/* =========================================================================== Copyright (C) 1999-2005 Id Software, Inc. Copyright (C) 2005 Stuart Dalton (badcdev@gmail.com) This file is part of Quake III Arena source code. Quake III Arena source code 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 2 of the License, or (at your option) any later version. Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =========================================================================== */ #include "snd_local.h" #include "snd_codec.h" #include "client.h" #ifdef USE_OPENAL #include "qal.h" // Console variables specific to OpenAL cvar_t *s_alPrecache; cvar_t *s_alGain; cvar_t *s_alSources; cvar_t *s_alDopplerFactor; cvar_t *s_alDopplerSpeed; cvar_t *s_alMinDistance; cvar_t *s_alMaxDistance; cvar_t *s_alRolloff; cvar_t *s_alGraceDistance; cvar_t *s_alDriver; cvar_t *s_alDevice; cvar_t *s_alAvailableDevices; /* ================= S_AL_Format ================= */ static ALuint S_AL_Format(int width, int channels) { ALuint format = AL_FORMAT_MONO16; // Work out format if(width == 1) { if(channels == 1) format = AL_FORMAT_MONO8; else if(channels == 2) format = AL_FORMAT_STEREO8; } else if(width == 2) { if(channels == 1) format = AL_FORMAT_MONO16; else if(channels == 2) format = AL_FORMAT_STEREO16; } return format; } /* ================= S_AL_ErrorMsg ================= */ static const char *S_AL_ErrorMsg(ALenum error) { switch(error) { case AL_NO_ERROR: return "No error"; case AL_INVALID_NAME: return "Invalid name"; case AL_INVALID_ENUM: return "Invalid enumerator"; case AL_INVALID_VALUE: return "Invalid value"; case AL_INVALID_OPERATION: return "Invalid operation"; case AL_OUT_OF_MEMORY: return "Out of memory"; default: return "Unknown error"; } } //=========================================================================== typedef struct alSfx_s { char filename[MAX_QPATH]; ALuint buffer; // OpenAL buffer qboolean isDefault; // Couldn't be loaded - use default FX qboolean inMemory; // Sound is stored in memory qboolean isLocked; // Sound is locked (can not be unloaded) int lastUsedTime; // Time last used } alSfx_t; static qboolean alBuffersInitialised = qfalse; // Sound effect storage, data structures #define MAX_SFX 4096 static alSfx_t knownSfx[MAX_SFX]; static int numSfx = 0; static sfxHandle_t default_sfx; /* ================= S_AL_BufferFindFree Find a free handle ================= */ static sfxHandle_t S_AL_BufferFindFree( void ) { int i; for(i = 0; i < MAX_SFX; i++) { // Got one if(knownSfx[i].filename[0] == '\0') { if(i >= numSfx) numSfx = i + 1; return i; } } // Shit... Com_Error(ERR_FATAL, "S_AL_BufferFindFree: No free sound handles"); return -1; } /* ================= S_AL_BufferFind Find a sound effect if loaded, set up a handle otherwise ================= */ static sfxHandle_t S_AL_BufferFind(const char *filename) { // Look it up in the table sfxHandle_t sfx = -1; int i; for(i = 0; i < numSfx; i++) { if(!Q_stricmp(knownSfx[i].filename, filename)) { sfx = i; break; } } // Not found in table? if(sfx == -1) { alSfx_t *ptr; sfx = S_AL_BufferFindFree(); // Clear and copy the filename over ptr = &knownSfx[sfx]; memset(ptr, 0, sizeof(*ptr)); strcpy(ptr->filename, filename); } // Return the handle return sfx; } /* ================= S_AL_BufferUseDefault ================= */ static void S_AL_BufferUseDefault(sfxHandle_t sfx) { if(sfx == default_sfx) Com_Error(ERR_FATAL, "Can't load default sound effect %s\n", knownSfx[sfx].filename); Com_Printf( S_COLOR_YELLOW "WARNING: Using default sound for %s\n", knownSfx[sfx].filename); knownSfx[sfx].isDefault = qtrue; knownSfx[sfx].buffer = knownSfx[default_sfx].buffer; } /* ================= S_AL_BufferUnload ================= */ static void S_AL_BufferUnload(sfxHandle_t sfx) { ALenum error; if(knownSfx[sfx].filename[0] == '\0') return; if(!knownSfx[sfx].inMemory) return; // Delete it qalDeleteBuffers(1, &knownSfx[sfx].buffer); if((error = qalGetError()) != AL_NO_ERROR) Com_Printf( S_COLOR_RED "ERROR: Can't delete sound buffer for %s\n", knownSfx[sfx].filename); knownSfx[sfx].inMemory = qfalse; } /* ================= S_AL_BufferEvict ================= */ static qboolean S_AL_BufferEvict( void ) { int i, oldestBuffer = -1; int oldestTime = Sys_Milliseconds( ); for( i = 0; i < numSfx; i++ ) { if( !knownSfx[ i ].filename[ 0 ] ) continue; if( !knownSfx[ i ].inMemory ) continue; if( knownSfx[ i ].lastUsedTime < oldestTime ) { oldestTime = knownSfx[ i ].lastUsedTime; oldestBuffer = i; } } if( oldestBuffer >= 0 ) { S_AL_BufferUnload( oldestBuffer ); return qtrue; } else return qfalse; } /* ================= S_AL_BufferLoad ================= */ static void S_AL_BufferLoad(sfxHandle_t sfx) { ALenum error; void *data; snd_info_t info; ALuint format; // Nothing? if(knownSfx[sfx].filename[0] == '\0') return; // Player SFX if(knownSfx[sfx].filename[0] == '*') return; // Already done? if((knownSfx[sfx].inMemory) || (knownSfx[sfx].isDefault)) return; // Try to load data = S_CodecLoad(knownSfx[sfx].filename, &info); if(!data) { S_AL_BufferUseDefault(sfx); return; } format = S_AL_Format(info.width, info.channels); // Create a buffer qalGenBuffers(1, &knownSfx[sfx].buffer); if((error = qalGetError()) != AL_NO_ERROR) { S_AL_BufferUseDefault(sfx); Z_Free(data); Com_Printf( S_COLOR_RED "ERROR: Can't create a sound buffer for %s - %s\n", knownSfx[sfx].filename, S_AL_ErrorMsg(error)); return; } // Fill the buffer if( info.size == 0 ) { // We have no data to buffer, so buffer silence byte dummyData[ 2 ] = { 0 }; qalBufferData(knownSfx[sfx].buffer, AL_FORMAT_MONO16, (void *)dummyData, 2, 22050); } else qalBufferData(knownSfx[sfx].buffer, format, data, info.size, info.rate); error = qalGetError(); // If we ran out of memory, start evicting the least