1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
/*
*
* (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
*
*/
#include "LETypes.h"
#include "LEGlyphFilter.h"
#include "OpenTypeTables.h"
#include "GlyphSubstitutionTables.h"
#include "SingleSubstitutionSubtables.h"
#include "GlyphIterator.h"
#include "LESwaps.h"
U_NAMESPACE_BEGIN
le_uint32 SingleSubstitutionSubtable::process(const LEReferenceTo<SingleSubstitutionSubtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const
{
if (LE_FAILURE(success)) {
return 0;
}
switch(SWAPW(subtableFormat))
{
case 0:
return 0;
case 1:
{
const LEReferenceTo<SingleSubstitutionFormat1Subtable> subtable(base, success, (const SingleSubstitutionFormat1Subtable *) this);
return subtable->process(subtable, glyphIterator, success, filter);
}
case 2:
{
const LEReferenceTo<SingleSubstitutionFormat2Subtable> subtable(base, success, (const SingleSubstitutionFormat2Subtable *) this);
return subtable->process(subtable, glyphIterator, success, filter);
}
default:
return 0;
}
}
le_uint32 SingleSubstitutionFormat1Subtable::process(const LEReferenceTo<SingleSubstitutionFormat1Subtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const
{
if (LE_FAILURE(success)) {
return 0;
}
LEGlyphID glyph = glyphIterator->getCurrGlyphID();
le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
if (LE_FAILURE(success)) {
return 0;
}
if (coverageIndex >= 0) {
TTGlyphID substitute = ((TTGlyphID) LE_GET_GLYPH(glyph)) + SWAPW(deltaGlyphID);
if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, substitute), success)) {
glyphIterator->setCurrGlyphID(substitute);
}
return 1;
}
return 0;
}
le_uint32 SingleSubstitutionFormat2Subtable::process(const LEReferenceTo<SingleSubstitutionFormat2Subtable> &base, GlyphIterator *glyphIterator, LEErrorCode &success, const LEGlyphFilter *filter) const
{
if (LE_FAILURE(success)) {
return 0;
}
LEGlyphID glyph = glyphIterator->getCurrGlyphID();
le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
if (LE_FAILURE(success)) {
return 0;
}
LEReferenceToArrayOf<TTGlyphID> substituteArrayRef(base, success, substituteArray, SWAPW(glyphCount));
if (coverageIndex >= 0 && LE_SUCCESS(success) && coverageIndex < substituteArrayRef.getCount()) {
TTGlyphID substitute = SWAPW(substituteArray[coverageIndex]);
if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, substitute), success)) {
glyphIterator->setCurrGlyphID(substitute);
}
return 1;
}
return 0;
}
U_NAMESPACE_END
|
