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
172
173
174
175
176
177
|
/* Copyright (C) 2001-2020 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., 1305 Grant Avenue - Suite 200, Novato,
CA 94945, U.S.A., +1(415)492-9861, for further information.
*/
/* Level 1 extended color operators */
#include "ghost.h"
#include "oper.h"
#include "estack.h"
#include "ialloc.h"
#include "igstate.h"
#include "iutil.h"
#include "store.h"
#include "gxfixed.h"
#include "gxmatrix.h"
#include "gzstate.h"
#include "gxdevice.h"
#include "gxcmap.h"
#include "gscolor1.h"
#include "gxcspace.h"
#include "icolor.h"
#include "iimage.h"
/* - currentblackgeneration <proc> */
static int
zcurrentblackgeneration(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
push(1);
*op = istate->black_generation;
return 0;
}
/* - currentcolortransfer <redproc> <greenproc> <blueproc> <grayproc> */
static int
zcurrentcolortransfer(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
push(4);
op[-3] = istate->transfer_procs.red;
op[-2] = istate->transfer_procs.green;
op[-1] = istate->transfer_procs.blue;
*op = istate->transfer_procs.gray;
return 0;
}
/* - currentundercolorremoval <proc> */
static int
zcurrentundercolorremoval(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
push(1);
*op = istate->undercolor_removal;
return 0;
}
/* <proc> setblackgeneration - */
static int
zsetblackgeneration(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
int code;
check_proc(*op);
check_ostack(zcolor_remap_one_ostack - 1);
check_estack(1 + zcolor_remap_one_estack);
code = gs_setblackgeneration_remap(igs, gs_mapped_transfer, false);
if (code < 0)
return code;
istate->black_generation = *op;
pop(1);
push_op_estack(zcolor_remap_color);
return zcolor_remap_one(i_ctx_p, &istate->black_generation,
igs->black_generation, igs,
zcolor_remap_one_finish);
}
/* <redproc> <greenproc> <blueproc> <grayproc> setcolortransfer - */
static int
zsetcolortransfer(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
os_ptr ep = esp;
int code;
check_proc(op[-3]);
check_proc(op[-2]);
check_proc(op[-1]);
check_proc(*op);
check_ostack(zcolor_remap_one_ostack * 4 - 4);
check_estack(1 + zcolor_remap_one_estack * 4);
istate->transfer_procs.red = op[-3];
istate->transfer_procs.green = op[-2];
istate->transfer_procs.blue = op[-1];
istate->transfer_procs.gray = *op;
if ((code = gs_setcolortransfer_remap(igs,
gs_mapped_transfer, gs_mapped_transfer,
gs_mapped_transfer, gs_mapped_transfer,
false)) < 0
)
return code;
/* Use osp rather than op here, because zcolor_remap_one pushes. */
pop(4);
push_op_estack(zcolor_reset_transfer);
if ((code = zcolor_remap_one(i_ctx_p,
&istate->transfer_procs.red,
igs->set_transfer.red, igs,
zcolor_remap_one_finish)) < 0 ||
(code = zcolor_remap_one(i_ctx_p,
&istate->transfer_procs.green,
igs->set_transfer.green, igs,
zcolor_remap_one_finish)) < 0 ||
(code = zcolor_remap_one(i_ctx_p,
&istate->transfer_procs.blue,
igs->set_transfer.blue, igs,
zcolor_remap_one_finish)) < 0 ||
(code = zcolor_remap_one(i_ctx_p, &istate->transfer_procs.gray,
igs->set_transfer.gray, igs,
zcolor_remap_one_finish)) < 0
)
{
/* Return the exec stack to the state it was in before we started the setup
* for the transfer function evaluation.
*/
esp = ep;
return code;
}
return o_push_estack;
}
/* <proc> setundercolorremoval - */
static int
zsetundercolorremoval(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
int code;
check_proc(*op);
check_ostack(zcolor_remap_one_ostack - 1);
check_estack(1 + zcolor_remap_one_estack);
code = gs_setundercolorremoval_remap(igs, gs_mapped_transfer, false);
if (code < 0)
return code;
istate->undercolor_removal = *op;
pop(1);
push_op_estack(zcolor_remap_color);
return zcolor_remap_one(i_ctx_p, &istate->undercolor_removal,
igs->undercolor_removal, igs,
zcolor_remap_one_signed_finish);
}
/* ------ Initialization procedure ------ */
const op_def zcolor1_op_defs[] =
{
{"0currentblackgeneration", zcurrentblackgeneration},
{"0currentcolortransfer", zcurrentcolortransfer},
{"0currentundercolorremoval", zcurrentundercolorremoval},
{"1setblackgeneration", zsetblackgeneration},
{"4setcolortransfer", zsetcolortransfer},
{"1setundercolorremoval", zsetundercolorremoval},
op_def_end(0)
};
|