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 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
44static Uint16 atari_prevmouseb;	/* save state of mouse buttons */
45
46void AtariIkbd_InitOSKeymap(_THIS)
47{
48	SDL_memset((void *) SDL_AtariIkbd_keyboard, KEY_UNDEFINED, sizeof(SDL_AtariIkbd_keyboard));
49
50	/* Now install our handler */
51	SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
52	atari_prevmouseb = 0;
53
54	Supexec(SDL_AtariIkbdInstall);
55}
56
57static int atari_GetButton(int button)
58{
59	switch(button)
60	{
61		case 0:
62			return SDL_BUTTON_RIGHT;
63			break;
64		case 1:
65		default:
66			return SDL_BUTTON_LEFT;
67			break;
68	}
69}
70
71void AtariIkbd_PumpEvents(_THIS)
72{
73	int i;
74	SDL_keysym keysym;
75
76	/*--- Send keyboard events ---*/
77
78	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
79		/* Key pressed ? */
80		if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {
81			SDL_PrivateKeyboard(SDL_PRESSED,
82				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
83			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
84		}
85
86		/* Key released ? */
87		if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {
88			SDL_PrivateKeyboard(SDL_RELEASED,
89				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
90			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
91		}
92	}
93
94	/*--- Send mouse events ---*/
95
96	/* Mouse motion ? */
97	if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {
98		SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);
99		SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
100	}
101
102	/* Mouse button ? */
103	if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {
104		for (i=0;i<2;i++) {
105			int curbutton, prevbutton;
106
107			curbutton = SDL_AtariIkbd_mouseb & (1<<i);
108			prevbutton = atari_prevmouseb & (1<<i);
109
110			if (curbutton && !prevbutton) {
111				SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
112			}
113			if (!curbutton && prevbutton) {
114				SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
115			}
116		}
117		atari_prevmouseb = SDL_AtariIkbd_mouseb;
118	}
119}
120
121void AtariIkbd_ShutdownEvents(void)
122{
123	Supexec(SDL_AtariIkbdUninstall);
124}
125