283 lines
6.3 KiB
C
283 lines
6.3 KiB
C
/*
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GSport - an Apple //gs Emulator
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Copyright (C) 2010 - 2013 by GSport contributors
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Based on the KEGS emulator written by and Copyright (C) 2003 Kent Dickey
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "defc.h"
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#ifdef __linux__
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# include <linux/joystick.h>
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# include <sys/time.h>
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#endif
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#ifdef _WIN32
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# include <windows.h>
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# include <mmsystem.h>
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# include <time.h>
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#endif
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extern int g_joystick_native_type1; /* in paddles.c */
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extern int g_joystick_native_type2; /* in paddles.c */
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extern int g_joystick_native_type; /* in paddles.c */
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extern int g_paddle_buttons;
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extern int g_paddle_val[];
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const char *g_joystick_dev = "/dev/input/js0"; /* default joystick dev file */
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#define MAX_JOY_NAME 128
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int g_joystick_native_fd = -1;
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int g_joystick_num_axes = 0;
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int g_joystick_num_buttons = 0;
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#ifdef __linux__
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# define JOYSTICK_DEFINED
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void
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joystick_init()
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{
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char joy_name[MAX_JOY_NAME];
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int version;
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int fd;
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int i;
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fd = open(g_joystick_dev, O_RDONLY | O_NONBLOCK);
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if(fd < 0) {
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printf("Unable to open joystick dev file: %s, errno: %d\n",
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g_joystick_dev, errno);
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printf("Defaulting to mouse joystick\n");
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return;
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}
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strcpy(&joy_name[0], "Unknown Joystick");
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version = 0x800;
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ioctl(fd, JSIOCGNAME(MAX_JOY_NAME), &joy_name[0]);
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ioctl(fd, JSIOCGAXES, &g_joystick_num_axes);
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ioctl(fd, JSIOCGBUTTONS, &g_joystick_num_buttons);
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ioctl(fd, JSIOCGVERSION, &version);
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printf("Detected joystick: %s [%d axes, %d buttons vers: %08x]\n",
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joy_name, g_joystick_num_axes, g_joystick_num_buttons,
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version);
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g_joystick_native_type1 = 1;
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g_joystick_native_type2 = -1;
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g_joystick_native_fd = fd;
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for(i = 0; i < 4; i++) {
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g_paddle_val[i] = 32767;
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}
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g_paddle_buttons = 0xc;
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joystick_update(0.0);
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}
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/* joystick_update_linux() called from paddles.c. Update g_paddle_val[] */
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/* and g_paddle_buttons with current information */
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void
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joystick_update(double dcycs)
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{
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struct js_event js; /* the linux joystick event record */
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int mask;
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int val;
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int num;
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int type;
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int ret;
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int len;
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int i;
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/* suck up to 20 events, then give up */
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len = sizeof(struct js_event);
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for(i = 0; i < 20; i++) {
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ret = read(g_joystick_native_fd, &js, len);
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if(ret != len) {
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/* just get out */
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break;
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}
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type = js.type & ~JS_EVENT_INIT;
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val = js.value;
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num = js.number & 3; /* clamp to 0-3 */
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switch(type) {
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case JS_EVENT_BUTTON:
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mask = 1 << num;
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if(val) {
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val = mask;
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}
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g_paddle_buttons = (g_paddle_buttons & ~mask) | val;
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break;
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case JS_EVENT_AXIS:
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/* val is -32767 to +32767 */
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g_paddle_val[num] = val;
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break;
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}
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}
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// if(i > 0) {
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// Note from Dave Schmenk: paddle_update_trigger_dcycles(dcycs) always has to be called to keep the triggers current.
