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-rw-r--r--src/audio/oal/channel.cpp134
1 files changed, 74 insertions, 60 deletions
diff --git a/src/audio/oal/channel.cpp b/src/audio/oal/channel.cpp
index 731e3581..673a4aed 100644
--- a/src/audio/oal/channel.cpp
+++ b/src/audio/oal/channel.cpp
@@ -10,17 +10,49 @@
extern bool IsFXSupported();
+ALuint alSources[MAXCHANNELS+MAX2DCHANNELS];
+ALuint alFilters[MAXCHANNELS+MAX2DCHANNELS];
+ALuint alBuffers[MAXCHANNELS+MAX2DCHANNELS];
+bool bChannelsCreated = false;
+
+void
+CChannel::InitChannels()
+{
+ alGenSources(MAXCHANNELS+MAX2DCHANNELS, alSources);
+ alGenBuffers(MAXCHANNELS+MAX2DCHANNELS, alBuffers);
+ if (IsFXSupported())
+ alGenFilters(MAXCHANNELS + MAX2DCHANNELS, alFilters);
+ bChannelsCreated = true;
+}
+
+void
+CChannel::DestroyChannels()
+{
+ if (bChannelsCreated)
+ {
+ alDeleteSources(MAXCHANNELS + MAX2DCHANNELS, alSources);
+ memset(alSources, 0, sizeof(alSources));
+ alDeleteBuffers(MAXCHANNELS + MAX2DCHANNELS, alBuffers);
+ memset(alBuffers, 0, sizeof(alBuffers));
+ if (IsFXSupported())
+ {
+ alDeleteFilters(MAXCHANNELS + MAX2DCHANNELS, alFilters);
+ memset(alFilters, 0, sizeof(alFilters));
+ }
+ bChannelsCreated = false;
+ }
+}
+
+
CChannel::CChannel()
{
- alSource = AL_NONE;
- alFilter = AL_FILTER_NULL;
+ Data = nil;
+ DataSize = 0;
SetDefault();
}
void CChannel::SetDefault()
{
- alBuffer = AL_NONE;
-
Pitch = 1.0f;
Gain = 1.0f;
Mix = 0.0f;
@@ -39,25 +71,19 @@ void CChannel::Reset()
SetDefault();
}
-void CChannel::Init(bool Is2D)
+void CChannel::Init(uint32 _id, bool Is2D)
{
- ASSERT(!HasSource());
- alGenSources(1, &alSource);
+ id = _id;
if ( HasSource() )
{
- alSourcei(alSource, AL_SOURCE_RELATIVE, AL_TRUE);
+ alSourcei(alSources[id], AL_SOURCE_RELATIVE, AL_TRUE);
if ( IsFXSupported() )
- alSource3i(alSource, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
+ alSource3i(alSources[id], AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
if ( Is2D )
{
- alSource3f(alSource, AL_POSITION, 0.0f, 0.0f, 0.0f);
- alSourcef (alSource, AL_GAIN, 1.0f);
- }
- else
- {
- if ( IsFXSupported() )
- alGenFilters(1,&alFilter);
+ alSource3f(alSources[id], AL_POSITION, 0.0f, 0.0f, 0.0f);
+ alSourcef(alSources[id], AL_GAIN, 1.0f);
}
}
}
@@ -69,39 +95,34 @@ void CChannel::Term()
{
if ( IsFXSupported() )
{
- alSource3i(alSource, AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
-
- if(alFilter != AL_FILTER_NULL)
- alDeleteFilters(1,&alFilter);
+ alSource3i(alSources[id], AL_AUXILIARY_SEND_FILTER, AL_EFFECTSLOT_NULL, 0, AL_FILTER_NULL);
}
-
- alDeleteSources(1, &alSource);
}
- alSource = AL_NONE;
- alFilter = AL_FILTER_NULL;
}
void CChannel::Start()
{
if ( !HasSource() ) return;
-
+ if ( !Data ) return;
+
+ alBufferData(alBuffers[id], AL_FORMAT_MONO16, Data, DataSize, Frequency);
if ( LoopPoints[0] != 0 && LoopPoints[0] != -1 )
- alBufferiv(alBuffer, AL_LOOP_POINTS_SOFT, LoopPoints);
- alSourcei (alSource, AL_BUFFER, alBuffer);
- alSourcePlay(alSource);
+ alBufferiv(alBuffers[id], AL_LOOP_POINTS_SOFT, LoopPoints);
+ alSourcei(alSources[id], AL_BUFFER, alBuffers[id]);
+ alSourcePlay(alSources[id]);
}
void CChannel::Stop()
{
if ( HasSource() )
- alSourceStop(alSource);
+ alSourceStop(alSources[id]);
Reset();
}
bool CChannel::HasSource()
{
- return alSource != AL_NONE;
+ return alSources[id] != AL_NONE;
}
bool CChannel::IsUsed()
