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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup freestyle
* \brief Class to define a cell grid surrounding the bounding box of the scene
*/
#include "Grid.h"
namespace Freestyle {
/** Class to define a regular grid used for ray casting computations
* We don't use a hash-table here. The grid is explicitly stored for faster computations.
* However, this might result in significant increase in memory usage
* (compared to the regular grid).
*/
class FastGrid : public Grid {
public:
FastGrid() : Grid()
{
_cells = NULL;
_cells_size = 0;
}
virtual ~FastGrid()
{
clear();
}
/**
* clears the grid
* Deletes all the cells, clears the hash-table, resets size, size of cell, number of cells.
*/
virtual void clear();
/** Sets the different parameters of the grid
* orig
* The grid origin
* size
* The grid's dimensions
* nb
* The number of cells of the grid
*/
virtual void configure(const Vec3r &orig, const Vec3r &size, unsigned nb);
/** returns the cell whose coordinates are passed as argument */
Cell *getCell(const Vec3u &p);
/** Fills the case p with the cell iCell */
virtual void fillCell(const Vec3u &p, Cell &cell);
protected:
Cell **_cells;
unsigned _cells_size;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:FastGrid")
#endif
};
} /* namespace Freestyle */
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