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
|
#include "mupdf/fitz.h"
struct fz_separations_s
{
int refs;
int num_separations;
uint32_t disabled[(FZ_MAX_SEPARATIONS + 31) / 32];
uint32_t equiv_rgb[FZ_MAX_SEPARATIONS];
uint32_t equiv_cmyk[FZ_MAX_SEPARATIONS];
char *name[FZ_MAX_SEPARATIONS];
};
fz_separations *fz_new_separations(fz_context *ctx)
{
fz_separations *sep;
sep = fz_malloc_struct(ctx, fz_separations);
sep->refs = 1;
return sep;
}
fz_separations *fz_keep_separations(fz_context *ctx, fz_separations *sep)
{
int i;
if (!ctx || !sep)
return NULL;
fz_lock(ctx, FZ_LOCK_ALLOC);
i = sep->refs;
if (i > 0)
sep->refs++;
fz_unlock(ctx, FZ_LOCK_ALLOC);
return sep;
}
void fz_drop_separations(fz_context *ctx, fz_separations *sep)
{
int i;
if (!ctx || !sep)
return;
fz_lock(ctx, FZ_LOCK_ALLOC);
i = sep->refs;
if (i > 0)
sep->refs--;
fz_unlock(ctx, FZ_LOCK_ALLOC);
if (i == 1)
{
for (i = 0; i < sep->num_separations; i++)
fz_free(ctx, sep->name[i]);
fz_free(ctx, sep);
}
}
void fz_add_separation(fz_context *ctx, fz_separations *sep, uint32_t rgb, uint32_t cmyk, char *name)
{
int n;
if (!ctx || !sep)
return;
n = sep->num_separations;
if (n == FZ_MAX_SEPARATIONS)
fz_throw(ctx, FZ_ERROR_GENERIC, "Too many separations");
sep->name[n] = fz_strdup(ctx, name);
sep->equiv_rgb[n] = rgb;
sep->equiv_cmyk[n] = cmyk;
sep->num_separations++;
}
void fz_control_separation(fz_context *ctx, fz_separations *sep, int separation, int disable)
{
int bit;
if (!ctx || !sep)
return;
if (separation < 0 || separation >= sep->num_separations)
fz_throw(ctx, FZ_ERROR_GENERIC, "Can't disable non-existent separation");
bit = 1<<(separation & 31);
separation >>= 5;
if (disable)
{
/* If it's already disabled, great */
if (sep->disabled[separation] & bit)
return;
sep->disabled[separation] |= bit;
}
else
{
/* If it's already enabled, great */
if ((sep->disabled[separation] & bit) == 0)
return;
sep->disabled[separation] &= ~bit;
}
/* FIXME: Could only empty images from the store, or maybe only
* images that depend on separations. */
fz_empty_store(ctx);
}
int fz_separation_disabled(fz_context *ctx, fz_separations *sep, int separation)
{
int bit;
if (!ctx || !sep)
return 0;
if (separation < 0 || separation >= sep->num_separations)
fz_throw(ctx, FZ_ERROR_GENERIC, "Can't access non-existent separation");
bit = 1<<(separation & 31);
separation >>= 5;
return ((sep->disabled[separation] & bit) != 0);
}
int fz_separations_all_enabled(fz_context *ctx, fz_separations *sep)
{
int i;
if (!ctx || !sep)
return 1;
for (i = 0; i < (FZ_MAX_SEPARATIONS + 31) / 32; i++)
if (sep->disabled[i] != 0)
return 0;
return 1;
}
const char *fz_get_separation(fz_context *ctx, fz_separations *sep, int separation, uint32_t *rgb, uint32_t *cmyk)
{
if (!ctx || !sep)
return NULL;
if (separation < 0 || separation >= sep->num_separations)
fz_throw(ctx, FZ_ERROR_GENERIC, "Can't access non-existent separation");
if (rgb)
*rgb = sep->equiv_rgb[separation];
if (cmyk)
*cmyk = sep->equiv_cmyk[separation];
return sep->name[separation];
}
int fz_count_separations(fz_context *ctx, fz_separations *sep)
{
if (!ctx || !sep)
return 0;
return sep->num_separations;
}
|
