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], in_a2[2];
  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 plugin_skip_advice;
  38 // P.E.Op.S.
  39 extern int UseFrameSkip;
  40 extern float fps_skip;
  41
  42 static int get_cpu_ticks(void)
  43 {
  44         static unsigned long last_utime;
  45         static int fd;
  46         unsigned long utime, ret;
  47         char buf[128];
  48
  49         if (fd == 0)
  50                 fd = open("/proc/self/stat", O_RDONLY);
  51         lseek(fd, 0, SEEK_SET);
  52         buf[0] = 0;
  53         read(fd, buf, sizeof(buf));
  54         buf[sizeof(buf) - 1] = 0;
  55
  56         sscanf(buf, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu", &utime);
  57         ret = utime - last_utime;
  58         last_utime = utime;
  59         return ret;
  60 }
  61
  62 static void print_hud(void)
  63 {
  64         if (pl_fbdev_bpp == 16)
  65                 pl_text_out16(2, pl_fbdev_h - 10, "%s", hud_msg);
  66 }
  67
  68 static void print_fps(void)
  69 {
  70         if (pl_fbdev_bpp == 16)
  71                 pl_text_out16(2, pl_fbdev_h - 10, "%2d %4.1f", flips_per_sec, vsps_cur);
  72 }
  73
  74 static void print_cpu_usage(void)
  75 {
  76         if (pl_fbdev_bpp == 16)
  77                 pl_text_out16(pl_fbdev_w - 28, pl_fbdev_h - 10, "%3d", tick_per_sec);
  78 }
  79
  80 void *pl_fbdev_set_mode(int w, int h, int bpp)
  81 {
  82         void *ret;
  83
  84         if (w == pl_fbdev_w && h == pl_fbdev_h && bpp == pl_fbdev_bpp)
  85                 return pl_fbdev_buf;
  86
  87         pl_fbdev_w = w;
  88         pl_fbdev_h = h;
  89         pl_fbdev_bpp = bpp;
  90
  91         vout_fbdev_clear(layer_fb);
  92         ret = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
  93         if (ret == NULL)
  94                 fprintf(stderr, "failed to set mode\n");
  95         else
  96                 pl_fbdev_buf = ret;
  97
  98         menu_notify_mode_change(w, h, bpp);
  99
 100         return pl_fbdev_buf;
 101 }
 102
 103 void *pl_fbdev_flip(void)
 104 {
 105         flip_cnt++;
 106
 107         if (pl_fbdev_buf != NULL) {
 108                 if (hud_msg[0] != 0)
 109                         print_hud();
 110                 else if (g_opts & OPT_SHOWFPS)
 111                         print_fps();
 112
 113                 if (g_opts & OPT_SHOWCPU)
 114                         print_cpu_usage();
 115         }
 116
 117         // let's flip now
 118         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 119         return pl_fbdev_buf;
 120 }
 121
 122 int pl_fbdev_open(void)
 123 {
 124         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 125         omap_enable_layer(1);
 126         return 0;
 127 }
 128
 129 void pl_fbdev_close(void)
 130 {
 131         omap_enable_layer(0);
 132 }
 133
 134 static void update_input(void)
 135 {
 136         int actions[IN_BINDTYPE_COUNT] = { 0, };
 137         unsigned int emu_act;
 138
 139         in_update(actions);
 140         if (in_type == PSE_PAD_TYPE_ANALOGPAD)
 141                 in_update_analogs();
 142         emu_act = actions[IN_BINDTYPE_EMU];
 143         if (emu_act) {
 144                 int which = 0;
 145                 for (; !(emu_act & 1); emu_act >>= 1, which++)
 146                         ;
 147                 emu_act = which;
 148         }
 149         emu_set_action(emu_act);
 150
 151         in_keystate = actions[IN_BINDTYPE_PLAYER12];
 152
 153 #ifdef X11
 154         extern int x11_update_keys(void);
 155         in_keystate |= x11_update_keys();
 156 #endif
 157 }
 158
 159 #define MAX_LAG_FRAMES 3
 160
 161 #define tvdiff(tv, tv_old) \
 162         ((tv.tv_sec - tv_old.tv_sec) * 1000000 + tv.tv_usec - tv_old.tv_usec)
 163 // assumes us < 1000000
 164 #define tvadd(tv, us) { \
 165         tv.tv_usec += us; \
 166         if (tv.tv_usec >= 1000000) { \
 167                 tv.tv_usec -= 1000000; \
 168                 tv.tv_sec++; \
 169         } \
 170 }
 171
 172 /* called on every vsync */
 173 void pl_frame_limit(void)
 174 {
 175         static struct timeval tv_old, tv_expect;
 176         static int vsync_cnt_prev;
 177         struct timeval now;
 178         int diff;
 179
 180         vsync_cnt++;
 181
 182         /* doing input here because the pad is polled
 183          * thousands of times per frame for some reason */
 184         update_input();
 185
 186         pcnt_end(PCNT_ALL);
 187         gettimeofday(&now, 0);
 188
 189         if (now.tv_sec != tv_old.tv_sec) {
 190                 diff = tvdiff(now, tv_old);
 191                 vsps_cur = 0.0f;
 192                 if (0 < diff && diff < 2000000)
 193                         vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
 194                 vsync_cnt_prev = vsync_cnt;
 195                 flips_per_sec = flip_cnt;
 196                 flip_cnt = 0;
 197                 tv_old = now;
 198                 if (g_opts & OPT_SHOWCPU)
 199                         tick_per_sec = get_cpu_ticks();
 200
 201                 if (hud_new_msg > 0) {
 202                         hud_new_msg--;
 203                         if (hud_new_msg == 0)
 204                                 hud_msg[0] = 0;
 205                 }
 206         }
 207 #ifdef PCNT
 208         static int ya_vsync_count;
 209         if (++ya_vsync_count == PCNT_FRAMES) {
 210                 pcnt_print(vsps_cur);
 211                 ya_vsync_count = 0;
 212         }
 213 #endif
 214
 215         tvadd(tv_expect, pl_frame_interval);
 216         diff = tvdiff(tv_expect, now);
 217         if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
 218                 //printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
 219                 tv_expect = now;
 220                 diff = 0;
 221         }
 222
 223         if (!(g_opts & OPT_NO_FRAMELIM) && diff > pl_frame_interval) {
 224                 // yay for working usleep on pandora!
