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 "../libpcsxcore/new_dynarec/new_dynarec.h"
  29 #include "../libpcsxcore/psemu_plugin_defs.h"
  30
  31 void *pl_fbdev_buf;
  32 int pl_frame_interval;
  33 int in_type, in_keystate, in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
  34 static int pl_fbdev_w, pl_fbdev_h, pl_fbdev_bpp;
  35 static int flip_cnt, vsync_cnt, flips_per_sec, tick_per_sec;
  36 static float vsps_cur;
  37 static int vsync_usec_time;
  38
  39 static int get_cpu_ticks(void)
  40 {
  41         static unsigned long last_utime;
  42         static int fd;
  43         unsigned long utime, ret;
  44         char buf[128];
  45
  46         if (fd == 0)
  47                 fd = open("/proc/self/stat", O_RDONLY);
  48         lseek(fd, 0, SEEK_SET);
  49         buf[0] = 0;
  50         read(fd, buf, sizeof(buf));
  51         buf[sizeof(buf) - 1] = 0;
  52
  53         sscanf(buf, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu", &utime);
  54         ret = utime - last_utime;
  55         last_utime = utime;
  56         return ret;
  57 }
  58
  59 static void print_hud(void)
  60 {
  61         if (pl_fbdev_bpp == 16)
  62                 pl_text_out16(2, pl_fbdev_h - 10, "%s", hud_msg);
  63 }
  64
  65 static void print_fps(void)
  66 {
  67         if (pl_fbdev_bpp == 16)
  68                 pl_text_out16(2, pl_fbdev_h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
  69 }
  70
  71 static void print_cpu_usage(void)
  72 {
  73         if (pl_fbdev_bpp == 16)
  74                 pl_text_out16(pl_fbdev_w - 28, pl_fbdev_h - 10, "%3d", tick_per_sec);
  75 }
  76
  77 // draw 192x8 status of 24 sound channels
  78 static __attribute__((noinline)) void draw_active_chans(void)
  79 {
  80         extern void spu_get_debug_info(int *chans_out, int *fmod_chans_out, int *noise_chans_out); // hack
  81         int live_chans, fmod_chans, noise_chans;
  82
  83         static const unsigned short colors[2] = { 0x1fe3, 0x0700 };
  84         unsigned short *dest = (unsigned short *)pl_fbdev_buf +
  85                 pl_fbdev_w * (pl_fbdev_h - 10) + pl_fbdev_w / 2 - 192/2;
  86         unsigned short *d, p;
  87         int c, x, y;
  88
  89         if (pl_fbdev_bpp != 16)
  90                 return;
  91
  92         spu_get_debug_info(&live_chans, &fmod_chans, &noise_chans);
  93
  94         for (c = 0; c < 24; c++) {
  95                 d = dest + c * 8;
  96                 p = !(live_chans & (1<<c)) ? 0 :
  97                      (fmod_chans & (1<<c)) ? 0xf000 :
  98                      (noise_chans & (1<<c)) ? 0x001f :
  99                      colors[c & 1];
 100                 for (y = 0; y < 8; y++, d += pl_fbdev_w)
 101                         for (x = 0; x < 8; x++)
 102                                 d[x] = p;
 103         }
 104 }
 105
 106 void *pl_fbdev_set_mode(int w, int h, int bpp)
 107 {
 108         void *ret;
 109
 110         if (w == pl_fbdev_w && h == pl_fbdev_h && bpp == pl_fbdev_bpp)
 111                 return pl_fbdev_buf;
 112
 113         pl_fbdev_w = w;
 114         pl_fbdev_h = h;
 115         pl_fbdev_bpp = bpp;
 116
 117         vout_fbdev_clear(layer_fb);
 118         ret = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
 119         if (ret == NULL)
 120                 fprintf(stderr, "failed to set mode\n");
 121         else
 122                 pl_fbdev_buf = ret;
 123
 124         menu_notify_mode_change(w, h, bpp);
 125
 126         return pl_fbdev_buf;
 127 }
 128
 129 void *pl_fbdev_flip(void)
 130 {
 131         flip_cnt++;
 132
 133         if (pl_fbdev_buf != NULL) {
 134                 if (g_opts & OPT_SHOWSPU)
 135                         draw_active_chans();
 136
 137                 if (hud_msg[0] != 0)
 138                         print_hud();
 139                 else if (g_opts & OPT_SHOWFPS)
 140                         print_fps();
 141
 142                 if (g_opts & OPT_SHOWCPU)
 143                         print_cpu_usage();
 144         }
 145
 146         // let's flip now
 147         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 148         return pl_fbdev_buf;
 149 }
 150
 151 int pl_fbdev_open(void)
 152 {
