/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

/*

 *	Atari keyboard events manager, using hardware IKBD

 *

 *	Patrice Mandin

 */

/* Mint includes */

#include <mint/osbind.h>

#include "../../events/SDL_sysevents.h"

#include "../../events/SDL_events_c.h"

#include "SDL_atarikeys.h"

#include "SDL_atarievents_c.h"

#include "SDL_ikbdinterrupt_s.h"

#define KEY_PRESSED		0xff

#define KEY_UNDEFINED	0x80

#define KEY_RELEASED	0x00

static Uint16 atari_prevmouseb;	/* save state of mouse buttons */

void AtariIkbd_InitOSKeymap(_THIS)

{

	int i;

	SDL_memset(SDL_AtariIkbd_keyboard, KEY_UNDEFINED, sizeof(SDL_AtariIkbd_keyboard));

	/* Now install our handler */

	SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;

	atari_prevmouseb = 0;

	Supexec(SDL_AtariIkbdInstall);

}

static int atari_GetButton(int button)

{

	switch(button)

	{

		case 0:

			return SDL_BUTTON_RIGHT;

			break;

		case 1:

		default:

			return SDL_BUTTON_LEFT;

			break;

	}

}

void AtariIkbd_PumpEvents(_THIS)

{

	int i, specialkeys;

	SDL_keysym keysym;

	/*--- Send keyboard events ---*/

	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {

		/* Key pressed ? */

		if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {

			SDL_PrivateKeyboard(SDL_PRESSED,

				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));

			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;

		}

		/* Key released ? */

		if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {

			SDL_PrivateKeyboard(SDL_RELEASED,

				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));

			SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;

		}

	}

	/*--- Send mouse events ---*/

	/* Mouse motion ? */

	if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {

		SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);

		SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;

	}

	/* Mouse button ? */

	if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {

		for (i=0;i<2;i++) {

			int curbutton, prevbutton;

			curbutton = SDL_AtariIkbd_mouseb & (1<<i);

			prevbutton = atari_prevmouseb & (1<<i);

			if (curbutton && !prevbutton) {

				SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);

			}

			if (!curbutton && prevbutton) {

				SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);

			}

		}

		atari_prevmouseb = SDL_AtariIkbd_mouseb;

	}

}

void AtariIkbd_ShutdownEvents(void)

{

	Supexec(SDL_AtariIkbdUninstall);

}