+void *pl_prepare_screenshot(int *w, int *h, int *bpp)
+{
+ void *ret = plat_prepare_screenshot(w, h, bpp);
+ if (ret != NULL)
+ return ret;
+
+ *w = pl_vout_w;
+ *h = pl_vout_h;
+ *bpp = pl_vout_bpp;
+
+ return pl_vout_buf;
+}
+
+/* display/redering mode switcher */
+static int dispmode_default(void)
+{
+ pl_rearmed_cbs.gpu_neon.enhancement_enable = 0;
+ soft_filter = SOFT_FILTER_NONE;
+ snprintf(hud_msg, sizeof(hud_msg), "default mode");
+ return 1;
+}
+
+#ifdef BUILTIN_GPU_NEON
+static int dispmode_doubleres(void)
+{
+ if (!(pl_rearmed_cbs.gpu_caps & GPU_CAP_SUPPORTS_2X)
+ || !resolution_ok(psx_w * 2, psx_h * 2) || psx_bpp != 16)
+ return 0;
+
+ dispmode_default();
+ pl_rearmed_cbs.gpu_neon.enhancement_enable = 1;
+ snprintf(hud_msg, sizeof(hud_msg), "double resolution");
+ return 1;
+}
+#endif
+
+#ifdef __ARM_NEON__
+static int dispmode_scale2x(void)
+{
+ if (!resolution_ok(psx_w * 2, psx_h * 2) || psx_bpp != 16)
+ return 0;
+
+ dispmode_default();
+ soft_filter = SOFT_FILTER_SCALE2X;
+ snprintf(hud_msg, sizeof(hud_msg), "scale2x");
+ return 1;
+}
+
+static int dispmode_eagle2x(void)
+{
+ if (!resolution_ok(psx_w * 2, psx_h * 2) || psx_bpp != 16)
+ return 0;
+
+ dispmode_default();
+ soft_filter = SOFT_FILTER_EAGLE2X;
+ snprintf(hud_msg, sizeof(hud_msg), "eagle2x");
+ return 1;
+}
+#endif
+
+static int (*dispmode_switchers[])(void) = {
+ dispmode_default,
+#ifdef BUILTIN_GPU_NEON
+ dispmode_doubleres,
+#endif
+#ifdef __ARM_NEON__
+ dispmode_scale2x,
+ dispmode_eagle2x,
+#endif
+};
+
+static int dispmode_current;
+
+void pl_switch_dispmode(void)
+{
+ if (pl_rearmed_cbs.gpu_caps & GPU_CAP_OWNS_DISPLAY)
+ return;
+
+ while (1) {
+ dispmode_current++;
+ if (dispmode_current >=
+ sizeof(dispmode_switchers) / sizeof(dispmode_switchers[0]))
+ dispmode_current = 0;
+ if (dispmode_switchers[dispmode_current]())
+ break;
+ }
+}
+
+#ifndef MAEMO
+/* adjust circle-like analog inputs to better match
+ * more square-like analogs in PSX */
+static void update_analog_nub_adjust(int *x_, int *y_)
+{
+ #define d 16
+ static const int scale[] =
+ { 0 - d*2, 0 - d*2, 0 - d*2, 12 - d*2,
+ 30 - d*2, 60 - d*2, 75 - d*2, 60 - d*2, 60 - d*2 };
+ int x = abs(*x_);
+ int y = abs(*y_);
+ int scale_x = scale[y / 16];
+ int scale_y = scale[x / 16];
+
+ if (x) {
+ x += d + (x * scale_x >> 8);
+ if (*x_ < 0)
+ x = -x;
+ }
+ if (y) {
+ y += d + (y * scale_y >> 8);
+ if (*y_ < 0)
+ y = -y;
+ }
+
+ *x_ = x;
+ *y_ = y;
+ #undef d
+}
+
+static void update_analogs(void)
+{
+ int *nubp[2] = { in_analog_left[0], in_analog_right[0] };
+ int vals[2];
+ int i, a, v, ret;
+
+ for (i = 0; i < 2; i++)
+ {
+ if (in_adev[i] < 0)
+ continue;
+
+ for (a = 0; a < 2; a++) {
+ vals[a] = 0;
+
+ ret = in_update_analog(in_adev[i], in_adev_axis[i][a], &v);
+ if (ret == 0)
+ vals[a] = 128 * v / IN_ABS_RANGE;
+ }
+
