Merged master into DRTVWR-497

1 files changed, 0 insertions, 767 deletions

diff --git a/indra/llaudio/llaudioengine_fmodex.cpp b/indra/llaudio/llaudioengine_fmodex.cpp
deleted file mode 100644
index 7e65a05e48..0000000000
--- a/indra/llaudio/llaudioengine_fmodex.cpp
+++ /dev/null
@@ -1,767 +0,0 @@
-/** 
- * @file audioengine_fmodex.cpp
- * @brief Implementation of LLAudioEngine class abstracting the audio 
- * support as a FMODEX implementation
- *
- * $LicenseInfo:firstyear=2002&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2014, Linden Research, Inc.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- * 
- * This library 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
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- * 
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-#include "llstreamingaudio.h"
-#include "llstreamingaudio_fmodex.h"
-
-#include "llaudioengine_fmodex.h"
-#include "lllistener_fmodex.h"
-
-#include "llerror.h"
-#include "llmath.h"
-#include "llrand.h"
-
-#include "fmod.hpp"
-#include "fmod_errors.h"
-#include "lldir.h"
-#include "llapr.h"
-
-#include "sound_ids.h"
-
-FMOD_RESULT F_CALLBACK windCallback(FMOD_DSP_STATE *dsp_state, float *inbuffer, float *outbuffer, unsigned int length, int inchannels, int outchannels);
-
-FMOD::ChannelGroup *LLAudioEngine_FMODEX::mChannelGroups[LLAudioEngine::AUDIO_TYPE_COUNT] = {0};
-
-LLAudioEngine_FMODEX::LLAudioEngine_FMODEX(bool enable_profiler)
-{
-	mInited = false;
-	mWindGen = NULL;
-	mWindDSP = NULL;
-	mSystem = NULL;
-	mEnableProfiler = enable_profiler;
-	mWindDSPDesc = new FMOD_DSP_DESCRIPTION();
-}
-
-
-LLAudioEngine_FMODEX::~LLAudioEngine_FMODEX()
-{
-	delete mWindDSPDesc;
-}
-
-
-inline bool Check_FMOD_Error(FMOD_RESULT result, const char *string)
-{
-	if(result == FMOD_OK)
-		return false;
-	LL_DEBUGS() << string << " Error: " << FMOD_ErrorString(result) << LL_ENDL;
-	return true;
-}
-
-void* F_STDCALL decode_alloc(unsigned int size, FMOD_MEMORY_TYPE type, const char *sourcestr)
-{
-	if(type & FMOD_MEMORY_STREAM_DECODE)
-	{
-		LL_INFOS() << "Decode buffer size: " << size << LL_ENDL;
-	}
-	else if(type & FMOD_MEMORY_STREAM_FILE)
-	{
-		LL_INFOS() << "Strean buffer size: " << size << LL_ENDL;
-	}
-	return new char[size];
-}
-void* F_STDCALL decode_realloc(void *ptr, unsigned int size, FMOD_MEMORY_TYPE type, const char *sourcestr)
-{
-	memset(ptr,0,size);
-	return ptr;
-}
-void F_STDCALL decode_dealloc(void *ptr, FMOD_MEMORY_TYPE type, const char *sourcestr)
-{
-	delete[] (char*)ptr;
-}
-
-bool LLAudioEngine_FMODEX::init(const S32 num_channels, void* userdata)
-{
-	U32 version;
-	FMOD_RESULT result;
-
-	LL_DEBUGS("AppInit") << "LLAudioEngine_FMODEX::init() initializing FMOD" << LL_ENDL;
-
-	//result = FMOD::Memory_Initialize(NULL, 0, &decode_alloc, &decode_realloc, &decode_dealloc, FMOD_MEMORY_STREAM_DECODE | FMOD_MEMORY_STREAM_FILE);
-	//if(Check_FMOD_Error(result, "FMOD::Memory_Initialize"))
-	//	return false;
-
-	// turn off non-error log spam to fmod.log (TODO: why do we even have an fmod.log if we don't link against log lib?)
