IPoolDataPtr MemoryPool::allocate( const std::size_t size )
{
// Try to reuse a buffer available in the MemoryPool
IPoolData* pData = getOneAvailableData( size );
if( pData != NULL )
{
TUTTLE_LOG_TRACE("[Memory Pool] Reuse a buffer available in the MemoryPool");
pData->setSize( size );
return pData;
}
// Try to remove unused element in MemoryCache, and reuse the buffer available in the MemoryPool
memory::IMemoryCache& memoryCache = core().getMemoryCache();
CACHE_ELEMENT unusedCacheElement = memoryCache.getUnusedWithSize( size );
if( unusedCacheElement.get() != NULL )
{
TUTTLE_LOG_TRACE("[Memory Pool] Pop element in the MemoryCache from " << unusedCacheElement->getFullName() << " of size " << size);
memoryCache.remove( unusedCacheElement );
pData = getOneAvailableData( size );
if( pData != NULL )
{
TUTTLE_LOG_TRACE("[Memory Pool] Reuse a buffer available in the MemoryPool");
pData->setSize( size );
return pData;
}
}
// Try to allocate a new buffer in MemoryPool
std::size_t availableSize = getAvailableMemorySize();
if( size > availableSize )
{
// Try to release elements from the MemoryCache (make them available to the MemoryPool)
TUTTLE_LOG_TRACE("[Memory Pool] Release elements from the MemoryCache");
memoryCache.clearUnused();
availableSize = getAvailableMemorySize();
if( size > availableSize )
{
// Release elements from the MemoryPool (make them available to the OS)
TUTTLE_LOG_TRACE("[Memory Pool] Release elements from the MemoryPool");
clear();
}
availableSize = getAvailableMemorySize();
if( size > availableSize )
{
std::stringstream s;
s << "[Memory Pool] can't allocate size:" << size << " because memory available is equal to " << availableSize << " bytes";
BOOST_THROW_EXCEPTION( std::length_error( s.str() ) );
}
}
// Allocate a new buffer in MemoryPool
TUTTLE_TLOG( TUTTLE_TRACE, "[Memory Pool] allocate " << size << " bytes" );
return new PoolData( *this, size );
}
bool InteractScene::penMotion( const OFX::PenArgs& args )
{
if( !_mouseDown )
return false;
if( _creatingSelection )
{
// create selection
TUTTLE_TLOG( TUTTLE_TRACE, "create a selection" );
_selectionRect.x2 = args.penPosition.x;
_selectionRect.y2 = args.penPosition.y;
_hasSelection = false;
IsActiveFunctorVector::iterator itActive = _isActive.begin();
for( InteractObjectsVector::iterator it = _objects.begin(), itEnd = _objects.end();
it != itEnd;
++it, ++itActive )
{
if( ! itActive->active() )
continue;
if( it->isIn( _selectionRect ) )
{
it->setSelected(true);
_hasSelection = true;
}
else
{
it->setSelected(false);
}
}
return true;
}
if( _selected.size() == 0 )
{
TUTTLE_LOG_INFOS;
return false;
}
const Point2 penPosition = ofxToGil( args.penPosition );
switch( _motionType._mode )
{
case eMotionTranslate:
{
translate( penPosition - _beginPenPosition );
break;
}
case eMotionRotate:
{
if( _manipulator )
{
rotate( _manipulator->getPosition(), penPosition, penPosition - _beginPenPosition );
}
break;
}
case eMotionScale:
{
if( _manipulator )
scale( _manipulator->getPosition(), penPosition - _beginPenPosition );
break;
}
case eMotionNone:
{
TUTTLE_LOG_INFOS;
break;
}
}
return true;
}