SDL_biosevents.c
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2009 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
Lesser General Public License for more details.
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
20
21
Sam Lantinga
slouken@libsdl.org
*/
22
#include "SDL_config.h"
23
24
25
26
27
28
29
30
31
/*
* Atari keyboard events manager, using BIOS
*
* Patrice Mandin
*/
/* Mint includes */
#include <mint/osbind.h>
32
#include <mint/cookie.h>
34
35
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
36
37
#include "SDL_atarikeys.h"
38
#include "SDL_atarievents_c.h"
39
#include "SDL_xbiosevents_c.h"
40
#include "SDL_ataridevmouse_c.h"
41
42
43
static unsigned char bios_currentkeyboard[ATARIBIOS_MAXKEYS];
static unsigned char bios_previouskeyboard[ATARIBIOS_MAXKEYS];
44
static SDL_bool use_dev_mouse = SDL_FALSE;
45
46
47
48
49
static void UpdateSpecialKeys(int special_keys_state);
void AtariBios_InitOSKeymap(_THIS)
{
50
51
int i, vectors_mask;
unsigned long dummy;
53
54
SDL_memset(bios_currentkeyboard, 0, sizeof(bios_currentkeyboard));
SDL_memset(bios_previouskeyboard, 0, sizeof(bios_previouskeyboard));
56
57
58
59
60
61
use_dev_mouse = (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
if (!use_dev_mouse) {
vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
}
62
/* if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
63
vectors_mask = 0;
65
66
SDL_AtariXbios_InstallVectors(vectors_mask);
67
68
69
70
71
72
73
74
}
void AtariBios_PumpEvents(_THIS)
{
int i;
SDL_keysym keysym;
/* Update pressed keys */
75
SDL_memset(bios_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
76
77
78
79
while (Bconstat(_CON)) {
unsigned long key_pressed;
key_pressed=Bconin(_CON);
80
bios_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
81
82
83
84
85
86
87
88
89
}
/* Read special keys */
UpdateSpecialKeys(Kbshift(-1));
/* Now generate events */
for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
/* Key pressed ? */
if (bios_currentkeyboard[i] && !bios_previouskeyboard[i])
90
SDL_PrivateKeyboard(SDL_PRESSED,
91
SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
92
93
94
/* Key unpressed ? */
if (bios_previouskeyboard[i] && !bios_currentkeyboard[i])
95
SDL_PrivateKeyboard(SDL_RELEASED,
96
SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
99
100
101
102
103
if (use_dev_mouse) {
SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
} else {
SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
}
104
105
/* Will be previous table */
106
SDL_memcpy(bios_previouskeyboard, bios_currentkeyboard, sizeof(bios_previouskeyboard));
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
}
static void UpdateSpecialKeys(int special_keys_state)
{
#define UPDATE_SPECIAL_KEYS(numbit,scancode) \
{ \
if (special_keys_state & (1<<(numbit))) { \
bios_currentkeyboard[scancode]=0xFF; \
} \
}
UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
}
void AtariBios_ShutdownEvents(void)
{
127
SDL_AtariXbios_RestoreVectors();
128
129
130
if (use_dev_mouse) {
SDL_AtariDevMouse_Close();
}