3 * Copyright (C) 1998 Brainchild Design - http://brainchilddesign.com/
5 * Copyright (C) 2001 tarzeau@space.ch
7 * Copyright (C) 2002 Florian Schulze - crow@icculus.org
9 * Portions of this code are from the MPEG software simulation group
10 * idct implementation. This code will be replaced with a new
11 * implementation soon.
13 * This file is part of Jump'n'Bump.
15 * Jump'n'Bump is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * Jump'n'Bump is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
37 volatile char keyb[256];
38 volatile char last_keys[50];
40 unsigned char scancode2ascii[256] = {
41 0, 0, 49, 50, 51, 52, 53, 54, 55, 56, /* 0-9 */
42 57, 48, 45, 0, 0, 0, 113, 119, 101, 114, /* 10-19 */
43 116, 121, 117, 105, 111, 112, 0, 0, 0, 0, /* 20-29 */
44 97, 115, 100, 102, 103, 104, 106, 107, 108, 0, /* 30-39 */
45 0, 0, 0, 0, 122, 120, 99, 118, 98, 110, /* 40-49 */
46 109, 44, 46, 47, 0, 0, 0, 32, 0, 0, /* 50-59 */
47 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
48 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
49 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
50 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
51 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
52 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
53 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
54 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
55 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
56 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
57 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
58 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
59 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
60 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
61 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
62 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
63 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
64 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
65 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
69 _go32_dpmi_seginfo old_keyb_handler_seginfo, new_keyb_handler_seginfo;
84 if ((key & 0x80) == 0) {
86 for (c1 = 48; c1 > 0; c1--)
87 last_keys[c1] = last_keys[c1 - 1];
88 last_keys[0] = scancode2ascii[key & 0x7f];
92 if ((key & 0x80) == 0) {
93 keyb[(key & 0x7f) + 0x80] = 1;
94 for (c1 = 48; c1 > 0; c1--)
95 last_keys[c1] = last_keys[c1 - 1];
96 last_keys[0] = scancode2ascii[(key & 0x7f) + 0x80];
98 keyb[(key & 0x7f) + 0x80] = 0;
104 outportb(0x20, 0x20);
108 void keyb_handler_end()
113 char hook_keyb_handler(void)
116 if (keyb_handler_info.enabled == 0) {
117 _go32_dpmi_lock_data((char *) &keyb, sizeof(keyb));
118 _go32_dpmi_lock_code(keyb_handler, (unsigned long) keyb_handler_end - (unsigned long) keyb_handler);
119 _go32_dpmi_get_protected_mode_interrupt_vector(9, &old_keyb_handler_seginfo);
120 new_keyb_handler_seginfo.pm_offset = (int) keyb_handler;
121 if (_go32_dpmi_allocate_iret_wrapper(&new_keyb_handler_seginfo) != 0)
123 if (_go32_dpmi_set_protected_mode_interrupt_vector(9, &new_keyb_handler_seginfo) != 0) {
124 _go32_dpmi_free_iret_wrapper(&new_keyb_handler_seginfo);
127 keyb_handler_info.enabled = 1;
128 memset(last_keys, 0, sizeof(last_keys));
136 void remove_keyb_handler(void)
139 if (keyb_handler_info.enabled == 1) {
140 _go32_dpmi_set_protected_mode_interrupt_vector(9, &old_keyb_handler_seginfo);
141 _go32_dpmi_free_iret_wrapper(&new_keyb_handler_seginfo);
142 keyb_handler_info.enabled = 0;
148 char key_pressed(unsigned char key)