[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 "plat.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 in_enable_vibration;
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)
{
#if defined(VOUT_FBDEV)
	*w = pl_vout_w;
	*h = pl_vout_h;
	*bpp = pl_vout_bpp;

	return pl_vout_buf;
#else
	return plat_prepare_screenshot(w, h, bpp);
#endif
}

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)
{
	extern unsigned int hSyncCount; // from psxcounters
	extern unsigned int frame_counter;

	pl_vout_w = pl_vout_h = 256;
	pl_vout_bpp = 16;

	tsdev = pl_gun_ts_init();

	pl_rearmed_cbs.gpu_hcnt = &hSyncCount;
	pl_rearmed_cbs.gpu_frame_count = &frame_counter;
}
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 "plat.h"
	28	#include "pcnt.h"
	29	#include "pl_gun_ts.h"
	30	#include "../libpcsxcore/new_dynarec/new_dynarec.h"
	31	#include "../libpcsxcore/psemu_plugin_defs.h"
	32
	33	int in_type1, in_type2;
	34	int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
	35	int in_keystate, in_state_gun;
	36	int in_enable_vibration;
	37	int pl_flip_cnt;
	38	void *tsdev;
	39	void *pl_vout_buf;
	40	static int pl_vout_w, pl_vout_h, pl_vout_bpp;
	41	static int vsync_cnt, flips_per_sec, tick_per_sec;
	42	static float vsps_cur;
	43	static int frame_interval, frame_interval1024, vsync_usec_time;
	44
	45
	46	static __attribute__((noinline)) int get_cpu_ticks(void)
	47	{
	48	static unsigned long last_utime;
	49	static int fd;
	50	unsigned long utime, ret;
	51	char buf[128];
	52
	53	if (fd == 0)
	54	fd = open("/proc/self/stat", O_RDONLY);
	55	lseek(fd, 0, SEEK_SET);
	56	buf[0] = 0;
	57	read(fd, buf, sizeof(buf));
	58	buf[sizeof(buf) - 1] = 0;
	59
	60	sscanf(buf, "%d %s %c %d %d %d %d %d %u %u %u %u %*u %lu", &utime);
	61	ret = utime - last_utime;
	62	last_utime = utime;
	63	return ret;
	64	}
	65
	66	static void print_msg(int h, int border)
	67	{
	68	if (pl_vout_bpp == 16)
	69	pl_text_out16(border + 2, h - 10, "%s", hud_msg);
	70	}
	71
	72	static void print_fps(int h, int border)
	73	{
	74	if (pl_vout_bpp == 16)
	75	pl_text_out16(border + 2, h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
	76	}
	77
	78	static void print_cpu_usage(int w, int h, int border)
	79	{
	80	if (pl_vout_bpp == 16)
	81	pl_text_out16(w - border - 28, h - 10, "%3d", tick_per_sec);
	82	}
	83
	84	// draw 192x8 status of 24 sound channels
	85	static __attribute__((noinline)) void draw_active_chans(int vout_w, int vout_h)
	86	{
	87	extern void spu_get_debug_info(int chans_out, int run_chans,
	88	int fmod_chans_out, int noise_chans_out); // hack
	89	int live_chans, run_chans, fmod_chans, noise_chans;
	90
	91	static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
	92	unsigned short dest = (unsigned short )pl_vout_buf +
	93	vout_w * (vout_h - 10) + vout_w / 2 - 192/2;
	94	unsigned short *d, p;
	95	int c, x, y;
	96
	97	if (pl_vout_bpp != 16)
	98	return;
	99
	100	spu_get_debug_info(&live_chans, &run_chans, &fmod_chans, &noise_chans);
	101
	102	for (c = 0; c < 24; c++) {
	103	d = dest + c * 8;