+ if (in_adev_is_nublike[i])
+ update_analog_nub_adjust(&vals[0], &vals[1]);
+
+ for (a = 0; a < 2; a++) {
+ v = vals[a] + 127;
+ if (v < 0) v = 0;
+ else if (v > 255) v = 255;
+ nubp[i][a] = v;
+ }
+
+ }
+}
+
+static void update_input(void)
+{
+ int actions[IN_BINDTYPE_COUNT] = { 0, };
+ unsigned int emu_act;
+
+ in_update(actions);
+ if (in_type[0] == PSE_PAD_TYPE_ANALOGJOY || in_type[0] == PSE_PAD_TYPE_ANALOGPAD)
+ update_analogs();
+ emu_act = actions[IN_BINDTYPE_EMU];
+ in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
+
+ emu_act &= ~SACTION_GUN_MASK;
+ if (emu_act) {
+ int which = 0;
+ for (; !(emu_act & 1); emu_act >>= 1, which++)
+ ;
+ emu_act = which;
+ }
+ emu_set_action(emu_act);
+
+ in_keystate[0] = actions[IN_BINDTYPE_PLAYER12];
+
+ // fixme
+ //if (in_type[0] == PSE_PAD_TYPE_GUNCON && tsdev)
+ // pl_gun_ts_update(tsdev, xn, yn, in);
+ // in_analog_left[0][0] = xn
+}
+#else /* MAEMO */
+extern void update_input(void);
+#endif
+
+void pl_gun_byte2(int port, unsigned char byte)
+{
+}
+
+#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)
+
+/* called on every vsync */
+void pl_frame_limit(void)
+{
+ static struct timeval tv_old, tv_expect;
+ static int vsync_cnt_prev, drc_active_vsyncs;
+ struct timeval now;
+ int diff, usadj;
+
+ if (g_emu_resetting)
+ return;
+
+ 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);
+ pl_rearmed_cbs.vsps_cur = 0.0f;
+ if (0 < diff && diff < 2000000)
+ pl_rearmed_cbs.vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
+ vsync_cnt_prev = vsync_cnt;
+
+ if (g_opts & OPT_SHOWFPS)
+ pl_rearmed_cbs.flips_per_sec = pl_rearmed_cbs.flip_cnt;
+ pl_rearmed_cbs.flip_cnt = 0;
+ if (g_opts & OPT_SHOWCPU)
+ pl_rearmed_cbs.cpu_usage = get_cpu_ticks();
+
+ if (hud_new_msg > 0) {
+ hud_new_msg--;
+ if (hud_new_msg == 0)
+ hud_msg[0] = 0;
+ }
+ tv_old = now;
+ //new_dynarec_print_stats();
+ }
+#ifdef PCNT
+ static int ya_vsync_count;
+ if (++ya_vsync_count == PCNT_FRAMES) {
+ pcnt_print(pl_rearmed_cbs.vsps_cur);
+ ya_vsync_count = 0;
+ }
+#endif
+
+ // tv_expect uses usec*1024 units instead of usecs for better accuracy
+ tv_expect.tv_usec += frame_interval1024;
+ if (tv_expect.tv_usec >= (1000000 << 10)) {
+ tv_expect.tv_usec -= (1000000 << 10);
+ tv_expect.tv_sec++;
+ }
+ diff = (tv_expect.tv_sec - now.tv_sec) * 1000000 + (tv_expect.tv_usec >> 10) - now.tv_usec;
+
+ if (diff > MAX_LAG_FRAMES * frame_interval || diff < -MAX_LAG_FRAMES * frame_interval) {
+ //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, frame_interval);
+ tv_expect = now;
+ diff = 0;
+ // try to align with vsync
+ usadj = vsync_usec_time;
+ while (usadj < tv_expect.tv_usec - frame_interval)
+ usadj += frame_interval;
+ tv_expect.tv_usec = usadj << 10;
+ }
+
+ if (!(g_opts & OPT_NO_FRAMELIM) && diff > frame_interval) {
+ // yay for working usleep on pandora!
