source: libcaca/trunk/caca/driver_conio.c @ 540

Last change on this file since 540 was 540, checked in by Sam Hocevar, 15 years ago
  • Polished the driver split a bit (still no events, except resize events), properly credited authors and documented a few things.
  • Property svn:keywords set to Id
File size: 3.2 KB
Line 
1/*
2 *  libcaca       ASCII-Art library
3 *  Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  This library is free software; you can redistribute it and/or
7 *  modify it under the terms of the Do What The Fuck You Want To
8 *  Public License, Version 2, as published by Sam Hocevar. See
9 *  http://sam.zoy.org/wtfpl/COPYING for more details.
10 */
11
12/** \file driver_conio.c
13 *  \version \$Id: driver_conio.c 540 2006-03-07 09:17:35Z sam $
14 *  \author Sam Hocevar <sam@zoy.org>
15 *  \brief DOS/conio.h driver
16 *
17 *  This file contains the libcaca DOS/conio.h input and output driver
18 */
19
20#include "config.h"
21
22#if defined(USE_CONIO)
23
24#include <dos.h>
25#include <conio.h>
26#if defined(SCREENUPDATE_IN_PC_H)
27#   include <pc.h>
28#endif
29
30#include <string.h>
31#include <stdlib.h>
32#if defined(HAVE_UNISTD_H)
33#   include <unistd.h>
34#endif
35#include <stdarg.h>
36
37#if defined(HAVE_SYS_IOCTL_H)
38#   include <sys/ioctl.h>
39#endif
40
41#include "caca.h"
42#include "caca_internals.h"
43#include "cucul.h"
44#include "cucul_internals.h"
45
46static int conio_init_graphics(caca_t *kk)
47{
48    _wscroll = 0;
49    _setcursortype(_NOCURSOR);
50    clrscr();
51
52    gettextinfo(&kk->conio.ti);
53    kk->conio.screen = malloc(2 * kk->conio.ti.screenwidth
54                                * kk->conio.ti.screenheight * sizeof(char));
55    if(kk->conio.screen == NULL)
56        return -1;
57#   if defined(SCREENUPDATE_IN_PC_H)
58    ScreenRetrieve(kk->conio.screen);
59#   else
60    /* FIXME */
61#   endif
62    cucul_set_size(kk->qq, kk->conio.ti.screenwidth,
63                           kk->conio.ti.screenheight);
64    return 0;
65}
66
67static int conio_end_graphics(caca_t *kk)
68{
69    _wscroll = 1;
70    textcolor((enum COLORS)WHITE);
71    textbackground((enum COLORS)BLACK);
72    gotoxy(_caca_width, _caca_height);
73    cputs("\r\n");
74    _setcursortype(_NORMALCURSOR);
75
76    free(kk->conio.screen);
77
78    return 0;
79}
80
81static int conio_set_window_title(caca_t *kk, char const *title)
82{
83    return 0;
84}
85
86static unsigned int conio_get_window_width(caca_t *kk)
87{
88    /* Fallback to a 6x10 font */
89    return kk->qq->width * 6;
90}
91
92static unsigned int conio_get_window_height(caca_t *kk)
93{
94    /* Fallback to a 6x10 font */
95    return kk->qq->height * 10;
96}
97
98static void conio_display(caca_t *kk)
99{
100    int n;
101    char *screen = kk->conio.screen;
102    uint8_t *attr = kk->qq->attr;
103    uint32_t *chars = kk->qq->chars;
104    for(n = kk->qq->height * kk->qq->width; n--; )
105    {
106        *screen++ = *chars++ & 0x7f;
107        *screen++ = *attr++;
108    }
109#   if defined(SCREENUPDATE_IN_PC_H)
110    ScreenUpdate(kk->conio.screen);
111#   else
112    /* FIXME */
113#   endif
114}
115
116static void conio_handle_resize(caca_t *kk, unsigned int *new_width,
117                                            unsigned int *new_height)
118{
119    *new_width = kk->qq->width;
120    *new_height = kk->qq->height;
121}
122
123/*
124 * Driver initialisation
125 */
126
127void conio_init_driver(caca_t *kk)
128{
129    kk->driver.driver = CACA_DRIVER_CONIO;
130
131    kk->driver.init_graphics = conio_init_graphics;
132    kk->driver.end_graphics = conio_end_graphics;
133    kk->driver.set_window_title = conio_set_window_title;
134    kk->driver.get_window_width = conio_get_window_width;
135    kk->driver.get_window_height = conio_get_window_height;
136    kk->driver.display = conio_display;
137    kk->driver.handle_resize = conio_handle_resize;
138}
139
140#endif /* USE_CONIO */
141
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