frontend/plugin_lib.c

   1 /*
   2  * (C) notaz, 2010
   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 <sys/time.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15 #include <fcntl.h>
  16 #include <unistd.h>
  17
  18 #include "plugin_lib.h"
  19 #include "linux/fbdev.h"
  20 #include "common/fonts.h"
  21 #include "common/input.h"
  22 #include "omap.h"
  23 #include "menu.h"
  24 #include "pcnt.h"
  25 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  26
  27 void *pl_fbdev_buf;
  28 int keystate;
  29 static int pl_fbdev_w, pl_fbdev_h, pl_fbdev_bpp;
  30 static int flip_cnt, flips_per_sec, tick_per_sec;
  31 extern float fps_cur; // XXX
  32
  33 static int get_cpu_ticks(void)
  34 {
  35         static unsigned long last_utime;
  36         static int fd;
  37         unsigned long utime, ret;
  38         char buf[128];
  39
  40         if (fd == 0)
  41                 fd = open("/proc/self/stat", O_RDONLY);
  42         lseek(fd, 0, SEEK_SET);
  43         buf[0] = 0;
  44         read(fd, buf, sizeof(buf));
  45         buf[sizeof(buf) - 1] = 0;
  46
  47         sscanf(buf, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %lu", &utime);
  48         ret = utime - last_utime;
  49         last_utime = utime;
  50         return ret;
  51 }
  52
  53 static void print_fps(void)
  54 {
  55         if (pl_fbdev_bpp == 16)
  56                 pl_text_out16(2, pl_fbdev_h - 10, "%2d %4.1f", flips_per_sec, fps_cur);
  57 }
  58
  59 static void print_cpu_usage(void)
  60 {
  61         if (pl_fbdev_bpp == 16)
  62                 pl_text_out16(pl_fbdev_w - 28, pl_fbdev_h - 10, "%3d", tick_per_sec);
  63 }
  64
  65 void *pl_fbdev_set_mode(int w, int h, int bpp)
  66 {
  67         void *ret;
  68
  69         if (w == pl_fbdev_w && h == pl_fbdev_h && bpp == pl_fbdev_bpp)
  70                 return 0;
  71
  72         pl_fbdev_w = w;
  73         pl_fbdev_h = h;
  74         pl_fbdev_bpp = bpp;
  75
  76         vout_fbdev_clear(layer_fb);
  77         ret = vout_fbdev_resize(layer_fb, w, h, bpp, 0, 0, 0, 0, 3);
  78         if (ret == NULL)
  79                 fprintf(stderr, "failed to set mode\n");
  80         else
  81                 pl_fbdev_buf = ret;
  82
  83         menu_notify_mode_change(w, h, bpp);
  84
  85         return pl_fbdev_buf;
  86 }
  87
  88 void *pl_fbdev_flip(void)
  89 {
  90         flip_cnt++;
  91
  92         if (pl_fbdev_buf != NULL) {
  93                 if (g_opts & OPT_SHOWFPS)
  94                         print_fps();
  95                 if (g_opts & OPT_SHOWCPU)
  96                         print_cpu_usage();
  97         }
  98
  99         // let's flip now
 100         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 101         return pl_fbdev_buf;
 102 }
 103
 104 int pl_fbdev_open(void)
 105 {
 106         pl_fbdev_buf = vout_fbdev_flip(layer_fb);
 107         omap_enable_layer(1);
 108         return 0;
 109 }
 110
 111 void pl_fbdev_close(void)
 112 {
 113         omap_enable_layer(0);
 114 }
 115
 116 static void update_input(void)
 117 {
 118         int actions[IN_BINDTYPE_COUNT] = { 0, };
 119
 120         in_update(actions);
 121         if (actions[IN_BINDTYPE_EMU] & PEV_MENU)
 122                 stop = 1;
 123         keystate = actions[IN_BINDTYPE_PLAYER12];
 124 }
 125
 126 /* called on every vsync */
 127 void pl_frame_limit(void)
 128 {
 129         extern void CheckFrameRate(void);
 130         static int oldsec;
 131         struct timeval tv;
 132
 133         /* doing input here because the pad is polled
 134          * thousands of times per frame for some reason */
 135         update_input();
 136
 137         pcnt_end(PCNT_ALL);
 138         gettimeofday(&tv, 0);
 139
 140         if (tv.tv_sec != oldsec) {
 141                 flips_per_sec = flip_cnt;
 142                 flip_cnt = 0;
 143                 oldsec = tv.tv_sec;
 144                 if (g_opts & OPT_SHOWCPU)
 145                         tick_per_sec = get_cpu_ticks();
 146         }
 147 #ifdef PCNT
 148         static int ya_vsync_count;
 149         if (++ya_vsync_count == PCNT_FRAMES) {
 150                 pcnt_print(fps_cur);
 151                 ya_vsync_count = 0;
 152         }
 153 #endif
 154
 155         CheckFrameRate();
 156
 157         pcnt_start(PCNT_ALL);
 158 }
 159
 160 static void pl_text_out16_(int x, int y, const char *text)
 161 {
 162         int i, l, len = strlen(text), w = pl_fbdev_w;
 163         unsigned short *screen = (unsigned short *)pl_fbdev_buf + x + y * w;
 164         unsigned short val = 0xffff;
 165
 166         for (i = 0; i < len; i++, screen += 8)
 167         {
 168                 for (l = 0; l < 8; l++)
 169                 {
 170                         unsigned char fd = fontdata8x8[text[i] * 8 + l];
 171                         unsigned short *s = screen + l * w;
 172                         if (fd&0x80) s[0] = val;
 173                         if (fd&0x40) s[1] = val;
 174                         if (fd&0x20) s[2] = val;
 175                         if (fd&0x10) s[3] = val;
 176                         if (fd&0x08) s[4] = val;
 177                         if (fd&0x04) s[5] = val;
 178                         if (fd&0x02) s[6] = val;
 179                         if (fd&0x01) s[7] = val;
 180                 }
 181         }
 182 }
 183
 184 void pl_text_out16(int x, int y, const char *texto, ...)
 185 {
 186         va_list args;
 187         char    buffer[256];
 188
 189         va_start(args, texto);
 190         vsnprintf(buffer, sizeof(buffer), texto, args);
 191         va_end(args);
 192
 193         pl_text_out16_(x, y, buffer);
 194 }
 195
 196 static void pl_get_layer_pos(int *x, int *y, int *w, int *h)
 197 {
 198         *x = g_layer_x;
 199         *y = g_layer_y;
 200         *w = g_layer_w;
 201         *h = g_layer_h;
 202 }
 203
 204 extern int UseFrameSkip; // hmh
 205
 206 const struct rearmed_cbs pl_rearmed_cbs = {
 207         pl_get_layer_pos,
 208         pl_fbdev_open,
 209         pl_fbdev_set_mode,
 210         pl_fbdev_flip,
 211         pl_fbdev_close,
 212         &UseFrameSkip,
 213 };
 214