-	FMOD::Debug_SetLevel(FMOD_DEBUG_LEVEL_ERROR);
-
-	result = FMOD::System_Create(&mSystem);
-	if(Check_FMOD_Error(result, "FMOD::System_Create"))
-		return false;
-
-	//will call LLAudioEngine_FMODEX::allocateListener, which needs a valid mSystem pointer.
-	LLAudioEngine::init(num_channels, userdata);	
-	
-	result = mSystem->getVersion(&version);
-	Check_FMOD_Error(result, "FMOD::System::getVersion");
-
-	if (version < FMOD_VERSION)
-	{
-		LL_WARNS("AppInit") << "Error : You are using the wrong FMOD Ex version (" << version
-			<< ")!  You should be using FMOD Ex" << FMOD_VERSION << LL_ENDL;
-	}
-
-	result = mSystem->setSoftwareFormat(44100, FMOD_SOUND_FORMAT_PCM16, 0, 0, FMOD_DSP_RESAMPLER_LINEAR);
-	Check_FMOD_Error(result,"FMOD::System::setSoftwareFormat");
-
-	// In this case, all sounds, PLUS wind and stream will be software.
-	result = mSystem->setSoftwareChannels(num_channels + 2);
-	Check_FMOD_Error(result,"FMOD::System::setSoftwareChannels");
-
-	U32 fmod_flags = FMOD_INIT_NORMAL;
-	if(mEnableProfiler)
-	{
-		fmod_flags |= FMOD_INIT_ENABLE_PROFILE;
-		mSystem->createChannelGroup("None", &mChannelGroups[AUDIO_TYPE_NONE]);
-		mSystem->createChannelGroup("SFX", &mChannelGroups[AUDIO_TYPE_SFX]);
-		mSystem->createChannelGroup("UI", &mChannelGroups[AUDIO_TYPE_UI]);
-		mSystem->createChannelGroup("Ambient", &mChannelGroups[AUDIO_TYPE_AMBIENT]);
-	}
-
-#if LL_LINUX
-	bool audio_ok = false;
-
-	if (!audio_ok)
-	{
-		if (NULL == getenv("LL_BAD_FMOD_PULSEAUDIO")) /*Flawfinder: ignore*/
-		{
-			LL_DEBUGS("AppInit") << "Trying PulseAudio audio output..." << LL_ENDL;
-			if(mSystem->setOutput(FMOD_OUTPUTTYPE_PULSEAUDIO) == FMOD_OK &&
-				(result = mSystem->init(num_channels + 2, fmod_flags, 0)) == FMOD_OK)
-			{
-				LL_DEBUGS("AppInit") << "PulseAudio output initialized OKAY"	<< LL_ENDL;
-				audio_ok = true;
-			}
-			else 
-			{
-				Check_FMOD_Error(result, "PulseAudio audio output FAILED to initialize");
-			}
-		} 
-		else 
-		{
-			LL_DEBUGS("AppInit") << "PulseAudio audio output SKIPPED" << LL_ENDL;
-		}	
-	}
-	if (!audio_ok)
-	{
-		if (NULL == getenv("LL_BAD_FMOD_ALSA"))		/*Flawfinder: ignore*/
-		{
-			LL_DEBUGS("AppInit") << "Trying ALSA audio output..." << LL_ENDL;
-			if(mSystem->setOutput(FMOD_OUTPUTTYPE_ALSA) == FMOD_OK &&
-			    (result = mSystem->init(num_channels + 2, fmod_flags, 0)) == FMOD_OK)
-			{
-				LL_DEBUGS("AppInit") << "ALSA audio output initialized OKAY" << LL_ENDL;
-				audio_ok = true;
-			} 
-			else 
-			{
-				Check_FMOD_Error(result, "ALSA audio output FAILED to initialize");
-			}
-		} 
-		else 
-		{
-			LL_DEBUGS("AppInit") << "ALSA audio output SKIPPED" << LL_ENDL;
-		}
-	}
-	if (!audio_ok)
-	{
-		if (NULL == getenv("LL_BAD_FMOD_OSS")) 	 /*Flawfinder: ignore*/
-		{
-			LL_DEBUGS("AppInit") << "Trying OSS audio output..." << LL_ENDL;
-			if(mSystem->setOutput(FMOD_OUTPUTTYPE_OSS) == FMOD_OK &&
-			    (result = mSystem->init(num_channels + 2, fmod_flags, 0)) == FMOD_OK)
-			{
-				LL_DEBUGS("AppInit") << "OSS audio output initialized OKAY" << LL_ENDL;
-				audio_ok = true;
-			}
-			else
-			{
-				Check_FMOD_Error(result, "OSS audio output FAILED to initialize");
-			}
-		}
-		else 
-		{
-			LL_DEBUGS("AppInit") << "OSS audio output SKIPPED" << LL_ENDL;
-		}
-	}
-	if (!audio_ok)
-	{
-		LL_WARNS("AppInit") << "Overall audio init failure." << LL_ENDL;
-		return false;
-	}
-
-	// We're interested in logging which output method we
-	// ended up with, for QA purposes.
