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/*
* AudioCustomFilter.cpp
* Xcode
*
* Created by Søren Christiansen on 9/12/10.
* Copyright 2010 Unity Technologies. All rights reserved.
*
*/
#include "UnityPrefix.h"
#if ENABLE_AUDIO_FMOD
#include "AudioCustomFilter.h"
#include "AudioSource.h"
#include "Runtime/Mono/MonoBehaviour.h"
#include "Runtime/Mono/MonoIncludes.h"
#include "Runtime/Scripting/ScriptingUtility.h"
#include "Runtime/Mono/MonoScriptCache.h"
#include "Runtime/Mono/MonoScopedThreadAttach.h"
#include "Runtime/Threads/Mutex.h"
#include "Runtime/Threads/Thread.h"
#include "Runtime/Profiler/TimeHelper.h"
#if UNITY_EDITOR
#include "Editor/Src/AssetPipeline/MonoCompile.h"
#endif
#include "Runtime/Scripting/Scripting.h"
AudioCustomFilter::AudioCustomFilter(MonoBehaviour* behaviour) :
m_behaviour(behaviour),
#if ENABLE_MONO
monoDomain(NULL),
#endif
m_DSP(NULL),
m_InScriptCallback(false),
m_playingSource(NULL)
#if UNITY_EDITOR
,
processTime(0.0),
channelCount(0)
#endif
{
Init();
}
AudioCustomFilter::~AudioCustomFilter()
{
Cleanup();
}
void AudioCustomFilter::Init()
{
// setup dsp/callbacks
if (!m_DSP)
{
FMOD_DSP_DESCRIPTION dspdesc;
FMOD_RESULT result;
memset(&dspdesc, 0, sizeof(FMOD_DSP_DESCRIPTION));
#if UNITY_EDITOR
strcpy(dspdesc.name, m_behaviour->GetScriptClassName().c_str());
#endif
dspdesc.channels = 0; // 0 = whatever comes in, else specify.
dspdesc.read = AudioCustomFilter::readCallback;
dspdesc.userdata = this;
result = GetAudioManager().GetFMODSystem()->createDSP(&dspdesc, &m_DSP);
FMOD_ASSERT(result);
m_DSP->setBypass(true);
}
#if ENABLE_MONO
monoDomain = mono_domain_get();
#endif
}
void AudioCustomFilter::Cleanup()
{
if (m_DSP)
{
// is this a playing dsp?
if (m_playingSource)
{
// Doesn't matter whether argument is true or false, since sources playing DSP's don't play one-shots at the same time.
m_playingSource->Stop(true);
}
FMOD_RESULT result = m_DSP->release();
FMOD_ASSERT(result);
m_DSP = NULL;
}
}
FMOD::DSP* AudioCustomFilter::GetOrCreateDSP()
{
if (!m_DSP)
Init();
return m_DSP;
}
FMOD::DSP* AudioCustomFilter::GetDSP()
{
return m_DSP;
}
void AudioCustomFilter::WaitForScriptCallback()
{
while (m_InScriptCallback)
Thread::Sleep(0.01); // wait 10ms
}
#if UNITY_EDITOR
float AudioCustomFilter::GetMaxIn(short channel) const
{
if (m_DSP)
{
bool active, bypass;
m_DSP->getActive(&active);
m_DSP->getBypass(&bypass);
return active&&!bypass?maxIn[channel]:0.0f;
}
else return 0.0f;
}
float AudioCustomFilter::GetMaxOut(short channel) const
{
if (m_DSP)
{
bool active, bypass;
m_DSP->getActive(&active);
m_DSP->getBypass(&bypass);
return active&&!bypass?maxOut[channel]:0.0f;
}
else return 0.0f;
}
#endif // UNITY_EDITOR
FMOD_RESULT F_CALLBACK AudioCustomFilter::readCallback(FMOD_DSP_STATE *dsp_state, float *inbuffer, float *outbuffer, unsigned int length, int inchannels, int outchannels)
{
#if SUPPORT_MONO_THREADS
#if UNITY_EDITOR
if (IsCompiling())
return FMOD_OK;
#endif
AudioCustomFilter* filter;
FMOD_RESULT result;
FMOD::DSP* fmod_dsp = (FMOD::DSP*)dsp_state->instance;
result = fmod_dsp->getUserData((void**)&filter);
Assert (filter);
#if UNITY_EDITOR
ABSOLUTE_TIME start_time = START_TIME;
#endif
if (!filter->m_behaviour->GetEnabled())
return FMOD_OK;
filter->m_InScriptCallback = true;
{
ScopedThreadAttach attach(filter->monoDomain);
// reuse mono array
MonoArray* array = NULL;
GetAudioManager().GetScriptBufferManager().GetDSPFilterArray(length * inchannels, array);
Assert(array);
memcpy( &GetMonoArrayElement<float>( array, 0 ), inbuffer, length * 4 * inchannels );
ScriptingObjectPtr instance = Scripting::ScriptingWrapperFor( filter->m_behaviour );
if (instance)
{
MonoMethod* method = filter->m_behaviour->GetMethod(MonoScriptCache::kAudioFilterRead)->monoMethod;
void* args[] = { array, &inchannels };
MonoException* exception;
mono_runtime_invoke( method, instance, args, &exception );
if (exception)
{
// handle
Scripting::LogException(exception, Scripting::GetInstanceIDFromScriptingWrapper(instance));
}
else
{
memcpy(outbuffer, &GetMonoArrayElement<float>( array, 0 ), length * 4 * inchannels);
}
}
}
filter->m_InScriptCallback = false;
#if UNITY_EDITOR
filter->processTime = GetProfileTime(ELAPSED_TIME(start_time));
filter->channelCount = inchannels;
for (int c = 0; c < inchannels && c < MAX_CHANNELS; c++)
filter->maxOut[c] = filter->maxIn[c] = -1.0f;
for (int i = 0;i < length; i += inchannels)
for (int c = 0; c < inchannels && c < MAX_CHANNELS; c++)
{
if (filter->maxIn[c]<inbuffer[i+c]) filter->maxIn[c] = inbuffer[i+c];
if (filter->maxOut[c]<outbuffer[i+c]) filter->maxOut[c] = outbuffer[i+c];
}
#endif
#endif // SUPPORT_THREADS
return FMOD_OK;
}
#endif // ENABLE_AUDIO_FMOD
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