+ //printf("usleep %d\n", diff - frame_interval / 2);
+ usleep(diff - frame_interval);
+ }
+
+ if (pl_rearmed_cbs.frameskip) {
+ if (diff < -frame_interval)
+ pl_rearmed_cbs.fskip_advice = 1;
+ else if (diff >= 0)
+ pl_rearmed_cbs.fskip_advice = 0;
+
+ // recompilation is not that fast and may cause frame skip on
+ // loading screens and such, resulting in flicker or glitches
+ if (new_dynarec_did_compile) {
+ if (drc_active_vsyncs < 32)
+ pl_rearmed_cbs.fskip_advice = 0;
+ drc_active_vsyncs++;
+ }
+ else
+ drc_active_vsyncs = 0;
+ new_dynarec_did_compile = 0;
+ }
+
+ pcnt_start(PCNT_ALL);
+}
+
+void pl_timing_prepare(int is_pal_)
+{
+ pl_rearmed_cbs.fskip_advice = 0;
+ pl_rearmed_cbs.flips_per_sec = 0;
+ pl_rearmed_cbs.cpu_usage = 0;
+
+ is_pal = is_pal_;
+ frame_interval = is_pal ? 20000 : 16667;
+ frame_interval1024 = is_pal ? 20000*1024 : 17066667;
+
+ // used by P.E.Op.S. frameskip code
+ pl_rearmed_cbs.gpu_peops.fFrameRateHz = is_pal ? 50.0f : 59.94f;
+ pl_rearmed_cbs.gpu_peops.dwFrameRateTicks =
+ (100000*100 / (unsigned long)(pl_rearmed_cbs.gpu_peops.fFrameRateHz*100));
+}
+
+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;
+}
+
+static void *pl_mmap(unsigned int size);
+static void pl_munmap(void *ptr, unsigned int size);
+
+struct rearmed_cbs pl_rearmed_cbs = {
+ pl_get_layer_pos,
+ pl_vout_open,
+ pl_vout_set_mode,
+ pl_vout_flip,
+ pl_vout_close,
+
+ .mmap = pl_mmap,
+ .munmap = pl_munmap,
+ .pl_set_gpu_caps = pl_set_gpu_caps,
+ .gpu_state_change = gpu_state_change,
+};
+
+/* watchdog */
+static void *watchdog_thread(void *unused)
+{
+ int vsync_cnt_old = 0;
+ int seen_dead = 0;
+ int sleep_time = 5;
+
+#if !defined(NDEBUG) || defined(DRC_DBG)
+ // 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);
+}
+
+static void *pl_emu_mmap(unsigned long addr, size_t size, int is_fixed,
+ enum psxMapTag tag)
+{
+ return plat_mmap(addr, size, 0, is_fixed);
+}
+
+static void pl_emu_munmap(void *ptr, size_t size, enum psxMapTag tag)
+{
+ plat_munmap(ptr, size);
+}
+
+static void *pl_mmap(unsigned int size)
+{
+ return psxMapHook(0, size, 0, MAP_TAG_VRAM);
+}
+
+static void pl_munmap(void *ptr, unsigned int size)
+{
+ psxUnmapHook(ptr, size, MAP_TAG_VRAM);
+}
+
+void pl_init(void)
+{
+ extern unsigned int hSyncCount; // from psxcounters
+ extern unsigned int frame_counter;
+
+ psx_w = psx_h = pl_vout_w = pl_vout_h = 256;
+ psx_bpp = pl_vout_bpp = 16;
+
+ tsdev = pl_gun_ts_init();
+
+ pl_rearmed_cbs.gpu_hcnt = &hSyncCount;
+ pl_rearmed_cbs.gpu_frame_count = &frame_counter;
+
+ psxMapHook = pl_emu_mmap;
+ psxUnmapHook = pl_emu_munmap;
+}