Differential D11791 Diff 40163 source/blender/compositor/operations/COM_SunBeamsOperation.cc

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source/blender/compositor/operations/COM_SunBeamsOperation.cc

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	/**			/**
	* Defines a line accumulator for a specific sector,			* Defines a line accumulator for a specific sector,
	* given by the four matrix entries that rotate from buffer space into the sector			* given by the four matrix entries that rotate from buffer space into the sector
	*			*
	* (x,y) is used to designate buffer space coordinates			* (x,y) is used to designate buffer space coordinates
	* (u,v) is used to designate sector space coordinates			* (u,v) is used to designate sector space coordinates
	*			*
	* For a target point (x,y) the sector should be chosen such that			* For a target point (x,y) the sector should be chosen such that
	* ``u >= v >= 0``			* `u >= v >= 0`
	* This removes the need to handle all sorts of special cases.			* This removes the need to handle all sorts of special cases.
	*			*
	* Template parameters:			* Template parameters:
	* fxu : buffer increment in x for sector u+1			* \param fxu: buffer increment in x for sector `u + 1`.
	* fxv : buffer increment in x for sector v+1			* \param fxv: buffer increment in x for sector `v + 1`.
	* fyu : buffer increment in y for sector u+1			* \param fyu: buffer increment in y for sector `u + 1`.
	* fyv : buffer increment in y for sector v+1			* \param fyv: buffer increment in y for sector `v + 1`.
	*/			*/
	template<int fxu, int fxv, int fyu, int fyv> struct BufferLineAccumulator {			template<int fxu, int fxv, int fyu, int fyv> struct BufferLineAccumulator {

	/* utility functions implementing the matrix transform to/from sector space */			/* utility functions implementing the matrix transform to/from sector space */

	static inline void buffer_to_sector(const float source[2], int x, int y, int &u, int &v)			static inline void buffer_to_sector(const float source[2], int x, int y, int &u, int &v)
	{			{
	int x0 = (int)source[0];			int x0 = (int)source[0];
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