Method player

src/Engine/AdlibMusic.cpp:139–171

* Custom audio player. * @param udata User data to send to the player. * @param stream Raw audio to output. * @param len Length of audio to output. */

 * @param len Length of audio to output.
 */
void AdlibMusic::player(void *udata, Uint8 *stream, int len)
{
#ifndef __NO_MUSIC
	if (Options::musicVolume == 0)
		return;
	if (Options::musicAlwaysLoop && !func_is_music_playing())
	{
		AdlibMusic *music = (AdlibMusic*)udata;
		music->play();
		return;
	}
	while (len != 0)
	{
		if (!opl[0] || !opl[1])
			return;
		int i = std::min(delay, len);
		if (i)
		{
			float volume = Game::volumeExponent(Options::musicVolume);
			YM3812UpdateOne(opl[0], (INT16*)stream, i / 2, 2, volume);
			YM3812UpdateOne(opl[1], ((INT16*)stream) + 1, i / 2, 2, volume);
			stream += i;
			delay -= i;
			len -= i;
		}
		if (!len)
			return;
		func_play_tick();

		delay = delayRates[rate]; 
	}
#endif
}

}