src/video/ataricommon/SDL_atarievents.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 17 Feb 2002 19:54:28 +0000
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/*
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 *	Atari keyboard events manager
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 *
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 *	Patrice Mandin
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 *
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 *	This routines choose what the final event manager will be
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 */
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#include <stdlib.h>
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#include <string.h>
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#include <sys/cookie.h>
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#include "SDL.h"
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#include "SDL_sysevents.h"
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#include "SDL_events_c.h"
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#include "SDL_atarievents_c.h"
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#include "SDL_biosevents_c.h"
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#include "SDL_gemdosevents_c.h"
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#include "SDL_ikbdevents_c.h"
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enum {
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	MCH_ST=0,
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	MCH_STE,
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	MCH_TT,
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	MCH_F30
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};
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void (*Atari_ShutdownEvents)(void);
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static void Atari_InitializeEvents(_THIS)
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{
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	const char *envr;
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	unsigned long cookie_mch;
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	/* Test if we are on an Atari machine or not */
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	if (Getcookie(C__MCH, &cookie_mch) == C_NOTFOUND) {
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		cookie_mch = 0;
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	}
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	cookie_mch >>= 16;
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	/* Default is Ikbd, the faster except for clones */
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	switch(cookie_mch) {
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		case MCH_ST:
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		case MCH_STE:
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		case MCH_TT:
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		case MCH_F30:
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			this->InitOSKeymap=AtariIkbd_InitOSKeymap;
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			this->PumpEvents=AtariIkbd_PumpEvents;
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			Atari_ShutdownEvents=AtariIkbd_ShutdownEvents;
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			break;
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		default:
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			this->InitOSKeymap=AtariGemdos_InitOSKeymap;
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			this->PumpEvents=AtariGemdos_PumpEvents;
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			Atari_ShutdownEvents=AtariGemdos_ShutdownEvents;
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			break;
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	}
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	envr = getenv("SDL_ATARI_EVENTSDRIVER");
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 	if (!envr) {
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		return;
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	}
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	if (strcmp(envr, "ikbd") == 0) {
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		this->InitOSKeymap=AtariIkbd_InitOSKeymap;
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		this->PumpEvents=AtariIkbd_PumpEvents;
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		Atari_ShutdownEvents=AtariIkbd_ShutdownEvents;
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	}
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	if (strcmp(envr, "gemdos") == 0) {
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		this->InitOSKeymap=AtariGemdos_InitOSKeymap;
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		this->PumpEvents=AtariGemdos_PumpEvents;
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		Atari_ShutdownEvents=AtariGemdos_ShutdownEvents;
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	}
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	if (strcmp(envr, "bios") == 0) {
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		this->InitOSKeymap=AtariBios_InitOSKeymap;
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		this->PumpEvents=AtariBios_PumpEvents;
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		Atari_ShutdownEvents=AtariBios_ShutdownEvents;
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	}
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}
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void Atari_InitOSKeymap(_THIS)
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{
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	Atari_InitializeEvents(this);
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	/* Call choosen routine */
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	this->InitOSKeymap(this);
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}
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void Atari_PumpEvents(_THIS)
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{
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	Atari_InitializeEvents(this);
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	/* Call choosen routine */
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	this->PumpEvents(this);
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}