 153         struct timeval now;
 154
 155         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 156         omap_enable_layer(1);
 157
 158         // try to align redraws to vsync
 159         vout_fbdev_wait_vsync(layer_fb);
 160         gettimeofday(&now, 0);
 161         vsync_usec_time = now.tv_usec;
 162         while (vsync_usec_time >= pl_frame_interval)
 163                 vsync_usec_time -= pl_frame_interval;
 164
 165         return 0;
 166 }
 167
 168 void pl_fbdev_close(void)
 169 {
 170         omap_enable_layer(0);
 171 }
 172
 173 void *pl_prepare_screenshot(int *w, int *h, int *bpp)
 174 {
 175         *w = pl_fbdev_w;
 176         *h = pl_fbdev_h;
 177         *bpp = pl_fbdev_bpp;
 178
 179         return pl_fbdev_buf;
 180 }
 181
 182 static void update_input(void)
 183 {
 184         int actions[IN_BINDTYPE_COUNT] = { 0, };
 185         unsigned int emu_act;
 186
 187         in_update(actions);
 188         if (in_type == PSE_PAD_TYPE_ANALOGPAD)
 189                 in_update_analogs();
 190         emu_act = actions[IN_BINDTYPE_EMU];
 191         if (emu_act) {
 192                 int which = 0;
 193                 for (; !(emu_act & 1); emu_act >>= 1, which++)
 194                         ;
 195                 emu_act = which;
 196         }
 197         emu_set_action(emu_act);
 198
 199         in_keystate = actions[IN_BINDTYPE_PLAYER12];
 200
 201 #ifdef X11
 202         extern int x11_update_keys(unsigned int *action);
 203         in_keystate |= x11_update_keys(&emu_act);
 204         emu_set_action(emu_act);
 205 #endif
 206 }
 207
 208 #define MAX_LAG_FRAMES 3
 209
 210 #define tvdiff(tv, tv_old) \
 211         ((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
 212 // assumes us < 1000000
 213 #define tvadd(tv, us) { \
 214         tv.tv_usec += us; \
 215         if (tv.tv_usec >= 1000000) { \
 216                 tv.tv_usec -= 1000000; \
 217                 tv.tv_sec++; \
 218         } \
 219 }
 220
 221 /* called on every vsync */
 222 void pl_frame_limit(void)
 223 {
 224         static struct timeval tv_old, tv_expect;
 225         static int vsync_cnt_prev;
 226         struct timeval now;
 227         int diff, usadj;
 228
 229         vsync_cnt++;
 230
 231         /* doing input here because the pad is polled
 232          * thousands of times per frame for some reason */
 233         update_input();
 234
 235         pcnt_end(PCNT_ALL);
 236         gettimeofday(&now, 0);
 237
 238         if (now.tv_sec != tv_old.tv_sec) {
 239                 diff = tvdiff(now, tv_old);
 240                 vsps_cur = 0.0f;
 241                 if (0 < diff && diff < 2000000)
 242                         vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
 243                 vsync_cnt_prev = vsync_cnt;
 244                 flips_per_sec = flip_cnt;
 245                 flip_cnt = 0;
 246                 tv_old = now;
 247                 if (g_opts & OPT_SHOWCPU)
 248                         tick_per_sec = get_cpu_ticks();
 249
 250                 if (hud_new_msg > 0) {
 251                         hud_new_msg--;
 252                         if (hud_new_msg == 0)
 253                                 hud_msg[0] = 0;
 254                 }
 255         }
 256 #ifdef PCNT
 257         static int ya_vsync_count;
 258         if (++ya_vsync_count == PCNT_FRAMES) {
 259                 pcnt_print(vsps_cur);
 260                 ya_vsync_count = 0;
 261         }
 262 #endif
 263
 264         tvadd(tv_expect, pl_frame_interval);
 265         diff = tvdiff(tv_expect, now);
 266         if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
 267                 //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
 268                 tv_expect = now;
 269                 diff = 0;
 270                 // try to align with vsync
 271                 usadj = vsync_usec_time;
 272                 while (usadj < tv_expect.tv_usec - pl_frame_interval)
 273                         usadj += pl_frame_interval;
 274                 tv_expect.tv_usec = usadj;
 275         }
 276
 277         if (!(g_opts & OPT_NO_FRAMELIM) && diff > pl_frame_interval) {
 278                 // yay for working usleep on pandora!
