[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;
int pl_flip_cnt;
void *tsdev;
void *pl_vout_buf;
static int pl_vout_w, pl_vout_h, pl_vout_bpp;
static int 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_msg(int h, int border)
{
	if (pl_vout_bpp == 16)
		pl_text_out16(border + 2, h - 10, "%s", hud_msg);
}

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

static void print_cpu_usage(int w, int h, int border)
{
	if (pl_vout_bpp == 16)
		pl_text_out16(w - border - 28, h - 10, "%3d", tick_per_sec);
}

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

	static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
	unsigned short *dest = (unsigned short *)pl_vout_buf +
		vout_w * (vout_h - 10) + 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, &run_chans, &fmod_chans, &noise_chans);

	for (c = 0; c < 24; c++) {
		d = dest + c * 8;
		p = !(live_chans & (1<<c)) ? (run_chans & (1<<c) ? 0x01c0 : 0) :
		     (fmod_chans & (1<<c)) ? 0xf000 :
		     (noise_chans & (1<<c)) ? 0x001f :
		     colors[c & 1];
		for (y = 0; y < 8; y++, d += vout_w)
			for (x = 0; x < 8; x++)
				d[x] = p;
	}
}

void pl_print_hud(int w, int h, int xborder)
{
	pl_vout_w = w; // used by pollux
	pl_vout_h = h;

	if (g_opts & OPT_SHOWSPU)
		draw_active_chans(w, h);

	if (hud_msg[0] != 0)
		print_msg(h, xborder);
	else if (g_opts & OPT_SHOWFPS)
		print_fps(h, xborder);

	if (g_opts & OPT_SHOWCPU)
		print_cpu_usage(w, h, xborder);
}

static void *pl_vout_set_mode(int w, int h, int bpp)
{
	// special h handling, Wipeout likes to change it by 1-6
	static int vsync_cnt_ms_prev;
	if ((unsigned int)(vsync_cnt - vsync_cnt_ms_prev) < 5*60)
		h = (h + 7) & ~7;
	vsync_cnt_ms_prev = vsync_cnt;

	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)
{
	pl_flip_cnt++;

	if (pl_vout_buf != NULL)
		pl_print_hud(pl_vout_w, pl_vout_h, 0);

	// 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)
	// force mode update
	int h = pl_vout_h;
	pl_vout_h--;
	pl_vout_buf = pl_vout_set_mode(pl_vout_w, h, pl_vout_bpp);

	// 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 (tsdev)
		pl_gun_ts_update(tsdev, 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, drc_active_vsyncs;
	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 = pl_flip_cnt;
		pl_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;

		// 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;

	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;

#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);
}

void pl_init(void)
{
	pl_vout_w = pl_vout_h = 256;
	pl_vout_bpp = 16;