 225                 //printf("usleep %d\n", diff - pl_frame_interval / 2);
 226                 usleep(diff - pl_frame_interval / 2);
 227         }
 228
 229         plugin_skip_advice = 0;
 230         if (UseFrameSkip && diff < -pl_frame_interval) {
 231                 // P.E.Op.S. makes skip decision based on this
 232                 fps_skip = 1.0f;
 233                 plugin_skip_advice = 1;
 234         }
 235
 236         pcnt_start(PCNT_ALL);
 237 }
 238
 239 static void pl_text_out16_(int x, int y, const char *text)
 240 {
 241         int i, l, len = strlen(text), w = pl_fbdev_w;
 242         unsigned short *screen = (unsigned short *)pl_fbdev_buf + x + y * w;
 243         unsigned short val = 0xffff;
 244
 245         for (i = 0; i < len; i++, screen += 8)
 246         {
 247                 for (l = 0; l < 8; l++)
 248                 {
 249                         unsigned char fd = fontdata8x8[text[i] * 8 + l];
 250                         unsigned short *s = screen + l * w;
 251                         if (fd&0x80) s[0] = val;
 252                         if (fd&0x40) s[1] = val;
 253                         if (fd&0x20) s[2] = val;
 254                         if (fd&0x10) s[3] = val;
 255                         if (fd&0x08) s[4] = val;
 256                         if (fd&0x04) s[5] = val;
 257                         if (fd&0x02) s[6] = val;
 258                         if (fd&0x01) s[7] = val;
 259                 }
 260         }
 261 }
 262
 263 void pl_text_out16(int x, int y, const char *texto, ...)
 264 {
 265         va_list args;
 266         char    buffer[256];
 267
 268         va_start(args, texto);
 269         vsnprintf(buffer, sizeof(buffer), texto, args);
 270         va_end(args);
 271
 272         pl_text_out16_(x, y, buffer);
 273 }
 274
 275 static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
 276 {
 277         *x = g_layer_x;
 278         *y = g_layer_y;
 279         *w = g_layer_w;
 280         *h = g_layer_h;
 281 }
 282
 283 const struct rearmed_cbs pl_rearmed_cbs = {
 284         pl_get_layer_pos,
 285         pl_fbdev_open,
 286         pl_fbdev_set_mode,
 287         pl_fbdev_flip,
 288         pl_fbdev_close,
 289         &plugin_skip_advice,
 290 };
 291
 292 /* watchdog */
 293 static void *watchdog_thread(void *unused)
 294 {
 295         int vsync_cnt_old = 0;
 296         int seen_dead = 0;
 297         int sleep_time = 5;
 298
 299 #ifndef NDEBUG
 300         // don't interfere with debug
 301         return NULL;
 302 #endif
 303         while (1)
 304         {
 305                 sleep(sleep_time);
 306
 307                 if (stop) {
 308                         seen_dead = 0;
 309                         sleep_time = 5;
 310                         continue;
 311                 }
 312                 if (vsync_cnt != vsync_cnt_old) {
 313                         vsync_cnt_old = vsync_cnt;
 314                         seen_dead = 0;
 315                         sleep_time = 2;
 316                         continue;
 317                 }
 318
 319                 seen_dead++;
 320                 sleep_time = 1;
 321                 if (seen_dead > 1)
 322                         fprintf(stderr, "watchdog: seen_dead %d\n", seen_dead);
 323                 if (seen_dead > 4) {
 324                         fprintf(stderr, "watchdog: lockup detected, aborting\n");
 325                         // we can't do any cleanup here really, the main thread is
 326                         // likely touching resources and would crash anyway
 327                         abort();
 328                 }
 329         }
 330 }
 331
 332 void pl_start_watchdog(void)
 333 {
 334         pthread_attr_t attr;
 335         pthread_t tid;
 336         int ret;
 337
 338         pthread_attr_init(&attr);
 339         pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 340
 341         ret = pthread_create(&tid, &attr, watchdog_thread, NULL);
 342         if (ret != 0)
 343                 fprintf(stderr, "could not start watchdog: %d\n", ret);
 344 }
 345