Torque3D/Engine/source/sfx/null/sfxNullDevice.cpp

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#include "sfx/null/sfxNullDevice.h"
#include "sfx/null/sfxNullBuffer.h"
#include "sfx/sfxInternal.h"

class SFXNULLRegisterProvider
{
public:
   SFXNULLRegisterProvider()
   {
      SFXSystem::getRegisterProviderSignal().notify(&SFXNullDevice::enumerateProviders);
   }
};

static SFXNULLRegisterProvider pSFXNULLRegisterProvider;


SFXProvider::CreateProviderInstanceDelegate SFXNullDevice::mCreateDeviceInstance(SFXNullDevice::createInstance);

SFXDevice* SFXNullDevice::createInstance(U32 providerIndex)
{
   SFXNullDevice* dev = new SFXNullDevice(providerIndex);
   return dev;
}


SFXNullDevice::SFXNullDevice( U32 providerIndex )
{
   mMaxBuffers = 8;
}

SFXNullDevice::~SFXNullDevice()
{
}

SFXBuffer* SFXNullDevice::createBuffer( const ThreadSafeRef< SFXStream >& stream, SFXDescription* description )
{
   SFXNullBuffer* buffer = new SFXNullBuffer( stream, description );
   _addBuffer( buffer );

   return buffer;
}

SFXVoice* SFXNullDevice::createVoice( bool is3D, SFXBuffer *buffer )
{
   // Don't bother going any further if we've 
   // exceeded the maximum voices.
   if ( mVoices.size() >= mMaxBuffers )
      return NULL;

   AssertFatal( buffer, "SFXNullDevice::createVoice() - Got null buffer!" );

   SFXNullBuffer* nullBuffer = dynamic_cast<SFXNullBuffer*>( buffer );
   AssertFatal( nullBuffer, "SFXNullDevice::createVoice() - Got bad buffer!" );

   SFXNullVoice* voice = new SFXNullVoice( nullBuffer );

   _addVoice( voice );
	return voice;
}

void SFXNullDevice::enumerateProviders(Vector<SFXProvider*>& providerList)
{
   SFXProvider* toAdd = new SFXProvider;
   toAdd->mName = String::ToString("SFX Null Device");
   toAdd->mIndex = providerList.size();
   toAdd->mDeviceType = Output;
   toAdd->mType = NullProvider;
   toAdd->mCreateDeviceInstanceDelegate = mCreateDeviceInstance;
   providerList.push_back(toAdd);
}

void SFXNullDevice::update()
{
   // Do nothing.  Prevent SFXDevice from running
   // its thing.
}