ossimRefPtr<ossimImageData> ossimMaskFilter::executeMaskFilter(ossimRefPtr<ossimImageData> imageSourceData,
ossimRefPtr<ossimImageData> maskSourceData)
{
if(!theTile)
{
theTile = (ossimImageData*)imageSourceData->dup();
if(!theTile->getBuf())
{
theTile->initialize();
}
}
else
{
ossim_uint32 tw = theTile->getWidth();
ossim_uint32 th = theTile->getHeight();
ossim_uint32 dw = imageSourceData->getWidth();
ossim_uint32 dh = imageSourceData->getHeight();
theTile->setWidthHeight(imageSourceData->getWidth(),
imageSourceData->getHeight());
theTile->setOrigin(imageSourceData->getOrigin());
if((tw*th) != (dw*dh))
{
theTile->initialize();
}
theTile->setDataObjectStatus(imageSourceData->getDataObjectStatus());
}
theTile->loadTile(imageSourceData.get());
theTile->setDataObjectStatus(imageSourceData->getDataObjectStatus());
switch(theMaskType)
{
case OSSIM_MASK_TYPE_SELECT:
{
return executeMaskFilterSelect(theTile,
maskSourceData);
}
case OSSIM_MASK_TYPE_INVERT:
{
return executeMaskFilterInvertSelect(theTile,
maskSourceData);
}
case OSSIM_MASK_TYPE_WEIGHTED:
{
return executeMaskFilterWeighted(theTile,
maskSourceData);
}
}
return imageSourceData;
}
ossimRefPtr<ossimImageData> ossimFixedTileCache::addTile(ossimRefPtr<ossimImageData> imageData,
bool duplicateData)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(theMutex);
ossimRefPtr<ossimImageData> result = NULL;
if(!imageData.valid())
{
return result;
}
if(!imageData->getBuf())
{
return result;
}
ossim_int32 id = computeId(imageData->getOrigin());
if(id < 0)
{
return result;
}
std::map<ossim_int32, ossimFixedTileCacheInfo>::iterator tileIter =
theTileMap.find(id);
if(tileIter==theTileMap.end())
{
if(duplicateData)
{
result = (ossimImageData*)imageData->dup();
}
else
{
result = imageData;
}
ossimFixedTileCacheInfo cacheInfo(result, id);
theCacheSize += imageData->getDataSizeInBytes();
theTileMap.insert(make_pair(id, cacheInfo));
if(theUseLruFlag)
{
theLruQueue.push_back(id);
}
}
return result;
}