Descent3/dd_lnxsound/ddlnxsound.h

/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef __LNX__DD_SOUND_H_
#define __LNX__DD_SOUND_H_

// #include <pthread.h>
#include "SDL_thread.h"

// Sound Library Internal Error Codes
#define SSL_OK 0
#define SSL_ERROR_GENERIC -1
#define SSL_ERROR_SAMPLE_NODATA -2
#define SSL_ERROR_STREAMMIXER -3

// Sound Status
#define SSF_UNUSED 0
#define SSF_PLAY_NORMAL 1
#define SSF_PLAY_LOOPING 2
#define SSF_PAUSED 4
#define SSF_PLAY_STREAMING 8
#define SSF_BUFFERED_LOOP 64
#define SSF_BUFFERED_STRM 128

#define SBT_PRIMARY 0
#define SBT_2D 1
#define SBT_3D 2

// looping methods
#define DSLOOP_SMART_METHOD 0
#define DSLOOP_BUFFER_METHOD 1
#define DSLOOP_STREAM_METHOD 2

#define DSBUFLOOP_INIT_STEP -1
#define DSBUFLOOP_LOOP_STEP 0
#define DSBUFLOOP_FINISH_STEP 1

// used to time threads.
#define DSPB_TICK_INTERVAL .01 // Primary buffer update rate (in seconds)
#define DSPB_TICK_MILLISECONDS (DSPB_TICK_INTERVAL * 1000)

typedef struct LNXSTREAMTAG {
  //	pthread_t thread_id;
  SDL_Thread *thread_id;
  unsigned int thread_handle;
  volatile bool thread_request_kill;
  volatile bool thread_alive;
  volatile bool thread_waiting_for_death;

  int *sound_device;

  void (*fp_SetError)(int code);
  void (*fp_ErrorText)(const char *fmt, ...);
  int *p_error_code;
} LNXSTREAM;

#endif