-	FMOD_OUTPUTTYPE output_type;
-	mSystem->getOutput(&output_type);
-	switch (output_type)
-	{
-		case FMOD_OUTPUTTYPE_NOSOUND: 
-			LL_INFOS("AppInit") << "Audio output: NoSound" << LL_ENDL; break;
-		case FMOD_OUTPUTTYPE_PULSEAUDIO:	
-			LL_INFOS("AppInit") << "Audio output: PulseAudio" << LL_ENDL; break;
-		case FMOD_OUTPUTTYPE_ALSA: 
-			LL_INFOS("AppInit") << "Audio output: ALSA" << LL_ENDL; break;
-		case FMOD_OUTPUTTYPE_OSS:	
-			LL_INFOS("AppInit") << "Audio output: OSS" << LL_ENDL; break;
-		default:
-			LL_INFOS("AppInit") << "Audio output: Unknown!" << LL_ENDL; break;
-	};
-#else // LL_LINUX
-
-	// initialize the FMOD engine
-	result = mSystem->init( num_channels + 2, fmod_flags, 0);
-	if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)
-	{
-		/*
-		Ok, the speaker mode selected isn't supported by this soundcard. Switch it
-		back to stereo...
-		*/
-		result = mSystem->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
-		Check_FMOD_Error(result,"Error falling back to stereo mode");
-		/*
-		... and re-init.
-		*/
-		result = mSystem->init( num_channels + 2, fmod_flags, 0);
-	}
-	if(Check_FMOD_Error(result, "Error initializing FMOD Ex"))
-		return false;
-#endif
-
-	// set up our favourite FMOD-native streaming audio implementation if none has already been added
-	if (!getStreamingAudioImpl()) // no existing implementation added
-		setStreamingAudioImpl(new LLStreamingAudio_FMODEX(mSystem));
-
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init() FMOD Ex initialized correctly" << LL_ENDL;
-
-	int r_numbuffers, r_samplerate, r_channels, r_bits;
-	unsigned int r_bufferlength;
-	mSystem->getDSPBufferSize(&r_bufferlength, &r_numbuffers);
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_bufferlength=" << r_bufferlength << " bytes" << LL_ENDL;
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_numbuffers=" << r_numbuffers << LL_ENDL;
-
-	mSystem->getSoftwareFormat(&r_samplerate, NULL, &r_channels, NULL, NULL, &r_bits);
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_samplerate=" << r_samplerate << "Hz" << LL_ENDL;
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_channels=" << r_channels << LL_ENDL;
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_bits =" << r_bits << LL_ENDL;
-
-	char r_name[512];
-	mSystem->getDriverInfo(0, r_name, 511, 0);
-	r_name[511] = '\0';
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): r_name=\"" << r_name << "\"" <<  LL_ENDL;
-
-	int latency = 100; // optimistic default - i suspect if sample rate is 0, everything breaks. 
