view src/video/ataricommon/SDL_gemdosevents.c @ 3796:b19680c84cdf SDL-ryan-multiple-audio-device

Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of the core and into the drivers where it belongs, and push generic responsibilities out of the drivers and into the core where they belong.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 04 Oct 2006 19:54:23 +0000
parents adf732f1f016
children 99210400e8b9
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/*
    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 Gemdos
 *
 *	Patrice Mandin
 */

/* Mint includes */
#include <mint/osbind.h>
#include <mint/cookie.h>

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

#include "SDL_atarikeys.h"
#include "SDL_atarievents_c.h"
#include "SDL_xbiosevents_c.h"
#include "SDL_ataridevmouse_c.h"

/* To save state of keyboard */

static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
static SDL_bool use_dev_mouse = SDL_FALSE;

enum
{
    DEV_BUSY = 0,
    DEV_READY
};

static void UpdateSpecialKeys(int special_keys_state);

void
AtariGemdos_InitOSKeymap(_THIS)
{
    int i, vectors_mask;
    unsigned long dummy;

    SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
    SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));

    use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;

    vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS;  /* XBIOS joystick events */
    if (!use_dev_mouse) {
        vectors_mask |= ATARI_XBIOS_MOUSEEVENTS;        /* XBIOS mouse events */
    }
    /*if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
       vectors_mask = 0;
       } */

    SDL_AtariXbios_InstallVectors(vectors_mask);
}

void
AtariGemdos_PumpEvents(_THIS)
{
    int i;
    SDL_keysym keysym;

    /* Update pressed keys */
    SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);

    while (Cconis() != DEV_BUSY) {
        unsigned long key_pressed;
        key_pressed = Cnecin();
        gemdos_currentkeyboard[(key_pressed >> 16) & (ATARIBIOS_MAXKEYS - 1)]
            = 0xFF;
    }

    /* Read special keys */
    UpdateSpecialKeys(Kbshift(-1));

    /* Now generate events */
    for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
        /* Key pressed ? */
        if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
            SDL_PrivateKeyboard(SDL_PRESSED,
                                SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));

        /* Key unpressed ? */
        if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
            SDL_PrivateKeyboard(SDL_RELEASED,
                                SDL_Atari_TranslateKey(i, &keysym,
                                                       SDL_FALSE));
    }

    if (use_dev_mouse) {
        SDL_AtariDevMouse_PostMouseEvents(_this, SDL_TRUE);
    } else {
        SDL_AtariXbios_PostMouseEvents(_this, SDL_TRUE);
    }

    /* Will be previous table */
    SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard,
               sizeof(gemdos_previouskeyboard));
}

static void
UpdateSpecialKeys(int special_keys_state)
{
#define UPDATE_SPECIAL_KEYS(numbit,scancode) \
	{	\
		if (special_keys_state & (1<<(numbit))) { \
			gemdos_currentkeyboard[scancode]=0xFF; \
		}	\
	}

    UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
    UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
    UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
    UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
    UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
}

void
AtariGemdos_ShutdownEvents(void)
{
    SDL_AtariXbios_RestoreVectors();
    if (use_dev_mouse) {
        SDL_AtariDevMouse_Close();
    }
}

/* vi: set ts=4 sw=4 expandtab: */