recently used sounds while(error == AL_OUT_OF_MEMORY) { if( !S_AL_BufferEvict( ) ) { S_AL_BufferUseDefault(sfx); Z_Free(data); Com_Printf( S_COLOR_RED "ERROR: Out of memory loading %s\n", knownSfx[sfx].filename); return; } // Try load it again qalBufferData(knownSfx[sfx].buffer, format, data, info.size, info.rate); error = qalGetError(); } // Some other error condition if(error != AL_NO_ERROR) { S_AL_BufferUseDefault(sfx); Z_Free(data); Com_Printf( S_COLOR_RED "ERROR: Can't fill sound buffer for %s - %s\n", knownSfx[sfx].filename, S_AL_ErrorMsg(error)); return; } // Free the memory Z_Free(data); // Woo! knownSfx[sfx].inMemory = qtrue; } /* ================= S_AL_BufferUse ================= */ static void S_AL_BufferUse(sfxHandle_t sfx) { if(knownSfx[sfx].filename[0] == '\0') return; if((!knownSfx[sfx].inMemory) && (!knownSfx[sfx].isDefault)) S_AL_BufferLoad(sfx); knownSfx[sfx].lastUsedTime = Sys_Milliseconds(); } /* ================= S_AL_BufferInit ================= */ static qboolean S_AL_BufferInit( void ) { if(alBuffersInitialised) return qtrue; // Clear the hash table, and SFX table memset(knownSfx, 0, sizeof(knownSfx)); numSfx = 0; // Load the default sound, and lock it default_sfx = S_AL_BufferFind("sound/feedback/hit.wav"); S_AL_BufferUse(default_sfx); knownSfx[default_sfx].isLocked = qtrue; // All done alBuffersInitialised = qtrue; return qtrue; } /* ================= S_AL_BufferShutdown ================= */ static void S_AL_BufferShutdown( void ) { int i; if(!alBuffersInitialised) return; // Unlock the default sound effect knownSfx[default_sfx].isLocked = qfalse; // Free all used effects for(i = 0; i < numSfx; i++) S_AL_BufferUnload(i); // Clear the tables memset(knownSfx, 0, sizeof(knownSfx)); // All undone alBuffersInitialised = qfalse; } /* ================= S_AL_RegisterSound ================= */ static sfxHandle_t S_AL_RegisterSound( const char *sample, qboolean compressed ) { sfxHandle_t sfx = S_AL_BufferFind(sample); if( s_alPrecache->integer && (!knownSfx[sfx].inMemory) && (!knownSfx[sfx].isDefault)) S_AL_BufferLoad(sfx); knownSfx[sfx].lastUsedTime = Com_Milliseconds(); return sfx; } /* ================= S_AL_BufferGet Return's an sfx's buffer ================= */ static ALuint S_AL_BufferGet(sfxHandle_t sfx) { return knownSfx[sfx].buffer; } //=========================================================================== typedef struct src_s { ALuint alSource; // OpenAL source object sfxHandle_t sfx; // Sound effect in use int lastUsedTime; // Last time used alSrcPriority_t priority; // Priority int entity; // Owning entity (-1 if none) int channel; // Associated channel (-1 if none) int isActive; // Is this source currently in use? int isLocked; // This is locked (un-allocatable) int isLooping; // Is this a looping effect (attached to an entity) int isTracking; // Is this object tracking it's owner float curGain; // gain employed if source is within maxdistance. float scaleGain; // Last gain value for this source. 0 if muted. qboolean local; // Is this local (relative to the cam) } src_t; #ifdef MACOS_X #define MAX_SRC 64 #else #define MAX_SRC 128 #endif static src_t srcList[MAX_SRC]; static int srcCount = 0; static qboolean alSourcesInitialised = qfalse; static vec3_t lastListenerOrigin = { 0.0f, 0.0f, 0.0f }; typedef struct sentity_s { vec3_t origin; int srcAllocated; // If a src_t has been allocated to this entity int srcIndex; qboolean loopAddedThisFrame; alSrcPriority_t loopPriority; sfxHandle_t loopSfx; qboolean startLoopingSound; } sentity_t; static sentity_t entityList[MAX_GENTITIES]; /* ================= S_AL_SanitiseVector ================= */ #define S_AL_SanitiseVector(v) _S_AL_SanitiseVector(v,__LINE__) static void _S_AL_SanitiseVector( vec3_t v, int line ) { if( Q_isnan( v[ 0 ] ) || Q_isnan( v[ 1 ] ) || Q_isnan( v[ 2 ] ) ) { Com_DPrintf( S_COLOR_YELLOW "WARNING: vector with one or more NaN components " "being passed to OpenAL at %s:%d -- zeroing\n", __FILE__, line ); VectorClear( v ); } } #define AL_THIRD_PERSON_THRESHOLD_SQ (48.0f*48.0f) /* ================= S_AL_ScaleGain Adapt the gain if necessary to get a quicker fadeout when the source is too far away. ================= */ static void S_AL_ScaleGain(src_t *chksrc, vec3_t origin) { float distance; if(!chksrc->local) distance = Distance(origin, lastListenerOrigin); // If we exceed a certain distance, scale the gain linearly until the sound // vanishes into nothingness. if(!chksrc->local && (distance -= s_alMaxDistance->value) > 0) { float scaleFactor; if(distance >= s_alGraceDistance->value) scaleFactor = 0.0f; else scaleFactor = 1.0f - distance / s_alGraceDistance->value; scaleFactor *= chksrc->curGain; if(chksrc->scaleGain != scaleFactor); { chksrc->scaleGain = scaleFactor; // if(scaleFactor > 0.0f) // Com_Printf("%f\n", scaleFactor); qalSourcef(chksrc->alSource, AL_GAIN, chksrc->scaleGain); } } else if(chksrc->scaleGain != chksrc->curGain) { chksrc->scaleGain = chksrc->curGain; qalSourcef(chksrc->alSource, AL_GAIN, chksrc->scaleGain); } } /* ================= S_AL_HearingThroughEntity ================= */ static qboolean S_AL_HearingThroughEntity( int entityNum ) { float distanceSq; if( clc.clientNum == entityNum ) { // FIXME: 28/02/06 This is an outrageous hack to detect // whether or not the player is rendering in third person or not. We can't // ask the renderer because the renderer has no notion of entities and we // can't ask cgame since that would involve changing the API and hence mod // compatibility. I don't think there is any way around this, but I'll leave // the FIXME just in case anyone has a bright idea. distanceSq = DistanceSquared( entityList[ entityNum ].origin, lastListenerOrigin ); if( distanceSq > AL_THIRD_PERSON_THRESHOLD_SQ ) return qfalse; //we're the player, but third person else return qtrue; //we're the player } else return qfalse; //not the player } /* ================= S_AL_SrcInit ================= */ static qboolean S_AL_SrcInit( void ) { int i; int limit; ALenum error; // Clear the sources data structure memset(srcList, 0, sizeof(srcList)); srcCount = 0; // Cap s_alSources to MAX_SRC limit = s_alSources->integer; if(limit > MAX_SRC) limit = MAX_SRC; else if(limit < 16) limit = 16; // Allocate as many sources as possible for(i = 0; i < limit; i++) { qalGenSources(1, &srcList[i].alSource); if((error = qalGetError()) != AL_NO_ERROR) break; srcCount++; } // All done. Print this for informational purposes Com_Printf( "Allocated %d sources.