Coverage Report

Created: 2022-10-31 07:00

/src/ghostpdl/devices/vector/gdevpsfm.c
Line
Count
Source (jump to first uncovered line)
1
/* Copyright (C) 2001-2021 Artifex Software, Inc.
2
   All Rights Reserved.
3
4
   This software is provided AS-IS with no warranty, either express or
5
   implied.
6
7
   This software is distributed under license and may not be copied,
8
   modified or distributed except as expressly authorized under the terms
9
   of the license contained in the file LICENSE in this distribution.
10
11
   Refer to licensing information at http://www.artifex.com or contact
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   Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
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   CA 94945, U.S.A., +1(415)492-9861, for further information.
14
*/
15
16
17
/* Write a CMap */
18
#include "gx.h"
19
#include "gserrors.h"
20
#include "gxfcmap.h"
21
#include "stream.h"
22
#include "spprint.h"
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#include "spsdf.h"
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#include "gdevpsf.h"
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26
/* ---------------- Utilities ---------------- */
27
28
typedef struct cmap_operators_s {
29
    const char *beginchar;
30
    const char *endchar;
31
    const char *beginrange;
32
    const char *endrange;
33
} cmap_operators_t;
34
static const cmap_operators_t
35
  cmap_cid_operators = {
36
    "begincidchar\n", "endcidchar\n",
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    "begincidrange\n", "endcidrange\n"
38
  },
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  cmap_notdef_operators = {
40
    "beginnotdefchar\n", "endnotdefchar\n",
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    "beginnotdefrange\n", "endnotdefrange\n"
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  };
43
44
/* Write a gs_string with a prefix. */
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static void
46
pput_string_entry(stream *s, const char *prefix, const gs_const_string *pstr)
47
28
{
48
28
    stream_puts(s, prefix);
49
28
    stream_write(s, pstr->data, pstr->size);
50
28
}
51
52
/* Write a hex string. */
53
static void
54
pput_hex(stream *s, const byte *pcid, int size)
55
25.0k
{
56
25.0k
    int i;
57
25.0k
    static const char *const hex_digits = "0123456789abcdef";
58
59
62.1k
    for (i = 0; i < size; ++i) {
60
37.1k
        stream_putc(s, hex_digits[pcid[i] >> 4]);
61
37.1k
        stream_putc(s, hex_digits[pcid[i] & 0xf]);
62
37.1k
    }
63
25.0k
}
64
65
/* Write a list of code space ranges. */
66
static void
67
cmap_put_ranges(stream *s, const gx_code_space_range_t *pcsr, int count)
68
451
{
69
451
    int i;
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71
451
    pprintd1(s, "%d begincodespacerange\n", count);
72
906
    for (i = 0; i < count; ++i, ++pcsr) {
73
455
        stream_puts(s, "<");
74
455
        pput_hex(s, pcsr->first, pcsr->size);
75
455
        stream_puts(s, "><");
76
455
        pput_hex(s, pcsr->last, pcsr->size);
77
455
        stream_puts(s, ">\n");
78
455
    }
79
451
    stream_puts(s, "endcodespacerange\n");
80
451
}
81
82
/* Write one CIDSystemInfo dictionary. */
83
static void
84
cmap_put_system_info(stream *s, const gs_cid_system_info_t *pcidsi)
85
7
{
86
7
    if (cid_system_info_is_null(pcidsi)) {
87
2
        stream_puts(s, " null ");
88
5
    } else {
89
5
        stream_puts(s, " 3 dict dup begin\n");
90
5
        stream_puts(s, "/Registry ");
91
5
        s_write_ps_string(s, pcidsi->Registry.data, pcidsi->Registry.size, 0);
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5
        stream_puts(s, " def\n/Ordering ");
93
5
        s_write_ps_string(s, pcidsi->Ordering.data, pcidsi->Ordering.size, 0);
94
5
        pprintd1(s, " def\n/Supplement %d def\nend ", pcidsi->Supplement);
95
5
    }
96
7
}
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/* Write one code map. */
