
71 return false;
72 }
73
74 ATSLayoutRecord* glyphRecord = (ATSLayoutRecord*)wkGetGlyphVectorFirstRecord(glyphVector);
75 for (unsigned i = 0; i < length; i++) {
76 Glyph glyph = glyphRecord->glyphID;
77 if (!glyph)
78 setGlyphDataForIndex(offset + i, 0, 0);
79 else {
80 setGlyphDataForIndex(offset + i, glyph, fontData);
81 haveGlyphs = true;
82 }
83 glyphRecord = (ATSLayoutRecord *)((char *)glyphRecord + wkGetGlyphVectorRecordSize(glyphVector));
84 }
85 wkClearGlyphVector(&glyphVector);
86 #endif
87
88 return haveGlyphs;
89 }
90
91 } // namespace WebCore
92