[pcsx_rearmed.git] / frontend / plugin_lib.c

/*
 * (C) notaz, 2010-2011
 *
 * This work is licensed under the terms of the GNU GPLv2 or later.
 * See the COPYING file in the top-level directory.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdint.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <pthread.h>

#include "plugin_lib.h"
#include "linux/fbdev.h"
#include "common/fonts.h"
#include "common/input.h"
#include "omap.h"
#include "menu.h"
#include "main.h"
#include "pcnt.h"
#include "pl_gun_ts.h"
#include "../libpcsxcore/new_dynarec/new_dynarec.h"
#include "../libpcsxcore/psemu_plugin_defs.h"

int in_type1, in_type2;
int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
int in_keystate, in_state_gun;
static void *ts;
void *pl_vout_buf;
static int pl_vout_w, pl_vout_h, pl_vout_bpp;
static int flip_cnt, vsync_cnt, flips_per_sec, tick_per_sec;
static float vsps_cur;
static int frame_interval, frame_interval1024, vsync_usec_time;


static __attribute__((noinline)) int get_cpu_ticks(void)
{
	static unsigned long last_utime;
	static int fd;
	unsigned long utime, ret;
	char buf[128];

	if (fd == 0)
		fd = open("/proc/self/stat", O_RDONLY);
	lseek(fd, 0, SEEK_SET);
	buf[0] = 0;
	read(fd, buf, sizeof(buf));
	buf[sizeof(buf) - 1] = 0;

	sscanf(buf, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu", &utime);
	ret = utime - last_utime;
	last_utime = utime;
	return ret;
}

static void print_hud(void)
{
	if (pl_vout_bpp == 16)
		pl_text_out16(2, pl_vout_h - 10, "%s", hud_msg);
}

static void print_fps(void)
{
	if (pl_vout_bpp == 16)
		pl_text_out16(2, pl_vout_h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
}

static void print_cpu_usage(void)
{
	if (pl_vout_bpp == 16)
		pl_text_out16(pl_vout_w - 28, pl_vout_h - 10, "%3d", tick_per_sec);
}

// draw 192x8 status of 24 sound channels
static __attribute__((noinline)) void draw_active_chans(void)
{
	extern void spu_get_debug_info(int *chans_out, int *fmod_chans_out, int *noise_chans_out); // hack
	int live_chans, fmod_chans, noise_chans;

	static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
	unsigned short *dest = (unsigned short *)pl_vout_buf +
		pl_vout_w * (pl_vout_h - 10) + pl_vout_w / 2 - 192/2;
	unsigned short *d, p;
	int c, x, y;

	if (pl_vout_bpp != 16)
		return;

	spu_get_debug_info(&live_chans, &fmod_chans, &noise_chans);

	for (c = 0; c < 24; c++) {
		d = dest + c * 8;
		p = !(live_chans & (1<<c)) ? 0 :
		     (fmod_chans & (1<<c)) ? 0xf000 :
		     (noise_chans & (1<<c)) ? 0x001f :
		     colors[c & 1];
		for (y = 0; y < 8; y++, d += pl_vout_w)
			for (x = 0; x < 8; x++)
				d[x] = p;
	}
}

static void *pl_vout_set_mode(int w, int h, int bpp)
{
	// special h handling, Wipeout likes to change it by 1-6
	h = (h + 7) & ~7;

	if (w == pl_vout_w && h == pl_vout_h && bpp == pl_vout_bpp)
		return pl_vout_buf;

	pl_vout_w = w;
	pl_vout_h = h;
	pl_vout_bpp = bpp;

#if defined(VOUT_FBDEV)
	vout_fbdev_clear(layer_fb);
	pl_vout_buf = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
#elif defined(MAEMO)
	extern void *hildon_set_mode(int w, int h);
	pl_vout_buf = hildon_set_mode(w, h);
#endif

	if (pl_vout_buf == NULL)
		fprintf(stderr, "failed to set mode\n");

	// menu decides on layer size, we commit it
	menu_notify_mode_change(w, h, bpp);
	omap_enable_layer(1);

	return pl_vout_buf;
}

static void *pl_vout_flip(void)
{
	flip_cnt++;

	if (pl_vout_buf != NULL) {
		if (g_opts & OPT_SHOWSPU)
			draw_active_chans();

		if (hud_msg[0] != 0)
			print_hud();
		else if (g_opts & OPT_SHOWFPS)
			print_fps();

		if (g_opts & OPT_SHOWCPU)
			print_cpu_usage();
	}

	// let's flip now
#if defined(VOUT_FBDEV)
	pl_vout_buf = vout_fbdev_flip(layer_fb);
#elif defined(MAEMO)
	extern void *hildon_flip(void);
	pl_vout_buf = hildon_flip();
#endif
	return pl_vout_buf;
}

static int pl_vout_open(void)
{
	struct timeval now;

	omap_enable_layer(1);
#if defined(VOUT_FBDEV)
	pl_vout_buf = vout_fbdev_flip(layer_fb);