-	if ( r_samplerate != 0 )
-		latency = (int)(1000.0f * r_bufferlength * r_numbuffers / r_samplerate);
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): latency=" << latency << "ms" << LL_ENDL;
-
-	mInited = true;
-
-	LL_INFOS("AppInit") << "LLAudioEngine_FMODEX::init(): initialization complete." << LL_ENDL;
-
-	return true;
-}
-
-
-std::string LLAudioEngine_FMODEX::getDriverName(bool verbose)
-{
-	llassert_always(mSystem);
-	if (verbose)
-	{
-		U32 version;
-		if(!Check_FMOD_Error(mSystem->getVersion(&version), "FMOD::System::getVersion"))
-		{
-			return llformat("FMOD Ex %1x.%02x.%02x", version >> 16, version >> 8 & 0x000000FF, version & 0x000000FF);
-		}
-	}
-	return "FMODEx";
-}
-
-
-void LLAudioEngine_FMODEX::allocateListener(void)
-{	
-	mListenerp = (LLListener *) new LLListener_FMODEX(mSystem);
-	if (!mListenerp)
-	{
-		LL_WARNS() << "Listener creation failed" << LL_ENDL;
-	}
-}
-
-
-void LLAudioEngine_FMODEX::shutdown()
-{
-	stopInternetStream();
-
-	LL_INFOS() << "About to LLAudioEngine::shutdown()" << LL_ENDL;
-	LLAudioEngine::shutdown();
-	
-	LL_INFOS() << "LLAudioEngine_FMODEX::shutdown() closing FMOD Ex" << LL_ENDL;
-	if ( mSystem ) // speculative fix for MAINT-2657
-	{
-		mSystem->close();
-		mSystem->release();
-	}
-	LL_INFOS() << "LLAudioEngine_FMODEX::shutdown() done closing FMOD Ex" << LL_ENDL;
-
-	delete mListenerp;
-	mListenerp = NULL;
-}
-
-
-LLAudioBuffer * LLAudioEngine_FMODEX::createBuffer()
-{
-	return new LLAudioBufferFMODEX(mSystem);
-}
-
-
-LLAudioChannel * LLAudioEngine_FMODEX::createChannel()
-{
-	return new LLAudioChannelFMODEX(mSystem);
-}
-
-bool LLAudioEngine_FMODEX::initWind()
-{
-	mNextWindUpdate = 0.0;
-
-	if (!mWindDSP)
-	{
-		memset(mWindDSPDesc, 0, sizeof(*mWindDSPDesc));	//Set everything to zero
-		strncpy(mWindDSPDesc->name, "Wind Unit", sizeof(mWindDSPDesc->name));
-		mWindDSPDesc->channels = 2;
-		mWindDSPDesc->read = &windCallback; // Assign callback - may be called from arbitrary threads
-		if (Check_FMOD_Error(mSystem->createDSP(mWindDSPDesc, &mWindDSP), "FMOD::createDSP"))
-			return false;
-
-		if (mWindGen)
-			delete mWindGen;
-	
-		float frequency = 44100;
-		mWindDSP->getDefaults(&frequency,0,0,0);
-		mWindGen = new LLWindGen<MIXBUFFERFORMAT>((U32)frequency);
-		mWindDSP->setUserData((void*)mWindGen);
-	}
-
-	// *TODO:  Should this guard against multiple plays?
-	if (mWindDSP)
-	{
-		mSystem->playDSP(FMOD_CHANNEL_FREE, mWindDSP, false, 0);
-		return true;
-	}
-	return false;
-}
-
-
-void LLAudioEngine_FMODEX::cleanupWind()
-{
-	if (mWindDSP)
-	{
-		mWindDSP->remove();
-		mWindDSP->release();
-		mWindDSP = NULL;
-	}
-
-	delete mWindGen;
-	mWindGen = NULL;
-}
-
-
-//-----------------------------------------------------------------------
-void LLAudioEngine_FMODEX::updateWind(LLVector3 wind_vec, F32 camera_height_above_water)
-{
-	LLVector3 wind_pos;
-	F64 pitch;
-	F64 center_freq;
-
-	if (!mEnableWind)
-	{
-		return;
-	}
-	
-	if (mWindUpdateTimer.checkExpirationAndReset(LL_WIND_UPDATE_INTERVAL))
-	{
-		
-		// wind comes in as Linden coordinate (+X = forward, +Y = left, +Z = up)
-		// need to convert this to the conventional orientation DS3D and OpenAL use
-		// where +X = right, +Y = up, +Z = backwards
-
-		wind_vec.setVec(-wind_vec.mV[1], wind_vec.mV[2], -wind_vec.mV[0]);
-
-		// cerr << "Wind update" << endl;
-
-		pitch = 1.0 + mapWindVecToPitch(wind_vec);
-		center_freq = 80.0 * pow(pitch,2.5*(mapWindVecToGain(wind_vec)+1.0));
-		
-		mWindGen->mTargetFreq = (F32)center_freq;
-		mWindGen->mTargetGain = (F32)mapWindVecToGain(wind_vec) * mMaxWindGain;
-		mWindGen->mTargetPanGainR = (F32)mapWindVecToPan(wind_vec);
-  	}
-}
-
-//-----------------------------------------------------------------------
-void LLAudioEngine_FMODEX::setInternalGain(F32 gain)
-{
-	if (!mInited)
-	{
-		return;
-	}
-
-	gain = llclamp( gain, 0.0f, 1.0f );
-
-	FMOD::ChannelGroup *master_group;
-	mSystem->getMasterChannelGroup(&master_group);
-
-	master_group->setVolume(gain);
-
-	LLStreamingAudioInterface *saimpl = getStreamingAudioImpl();
-	if ( saimpl )
-	{
-		// fmod likes its streaming audio channel gain re-asserted after
-		// master volume change.
