Exemple #1
0
/* Initializes the XInput haptic system. */
static bool hapxi_init_haptic(void)
{
   int i;

   ASSERT(hapxi_mutex == NULL);
   ASSERT(hapxi_thread == NULL);
   ASSERT(hapxi_cond == NULL);


   /* Create the mutex and a condition vaiable. */
   hapxi_mutex = al_create_mutex_recursive();
   if (!hapxi_mutex)
      return false;
   hapxi_cond = al_create_cond();
   if (!hapxi_cond)
      return false;

   al_lock_mutex(hapxi_mutex);

   for (i = 0; i < HAPTICS_MAX; i++) {
      haptics[i].active = false;
   }

   /* Now start a polling background thread, since XInput is a polled API,
      and also to make it possible for effects to stop running when their
      duration has passed. */
   hapxi_thread = al_create_thread(hapxi_poll_thread, NULL);
   al_unlock_mutex(hapxi_mutex);
   if (hapxi_thread) al_start_thread(hapxi_thread);
   return(hapxi_thread != NULL);
}
Exemple #2
0
ALLEGRO_COND *
create_cond (void)
{
    ALLEGRO_COND *cond = al_create_cond ();
    if (! cond)
        error (-1, 0, "%s (void): failed to create condition variable",
               __func__);
    return cond;
}
Exemple #3
0
/* [user thread] */
static void *create_args(void)
{
   ARGS *args = al_malloc(sizeof(*args));
   if (args) {
      args->mutex = al_create_mutex();
      args->cond = al_create_cond();
      args->done = false;
      args->response = true;
   }
   return args;
}
Exemple #4
0
/* ljoy_init_joystick: [primary thread]
 *  Initialise the joystick driver.
 */
static bool ljoy_init_joystick(void)
{
    _al_vector_init(&joysticks, sizeof(ALLEGRO_JOYSTICK_LINUX *));
    num_joysticks = 0;

    if (!(config_mutex = al_create_mutex())) {
        return false;
    }

    // Scan for joysticks
    ljoy_scan(false);
    ljoy_merge();

#ifdef SUPPORT_HOTPLUG
    if (!(hotplug_mutex = al_create_mutex())) {
        al_destroy_mutex(config_mutex);
        return false;
    }
    if (!(hotplug_cond = al_create_cond())) {
        al_destroy_mutex(config_mutex);
        al_destroy_mutex(hotplug_mutex);
        return false;
    }
    if (!(hotplug_thread = al_create_thread(hotplug_proc, NULL))) {
        al_destroy_mutex(config_mutex);
        al_destroy_mutex(hotplug_mutex);
        al_destroy_cond(hotplug_cond);
        return false;
    }

    al_start_thread(hotplug_thread);

    inotify_fd = inotify_init();
    if (inotify_fd != -1) {
        fcntl(inotify_fd, F_SETFL, O_NONBLOCK);
        /* Modern Linux probably only needs to monitor /dev/input. */
        inotify_add_watch(inotify_fd, "/dev/input", IN_CREATE|IN_DELETE);
        _al_unix_start_watching_fd(inotify_fd, ljoy_config_dev_changed, NULL);
        ALLEGRO_INFO("Hotplugging enabled\n");
    }
    else {
        ALLEGRO_WARN("Hotplugging not enabled\n");
        if (inotify_fd != -1) {
            close(inotify_fd);
            inotify_fd = -1;
        }
    }
#endif

    return true;
}
/* Function: al_open_native_text_log
 */
ALLEGRO_TEXTLOG *al_open_native_text_log(char const *title, int flags)
{
   ALLEGRO_NATIVE_DIALOG *textlog = NULL;

   /* Avoid warnings when log windows are unimplemented. */
   (void)title;
   (void)flags;

   textlog = al_calloc(1, sizeof *textlog);
   textlog->title = al_ustr_new(title);
   textlog->flags = flags;
   if (TEXT_LOG_EXTRA_THREAD) {
      textlog->tl_thread = al_create_thread(text_log_thread_proc, textlog);
   }
   textlog->tl_text_cond = al_create_cond();
   textlog->tl_text_mutex = al_create_mutex();
   textlog->tl_pending_text = al_ustr_new("");
   al_init_user_event_source(&textlog->tl_events);

   textlog->tl_init_error = false;
   textlog->tl_done = false;

   if (TEXT_LOG_EXTRA_THREAD) {
      /* Unlike the other dialogs, this one never blocks as the intended
       * use case is a log window running in the background for debugging
       * purposes when no console can be used. Therefore we have it run
       * in a separate thread.
       */
      al_start_thread(textlog->tl_thread);
      al_lock_mutex(textlog->tl_text_mutex);
      while (!textlog->tl_done && !textlog->tl_init_error) {
         al_wait_cond(textlog->tl_text_cond, textlog->tl_text_mutex);
      }
      al_unlock_mutex(textlog->tl_text_mutex);
   }
   else {
      textlog->tl_init_error = !_al_open_native_text_log(textlog);
   }

   if (textlog->tl_init_error) {
      al_close_native_text_log((ALLEGRO_TEXTLOG *)textlog);
      return NULL;
   }