	// try to align redraws to vsync
	vout_fbdev_wait_vsync(layer_fb);
#elif defined(MAEMO)
	extern void *hildon_flip(void);
	pl_vout_buf = hildon_flip();
#endif

	gettimeofday(&now, 0);
	vsync_usec_time = now.tv_usec;
	while (vsync_usec_time >= frame_interval)
		vsync_usec_time -= frame_interval;

	return 0;
}

static void pl_vout_close(void)
{
	omap_enable_layer(0);
}

void *pl_prepare_screenshot(int *w, int *h, int *bpp)
{
	*w = pl_vout_w;
	*h = pl_vout_h;
	*bpp = pl_vout_bpp;

	return pl_vout_buf;
}

static void update_input(void)
{
#ifndef MAEMO
	int actions[IN_BINDTYPE_COUNT] = { 0, };
	unsigned int emu_act;

	in_update(actions);
	if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
		in_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 = actions[IN_BINDTYPE_PLAYER12];
#endif
#ifdef X11
	extern int x11_update_keys(unsigned int *action);
	in_keystate |= x11_update_keys(&emu_act);
	emu_set_action(emu_act);
#endif
}

void pl_update_gun(int *xn, int *xres, int *y, int *in)
{
	if (ts)
		pl_gun_ts_update(ts, xn, y, in);

	*xres = pl_vout_w;
	*y = *y * pl_vout_h >> 10;
}

#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;
	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

	// 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;
	}

	pcnt_start(PCNT_ALL);
}

void pl_timing_prepare(int is_pal)
{
	pl_rearmed_cbs.fskip_advice = 0;

	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_text_out16_(int x, int y, const char *text)
{
	int i, l, len = strlen(text), w = pl_vout_w;
	unsigned short *screen = (unsigned short *)pl_vout_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_vout_open,
	pl_vout_set_mode,
	pl_vout_flip,
	pl_vout_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);
}

