src/video/ataricommon/SDL_gemdosevents.c
author Patrice Mandin
Fri, 06 Jan 2006 22:24:09 +0000
changeset 1237 a8068adf156b
parent 1221 8ef3e7e92a91
child 1310 a201a8c62522
permissions -rw-r--r--
Disable XBIOS driver for mouse and joystick under MiNT. Will write a driver for /dev/mouse later.
slouken@281
     1
/*
slouken@281
     2
    SDL - Simple DirectMedia Layer
slouken@769
     3
    Copyright (C) 1997-2004 Sam Lantinga
slouken@281
     4
slouken@281
     5
    This library is free software; you can redistribute it and/or
slouken@281
     6
    modify it under the terms of the GNU Library General Public
slouken@281
     7
    License as published by the Free Software Foundation; either
slouken@281
     8
    version 2 of the License, or (at your option) any later version.
slouken@281
     9
slouken@281
    10
    This library is distributed in the hope that it will be useful,
slouken@281
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@281
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@281
    13
    Library General Public License for more details.
slouken@281
    14
slouken@281
    15
    You should have received a copy of the GNU Library General Public
slouken@281
    16
    License along with this library; if not, write to the Free
slouken@281
    17
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
slouken@281
    18
slouken@281
    19
    Sam Lantinga
slouken@281
    20
    slouken@libsdl.org
slouken@281
    21
*/
slouken@281
    22
slouken@281
    23
#ifdef SAVE_RCSID
slouken@281
    24
static char rcsid =
slouken@281
    25
 "@(#) $Id$";
slouken@281
    26
#endif
slouken@281
    27
slouken@281
    28
/*
slouken@281
    29
 *	Atari keyboard events manager, using Gemdos
slouken@281
    30
 *
slouken@281
    31
 *	Patrice Mandin
slouken@281
    32
 */
slouken@281
    33
slouken@281
    34
#include <string.h>
slouken@281
    35
slouken@281
    36
/* Mint includes */
slouken@281
    37
#include <mint/osbind.h>
patmandin@1237
    38
#include <mint/cookie.h>
slouken@281
    39
slouken@281
    40
#include "SDL.h"
slouken@281
    41
#include "SDL_sysevents.h"
slouken@281
    42
#include "SDL_events_c.h"
slouken@281
    43
slouken@281
    44
#include "SDL_atarikeys.h"
patmandin@1209
    45
#include "SDL_atarievents_c.h"
slouken@305
    46
#include "SDL_xbiosevents_c.h"
slouken@281
    47
slouken@281
    48
/* To save state of keyboard */
slouken@281
    49
#define ATARIBIOS_MAXKEYS 128
slouken@281
    50
slouken@281
    51
static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
slouken@281
    52
static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
slouken@281
    53
static unsigned char gemdos_currentascii[ATARIBIOS_MAXKEYS];
slouken@281
    54
slouken@281
    55
/* Special keys state */
slouken@281
    56
enum {
slouken@281
    57
	K_RSHIFT=0,
slouken@281
    58
	K_LSHIFT,
slouken@281
    59
	K_CTRL,
slouken@281
    60
	K_ALT,
slouken@281
    61
	K_CAPSLOCK,
slouken@281
    62
	K_CLRHOME,
slouken@281
    63
	K_INSERT
slouken@281
    64
};
slouken@281
    65
slouken@281
    66
enum {
slouken@281
    67
	DEV_BUSY=0,
slouken@281
    68
	DEV_READY
slouken@281
    69
};
slouken@281
    70
slouken@281
    71
/* The translation tables from a console scancode to a SDL keysym */
slouken@281
    72
static SDLKey keymap[ATARIBIOS_MAXKEYS];
slouken@281
    73
patmandin@1209
    74
static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym,
patmandin@1209
    75
	SDL_bool pressed);
slouken@281
    76
static void UpdateSpecialKeys(int special_keys_state);
slouken@281
    77
slouken@281
    78
void AtariGemdos_InitOSKeymap(_THIS)
slouken@281
    79
{
patmandin@1237
    80
	int i, vectors_mask;
patmandin@1237
    81
	unsigned long dummy;
slouken@281
    82
slouken@281
    83
	memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
slouken@281
    84
	memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
slouken@281
    85
slouken@281
    86
	/* Initialize keymap */
slouken@281
    87
	for ( i=0; i<sizeof(keymap); i++ )
slouken@281
    88
		keymap[i] = SDLK_UNKNOWN;
slouken@281
    89
slouken@281
    90
	/* Functions keys */
slouken@281
    91
	for ( i = 0; i<10; i++ )
slouken@281
    92
		keymap[SCANCODE_F1 + i] = SDLK_F1+i;
slouken@281
    93
slouken@281
    94
	/* Cursor keypad */
slouken@281
    95
	keymap[SCANCODE_HELP] = SDLK_HELP;
slouken@281
    96
	keymap[SCANCODE_UNDO] = SDLK_UNDO;
slouken@281
    97
	keymap[SCANCODE_INSERT] = SDLK_INSERT;
slouken@281
    98
	keymap[SCANCODE_CLRHOME] = SDLK_HOME;
slouken@281
    99
	keymap[SCANCODE_UP] = SDLK_UP;
slouken@281
   100
	keymap[SCANCODE_DOWN] = SDLK_DOWN;
slouken@281
   101
	keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
slouken@281
   102
	keymap[SCANCODE_LEFT] = SDLK_LEFT;
slouken@281
   103
slouken@281
   104
	/* Special keys */
