frontend/plugin_lib.c

   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 void *pl_fbdev_buf;
  33 int pl_frame_interval;
  34 int in_type1, in_type2;
  35 int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
  36 int in_keystate, in_state_gun;
  37 static void *ts;
  38 static int pl_fbdev_w, pl_fbdev_h, pl_fbdev_bpp;
  39 static int flip_cnt, vsync_cnt, flips_per_sec, tick_per_sec;
  40 static float vsps_cur;
  41 static int 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_hud(void)
  65 {
  66         if (pl_fbdev_bpp == 16)
  67                 pl_text_out16(2, pl_fbdev_h - 10, "%s", hud_msg);
  68 }
  69
  70 static void print_fps(void)
  71 {
  72         if (pl_fbdev_bpp == 16)
  73                 pl_text_out16(2, pl_fbdev_h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
  74 }
  75
  76 static void print_cpu_usage(void)
  77 {
  78         if (pl_fbdev_bpp == 16)
  79                 pl_text_out16(pl_fbdev_w - 28, pl_fbdev_h - 10, "%3d", tick_per_sec);
  80 }
  81
  82 // draw 192x8 status of 24 sound channels
  83 static __attribute__((noinline)) void draw_active_chans(void)
  84 {
  85         extern void spu_get_debug_info(int *chans_out, int *fmod_chans_out, int *noise_chans_out); // hack
  86         int live_chans, fmod_chans, noise_chans;
  87
  88         static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
  89         unsigned short *dest = (unsigned short *)pl_fbdev_buf +
  90                 pl_fbdev_w * (pl_fbdev_h - 10) + pl_fbdev_w / 2 - 192/2;
  91         unsigned short *d, p;
  92         int c, x, y;
  93
  94         if (pl_fbdev_bpp != 16)
  95                 return;
  96
  97         spu_get_debug_info(&live_chans, &fmod_chans, &noise_chans);
  98
  99         for (c = 0; c < 24; c++) {
 100                 d = dest + c * 8;
 101                 p = !(live_chans & (1<<c)) ? 0 :
 102                      (fmod_chans & (1<<c)) ? 0xf000 :
 103                      (noise_chans & (1<<c)) ? 0x001f :
 104                      colors[c & 1];
 105                 for (y = 0; y < 8; y++, d += pl_fbdev_w)
 106                         for (x = 0; x < 8; x++)
 107                                 d[x] = p;
 108         }
 109 }
 110
 111 void *pl_fbdev_set_mode(int w, int h, int bpp)
 112 {
 113         void *ret;
 114
 115         if (w == pl_fbdev_w && h == pl_fbdev_h && bpp == pl_fbdev_bpp)
 116                 return pl_fbdev_buf;
 117
 118         pl_fbdev_w = w;
 119         pl_fbdev_h = h;
 120         pl_fbdev_bpp = bpp;
 121
 122         vout_fbdev_clear(layer_fb);
 123         ret = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
 124         if (ret == NULL)
 125                 fprintf(stderr, "failed to set mode\n");
 126         else
 127                 pl_fbdev_buf = ret;
 128
 129         menu_notify_mode_change(w, h, bpp);
 130
 131         return pl_fbdev_buf;
 132 }
 133
 134 void *pl_fbdev_flip(void)
 135 {
 136         flip_cnt++;
 137
 138         if (pl_fbdev_buf != NULL) {
 139                 if (g_opts & OPT_SHOWSPU)
 140                         draw_active_chans();
 141
 142                 if (hud_msg[0] != 0)
 143                         print_hud();
 144                 else if (g_opts & OPT_SHOWFPS)
 145                         print_fps();
 146
 147                 if (g_opts & OPT_SHOWCPU)
 148                         print_cpu_usage();
 149         }
 150
 151         // let's flip now
 152         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 153         return pl_fbdev_buf;
 154 }
 155
 156 int pl_fbdev_open(void)
 157 {
 158         struct timeval now;
 159
 160         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 161         omap_enable_layer(1);
 162
 163         // try to align redraws to vsync
 164         vout_fbdev_wait_vsync(layer_fb);
 165         gettimeofday(&now, 0);
 166         vsync_usec_time = now.tv_usec;
 167         while (vsync_usec_time >= pl_frame_interval)
 168                 vsync_usec_time -= pl_frame_interval;
 169
 170         return 0;
 171 }
 172
 173 void pl_fbdev_close(void)
