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112 lines
4.2 KiB
C++
112 lines
4.2 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 __CHUNK_H__
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#define __CHUNK_H__
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#include <glm/glm.hpp>
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#include <vector>
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#include <memory>
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#include <ostream>
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#include <modules/globebrowsing/chunk/culling.h>
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#include <modules/globebrowsing/chunk/chunkindex.h>
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#include <modules/globebrowsing/geometry/geodetic2.h>
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#include <modules/globebrowsing/geometry/angle.h>
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namespace openspace {
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class ChunkedLodGlobe;
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class Chunk {
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public:
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struct BoundingHeights {
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float min, max;
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bool available;
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};
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enum class Status {
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DO_NOTHING,
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WANT_MERGE,
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WANT_SPLIT,
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};
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Chunk(ChunkedLodGlobe* owner, const ChunkIndex& chunkIndex, bool initVisible = true);
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/// Updates chunk internally and returns a desired level
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Status update(const RenderData& data);
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void render(const RenderData& data) const;
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const GeodeticPatch& surfacePatch() const;
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ChunkedLodGlobe* const owner() const;
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const ChunkIndex index() const;
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bool isVisible() const;
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BoundingHeights getBoundingHeights() const;
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void setIndex(const ChunkIndex& index);
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void setOwner(ChunkedLodGlobe* newOwner);
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private:
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ChunkedLodGlobe* _owner;
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ChunkIndex _index;
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bool _isVisible;
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GeodeticPatch _surfacePatch;
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};
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class DesiredChunkLevelEvaluator {
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public:
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virtual int getDesiredLevel(const Chunk& chunk, const RenderData& data) const = 0;
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static const int UNKNOWN_DESIRED_LEVEL = -1;
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};
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class EvaluateChunkLevelByDistance : public DesiredChunkLevelEvaluator {
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public:
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virtual int getDesiredLevel(const Chunk& chunk, const RenderData& data) const;
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};
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class EvaluateChunkLevelByProjectedArea : public DesiredChunkLevelEvaluator {
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public:
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virtual int getDesiredLevel(const Chunk& chunk, const RenderData& data) const;
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};
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class EvaluateChunkLevelByAvailableTileData : public DesiredChunkLevelEvaluator {
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public:
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virtual int getDesiredLevel(const Chunk& chunk, const RenderData& data) const;
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};
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}
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#endif // __CHUNK_H__
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