-		saimpl->setGain(saimpl->getGain());
-	}
-}
-
-//
-// LLAudioChannelFMODEX implementation
-//
-
-LLAudioChannelFMODEX::LLAudioChannelFMODEX(FMOD::System *system) : LLAudioChannel(), mSystemp(system), mChannelp(NULL), mLastSamplePos(0)
-{
-}
-
-
-LLAudioChannelFMODEX::~LLAudioChannelFMODEX()
-{
-	cleanup();
-}
-
-bool LLAudioChannelFMODEX::updateBuffer()
-{
-	if (LLAudioChannel::updateBuffer())
-	{
-		// Base class update returned true, which means that we need to actually
-		// set up the channel for a different buffer.
-
-		LLAudioBufferFMODEX *bufferp = (LLAudioBufferFMODEX *)mCurrentSourcep->getCurrentBuffer();
-
-		// Grab the FMOD sample associated with the buffer
-		FMOD::Sound *soundp = bufferp->getSound();
-		if (!soundp)
-		{
-			// This is bad, there should ALWAYS be a sound associated with a legit
-			// buffer.
-			LL_ERRS() << "No FMOD sound!" << LL_ENDL;
-			return false;
-		}
-
-
-		// Actually play the sound.  Start it off paused so we can do all the necessary
-		// setup.
-		if(!mChannelp)
-		{
-			FMOD_RESULT result = getSystem()->playSound(FMOD_CHANNEL_FREE, soundp, true, &mChannelp);
-			Check_FMOD_Error(result, "FMOD::System::playSound");
-		}
-
-		//LL_INFOS() << "Setting up channel " << std::hex << mChannelID << std::dec << LL_ENDL;
-	}
-
-	// If we have a source for the channel, we need to update its gain.
-	if (mCurrentSourcep)
-	{
-		// SJB: warnings can spam and hurt framerate, disabling
-		//FMOD_RESULT result;
-
-		mChannelp->setVolume(getSecondaryGain() * mCurrentSourcep->getGain());
-		//Check_FMOD_Error(result, "FMOD::Channel::setVolume");
-
-		mChannelp->setMode(mCurrentSourcep->isLoop() ? FMOD_LOOP_NORMAL : FMOD_LOOP_OFF);
-		/*if(Check_FMOD_Error(result, "FMOD::Channel::setMode"))
-		{
-			S32 index;
-			mChannelp->getIndex(&index);
- 			LL_WARNS() << "Channel " << index << "Source ID: " << mCurrentSourcep->getID()
- 					<< " at " << mCurrentSourcep->getPositionGlobal() << LL_ENDL;		
-		}*/
-	}
-
-	return true;
-}
-
-
-void LLAudioChannelFMODEX::update3DPosition()
-{
-	if (!mChannelp)
-	{
-		// We're not actually a live channel (i.e., we're not playing back anything)
-		return;
-	}
-
-	LLAudioBufferFMODEX  *bufferp = (LLAudioBufferFMODEX  *)mCurrentBufferp;
-	if (!bufferp)
-	{
-		// We don't have a buffer associated with us (should really have been picked up
-		// by the above if.