	tsdev = 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	int pl_flip_cnt;
	36	void *tsdev;
	37	void *pl_vout_buf;
	38	static int pl_vout_w, pl_vout_h, pl_vout_bpp;
	39	static int vsync_cnt, flips_per_sec, tick_per_sec;
	40	static float vsps_cur;
	41	static int frame_interval, frame_interval1024, vsync_usec_time;
	42
	43
	44	static __attribute__((noinline)) int get_cpu_ticks(void)
	45	{
	46	static unsigned long last_utime;
	47	static int fd;
	48	unsigned long utime, ret;
	49	char buf[128];
	50
	51	if (fd == 0)
	52	fd = open("/proc/self/stat", O_RDONLY);
	53	lseek(fd, 0, SEEK_SET);
	54	buf[0] = 0;
	55	read(fd, buf, sizeof(buf));
	56	buf[sizeof(buf) - 1] = 0;
	57
	58	sscanf(buf, "%d %s %c %d %d %d %d %d %u %u %u %u %*u %lu", &utime);
	59	ret = utime - last_utime;
	60	last_utime = utime;
	61	return ret;
	62	}
	63
	64	static void print_msg(int h, int border)
	65	{
	66	if (pl_vout_bpp == 16)
	67	pl_text_out16(border + 2, h - 10, "%s", hud_msg);
	68	}
	69
	70	static void print_fps(int h, int border)
	71	{
	72	if (pl_vout_bpp == 16)
	73	pl_text_out16(border + 2, h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
	74	}
	75
	76	static void print_cpu_usage(int w, int h, int border)
	77	{
	78	if (pl_vout_bpp == 16)
	79	pl_text_out16(w - border - 28, h - 10, "%3d", tick_per_sec);
	80	}
	81
	82	// draw 192x8 status of 24 sound channels
	83	static __attribute__((noinline)) void draw_active_chans(int vout_w, int vout_h)
	84	{
	85	extern void spu_get_debug_info(int chans_out, int run_chans,
	86	int fmod_chans_out, int noise_chans_out); // hack
	87	int live_chans, run_chans, fmod_chans, noise_chans;
	88
	89	static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
	90	unsigned short dest = (unsigned short )pl_vout_buf +
	91	vout_w * (vout_h - 10) + vout_w / 2 - 192/2;
	92	unsigned short *d, p;
	93	int c, x, y;
	94
	95	if (pl_vout_bpp != 16)
	96	return;
	97
	98	spu_get_debug_info(&live_chans, &run_chans, &fmod_chans, &noise_chans);
	99
	100	for (c = 0; c < 24; c++) {
	101	d = dest + c * 8;
	102	p = !(live_chans & (1<<c)) ? (run_chans & (1<<c) ? 0x01c0 : 0) :
	103	(fmod_chans & (1<<c)) ? 0xf000 :
	104	(noise_chans & (1<<c)) ? 0x001f :
	105	colors[c & 1];
	106	for (y = 0; y < 8; y++, d += vout_w)
	107	for (x = 0; x < 8; x++)
	108	d[x] = p;
	109	}
	110	}
	111
	112	void pl_print_hud(int w, int h, int xborder)
	113	{
	114	pl_vout_w = w; // used by pollux
	115	pl_vout_h = h;
	116
	117	if (g_opts & OPT_SHOWSPU)
	118	draw_active_chans(w, h);
	119
	120	if (hud_msg[0] != 0)
	121	print_msg(h, xborder);
	122	else if (g_opts & OPT_SHOWFPS)
	123	print_fps(h, xborder);
	124
	125	if (g_opts & OPT_SHOWCPU)
	126	print_cpu_usage(w, h, xborder);
	127	}
	128
	129	static void *pl_vout_set_mode(int w, int h, int bpp)
	130	{
	131	// special h handling, Wipeout likes to change it by 1-6
	132	static int vsync_cnt_ms_prev;
	133	if ((unsigned int)(vsync_cnt - vsync_cnt_ms_prev) < 5*60)
	134	h = (h + 7) & ~7;
	135	vsync_cnt_ms_prev = vsync_cnt;
	136
	137	if (w == pl_vout_w && h == pl_vout_h && bpp == pl_vout_bpp)
	138	return pl_vout_buf;
	139
	140	pl_vout_w = w;
	141	pl_vout_h = h;
	142	pl_vout_bpp = bpp;
	143
	144	#if defined(VOUT_FBDEV)
	145	vout_fbdev_clear(layer_fb);
	146	pl_vout_buf = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
	147	#elif defined(MAEMO)
	148	extern void *hildon_set_mode(int w, int h);
	149	pl_vout_buf = hildon_set_mode(w, h);
	150	#endif
	151
	152	if (pl_vout_buf == NULL)
	153	fprintf(stderr, "failed to set mode\n");
	154
	155	// menu decides on layer size, we commit it
	156	menu_notify_mode_change(w, h, bpp);
	157	omap_enable_layer(1);
	158
	159	return pl_vout_buf;
	160	}
	161
	162	static void *pl_vout_flip(void)
	163	{
	164	pl_flip_cnt++;
	165
	166	if (pl_vout_buf != NULL)
	167	pl_print_hud(pl_vout_w, pl_vout_h, 0);
	168
	169	// let's flip now
	170	#if defined(VOUT_FBDEV)
	171	pl_vout_buf = vout_fbdev_flip(layer_fb);
	172	#elif defined(MAEMO)