\n", srcCount); alSourcesInitialised = qtrue; return qtrue; } /* ================= S_AL_SrcShutdown ================= */ static void S_AL_SrcShutdown( void ) { int i; if(!alSourcesInitialised) return; // Destroy all the sources for(i = 0; i < srcCount; i++) { if(srcList[i].isLocked) Com_DPrintf( S_COLOR_YELLOW "WARNING: Source %d is locked\n", i); qalSourceStop(srcList[i].alSource); qalDeleteSources(1, &srcList[i].alSource); } memset(srcList, 0, sizeof(srcList)); alSourcesInitialised = qfalse; } /* ================= S_AL_SrcSetup ================= */ static void S_AL_SrcSetup(srcHandle_t src, sfxHandle_t sfx, alSrcPriority_t priority, int entity, int channel, qboolean local) { ALuint buffer; src_t *curSource; // Mark the SFX as used, and grab the raw AL buffer S_AL_BufferUse(sfx); buffer = S_AL_BufferGet(sfx); // Set up src struct curSource = &srcList[src]; curSource->lastUsedTime = Sys_Milliseconds(); curSource->sfx = sfx; curSource->priority = priority; curSource->entity = entity; curSource->channel = channel; curSource->isActive = qtrue; curSource->isLocked = qfalse; curSource->isLooping = qfalse; curSource->isTracking = qfalse; curSource->curGain = s_alGain->value * s_volume->value; curSource->scaleGain = curSource->curGain; curSource->local = local; // Set up OpenAL source qalSourcei(curSource->alSource, AL_BUFFER, buffer); qalSourcef(curSource->alSource, AL_PITCH, 1.0f); qalSourcef(curSource->alSource, AL_GAIN, curSource->curGain); qalSourcefv(curSource->alSource, AL_POSITION, vec3_origin); qalSourcefv(curSource->alSource, AL_VELOCITY, vec3_origin); qalSourcei(curSource->alSource, AL_LOOPING, AL_FALSE); qalSourcef(curSource->alSource, AL_REFERENCE_DISTANCE, s_alMinDistance->value); if(local) { qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_TRUE); qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, 0.0f); } else { qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_FALSE); qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, s_alRolloff->value); } } /* ================= S_AL_SrcKill ================= */ static void S_AL_SrcKill(srcHandle_t src) { // I'm not touching it. Unlock it first. if(srcList[src].isLocked) return; // Stop it if it's playing if(srcList[src].isActive) qalSourceStop(srcList[src].alSource); // Remove the entity association if((srcList[src].isLooping) && (srcList[src].entity != -1)) { int ent = srcList[src].entity; entityList[ent].srcAllocated = qfalse; entityList[ent].srcIndex = -1; entityList[ent].loopAddedThisFrame = qfalse; entityList[ent].startLoopingSound = qfalse; } // Remove the buffer qalSourcei(srcList[src].alSource, AL_BUFFER, 0); srcList[src].sfx = 0; srcList[src].lastUsedTime = 0; srcList[src].priority = 0; srcList[src].entity = -1; srcList[src].channel = -1; srcList[src].isActive = qfalse; srcList[src].isLocked = qfalse; srcList[src].isLooping = qfalse; srcList[src].isTracking = qfalse; srcList[src].local = qfalse; } /* ================= S_AL_SrcAlloc ================= */ static srcHandle_t S_AL_SrcAlloc( alSrcPriority_t priority, int entnum, int channel ) { int i; int empty = -1; int weakest = -1; int weakest_time = Sys_Milliseconds(); int weakest_pri = 999; for(i = 0; i < srcCount; i++) { // If it's locked, we aren't even going to look at it if(srcList[i].isLocked) continue; // Is it empty or not? if((!srcList[i].isActive) && (empty == -1)) empty = i; else if(srcList[i].priority < priority) { // If it's older or has lower priority, flag it as weak if((srcList[i].priority < weakest_pri) || (srcList[i].lastUsedTime < weakest_time)) { weakest_pri = srcList[i].priority; weakest_time = srcList[i].lastUsedTime; weakest = i; } } // The channel system is not actually adhered to by baseq3, and not // implemented in snd_dma.c, so while the following is strictly correct, it // causes incorrect behaviour versus defacto baseq3 #if 0 // Is it an exact match, and not on channel 0? if((srcList[i].entity == entnum) && (srcList[i].channel == channel) && (channel != 0)) { S_AL_SrcKill(i); return i; } #endif } // Do we have an empty one? if(empty != -1) { S_AL_SrcKill( empty ); return empty; } // No. How about an overridable one? if(weakest != -1) { S_AL_SrcKill(weakest); return weakest; } // Nothing. Return failure (cries...) return -1; } /* ================= S_AL_SrcFind Finds an active source with matching entity and channel numbers Returns -1 if there isn't one ================= */ #if 0 static srcHandle_t S_AL_SrcFind(int entnum, int channel) { int i; for(i = 0; i < srcCount; i++) { if(!srcList[i].isActive) continue; if((srcList[i].entity == entnum) && (srcList[i].channel == channel)) return i; } return -1; } #endif /* ================= S_AL_SrcLock Locked sources will not be automatically reallocated or managed ================= */ static void S_AL_SrcLock(srcHandle_t src) { srcList[src].isLocked = qtrue; } /* ================= S_AL_SrcUnlock Once unlocked, the source may be reallocated again ================= */ static void S_AL_SrcUnlock(srcHandle_t src) { srcList[src].isLocked = qfalse; } /* ================= S_AL_UpdateEntityPosition ================= */ static void S_AL_UpdateEntityPosition( int entityNum, const vec3_t origin ) { vec3_t sanOrigin; VectorCopy( origin, sanOrigin ); S_AL_SanitiseVector( sanOrigin ); if ( entityNum < 0 || entityNum > MAX_GENTITIES ) Com_Error( ERR_DROP, "S_UpdateEntityPosition: bad entitynum %i", entityNum ); VectorCopy( sanOrigin, entityList[entityNum].origin ); } /* ================= S_AL_CheckInput Check whether input values from mods are out of range. Necessary for i.g. Western Quake3 mod which is buggy. ================= */ static qboolean S_AL_CheckInput(int entityNum, sfxHandle_t sfx) { if (entityNum < 0 || entityNum > MAX_GENTITIES) Com_Error(ERR_DROP, "S_StartSound: bad entitynum %i", entityNum); if (sfx < 0 || sfx >= numSfx) { Com_Printf(S_COLOR_RED "ERROR: S_AL_CheckInput: handle %i out of range\n", sfx); return qtrue; } return qfalse; } /* ================= S_AL_StartLocalSound Play a local (non-spatialized) sound effect ================= */ static void S_AL_StartLocalSound(sfxHandle_t sfx, int channel) { srcHandle_t src; if(S_AL_CheckInput(0, sfx)) return; // Try to grab a source src = S_AL_SrcAlloc(SRCPRI_LOCAL, -1, channel); if(src == -1) return; // Set up the effect S_AL_SrcSetup(src, sfx, SRCPRI_LOCAL, -1, channel, qtrue); // Start it playing qalSourcePlay(srcList[src].alSource); } /* ================= S_AL_StartSound Play a one-shot sound effect ================= */ static void S_AL_StartSound( vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx ) { vec3_t sorigin; srcHandle_t src; if(S_AL_CheckInput(origin ? 0 : entnum, sfx)) return; // Try to grab a source src = S_AL_SrcAlloc(SRCPRI_ONESHOT, entnum, entchannel); if(src == -1) return; // Set up the effect if( origin == NULL ) { if( S_AL_HearingThroughEntity( entnum ) ) { // Where the entity is the local player, play a local sound S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qtrue ); VectorClear( sorigin ); } else { S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qfalse ); VectorCopy( entityList[ entnum ].origin, sorigin ); } srcList[ src ].isTracking = qtrue; } else { S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qfalse ); VectorCopy( origin, sorigin ); } S_AL_SanitiseVector( sorigin ); qalSourcefv( srcList[ src ].alSource, AL_POSITION, sorigin ); S_AL_ScaleGain(&srcList[src], sorigin); // Start it playing qalSourcePlay(srcList[src].alSource); } /* ================= S_AL_ClearLoopingSounds ================= */ static void S_AL_ClearLoopingSounds( qboolean killall ) { int i; for(i = 0; i < srcCount; i++) { if((srcList[i].isLooping) && (srcList[i].entity != -1)) entityList[srcList[i].entity].loopAddedThisFrame = qfalse; } } /* ================= S_AL_SrcLoop ================= */ static void S_AL_SrcLoop( alSrcPriority_t priority, sfxHandle_t sfx, const vec3_t origin, const vec3_t velocity, int entityNum ) { int src; sentity_t *sent = &entityList[ entityNum ]; src_t *curSource; // Do we need to allocate a new source for this entity if( !sent->srcAllocated ) { // Try to get a channel src = S_AL_SrcAlloc( priority, entityNum, -1 ); if( src == -1 ) { Com_DPrintf( S_COLOR_YELLOW "WARNING: Failed to allocate source " "for loop sfx %d on entity %d\n", sfx, entityNum ); return; } sent->startLoopingSound = qtrue; } else src = sent->srcIndex; sent->srcAllocated = qtrue; sent->srcIndex = src; sent->loopPriority = priority; sent->loopSfx = sfx; // If this is not set then the looping sound is removed sent->loopAddedThisFrame = qtrue; curSource = &srcList[src]; // UGH // These lines should be called via S_AL_SrcSetup, but we // can't call that yet as it buffers sfxes that may change // with subsequent calls to S_AL_SrcLoop curSource->entity = entityNum; curSource->isLooping = qtrue; curSource->isActive = qtrue; if( S_AL_HearingThroughEntity( entityNum ) ) { curSource->local = qtrue; qalSourcefv( curSource->alSource, AL_POSITION, vec3_origin ); qalSourcefv( curSource->alSource, AL_VELOCITY, vec3_origin ); } else { curSource->local = qfalse; qalSourcefv( curSource->alSource, AL_POSITION, (ALfloat *)sent->origin ); qalSourcefv( curSource->alSource, AL_VELOCITY, (ALfloat *)velocity ); } S_AL_ScaleGain(curSource, sent->origin); } /* ================= S_AL_AddLoopingSound ================= */ static void S_AL_AddLoopingSound( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx ) { vec3_t sanOrigin, sanVelocity; if(S_AL_CheckInput(entityNum, sfx)) return; VectorCopy( origin, sanOrigin ); VectorCopy( velocity, sanVelocity ); S_AL_SanitiseVector( sanOrigin ); S_AL_SanitiseVector( sanVelocity ); S_AL_SrcLoop(SRCPRI_ENTITY, sfx, sanOrigin, sanVelocity, entityNum); } /* ================= S_AL_AddRealLoopingSound ================= */ static void S_AL_AddRealLoopingSound( int entityNum, const vec3_t origin, const vec3_t velocity, sfxHandle_t sfx ) { vec3_t sanOrigin, sanVelocity; if(S_AL_CheckInput(entityNum, sfx)) return; VectorCopy( origin, sanOrigin ); VectorCopy( velocity, sanVelocity ); S_AL_SanitiseVector( sanOrigin ); S_AL_SanitiseVector( sanVelocity ); // There are certain maps (*cough* Q3:TA mpterra*) that have large quantities // of ET_SPEAKERS in the PVS at any given time. OpenAL can't cope with mixing // large numbers of sounds, so this culls them by distance if( DistanceSquared( sanOrigin, lastListenerOrigin ) > (s_alMaxDistance->value + s_alGraceDistance->value) * (s_alMaxDistance->value + s_alGraceDistance->value) ) return; S_AL_SrcLoop(SRCPRI_AMBIENT, sfx, sanOrigin, sanVelocity, entityNum); } /* ================= S_AL_StopLoopingSound ================= */ static void S_AL_StopLoopingSound(int entityNum ) { if(entityList[entityNum].srcAllocated) S_AL_SrcKill(entityList[entityNum].srcIndex); } /* ================= S_AL_SrcUpdate Update state (move things