dbc223eb84
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99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/*(LGPL)
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---------------------------------------------------------------------------
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asynccmd.h - Asynchronous Command Interface for the audio engine
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---------------------------------------------------------------------------
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* Copyright (C) 2001-2003, 2007 David Olofson
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _ASYNCCMD_H_
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#define _ASYNCCMD_H_
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#include "sfifo.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAX_COMMANDS 128
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/*----------------------------------------------------------
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Asynchronous command interface stuff
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----------------------------------------------------------*/
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typedef struct
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{
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enum
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{
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CMD_STOP = 0,
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CMD_STOP_ALL,
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CMD_PLAY,
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CMD_CCONTROL, /* Channel Control */
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CMD_GCONTROL, /* Group Control */
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CMD_MCONTROL, /* Mixer Control */
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CMD_WAIT /* Advance Audio Time */
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} action;
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signed char cid;
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unsigned char index;
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int tag;
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int arg1;
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int arg2;
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} command_t;
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extern sfifo_t commands;
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/*----------------------------------------------------------
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Mixer Control
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----------------------------------------------------------*/
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void audio_bus_controlf(unsigned bus, unsigned slot, unsigned ctl, float arg);
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void audio_bus_control(unsigned bus, unsigned slot, unsigned ctl, int arg);
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/*----------------------------------------------------------
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Group Control
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----------------------------------------------------------*/
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//void audio_group_default(unsigned gid, unsigned ctl, int arg);
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void audio_group_stop(unsigned gid);
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void audio_group_controlf(unsigned gid, unsigned ctl, float arg);
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void audio_group_control(unsigned gid, unsigned ctl, int arg);
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/*----------------------------------------------------------
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Channel Control
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----------------------------------------------------------*/
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void audio_channel_play(int cid, int tag, int pitch, int velocity);
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void audio_channel_controlf(int cid, int tag, int ctl, float arg);
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void audio_channel_control(int cid, int tag, int ctl, int arg);
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void audio_channel_stop(int cid, int tag); /* -1 to stop all */
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/*
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FIXME: Broken API. Broken implementation. It just "seems" to work.
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*/
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int audio_channel_playing(int cid);
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/*
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* Set audio time for subsequent calls to 'ms'.
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*/
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void audio_bump(unsigned ms);
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#ifdef __cplusplus
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};
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#endif
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#endif /*_ASYNCCMD_H_*/
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