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https://github.com/OpenSpace/OpenSpace.git
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121 lines
4.0 KiB
C++
121 lines
4.0 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 <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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namespace openspace {
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struct TileLoadJob : public Job<TileIOResult> {
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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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_uninitedTexture = _tileDataset->readTileData(_chunkIndex);
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}
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virtual std::shared_ptr<TileIOResult> product() {
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return _uninitedTexture;
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}
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private:
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ChunkIndex _chunkIndex;
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std::shared_ptr<TileDataset> _tileDataset;
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std::shared_ptr<TileIOResult> _uninitedTexture;
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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 enqueueTextureData(const ChunkIndex& chunkIndex);
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bool hasLoadedTextureData() const;
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std::shared_ptr<TileIOResult> nextTileIOResult();
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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<HashKey, 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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