   _al_register_destructor(_al_dtor_list, textlog,
      (void (*)(void *))al_close_native_text_log);

   return (ALLEGRO_TEXTLOG *)textlog;
}
Exemple #6
0
/* [user thread] */
bool _al_gtk_init_args(void *ptr, size_t size)
{
   ARGS_BASE *args = (ARGS_BASE *)ptr;
   memset(args, 0, size);
   args->mutex = al_create_mutex();
   if (!args->mutex) {
      return false;
   }
   args->cond = al_create_cond();
   if (!args->cond) {
      al_destroy_mutex(args->mutex);
      return false;
   }
   args->done = false;
   args->response = true;
   return args;
}
Exemple #7
0
/* al_init will call this. */
ALLEGRO_SYSTEM *iphone_initialize(int flags)
{
    (void)flags;
    iphone = al_calloc(1, sizeof *iphone);
    
    ALLEGRO_SYSTEM *sys = &iphone->system;

    iphone->mutex = al_create_mutex();
    iphone->cond = al_create_cond();
    sys->vt = _al_get_iphone_system_interface();
    _al_vector_init(&sys->displays, sizeof (ALLEGRO_DISPLAY_IPHONE *));

    _al_unix_init_time();
    _al_iphone_init_path();

    return sys;
}
Exemple #8
0
/* Function: al_create_voice
 */
ALLEGRO_VOICE *al_create_voice(unsigned int freq,
   ALLEGRO_AUDIO_DEPTH depth, ALLEGRO_CHANNEL_CONF chan_conf)
{
   ALLEGRO_VOICE *voice = NULL;

   if (!freq) {
      _al_set_error(ALLEGRO_INVALID_PARAM, "Invalid Voice Frequency");
      return NULL;
   }

   voice = al_calloc(1, sizeof(*voice));
   if (!voice) {
      return NULL;
   }

   voice->depth     = depth;
   voice->chan_conf = chan_conf;
   voice->frequency = freq;

   voice->mutex = al_create_mutex();
   voice->cond = al_create_cond();
   /* XXX why is this needed? there should only be one active driver */
   voice->driver = _al_kcm_driver;

   ASSERT(_al_kcm_driver);
   if (_al_kcm_driver->allocate_voice(voice) != 0) {
      al_destroy_mutex(voice->mutex);
      al_destroy_cond(voice->cond);
      al_free(voice);
      return NULL;
   }

   _al_kcm_register_destructor("voice", voice,
      (void (*)(void *)) al_destroy_voice);

   return voice;
}
Exemple #9
0
int main(void)
{
   ALLEGRO_THREAD *thread[NUM_THREADS];
   ALLEGRO_DISPLAY *display;
   ALLEGRO_TIMER *timer;
   ALLEGRO_EVENT_QUEUE *queue;
   ALLEGRO_EVENT event;
   bool need_draw;
   int i;

   for (i = 0; i < 256; i++) {
      sin_lut[i] = 128 + (int) (127.0 * sin(i / 8.0));
   }

   if (!al_init()) {
      abort_example("Could not init Allegro.\n");
      return 1;
   }

   al_install_keyboard();
   al_install_mouse();
   display = al_create_display(W * IMAGES_PER_ROW,
      H * NUM_THREADS / IMAGES_PER_ROW);
   if (!display) {
      abort_example("Error creating display\n");
      return 1;
   }
   timer = al_install_timer(1.0/3);
   if (!timer) {
      abort_example("Error creating timer\n");
      return 1;
   }
   queue = al_create_event_queue();
   if (!queue) {
      abort_example("Error creating event queue\n");
      return 1;
   }
   al_register_event_source(queue, al_get_display_event_source(display));
   al_register_event_source(queue, al_get_keyboard_event_source());
   al_register_event_source(queue, al_get_mouse_event_source());
   al_register_event_source(queue, al_get_timer_event_source(timer));