 279                 //printf("usleep %d\n", diff - pl_frame_interval / 2);
 280                 usleep(diff - pl_frame_interval / 2);
 281         }
 282
 283         if (pl_rearmed_cbs.frameskip) {
 284                 if (diff < -pl_frame_interval)
 285                         pl_rearmed_cbs.fskip_advice = 1;
 286                 else if (diff >= 0)
 287                         pl_rearmed_cbs.fskip_advice = 0;
 288         }
 289
 290         pcnt_start(PCNT_ALL);
 291 }
 292
 293 static void pl_text_out16_(int x, int y, const char *text)
 294 {
 295         int i, l, len = strlen(text), w = pl_fbdev_w;
 296         unsigned short *screen = (unsigned short *)pl_fbdev_buf + x + y * w;
 297         unsigned short val = 0xffff;
 298
 299         for (i = 0; i < len; i++, screen += 8)
 300         {
 301                 for (l = 0; l < 8; l++)
 302                 {
 303                         unsigned char fd = fontdata8x8[text[i] * 8 + l];
 304                         unsigned short *s = screen + l * w;
 305                         if (fd&0x80) s[0] = val;
 306                         if (fd&0x40) s[1] = val;
 307                         if (fd&0x20) s[2] = val;
 308                         if (fd&0x10) s[3] = val;
 309                         if (fd&0x08) s[4] = val;
 310                         if (fd&0x04) s[5] = val;
 311                         if (fd&0x02) s[6] = val;
 312                         if (fd&0x01) s[7] = val;
 313                 }
 314         }
 315 }
 316
 317 void pl_text_out16(int x, int y, const char *texto, ...)
 318 {
 319         va_list args;
 320         char    buffer[256];
 321
 322         va_start(args, texto);
 323         vsnprintf(buffer, sizeof(buffer), texto, args);
 324         va_end(args);
 325
 326         pl_text_out16_(x, y, buffer);
 327 }
 328
 329 static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
 330 {
 331         *x = g_layer_x;
 332         *y = g_layer_y;
 333         *w = g_layer_w;
 334         *h = g_layer_h;
 335 }
 336
 337 struct rearmed_cbs pl_rearmed_cbs = {
 338         pl_get_layer_pos,
 339         pl_fbdev_open,
 340         pl_fbdev_set_mode,
 341         pl_fbdev_flip,
 342         pl_fbdev_close,
 343 };
 344
 345 /* watchdog */
 346 static void *watchdog_thread(void *unused)
 347 {
 348         int vsync_cnt_old = 0;
 349         int seen_dead = 0;
 350         int sleep_time = 5;
 351
 352 #ifndef NDEBUG
 353         // don't interfere with debug
 354         return NULL;
 355 #endif
 356         while (1)
 357         {
 358                 sleep(sleep_time);
 359
 360                 if (stop) {
 361                         seen_dead = 0;
 362                         sleep_time = 5;
 363                         continue;
 364                 }
 365                 if (vsync_cnt != vsync_cnt_old) {
 366                         vsync_cnt_old = vsync_cnt;
 367                         seen_dead = 0;
 368                         sleep_time = 2;
 369                         continue;
 370                 }
 371
 372                 seen_dead++;
 373                 sleep_time = 1;
 374                 if (seen_dead > 1)
 375                         fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
 376                 if (seen_dead > 4) {
 377                         fprintf(stderr, "watchdog: lockup detected, aborting\n");
 378                         // we can't do any cleanup here really, the main thread is
 379                         // likely touching resources and would crash anyway
 380                         abort();
 381                 }
 382         }
 383 }
 384
 385 void pl_start_watchdog(void)
 386 {
 387         pthread_attr_t attr;
 388         pthread_t tid;
 389         int ret;
 390
 391         pthread_attr_init(&attr);
 392         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 393
 394         ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
 395         if (ret != 0)
 396                 fprintf(stderr, "could not start watchdog: %d\n", ret);
 397 }
 398