void pl_init(void)
{
	ts = pl_gun_ts_init();
}
Commit	Line	Data
	1	/*
	2	* (C) notaz, 2010-2011
	3	*
	4	* This work is licensed under the terms of the GNU GPLv2 or later.
	5	* See the COPYING file in the top-level directory.
	6	*/
	7
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <string.h>
	11	#include <stdarg.h>
	12	#include <stdint.h>
	13	#include <sys/time.h>
	14	#include <sys/types.h>
	15	#include <sys/stat.h>
	16	#include <fcntl.h>
	17	#include <unistd.h>
	18	#include <pthread.h>
	19
	20	#include "plugin_lib.h"
	21	#include "linux/fbdev.h"
	22	#include "common/fonts.h"
	23	#include "common/input.h"
	24	#include "omap.h"
	25	#include "menu.h"
	26	#include "main.h"
	27	#include "pcnt.h"
	28	#include "pl_gun_ts.h"
	29	#include "../libpcsxcore/new_dynarec/new_dynarec.h"
	30	#include "../libpcsxcore/psemu_plugin_defs.h"
	31
	32	int in_type1, in_type2;
	33	int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
	34	int in_keystate, in_state_gun;
	35	static void *ts;
	36	void *pl_vout_buf;
	37	static int pl_vout_w, pl_vout_h, pl_vout_bpp;
	38	static int flip_cnt, vsync_cnt, flips_per_sec, tick_per_sec;
	39	static float vsps_cur;
	40	static int frame_interval, frame_interval1024, vsync_usec_time;
	41
	42
	43	static __attribute__((noinline)) int get_cpu_ticks(void)
	44	{
	45	static unsigned long last_utime;
	46	static int fd;
	47	unsigned long utime, ret;
	48	char buf[128];
	49
	50	if (fd == 0)
	51	fd = open("/proc/self/stat", O_RDONLY);
	52	lseek(fd, 0, SEEK_SET);
	53	buf[0] = 0;
	54	read(fd, buf, sizeof(buf));
	55	buf[sizeof(buf) - 1] = 0;
	56
	57	sscanf(buf, "%d %s %c %d %d %d %d %d %u %u %u %u %*u %lu", &utime);
	58	ret = utime - last_utime;
	59	last_utime = utime;
	60	return ret;
	61	}
	62
	63	static void print_hud(void)
	64	{
	65	if (pl_vout_bpp == 16)
	66	pl_text_out16(2, pl_vout_h - 10, "%s", hud_msg);
	67	}
	68
	69	static void print_fps(void)
	70	{
	71	if (pl_vout_bpp == 16)
	72	pl_text_out16(2, pl_vout_h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
	73	}
	74
	75	static void print_cpu_usage(void)
	76	{
	77	if (pl_vout_bpp == 16)
	78	pl_text_out16(pl_vout_w - 28, pl_vout_h - 10, "%3d", tick_per_sec);
	79	}
	80
	81	// draw 192x8 status of 24 sound channels
	82	static __attribute__((noinline)) void draw_active_chans(void)
	83	{
	84	extern void spu_get_debug_info(int chans_out, int fmod_chans_out, int *noise_chans_out); // hack
	85	int live_chans, fmod_chans, noise_chans;
	86
	87	static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
	88	unsigned short dest = (unsigned short )pl_vout_buf +
	89	pl_vout_w * (pl_vout_h - 10) + pl_vout_w / 2 - 192/2;
	90	unsigned short *d, p;
	91	int c, x, y;
	92
	93	if (pl_vout_bpp != 16)
	94	return;
	95
	96	spu_get_debug_info(&live_chans, &fmod_chans, &noise_chans);
	97
	98	for (c = 0; c < 24; c++) {
	99	d = dest + c * 8;
	100	p = !(live_chans & (1<<c)) ? 0 :
	101	(fmod_chans & (1<<c)) ? 0xf000 :
	102	(noise_chans & (1<<c)) ? 0x001f :
	103	colors[c & 1];
	104	for (y = 0; y < 8; y++, d += pl_vout_w)
	105	for (x = 0; x < 8; x++)
	106	d[x] = p;
	107	}
	108	}
	109
	110	static void *pl_vout_set_mode(int w, int h, int bpp)
	111	{
	112	// special h handling, Wipeout likes to change it by 1-6
	113	h = (h + 7) & ~7;
	114
	115	if (w == pl_vout_w && h == pl_vout_h && bpp == pl_vout_bpp)
	116	return pl_vout_buf;
	117
	118	pl_vout_w = w;
	119	pl_vout_h = h;
	120	pl_vout_bpp = bpp;
	121
	122	#if defined(VOUT_FBDEV)
	123	vout_fbdev_clear(layer_fb);
	124	pl_vout_buf = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
	125	#elif defined(MAEMO)
	126	extern void *hildon_set_mode(int w, int h);
	127	pl_vout_buf = hildon_set_mode(w, h);
	128	#endif
	129
	130	if (pl_vout_buf == NULL)
	131	fprintf(stderr, "failed to set mode\n");
	132
	133	// menu decides on layer size, we commit it
	134	menu_notify_mode_change(w, h, bpp);
	135	omap_enable_layer(1);
	136
	137	return pl_vout_buf;
	138	}
