static void event_handler(const ALLEGRO_EVENT * event)
{
int i;
switch (event->type) {
/* Was the X button on the window pressed? */
case ALLEGRO_EVENT_DISPLAY_CLOSE:
exiting = true;
break;
/* Was a key pressed? */
case ALLEGRO_EVENT_KEY_CHAR:
if (event->keyboard.keycode == ALLEGRO_KEY_LEFT) {
double pos = al_get_audio_stream_position_secs(music_stream);
pos -= 5.0;
if (pos < 0.0)
pos = 0.0;
al_seek_audio_stream_secs(music_stream, pos);
}
else if (event->keyboard.keycode == ALLEGRO_KEY_RIGHT) {
double pos = al_get_audio_stream_position_secs(music_stream);
pos += 5.0;
if (!al_seek_audio_stream_secs(music_stream, pos))
printf("seek error!\n");
}
else if (event->keyboard.keycode == ALLEGRO_KEY_SPACE) {
bool playing;
playing = al_get_mixer_playing(al_get_default_mixer());
playing = !playing;
al_set_mixer_playing(al_get_default_mixer(), playing);
}
else if (event->keyboard.keycode == ALLEGRO_KEY_ESCAPE) {
exiting = true;
}
break;
case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN:
mouse_button[event->mouse.button] = 1;
maybe_fiddle_sliders(event->mouse.x, event->mouse.y);
break;
case ALLEGRO_EVENT_MOUSE_AXES:
maybe_fiddle_sliders(event->mouse.x, event->mouse.y);
break;
case ALLEGRO_EVENT_MOUSE_BUTTON_UP:
mouse_button[event->mouse.button] = 0;
break;
case ALLEGRO_EVENT_MOUSE_LEAVE_DISPLAY:
for (i = 0; i < 16; i++)
mouse_button[i] = 0;
break;
/* Is it time for the next timer tick? */
case ALLEGRO_EVENT_TIMER:
logic();
render();
break;
}
}
static void render(void)
{
double pos = al_get_audio_stream_position_secs(music_stream);
double length = al_get_audio_stream_length_secs(music_stream);
double w = al_get_display_width(display) - 20;
double loop_start_pos = w * (loop_start / length);
double loop_end_pos = w * (loop_end / length);
ALLEGRO_COLOR c = al_map_rgb(255, 255, 255);
al_clear_to_color(al_map_rgb(64, 64, 128));
/* render "music player" */
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
al_draw_textf(basic_font, c, 0, 0, 0, "Playing %s", stream_filename);
print_time(8, 24, pos);
al_draw_textf(basic_font, c, 100, 24, 0, "/");
print_time(110, 24, length);
al_draw_filled_rectangle(10.0, 48.0 + 7.0, 10.0 + w, 48.0 + 9.0, al_map_rgb(0, 0, 0));
al_draw_line(10.0 + loop_start_pos, 46.0, 10.0 + loop_start_pos, 66.0, al_map_rgb(0, 168, 128), 0);
al_draw_line(10.0 + loop_end_pos, 46.0, 10.0 + loop_end_pos, 66.0, al_map_rgb(255, 0, 0), 0);
al_draw_filled_rectangle(10.0 + slider_pos - 2.0, 48.0, 10.0 + slider_pos + 2.0, 64.0,
al_map_rgb(224, 224, 224));
/* show help */
al_draw_textf(basic_font, c, 0, 96, 0, "Drag the slider to seek.");
al_draw_textf(basic_font, c, 0, 120, 0, "Middle-click to set loop start.");
al_draw_textf(basic_font, c, 0, 144, 0, "Right-click to set loop end.");
al_draw_textf(basic_font, c, 0, 168, 0, "Left/right arrows to seek.");
al_draw_textf(basic_font, c, 0, 192, 0, "Space to pause.");
al_flip_display();
}
static void logic(void)
{
/* calculate the position of the slider */
double w = al_get_display_width(display) - 20;
double pos = al_get_audio_stream_position_secs(music_stream);
double len = al_get_audio_stream_length_secs(music_stream);
slider_pos = w * (pos / len);
}
static int allua_audio_stream_get_position_secs(lua_State * L)
{
ALLUA_audio_stream audio_stream = allua_check_audio_stream(L, 1);
lua_pushnumber(L, al_get_audio_stream_position_secs(audio_stream));
return 1;
}
void AudioStream::pause()
{
al_set_audio_stream_playing(m_stream, false);
m_lastPause = al_get_audio_stream_position_secs(m_stream);
}
int
get_sound_seek(sound_t* sound)
{
return al_get_audio_stream_position_secs(sound->stream) * 1000;
}