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paddle_update_trigger_dcycs(dcycs);
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// }
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}
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void
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joystick_update_buttons()
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{
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}
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#endif /* LINUX */
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#ifdef _WIN32
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# define JOYSTICK_DEFINED
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void
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joystick_init()
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{
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JOYINFO info;
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JOYCAPS joycap;
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MMRESULT ret1, ret2;
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int i;
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// Check that there is a joystick device
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if(joyGetNumDevs() <= 0) {
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printf("No joystick hardware detected\n");
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g_joystick_native_type1 = -1;
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g_joystick_native_type2 = -1;
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return;
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}
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g_joystick_native_type1 = -1;
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g_joystick_native_type2 = -1;
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// Check that at least joystick 1 or joystick 2 is available
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ret1 = joyGetPos(JOYSTICKID1, &info);
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ret2 = joyGetDevCaps(JOYSTICKID1, &joycap, sizeof(joycap));
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if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
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g_joystick_native_type1 = JOYSTICKID1;
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printf("Joystick #1 = %s\n", joycap.szPname);
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g_joystick_native_type = JOYSTICKID1;
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}
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ret1 = joyGetPos(JOYSTICKID2, &info);
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ret2 = joyGetDevCaps(JOYSTICKID2, &joycap, sizeof(joycap));
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if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
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g_joystick_native_type2 = JOYSTICKID2;
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printf("Joystick #2 = %s\n", joycap.szPname);
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if(g_joystick_native_type < 0) {
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g_joystick_native_type = JOYSTICKID2;
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}
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}
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if (g_joystick_native_type1<0 && g_joystick_native_type2 <0) {
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printf ("No joystick is attached\n");
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return;
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}
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for(i = 0; i < 4; i++) {
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g_paddle_val[i] = 32767;
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}
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g_paddle_buttons = 0xc;
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joystick_update(0.0);
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}
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void
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joystick_update(double dcycs)
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{
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JOYCAPS joycap;
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JOYINFO info;
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UINT id;
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MMRESULT ret1, ret2;
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id = g_joystick_native_type;
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ret1 = joyGetDevCaps(id, &joycap, sizeof(joycap));
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ret2 = joyGetPos(id, &info);
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if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
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/* val should be -32767 to +32767 */
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g_paddle_val[0] = -32767 + (info.wXpos - joycap.wXmin) * 65535 /
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(joycap.wXmax - joycap.wXmin);
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g_paddle_val[1] = -32767 + (info.wYpos - joycap.wYmin) * 65535 /
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(joycap.wYmax - joycap.wYmin);
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if(info.wButtons & JOY_BUTTON1) {
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g_paddle_buttons = g_paddle_buttons | 1;
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} else {
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g_paddle_buttons = g_paddle_buttons & (~1);
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}
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if(info.wButtons & JOY_BUTTON2) {
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g_paddle_buttons = g_paddle_buttons | 2;
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} else {
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g_paddle_buttons = g_paddle_buttons & (~2);
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}
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paddle_update_trigger_dcycs(dcycs);
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}
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}
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void
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joystick_update_buttons()
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{
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JOYINFOEX info;
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UINT id;
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id = g_joystick_native_type;
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info.dwSize = sizeof(JOYINFOEX);
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info.dwFlags = JOY_RETURNBUTTONS;
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if(joyGetPosEx(id, &info) == JOYERR_NOERROR) {
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if(info.dwButtons & JOY_BUTTON1) {
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g_paddle_buttons = g_paddle_buttons | 1;
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} else {
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g_paddle_buttons = g_paddle_buttons & (~1);
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}
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if(info.dwButtons & JOY_BUTTON2) {
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g_paddle_buttons = g_paddle_buttons | 2;
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} else {
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g_paddle_buttons = g_paddle_buttons & (~2);
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}
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}
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}
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#endif
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#ifndef JOYSTICK_DEFINED
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/* stubs for the routines */
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void
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joystick_init()
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{
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g_joystick_native_type1 = -1;
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g_joystick_native_type2 = -1;
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g_joystick_native_type = -1;
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}
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void
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joystick_update(double dcycs)
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{
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int i;
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for(i = 0; i < 4; i++) {
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g_paddle_val[i] = 32767;
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}
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g_paddle_buttons = 0xc;
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}
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void
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joystick_update_buttons()
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{
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}
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// OG
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void joystick_shut()
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{
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}
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#endif
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