	173	extern void *hildon_flip(void);
	174	pl_vout_buf = hildon_flip();
	175	#endif
	176	return pl_vout_buf;
	177	}
	178
	179	static int pl_vout_open(void)
	180	{
	181	struct timeval now;
	182
	183	omap_enable_layer(1);
	184	#if defined(VOUT_FBDEV)
	185	// force mode update
	186	int h = pl_vout_h;
	187	pl_vout_h--;
	188	pl_vout_buf = pl_vout_set_mode(pl_vout_w, h, pl_vout_bpp);
	189
	190	// try to align redraws to vsync
	191	vout_fbdev_wait_vsync(layer_fb);
	192	#elif defined(MAEMO)
	193	extern void *hildon_flip(void);
	194	pl_vout_buf = hildon_flip();
	195	#endif
	196
	197	gettimeofday(&now, 0);
	198	vsync_usec_time = now.tv_usec;
	199	while (vsync_usec_time >= frame_interval)
	200	vsync_usec_time -= frame_interval;
	201
	202	return 0;
	203	}
	204
	205	static void pl_vout_close(void)
	206	{
	207	omap_enable_layer(0);
	208	}
	209
	210	void pl_prepare_screenshot(int w, int h, int bpp)
	211	{
	212	*w = pl_vout_w;
	213	*h = pl_vout_h;
	214	*bpp = pl_vout_bpp;
	215
	216	return pl_vout_buf;
	217	}
	218
	219	static void update_input(void)
	220	{
	221	#ifndef MAEMO
	222	int actions[IN_BINDTYPE_COUNT] = { 0, };
	223	unsigned int emu_act;
	224
	225	in_update(actions);
	226	if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
	227	in_update_analogs();
	228	emu_act = actions[IN_BINDTYPE_EMU];
	229	in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
	230
	231	emu_act &= ~SACTION_GUN_MASK;
	232	if (emu_act) {
	233	int which = 0;
	234	for (; !(emu_act & 1); emu_act >>= 1, which++)
	235	;
	236	emu_act = which;
	237	}
	238	emu_set_action(emu_act);
	239
	240	in_keystate = actions[IN_BINDTYPE_PLAYER12];
	241	#endif
	242	#ifdef X11
	243	extern int x11_update_keys(unsigned int *action);
	244	in_keystate \|= x11_update_keys(&emu_act);
	245	emu_set_action(emu_act);
	246	#endif
	247	}
	248
	249	void pl_update_gun(int xn, int xres, int y, int in)
	250	{
	251	if (tsdev)
	252	pl_gun_ts_update(tsdev, xn, y, in);
	253
	254	*xres = pl_vout_w;
	255	y = y * pl_vout_h >> 10;
	256	}
	257
	258	#define MAX_LAG_FRAMES 3
	259
	260	#define tvdiff(tv, tv_old) \
	261	((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
	262
	263	/* called on every vsync */
	264	void pl_frame_limit(void)
	265	{
	266	static struct timeval tv_old, tv_expect;
	267	static int vsync_cnt_prev, drc_active_vsyncs;
	268	struct timeval now;
	269	int diff, usadj;
	270
	271	vsync_cnt++;
	272
	273	/* doing input here because the pad is polled
	274	* thousands of times per frame for some reason */
	275	update_input();
	276
	277	pcnt_end(PCNT_ALL);
	278	gettimeofday(&now, 0);
	279
	280	if (now.tv_sec != tv_old.tv_sec) {
	281	diff = tvdiff(now, tv_old);
	282	vsps_cur = 0.0f;
	283	if (0 < diff && diff < 2000000)
	284	vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
	285	vsync_cnt_prev = vsync_cnt;
	286	flips_per_sec = pl_flip_cnt;
	287	pl_flip_cnt = 0;
	288	tv_old = now;
	289	if (g_opts & OPT_SHOWCPU)
	290	tick_per_sec = get_cpu_ticks();
	291
	292	if (hud_new_msg > 0) {
	293	hud_new_msg--;
	294	if (hud_new_msg == 0)
	295	hud_msg[0] = 0;
	296	}
	297	}
	298	#ifdef PCNT
	299	static int ya_vsync_count;
	300	if (++ya_vsync_count == PCNT_FRAMES) {
	301	pcnt_print(vsps_cur);
	302	ya_vsync_count = 0;
	303	}
	304	#endif
	305
	306	// tv_expect uses usec*1024 units instead of usecs for better accuracy
	307	tv_expect.tv_usec += frame_interval1024;
	308	if (tv_expect.tv_usec >= (1000000 << 10)) {
	309	tv_expect.tv_usec -= (1000000 << 10);
	310	tv_expect.tv_sec++;
	311	}
	312	diff = (tv_expect.tv_sec - now.tv_sec) * 1000000 + (tv_expect.tv_usec >> 10) - now.tv_usec;
	313
	314	if (diff > MAX_LAG_FRAMES * frame_interval \|\| diff < -MAX_LAG_FRAMES * frame_interval) {
	315	//printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, frame_interval);
	316	tv_expect = now;
	317	diff = 0;
	318	// try to align with vsync
	319	usadj = vsync_usec_time;
	320	while (usadj < tv_expect.tv_usec - frame_interval)
	321	usadj += frame_interval;
