1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 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 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 /*
25 * Atari keyboard events manager, using Gemdos
26 *
27 * Patrice Mandin
28 */
29
30 /* Mint includes */
31 #include <mint/osbind.h>
32 #include <mint/cookie.h>
33
34 #include "../../events/SDL_sysevents.h"
35 #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 /* To save state of keyboard */
43
44 static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
45 static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
46 static SDL_bool use_dev_mouse = SDL_FALSE;
47
48 static void UpdateSpecialKeys(int special_keys_state);
49
AtariGemdos_InitOSKeymap(_THIS)50 void AtariGemdos_InitOSKeymap(_THIS)
51 {
52 int vectors_mask;
53 /* unsigned long dummy;*/
54
55 SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
56 SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
57
58 use_dev_mouse = (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
59
60 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
61 if (!use_dev_mouse) {
62 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
63 }
64 /* if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
65 vectors_mask = 0;
66 }*/
67 SDL_AtariXbios_InstallVectors(vectors_mask);
68 }
69
AtariGemdos_PumpEvents(_THIS)70 void AtariGemdos_PumpEvents(_THIS)
71 {
72 int i;
73 SDL_keysym keysym;
74
75 /* Update pressed keys */
76 SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
77
78 while (Cconis()!=DEV_BUSY) {
79 unsigned long key_pressed;
80 key_pressed=Cnecin();
81 gemdos_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
82 }
83
84 /* Read special keys */
85 UpdateSpecialKeys(Kbshift(-1));
86
87 /* Now generate events */
88 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
89 /* Key pressed ? */
90 if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
91 SDL_PrivateKeyboard(SDL_PRESSED,
92 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
93
94 /* Key unpressed ? */
95 if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
96 SDL_PrivateKeyboard(SDL_RELEASED,
97 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
98 }
99
100 if (use_dev_mouse) {
101 SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
102 } else {
103 SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
104 }
105
106 /* Will be previous table */
107 SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard, sizeof(gemdos_previouskeyboard));
108 }
109
UpdateSpecialKeys(int special_keys_state)110 static void UpdateSpecialKeys(int special_keys_state)
111 {
112 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
113 { \
114 if (special_keys_state & (1<<(numbit))) { \
115 gemdos_currentkeyboard[scancode]=0xFF; \
116 } \
117 }
118
119 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
120 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
121 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
122 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
123 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
124 }
125
AtariGemdos_ShutdownEvents(void)126 void AtariGemdos_ShutdownEvents(void)
127 {
128 SDL_AtariXbios_RestoreVectors();
129 if (use_dev_mouse) {
130 SDL_AtariDevMouse_Close();
131 }
132 }
133