	139
	140	static void *pl_vout_flip(void)
	141	{
	142	flip_cnt++;
	143
	144	if (pl_vout_buf != NULL) {
	145	if (g_opts & OPT_SHOWSPU)
	146	draw_active_chans();
	147
	148	if (hud_msg[0] != 0)
	149	print_hud();
	150	else if (g_opts & OPT_SHOWFPS)
	151	print_fps();
	152
	153	if (g_opts & OPT_SHOWCPU)
	154	print_cpu_usage();
	155	}
	156
	157	// let's flip now
	158	#if defined(VOUT_FBDEV)
	159	pl_vout_buf = vout_fbdev_flip(layer_fb);
	160	#elif defined(MAEMO)
	161	extern void *hildon_flip(void);
	162	pl_vout_buf = hildon_flip();
	163	#endif
	164	return pl_vout_buf;
	165	}
	166
	167	static int pl_vout_open(void)
	168	{
	169	struct timeval now;
	170
	171	omap_enable_layer(1);
	172	#if defined(VOUT_FBDEV)
	173	pl_vout_buf = vout_fbdev_flip(layer_fb);
	174
	175	// try to align redraws to vsync
	176	vout_fbdev_wait_vsync(layer_fb);
	177	#elif defined(MAEMO)
	178	extern void *hildon_flip(void);
	179	pl_vout_buf = hildon_flip();
	180	#endif
	181
	182	gettimeofday(&now, 0);
	183	vsync_usec_time = now.tv_usec;
	184	while (vsync_usec_time >= frame_interval)
	185	vsync_usec_time -= frame_interval;
	186
	187	return 0;
	188	}
	189
	190	static void pl_vout_close(void)
	191	{
	192	omap_enable_layer(0);
	193	}
	194
	195	void pl_prepare_screenshot(int w, int h, int bpp)
	196	{
	197	*w = pl_vout_w;
	198	*h = pl_vout_h;
	199	*bpp = pl_vout_bpp;
	200
	201	return pl_vout_buf;
	202	}
	203
	204	static void update_input(void)
	205	{
	206	#ifndef MAEMO
	207	int actions[IN_BINDTYPE_COUNT] = { 0, };
	208	unsigned int emu_act;
	209
	210	in_update(actions);
	211	if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
	212	in_update_analogs();
	213	emu_act = actions[IN_BINDTYPE_EMU];
	214	in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
	215
	216	emu_act &= ~SACTION_GUN_MASK;
	217	if (emu_act) {
	218	int which = 0;
	219	for (; !(emu_act & 1); emu_act >>= 1, which++)
	220	;
	221	emu_act = which;
	222	}
	223	emu_set_action(emu_act);
	224
	225	in_keystate = actions[IN_BINDTYPE_PLAYER12];
	226	#endif
	227	#ifdef X11
	228	extern int x11_update_keys(unsigned int *action);
	229	in_keystate \|= x11_update_keys(&emu_act);
	230	emu_set_action(emu_act);
	231	#endif
	232	}
	233
	234	void pl_update_gun(int xn, int xres, int y, int in)
	235	{
	236	if (ts)
	237	pl_gun_ts_update(ts, xn, y, in);
	238
	239	*xres = pl_vout_w;
	240	y = y * pl_vout_h >> 10;
	241	}
	242
	243	#define MAX_LAG_FRAMES 3
	244
	245	#define tvdiff(tv, tv_old) \
	246	((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
	247
	248	/* called on every vsync */
	249	void pl_frame_limit(void)
	250	{
	251	static struct timeval tv_old, tv_expect;
	252	static int vsync_cnt_prev;
	253	struct timeval now;
	254	int diff, usadj;
	255
	256	vsync_cnt++;
	257
	258	/* doing input here because the pad is polled
	259	* thousands of times per frame for some reason */
	260	update_input();
	261
	262	pcnt_end(PCNT_ALL);
	263	gettimeofday(&now, 0);
	264
	265	if (now.tv_sec != tv_old.tv_sec) {
	266	diff = tvdiff(now, tv_old);
	267	vsps_cur = 0.0f;
	268	if (0 < diff && diff < 2000000)
	269	vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
	270	vsync_cnt_prev = vsync_cnt;
	271	flips_per_sec = flip_cnt;
	272	flip_cnt = 0;
	273	tv_old = now;
	274	if (g_opts & OPT_SHOWCPU)
	275	tick_per_sec = get_cpu_ticks();
	276
	277	if (hud_new_msg > 0) {
	278	hud_new_msg--;
	279	if (hud_new_msg == 0)
	280	hud_msg[0] = 0;
	281	}
	282	}
	283	#ifdef PCNT
	284	static int ya_vsync_count;
	285	if (++ya_vsync_count == PCNT_FRAMES) {
	286	pcnt_print(vsps_cur);
	287	ya_vsync_count = 0;
	288	}
	289	#endif
	290
	291	// tv_expect uses usec*1024 units instead of usecs for better accuracy
	292	tv_expect.tv_usec += frame_interval1024;
	293	if (tv_expect.tv_usec >= (1000000 << 10)) {
	294	tv_expect.tv_usec -= (1000000 << 10);
	295	tv_expect.tv_sec++;
	296	}
	297	diff = (tv_expect.tv_sec - now.tv_sec) * 1000000 + (tv_expect.tv_usec >> 10) - now.tv_usec;
