457 lines
13 KiB
C
457 lines
13 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) 2005-2007 Warzone Resurrection 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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#include "lib/framework/frame.h"
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#include "lib/framework/frameresource.h"
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#include "tracklib.h"
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#include "audio_id.h"
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//*
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//
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// defines
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#define MAX_TRACKS ( 600 )
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//*
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//
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// static global variables
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// array of pointers to sound effects
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static TRACK **g_apTrack;
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// number of tracks loaded
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static SDWORD g_iCurTracks = 0;
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// flag set when system is active (for callbacks etc)
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static BOOL g_bSystemActive = FALSE;
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static AUDIO_CALLBACK g_pStopTrackCallback = NULL;
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_Init()
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{
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g_iCurTracks = 0;
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if (!sound_InitLibrary())
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{
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debug(LOG_ERROR, "Cannot init sound library");
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return FALSE;
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}
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// init audio array (with NULL pointers; which calloc ensures by setting all allocated memory to zero)
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g_apTrack = calloc(MAX_TRACKS, sizeof(TRACK*));
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if (!g_apTrack)
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{
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debug(LOG_ERROR, "sound_Init: Out of memory");
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abort();
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return FALSE;
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}
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// set system active flag for callbacks
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g_bSystemActive = TRUE;
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return TRUE;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_Shutdown( void )
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{
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free( g_apTrack );
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// set inactive flag to prevent callbacks coming after shutdown
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g_bSystemActive = FALSE;
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sound_ShutdownLibrary();
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return TRUE;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_GetSystemActive( void )
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{
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return g_bSystemActive;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_SetTrackVals
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(
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TRACK *psTrack,
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BOOL bLoop,
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SDWORD iTrack,
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SDWORD iVol,
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SDWORD iAudibleRadius
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)
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{
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if ( !(iTrack < MAX_TRACKS) )
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{
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return FALSE;
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}
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if ( g_apTrack[iTrack] != NULL )
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{
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debug( LOG_ERROR, "sound_SetTrackVals: track %i already set\n", iTrack );
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abort();
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return FALSE;
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}
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// set track members
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psTrack->bLoop = bLoop;
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psTrack->iVol = iVol;
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psTrack->iAudibleRadius = iAudibleRadius;
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psTrack->iTime =0; //added, since they really should init all the values. -Q
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psTrack->iTimeLastFinished = 0;
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psTrack->iNumPlaying = 0;
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// set global
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g_apTrack[iTrack] = psTrack;
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// increment current sound
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g_iCurTracks++;
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return TRUE;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_ReleaseTrack( TRACK *psTrack )
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{
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TRACK** currTrack;
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// This is here to save CPU wasted by the loop below;
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// Calling this function with psTrack = NULL is perfectly legal,
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// with or without this check
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if (!psTrack)
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return;
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// Run through the list of tracks and set the pointer to the track which is to be released to NULL
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for (currTrack = &g_apTrack[0]; currTrack != &g_apTrack[MAX_TRACKS]; ++currTrack)
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{
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if (*currTrack == psTrack)
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{
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*currTrack = NULL;
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}
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}
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sound_FreeTrack( psTrack );
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free( psTrack );
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_CheckAllUnloaded( void )
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{
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TRACK** currTrack;
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for (currTrack = &g_apTrack[0]; currTrack != &g_apTrack[MAX_TRACKS]; ++currTrack)
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{
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ASSERT(*currTrack == NULL, "sound_CheckAllUnloaded: a track is not unloaded yet (%s); check audio.cfg for duplicate IDs", (*currTrack)->pName);
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}
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_TrackLooped( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->bLoop;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_TrackAudibleRadius( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iAudibleRadius;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetNumPlaying( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iNumPlaying;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_CheckTrack( SDWORD iTrack )
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{
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if ( iTrack < 0 || iTrack > g_iCurTracks - 1 )
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{
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debug( LOG_SOUND, "sound_CheckTrack: track number %i outside max %i\n", iTrack, g_iCurTracks );
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return FALSE;
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}
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if ( g_apTrack[iTrack] == NULL )
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{
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debug( LOG_SOUND, "sound_CheckTrack: track %i NULL\n", iTrack );
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return FALSE;
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}
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return TRUE;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetTrackTime( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iTime;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetTrackVolume( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iVol;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetTrackAudibleRadius( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iAudibleRadius;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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const char *sound_GetTrackName( SDWORD iTrack )