around, manage sources, and so on) ================= */ static void S_AL_SrcUpdate( void ) { int i; int entityNum; ALint state; src_t *curSource; for(i = 0; i < srcCount; i++) { entityNum = srcList[i].entity; curSource = &srcList[i]; if(curSource->isLocked) continue; if(!curSource->isActive) continue; // Update source parameters if((s_alGain->modified)||(s_volume->modified)) curSource->curGain = s_alGain->value * s_volume->value; if((s_alRolloff->modified)&&(!curSource->local)) qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, s_alRolloff->value); if(s_alMinDistance->modified) qalSourcef(curSource->alSource, AL_REFERENCE_DISTANCE, s_alMinDistance->value); if(curSource->isLooping) { sentity_t *sent = &entityList[ entityNum ]; // If a looping effect hasn't been touched this frame, kill it if(sent->loopAddedThisFrame) { // The sound has changed without an intervening removal if(curSource->isActive && !sent->startLoopingSound && curSource->sfx != sent->loopSfx) { qalSourceStop(curSource->alSource); qalSourcei(curSource->alSource, AL_BUFFER, 0); sent->startLoopingSound = qtrue; } // The sound hasn't been started yet if(sent->startLoopingSound) { S_AL_SrcSetup(i, sent->loopSfx, sent->loopPriority, entityNum, -1, curSource->local); curSource->isLooping = qtrue; qalSourcei(curSource->alSource, AL_LOOPING, AL_TRUE); qalSourcePlay(curSource->alSource); sent->startLoopingSound = qfalse; } // Update locality if(curSource->local) { qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_TRUE); qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, 0.0f); } else { qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_FALSE); qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, s_alRolloff->value); } } else S_AL_SrcKill( i ); continue; } // Check if it's done, and flag it qalGetSourcei(curSource->alSource, AL_SOURCE_STATE, &state); if(state == AL_STOPPED) { S_AL_SrcKill(i); continue; } // Query relativity of source, don't move if it's true qalGetSourcei(curSource->alSource, AL_SOURCE_RELATIVE, &state); // See if it needs to be moved if(curSource->isTracking && !state) { qalSourcefv(curSource->alSource, AL_POSITION, entityList[entityNum].origin); S_AL_ScaleGain(curSource, entityList[entityNum].origin); } } } /* ================= S_AL_SrcShutup ================= */ static void S_AL_SrcShutup( void ) { int i; for(i = 0; i < srcCount; i++) S_AL_SrcKill(i); } /* ================= S_AL_SrcGet ================= */ static ALuint S_AL_SrcGet(srcHandle_t src) { return srcList[src].alSource; } //=========================================================================== static srcHandle_t streamSourceHandles[MAX_RAW_STREAMS]; static qboolean streamPlaying[MAX_RAW_STREAMS]; static ALuint streamSources[MAX_RAW_STREAMS]; /* ================= S_AL_AllocateStreamChannel ================= */ static void S_AL_AllocateStreamChannel( int stream ) { if ((stream < 0) || (stream >= MAX_RAW_STREAMS)) return; // Allocate a streamSource at high priority streamSourceHandles[stream] = S_AL_SrcAlloc(SRCPRI_STREAM, -2, 0); if(streamSourceHandles[stream] == -1) return; // Lock the streamSource so nobody else can use it, and get the raw streamSource S_AL_SrcLock(streamSourceHandles[stream]); streamSources[stream] = S_AL_SrcGet(streamSourceHandles[stream]); // Set some streamSource parameters qalSourcei (streamSources[stream], AL_BUFFER, 0 ); qalSourcei (streamSources[stream], AL_LOOPING, AL_FALSE ); qalSource3f(streamSources[stream], AL_POSITION, 0.0, 0.0, 0.0); qalSource3f(streamSources[stream], AL_VELOCITY, 0.0, 0.0, 0.0); qalSource3f(streamSources[stream], AL_DIRECTION, 0.0, 0.0, 0.0); qalSourcef (streamSources[stream], AL_ROLLOFF_FACTOR, 0.0 ); qalSourcei (streamSources[stream], AL_SOURCE_RELATIVE, AL_TRUE ); } /* ================= S_AL_FreeStreamChannel ================= */ static void S_AL_FreeStreamChannel( int stream ) { if ((stream < 0) || (stream >= MAX_RAW_STREAMS)) return; // Release the output streamSource S_AL_SrcUnlock(streamSourceHandles[stream]); streamSources[stream] = 0; streamSourceHandles[stream] = -1; } /* ================= S_AL_RawSamples ================= */ static void S_AL_RawSamples(int stream, int samples, int rate, int width, int channels, const byte *data, float volume) { ALuint buffer; ALuint format; if ((stream < 0) || (stream >= MAX_RAW_STREAMS)) return; format = S_AL_Format( width, channels ); // Create the streamSource if necessary if(streamSourceHandles[stream] == -1) { S_AL_AllocateStreamChannel(stream); // Failed? if(streamSourceHandles[stream] == -1) { Com_Printf( S_COLOR_RED "ERROR: Can't allocate streaming streamSource\n"); return; } } // Create a buffer, and stuff the data into it qalGenBuffers(1, &buffer); qalBufferData(buffer, format, (ALvoid *)data, (samples * width * channels), rate); // Shove the data onto the streamSource qalSourceQueueBuffers(streamSources[stream], 1, &buffer); // Volume qalSourcef (streamSources[stream], AL_GAIN, volume * s_volume->value * s_alGain->value); } /* ================= S_AL_StreamUpdate ================= */ static void S_AL_StreamUpdate( int stream ) { int numBuffers; ALint state; if ((stream < 0) || (stream >= MAX_RAW_STREAMS)) return; if(streamSourceHandles[stream] == -1) return; // Un-queue any buffers, and delete them qalGetSourcei( streamSources[stream], AL_BUFFERS_PROCESSED, &numBuffers ); while( numBuffers-- ) { ALuint buffer; qalSourceUnqueueBuffers(streamSources[stream], 1, &buffer); qalDeleteBuffers(1, &buffer); } // Start the streamSource playing if necessary qalGetSourcei( streamSources[stream], AL_BUFFERS_QUEUED, &numBuffers ); qalGetSourcei(streamSources[stream], AL_SOURCE_STATE, &state); if(state == AL_STOPPED) { streamPlaying[stream] = qfalse; // If there are no buffers queued up, release the streamSource