   /* Note:
    * Right now, A5 video displays can only be accessed from the thread which
    * created them (at lesat for OpenGL). To lift this restriction, we could
    * keep track of the current OpenGL context for each thread and make all
    * functions accessing the display check for it.. not sure it's worth the
    * additional complexity though.
    */
   al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_RGB_888);
   al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP);
   for (i = 0; i < NUM_THREADS; i++) {
      thread_info[i].bitmap = al_create_bitmap(W, H);
      if (!thread_info[i].bitmap) {
         goto Error;
      }
      thread_info[i].mutex = al_create_mutex();
      if (!thread_info[i].mutex) {
         goto Error;
      }
      thread_info[i].cond = al_create_cond();
      if (!thread_info[i].cond) {
         goto Error;
      }
      thread_info[i].is_paused = false;
      thread_info[i].random_seed = i;
      thread[i] = al_create_thread(thread_func, &thread_info[i]);
      if (!thread[i]) {
         goto Error;
      }
   }
   set_target(0, -0.56062033041600878303, -0.56064322926933807256);
   set_target(1, -0.57798076669230014080, -0.63449861991138123418);
   set_target(2,  0.36676836392830602929, -0.59081385302214906030);
   set_target(3, -1.48319283039401317303, -0.00000000200514696273);
   set_target(4, -0.74052910500707636032,  0.18340899525730713915);
   set_target(5,  0.25437906525768350097, -0.00046678223345789554);
   set_target(6, -0.56062033041600878303,  0.56064322926933807256);
   set_target(7, -0.57798076669230014080,  0.63449861991138123418);
   set_target(8,  0.36676836392830602929,  0.59081385302214906030);

   for (i = 0; i < NUM_THREADS; i++) {
      al_start_thread(thread[i]);
   }
   al_start_timer(timer);

   need_draw = true;
   while (true) {
      if (need_draw && al_event_queue_is_empty(queue)) {
         show_images();
         need_draw = false;
      }

      al_wait_for_event(queue, &event);
      if (event.type == ALLEGRO_EVENT_TIMER) {
         need_draw = true;
      }
      else if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN) {
         int n = (event.mouse.y / H) * IMAGES_PER_ROW + (event.mouse.x / W);
         if (n < NUM_THREADS) {
            double x = event.mouse.x - (event.mouse.x / W) * W;
            double y = event.mouse.y - (event.mouse.y / H) * H;
            /* Center to the mouse click position. */
            if (thread_info[n].is_paused) {
               thread_info[n].target_x = x / W - 0.5;
               thread_info[n].target_y = y / H - 0.5;
            }
            toggle_pausedness(n);
         }
      }
      else if (event.type == ALLEGRO_EVENT_DISPLAY_EXPOSE) {
         need_draw = true;
      }
      else if (event.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
         break;
      }
      else if (event.type == ALLEGRO_EVENT_KEY_DOWN) {
         if (event.keyboard.keycode == ALLEGRO_KEY_ESCAPE) {
            break;
         }
         need_draw = true;
      }
   }

   for (i = 0; i < NUM_THREADS; i++) {
      /* Set the flag to stop the thread.  The thread might be waiting on a
       * condition variable, so signal the condition to force it to wake up.
       */
      al_set_thread_should_stop(thread[i]);
      al_lock_mutex(thread_info[i].mutex);
      al_broadcast_cond(thread_info[i].cond);
      al_unlock_mutex(thread_info[i].mutex);

      /* al_destroy_thread() implicitly joins the thread, so this call is not
       * strictly necessary.
       */
      al_join_thread(thread[i], NULL);
      al_destroy_thread(thread[i]);
   }

   al_destroy_event_queue(queue);
   al_uninstall_timer(timer);
   al_destroy_display(display);

   return 0;

Error:

   return 1;
}
Exemple #10
0
static void packet_queue_init(PacketQueue * q)
{
   memset(q, 0, sizeof(PacketQueue));
   q->mutex = al_create_mutex();
   q->cond = al_create_cond();
}
Exemple #11
0
static bool open_video(ALLEGRO_VIDEO *video)
{
   VideoState *is = av_mallocz(sizeof *is);
   int i;
   AVRational fps;

   is->video = video;
   
   init();
   
   video->data = is;
   strncpy(is->filename, al_path_cstr(video->filename, '/'),
      sizeof(is->filename));
   
   is->av_sync_type = DEFAULT_AV_SYNC_TYPE;