	322	tv_expect.tv_usec = usadj << 10;
	323	}
	324
	325	if (!(g_opts & OPT_NO_FRAMELIM) && diff > frame_interval) {
	326	// yay for working usleep on pandora!
	327	//printf("usleep %d\n", diff - frame_interval / 2);
	328	usleep(diff - frame_interval);
	329	}
	330
	331	if (pl_rearmed_cbs.frameskip) {
	332	if (diff < -frame_interval)
	333	pl_rearmed_cbs.fskip_advice = 1;
	334	else if (diff >= 0)
	335	pl_rearmed_cbs.fskip_advice = 0;
	336
	337	// recompilation is not that fast and may cause frame skip on
	338	// loading screens and such, resulting in flicker or glitches
	339	if (new_dynarec_did_compile) {
	340	if (drc_active_vsyncs < 32)
	341	pl_rearmed_cbs.fskip_advice = 0;
	342	drc_active_vsyncs++;
	343	}
	344	else
	345	drc_active_vsyncs = 0;
	346	new_dynarec_did_compile = 0;
	347	}
	348
	349	pcnt_start(PCNT_ALL);
	350	}
	351
	352	void pl_timing_prepare(int is_pal)
	353	{
	354	pl_rearmed_cbs.fskip_advice = 0;
	355
	356	frame_interval = is_pal ? 20000 : 16667;
	357	frame_interval1024 = is_pal ? 20000*1024 : 17066667;
	358
	359	// used by P.E.Op.S. frameskip code
	360	pl_rearmed_cbs.gpu_peops.fFrameRateHz = is_pal ? 50.0f : 59.94f;
	361	pl_rearmed_cbs.gpu_peops.dwFrameRateTicks =
	362	(100000100 / (unsigned long)(pl_rearmed_cbs.gpu_peops.fFrameRateHz100));
	363	}
	364
	365	static void pl_text_out16_(int x, int y, const char *text)
	366	{
	367	int i, l, len = strlen(text), w = pl_vout_w;
	368	unsigned short screen = (unsigned short )pl_vout_buf + x + y * w;
	369	unsigned short val = 0xffff;
	370
	371	for (i = 0; i < len; i++, screen += 8)
	372	{
	373	for (l = 0; l < 8; l++)
	374	{
	375	unsigned char fd = fontdata8x8[text[i] * 8 + l];
	376	unsigned short s = screen + l w;
	377	if (fd&0x80) s[0] = val;
	378	if (fd&0x40) s[1] = val;
	379	if (fd&0x20) s[2] = val;
	380	if (fd&0x10) s[3] = val;
	381	if (fd&0x08) s[4] = val;
	382	if (fd&0x04) s[5] = val;
	383	if (fd&0x02) s[6] = val;
	384	if (fd&0x01) s[7] = val;
	385	}
	386	}
	387	}
	388
	389	void pl_text_out16(int x, int y, const char *texto, ...)
	390	{
	391	va_list args;
	392	char buffer[256];
	393
	394	va_start(args, texto);
	395	vsnprintf(buffer, sizeof(buffer), texto, args);
	396	va_end(args);
	397
	398	pl_text_out16_(x, y, buffer);
	399	}
	400
	401	static void pl_get_layer_pos(int x, int y, int w, int h)
	402	{
	403	*x = g_layer_x;
	404	*y = g_layer_y;
	405	*w = g_layer_w;
	406	*h = g_layer_h;
	407	}
	408
	409	struct rearmed_cbs pl_rearmed_cbs = {
	410	pl_get_layer_pos,
	411	pl_vout_open,
	412	pl_vout_set_mode,
	413	pl_vout_flip,
	414	pl_vout_close,
	415	};
	416
	417	/* watchdog */
	418	static void watchdog_thread(void unused)
	419	{
	420	int vsync_cnt_old = 0;
	421	int seen_dead = 0;
	422	int sleep_time = 5;
	423
	424	#if !defined(NDEBUG) \|\| defined(DRC_DBG)
	425	// don't interfere with debug
	426	return NULL;
	427	#endif
	428	while (1)
	429	{
	430	sleep(sleep_time);
	431
	432	if (stop) {
	433	seen_dead = 0;
	434	sleep_time = 5;
	435	continue;
	436	}
	437	if (vsync_cnt != vsync_cnt_old) {
	438	vsync_cnt_old = vsync_cnt;
	439	seen_dead = 0;
	440	sleep_time = 2;
	441	continue;
	442	}
	443
	444	seen_dead++;
	445	sleep_time = 1;
	446	if (seen_dead > 1)
	447	fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
	448	if (seen_dead > 4) {
	449	fprintf(stderr, "watchdog: lockup detected, aborting\n");
	450	// we can't do any cleanup here really, the main thread is
	451	// likely touching resources and would crash anyway
	452	abort();
	453	}
	454	}
	455	}
	456
	457	void pl_start_watchdog(void)
	458	{
	459	pthread_attr_t attr;
	460	pthread_t tid;
	461	int ret;
	462
	463	pthread_attr_init(&attr);
	464	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	465
	466	ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
	467	if (ret != 0)
	468	fprintf(stderr, "could not start watchdog: %d\n", ret);
	469	}
	470
	471	void pl_init(void)
	472	{
	473	pl_vout_w = pl_vout_h = 256;
	474	pl_vout_bpp = 16;
	475
	476	tsdev = pl_gun_ts_init();
	477	}