 174 {
 175         omap_enable_layer(0);
 176 }
 177
 178 void *pl_prepare_screenshot(int *w, int *h, int *bpp)
 179 {
 180         *w = pl_fbdev_w;
 181         *h = pl_fbdev_h;
 182         *bpp = pl_fbdev_bpp;
 183
 184         return pl_fbdev_buf;
 185 }
 186
 187 static void update_input(void)
 188 {
 189         int actions[IN_BINDTYPE_COUNT] = { 0, };
 190         unsigned int emu_act;
 191
 192         in_update(actions);
 193         if (in_type1 == PSE_PAD_TYPE_ANALOGPAD)
 194                 in_update_analogs();
 195         emu_act = actions[IN_BINDTYPE_EMU];
 196         in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
 197
 198         emu_act &= ~SACTION_GUN_MASK;
 199         if (emu_act) {
 200                 int which = 0;
 201                 for (; !(emu_act & 1); emu_act >>= 1, which++)
 202                         ;
 203                 emu_act = which;
 204         }
 205         emu_set_action(emu_act);
 206
 207         in_keystate = actions[IN_BINDTYPE_PLAYER12];
 208
 209 #ifdef X11
 210         extern int x11_update_keys(unsigned int *action);
 211         in_keystate |= x11_update_keys(&emu_act);
 212         emu_set_action(emu_act);
 213 #endif
 214 }
 215
 216 void pl_update_gun(int *xn, int *xres, int *y, int *in)
 217 {
 218         if (ts)
 219                 pl_gun_ts_update(ts, xn, y, in);
 220
 221         *xres = pl_fbdev_w;
 222         *y = *y * pl_fbdev_h >> 10;
 223 }
 224
 225 #define MAX_LAG_FRAMES 3
 226
 227 #define tvdiff(tv, tv_old) \
 228         ((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
 229 // assumes us < 1000000
 230 #define tvadd(tv, us) { \
 231         tv.tv_usec += us; \
 232         if (tv.tv_usec >= 1000000) { \
 233                 tv.tv_usec -= 1000000; \
 234                 tv.tv_sec++; \
 235         } \
 236 }
 237
 238 /* called on every vsync */
 239 void pl_frame_limit(void)
 240 {
 241         static struct timeval tv_old, tv_expect;
 242         static int vsync_cnt_prev;
 243         struct timeval now;
 244         int diff, usadj;
 245
 246         vsync_cnt++;
 247
 248         /* doing input here because the pad is polled
 249          * thousands of times per frame for some reason */
 250         update_input();
 251
 252         pcnt_end(PCNT_ALL);
 253         gettimeofday(&now, 0);
 254
 255         if (now.tv_sec != tv_old.tv_sec) {
 256                 diff = tvdiff(now, tv_old);
 257                 vsps_cur = 0.0f;
 258                 if (0 < diff && diff < 2000000)
 259                         vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
 260                 vsync_cnt_prev = vsync_cnt;
 261                 flips_per_sec = flip_cnt;
 262                 flip_cnt = 0;
 263                 tv_old = now;
 264                 if (g_opts & OPT_SHOWCPU)
 265                         tick_per_sec = get_cpu_ticks();
 266
 267                 if (hud_new_msg > 0) {
 268                         hud_new_msg--;
 269                         if (hud_new_msg == 0)
 270                                 hud_msg[0] = 0;
 271                 }
 272         }
 273 #ifdef PCNT
 274         static int ya_vsync_count;
 275         if (++ya_vsync_count == PCNT_FRAMES) {
 276                 pcnt_print(vsps_cur);
 277                 ya_vsync_count = 0;
 278         }
 279 #endif
 280
 281         tvadd(tv_expect, pl_frame_interval);
 282         diff = tvdiff(tv_expect, now);
 283         if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
 284                 //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
 285                 tv_expect = now;
 286                 diff = 0;
 287                 // try to align with vsync
 288                 usadj = vsync_usec_time;
 289                 while (usadj < tv_expect.tv_usec - pl_frame_interval)
 290                         usadj += pl_frame_interval;
 291                 tv_expect.tv_usec = usadj;
 292         }
 293
 294         if (!(g_opts & OPT_NO_FRAMELIM) && diff > pl_frame_interval) {
 295                 // yay for working usleep on pandora!
