sm64pc/src/pc/controller/controller_gamebridge.c

86 lines
1.8 KiB
C

#include <ctype.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ultra64.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "controller_api.h"
#include "../configfile.h"
static FILE *vblank;
static FILE *input;
#define vblank_fname "vblank"
#define input_fname "input"
#define ok "OK\n"
#define bye "BYE"
static void gamebridge_close(void) {
fwrite(bye, 1, strlen(bye), vblank);
}
static void gamebridge_init(void) {
if (!configGameBridge) {
return;
}
printf("[gamebridge] starting...\n");
fflush(stdout);
unlink(vblank_fname);
unlink(input_fname);
int result;
result = mkfifo(vblank_fname, S_IRUSR|S_IWUSR);
if (result < 0) {
perror("mkfifo "vblank_fname);
assert(result < 0);
}
result = mkfifo(input_fname, S_IRUSR| S_IWUSR);
if (result < 0) {
perror("mkfifo "input_fname);
assert(result < 0);
}
vblank = fopen(vblank_fname, "w+");
input = fopen(input_fname, "rb+");
assert(vblank);
assert(input);
setvbuf(vblank, NULL, _IONBF, 0);
setvbuf(input, NULL, _IONBF, 0);
printf("[gamebridge] starting rust daemon\n");
fflush(stdout);
system("./target/debug/gamebridge &");
atexit(gamebridge_close);
}
static void gamebridge_read(OSContPad *pad) {
if (!configGameBridge) {
return;
}
printf("[gamebridge] waiting for input\n");
fwrite(ok, 1, strlen(ok), vblank);
uint8_t bytes[4] = {0};
fread(bytes, 1, 4, input);
pad->button = (bytes[0] << 8) | bytes[1];
pad->stick_x = bytes[2];
pad->stick_y = bytes[3];
printf("[gamebridge] %02x%02x %02x%02x\n", bytes[0], bytes[1], bytes[2], bytes[3]);
fflush(stdout);
}
struct ControllerAPI controller_gamebridge = {
gamebridge_init,
gamebridge_read
};