Add define to enable/disable external 3d audio simulation

4 files changed, 123 insertions, 2 deletions

diff --git a/src/audio/AudioLogic.cpp b/src/audio/AudioLogic.cpp
index d4d1ed96..e9ce7777 100644
--- a/src/audio/AudioLogic.cpp
+++ b/src/audio/AudioLogic.cpp
@@ -1329,6 +1329,9 @@ cAudioManager::ProcessPlayersVehicleEngine(cVehicleParams& params, CAutomobile *
 				AddPlayerCarSample(vol, freq, (engineSoundType - CAR_SFX_BANKS_OFFSET + SFX_CAR_REV_1), SFX_BANK_0, 2, TRUE);
 			} else {
 				TranslateEntity(&m_sQueueSample.m_vecPos, &pos);
+#ifndef EXTERNAL_3D_SOUND
+				m_sQueueSample.m_nOffset = ComputePan(m_sQueueSample.m_fDistance, &pos);
+#endif
 				if (bAccelSampleStopped) {
 					if (CurrentPretendGear != 1 || currentGear != 2) {
 						gearNr = currentGear - 1;
@@ -1356,9 +1359,15 @@ cAudioManager::ProcessPlayersVehicleEngine(cVehicleParams& params, CAutomobile *
 					SampleManager.SetChannelLoopPoints(CHANNEL_PLAYER_VEHICLE_ENGINE, 0, -1);
 				}
 
+#ifdef EXTERNAL_3D_SOUND
 				SampleManager.SetChannelEmittingVolume(CHANNEL_PLAYER_VEHICLE_ENGINE, 85);
 				SampleManager.SetChannel3DPosition(CHANNEL_PLAYER_VEHICLE_ENGINE, pos.x, pos.y, pos.z);
 				SampleManager.SetChannel3DDistances(CHANNEL_PLAYER_VEHICLE_ENGINE, 50.f, 12.5f);
+#else
+				
+				SampleManager.SetChannelVolume(CHANNEL_PLAYER_VEHICLE_ENGINE, ComputeVolume(85, 50.0f, m_sQueueSample.m_fDistance));
+				SampleManager.SetChannelPan(CHANNEL_PLAYER_VEHICLE_ENGINE, m_sQueueSample.m_nOffset);
+#endif
 				freq = GearFreqAdj[CurrentPretendGear] + freqModifier + 22050;
 				if (engineSoundType == SFX_BANK_TRUCK)
 					freq /= 2;
diff --git a/src/audio/AudioManager.cpp b/src/audio/AudioManager.cpp
index 22415e76..b5836a6e 100644
--- a/src/audio/AudioManager.cpp
+++ b/src/audio/AudioManager.cpp
@@ -56,11 +56,16 @@ cAudioManager::Initialise()
 		PreInitialiseGameSpecificSetup();
 		m_bIsInitialised = SampleManager.Initialise();
 		if (m_bIsInitialised) {
+#ifdef EXTERNAL_3D_SOUND
 			m_nActiveSamples = SampleManager.GetMaximumSupportedChannels();
 			if (m_nActiveSamples <= 1) {
 				Terminate();
 			} else {
 				--m_nActiveSamples;
+#else
+			{
+				m_nActiveSamples = NUM_CHANNELS_GENERIC;
+#endif
 				PostInitialiseGameSpecificSetup();
 				InitialisePoliceRadioZones();
 				InitialisePoliceRadio();
@@ -375,9 +380,11 @@ cAudioManager::SetCurrent3DProvider(uint8 which)
 	ClearActiveSamples();
 	int8 current = SampleManager.SetCurrent3DProvider(which);
 	if (current > 0) {
+#ifdef EXTERNAL_3D_SOUND
 		m_nActiveSamples = SampleManager.GetMaximumSupportedChannels();
 		if (m_nActiveSamples > 1)
 			--m_nActiveSamples;
+#endif
 	}
 	return current;
 }
@@ -786,10 +793,12 @@ cAudioManager::ProcessActiveQueues()
 	uint32 v28;
 	uint32 v29;
 
