mirror of
https://github.com/OpenSpace/OpenSpace.git
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Alexander Bock
94 lines
4.3 KiB
C++
94 lines
4.3 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2018 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___DEFAULT_TILE_PROVIDER___H__
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#define __OPENSPACE_MODULE_GLOBEBROWSING___DEFAULT_TILE_PROVIDER___H__
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#include <modules/globebrowsing/tile/tileprovider/tileprovider.h>
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#include <modules/globebrowsing/cache/memoryawaretilecache.h>
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#include <openspace/properties/stringproperty.h>
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#include <openspace/properties/numericalproperty.h>
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namespace openspace { class PixelBuffer; }
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namespace openspace::globebrowsing {
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class AsyncTileDataProvider;
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struct RawTile;
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} // namespace openspace::globebrowsing
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namespace openspace::globebrowsing::tileprovider {
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/**
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* Provides tiles loaded by <code>AsyncTileDataProvider</code> and
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* caches them in memory using LRU caching
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*/
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class DefaultTileProvider : public TileProvider {
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public:
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DefaultTileProvider(const ghoul::Dictionary& dictionary);
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DefaultTileProvider(std::shared_ptr<AsyncTileDataProvider> tileReader);
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virtual ~DefaultTileProvider() override;
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/**
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* \returns a Tile with status OK iff it exists in in-memory
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* cache. If not, it may enqueue some IO operations on a
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* separate thread.
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*/
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virtual Tile getTile(const TileIndex& tileIndex) override;
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virtual Tile::Status getTileStatus(const TileIndex& tileIndex) override;
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virtual TileDepthTransform depthTransform() override;
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virtual void update() override;
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virtual void reset() override;
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virtual int maxLevel() override;
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virtual float noDataValueAsFloat() override;
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private:
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/**
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* Collects all asynchronously downloaded <code>RawTile</code>
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* and uses <code>createTile</code> to create <code>Tile</code>s,
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* which are put in the LRU cache - potentially pushing out outdated
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* Tiles.
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*/
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void initTexturesFromLoadedData();
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void initAsyncTileDataReader(TileTextureInitData initData);
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std::shared_ptr<AsyncTileDataProvider> _asyncTextureDataProvider;
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cache::MemoryAwareTileCache* _tileCache;
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properties::StringProperty _filePath;
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properties::IntProperty _tilePixelSize;
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layergroupid::GroupID _layerGroupID;
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int _preCacheLevel;
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bool _performPreProcessing;
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bool _padTiles;
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};
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} // namespace openspace::globebrowsing::tileprovider
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#endif // __OPENSPACE_MODULE_GLOBEBROWSING___DEFAULT_TILE_PROVIDER___H__
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