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
|
/*
* This software is copyrighted as noted below. It may be freely copied,
* modified, and redistributed, provided that the copyright notice is
* preserved on all copies.
*
* There is no warranty or other guarantee of fitness for this software,
* it is provided solely "as is". Bug reports or fixes may be sent
* to the author, who may or may not act on them as he desires.
*
* You may not include this software in a program or other software product
* without supplying the source, or without informing the end-user that the
* source is available for no extra charge.
*
* If you modify this software, you should include a notice giving the
* name of the person performing the modification, the date of modification,
* and the reason for such modification.
*/
/*
* rle_code.h - Definitions for Run Length Encoding.
*
* Author: Spencer W. Thomas
* Computer Science Dept.
* University of Utah
* Date: Mon Aug 9 1982
* Copyright (c) 1982 Spencer W. Thomas
*
* $Header: /usr/users/spencer/src/urt/include/RCS/rle_code.h,v 3.0 90/08/03 15:19:48 spencer Exp $
*/
#ifndef RLE_MAGIC
/*
* Opcode definitions
*/
#define LONG 0x40
#define RSkipLinesOp 1
#define RSetColorOp 2
#define RSkipPixelsOp 3
#define RByteDataOp 5
#define RRunDataOp 6
#define REOFOp 7
#define H_CLEARFIRST 0x1 /* clear framebuffer flag */
#define H_NO_BACKGROUND 0x2 /* if set, no bg color supplied */
#define H_ALPHA 0x4 /* if set, alpha channel (-1) present */
#define H_COMMENT 0x8 /* if set, comments present */
struct XtndRsetup {
/* This maps the layout of the header text in the file */
unsigned char hc_xpos[2];
unsigned char hc_ypos[2];
unsigned char hc_xlen[2];
unsigned char hc_ylen[2];
unsigned char h_flags;
unsigned char h_ncolors;
unsigned char h_pixelbits;
unsigned char h_ncmap;
unsigned char h_cmaplen; /* log2 of color map size */
};
#define SETUPSIZE ((4*2)+5)
/* "Old" RLE format magic numbers */
#define RMAGIC ('R' << 8) /* top half of magic number */
#define WMAGIC ('W' << 8) /* black&white rle image */
#define RLE_MAGIC ((short)0xcc52) /* RLE file magic number */
#endif /* RLE_MAGIC */
|