+#ifdef EXTERNAL_3D_SOUND
 	float x;
 	float usedX;
 	float usedY;
 	float usedZ;
+#endif
 
 	uint8 vol;
 	uint8 emittingVol;
@@ -825,13 +834,26 @@ cAudioManager::ProcessActiveQueues()
 					sample.m_nVolumeChange = -1;
 					if (!sample.m_bReleasingSoundFlag) {
 						if (sample.m_bIs2D) {
+#ifdef EXTERNAL_3D_SOUND
 							if (field_4) {
 								emittingVol = 2 * Min(63, sample.m_nEmittingVolume);
 							} else {
 								emittingVol = sample.m_nEmittingVolume;
 							}
+#else
+							if (field_4) {
+								emittingVol = 2 * Min(63, sample.m_nVolume);
+							} else {
+								emittingVol = sample.m_nVolume;
+							}
+#endif
 							SampleManager.SetChannelFrequency(j, sample.m_nFrequency);
+#ifdef EXTERNAL_3D_SOUND
 							SampleManager.SetChannelEmittingVolume(j, emittingVol);
+#else
+							SampleManager.SetChannelPan(j, sample.m_nOffset);
+							SampleManager.SetChannelVolume(j, sample.m_nVolume);
+#endif
 						} else {
 							m_asActiveSamples[j].m_fDistance = sample.m_fDistance;
 							position2 = sample.m_fDistance;
@@ -852,6 +874,7 @@ cAudioManager::ProcessActiveQueues()
 								SampleManager.SetChannelFrequency(j, freq);
 							}
 
+#ifdef EXTERNAL_3D_SOUND
 							if (sample.m_nEmittingVolume != m_asActiveSamples[j].m_nEmittingVolume) {
 								if (sample.m_nEmittingVolume <= m_asActiveSamples[j].m_nEmittingVolume) {
 									vol = Max(m_asActiveSamples[j].m_nEmittingVolume - 10, sample.m_nEmittingVolume);
@@ -868,9 +891,32 @@ cAudioManager::ProcessActiveQueues()
 								SampleManager.SetChannelEmittingVolume(j, emittingVol);
 								m_asActiveSamples[j].m_nEmittingVolume = vol;
 							}
+#else
+							if (sample.m_nVolume != m_asActiveSamples[j].m_nVolume) {
+								if (sample.m_nVolume <= m_asActiveSamples[j].m_nVolume) {
+									vol = Max(m_asActiveSamples[j].m_nVolume - 10, sample.m_nVolume);
+								} else {
+									vol = Min(m_asActiveSamples[j].m_nVolume + 10, sample.m_nVolume);
+								}
+								m_asActiveSamples[j].m_nVolume = vol;
+
+								uint8 emittingVol;
+								if (field_4) {
+									emittingVol = 2 * Min(63, vol);
+								} else {
+									emittingVol = vol;
+								}
+								SampleManager.SetChannelVolume(j, emittingVol);
+							}
+#endif
 							TranslateEntity(&sample.m_vecPos, &position);
+#ifdef EXTERNAL_3D_SOUND
 							SampleManager.SetChannel3DPosition(j, position.x, position.y, position.z);
 							SampleManager.SetChannel3DDistances(j, sample.m_fSoundIntensity, 0.25f * sample.m_fSoundIntensity);
+#else
+							sample.m_nOffset = ComputePan(sample.m_fDistance, &position);
+							SampleManager.SetChannelPan(j, sample.m_nOffset);
+#endif
 						}
 						SampleManager.SetChannelReverbFlag(j, sample.m_bReverbFlag);
 						break;
@@ -905,19 +951,38 @@ cAudioManager::ProcessActiveQueues()
 							sample.m_nReleasingVolumeDivider = v29 / v28 + 1;
 						}
 						memcpy(&m_asActiveSamples[j], &sample, sizeof(tSound));
-						if (!m_asActiveSamples[j].m_bIs2D)
+						if (!m_asActiveSamples[j].m_bIs2D) {
 							TranslateEntity(&m_asActiveSamples[j].m_vecPos, &position);
+#ifndef EXTERNAL_3D_SOUND
+							m_asActiveSamples[j].m_nOffset = ComputePan(m_asActiveSamples[j].m_fDistance, &position);
+#endif
+
+						}
+#ifdef EXTERNAL_3D_SOUND
 						if (field_4) {
 							emittingVol = 2 * Min(63, m_asActiveSamples[j].m_nEmittingVolume);
 						} else {
 							emittingVol = m_asActiveSamples[j].m_nEmittingVolume;
 						}
+#else
+						if (field_4) {
+							emittingVol = 2 * Min(63, m_asActiveSamples[j].m_nVolume);
+						} else {
+							emittingVol = m_asActiveSamples[j].m_nVolume;
+						}
+#endif
 						if (SampleManager.InitialiseChannel(j, m_asActiveSamples[j].m_nSampleIndex, m_asActiveSamples[j].m_nBankIndex)) {
 							SampleManager.SetChannelFrequency(j, m_asActiveSamples[j].m_nFrequency);
+#ifdef EXTERNAL_3D_SOUND
 							SampleManager.SetChannelEmittingVolume(j, emittingVol);
+#else
+							SampleManager.SetChannelVolume(j, m_asActiveSamples[j].m_nVolume);
+							SampleManager.SetChannelPan(j, m_asActiveSamples[j].m_nOffset);
+#endif
 							SampleManager.SetChannelLoopPoints(j, m_asActiveSamples[j].m_nLoopStart, m_asActiveSamples[j].m_nLoopEnd);
 							SampleManager.SetChannelLoopCount(j, m_asActiveSamples[j].m_nLoopCount);
 							SampleManager.SetChannelReverbFlag(j, m_asActiveSamples[j].m_bReverbFlag);
+#ifdef EXTERNAL_3D_SOUND
 							if (m_asActiveSamples[j].m_bIs2D) {
 								uint8 offset = m_asActiveSamples[j].m_nOffset;
 								if (offset == 63) {
@@ -938,6 +1003,7 @@ cAudioManager::ProcessActiveQueues()
 							}
 							SampleManager.SetChannel3DPosition(j, usedX, usedY, usedZ);
 							SampleManager.SetChannel3DDistances(j, m_asActiveSamples[j].m_fSoundIntensity, 0.25f * m_asActiveSamples[j].m_fSoundIntensity);
+#endif
 							SampleManager.StartChannel(j);
 						}
 						m_asActiveSamples[j].m_bIsProcessed = TRUE;
diff --git a/src/audio/sampman.h b/src/audio/sampman.h
index dc95622b..2c64fdef 100644
--- a/src/audio/sampman.h
+++ b/src/audio/sampman.h
@@ -100,9 +100,15 @@ enum
 
