fifo.c

   1 #include "input/mouse.h"
   2
   3 #if 0
   4
   5 // keyboard:
   6 static int keyb_fifo_put=-1;
   7 static int keyb_fifo_get=-1;
   8
   9 static void set_nonblock_flag(int fd) {
  10   int oldflags;
  11
  12   oldflags = fcntl(fd, F_GETFL, 0);
  13   if (oldflags != -1) {
  14     if (fcntl(keyb_fifo_put, F_SETFL, oldflags | O_NONBLOCK) != -1) {
  15        return;
  16     }
  17   }
  18   mp_msg(MSGT_INPUT,MSGL_ERR,"Cannot set nonblocking mode for fd %d!\n", fd);
  19 }
  20
  21 static void make_pipe(int* pr,int* pw){
  22   int temp[2];
  23   if(pipe(temp)!=0) mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_CannotMakePipe);
  24   *pr=temp[0];
  25   *pw=temp[1];
  26   set_nonblock_flag(temp[1]);
  27 }
  28
  29 static void mplayer_put_key_internal(int code){
  30
  31     if( write(keyb_fifo_put,&code,4) != 4 ){
  32         mp_msg(MSGT_INPUT,MSGL_ERR,"*** key event dropped (FIFO is full) ***\n");
  33     }
  34 }
  35
  36 #else
  37
  38 int key_fifo_size = 10;
  39 static int *key_fifo_data = NULL;
  40 static int key_fifo_read=0;
  41 static int key_fifo_write=0;
  42
  43 static void mplayer_put_key_internal(int code){
  44 //  printf("mplayer_put_key(%d)\n",code);
  45   if (key_fifo_data == NULL)
  46     key_fifo_data = malloc(key_fifo_size * sizeof(int));
  47   if(((key_fifo_write+1)%key_fifo_size)==key_fifo_read) return; // FIFO FULL!!
  48   key_fifo_data[key_fifo_write]=code;
  49   key_fifo_write=(key_fifo_write+1)%key_fifo_size;
  50 }
  51
  52 int mplayer_get_key(int fd){
  53   int key;
  54 //  printf("mplayer_get_key(%d)\n",fd);
  55   if (key_fifo_data == NULL)
  56     return MP_INPUT_NOTHING;
  57   if(key_fifo_write==key_fifo_read) return MP_INPUT_NOTHING;
  58   key=key_fifo_data[key_fifo_read];
  59   key_fifo_read=(key_fifo_read+1)%key_fifo_size;
  60 //  printf("mplayer_get_key => %d\n",key);
  61   return key;
  62 }
  63
  64 #endif
  65
  66 static unsigned doubleclick_time = 300;
  67
  68 static void put_double(int code) {
  69   if (code >= MOUSE_BTN0 && code <= MOUSE_BTN9)
  70     mplayer_put_key_internal(code - MOUSE_BTN0 + MOUSE_BTN0_DBL);
  71 }
  72
  73 void mplayer_put_key(int code) {
  74   static unsigned last_key_time[2];
  75   static int last_key[2];
  76   unsigned now = GetTimerMS();
  77   // ignore system-doubleclick if we generate these events ourselves
  78   if (doubleclick_time &&
  79       (code & ~MP_KEY_DOWN) >= MOUSE_BTN0_DBL &&
  80       (code & ~MP_KEY_DOWN) <= MOUSE_BTN9_DBL)
  81     return;
  82   // ignore mouse wheel down events since they can easily get stuck
  83   if (code < (MOUSE_BTN3 | MP_KEY_DOWN) || code > (MOUSE_BTN4 | MP_KEY_DOWN))
  84   mplayer_put_key_internal(code);
  85   if (code & MP_KEY_DOWN) {
  86     code &= ~MP_KEY_DOWN;
  87     last_key[1] = last_key[0];
  88     last_key[0] = code;
  89     last_key_time[1] = last_key_time[0];
  90     last_key_time[0] = now;
  91     if (last_key[1] == code &&
  92         now - last_key_time[1] < doubleclick_time)
  93       put_double(code);
  94     return;
  95   }
  96   if (last_key[0] == code && last_key[1] == code &&
  97       now - last_key_time[1] < doubleclick_time)
  98     put_double(code);
  99 }