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// Ripped Snes9X joystick code and made it Genesis friendly, with a few
// slight modifications. [PKH]
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "md.h"
#include "md-phil.h"
// Default setup for Gravis GamePad Pro 10 button controllers.
// Yellow ... A
// Green .... C
// Red ...... A
// Blue ..... B
// L1 ....... Y
// R1 ....... Z
// L2 ....... X
// R2 ....... X
// Start .... START :)
// Select ... MODE
// Mappings are configurable via dgenrc. Mappings are done from 0-16
// Standard 2 button joysticks will only have buttons 0 and 1. [PKH]
extern int js_map_button [2][16];
#ifdef LINUX_JOYSTICK_SUPPORT
#warning USING LINUX JOYSTICK
#include <linux/joystick.h>
int joypads[2] = {0};
int js_fd[2] = {-1, -1};
char *js_device [2] = {"/dev/js0", "/dev/js1"};
void md::init_joysticks() {
#ifdef JSIOCGVERSION
int version;
unsigned char axes, buttons;
if ((js_fd [0] = open (js_device [0], O_RDONLY | O_NONBLOCK)) < 0)
{
perror (js_device [0]);
return;
}
if (ioctl (js_fd [0], JSIOCGVERSION, &version))
{
puts("joystick: You need at least driver version 1.0 for joystick support");
close (js_fd [0]);
return;
}
js_fd [1] = open (js_device [1], O_RDONLY | O_NONBLOCK);
#ifdef JSIOCGNAME
char name [130];
bzero (name, 128);
if (ioctl (js_fd [0], JSIOCGNAME(128), name) > 0)
{
printf ("Using %s (%s) as pad1", name, js_device [0]);
if (js_fd [1] > 0)
{
ioctl (js_fd [1], JSIOCGNAME(128), name);
printf ("and %s (%s) as pad2", name, js_device [1]);
}
}
else
#endif // JSIOCGNAME
{
ioctl (js_fd [0], JSIOCGAXES, &axes);
ioctl (js_fd [0], JSIOCGBUTTONS, &buttons);
printf ("Using %d-axis %d-button joystick (%s) as pad1", axes, buttons, js_device [0]);
if (js_fd [1] > 0)
{
ioctl (js_fd [0], JSIOCGAXES, &axes);
ioctl (js_fd [0], JSIOCGBUTTONS, &buttons);
printf (" and %d-axis %d-button (%s) as pad2", axes, buttons, js_device [1]);
}
}
puts (".");
#endif // JSIOCGVERSION
}
void md::read_joysticks()
{
#ifdef JSIOCGVERSION
struct js_event js_ev;
int i;
for (i = 0; i < 2 && js_fd [i] >= 0; i++)
{
while (read (js_fd[i], &js_ev, sizeof (struct js_event)) == sizeof (struct js_event) )
{
switch (js_ev.type & ~JS_EVENT_INIT)
{
case JS_EVENT_AXIS:
if (js_ev.number == 0)
{
if(js_ev.value < -16384)
{
pad[i] &= ~MD_LEFT_MASK;
pad[i] |= MD_RIGHT_MASK;
break;
}
if (js_ev.value > 16384)
{
pad[i] |= MD_LEFT_MASK;
pad[i] &= ~MD_RIGHT_MASK;
break;
}
pad[i] |= MD_LEFT_MASK;
pad[i] |= MD_RIGHT_MASK;
break;
}
if (js_ev.number == 1)
{
if (js_ev.value < -16384)
{
pad[i] &= ~MD_UP_MASK;
pad[i] |= MD_DOWN_MASK;
break;
}
if (js_ev.value > 16384)
{
pad[i] |= MD_UP_MASK;
pad[i] &= ~MD_DOWN_MASK;
break;
}
pad[i] |= MD_UP_MASK;
pad[i] |= MD_DOWN_MASK;
break;
}
break;
case JS_EVENT_BUTTON:
if (js_ev.number > 15)
break;
if (js_ev.value)
pad[i] &= ~js_map_button [i][js_ev.number];
else
pad[i] |= js_map_button [i][js_ev.number];
break;
}
}
}
#endif // JSIOCGVERSION
}
#elif defined(SDL_JOYSTICK_SUPPORT)
#warning USING SDL JOYSTICK
#include <SDL.h>
#include <SDL_joystick.h>
static SDL_Joystick *js_handle[2] = { NULL, NULL };
void md::init_joysticks() {
// Initialize the joystick support
// Thanks to Cameron Moore <cameron@unbeatenpath.net>
if(SDL_Init(SDL_INIT_JOYSTICK) < 0)
{
fprintf(stderr, "joystick: Unable to initialize joystick system\n");
return;
}
// Open the first couple of joysticks, if possible
js_handle[0] = SDL_JoystickOpen(0);
js_handle[1] = SDL_JoystickOpen(1);
// If neither opened, quit
if(!(js_handle[0] || js_handle[1]))
{
fprintf(stderr, "joystick: Unable to open any joysticks\n");
return;
}
// Print the joystick names
printf("Using ");
if(js_handle[0]) printf("%s (#0) as pad1 ", SDL_JoystickName(0));
if(js_handle[0] && js_handle[1]) printf("and ");
if(js_handle[1]) printf("%s (#1) as pad2 ", SDL_JoystickName(1));
printf("\n");
// Enable joystick events
SDL_JoystickEventState(SDL_ENABLE);
}
// This does nothing; SDL joystick handling is in the main event loop in
// sdl/sdl.cpp
void md::read_joysticks()
{
//empty
}
#endif
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