 296                 //printf("usleep %d\n", diff - pl_frame_interval / 2);
 297                 usleep(diff - pl_frame_interval / 2);
 298         }
 299
 300         if (pl_rearmed_cbs.frameskip) {
 301                 if (diff < -pl_frame_interval)
 302                         pl_rearmed_cbs.fskip_advice = 1;
 303                 else if (diff >= 0)
 304                         pl_rearmed_cbs.fskip_advice = 0;
 305         }
 306
 307         pcnt_start(PCNT_ALL);
 308 }
 309
 310 static void pl_text_out16_(int x, int y, const char *text)
 311 {
 312         int i, l, len = strlen(text), w = pl_fbdev_w;
 313         unsigned short *screen = (unsigned short *)pl_fbdev_buf + x + y * w;
 314         unsigned short val = 0xffff;
 315
 316         for (i = 0; i < len; i++, screen += 8)
 317         {
 318                 for (l = 0; l < 8; l++)
 319                 {
 320                         unsigned char fd = fontdata8x8[text[i] * 8 + l];
 321                         unsigned short *s = screen + l * w;
 322                         if (fd&0x80) s[0] = val;
 323                         if (fd&0x40) s[1] = val;
 324                         if (fd&0x20) s[2] = val;
 325                         if (fd&0x10) s[3] = val;
 326                         if (fd&0x08) s[4] = val;
 327                         if (fd&0x04) s[5] = val;
 328                         if (fd&0x02) s[6] = val;
 329                         if (fd&0x01) s[7] = val;
 330                 }
 331         }
 332 }
 333
 334 void pl_text_out16(int x, int y, const char *texto, ...)
 335 {
 336         va_list args;
 337         char    buffer[256];
 338
 339         va_start(args, texto);
 340         vsnprintf(buffer, sizeof(buffer), texto, args);
 341         va_end(args);
 342
 343         pl_text_out16_(x, y, buffer);
 344 }
 345
 346 static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
 347 {
 348         *x = g_layer_x;
 349         *y = g_layer_y;
 350         *w = g_layer_w;
 351         *h = g_layer_h;
 352 }
 353
 354 struct rearmed_cbs pl_rearmed_cbs = {
 355         pl_get_layer_pos,
 356         pl_fbdev_open,
 357         pl_fbdev_set_mode,
 358         pl_fbdev_flip,
 359         pl_fbdev_close,
 360 };
 361
 362 /* watchdog */
 363 static void *watchdog_thread(void *unused)
 364 {
 365         int vsync_cnt_old = 0;
 366         int seen_dead = 0;
 367         int sleep_time = 5;
 368
 369 #ifndef NDEBUG
 370         // don't interfere with debug
 371         return NULL;
 372 #endif
 373         while (1)
 374         {
 375                 sleep(sleep_time);
 376
 377                 if (stop) {
 378                         seen_dead = 0;
 379                         sleep_time = 5;
 380                         continue;
 381                 }
 382                 if (vsync_cnt != vsync_cnt_old) {
 383                         vsync_cnt_old = vsync_cnt;
 384                         seen_dead = 0;
 385                         sleep_time = 2;
 386                         continue;
 387                 }
 388
 389                 seen_dead++;
 390                 sleep_time = 1;
 391                 if (seen_dead > 1)
 392                         fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
 393                 if (seen_dead > 4) {
 394                         fprintf(stderr, "watchdog: lockup detected, aborting\n");
 395                         // we can't do any cleanup here really, the main thread is
 396                         // likely touching resources and would crash anyway
 397                         abort();
 398                 }
 399         }
 400 }
 401
 402 void pl_start_watchdog(void)
 403 {
 404         pthread_attr_t attr;
 405         pthread_t tid;
 406         int ret;
 407
 408         pthread_attr_init(&attr);
 409         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 410
 411         ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
 412         if (ret != 0)
 413                 fprintf(stderr, "could not start watchdog: %d\n", ret);
 414 }
 415
 416 void pl_init(void)
 417 {
 418         ts = pl_gun_ts_init();
 419 }