//**************************************************************************************************
void ossimScaleFilter::setFilterType(ossimScaleFilterType minifyFilterType,
ossimScaleFilterType magnifyFilterType)
{
if(m_MinifyFilter)
{
delete m_MinifyFilter;
m_MinifyFilter = NULL;
}
if(m_MagnifyFilter)
{
delete m_MagnifyFilter;
m_MagnifyFilter = NULL;
}
m_MinifyFilterType = minifyFilterType;
m_MagnifyFilterType = magnifyFilterType;
m_MinifyFilter = createNewFilter(minifyFilterType, m_MinifyFilterType);
m_MagnifyFilter = createNewFilter(magnifyFilterType, m_MagnifyFilterType);
}
// Main execution loop.
// Capture from camera, filter image data, save filered data.
// Note*: wait conditions are used to ensure that the previous image
// has been rendered while allowing for continued operation.
void WorkerThread::run()
{
createInitialFilter();
while( 1 )
{
// Throttling
while( !g_throttleTimerFlag ){}
g_throttleTimerFlag = 0;
// Capture image data
_camera->capture();
float *data = _camera->frameData();
// Need a new filter?
_new_filter_mutex.lock();
if( _should_create_new_filter )
{
createNewFilter();
}
_new_filter_mutex.unlock();
// Gabor filter
gaborFilter( data );
// Make sure the previous image has been rendered before overwriting it
_image_mutex.lock();
if( !_is_image_processed )
{
_image_processed.wait(&_image_mutex);
}
// Copy image data so the thread continues capturing and filtering
memcpy( _full_image, data, sizeof(float) * _original_image_width * _original_image_height * 2 );
_is_image_processed = false;
emit filterComplete();
_image_mutex.unlock();
if( _should_terminate )
{
break;
}
}
// Free GPU resources
cudaFree(_gabor_data);
cudaFree(_gpu_image_0);
cudaFree(_gpu_image_1);
cufftDestroy(_fft_plan);
}