   // Open video file
   #ifdef FFMPEG_0_8
   if (avformat_open_input(&is->format_context, is->filename, NULL,
      NULL) != 0) { 	
   #else
   if (av_open_input_file(&is->format_context, is->filename, NULL, 0,
      NULL) != 0) {
   #endif
      av_free(is);
      return false;
   }

   if (av_find_stream_info(is->format_context) < 0) {
      av_free(is);
      return false;
   }

   is->video_index = -1;
   is->audio_index = -1;
   for (i = 0; i < (int)is->format_context->nb_streams; i++) {
      if (is->format_context->streams[i]->codec->codec_type
         == AVMEDIA_TYPE_VIDEO && is->video_index < 0)
      {
         is->video_index = i;
      }
      if (is->format_context->streams[i]->codec->codec_type
         == AVMEDIA_TYPE_AUDIO && is->audio_index < 0)
      {
         is->audio_index = i;
      }
   }
   
   fps = is->format_context->streams[is->video_index]->r_frame_rate;
   video->fps = (double)fps.num / fps.den;
   video->audio_rate = is->format_context->streams[is->audio_index]->
      codec->sample_rate;
   video->width = is->format_context->streams[is->video_index]->codec->width;
   video->height = is->format_context->streams[is->video_index]->codec->height;

   is->pictq_mutex = al_create_mutex();
   is->pictq_cond = al_create_cond();
   
   is->timer_mutex = al_create_mutex();
   is->timer_cond = al_create_cond();

   return true;
}

static bool close_video(ALLEGRO_VIDEO *video)
{
   VideoState *is = video->data;
   
   is->quit = true;
   
   if (is->timer_thread) {
   
      al_lock_mutex(is->timer_mutex);
      al_signal_cond(is->timer_cond);
      al_unlock_mutex(is->timer_mutex);
   
      al_join_thread(is->timer_thread, NULL);
   }
   
   if (is->parse_thread) {
      al_join_thread(is->parse_thread, NULL);
   }

   al_destroy_mutex(is->timer_mutex);
   al_destroy_cond(is->timer_cond);

   av_free(is);
   return true;
}
Exemple #12
0
static int pulseaudio_allocate_voice(ALLEGRO_VOICE *voice)
{
   PULSEAUDIO_VOICE *pv = al_malloc(sizeof(PULSEAUDIO_VOICE));
   pa_sample_spec ss;
   pa_buffer_attr ba;

   ss.channels = al_get_channel_count(voice->chan_conf);
   ss.rate = voice->frequency;

   if (voice->depth == ALLEGRO_AUDIO_DEPTH_UINT8)
      ss.format = PA_SAMPLE_U8;
   else if (voice->depth == ALLEGRO_AUDIO_DEPTH_INT16)
      ss.format = PA_SAMPLE_S16NE;
#if PA_API_VERSION > 11
   else if (voice->depth == ALLEGRO_AUDIO_DEPTH_INT24)
      ss.format = PA_SAMPLE_S24NE;
#endif
   else if (voice->depth == ALLEGRO_AUDIO_DEPTH_FLOAT32)
      ss.format = PA_SAMPLE_FLOAT32NE;
   else {
      ALLEGRO_ERROR("Unsupported PulseAudio sound format.\n");
      al_free(pv);
      return 1;
   }

   ba.maxlength = 0x10000; // maximum length of buffer
   ba.tlength   = 0x2000;  // target length of buffer
   ba.prebuf    = -1;      // minimum data size required before playback starts
                           // set to -1 to work with the simple API.
   ba.minreq    = 0;       // minimum size of request 
   ba.fragsize  = -1;      // fragment size (recording)

   pv->s = pa_simple_new(
      NULL,                // Use the default server.
      al_get_app_name(),     
      PA_STREAM_PLAYBACK,
      NULL,                // Use the default device.
      "Allegro Voice",    
      &ss,                
      NULL,                // Use default channel map
      &ba,                
      NULL                 // Ignore error code.
   );

   if (!pv->s) {
      al_free(pv);
      return 1;
   }

   voice->extra = pv;

   pv->buffer_size_in_frames = get_buffer_size(al_get_system_config());
   pv->frame_size_in_bytes = ss.channels * al_get_audio_depth_size(voice->depth);

   pv->status = PV_IDLE;
   //pv->status_mutex = al_create_mutex();
   pv->status_cond = al_create_cond();
   pv->buffer_mutex = al_create_mutex();

   pv->poll_thread = al_create_thread(pulseaudio_update, (void*)voice);
   al_start_thread(pv->poll_thread);

   return 0;
}
Exemple #13
0
 DATA() : mutex(al_create_mutex()),
          cond(al_create_cond()),
          posiX (0),
          posiY (0),
          modi_X(false),
          ready (false) {}