Differential D19554 Diff 53244 plugins/generators/simplexnoise/c-open-simplex/open-simplex-noise.h

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plugins/generators/simplexnoise/c-open-simplex/open-simplex-noise.h

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		1		#ifndef OPEN_SIMPLEX_NOISE_H__
		2		#define OPEN_SIMPLEX_NOISE_H__
		3
		4		/*
		5		* OpenSimplex (Simplectic) Noise in C.
		6		* Ported to C from Kurt Spencer's java implementation by Stephen M. Cameron
		7		*
		8		* v1.1 (October 6, 2014)
		9		* - Ported to C
		10		*
		11		* v1.1 (October 5, 2014)
		12		* - Added 2D and 4D implementations.
		13		* - Proper gradient sets for all dimensions, from a
		14		* dimensionally-generalizable scheme with an actual
		15		* rhyme and reason behind it.
		16		* - Removed default permutation array in favor of
		17		* default seed.
		18		* - Changed seed-based constructor to be independent
		19		* of any particular randomization library, so results
		20		* will be the same when ported to other languages.
		21		*/
		22
		23		#if ((__GNUC_STDC_INLINE__) \|\| (__STDC_VERSION__ >= 199901L))
		24		#include <stdint.h>
		25		#define INLINE inline
		26		#elif (defined (_MSC_VER) \|\| defined (__GNUC_GNU_INLINE__))
		27		#include <stdint.h>
		28		#define INLINE __inline
		29		#else
		30		/* ANSI C doesn't have inline or stdint.h. */
		31		#define INLINE
		32		#endif
		33
		34		#ifdef __cplusplus
		35		extern "C" {
		36		#endif
		37
		38		struct osn_context;
		39
		40		int open_simplex_noise(int64_t seed, struct osn_context **ctx);
		41		void open_simplex_noise_free(struct osn_context *ctx);
		42		int open_simplex_noise_init_perm(struct osn_context *ctx, int16_t p[], int nelements);
		43		double open_simplex_noise2(struct osn_context *ctx, double x, double y);
		44		double open_simplex_noise3(struct osn_context *ctx, double x, double y, double z);
		45		double open_simplex_noise4(struct osn_context *ctx, double x, double y, double z, double w);
		46
		47		#ifdef __cplusplus
		48		}
		49		#endif
		50
		51		#endif