gsplus/src/joystick_driver.c

350 lines
9.2 KiB
C

/*
GSPLUS - Advanced Apple IIGS Emulator Environment
Based on the KEGS emulator written by Kent Dickey
See COPYRIGHT.txt for Copyright information
See LICENSE.txt for license (GPL v2)
*/
#include "defc.h"
#include "glog.h"
#ifdef __linux__
# include <linux/joystick.h>
# include <sys/time.h>
#endif
#ifdef _WIN32
# include <windows.h>
# include <mmsystem.h>
# include <time.h>
#endif
#ifdef HAVE_SDL
# include "SDL.h"
//@todo: multiple joysticks/more buttons/button config
//static SDL_Joystick *joy0, *joy1;
SDL_Joystick *gGameController = NULL;
#endif
extern int g_joystick_native_type1; /* in paddles.c */
extern int g_joystick_native_type2; /* in paddles.c */
extern int g_joystick_native_type; /* in paddles.c */
extern int g_joystick_type;
extern int g_paddle_buttons;
extern int g_paddle_val[];
const char *g_joystick_dev = "/dev/input/js0"; /* default joystick dev file */
#define MAX_JOY_NAME 128
int g_joystick_native_fd = -1;
int g_joystick_num_axes = 0;
int g_joystick_num_buttons = 0;
int g_joystick_number = 0; // SDL2
int g_joystick_x_axis = 0; // SDL2
int g_joystick_y_axis = 1; // SDL2
int g_joystick_button_0 = 0; // SDL2
int g_joystick_button_1 = 1; // SDL2
int g_joystick_x2_axis = 2; // SDL2
int g_joystick_y2_axis = 3; // SDL2
int g_joystick_button_2 = 2; // SDL2
int g_joystick_button_3 = 3; // SDL2
#define JOY2SUPPORT
#if defined(HAVE_SDL) && !defined(JOYSTICK_DEFINED)
# define JOYSTICK_DEFINED
void joystick_init() {
int i;
if( SDL_Init( SDL_INIT_JOYSTICK ) < 0 ) {
glogf( "SDL could not initialize joystick! SDL Error: %s", SDL_GetError() );
} else {
glog("SDL2 joystick initialized");
}
if (SDL_NumJoysticks()<1) {
glog("No joysticks detected");
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
} else {
// @todo: make controller configurable
// @todo: add multiple controller support
gGameController = SDL_JoystickOpen( g_joystick_number );
if( gGameController == NULL ) {
glogf( "Warning: Unable to open game controller! SDL Error: %s", SDL_GetError() );
}
}
g_joystick_native_type = 2;
g_joystick_native_type1 = 2;
g_joystick_native_type2 = -1;
for(i = 0; i < 4; i++) {
g_paddle_val[i] = 180;
}
g_joystick_type = JOYSTICK_TYPE_NATIVE_1;
SDL_JoystickUpdate();
joystick_update(0.0);
}
void joystick_update(double dcycs) {
if (gGameController) {
SDL_JoystickUpdate();
g_paddle_val[0] = (int)SDL_JoystickGetAxis(gGameController, g_joystick_x_axis); // default is 0
g_paddle_val[1] = (int)SDL_JoystickGetAxis(gGameController, g_joystick_y_axis); // default is 1
g_paddle_val[2] = (int)SDL_JoystickGetAxis(gGameController, g_joystick_x2_axis); // default is 2
g_paddle_val[3] = (int)SDL_JoystickGetAxis(gGameController, g_joystick_y2_axis); // default is 3
if (SDL_JoystickGetButton(gGameController, g_joystick_button_0)) {
g_paddle_buttons = g_paddle_buttons | 1;
} else {
g_paddle_buttons = g_paddle_buttons & (~1);
}
if (SDL_JoystickGetButton(gGameController, g_joystick_button_1)) {
g_paddle_buttons = g_paddle_buttons | 2;
} else {
g_paddle_buttons = g_paddle_buttons & (~2);
}
if (SDL_JoystickGetButton(gGameController, g_joystick_button_2)) {
g_paddle_buttons = g_paddle_buttons | 4;
} else {
g_paddle_buttons = g_paddle_buttons & (~4);
}
if (SDL_JoystickGetButton(gGameController, g_joystick_button_3)) {
g_paddle_buttons = g_paddle_buttons | 8;
} else {
g_paddle_buttons = g_paddle_buttons & (~8);
}
paddle_update_trigger_dcycs(dcycs);
}
}
void joystick_update_buttons() {
}
void joystick_shut() {
SDL_JoystickClose( gGameController );
gGameController = NULL;
}
#endif
#if defined(__linux__) && !defined(JOYSTICK_DEFINED)
# define JOYSTICK_DEFINED
void joystick_init() {
char joy_name[MAX_JOY_NAME];
int version;
int fd;
int i;
fd = open(g_joystick_dev, O_RDONLY | O_NONBLOCK);
if(fd < 0) {
printf("Unable to open joystick dev file: %s, errno: %d\n",
g_joystick_dev, errno);
printf("Defaulting to mouse joystick\n");
return;
}
strcpy(&joy_name[0], "Unknown Joystick");
version = 0x800;
ioctl(fd, JSIOCGNAME(MAX_JOY_NAME), &joy_name[0]);
ioctl(fd, JSIOCGAXES, &g_joystick_num_axes);
ioctl(fd, JSIOCGBUTTONS, &g_joystick_num_buttons);
ioctl(fd, JSIOCGVERSION, &version);
printf("Detected joystick: %s [%d axes, %d buttons vers: %08x]\n",
joy_name, g_joystick_num_axes, g_joystick_num_buttons,
version);
g_joystick_native_type1 = 1;
g_joystick_native_type2 = -1;
g_joystick_native_fd = fd;
for(i = 0; i < 4; i++) {
g_paddle_val[i] = 32767;
}
g_paddle_buttons = 0xc;
joystick_update(0.0);
}
/* joystick_update_linux() called from paddles.c. Update g_paddle_val[] */
/* and g_paddle_buttons with current information */
void joystick_update(double dcycs) {
struct js_event js; /* the linux joystick event record */
int mask;
int val;
int num;
int type;
int ret;
int len;
int i;
/* suck up to 20 events, then give up */
len = sizeof(struct js_event);
for(i = 0; i < 20; i++) {
ret = read(g_joystick_native_fd, &js, len);
if(ret != len) {
/* just get out */
break;
}
type = js.type & ~JS_EVENT_INIT;
val = js.value;
num = js.number & 3; /* clamp to 0-3 */
switch(type) {
case JS_EVENT_BUTTON:
mask = 1 << num;
if(val) {
val = mask;
}
g_paddle_buttons = (g_paddle_buttons & ~mask) | val;
break;
case JS_EVENT_AXIS:
/* val is -32767 to +32767 */
g_paddle_val[num] = val;
break;
}
}
// if(i > 0) {
// Note from Dave Schmenk: paddle_update_trigger_dcycles(dcycs) always has to be called to keep the triggers current.