	104	p = !(live_chans & (1<<c)) ? (run_chans & (1<<c) ? 0x01c0 : 0) :
	105	(fmod_chans & (1<<c)) ? 0xf000 :
	106	(noise_chans & (1<<c)) ? 0x001f :
	107	colors[c & 1];
	108	for (y = 0; y < 8; y++, d += vout_w)
	109	for (x = 0; x < 8; x++)
	110	d[x] = p;
	111	}
	112	}
	113
	114	void pl_print_hud(int w, int h, int xborder)
	115	{
	116	pl_vout_w = w; // used by pollux
	117	pl_vout_h = h;
	118
	119	if (g_opts & OPT_SHOWSPU)
	120	draw_active_chans(w, h);
	121
	122	if (hud_msg[0] != 0)
	123	print_msg(h, xborder);
	124	else if (g_opts & OPT_SHOWFPS)
	125	print_fps(h, xborder);
	126
	127	if (g_opts & OPT_SHOWCPU)
	128	print_cpu_usage(w, h, xborder);
	129	}
	130
	131	static void *pl_vout_set_mode(int w, int h, int bpp)
	132	{
	133	// special h handling, Wipeout likes to change it by 1-6
	134	static int vsync_cnt_ms_prev;
	135	if ((unsigned int)(vsync_cnt - vsync_cnt_ms_prev) < 5*60)
	136	h = (h + 7) & ~7;
	137	vsync_cnt_ms_prev = vsync_cnt;
	138
	139	if (w == pl_vout_w && h == pl_vout_h && bpp == pl_vout_bpp)
	140	return pl_vout_buf;
	141
	142	pl_vout_w = w;
	143	pl_vout_h = h;
	144	pl_vout_bpp = bpp;
	145
	146	#if defined(VOUT_FBDEV)
	147	vout_fbdev_clear(layer_fb);
	148	pl_vout_buf = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
	149	#elif defined(MAEMO)
	150	extern void *hildon_set_mode(int w, int h);
	151	pl_vout_buf = hildon_set_mode(w, h);
	152	#endif
	153
	154	if (pl_vout_buf == NULL)
	155	fprintf(stderr, "failed to set mode\n");
	156
	157	// menu decides on layer size, we commit it
	158	menu_notify_mode_change(w, h, bpp);
	159	omap_enable_layer(1);
	160
	161	return pl_vout_buf;
	162	}
	163
	164	static void *pl_vout_flip(void)
	165	{
	166	pl_flip_cnt++;
	167
	168	if (pl_vout_buf != NULL)
	169	pl_print_hud(pl_vout_w, pl_vout_h, 0);
	170
	171	// let's flip now
	172	#if defined(VOUT_FBDEV)
	173	pl_vout_buf = vout_fbdev_flip(layer_fb);
	174	#elif defined(MAEMO)
	175	extern void *hildon_flip(void);
	176	pl_vout_buf = hildon_flip();
	177	#endif
	178	return pl_vout_buf;
	179	}
	180
	181	static int pl_vout_open(void)
	182	{
	183	struct timeval now;
	184
	185	omap_enable_layer(1);
	186	#if defined(VOUT_FBDEV)
	187	// force mode update
	188	int h = pl_vout_h;
	189	pl_vout_h--;
	190	pl_vout_buf = pl_vout_set_mode(pl_vout_w, h, pl_vout_bpp);
	191
	192	// try to align redraws to vsync
	193	vout_fbdev_wait_vsync(layer_fb);
	194	#elif defined(MAEMO)
	195	extern void *hildon_flip(void);
	196	pl_vout_buf = hildon_flip();
	197	#endif
	198
	199	gettimeofday(&now, 0);
	200	vsync_usec_time = now.tv_usec;
	201	while (vsync_usec_time >= frame_interval)
	202	vsync_usec_time -= frame_interval;
	203
	204	return 0;
	205	}
	206
	207	static void pl_vout_close(void)
	208	{
	209	omap_enable_layer(0);
	210	}
	211
	212	void pl_prepare_screenshot(int w, int h, int bpp)
	213	{
	214	#if defined(VOUT_FBDEV)
	215	*w = pl_vout_w;
	216	*h = pl_vout_h;
	217	*bpp = pl_vout_bpp;
	218
	219	return pl_vout_buf;
	220	#else
	221	return plat_prepare_screenshot(w, h, bpp);
	222	#endif
	223	}
	224
	225	static void update_input(void)
	226	{
