mirror of
https://github.com/OpenSpace/OpenSpace.git
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147 lines
5.3 KiB
C++
147 lines
5.3 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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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 __OPENSPACE_MODULE_MULTIRESVOLUME___TSP___H__
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#define __OPENSPACE_MODULE_MULTIRESVOLUME___TSP___H__
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#include <string>
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#include <vector>
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#include <list>
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#include <iostream>
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#include <fstream>
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#include <ghoul/opengl/ghoul_gl.h>
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namespace openspace {
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class TSP {
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public:
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struct Header {
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unsigned int gridType_;
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unsigned int numOrigTimesteps_;
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unsigned int numTimesteps_;
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unsigned int xBrickDim_;
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unsigned int yBrickDim_;
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unsigned int zBrickDim_;
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unsigned int xNumBricks_;
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unsigned int yNumBricks_;
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unsigned int zNumBricks_;
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};
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enum NodeData {
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BRICK_INDEX = 0,
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CHILD_INDEX,
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SPATIAL_ERR,
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TEMPORAL_ERR,
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NUM_DATA
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};
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TSP(const std::string& filename);
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~TSP();
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// load performs readHeader, readCache, writeCache and construct
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// in the correct sequence
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bool load();
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bool readHeader();
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bool readCache();
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bool writeCache();
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bool construct();
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bool initalizeSSO();
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const Header& header() const;
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static long long dataPosition();
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std::ifstream& file();
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unsigned int numTotalNodes() const;
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unsigned int numValuesPerNode() const;
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unsigned int numBSTNodes() const;
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unsigned int numBSTLevels() const;
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unsigned int numOTNodes() const;
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unsigned int numOTLevels() const;
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unsigned int brickDim() const;
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unsigned int paddedBrickDim() const;
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unsigned int numBricksPerAxis() const;
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GLuint ssbo() const;
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bool calculateSpatialError();
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bool calculateTemporalError();
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float getSpatialError(unsigned int _brickIndex);
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float getTemporalError(unsigned int _brickIndex);
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unsigned int getFirstOctreeChild(unsigned int _brickIndex);
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unsigned int getBstLeft(unsigned int _brickIndex);
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unsigned int getBstRight(unsigned int _brickIndex);
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bool isBstLeaf(unsigned int _brickIndex);
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bool isOctreeLeaf(unsigned int _brickIndex);
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private:
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// Returns a list of the octree leaf nodes that a given input
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// brick covers. If the input is already a leaf, the list will
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// only contain that one index.
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std::list<unsigned int> CoveredLeafBricks(unsigned int _brickIndex);
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// Returns a list of the BST leaf nodes that a given input brick
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// covers (at the same spatial subdivision level).
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std::list<unsigned int> CoveredBSTLeafBricks(unsigned int _brickIndex);
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// Return a list of eight children brick incices given a brick index
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std::list<unsigned int> ChildBricks(unsigned int _brickIndex);
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std::string _filename;
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std::ifstream _file;
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std::streampos _dataOffset;
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// Holds the actual structure
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std::vector<int> data_;
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GLuint _dataSSBO;
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// Data from file
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Header _header;
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// Additional metadata
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unsigned int paddedBrickDim_;
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unsigned int numTotalNodes_;
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unsigned int numBSTLevels_;
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unsigned int numBSTNodes_;
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unsigned int numOTLevels_;
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unsigned int numOTNodes_;
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const unsigned int paddingWidth_ = 1;
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// Error stats
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float minSpatialError_;
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float maxSpatialError_;
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float medianSpatialError_;
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float minTemporalError_;
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float maxTemporalError_;
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float medianTemporalError_;
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}; // class TSP
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} // namespace openspace
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#endif // __OPENSPACE_MODULE_MULTIRESVOLUME___TSP___H__
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