paddle_update_trigger_dcycs(dcycs);
// }
}
void joystick_update_buttons() {
}
#endif /* LINUX */
#if defined(_WIN32) && !defined(JOYSTICK_DEFINED)
# define JOYSTICK_DEFINED
void joystick_init() {
JOYINFO info;
JOYCAPS joycap;
MMRESULT ret1, ret2;
int i;
// Check that there is a joystick device
if(joyGetNumDevs() <= 0) {
glog("No joystick hardware detected");
g_joystick_native_type1 = -1;
g_joystick_native_type2 = -1;
return;
}
g_joystick_native_type1 = -1;
g_joystick_native_type2 = -1;
// Check that at least joystick 1 or joystick 2 is available
ret1 = joyGetPos(JOYSTICKID1, &info);
ret2 = joyGetDevCaps(JOYSTICKID1, &joycap, sizeof(joycap));
if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
g_joystick_native_type1 = JOYSTICKID1;
printf("Joystick #1 = %s\n", joycap.szPname);
g_joystick_native_type = JOYSTICKID1;
}
ret1 = joyGetPos(JOYSTICKID2, &info);
ret2 = joyGetDevCaps(JOYSTICKID2, &joycap, sizeof(joycap));
if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
g_joystick_native_type2 = JOYSTICKID2;
printf("Joystick #2 = %s\n", joycap.szPname);
if(g_joystick_native_type < 0) {
g_joystick_native_type = JOYSTICKID2;
}
}
if (g_joystick_native_type1<0 && g_joystick_native_type2 <0) {
glog("No joystick is attached");
return;
}
for(i = 0; i < 4; i++) {
g_paddle_val[i] = 32767;
}
g_paddle_buttons = 0xc;
joystick_update(0.0);
}
void joystick_update(double dcycs) {
JOYCAPS joycap;
JOYINFO info;
UINT id;
MMRESULT ret1, ret2;
id = g_joystick_native_type;
ret1 = joyGetDevCaps(id, &joycap, sizeof(joycap));
ret2 = joyGetPos(id, &info);
if(ret1 == JOYERR_NOERROR && ret2 == JOYERR_NOERROR) {
g_paddle_val[0] = (info.wXpos - joycap.wXmin) * 32768 /
(joycap.wXmax - joycap.wXmin);
g_paddle_val[1] = (info.wYpos - joycap.wYmin) * 32768 /
(joycap.wYmax - joycap.wYmin);
if(info.wButtons & JOY_BUTTON1) {
g_paddle_buttons = g_paddle_buttons | 1;
} else {
g_paddle_buttons = g_paddle_buttons & (~1);
}
if(info.wButtons & JOY_BUTTON2) {
g_paddle_buttons = g_paddle_buttons | 2;
} else {
g_paddle_buttons = g_paddle_buttons & (~2);
}
paddle_update_trigger_dcycs(dcycs);
}
}
void joystick_update_buttons() {
JOYINFOEX info;
UINT id;
id = g_joystick_native_type;
info.dwSize = sizeof(JOYINFOEX);
info.dwFlags = JOY_RETURNBUTTONS;
if(joyGetPosEx(id, &info) == JOYERR_NOERROR) {
if(info.dwButtons & JOY_BUTTON1) {
g_paddle_buttons = g_paddle_buttons | 1;
} else {
g_paddle_buttons = g_paddle_buttons & (~1);
}
if(info.dwButtons & JOY_BUTTON2) {
g_paddle_buttons = g_paddle_buttons | 2;
} else {
g_paddle_buttons = g_paddle_buttons & (~2);
}
}
}
#endif
#ifndef JOYSTICK_DEFINED
/* stubs for the routines */
void joystick_init() {
g_joystick_native_type1 = -1;
g_joystick_native_type2 = -1;
g_joystick_native_type = -1;
}
void joystick_update(double dcycs) {
int i;
for(i = 0; i < 4; i++) {
g_paddle_val[i] = 32767;
}
g_paddle_buttons = 0xc;
}
void joystick_update_buttons() {
}
void joystick_shut() {
}
#endif