141 lines
4.5 KiB
C
141 lines
4.5 KiB
C
/*
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This file is part of Warzone 2100.
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Copyright (C) 1999-2004 Eidos Interactive
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Copyright (C) 2005-2011 Warzone 2100 Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __INCLUDED_LIB_SOUND_TRACK_H__
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#define __INCLUDED_LIB_SOUND_TRACK_H__
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#include "lib/framework/frame.h"
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#include <physfs.h>
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#ifndef WZ_NOSOUND
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# ifdef WZ_OS_MAC
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# include <OpenAL/al.h>
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# else
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# include <AL/al.h>
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# endif
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#endif
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#define ATTENUATION_FACTOR 0.0003f
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#define SAMPLE_NOT_ALLOCATED -1
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#define SAMPLE_NOT_FOUND -3
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#define SAMPLE_COORD_INVALID -5
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#define AUDIO_VOL_MAX 100L
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/* typedefs
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*/
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typedef bool (* AUDIO_CALLBACK) ( void *psObj );
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struct AUDIO_STREAM;
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/* structs */
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struct SIMPLE_OBJECT;
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struct AUDIO_SAMPLE
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{
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SDWORD iTrack; // ID number identifying a specific sound; currently (r1182) mapped in audio_id.c
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#ifndef WZ_NOSOUND
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ALuint iSample; // OpenAL name of the sound source
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#ifdef DEBUG // only used for debugging
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ALboolean isLooping; // if sample loops
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ALboolean is3d; // if sample is 3d (as opposed to 2d)
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char filename[256]; // actual filename of sample
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#endif
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#endif
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SDWORD x, y, z;
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float fVol; // computed volume of sample
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bool bFinishedPlaying;
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AUDIO_CALLBACK pCallback;
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SIMPLE_OBJECT * psObj;
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AUDIO_SAMPLE * psPrev;
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AUDIO_SAMPLE * psNext;
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};
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struct TRACK
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{
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bool bLoop;
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SDWORD iVol;
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SDWORD iAudibleRadius;
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SDWORD iTime; // duration in milliseconds
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UDWORD iTimeLastFinished; // time last finished in ms
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UDWORD iNumPlaying;
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#ifndef WZ_NOSOUND
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ALuint iBufferName; // OpenAL name of the buffer
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#endif
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const char* fileName;
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};
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/* functions
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*/
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bool sound_Init(void);
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bool sound_Shutdown(void);
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TRACK * sound_LoadTrackFromFile(const char *fileName);
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unsigned int sound_SetTrackVals(const char* fileName, bool loop, unsigned int volume, unsigned int audibleRadius);
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void sound_ReleaseTrack( TRACK * psTrack );
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void sound_StopTrack( AUDIO_SAMPLE *psSample );
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void sound_PauseTrack( AUDIO_SAMPLE *psSample );
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void sound_UpdateSample( AUDIO_SAMPLE *psSample );
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void sound_CheckAllUnloaded( void );
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void sound_RemoveActiveSample( AUDIO_SAMPLE *psSample );
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bool sound_CheckTrack( SDWORD iTrack );
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SDWORD sound_GetTrackTime( SDWORD iTrack );
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SDWORD sound_GetTrackAudibleRadius( SDWORD iTrack );
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SDWORD sound_GetTrackVolume( SDWORD iTrack );
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const char * sound_GetTrackName( SDWORD iTrack );
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bool sound_TrackLooped( SDWORD iTrack );
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void sound_SetCallbackFunction( void * fn );
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bool sound_Play2DTrack( AUDIO_SAMPLE *psSample, bool bQueued );
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bool sound_Play3DTrack( AUDIO_SAMPLE *psSample );
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void sound_PlayWithCallback( AUDIO_SAMPLE *psSample, SDWORD iCurTime, AUDIO_CALLBACK pDoneFunc );
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void sound_FinishedCallback( AUDIO_SAMPLE *psSample );
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bool sound_GetSystemActive( void );
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SDWORD sound_GetTrackID( TRACK *psTrack );
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SDWORD sound_GetAvailableID( void );
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SDWORD sound_GetNumPlaying( SDWORD iTrack );
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SDWORD sound_GetGlobalVolume( void );
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void sound_SetGlobalVolume( SDWORD iVol );
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void sound_SetStoppedCallback( AUDIO_CALLBACK pStopTrackCallback );
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UDWORD sound_GetTrackTimeLastFinished( SDWORD iTrack );
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void sound_SetTrackTimeLastFinished( SDWORD iTrack, UDWORD iTime );
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extern bool sound_isStreamPlaying(AUDIO_STREAM *stream);
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extern void sound_StopStream(AUDIO_STREAM* stream);
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extern void sound_PauseStream(AUDIO_STREAM* stream);
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extern void sound_ResumeStream(AUDIO_STREAM* stream);
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extern AUDIO_STREAM* sound_PlayStreamWithBuf(PHYSFS_file* fileHandle, float volume, void (*onFinished)(void*), void* user_data, size_t streamBufferSize, unsigned int buffer_count);
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extern float sound_GetStreamVolume(const AUDIO_STREAM* stream);
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extern void sound_SetStreamVolume(AUDIO_STREAM* stream, float volume);
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void soundTest(void);
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#endif // __INCLUDED_LIB_SOUND_TRACK_H__
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