source: libcaca/trunk/cucul/cucul_internals.h @ 874

Last change on this file since 874 was 874, checked in by Sam Hocevar, 15 years ago
  • More error checking in libcucul.
  • Property svn:keywords set to Id
File size: 2.0 KB
Line 
1/*
2 *  libcucul      Canvas for ultrafast compositing of Unicode letters
3 *  Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id: cucul_internals.h 874 2006-04-25 11:05:25Z sam $
7 *
8 *  This library is free software; you can redistribute it and/or
9 *  modify it under the terms of the Do What The Fuck You Want To
10 *  Public License, Version 2, as published by Sam Hocevar. See
11 *  http://sam.zoy.org/wtfpl/COPYING for more details.
12 */
13
14#ifndef __CUCUL_INTERNALS_H__
15#define __CUCUL_INTERNALS_H__
16
17#if defined(HAVE_INTTYPES_H) && !defined(__KERNEL__)
18#   include <inttypes.h>
19#endif
20
21struct cucul_canvas
22{
23    /* Canvas size */
24    unsigned int width, height;
25
26    /* Shortcut to the active frame */
27    uint32_t *chars;
28    uint32_t *attr;
29
30    /* Frame information */
31    unsigned int frame, framecount;
32    uint32_t **allchars;
33    uint32_t **allattr;
34
35    /* Painting context */
36    uint16_t fgcolor;
37    uint16_t bgcolor;
38
39    unsigned int refcount;
40};
41
42struct cucul_buffer
43{
44    unsigned long int size;
45    char *data;
46};
47
48/* Bitmap functions */
49extern int _cucul_init_dither(void);
50extern int _cucul_end_dither(void);
51
52/* Canvas functions */
53extern int _cucul_set_canvas_size(cucul_canvas_t *, unsigned int, unsigned int);
54extern void _cucul_putchar32(cucul_canvas_t *, int, int, uint32_t);
55
56/* Charset functions */
57extern unsigned int _cucul_strlen_utf8(char const *);
58extern char const *_cucul_skip_utf8(char const *, unsigned int);
59extern uint32_t _cucul_utf8_to_utf32(char const *);
60extern uint8_t _cucul_utf32_to_cp437(uint32_t);
61extern uint32_t _cucul_cp437_to_utf32(uint8_t);
62
63/* Colour functions */
64uint8_t _cucul_argb32_to_ansi8(uint32_t);
65uint8_t _cucul_argb32_to_ansi4fg(uint32_t);
66uint8_t _cucul_argb32_to_ansi4bg(uint32_t);
67uint16_t _cucul_argb32_to_rgb12fg(uint32_t);
68uint16_t _cucul_argb32_to_rgb12bg(uint32_t);
69uint32_t _cucul_argb32_to_rgb24fg(uint32_t);
70uint32_t _cucul_argb32_to_rgb24bg(uint32_t);
71void _cucul_argb32_to_argb4(uint32_t, uint8_t[8]);
72
73#endif /* __CUCUL_INTERNALS_H__ */
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