if( !numBuffers ) S_AL_FreeStreamChannel( stream ); } if( !streamPlaying[stream] && numBuffers ) { qalSourcePlay( streamSources[stream] ); streamPlaying[stream] = qtrue; } } /* ================= S_AL_StreamDie ================= */ static void S_AL_StreamDie( int stream ) { int numBuffers; if ((stream < 0) || (stream >= MAX_RAW_STREAMS)) return; if(streamSourceHandles[stream] == -1) return; streamPlaying[stream] = qfalse; qalSourceStop(streamSources[stream]); // Un-queue any buffers, and delete them qalGetSourcei( streamSources[stream], AL_BUFFERS_PROCESSED, &numBuffers ); while( numBuffers-- ) { ALuint buffer; qalSourceUnqueueBuffers(streamSources[stream], 1, &buffer); qalDeleteBuffers(1, &buffer); } S_AL_FreeStreamChannel(stream); } //=========================================================================== #define NUM_MUSIC_BUFFERS 4 #define MUSIC_BUFFER_SIZE 4096 static qboolean musicPlaying = qfalse; static srcHandle_t musicSourceHandle = -1; static ALuint musicSource; static ALuint musicBuffers[NUM_MUSIC_BUFFERS]; static snd_stream_t *mus_stream; static snd_stream_t *intro_stream; static char s_backgroundLoop[MAX_QPATH]; static byte decode_buffer[MUSIC_BUFFER_SIZE]; /* ================= S_AL_MusicSourceGet ================= */ static void S_AL_MusicSourceGet( void ) { // Allocate a musicSource at high priority musicSourceHandle = S_AL_SrcAlloc(SRCPRI_STREAM, -2, 0); if(musicSourceHandle == -1) return; // Lock the musicSource so nobody else can use it, and get the raw musicSource S_AL_SrcLock(musicSourceHandle); musicSource = S_AL_SrcGet(musicSourceHandle); // Set some musicSource parameters qalSource3f(musicSource, AL_POSITION, 0.0, 0.0, 0.0); qalSource3f(musicSource, AL_VELOCITY, 0.0, 0.0, 0.0); qalSource3f(musicSource, AL_DIRECTION, 0.0, 0.0, 0.0); qalSourcef (musicSource, AL_ROLLOFF_FACTOR, 0.0 ); qalSourcei (musicSource, AL_SOURCE_RELATIVE, AL_TRUE ); } /* ================= S_AL_MusicSourceFree ================= */ static void S_AL_MusicSourceFree( void ) { // Release the output musicSource S_AL_SrcUnlock(musicSourceHandle); musicSource = 0; musicSourceHandle = -1; } /* ================= S_AL_CloseMusicFiles ================= */ static void S_AL_CloseMusicFiles(void) { if(intro_stream) { S_CodecCloseStream(intro_stream); intro_stream = NULL; } if(mus_stream) { S_CodecCloseStream(mus_stream); mus_stream = NULL; } } /* ================= S_AL_StopBackgroundTrack ================= */ static void S_AL_StopBackgroundTrack( void ) { if(!musicPlaying) return; // Stop playing qalSourceStop(musicSource); // De-queue the musicBuffers qalSourceUnqueueBuffers(musicSource, NUM_MUSIC_BUFFERS, musicBuffers); // Destroy the musicBuffers qalDeleteBuffers(NUM_MUSIC_BUFFERS, musicBuffers); // Free the musicSource S_AL_MusicSourceFree(); // Unload the stream S_AL_CloseMusicFiles(); musicPlaying = qfalse; } /* ================= S_AL_MusicProcess ================= */ static void S_AL_MusicProcess(ALuint b) { ALenum error; int l; ALuint format; snd_stream_t *curstream; if(intro_stream) curstream = intro_stream; else curstream = mus_stream; if(!curstream) return; l = S_CodecReadStream(curstream, MUSIC_BUFFER_SIZE, decode_buffer); // Run out data to read, start at the beginning again if(l == 0) { S_CodecCloseStream(curstream); // the intro stream just finished playing so we don't need to reopen // the music stream. if(intro_stream) intro_stream = NULL; else mus_stream = S_CodecOpenStream(s_backgroundLoop); curstream = mus_stream; if(!curstream) { S_AL_StopBackgroundTrack(); return; } l = S_CodecReadStream(curstream, MUSIC_BUFFER_SIZE, decode_buffer); } format = S_AL_Format(curstream->info.width, curstream->info.channels); if( l == 0 ) { // We have no data to buffer, so buffer silence byte dummyData[ 2 ] = { 0 }; qalBufferData( b, AL_FORMAT_MONO16, (void *)dummyData, 2, 22050 ); } else qalBufferData(b, format, decode_buffer, l, curstream->info.rate); if( ( error = qalGetError( ) ) != AL_NO_ERROR ) { S_AL_StopBackgroundTrack( ); Com_Printf( S_COLOR_RED "ERROR: while buffering data for music stream - %s\n", S_AL_ErrorMsg( error ) ); return; } } /* ================= S_AL_StartBackgroundTrack ================= */ static void S_AL_StartBackgroundTrack( const char *intro, const char *loop ) { int i; qboolean issame; // Stop any existing music that might be playing S_AL_StopBackgroundTrack(); if((!intro || !*intro) && (!loop || !*loop)) return; // Allocate a musicSource S_AL_MusicSourceGet(); if(musicSourceHandle == -1) return; if (!loop || !*loop) { loop = intro; issame = qtrue; } else if(intro && *intro && !strcmp(intro, loop)) issame = qtrue; else issame = qfalse; // Copy the loop over strncpy( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) ); if(!issame) { // Open the intro and don't mind whether it succeeds. // The important part is the loop. intro_stream = S_CodecOpenStream(intro); } else intro_stream = NULL; mus_stream = S_CodecOpenStream(s_backgroundLoop); if(!mus_stream) { S_AL_CloseMusicFiles(); S_AL_MusicSourceFree(); return; } // Generate the musicBuffers qalGenBuffers(NUM_MUSIC_BUFFERS, musicBuffers); // Queue the musicBuffers up for(i = 0; i < NUM_MUSIC_BUFFERS; i++) { S_AL_MusicProcess(musicBuffers[i]); } qalSourceQueueBuffers(musicSource, NUM_MUSIC_BUFFERS, musicBuffers); // Set the initial gain property qalSourcef(musicSource, AL_GAIN, s_alGain->value * s_musicVolume->value); // Start playing qalSourcePlay(musicSource); musicPlaying = qtrue; } /* ================= S_AL_MusicUpdate ================= */ static void S_AL_MusicUpdate( void ) { int numBuffers; ALint state; if(!musicPlaying) return; qalGetSourcei( musicSource, AL_BUFFERS_PROCESSED, &numBuffers ); while( numBuffers-- ) { ALuint b; qalSourceUnqueueBuffers(musicSource, 