	227	#ifndef MAEMO
	228	int actions[IN_BINDTYPE_COUNT] = { 0, };
	229	unsigned int emu_act;
	230
	231	in_update(actions);
	232	if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
	233	in_update_analogs();
	234	emu_act = actions[IN_BINDTYPE_EMU];
	235	in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
	236
	237	emu_act &= ~SACTION_GUN_MASK;
	238	if (emu_act) {
	239	int which = 0;
	240	for (; !(emu_act & 1); emu_act >>= 1, which++)
	241	;
	242	emu_act = which;
	243	}
	244	emu_set_action(emu_act);
	245
	246	in_keystate = actions[IN_BINDTYPE_PLAYER12];
	247	#endif
	248	#ifdef X11
	249	extern int x11_update_keys(unsigned int *action);
	250	in_keystate \|= x11_update_keys(&emu_act);
	251	emu_set_action(emu_act);
	252	#endif
	253	}
	254
	255	void pl_update_gun(int xn, int xres, int y, int in)
	256	{
	257	if (tsdev)
	258	pl_gun_ts_update(tsdev, xn, y, in);
	259
	260	*xres = pl_vout_w;
	261	y = y * pl_vout_h >> 10;
	262	}
	263
	264	#define MAX_LAG_FRAMES 3
	265
	266	#define tvdiff(tv, tv_old) \
	267	((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
	268
	269	/* called on every vsync */
	270	void pl_frame_limit(void)
	271	{
	272	static struct timeval tv_old, tv_expect;
	273	static int vsync_cnt_prev, drc_active_vsyncs;
	274	struct timeval now;
	275	int diff, usadj;
	276
	277	vsync_cnt++;
	278
	279	/* doing input here because the pad is polled
	280	* thousands of times per frame for some reason */
	281	update_input();
	282
	283	pcnt_end(PCNT_ALL);
	284	gettimeofday(&now, 0);
	285
	286	if (now.tv_sec != tv_old.tv_sec) {
	287	diff = tvdiff(now, tv_old);
	288	vsps_cur = 0.0f;
	289	if (0 < diff && diff < 2000000)
	290	vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
	291	vsync_cnt_prev = vsync_cnt;
	292	flips_per_sec = pl_flip_cnt;
	293	pl_flip_cnt = 0;
	294	tv_old = now;
	295	if (g_opts & OPT_SHOWCPU)
	296	tick_per_sec = get_cpu_ticks();
	297
	298	if (hud_new_msg > 0) {
	299	hud_new_msg--;
	300	if (hud_new_msg == 0)
	301	hud_msg[0] = 0;
	302	}
	303	}
	304	#ifdef PCNT
	305	static int ya_vsync_count;
	306	if (++ya_vsync_count == PCNT_FRAMES) {
	307	pcnt_print(vsps_cur);
	308	ya_vsync_count = 0;
	309	}
	310	#endif
	311
	312	// tv_expect uses usec*1024 units instead of usecs for better accuracy
	313	tv_expect.tv_usec += frame_interval1024;
	314	if (tv_expect.tv_usec >= (1000000 << 10)) {
	315	tv_expect.tv_usec -= (1000000 << 10);
	316	tv_expect.tv_sec++;
	317	}
	318	diff = (tv_expect.tv_sec - now.tv_sec) * 1000000 + (tv_expect.tv_usec >> 10) - now.tv_usec;
	319
	320	if (diff > MAX_LAG_FRAMES * frame_interval \|\| diff < -MAX_LAG_FRAMES * frame_interval) {
	321	//printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, frame_interval);
	322	tv_expect = now;
	323	diff = 0;
	324	// try to align with vsync
	325	usadj = vsync_usec_time;
	326	while (usadj < tv_expect.tv_usec - frame_interval)
	327	usadj += frame_interval;
	328	tv_expect.tv_usec = usadj << 10;
	329	}
	330
	331	if (!(g_opts & OPT_NO_FRAMELIM) && diff > frame_interval) {
	332	// yay for working usleep on pandora!