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static int
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cmap_put_code_map(gs_memory_t *mem,
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                  stream *s, int which, const gs_cmap_t *pcmap,
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                  const cmap_operators_t *pcmo,
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                  psf_put_name_chars_proc_t put_name_chars,
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                  int font_index_only)
105
902
{
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    /* For simplicity, produce one entry for each lookup range. */
107
902
    gs_cmap_lookups_enum_t lenum;
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902
    int font_index = (pcmap->num_fonts <= 1 ? 0 : -1);
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902
    int code;
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111
902
    for (gs_cmap_lookups_enum_init(pcmap, which, &lenum);
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1.44k
         (code = gs_cmap_enum_next_lookup(mem, &lenum)) == 0; ) {
113
538
        gs_cmap_lookups_enum_t counter;
114
538
        int num_entries = 0;
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538
        int gi;
116
117
538
        if (font_index_only >= 0 && lenum.entry.font_index != font_index_only)
118
0
            continue;
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538
        if (font_index_only < 0 && lenum.entry.font_index != font_index) {
120
0
            pprintd1(s, "%d usefont\n", lenum.entry.font_index);
121
0
            font_index = lenum.entry.font_index;
122
0
        }
123
        /* Count the number of entries in this lookup range. */
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538
        counter = lenum;
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8.62k
        while (gs_cmap_enum_next_entry(&counter) == 0)
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8.08k
            ++num_entries;
127
1.07k
        for (gi = 0; gi < num_entries; gi += 100) {
128
538
            int i = gi, ni = min(i + 100, num_entries);
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538
            const char *end;
130
131
538
            pprintd1(s, "%d ", ni - i);
132
538
            if (lenum.entry.key_is_range) {
133
482
                if (lenum.entry.value_type == CODE_VALUE_CID || lenum.entry.value_type == CODE_VALUE_NOTDEF) {
134
38
                    stream_puts(s, pcmo->beginrange);
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38
                    end = pcmo->endrange;
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444
                } else { /* must be def, not notdef */
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444
                    stream_puts(s, "beginbfrange\n");
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444
                    end = "endbfrange\n";
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444
                }
140
482
            } else {
141
56
                if (lenum.entry.value_type == CODE_VALUE_CID || lenum.entry.value_type == CODE_VALUE_NOTDEF) {
142
56
                    stream_puts(s, pcmo->beginchar);
143
56
                    end = pcmo->endchar;
144
56
                } else { /* must be def, not notdef */
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0
                    stream_puts(s, "beginbfchar\n");
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0
                    end = "endbfchar\n";
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0
                }
148
56
            }
149
8.62k
            for (; i < ni; ++i) {
150
8.08k
                int j;
151
8.08k
                long value;
152
8.08k
                int value_size;
153
154
8.08k
                DISCARD(gs_cmap_enum_next_entry(&lenum)); /* can't fail */
155
8.08k