1, &b); S_AL_MusicProcess(b); qalSourceQueueBuffers(musicSource, 1, &b); } // Hitches can cause OpenAL to be starved of buffers when streaming. // If this happens, it will stop playback. This restarts the source if // it is no longer playing, and if there are buffers available qalGetSourcei( musicSource, AL_SOURCE_STATE, &state ); qalGetSourcei( musicSource, AL_BUFFERS_QUEUED, &numBuffers ); if( state == AL_STOPPED && numBuffers ) { Com_DPrintf( S_COLOR_YELLOW "Restarted OpenAL music\n" ); qalSourcePlay(musicSource); } // Set the gain property qalSourcef(musicSource, AL_GAIN, s_alGain->value * s_musicVolume->value); } //=========================================================================== // Local state variables static ALCdevice *alDevice; static ALCcontext *alContext; #ifdef USE_VOIP static ALCdevice *alCaptureDevice; static cvar_t *s_alCapture; #endif #ifdef _WIN32 #define ALDRIVER_DEFAULT "OpenAL32.dll" #define ALDEVICE_DEFAULT "Generic Software" #elif defined(MACOS_X) #define ALDRIVER_DEFAULT "/System/Library/Frameworks/OpenAL.framework/OpenAL" #else #define ALDRIVER_DEFAULT "libopenal.so.0" #endif /* ================= S_AL_StopAllSounds ================= */ static void S_AL_StopAllSounds( void ) { int i; S_AL_SrcShutup(); S_AL_StopBackgroundTrack(); for (i = 0; i < MAX_RAW_STREAMS; i++) S_AL_StreamDie(i); } /* ================= S_AL_Respatialize ================= */ static void S_AL_Respatialize( int entityNum, const vec3_t origin, vec3_t axis[3], int inwater ) { float velocity[3] = {0.0f, 0.0f, 0.0f}; float orientation[6]; vec3_t sorigin; VectorCopy( origin, sorigin ); S_AL_SanitiseVector( sorigin ); S_AL_SanitiseVector( axis[ 0 ] ); S_AL_SanitiseVector( axis[ 1 ] ); S_AL_SanitiseVector( axis[ 2 ] ); orientation[0] = axis[0][0]; orientation[1] = axis[0][1]; orientation[2] = axis[0][2]; orientation[3] = axis[2][0]; orientation[4] = axis[2][1]; orientation[5] = axis[2][2]; VectorCopy( sorigin, lastListenerOrigin ); // Set OpenAL listener paramaters qalListenerfv(AL_POSITION, (ALfloat *)sorigin); qalListenerfv(AL_VELOCITY, velocity); qalListenerfv(AL_ORIENTATION, orientation); } /* ================= S_AL_Update ================= */ static void S_AL_Update( void ) { int i; // Update SFX channels S_AL_SrcUpdate(); // Update streams for (i = 0; i < MAX_RAW_STREAMS; i++) S_AL_StreamUpdate(i); S_AL_MusicUpdate(); // Doppler if(s_doppler->modified) { s_alDopplerFactor->modified = qtrue; s_doppler->modified = qfalse; } // Doppler parameters if(s_alDopplerFactor->modified) { if(s_doppler->integer) qalDopplerFactor(s_alDopplerFactor->value); else qalDopplerFactor(0.0f); s_alDopplerFactor->modified = qfalse; } if(s_alDopplerSpeed->modified) { qalDopplerVelocity(s_alDopplerSpeed->value); s_alDopplerSpeed->modified = qfalse; } // Clear the modified flags on the other cvars s_alGain->modified = qfalse; s_volume->modified = qfalse; s_musicVolume->modified = qfalse; s_alMinDistance->modified = qfalse; s_alRolloff->modified = qfalse; } /* ================= S_AL_DisableSounds ================= */ static void S_AL_DisableSounds( void ) { S_AL_StopAllSounds(); } /* ================= S_AL_BeginRegistration ================= */ static void S_AL_BeginRegistration( void ) { } /* ================= S_AL_ClearSoundBuffer ================= */ static void S_AL_ClearSoundBuffer( void ) { } /* ================= S_AL_SoundList ================= */ static void S_AL_SoundList( void ) { } #ifdef USE_VOIP static void S_AL_StartCapture( void ) { if (alCaptureDevice != NULL) qalcCaptureStart(alCaptureDevice); } static int S_AL_AvailableCaptureSamples( void ) { int retval = 0; if (alCaptureDevice != NULL) { ALint samples = 0; qalcGetIntegerv(alCaptureDevice, ALC_CAPTURE_SAMPLES, sizeof (samples), &samples); retval = (int) samples; } return retval; } static void S_AL_Capture( int samples, byte *data ) { if (alCaptureDevice != NULL) qalcCaptureSamples(alCaptureDevice, data, samples); } void S_AL_StopCapture( void ) { if (alCaptureDevice != NULL) qalcCaptureStop(alCaptureDevice); } void S_AL_MasterGain( float gain ) { qalListenerf(AL_GAIN, gain); } #endif /* ================= S_AL_SoundInfo ================= */ static void S_AL_SoundInfo( void ) { Com_Printf( "OpenAL info:\n" ); Com_Printf( " Vendor: %s\n", qalGetString( AL_VENDOR ) ); Com_Printf( " Version: %s\n", qalGetString( AL_VERSION ) ); Com_Printf( " Renderer: %s\n", qalGetString( AL_RENDERER ) ); Com_Printf( " AL Extensions: %s\n", qalGetString( AL_EXTENSIONS ) ); Com_Printf( " ALC Extensions: %s\n", qalcGetString( alDevice, ALC_EXTENSIONS ) ); if(qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT")) { Com_Printf(" Device: %s\n", qalcGetString(alDevice, ALC_DEVICE_SPECIFIER)); Com_Printf("Available Devices:\n%s", s_alAvailableDevices->string); } } /* ================= S_AL_Shutdown ================= */ static void S_AL_Shutdown( void ) { // Shut down everything int i; for (i = 0; i < MAX_RAW_STREAMS; i++) S_AL_StreamDie(i); S_AL_StopBackgroundTrack( ); S_AL_SrcShutdown( ); S_AL_BufferShutdown( ); qalcDestroyContext(alContext); qalcCloseDevice(alDevice); #ifdef USE_VOIP if (alCaptureDevice != NULL) { qalcCaptureStop(alCaptureDevice); qalcCaptureCloseDevice(alCaptureDevice); alCaptureDevice = NULL; Com_Printf( "OpenAL capture device closed.