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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/* Copyright (C) 2001-2023 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
implied.
This software is distributed under license and may not be copied,
modified or distributed except as expressly authorized under the terms
of the license contained in the file LICENSE in this distribution.
Refer to licensing information at http://www.artifex.com or contact
Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
CA 94129, USA, for further information.
*/
/* Level 2 character operators */
#include "ghost.h"
#include "oper.h"
#include "gsmatrix.h" /* for gxfont.h */
#include "gstext.h"
#include "gxfixed.h" /* for gxfont.h */
#include "gxfont.h"
#include "gxtext.h"
#include "ialloc.h"
#include "ichar.h"
#include "igstate.h"
#include "iname.h"
#include "ibnum.h"
#include "memory_.h"
/* Common setup for glyphshow and .glyphwidth. */
static int
glyph_show_setup(i_ctx_t *i_ctx_p, gs_glyph *pglyph)
{
os_ptr op = osp;
switch (gs_currentfont(igs)->FontType) {
case ft_CID_encrypted:
case ft_CID_user_defined:
case ft_CID_TrueType:
case ft_CID_bitmap:
check_int_leu(*op, GS_MAX_GLYPH - GS_MIN_CID_GLYPH);
*pglyph = (gs_glyph) op->value.intval + GS_MIN_CID_GLYPH;
break;
default:
check_type(*op, t_name);
*pglyph = name_index(imemory, op);
}
return op_show_enum_setup(i_ctx_p);
}
/* <charname> glyphshow - */
static int
zglyphshow(i_ctx_t *i_ctx_p)
{
gs_glyph glyph = GS_NO_GLYPH;
gs_text_enum_t *penum;
int code;
if ((code = glyph_show_setup(i_ctx_p, &glyph)) != 0)
return code;
if ((code = gs_glyphshow_begin(igs, glyph, imemory_local, &penum)) < 0)
return code;
*(op_proc_t *)&penum->enum_client_data = zglyphshow;
if ((code = op_show_finish_setup(i_ctx_p, penum, 1, NULL)) < 0) {
ifree_object(penum, "zglyphshow");
return code;
}
return op_show_continue_pop(i_ctx_p, 1);
}
/* <string> <numarray|numstring> xshow - */
/* <string> <numarray|numstring> yshow - */
/* <string> <numarray|numstring> xyshow - */
static int
moveshow(i_ctx_t *i_ctx_p, bool have_x, bool have_y)
{
os_ptr op = osp;
gs_text_enum_t *penum = NULL;
int code = op_show_setup(i_ctx_p, op - 1);
int format;
uint i, size, widths_needed;
float *values;
bool CPSI_mode = gs_currentcpsimode(imemory);
if (code != 0)
return code;
format = num_array_format(op);
if (format < 0)
return format;
size = num_array_size(op, format);
values = (float *)ialloc_byte_array(size, sizeof(float), "moveshow");
if (values == 0)
return_error(gs_error_VMerror);
if (CPSI_mode)
memset(values, 0, size * sizeof(values[0])); /* Safety. */
if ((code = gs_xyshow_begin(igs, op[-1].value.bytes, r_size(op - 1),
(have_x ? values : (float *)0),
(have_y ? values : (float *)0),
size, imemory_local, &penum)) < 0) {
ifree_object(values, "moveshow");
if (penum) /* if there was an error, the text_enum may not have been allocated */
penum->text.x_widths = penum->text.y_widths = NULL;
return code;
}
if (CPSI_mode) {
/* CET 13-29.PS page 2 defines a longer width array
then the text requires, and CPSI silently ignores extra elements.
So we need to compute exact number of characters
to know how many elements to load and type check. */
code = gs_text_count_chars(igs, gs_get_text_params(penum), imemory);
if (code < 0)
return code;
widths_needed = code;
if (have_x && have_y)
widths_needed <<= 1;
} else
widths_needed = size;
for (i = 0; i < widths_needed; ++i) {
ref value;
switch (code = num_array_get(imemory, op, format, i, &value)) {
case t_integer:
values[i] = (float)value.value.intval; break;
case t_real:
values[i] = value.value.realval; break;
case t_null:
code = gs_note_error(gs_error_rangecheck);
/* falls through */
default:
ifree_object(values, "moveshow");
penum->text.x_widths = penum->text.y_widths = NULL;
return code;
}
}
if ((code = op_show_finish_setup(i_ctx_p, penum, 2, NULL)) < 0) {
ifree_object(values, "moveshow");
penum->text.x_widths = penum->text.y_widths = NULL;
return code;
}
pop(2);
return op_show_continue(i_ctx_p);
}
static int
zxshow(i_ctx_t *i_ctx_p)
{
return moveshow(i_ctx_p, true, false);
}
static int
zyshow(i_ctx_t *i_ctx_p)
{
return moveshow(i_ctx_p, false, true);
}
static int
zxyshow(i_ctx_t *i_ctx_p)
{
return moveshow(i_ctx_p, true, true);
}
/* ------ Initialization procedure ------ */
const op_def zcharx_op_defs[] =
{
op_def_begin_level2(),
{"1glyphshow", zglyphshow},
{"2xshow", zxshow},
{"2xyshow", zxyshow},
{"2yshow", zyshow},
op_def_end(0)
};
|