 #define MAXPROVIDERS               64
 
+#ifdef EXTERNAL_3D_SOUND
 #define MAXCHANNELS                (NUM_CHANNELS_GENERIC+1)
 #define MAXCHANNELS_SURROUND       (MAXCHANNELS-4)
 #define MAX2DCHANNELS              1
+#else
+#define MAXCHANNELS                0
+#define MAXCHANNELS_SURROUND       0
+#define MAX2DCHANNELS              NUM_CHANNELS
+#endif
 
 #define MAX_STREAMS                2
 
diff --git a/src/audio/sampman_miles.cpp b/src/audio/sampman_miles.cpp
index 7c40d15d..d0c7992c 100644
--- a/src/audio/sampman_miles.cpp
+++ b/src/audio/sampman_miles.cpp
@@ -92,7 +92,7 @@ S32         curprovider=-1;
 S32         usingEAX=0;
 S32         usingEAX3=0;
 HPROVIDER   opened_provider=0;
-H3DSAMPLE   opened_samples[MAXCHANNELS] = {0};
+H3DSAMPLE   opened_samples[MAXCHANNELS ? MAXCHANNELS : 1] = {0};
 HSAMPLE     opened_2dsamples[MAX2DCHANNELS] = {0};
 HDIGDRIVER  DIG;
 S32         speaker_type=0;
@@ -1709,7 +1709,11 @@ cSampleManager::SetChannelReverbFlag(uint32 nChannel, bool8 nReverbFlag)
 	
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1738,7 +1742,11 @@ cSampleManager::InitialiseChannel(uint32 nChannel, uint32 nSfx, uint8 nBank)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1838,7 +1846,11 @@ cSampleManager::SetChannelVolume(uint32 nChannel, uint32 nVolume)
 	
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			nChannelVolume[nChannel] = vol;
 			
@@ -1866,7 +1878,11 @@ cSampleManager::SetChannelPan(uint32 nChannel, uint32 nPan)
 {
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 #ifndef FIX_BUGS
 			if ( opened_samples[nChannel - MAXCHANNELS] ) // BUG
@@ -1887,7 +1903,11 @@ cSampleManager::SetChannelFrequency(uint32 nChannel, uint32 nFreq)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1913,7 +1933,11 @@ cSampleManager::SetChannelLoopPoints(uint32 nChannel, uint32 nLoopStart, int32 n
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1939,7 +1963,11 @@ cSampleManager::SetChannelLoopCount(uint32 nChannel, uint32 nLoopCount)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1965,7 +1993,11 @@ cSampleManager::GetChannelUsedFlag(uint32 nChannel)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -1996,7 +2028,11 @@ cSampleManager::StartChannel(uint32 nChannel)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;
@@ -2022,7 +2058,11 @@ cSampleManager::StopChannel(uint32 nChannel)
 
 	switch ( nChannel )
 	{
+#ifdef EXTERNAL_3D_SOUND
 		case CHANNEL_POLICE_RADIO:
+#else
+		default:
+#endif
 		{
 			b2d = TRUE;
 			break;