unset ld env before running command

[ginge.git] / loader / host.c

diff --git a/loader/host.c b/loader/host.c
index fc7a829..0ac1de4 100644 (file)
--- a/loader/host.c
+++ b/loader/host.c
@@ -1,13 +1,28 @@
-// vim:shiftwidth=2:expandtab
-
+/*
+ * GINGE - GINGE Is Not Gp2x Emulator
+ * (C) notaz, 2010-2011,2015
+ *
+ * This work is licensed under the MAME license, see COPYING file for details.
+ */
 #define _GNU_SOURCE 1 // for plat.c
 #include <stdio.h>
+#include <stdlib.h>
 #include <stdarg.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/input.h>
+
+#include "../common/libpicofe/input.h"
+#include "../common/libpicofe/linux/in_evdev.h"
+#include "../common/host_fb.h"
 
 #include "header.h"
 #include "realfuncs.h"
 
-#define IN_EVDEV
+// must be affected by realfuncs.h
 #include "../common/libpicofe/input.c"
 #include "../common/libpicofe/linux/plat.c"
 #include "../common/libpicofe/linux/in_evdev.c"
@@ -18,13 +33,87 @@
 #include "host_wiz.c"
 #endif
 
-// for plat.c
 char **g_argv;
+static int ts_fd = -1;
+
+/* touscreen. Could just use tsblib, but it's LGPL... */
+static int tsc[7];
+
+static int host_ts_init(void)
+{
+  static const char name_def[] = "/dev/input/touchscreen0";
+  const char *name;
+  FILE *f;
+  int ret;
+
+  f = fopen("/etc/pointercal", "r");
+  if (f == NULL) {
+    perror("fopen pointercal");
+    return -1;
+  }
+  ret = fscanf(f, "%d %d %d %d %d %d %d", &tsc[0], &tsc[1],
+               &tsc[2], &tsc[3], &tsc[4], &tsc[5], &tsc[6]);
+  fclose(f);
+  if (ret != 7) {
+    fprintf(stderr, "could not parse pointercal\n");
+    return -1;
+  }
+
+  name = getenv("TSLIB_TSDEVICE");
+  if (name == NULL)
+    name = name_def;
+  ts_fd = open(name, O_RDONLY | O_NONBLOCK);
+  if (ts_fd == -1) {
+    fprintf(stderr, "open %s", name);
+    perror("");
+    return -1;
+  }
+  return 0;
+}
+
+// returns ranges 0-1023
+int host_read_ts(int *pressure, int *x1024, int *y1024)
+{
+  static int raw_x, raw_y, raw_p;
+  struct input_event ev;
+  ssize_t ret;
+
+  if (ts_fd == -1)
+    return -1;
+
+  for (;;) {
+    errno = 0;
+    ret = read(ts_fd, &ev, sizeof(ev));
+    if (ret != sizeof(ev)) {
+      if (errno == EAGAIN)
+        break;
+      perror("ts read");
+      return -1;
+    }
+    if (ev.type == EV_ABS) {
+      switch (ev.code) {
+      case ABS_X: raw_x = ev.value; break;
+      case ABS_Y: raw_y = ev.value; break;
+      case ABS_PRESSURE: raw_p = ev.value; break;
+      }
+    }
+  }
+
+  *pressure = raw_p;
+  *x1024 = (tsc[0] * raw_x + tsc[1] * raw_y + tsc[2]) / tsc[6];
+  *y1024 = (tsc[3] * raw_x + tsc[4] * raw_y + tsc[5]) / tsc[6];
+
+  host_video_normalize_ts(x1024, y1024);
+
+  return 0;
+}
 
 int host_init(void)
 {
   in_init();
+  host_init_input();
   in_probe();
+  host_ts_init();
 
   return 0;
 }
@@ -39,13 +128,26 @@ int host_read_btns(void)
   return actions[IN_BINDTYPE_PLAYER12];
 }
 
-void host_forced_exit(void)
+void host_forced_exit(int status)
 {
   // exit() might not be enough because loader and app data is out of sync,
   // and other threads (which are really processes on this old glibc used)
   // might not exit properly.
-  system("killall ginge_sloader");
-  usleep(300000);
-  system("killall -9 ginge_sloader");
-  exit(1);
+  char cmd[64];
+
+  printf("forced exit...\n");
+
+  if (g_argv != NULL) {
+    unsetenv("LD_PRELOAD");
+    unsetenv("LD_LIBRARY_PATH");
+
+    snprintf(cmd, sizeof(cmd), "killall %s", g_argv[0]);
+    system(cmd);
+    usleep(300000);
+    snprintf(cmd, sizeof(cmd), "killall -9 %s", g_argv[0]);
+    system(cmd);
+  }
+  exit(status);
 }
+
+// vim:shiftwidth=2:expandtab