| 2 |
- |
1 |
/* Copyright (C) 1999 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: gdevmrun.h,v 1.5 2002/06/16 07:25:26 lpd Exp $ */
|
|
|
18 |
/* Definition of run-length encoded memory device */
|
|
|
19 |
|
|
|
20 |
#ifndef gdevmrun_INCLUDED
|
|
|
21 |
# define gdevmrun_INCLUDED
|
|
|
22 |
|
|
|
23 |
/*
|
|
|
24 |
* This memory device stores full-size pixels with run-length
|
|
|
25 |
* encoding if possible, switching to the standard uncompressed
|
|
|
26 |
* representation if necessary.
|
|
|
27 |
*/
|
|
|
28 |
|
|
|
29 |
#include "gxdevmem.h"
|
|
|
30 |
|
|
|
31 |
/*
|
|
|
32 |
* Define the device, built on a memory device.
|
|
|
33 |
*/
|
|
|
34 |
typedef struct gx_device_run_s {
|
|
|
35 |
gx_device_memory md; /* must be first */
|
|
|
36 |
uint runs_per_line;
|
|
|
37 |
int umin, umax1; /* some range of uninitialized lines */
|
|
|
38 |
int smin, smax1; /* some range in standard (not run) form */
|
|
|
39 |
/*
|
|
|
40 |
* Save memory device procedures that we replace with run-oriented
|
|
|
41 |
* ones, for use with the uncompressed representation.
|
|
|
42 |
*/
|
|
|
43 |
struct sp_ {
|
|
|
44 |
dev_proc_copy_mono((*copy_mono));
|
|
|
45 |
dev_proc_copy_color((*copy_color));
|
|
|
46 |
dev_proc_fill_rectangle((*fill_rectangle));
|
|
|
47 |
dev_proc_copy_alpha((*copy_alpha));
|
|
|
48 |
dev_proc_strip_tile_rectangle((*strip_tile_rectangle));
|
|
|
49 |
dev_proc_strip_copy_rop((*strip_copy_rop));
|
|
|
50 |
dev_proc_get_bits_rectangle((*get_bits_rectangle));
|
|
|
51 |
} save_procs;
|
|
|
52 |
} gx_device_run;
|
|
|
53 |
|
|
|
54 |
/*
|
|
|
55 |
* Convert a memory device to run-length form. The mdev argument should be
|
|
|
56 |
* const, but it isn't because we need to call gx_device_white.
|
|
|
57 |
*/
|
|
|
58 |
int gdev_run_from_mem(gx_device_run *rdev, gx_device_memory *mdev);
|
|
|
59 |
|
|
|
60 |
#endif /* gdevmrun_INCLUDED */
|