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{
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if ( iTrack == SAMPLE_NOT_FOUND )
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{
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return NULL;
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}
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ASSERT( g_apTrack[iTrack] != NULL, "sound_GetTrackName: unallocated track" );
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return g_apTrack[iTrack] ? g_apTrack[iTrack]->pName : "unallocated";
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_Play2DTrack( AUDIO_SAMPLE *psSample, BOOL bQueued )
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{
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TRACK *psTrack;
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if (!sound_CheckTrack(psSample->iTrack))
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{
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return FALSE;
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}
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psTrack = g_apTrack[psSample->iTrack];
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if (psTrack == NULL)
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{
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return FALSE;
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}
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return sound_Play2DSample( psTrack, psSample, bQueued );
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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BOOL sound_Play3DTrack( AUDIO_SAMPLE *psSample )
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{
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TRACK *psTrack;
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if (!sound_CheckTrack(psSample->iTrack))
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{
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return FALSE;
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}
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psTrack = g_apTrack[psSample->iTrack];
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return sound_Play3DSample( psTrack, psSample );
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_StopTrack( AUDIO_SAMPLE *psSample )
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{
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ASSERT( psSample != NULL, "sound_StopTrack: sample pointer invalid\n" );
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#ifndef WZ_NOSOUND
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if ( psSample->iSample != (ALuint)SAMPLE_NOT_ALLOCATED )
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{
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sound_StopSample( psSample->iSample );
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}
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else
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{
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debug( LOG_SOUND, "sound_StopTrack: sample %u out of range, we probably have run out of available OpenAL sources\n", psSample->iSample );
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}
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#endif
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// do stopped callback
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if ( g_pStopTrackCallback != NULL && psSample->psObj != NULL )
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{
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g_pStopTrackCallback( psSample->psObj );
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}
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_PauseTrack( AUDIO_SAMPLE *psSample )
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{
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#ifndef WZ_NOSOUND
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if ( psSample->iSample != (ALuint)SAMPLE_NOT_ALLOCATED )
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{
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sound_StopSample( psSample->iSample );
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}
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#endif
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_FinishedCallback( AUDIO_SAMPLE *psSample )
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{
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ASSERT( psSample != NULL, "sound_FinishedCallback: sample pointer invalid\n" );
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if ( g_apTrack[psSample->iTrack] != NULL )
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{
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g_apTrack[psSample->iTrack]->iTimeLastFinished = sound_GetGameTime();
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}
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// call user callback if specified
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if ( psSample->pCallback != NULL )
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{
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psSample->pCallback(psSample->psObj);
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}
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// set finished flag
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psSample->bFinishedPlaying = TRUE;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetTrackID( TRACK *psTrack )
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{
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//~~~~~~~~~~
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SDWORD i = 0;
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//~~~~~~~~~~
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// find matching track
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for ( i = 0; i < MAX_TRACKS; i++ )
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{
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if ( (g_apTrack[i] != NULL) && (g_apTrack[i] == psTrack) )
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{
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break;
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}
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}
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// if matching track found return it else find empty track
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if ( i >= MAX_TRACKS )
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{
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return SAMPLE_NOT_FOUND;
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}
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return i;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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SDWORD sound_GetAvailableID()
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{
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SDWORD i;
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// Iterate through the list of tracks until we find an unused ID slot
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for (i = ID_SOUND_NEXT; i < MAX_TRACKS; ++i)
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{
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if (g_apTrack[i] == NULL)
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break;
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}
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ASSERT(i < MAX_TRACKS, "sound_GetTrackID: unused track not found!");
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if (i >= MAX_TRACKS)
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{
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return SAMPLE_NOT_ALLOCATED;
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}
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return i;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_SetStoppedCallback( AUDIO_CALLBACK pStopTrackCallback )
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{
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g_pStopTrackCallback = pStopTrackCallback;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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UDWORD sound_GetTrackTimeLastFinished( SDWORD iTrack )
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{
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sound_CheckTrack( iTrack );
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return g_apTrack[iTrack]->iTimeLastFinished;
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}
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//*
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// =======================================================================================================================
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// =======================================================================================================================
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//
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void sound_SetTrackTimeLastFinished( SDWORD iTrack, UDWORD iTime )
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{
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sound_CheckTrack( iTrack );
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g_apTrack[iTrack]->iTimeLastFinished = iTime;
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}
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