mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-05-24 05:18:59 -05:00
Kalle Bladin
113 lines
4.6 KiB
C++
113 lines
4.6 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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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 __CACHING_TILE_PROVIDER_H__
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#define __CACHING_TILE_PROVIDER_H__
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#include <gdal_priv.h>
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#include <ghoul/logging/logmanager.h>
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#include <ghoul/filesystem/filesystem.h> // absPath
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#include <ghoul/opengl/texture.h>
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#include <ghoul/io/texture/texturereader.h>
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#include <modules/globebrowsing/tile/tileprovider/tileprovider.h>
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#include <modules/globebrowsing/tile/asynctilereader.h>
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#include <modules/globebrowsing/other/lrucache.h>
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//////////////////////////////////////////////////////////////////////////////////////////
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// TILE PROVIDER //
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//////////////////////////////////////////////////////////////////////////////////////////
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namespace openspace {
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/**
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Provides tiles through GDAL datasets which can be defined with xml files
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for example for wms.
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*/
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class CachingTileProvider : public TileProvider {
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public:
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CachingTileProvider(
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std::shared_ptr<AsyncTileDataProvider> tileReader,
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std::shared_ptr<TileCache> tileCache,
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int framesUntilFlushRequestQueue);
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virtual ~CachingTileProvider();
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virtual Tile getTile(const ChunkIndex& chunkIndex);
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virtual Tile getDefaultTile();
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virtual Tile::Status getTileStatus(const ChunkIndex& index);
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virtual TileDepthTransform depthTransform();
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virtual void update();
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virtual void reset();
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virtual int maxLevel();
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private:
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//////////////////////////////////////////////////////////////////////////////////
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// Helper functions //
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//////////////////////////////////////////////////////////////////////////////////
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Tile getOrStartFetchingTile(ChunkIndex chunkIndex);
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/**
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Creates an OpenGL texture and pushes the data to the GPU.
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*/
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Tile createTile(std::shared_ptr<TileIOResult> res);
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void clearRequestQueue();
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void initTexturesFromLoadedData();
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//////////////////////////////////////////////////////////////////////////////////
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// Member variables //
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//////////////////////////////////////////////////////////////////////////////////
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std::shared_ptr<TileCache> _tileCache;
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Tile _defaultTile;
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int _framesSinceLastRequestFlush;
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int _framesUntilRequestFlush;
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std::shared_ptr<AsyncTileDataProvider> _asyncTextureDataProvider;
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};
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} // namespace openspace
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#endif // __CACHING_TILE_PROVIDER_H__
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