1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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 hardware IKBD
26 *
27 * Patrice Mandin
28 */
29
30 /* Mint includes */
31 #include <mint/osbind.h>
32
33 #include "../../events/SDL_sysevents.h"
34 #include "../../events/SDL_events_c.h"
35
36 #include "SDL_atarikeys.h"
37 #include "SDL_atarievents_c.h"
38 #include "SDL_ikbdinterrupt_s.h"
39
40 #define KEY_PRESSED 0xff
41 #define KEY_UNDEFINED 0x80
42 #define KEY_RELEASED 0x00
43
44 static Uint16 atari_prevmouseb; /* save state of mouse buttons */
45
AtariIkbd_InitOSKeymap(_THIS)46 void AtariIkbd_InitOSKeymap(_THIS)
47 {
48 int i;
49
50 SDL_memset(SDL_AtariIkbd_keyboard, KEY_UNDEFINED, sizeof(SDL_AtariIkbd_keyboard));
51
52 /* Now install our handler */
53 SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
54 atari_prevmouseb = 0;
55
56 Supexec(SDL_AtariIkbdInstall);
57 }
58
atari_GetButton(int button)59 static int atari_GetButton(int button)
60 {
61 switch(button)
62 {
63 case 0:
64 return SDL_BUTTON_RIGHT;
65 break;
66 case 1:
67 default:
68 return SDL_BUTTON_LEFT;
69 break;
70 }
71 }
72
AtariIkbd_PumpEvents(_THIS)73 void AtariIkbd_PumpEvents(_THIS)
74 {
75 int i, specialkeys;
76 SDL_keysym keysym;
77
78 /*--- Send keyboard events ---*/
79
80 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
81 /* Key pressed ? */
82 if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {
83 SDL_PrivateKeyboard(SDL_PRESSED,
84 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
85 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
86 }
87
88 /* Key released ? */
89 if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {
90 SDL_PrivateKeyboard(SDL_RELEASED,
91 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
92 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
93 }
94 }
95
96 /*--- Send mouse events ---*/
97
98 /* Mouse motion ? */
99 if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {
100 SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);
101 SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
102 }
103
104 /* Mouse button ? */
105 if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {
106 for (i=0;i<2;i++) {
107 int curbutton, prevbutton;
108
109 curbutton = SDL_AtariIkbd_mouseb & (1<<i);
110 prevbutton = atari_prevmouseb & (1<<i);
111
112 if (curbutton && !prevbutton) {
113 SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
114 }
115 if (!curbutton && prevbutton) {
116 SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
117 }
118 }
119 atari_prevmouseb = SDL_AtariIkbd_mouseb;
120 }
121 }
122
AtariIkbd_ShutdownEvents(void)123 void AtariIkbd_ShutdownEvents(void)
124 {
125 Supexec(SDL_AtariIkbdUninstall);
126 }
127