-		return;
-	}
-
-	if (mCurrentSourcep->isAmbient())
-	{
-		// Ambient sound, don't need to do any positional updates.
-		set3DMode(false);
-	}
-	else
-	{
-		// Localized sound.  Update the position and velocity of the sound.
-		set3DMode(true);
-
-		LLVector3 float_pos;
-		float_pos.setVec(mCurrentSourcep->getPositionGlobal());
-		FMOD_RESULT result = mChannelp->set3DAttributes((FMOD_VECTOR*)float_pos.mV, (FMOD_VECTOR*)mCurrentSourcep->getVelocity().mV);
-		Check_FMOD_Error(result, "FMOD::Channel::set3DAttributes");
-	}
-}
-
-
-void LLAudioChannelFMODEX::updateLoop()
-{
-	if (!mChannelp)
-	{
-		// May want to clear up the loop/sample counters.
-		return;
-	}
-
-	//
-	// Hack:  We keep track of whether we looped or not by seeing when the
-	// sample position looks like it's going backwards.  Not reliable; may
-	// yield false negatives.
-	//
-	U32 cur_pos;
-	mChannelp->getPosition(&cur_pos,FMOD_TIMEUNIT_PCMBYTES);
-
-	if (cur_pos < (U32)mLastSamplePos)
-	{
-		mLoopedThisFrame = true;
-	}
-	mLastSamplePos = cur_pos;
-}
-
-
-void LLAudioChannelFMODEX::cleanup()
-{
-	if (!mChannelp)
-	{
-		//LL_INFOS() << "Aborting cleanup with no channel handle." << LL_ENDL;
-		return;
-	}
-
-	//LL_INFOS() << "Cleaning up channel: " << mChannelID << LL_ENDL;
-	Check_FMOD_Error(mChannelp->stop(),"FMOD::Channel::stop");
-
-	mCurrentBufferp = NULL;
-	mChannelp = NULL;
-}
-
-
-void LLAudioChannelFMODEX::play()
-{
-	if (!mChannelp)
-	{
-		LL_WARNS() << "Playing without a channel handle, aborting" << LL_ENDL;
-		return;
-	}
-
-	Check_FMOD_Error(mChannelp->setPaused(false), "FMOD::Channel::pause");
-
-	getSource()->setPlayedOnce(true);
-
-	if(LLAudioEngine_FMODEX::mChannelGroups[getSource()->getType()])
-		mChannelp->setChannelGroup(LLAudioEngine_FMODEX::mChannelGroups[getSource()->getType()]);
-}
-
-
-void LLAudioChannelFMODEX::playSynced(LLAudioChannel *channelp)
-{
-	LLAudioChannelFMODEX *fmod_channelp = (LLAudioChannelFMODEX*)channelp;
-	if (!(fmod_channelp->mChannelp && mChannelp))
-	{
-		// Don't have channels allocated to both the master and the slave
-		return;
-	}
-
-	U32 cur_pos;
-	if(Check_FMOD_Error(mChannelp->getPosition(&cur_pos,FMOD_TIMEUNIT_PCMBYTES), "Unable to retrieve current position"))
-		return;
-
-	cur_pos %= mCurrentBufferp->getLength();
-	
-	// Try to match the position of our sync master
-	Check_FMOD_Error(mChannelp->setPosition(cur_pos,FMOD_TIMEUNIT_PCMBYTES),"Unable to set current position");
-
-	// Start us playing
-	play();
-}
-
-
-bool LLAudioChannelFMODEX::isPlaying()
-{
-	if (!mChannelp)
-	{
-		return false;
-	}
-
-	bool paused, playing;
-	mChannelp->getPaused(&paused);
-	mChannelp->isPlaying(&playing);
-	return !paused && playing;
-}
-
-
-//
-// LLAudioChannelFMODEX implementation
-//
-
-
-LLAudioBufferFMODEX::LLAudioBufferFMODEX(FMOD::System *system) : mSystemp(system), mSoundp(NULL)
-{
-}
-
-
-LLAudioBufferFMODEX::~LLAudioBufferFMODEX()
-{
-	if(mSoundp)
-	{
-		mSoundp->release();
-		mSoundp = NULL;
-	}
-}
-
-
-bool LLAudioBufferFMODEX::loadWAV(const std::string& filename)
-{
-	// Try to open a wav file from disk.  This will eventually go away, as we don't
-	// really want to block doing this.
