xref: /plan9/sys/src/cmd/gs/src/gdevmgr.h (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
1 /* Copyright (C) 1992, 1993, 1994 Aladdin Enterprises.  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: gdevmgr.h,v 1.4 2002/02/21 22:24:51 giles Exp $*/
18 /* Common header file for MGR devices */
19 
20 #ifndef gdevmgr_INCLUDED
21 #  define gdevmgr_INCLUDED
22 
23 #define MGR_RESERVEDCOLORS 16
24 
25 /* Color mapping routines for 8-bit color (with a fixed palette). */
26 dev_proc_map_rgb_color(mgr_8bit_map_rgb_color);
27 dev_proc_map_color_rgb(mgr_8bit_map_color_rgb);
28 
29 
30 /* extract from dump.h */
31 
32 /*
33  * format for saved bitmaps
34  */
35 
36 #define B_PUTHDR8(hdr, w, h, d) (			\
37 	(hdr)->magic[0]  = 'y', (hdr)->magic[1] = 'z',  \
38 	(hdr)->h_wide    = (((w) >> 6) & 0x3f) + ' ',	\
39 	(hdr)->l_wide    = ((w) & 0x3f) + ' ',		\
40 	(hdr)->h_high    = (((h) >> 6) & 0x3f) + ' ',	\
41 	(hdr)->l_high    = ((h) & 0x3f) + ' ',		\
42 	(hdr)->depth     = ((d) & 0x3f) + ' ',		\
43 	(hdr)->_reserved = ' ' )
44 
45 struct b_header {
46   char magic[2];           /* magics */
47   char h_wide;             /* upper byte width (biased with 0x20) */
48   char l_wide;             /* lower byte width (biased with 0x20) */
49   char h_high;             /* upper byte height (biased with 0x20) */
50   char l_high;             /* lower byte height (biased with 0x20) */
51   char depth;              /* depth (biased with 0x20) */
52   char _reserved;          /* for alignment */
53 };
54 
55 /*
56  * Color lookup table information
57  */
58 struct nclut {
59   unsigned short colnum;
60   unsigned short red, green, blue;
61 } ;
62 
63 
64 /* extract from color.h */
65 
66 /*
67  * MGR Color Definitions
68  */
69 
70 #define LUT_BW    0
71 #define LUT_GREY  1
72 #define LUT_BGREY 2
73 #define LUT_VGA   3
74 #define LUT_BCT   4
75 #define LUT_USER  5
76 #define LUT       6
77 #define LUT_8     LUT
78 
79 #define RGB_RED   0
80 #define RGB_GREEN 1
81 #define RGB_BLUE  2
82 #define RGB       3
83 
84 #define LUTENTRIES 16
85 
86 #define BW_RED       15, 0, 15, 0, 15, 0, 15, 0, 15, 0, 15, 0, 15, 0, 15, 0
87 #define BW_GREEN     BW_RED
88 #define BW_BLUE      BW_RED
89 
90 #define GREY_RED     0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
91 #define GREY_GREEN   GREY_RED
92 #define GREY_BLUE    GREY_RED
93 
94 #define BGREY_RED    1, 0, 2, 8, 4, 3, 13, 11, 7, 6, 10, 12, 14, 5, 9, 15
95 #define BGREY_GREEN  BGREY_RED
96 #define BGREY_BLUE   BGREY_RED
97 
98 #define VGA_RED      0, 0, 0, 0, 8, 8, 8, 12, 8,  0,  0,  0, 15, 15, 15, 15
99 #define VGA_GREEN    0, 0, 8, 8, 0, 0, 8, 12, 8,  0, 15, 15,  0,  0, 15, 15
100 #define VGA_BLUE     0, 8, 0, 8, 0, 8, 0, 12, 8, 15,  0, 15,  0, 15,  0, 15
101 
102 #define BCT_RED      1,  7,  6, 15, 14, 3, 13, 11, 7, 13, 13, 15, 15, 5, 9, 15
103 #define BCT_GREEN    1,  7, 13, 12,  5, 3, 13, 11, 7, 14, 15, 15, 14, 5, 9, 15
104 #define BCT_BLUE     1, 14,  6,  8,  5, 3, 13, 11, 7, 15, 14, 12, 13, 5, 9, 15
105 
106 #define USER_RED     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
107 #define USER_GREEN   USER_RED
108 #define USER_BLUE    USER_RED
109 
110 static char mgrlut[LUT][RGB][LUTENTRIES] = {
111   { { BW_RED },    { BW_GREEN },    { BW_BLUE } },
112   { { GREY_RED },  { GREY_GREEN },  { GREY_BLUE } },
113   { { BGREY_RED }, { BGREY_GREEN }, { BGREY_BLUE } },
114   { { VGA_RED },   { VGA_GREEN },   { VGA_BLUE } },
115   { { BCT_RED },   { BCT_GREEN },   { BCT_BLUE } },
116   { { USER_RED },  { USER_GREEN },  { USER_BLUE } }
117 };
118 
119 #endif				/* gdevmgr_INCLUDED */
120