\n" ); } #endif for (i = 0; i < MAX_RAW_STREAMS; i++) { streamSourceHandles[i] = -1; streamPlaying[i] = qfalse; streamSources[i] = 0; } QAL_Shutdown(); } #endif /* ================= S_AL_Init ================= */ qboolean S_AL_Init( soundInterface_t *si ) { #ifdef USE_OPENAL qboolean enumsupport, founddev = qfalse; int i; if( !si ) { return qfalse; } for (i = 0; i < MAX_RAW_STREAMS; i++) { streamSourceHandles[i] = -1; streamPlaying[i] = qfalse; streamSources[i] = 0; } // New console variables s_alPrecache = Cvar_Get( "s_alPrecache", "1", CVAR_ARCHIVE ); s_alGain = Cvar_Get( "s_alGain", "1.0", CVAR_ARCHIVE ); s_alSources = Cvar_Get( "s_alSources", "96", CVAR_ARCHIVE ); s_alDopplerFactor = Cvar_Get( "s_alDopplerFactor", "1.0", CVAR_ARCHIVE ); s_alDopplerSpeed = Cvar_Get( "s_alDopplerSpeed", "2200", CVAR_ARCHIVE ); s_alMinDistance = Cvar_Get( "s_alMinDistance", "120", CVAR_CHEAT ); s_alMaxDistance = Cvar_Get("s_alMaxDistance", "1024", CVAR_CHEAT); s_alRolloff = Cvar_Get( "s_alRolloff", "2", CVAR_CHEAT); s_alGraceDistance = Cvar_Get("s_alGraceDistance", "512", CVAR_CHEAT); s_alDriver = Cvar_Get( "s_alDriver", ALDRIVER_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH ); // Load QAL if( !QAL_Init( s_alDriver->string ) ) { Com_Printf( "Failed to load library: \"%s\".\n", s_alDriver->string ); return qfalse; } // Device enumeration support (extension is implemented reasonably only on Windows right now). if((enumsupport = qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT"))) { char devicenames[1024] = ""; const char *devicelist; const char *defaultdevice; int curlen; // get all available devices + the default device name. devicelist = qalcGetString(NULL, ALC_DEVICE_SPECIFIER); defaultdevice = qalcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER); #ifdef _WIN32 // check whether the default device is generic hardware. If it is, change to // Generic Software as that one works more reliably with various sound systems. // If it's not, use OpenAL's default selection as we don't want to ignore // native hardware acceleration. if(!strcmp(defaultdevice, "Generic Hardware")) s_alDevice = Cvar_Get("s_alDevice", ALDEVICE_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH); else #endif s_alDevice = Cvar_Get("s_alDevice", defaultdevice, CVAR_ARCHIVE | CVAR_LATCH); // dump a list of available devices to a cvar for the user to see. while((curlen = strlen(devicelist))) { Q_strcat(devicenames, sizeof(devicenames), devicelist); Q_strcat(devicenames, sizeof(devicenames), "\n"); // check whether the device we want to load is available at all. if(!strcmp(s_alDevice->string, devicelist)) founddev = qtrue; devicelist += curlen + 1; } s_alAvailableDevices = Cvar_Get("s_alAvailableDevices", devicenames, CVAR_ROM | CVAR_NORESTART); if(!founddev) { Cvar_ForceReset("s_alDevice"); founddev = 1; } } if(founddev) alDevice = qalcOpenDevice(s_alDevice->string); else alDevice = qalcOpenDevice(NULL); if( !alDevice ) { QAL_Shutdown( ); Com_Printf( "Failed to open OpenAL device.\n" ); return qfalse; } if(enumsupport) Cvar_Set("s_alDevice", qalcGetString(alDevice, ALC_DEVICE_SPECIFIER)); // Create OpenAL context alContext = qalcCreateContext( alDevice, NULL ); if( !alContext ) { QAL_Shutdown( ); qalcCloseDevice( alDevice ); Com_Printf( "Failed to create OpenAL context.\n" ); return qfalse; } qalcMakeContextCurrent( alContext ); // Initialize sources, buffers, music S_AL_BufferInit( ); S_AL_SrcInit( ); // Set up OpenAL parameters (doppler, etc) qalDistanceModel(AL_INVERSE_DISTANCE_CLAMPED); qalDopplerFactor( s_alDopplerFactor->value ); qalDopplerVelocity( s_alDopplerSpeed->value ); #ifdef USE_VOIP // !!! FIXME: some of these alcCaptureOpenDevice() values should be cvars. // !!! FIXME: add support for capture device enumeration. // !!! FIXME: add some better error reporting. s_alCapture = Cvar_Get( "s_alCapture", "1", CVAR_ARCHIVE | CVAR_LATCH ); if (!s_alCapture->integer) { Com_Printf("OpenAL capture support disabled by user ('+set s_alCapture 1' to enable)\n"); } #if USE_MUMBLE else if (cl_useMumble->integer) { Com_Printf("OpenAL capture support disabled for Mumble support\n"); } #endif else { #ifdef MACOS_X // !!! FIXME: Apple has a 1.1-compliant OpenAL, which includes // !!! FIXME: capture support, but they don't list it in the // !!! FIXME: extension string. We need to check the version string, // !!! FIXME: then the extension string, but that's too much trouble, // !!! FIXME: so we'll just check the function pointer for now. if (qalcCaptureOpenDevice == NULL) #else if (!qalcIsExtensionPresent(NULL, "ALC_EXT_capture")) #endif { Com_Printf("No ALC_EXT_capture support, can't record audio.\n"); } else { // !!! FIXME: 8000Hz is what Speex narrowband mode needs, but we // !!! FIXME: should probably open the capture device after // !!! FIXME: initializing Speex so we can change to wideband // !!! FIXME: if we like. Com_Printf("OpenAL default capture device is '%s'\n", qalcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER)); alCaptureDevice = qalcCaptureOpenDevice(NULL, 8000, AL_FORMAT_MONO16, 4096); Com_Printf( "OpenAL capture device %s.\n", (alCaptureDevice == NULL) ? "failed to open" : "opened"); } } #endif si->Shutdown = S_AL_Shutdown; si->StartSound = S_AL_StartSound; si->StartLocalSound = S_AL_StartLocalSound; si->StartBackgroundTrack = S_AL_StartBackgroundTrack; si->StopBackgroundTrack = S_AL_StopBackgroundTrack; si->RawSamples = S_AL_RawSamples; si->StopAllSounds = S_AL_StopAllSounds; si->ClearLoopingSounds = S_AL_ClearLoopingSounds; si->AddLoopingSound = S_AL_AddLoopingSound; si->AddRealLoopingSound = S_AL_AddRealLoopingSound; si->StopLoopingSound = S_AL_StopLoopingSound; si->Respatialize = S_AL_Respatialize; si->UpdateEntityPosition = S_AL_UpdateEntityPosition; si->Update = S_AL_Update; si->DisableSounds = S_AL_DisableSounds; si->BeginRegistration = S_AL_BeginRegistration; si->RegisterSound = S_AL_RegisterSound; si->ClearSoundBuffer = S_AL_ClearSoundBuffer; si->SoundInfo = S_AL_SoundInfo; si->SoundList = S_AL_SoundList; #ifdef USE_VOIP si->StartCapture = S_AL_StartCapture; si->AvailableCaptureSamples = S_AL_AvailableCaptureSamples; si->Capture = S_AL_Capture; si->StopCapture = S_AL_StopCapture; si->MasterGain = S_AL_MasterGain; #endif return qtrue; #else return qfalse; #endif }