xref: /plan9/sys/src/cmd/gs/src/gsequivc.h (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
1 /* Copyright (C) 2004 Artifex Software Inc., artofcode LLC.  All rights reserved.
2 
3   This software is provided AS-IS with no warranty, either express or
4   implied.
5 
6   This software is distributed under license and may not be copied,
7   modified or distributed except as expressly authorized under the terms
8   of the license contained in the file LICENSE in this distribution.
9 
10   For more information about licensing, please refer to
11   http://www.ghostscript.com/licensing/. For information on
12   commercial licensing, go to http://www.artifex.com/licensing/ or
13   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
14   San Rafael, CA  94903, U.S.A., +1(415)492-9861.
15 */
16 
17 /*$Id: gsequivc.h,v 1.2 2004/06/24 05:03:36 dan Exp $ */
18 /* Header for routines for determining equivalent color for spot colors */
19 
20 /* For more information, see comment at the start of src/gsequivc.c */
21 
22 #ifndef gsequivc_INCLUDED
23 # define gsequivc_INCLUDED
24 
25 /*
26  * Structure for holding a CMYK color.
27  */
28 typedef struct cmyk_color_s {
29     bool color_info_valid;
30     frac c;
31     frac m;
32     frac y;
33     frac k;
34 } cmyk_color;
35 
36 /*
37  * Structure for holding parameters for collecting the equivalent CMYK
38  * for a spot colorant.
39  */
40 typedef struct equivalent_cmyk_color_params_s {
41     bool all_color_info_valid;
42     cmyk_color color[GX_DEVICE_MAX_SEPARATIONS];
43 } equivalent_cmyk_color_params;
44 
45 /* If possible, update the equivalent CMYK color for a spot color */
46 void update_spot_equivalent_cmyk_colors(gx_device * pdev,
47 		const gs_state * pgs, gs_devn_params * pdevn_params,
48 		equivalent_cmyk_color_params * pparams);
49 
50 #endif		/* define gsequivc_INCLUDED */
51