-	if (filename.empty())
-	{
-		// invalid filename, abort.
-		return false;
-	}
-
-	if (!LLAPRFile::isExist(filename, NULL, LL_APR_RPB))
-	{
-		// File not found, abort.
-		return false;
-	}
-	
-	if (mSoundp)
-	{
-		// If there's already something loaded in this buffer, clean it up.
-		mSoundp->release();
-		mSoundp = NULL;
-	}
-
-	FMOD_MODE base_mode = FMOD_LOOP_NORMAL | FMOD_SOFTWARE;
-	FMOD_CREATESOUNDEXINFO exinfo;
-	memset(&exinfo,0,sizeof(exinfo));
-	exinfo.cbsize = sizeof(exinfo);
-	exinfo.suggestedsoundtype = FMOD_SOUND_TYPE_WAV;	//Hint to speed up loading.
-	// Load up the wav file into an fmod sample
-#if LL_WINDOWS
-	FMOD_RESULT result = getSystem()->createSound((const char*)utf8str_to_utf16str(filename).c_str(), base_mode | FMOD_UNICODE, &exinfo, &mSoundp);
-#else
-	FMOD_RESULT result = getSystem()->createSound(filename.c_str(), base_mode, &exinfo, &mSoundp);
-#endif
-
-	if (result != FMOD_OK)
-	{
-		// We failed to load the file for some reason.
-		LL_WARNS() << "Could not load data '" << filename << "': " << FMOD_ErrorString(result) << LL_ENDL;
-
-		//
-		// If we EVER want to load wav files provided by end users, we need
-		// to rethink this!
-		//
-		// file is probably corrupt - remove it.
-		LLFile::remove(filename);
-		return false;
-	}
-
-	// Everything went well, return true
-	return true;
-}
-
-
-U32 LLAudioBufferFMODEX::getLength()
-{
-	if (!mSoundp)
-	{
-		return 0;
-	}
-
-	U32 length;
-	mSoundp->getLength(&length, FMOD_TIMEUNIT_PCMBYTES);
-	return length;
-}
-
-
-void LLAudioChannelFMODEX::set3DMode(bool use3d)
-{
-	FMOD_MODE current_mode;
-	if(mChannelp->getMode(&current_mode) != FMOD_OK)
-		return;
-	FMOD_MODE new_mode = current_mode;	
-	new_mode &= ~(use3d ? FMOD_2D : FMOD_3D);
-	new_mode |= use3d ? FMOD_3D : FMOD_2D;
-
-	if(current_mode != new_mode)
-	{
-		mChannelp->setMode(new_mode);
-	}
-}
-
-// *NOTE:  This is almost certainly being called on the mixer thread,
-// not the main thread.  May have implications for callees or audio
-// engine shutdown.
-
-FMOD_RESULT F_CALLBACK windCallback(FMOD_DSP_STATE *dsp_state, float *originalbuffer, float *newbuffer, unsigned int length, int inchannels, int outchannels)
-{
-	// originalbuffer = fmod's original mixbuffer.
-	// newbuffer = the buffer passed from the previous DSP unit.
-	// length = length in samples at this mix time.
-	// userdata = user parameter passed through in FSOUND_DSP_Create.
-	
-	LLWindGen<LLAudioEngine_FMODEX::MIXBUFFERFORMAT> *windgen;
-	FMOD::DSP *thisdsp = (FMOD::DSP *)dsp_state->instance;
-
-	thisdsp->getUserData((void **)&windgen);
-	S32 channels, configwidth, configheight;
-	thisdsp->getInfo(0, 0, &channels, &configwidth, &configheight);
-	
-	windgen->windGenerate((LLAudioEngine_FMODEX::MIXBUFFERFORMAT *)newbuffer, length);
-
-	return FMOD_OK;
-}