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103 lines
4.1 KiB
C++
103 lines
4.1 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2025 *
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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___BRICKMANAGER___H__
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#define __OPENSPACE_MODULE_MULTIRESVOLUME___BRICKMANAGER___H__
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#include <modules/multiresvolume/rendering/tsp.h>
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#include <vector>
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namespace ghoul::opengl { class Texture; }
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namespace openspace {
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class BrickManager {
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public:
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enum BufferIndex { EVEN = 0, ODD = 1 };
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explicit BrickManager(TSP* tsp);
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~BrickManager();
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bool readHeader();
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bool initialize();
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bool buildBrickList(BufferIndex bufferIndex, std::vector<int>& brickRequest);
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bool fillVolume(float* in, float* out, unsigned int x, unsigned int y,
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unsigned int z);
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bool diskToPBO(BufferIndex pboIndex);
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bool pboToAtlas(BufferIndex pboIndex);
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ghoul::opengl::Texture* textureAtlas();
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unsigned int pbo(BufferIndex pboIndex) const;
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const std::vector<int>& brickList(BufferIndex index) const;
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private:
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void incrementCoordinates();
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unsigned int linearCoordinates(int x, int y, int z);
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void coordinatesFromLinear(int idx, int& x, int& y, int& z);
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TSP* _tsp = nullptr;
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TSP::Header _header;
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unsigned int _numBricks = 0;
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unsigned int _brickDim = 0;
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unsigned int _paddedBrickDim = 0;
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unsigned int _atlasDim = 0;
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const unsigned int _paddingWidth = 1;
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unsigned int _numBrickVals = 0;
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unsigned int _numBricksFrame = 0;
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unsigned int _numBricksTree = 0;
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unsigned int _brickSize = 0;
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unsigned int _volumeSize = 0;
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unsigned int _numValsTot = 0;
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// Texture coordinates to be assigned
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int _xCoord = 0;
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int _yCoord = 0;
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int _zCoord = 0;
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// Texture where the actual atlas is kept
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ghoul::opengl::Texture* _textureAtlas = nullptr;
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std::vector<std::vector<int>> _brickLists;
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bool _hasReadHeader = false;
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bool _atlasInitialized = false;
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// PBOs
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unsigned int _pboHandle[2];
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// Caching, one for each PBO
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std::vector<std::vector<int>> _bricksInPBO;
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std::vector<std::vector<bool>> _usedCoords;
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};
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} // namespace openspace
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#endif // __OPENSPACE_MODULE_MULTIRESVOLUME___BRICKMANAGER___H__
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