mirror of
https://github.com/OpenSpace/OpenSpace.git
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158 lines
4.9 KiB
C++
158 lines
4.9 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 __ASYNC_TILE_DATA_PROVIDER_H__
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#define __ASYNC_TILE_DATA_PROVIDER_H__
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//#include <modules/globebrowsing/other/tileprovider.h>
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#include <ghoul/opengl/texture.h>
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#include <modules/globebrowsing/geometry/geodetic2.h>
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#include <modules/globebrowsing/other/concurrentjobmanager.h>
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#include <modules/globebrowsing/other/threadpool.h>
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//#include <ghoul/misc/threadpool.h>
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#include <modules/globebrowsing/tile/tiledataset.h>
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#include <memory>
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#include <queue>
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#include <unordered_map>
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#include <sstream>
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namespace openspace {
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struct LoadJob : public Job<TileIOResult> {
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virtual void execute() = 0;
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virtual std::shared_ptr<TileIOResult> product() = 0;
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};
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struct TileLoadJob : LoadJob {
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TileLoadJob(std::shared_ptr<TileDataset> textureDataProvider,
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const ChunkIndex& chunkIndex)
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: _tileDataset(textureDataProvider)
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, _chunkIndex(chunkIndex)
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{
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}
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virtual ~TileLoadJob() { }
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virtual void execute();
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virtual std::shared_ptr<TileIOResult> product() {
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return _tileIOResult;
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}
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protected:
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ChunkIndex _chunkIndex;
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std::shared_ptr<TileDataset> _tileDataset;
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std::shared_ptr<TileIOResult> _tileIOResult;
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};
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class TileDiskCache;
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struct DiskCachedTileLoadJob : public TileLoadJob {
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enum CacheMode {
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Disabled,
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ReadOnly,
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ReadAndWrite,
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WriteOnly,
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CacheHitsOnly,
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};
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DiskCachedTileLoadJob(std::shared_ptr<TileDataset> textureDataProvider,
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const ChunkIndex& chunkIndex, std::shared_ptr<TileDiskCache> tdc,
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const std::string cacheMode);
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DiskCachedTileLoadJob(std::shared_ptr<TileDataset> textureDataProvider,
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const ChunkIndex& chunkIndex, std::shared_ptr<TileDiskCache> tdc,
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CacheMode cacheMode = CacheMode::ReadOnly);
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virtual void execute();
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protected:
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std::shared_ptr<TileDiskCache> _tileDiskCache;
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CacheMode _mode;
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};
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class AsyncTileDataProvider {
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public:
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AsyncTileDataProvider(std::shared_ptr<TileDataset> textureDataProvider,
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std::shared_ptr<ThreadPool> pool);
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~AsyncTileDataProvider();
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bool enqueueTileIO(const ChunkIndex& chunkIndex);
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std::vector<std::shared_ptr<TileIOResult>> getTileIOResults();
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void reset();
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void clearRequestQueue();
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std::shared_ptr<TileDataset> getTextureDataProvider() const;
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protected:
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virtual bool satisfiesEnqueueCriteria(const ChunkIndex&) const;
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private:
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std::shared_ptr<TileDataset> _tileDataset;
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ConcurrentJobManager<TileIOResult> _concurrentJobManager;
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std::unordered_map<ChunkHashKey, ChunkIndex> _enqueuedTileRequests;
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};
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} // namespace openspace
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#endif // __ASYNC_TILE_DATA_PROVIDER_H__
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