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75 lines
3.3 KiB
C++
75 lines
3.3 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 __TILE_SELECTOR_H__
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#define __TILE_SELECTOR_H__
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#include "gdal_priv.h"
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#include <modules/globebrowsing/chunk/chunkindex.h>
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#include <modules/globebrowsing/tile/tileprovider.h>
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#include <modules/globebrowsing/tile/tileprovidermanager.h>
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#include <vector>
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namespace openspace {
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struct TileUvTransform {
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glm::vec2 uvOffset;
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glm::vec2 uvScale;
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};
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struct TileAndTransform {
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Tile tile;
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TileUvTransform uvTransform;
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};
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class TileSelector {
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public:
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static TileAndTransform getHighestResolutionTile(TileProvider* tileProvider, ChunkIndex chunkIndex, int parents = 0);
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static TileAndTransform getHighestResolutionTile(const TileProviderGroup& tileProviderGroup, ChunkIndex chunkIndex);
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static std::vector<TileAndTransform> getTilesSortedByHighestResolution(const TileProviderGroup&, const ChunkIndex& chunkIndex);
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struct CompareResolution {
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bool operator() (const TileAndTransform& a, const TileAndTransform& b);
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};
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static const CompareResolution HIGHEST_RES;
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private:
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static void ascendToParent(ChunkIndex& chunkIndex, TileUvTransform& uv);
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};
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} // namespace openspace
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#endif // __TILE_SELECTOR_H__
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