@@ -109,7 +130,7 @@ bool CChannel::IsUsed()
if ( HasSource() )
{
ALint sourceState;
- alGetSourcei(alSource, AL_SOURCE_STATE, &sourceState);
+ alGetSourcei(alSources[id], AL_SOURCE_STATE, &sourceState);
return sourceState == AL_PLAYING;
}
return false;
@@ -118,27 +139,24 @@ bool CChannel::IsUsed()
void CChannel::SetPitch(float pitch)
{
if ( !HasSource() ) return;
- alSourcef(alSource, AL_PITCH, pitch);
+ alSourcef(alSources[id], AL_PITCH, pitch);
}
void CChannel::SetGain(float gain)
{
if ( !HasSource() ) return;
- alSourcef(alSource, AL_GAIN, gain);
+ alSourcef(alSources[id], AL_GAIN, gain);
}
void CChannel::SetVolume(int32 vol)
{
SetGain(ALfloat(vol) / MAX_VOLUME);
}
-
-void CChannel::SetSampleID(uint32 nSfx)
-{
- Sample = nSfx;
-}
-
-void CChannel::SetFreq(int32 freq)
+
+void CChannel::SetSampleData(void *_data, size_t _DataSize, int32 freq)
{
+ Data = _data;
+ DataSize = _DataSize;
Frequency = freq;
}
@@ -150,7 +168,7 @@ void CChannel::SetCurrentFreq(uint32 freq)
void CChannel::SetLoopCount(int32 loopCount) // fake. TODO:
{
if ( !HasSource() ) return;
- alSourcei(alSource, AL_LOOPING, loopCount == 1 ? AL_FALSE : AL_TRUE);
+ alSourcei(alSources[id], AL_LOOPING, loopCount == 1 ? AL_FALSE : AL_TRUE);
}
void CChannel::SetLoopPoints(ALint start, ALint end)
@@ -162,53 +180,49 @@ void CChannel::SetLoopPoints(ALint start, ALint end)
void CChannel::SetPosition(float x, float y, float z)
{
if ( !HasSource() ) return;
- alSource3f(alSource, AL_POSITION, x, y, z);
+ alSource3f(alSources[id], AL_POSITION, x, y, z);
}
void CChannel::SetDistances(float max, float min)
{
if ( !HasSource() ) return;
- alSourcef (alSource, AL_MAX_DISTANCE, max);
- alSourcef (alSource, AL_REFERENCE_DISTANCE, min);
- alSourcef (alSource, AL_MAX_GAIN, 1.0f);
- alSourcef (alSource, AL_ROLLOFF_FACTOR, 1.0f);
+ alSourcef (alSources[id], AL_MAX_DISTANCE, max);
+ alSourcef (alSources[id], AL_REFERENCE_DISTANCE, min);
+ alSourcef (alSources[id], AL_MAX_GAIN, 1.0f);
+ alSourcef (alSources[id], AL_ROLLOFF_FACTOR, 1.0f);
}
-void CChannel::SetPan(uint32 pan)
+void CChannel::SetPan(int32 pan)
{
SetPosition((pan-63)/64.0f, 0.0f, Sqrt(1.0f-SQR((pan-63)/64.0f)));
}
-void CChannel::SetBuffer(ALuint buffer)
-{
- alBuffer = buffer;
-}
-
void CChannel::ClearBuffer()
{
if ( !HasSource() ) return;
- SetBuffer(AL_NONE);
- alSourcei(alSource, AL_BUFFER, AL_NONE);
+ alSourcei(alSources[id], AL_BUFFER, AL_NONE);
+ Data = nil;
+ DataSize = 0;
}
void CChannel::SetReverbMix(ALuint slot, float mix)
{
if ( !IsFXSupported() ) return;
if ( !HasSource() ) return;
- if ( alFilter == AL_FILTER_NULL ) return;
+ if ( alFilters[id] == AL_FILTER_NULL ) return;
Mix = mix;
- EAX3_SetReverbMix(alFilter, mix);
- alSource3i(alSource, AL_AUXILIARY_SEND_FILTER, slot, 0, alFilter);
+ EAX3_SetReverbMix(alFilters[id], mix);
+ alSource3i(alSources[id], AL_AUXILIARY_SEND_FILTER, slot, 0, alFilters[id]);
}
void CChannel::UpdateReverb(ALuint slot)
{
if ( !IsFXSupported() ) return;
if ( !HasSource() ) return;
- if ( alFilter == AL_FILTER_NULL ) return;
- EAX3_SetReverbMix(alFilter, Mix);
- alSource3i(alSource, AL_AUXILIARY_SEND_FILTER, slot, 0, alFilter);
+ if ( alFilters[id] == AL_FILTER_NULL ) return;
+ EAX3_SetReverbMix(alFilters[id], Mix);
+ alSource3i(alSources[id], AL_AUXILIARY_SEND_FILTER, slot, 0, alFilters[id]);
}
#endif
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