+ struct timeval now;
+
+ pl_fbdev_buf = vout_fbdev_flip(layer_fb);
+ omap_enable_layer(1);
+
+ // try to align redraws to vsync
+ vout_fbdev_wait_vsync(layer_fb);
+ gettimeofday(&now, 0);
+ vsync_usec_time = now.tv_usec;
+ while (vsync_usec_time >= pl_frame_interval)
+ vsync_usec_time -= pl_frame_interval;
+
+ return 0;
+}
+
+void pl_fbdev_close(void)
+{
+ omap_enable_layer(0);
+}
+
+void *pl_prepare_screenshot(int *w, int *h, int *bpp)
+{
+ *w = pl_fbdev_w;
+ *h = pl_fbdev_h;
+ *bpp = pl_fbdev_bpp;
+
+ return pl_fbdev_buf;
+}
+
+static void update_input(void)
+{
+ int actions[IN_BINDTYPE_COUNT] = { 0, };
+ unsigned int emu_act;
+
+ in_update(actions);
+ if (in_type == PSE_PAD_TYPE_ANALOGPAD)
+ in_update_analogs();
+ emu_act = actions[IN_BINDTYPE_EMU];
+ if (emu_act) {
+ int which = 0;
+ for (; !(emu_act & 1); emu_act >>= 1, which++)
+ ;
+ emu_act = which;
+ }
+ emu_set_action(emu_act);
+
+ in_keystate = actions[IN_BINDTYPE_PLAYER12];
+
+#ifdef X11
+ extern int x11_update_keys(unsigned int *action);
+ in_keystate |= x11_update_keys(&emu_act);
+ emu_set_action(emu_act);
+#endif
+}
+
+#define MAX_LAG_FRAMES 3
+
+#define tvdiff(tv, tv_old) \
+ ((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
+// assumes us < 1000000
+#define tvadd(tv, us) { \
+ tv.tv_usec += us; \
+ if (tv.tv_usec >= 1000000) { \
+ tv.tv_usec -= 1000000; \
+ tv.tv_sec++; \
+ } \
+}
+
+/* called on every vsync */
+void pl_frame_limit(void)
+{
+ static struct timeval tv_old, tv_expect;
+ static int vsync_cnt_prev;
+ struct timeval now;
+ int diff, usadj;
+
+ vsync_cnt++;
+
+ /* doing input here because the pad is polled
+ * thousands of times per frame for some reason */
+ update_input();
+
+ pcnt_end(PCNT_ALL);
+ gettimeofday(&now, 0);
+
+ if (now.tv_sec != tv_old.tv_sec) {
+ diff = tvdiff(now, tv_old);
+ vsps_cur = 0.0f;
+ if (0 < diff && diff < 2000000)
+ vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
+ vsync_cnt_prev = vsync_cnt;
+ flips_per_sec = flip_cnt;
+ flip_cnt = 0;
+ tv_old = now;
+ if (g_opts & OPT_SHOWCPU)
+ tick_per_sec = get_cpu_ticks();
+
+ if (hud_new_msg > 0) {
+ hud_new_msg--;
+ if (hud_new_msg == 0)
+ hud_msg[0] = 0;
+ }
+ }
+#ifdef PCNT
+ static int ya_vsync_count;
+ if (++ya_vsync_count == PCNT_FRAMES) {
+ pcnt_print(vsps_cur);
+ ya_vsync_count = 0;
+ }
+#endif
+
+ tvadd(tv_expect, pl_frame_interval);
+ diff = tvdiff(tv_expect, now);
+ if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
+ //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
+ tv_expect = now;
+ diff = 0;
+ // try to align with vsync
+ usadj = vsync_usec_time;
+ while (usadj < tv_expect.tv_usec - pl_frame_interval)
+ usadj += pl_frame_interval;
+ tv_expect.tv_usec = usadj;
+ }
+
+ if (!(g_opts & OPT_NO_FRAMELIM) && diff > pl_frame_interval) {
+ // yay for working usleep on pandora!
+ //printf("usleep %d\n", diff - pl_frame_interval / 2);
+ usleep(diff - pl_frame_interval / 2);
+ }
+
+ if (pl_rearmed_cbs.frameskip) {
+ if (diff < -pl_frame_interval)
+ pl_rearmed_cbs.fskip_advice = 1;
+ else if (diff >= 0)
+ pl_rearmed_cbs.fskip_advice = 0;
+ }
+
+ pcnt_start(PCNT_ALL);
+}
+
+static void pl_text_out16_(int x, int y, const char *text)
+{
+ int i, l, len = strlen(text), w = pl_fbdev_w;
+ unsigned short *screen = (unsigned short *)pl_fbdev_buf + x + y * w;
+ unsigned short val = 0xffff;
+
+ for (i = 0; i < len; i++, screen += 8)
+ {
+ for (l = 0; l < 8; l++)
+ {
+ unsigned char fd = fontdata8x8[text[i] * 8 + l];
+ unsigned short *s = screen + l * w;
+ if (fd&0x80) s[0] = val;
+ if (fd&0x40) s[1] = val;
+ if (fd&0x20) s[2] = val;
+ if (fd&0x10) s[3] = val;
+ if (fd&0x08) s[4] = val;
+ if (fd&0x04) s[5] = val;
+ if (fd&0x02) s[6] = val;
+ if (fd&0x01) s[7] = val;
+ }
+ }
+}
+
+void pl_text_out16(int x, int y, const char *texto, ...)
+{
+ va_list args;
+ char buffer[256];
+
+ va_start(args, texto);
+ vsnprintf(buffer, sizeof(buffer), texto, args);
+ va_end(args);
+
+ pl_text_out16_(x, y, buffer);
+}
+
+static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
+{
+ *x = g_layer_x;
+ *y = g_layer_y;
+ *w = g_layer_w;
+ *h = g_layer_h;
+}
+
+struct rearmed_cbs pl_rearmed_cbs = {
+ pl_get_layer_pos,
+ pl_fbdev_open,
+ pl_fbdev_set_mode,
+ pl_fbdev_flip,
+ pl_fbdev_close,
+};
+
+/* watchdog */
+static void *watchdog_thread(void *unused)
+{
+ int vsync_cnt_old = 0;
+ int seen_dead = 0;
+ int sleep_time = 5;
+
+#ifndef NDEBUG
+ // don't interfere with debug
+ return NULL;
+#endif
+ while (1)
+ {
+ sleep(sleep_time);
+
+ if (stop) {
+ seen_dead = 0;
+ sleep_time = 5;
+ continue;
+ }
+ if (vsync_cnt != vsync_cnt_old) {
+ vsync_cnt_old = vsync_cnt;
+ seen_dead = 0;
+ sleep_time = 2;
+ continue;
+ }
+
+ seen_dead++;
+ sleep_time = 1;
+ if (seen_dead > 1)
+ fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
+ if (seen_dead > 4) {
+ fprintf(stderr, "watchdog: lockup detected, aborting\n");
+ // we can't do any cleanup here really, the main thread is
+ // likely touching resources and would crash anyway
+ abort();
+ }
+ }
+}
+
+void pl_start_watchdog(void)
+{
+ pthread_attr_t attr;
+ pthread_t tid;
+ int ret;
+
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
+ if (ret != 0)
+ fprintf(stderr, "could not start watchdog: %d\n", ret);