slouken@281
   105
	keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
slouken@281
   106
	keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
slouken@281
   107
	keymap[SCANCODE_TAB] = SDLK_TAB;
slouken@281
   108
	keymap[SCANCODE_ENTER] = SDLK_RETURN;
slouken@281
   109
	keymap[SCANCODE_DELETE] = SDLK_DELETE;
slouken@281
   110
	keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
slouken@281
   111
	keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
slouken@281
   112
	keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
slouken@281
   113
	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
slouken@281
   114
	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
slouken@281
   115
patmandin@1237
   116
	vectors_mask = ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS;
patmandin@1237
   117
	if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
patmandin@1237
   118
		vectors_mask = 0;
patmandin@1237
   119
	}
patmandin@1237
   120
patmandin@1237
   121
	SDL_AtariXbios_InstallVectors(vectors_mask);
slouken@281
   122
}
slouken@281
   123
slouken@281
   124
void AtariGemdos_PumpEvents(_THIS)
slouken@281
   125
{
slouken@281
   126
	int i;
slouken@281
   127
	SDL_keysym keysym;
slouken@281
   128
slouken@281
   129
	/* Update pressed keys */
slouken@281
   130
	memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
slouken@281
   131
slouken@281
   132
	while (Cconis()!=DEV_BUSY) {
slouken@281
   133
		unsigned long key_pressed;
slouken@281
   134
		unsigned char scancode, asciicode;
slouken@281
   135
slouken@281
   136
		key_pressed=Cnecin();
slouken@281
   137
slouken@281
   138
		asciicode = key_pressed;
slouken@281
   139
		scancode = key_pressed >> 16;
slouken@281
   140
slouken@281
   141
		gemdos_currentkeyboard[scancode]=0xFF;
slouken@281
   142
		gemdos_currentascii[scancode]=asciicode;
slouken@281
   143
	}
slouken@281
   144
slouken@281
   145
	/* Read special keys */
slouken@281
   146
	UpdateSpecialKeys(Kbshift(-1));
slouken@281
   147
slouken@281
   148
	/* Now generate events */
slouken@281
   149
	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
slouken@281
   150
		/* Key pressed ? */
slouken@281
   151
		if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
patmandin@1209
   152
			SDL_PrivateKeyboard(SDL_PRESSED,
patmandin@1209
   153
				TranslateKey(i, gemdos_currentascii[i], &keysym, SDL_TRUE));
slouken@281
   154
			
slouken@281
   155
		/* Key unpressed ? */
slouken@281
   156
		if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
patmandin@1209
   157
			SDL_PrivateKeyboard(SDL_RELEASED,
patmandin@1209
   158
				TranslateKey(i, gemdos_currentascii[i], &keysym, SDL_FALSE));
slouken@281
   159
	}
slouken@281
   160
slouken@305
   161
	SDL_AtariXbios_PostMouseEvents(this);
slouken@281
   162
slouken@281
   163
	/* Will be previous table */
slouken@281
   164
	memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard, ATARIBIOS_MAXKEYS);
slouken@281
   165
}
slouken@281
   166
slouken@281
   167
static void UpdateSpecialKeys(int special_keys_state)
slouken@281
   168
{
slouken@281
   169
#define UPDATE_SPECIAL_KEYS(numbit,scancode) \
slouken@281
   170
	{	\
slouken@281
   171
		if (special_keys_state & (1<<(numbit))) { \
slouken@281
   172
			gemdos_currentkeyboard[scancode]=0xFF; \
slouken@281
   173
			gemdos_currentascii[scancode]=0; \
slouken@281
   174
		}	\
slouken@281
   175
	}
slouken@281
   176
slouken@281
   177
	UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
slouken@281
   178
	UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
slouken@281
   179
	UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
slouken@281
   180
	UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
slouken@281
   181
	UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
slouken@281
   182
}
slouken@281
   183
patmandin@1209
   184
static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym,
patmandin@1209
   185
	SDL_bool pressed)
slouken@281
   186
{
slouken@281
   187
	/* Set the keysym information */
slouken@281
   188
	keysym->scancode = scancode;
slouken@281
   189
slouken@281
   190
	if (asciicode)
slouken@281
   191
		keysym->sym = asciicode;		
slouken@281
   192
	else
slouken@281
   193
		keysym->sym = keymap[scancode];
slouken@281
   194
slouken@281
   195
	keysym->mod = KMOD_NONE;
slouken@281
   196
	keysym->unicode = 0;
patmandin@1221
   197
	if (SDL_TranslateUNICODE && pressed) {
patmandin@1221
   198
		keysym->unicode = SDL_AtariToUnicodeTable[asciicode];
patmandin@1209
   199
	}
slouken@281
   200
slouken@281
   201
	return(keysym);
slouken@281
   202
}
slouken@281
   203
slouken@281
   204
void AtariGemdos_ShutdownEvents(void)
slouken@281
   205
{
slouken@305
   206
	SDL_AtariXbios_RestoreVectors();
slouken@281
   207
}