/src/ghostpdl/base/gsrop.c
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1 | | /* Copyright (C) 2001-2023 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 |
12 | | Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco, |
13 | | CA 94129, USA, for further information. |
14 | | */ |
15 | | |
16 | | |
17 | | /* RasterOp / transparency accessing for library */ |
18 | | #include "gx.h" |
19 | | #include "gserrors.h" |
20 | | #include "gzstate.h" |
21 | | #include "gsrop.h" |
22 | | |
23 | | /* setrasterop */ |
24 | | int |
25 | | gs_setrasterop(gs_gstate * pgs, gs_rop3_t rop) |
26 | 0 | { |
27 | 0 | if (pgs->in_cachedevice) |
28 | 0 | return_error(gs_error_undefined); |
29 | 0 | pgs->log_op = (rop & rop3_1) | (pgs->log_op & ~rop3_1); |
30 | 0 | return 0; |
31 | 0 | } |
32 | | |
33 | | /* currentrasterop */ |
34 | | gs_rop3_t |
35 | | gs_currentrasterop(const gs_gstate * pgs) |
36 | 0 | { |
37 | 0 | return lop_rop(pgs->log_op); |
38 | 0 | } |
39 | | |
40 | | /* setsourcetransparent */ |
41 | | int |
42 | | gs_setsourcetransparent(gs_gstate * pgs, bool transparent) |
43 | 0 | { |
44 | 0 | if (pgs->in_cachedevice) |
45 | 0 | return_error(gs_error_undefined); |
46 | 0 | pgs->log_op = |
47 | 0 | (transparent ? pgs->log_op | lop_S_transparent : |
48 | 0 | pgs->log_op & ~lop_S_transparent); |
49 | 0 | return 0; |
50 | 0 | } |
51 | | |
52 | | /* currentsourcetransparent */ |
53 | | bool |
54 | | gs_currentsourcetransparent(const gs_gstate * pgs) |
55 | 0 | { |
56 | 0 | return (pgs->log_op & lop_S_transparent) != 0; |
57 | 0 | } |
58 | | |
59 | | /* settexturetransparent */ |
60 | | int |
61 | | gs_settexturetransparent(gs_gstate * pgs, bool transparent) |
62 | 0 | { |
63 | 0 | if (pgs->in_cachedevice) |
64 | 0 | return_error(gs_error_undefined); |
65 | 0 | pgs->log_op = |
66 | 0 | (transparent ? pgs->log_op | lop_T_transparent : |
67 | 0 | pgs->log_op & ~lop_T_transparent); |
68 | 0 | return 0; |
69 | 0 | } |
70 | | |
71 | | /* currenttexturetransparent */ |
72 | | bool |
73 | | gs_currenttexturetransparent(const gs_gstate * pgs) |
74 | 0 | { |
75 | 0 | return (pgs->log_op & lop_T_transparent) != 0; |
76 | 0 | } |
77 | | |
78 | | /* Save/restore logical operation. (For internal use only.) */ |
79 | | int |
80 | | gs_set_logical_op(gs_gstate * pgs, gs_logical_operation_t lop) |
81 | 27.6k | { |
82 | 27.6k | pgs->log_op = lop; |
83 | 27.6k | return 0; |
84 | 27.6k | } |
85 | | gs_logical_operation_t |
86 | | gs_current_logical_op(const gs_gstate * pgs) |
87 | 0 | { |
88 | 0 | return pgs->log_op; |
89 | 0 | } |