	333	//printf("usleep %d\n", diff - frame_interval / 2);
	334	usleep(diff - frame_interval);
	335	}
	336
	337	if (pl_rearmed_cbs.frameskip) {
	338	if (diff < -frame_interval)
	339	pl_rearmed_cbs.fskip_advice = 1;
	340	else if (diff >= 0)
	341	pl_rearmed_cbs.fskip_advice = 0;
	342
	343	// recompilation is not that fast and may cause frame skip on
	344	// loading screens and such, resulting in flicker or glitches
	345	if (new_dynarec_did_compile) {
	346	if (drc_active_vsyncs < 32)
	347	pl_rearmed_cbs.fskip_advice = 0;
	348	drc_active_vsyncs++;
	349	}
	350	else
	351	drc_active_vsyncs = 0;
	352	new_dynarec_did_compile = 0;
	353	}
	354
	355	pcnt_start(PCNT_ALL);
	356	}
	357
	358	void pl_timing_prepare(int is_pal)
	359	{
	360	pl_rearmed_cbs.fskip_advice = 0;
	361
	362	frame_interval = is_pal ? 20000 : 16667;
	363	frame_interval1024 = is_pal ? 20000*1024 : 17066667;
	364
	365	// used by P.E.Op.S. frameskip code
	366	pl_rearmed_cbs.gpu_peops.fFrameRateHz = is_pal ? 50.0f : 59.94f;
	367	pl_rearmed_cbs.gpu_peops.dwFrameRateTicks =
	368	(100000100 / (unsigned long)(pl_rearmed_cbs.gpu_peops.fFrameRateHz100));
	369	}
	370
	371	static void pl_text_out16_(int x, int y, const char *text)
	372	{
	373	int i, l, len = strlen(text), w = pl_vout_w;
	374	unsigned short screen = (unsigned short )pl_vout_buf + x + y * w;
	375	unsigned short val = 0xffff;
	376
	377	for (i = 0; i < len; i++, screen += 8)
	378	{
	379	for (l = 0; l < 8; l++)
	380	{
	381	unsigned char fd = fontdata8x8[text[i] * 8 + l];
	382	unsigned short s = screen + l w;
	383	if (fd&0x80) s[0] = val;
	384	if (fd&0x40) s[1] = val;
	385	if (fd&0x20) s[2] = val;
	386	if (fd&0x10) s[3] = val;
	387	if (fd&0x08) s[4] = val;
	388	if (fd&0x04) s[5] = val;
	389	if (fd&0x02) s[6] = val;
	390	if (fd&0x01) s[7] = val;
	391	}
	392	}
	393	}
	394
	395	void pl_text_out16(int x, int y, const char *texto, ...)
	396	{
	397	va_list args;
	398	char buffer[256];
	399
	400	va_start(args, texto);
	401	vsnprintf(buffer, sizeof(buffer), texto, args);
	402	va_end(args);
	403
	404	pl_text_out16_(x, y, buffer);
	405	}
	406
	407	static void pl_get_layer_pos(int x, int y, int w, int h)
	408	{
	409	*x = g_layer_x;
	410	*y = g_layer_y;
	411	*w = g_layer_w;
	412	*h = g_layer_h;
	413	}
	414
	415	struct rearmed_cbs pl_rearmed_cbs = {
	416	pl_get_layer_pos,
	417	pl_vout_open,
	418	pl_vout_set_mode,
	419	pl_vout_flip,
	420	pl_vout_close,
	421	};
	422
	423	/* watchdog */
	424	static void watchdog_thread(void unused)
	425	{
	426	int vsync_cnt_old = 0;
	427	int seen_dead = 0;
	428	int sleep_time = 5;
	429
	430	#if !defined(NDEBUG) \|\| defined(DRC_DBG)
	431	// don't interfere with debug
	432	return NULL;
	433	#endif
	434	while (1)
	435	{
	436	sleep(sleep_time);
	437
	438	if (stop) {
	439	seen_dead = 0;
	440	sleep_time = 5;
	441	continue;
	442	}
	443	if (vsync_cnt != vsync_cnt_old) {
	444	vsync_cnt_old = vsync_cnt;
	445	seen_dead = 0;
	446	sleep_time = 2;
	447	continue;
	448	}
	449
	450	seen_dead++;
	451	sleep_time = 1;
	452	if (seen_dead > 1)
	453	fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
	454	if (seen_dead > 4) {
	455	fprintf(stderr, "watchdog: lockup detected, aborting\n");
	456	// we can't do any cleanup here really, the main thread is
	457	// likely touching resources and would crash anyway
	458	abort();
	459	}
	460	}
	461	}
	462
	463	void pl_start_watchdog(void)
	464	{
	465	pthread_attr_t attr;
	466	pthread_t tid;
	467	int ret;
	468
	469	pthread_attr_init(&attr);
	470	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
	471
	472	ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
	473	if (ret != 0)
	474	fprintf(stderr, "could not start watchdog: %d\n", ret);
	475	}
	476
	477	void pl_init(void)
	478	{
	479	extern unsigned int hSyncCount; // from psxcounters
	480	extern unsigned int frame_counter;
	481
	482	pl_vout_w = pl_vout_h = 256;
	483	pl_vout_bpp = 16;
	484
	485	tsdev = pl_gun_ts_init();
	486
	487	pl_rearmed_cbs.gpu_hcnt = &hSyncCount;
	488	pl_rearmed_cbs.gpu_frame_count = &frame_counter;
	489	}