/** @brief called to process everything */
virtual void process(void)
{
// If _dstImg was set, check that the _renderWindow is lying into dstBounds
if (_dstImg) {
const OfxRectI& dstBounds = _dstImg->getBounds();
// is the renderWindow within dstBounds ?
assert(dstBounds.x1 <= _renderWindow.x1 && _renderWindow.x2 <= dstBounds.x2 &&
dstBounds.y1 <= _renderWindow.y1 && _renderWindow.y2 <= dstBounds.y2);
// exit gracefully in case of error
if (!(dstBounds.x1 <= _renderWindow.x1 && _renderWindow.x2 <= dstBounds.x2 &&
dstBounds.y1 <= _renderWindow.y1 && _renderWindow.y2 <= dstBounds.y2) ||
(_renderWindow.x1 >= _renderWindow.x2) ||
(_renderWindow.y1 >= _renderWindow.y2)) {
return;
}
}
// call the pre MP pass
preProcess();
// make sure there are at least 4096 pixels per CPU and at least 1 line par CPU
unsigned int nCPUs = ((std::min)(_renderWindow.x2 - _renderWindow.x1, 4096) *
(_renderWindow.y2 - _renderWindow.y1)) / 4096;
// make sure the number of CPUs is valid (and use at least 1 CPU)
nCPUs = std::max(1u, (std::min)(nCPUs, OFX::MultiThread::getNumCPUs()));
// call the base multi threading code, should put a pre & post thread calls in too
multiThread(nCPUs);
// call the post MP pass
postProcess();
}
/** @brief called to process everything */
virtual void process()
{
// is it OK ?
if( _renderArgs.renderWindow.x2 - _renderArgs.renderWindow.x1 == 0 ||
_renderArgs.renderWindow.y2 - _renderArgs.renderWindow.y1 == 0 )
{
BOOST_THROW_EXCEPTION( exception::ImageFormat() << exception::user( "RenderWindow empty !" ) );
}
// call the pre MP pass
preProcess();
// call the base multi threading code, should put a pre & post thread calls in too
multiThread( _nbThreads );
// call the post MP pass
postProcess();
}