	298
	299	if (diff > MAX_LAG_FRAMES * frame_interval \|\| diff < -MAX_LAG_FRAMES * frame_interval) {
	300	//printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, frame_interval);
	301	tv_expect = now;
	302	diff = 0;
	303	// try to align with vsync
	304	usadj = vsync_usec_time;
	305	while (usadj < tv_expect.tv_usec - frame_interval)
	306	usadj += frame_interval;
	307	tv_expect.tv_usec = usadj << 10;
	308	}
	309
	310	if (!(g_opts & OPT_NO_FRAMELIM) && diff > frame_interval) {
	311	// yay for working usleep on pandora!
	312	//printf("usleep %d\n", diff - frame_interval / 2);
	313	usleep(diff - frame_interval);
	314	}
	315
	316	if (pl_rearmed_cbs.frameskip) {
	317	if (diff < -frame_interval)
	318	pl_rearmed_cbs.fskip_advice = 1;
	319	else if (diff >= 0)
	320	pl_rearmed_cbs.fskip_advice = 0;
	321	}
	322
	323	pcnt_start(PCNT_ALL);
	324	}
	325
	326	void pl_timing_prepare(int is_pal)
	327	{
	328	pl_rearmed_cbs.fskip_advice = 0;
	329
	330	frame_interval = is_pal ? 20000 : 16667;
	331	frame_interval1024 = is_pal ? 20000*1024 : 17066667;
	332
	333	// used by P.E.Op.S. frameskip code
	334	pl_rearmed_cbs.gpu_peops.fFrameRateHz = is_pal ? 50.0f : 59.94f;
	335	pl_rearmed_cbs.gpu_peops.dwFrameRateTicks =
	336	(100000100 / (unsigned long)(pl_rearmed_cbs.gpu_peops.fFrameRateHz100));
	337	}
	338
	339	static void pl_text_out16_(int x, int y, const char *text)
	340	{
	341	int i, l, len = strlen(text), w = pl_vout_w;
	342	unsigned short screen = (unsigned short )pl_vout_buf + x + y * w;
	343	unsigned short val = 0xffff;
	344
	345	for (i = 0; i < len; i++, screen += 8)
	346	{
	347	for (l = 0; l < 8; l++)
	348	{
	349	unsigned char fd = fontdata8x8[text[i] * 8 + l];
	350	unsigned short s = screen + l w;
	351	if (fd&0x80) s[0] = val;
	352	if (fd&0x40) s[1] = val;
	353	if (fd&0x20) s[2] = val;
	354	if (fd&0x10) s[3] = val;
	355	if (fd&0x08) s[4] = val;
	356	if (fd&0x04) s[5] = val;
	357	if (fd&0x02) s[6] = val;
	358	if (fd&0x01) s[7] = val;
	359	}
	360	}
	361	}
	362
	363	void pl_text_out16(int x, int y, const char *texto, ...)
	364	{
	365	va_list args;
	366	char buffer[256];
	367
	368	va_start(args, texto);
	369	vsnprintf(buffer, sizeof(buffer), texto, args);
	370	va_end(args);
	371
	372	pl_text_out16_(x, y, buffer);
	373	}
	374
	375	static void pl_get_layer_pos(int x, int y, int w, int h)
	376	{
	377	*x = g_layer_x;
	378	*y = g_layer_y;
	379	*w = g_layer_w;
	380	*h = g_layer_h;
	381	}
	382
	383	struct rearmed_cbs pl_rearmed_cbs = {
	384	pl_get_layer_pos,
	385	pl_vout_open,
	386	pl_vout_set_mode,
	387	pl_vout_flip,
	388	pl_vout_close,
	389	};
	390
	391	/* watchdog */
	392	static void watchdog_thread(void unused)
	393	{
	394	int vsync_cnt_old = 0;
	395	int seen_dead = 0;
	396	int sleep_time = 5;
	397
	398	#ifndef NDEBUG
	399	// don't interfere with debug
	400	return NULL;
	401	#endif
	402	while (1)
	403	{
	404	sleep(sleep_time);
	405
	406	if (stop) {
	407	seen_dead = 0;
	408	sleep_time = 5;
	409	continue;
	410	}
	411	if (vsync_cnt != vsync_cnt_old) {
	412	vsync_cnt_old = vsync_cnt;
	413	seen_dead = 0;
	414	sleep_time = 2;
	415	continue;
	416	}
	417
	418	seen_dead++;
	419	sleep_time = 1;
	420	if (seen_dead > 1)
	421	fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
	422	if (seen_dead > 4) {
	423	fprintf(stderr, "watchdog: lockup detected, aborting\n");
	424	// we can't do any cleanup here really, the main thread is
	425	// likely touching resources and would crash anyway
	426	abort();
	427	}
	428	}
	429	}
	430
	431	void pl_start_watchdog(void)
	432	{
	433	pthread_attr_t attr;
	434	pthread_t tid;
	435	int ret;
	436
	437	pthread_attr_init(&attr);
	438	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	439
	440	ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
	441	if (ret != 0)
	442	fprintf(stderr, "could not start watchdog: %d\n", ret);
	443	}
	444
	445	void pl_init(void)
	446	{
	447	ts = pl_gun_ts_init();
	448	}