                value_size = lenum.entry.value.size;
156
24.2k
                for (j = 0; j <= lenum.entry.key_is_range; ++j) {
157
16.1k
                    stream_putc(s, '<');
158
16.1k
                    pput_hex(s, lenum.entry.key[j], lenum.entry.key_size);
159
16.1k
                    stream_putc(s, '>');
160
16.1k
                }
161
24.3k
                for (j = 0, value = 0; j < value_size; ++j)
162
16.2k
                    value = (value << 8) + lenum.entry.value.data[j];
163
8.08k
                switch (lenum.entry.value_type) {
164
94
                case CODE_VALUE_CID:
165
94
                case CODE_VALUE_NOTDEF:
166
94
                    pprintld1(s, "%ld", value);
167
94
                    break;
168
7.99k
                case CODE_VALUE_CHARS:
169
7.99k
                    stream_putc(s, '<');
170
7.99k
                    pput_hex(s, lenum.entry.value.data, value_size);
171
7.99k
                    stream_putc(s, '>');
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7.99k
                    break;
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0
                case CODE_VALUE_GLYPH: {
174
0
                    gs_const_string str;
175
0
                    int code = pcmap->glyph_name(mem, (gs_glyph)value, &str,
176
0
                                                 pcmap->glyph_name_data);
177
178
0
                    if (code < 0) {
179
0
                        if (lenum.entry.value.data && lenum.entry.value.data != lenum.temp_value) {
180
0
                            gs_free_object(mem, (void *)lenum.entry.value.data, "working ToUnicode buffer");
181
0
                        }
182
0
                        return code;
183
0
                    }
184
0
                    stream_putc(s, '/');
185
0
                    code = put_name_chars(s, str.data, str.size);
186
0
                    if (code < 0) {
187
0
                        if (lenum.entry.value.data && lenum.entry.value.data != lenum.temp_value) {
188
0
                            gs_free_object(mem, (void *)lenum.entry.value.data, "working ToUnicode buffer");
189
0
                        }
190
0
                        return code;
191
0
                    }
192
0
                }
193
0
                    break;
194
0
                default:  /* not possible */
195
0
                    if (lenum.entry.value.data && lenum.entry.value.data != lenum.temp_value) {
196
0
                        gs_free_object(mem, (void *)lenum.entry.value.data, "working ToUnicode buffer");
197
0
                    }
198
0
                    return_error(gs_error_unregistered);
199
8.08k
                }
200
8.08k
                stream_putc(s, '\n');
201
8.08k
            }
202
538
            stream_puts(s, end);
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538
        }
204
538
    }
205
902
    if (lenum.entry.value.data && lenum.entry.value.data != lenum.temp_value) {
206
444
        gs_free_object(mem, (void *)lenum.entry.value.data, "working ToUnicode buffer");
207
444
    }
208
902
    return code;
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902
}
210
211
/* ---------------- Main program ---------------- */
212
213
/* Write a CMap in its standard (source) format. */
214
int
215
psf_write_cmap(gs_memory_t *mem,
216
               stream *s, const gs_cmap_t *pcmap,
217
               psf_put_name_chars_proc_t put_name_chars,
218
               const gs_const_string *alt_cmap_name, int font_index_only)
219
451
{
220
451
    const gs_const_string *const cmap_name =
221
451
        (alt_cmap_name ? alt_cmap_name : &pcmap->CMapName);
222
451
    const gs_cid_system_info_t *const pcidsi = pcmap->CIDSystemInfo;
223
224
451
    switch (pcmap->CMapType) {
225
451
    case 0: case 1: case 2:
226
451
        break;
227
0
    default:
228
0
        return_error(gs_error_rangecheck);
229
451
    }
230
231
    /* Write the header. */
232
233
451
    if (!pcmap->ToUnicode) {
234
7
        stream_puts(s, "%!PS-Adobe-3.0 Resource-CMap\n");
235
7
        stream_puts(s, "%%DocumentNeededResources: ProcSet (CIDInit)\n");
236
7
        stream_puts(s, "%%IncludeResource: ProcSet (CIDInit)\n");
237
7
        pput_string_entry(s, "%%BeginResource: CMap (", cmap_name);
238
7
        pput_string_entry(s, ")\n%%Title: (", cmap_name);
239
7
        pput_string_entry(s, " ", &pcidsi->Registry);
240
7
        pput_string_entry(s, " ", &pcidsi->Ordering);
241
7
        pprintd1(s, " %d)\n", pcidsi->Supplement);
242
7
        pprintg1(s, "%%%%Version: %g\n", pcmap->CMapVersion);
243
7
    }
244
451
    stream_puts(s, "/CIDInit /ProcSet findresource begin\n");
245
451
    stream_puts(s, "12 dict begin\nbegincmap\n");
246
247
    /* Write the fixed entries. */
248
249
451
    pprintd1(s, "/CMapType %d def\n", pcmap->CMapType);
250
451
    stream_puts(s, "/CMapName/");
251
451
    put_name_chars(s, cmap_name->data, cmap_name->size);
252
451
    stream_puts(s, " def\n");
253
451
    if (!pcmap->ToUnicode) {
254
7
        pprintg1(s, "/CMapVersion %g def\n", pcmap->CMapVersion);
255
7
        stream_puts(s, "/CIDSystemInfo");
256
7
        if (font_index_only >= 0 && font_index_only < pcmap->num_fonts) {
257
7
            cmap_put_system_info(s, pcidsi + font_index_only);
258
7
        } else if (pcmap->num_fonts == 1) {
259
0
            cmap_put_system_info(s, pcidsi);
260
0
        } else {
261
0
            int i;
262
263
0
            pprintd1(s, " %d array\n", pcmap->num_fonts);
264
0
            for (i = 0; i < pcmap->num_fonts; ++i) {
265
0
                pprintd1(s, "dup %d", i);
266
0
                cmap_put_system_info(s, pcidsi + i);
267
0
                stream_puts(s, "put\n");
268
0
            }
269
0
        }
270
7
        stream_puts(s, " def\n");
271
7
        if (uid_is_XUID(&pcmap->uid)) {
272
4
            uint i, n = uid_XUID_size(&pcmap->uid);
273
4
            const long *values = uid_XUID_values(&pcmap->uid);
274
275
4
            stream_puts(s, "/XUID [");
276
18
            for (i = 0; i < n; ++i)
277
14
                pprintld1(s, " %ld", values[i]);
278
4
            stream_puts(s, "] def\n");
279
4
        }
280
7
        pprintld1(s, "/UIDOffset %ld def\n", pcmap->UIDOffset);
281
7
        pprintd1(s, "/WMode %d def\n", pcmap->WMode);
282
7
    }
283
284
    /* Write the code space ranges. */
285
286
451
    {
287
451
        gs_cmap_ranges_enum_t renum;
288
455
#define MAX_RANGES 100
289
451
        gx_code_space_range_t ranges[MAX_RANGES];
290
451
        int code, count = 0;
291
292
451
        for (gs_cmap_ranges_enum_init(pcmap, &renum);
293
906
             (code = gs_cmap_enum_next_range(&renum)) == 0; ) {
294
455
            if (count == MAX_RANGES) {
295
0
                cmap_put_ranges(s, ranges, count);
296
0
                count = 0;
297
0
            }
298
455
            ranges[count++] = renum.range;
299
455
        }
300
451
        if (code < 0)
301
0
            return code;
302
451
        if (count)
303
451
            cmap_put_ranges(s, ranges, count);
304
451
#undef MAX_RANGES
305
451
    }
306
307
    /* Write the code and notdef data. */
308
309
0
    {
310
451
        int code;
311
312
451
        code = cmap_put_code_map(mem, s, 1, pcmap, &cmap_notdef_operators,
313
451
                                 put_name_chars, font_index_only);
314
451
        if (code < 0)
315
0
            return code;
316
451
        code = cmap_put_code_map(mem, s, 0, pcmap, &cmap_cid_operators,
317
451
                                 put_name_chars, font_index_only);
318
451
        if (code < 0)
319
0
            return code;
320
451
    }
321
322
    /* Write the trailer. */
323
324
451
    stream_puts(s, "endcmap\n");
325
451
    stream_puts(s, "CMapName currentdict /CMap defineresource pop\nend end\n");
326
451
    if (!pcmap->ToUnicode) {
327
7
        stream_puts(s, "%%EndResource\n");
328
7
        stream_puts(s, "%%EOF\n");
329
7
    }
330
331
451
    return 0;
332
451
}