2012-07-27 19:11:45 +02:00
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/*
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* This software is licensed under the terms of the MIT-License
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2017-02-11 04:52:08 +01:00
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* See COPYING for further information.
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2012-07-27 19:11:45 +02:00
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* ---
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2019-01-23 21:10:43 +01:00
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* Copyright (c) 2011-2019, Lukas Weber <laochailan@web.de>.
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* Copyright (c) 2012-2019, Andrei Alexeyev <akari@alienslab.net>.
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2012-07-27 19:11:45 +02:00
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*/
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2019-01-23 21:10:43 +01:00
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#ifndef IGUARD_random_h
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#define IGUARD_random_h
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2017-11-25 20:45:11 +01:00
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#include "taisei.h"
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2012-07-27 19:11:45 +02:00
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2017-12-04 04:26:27 +01:00
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#define CMWC_CYCLE 4096 // as Marsaglia recommends
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#define CMWC_C_MAX 809430660 // as Marsaglia recommends
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struct RandomState {
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2018-01-12 19:26:07 +01:00
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uint32_t Q[CMWC_CYCLE];
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uint32_t c; // must be limited with CMWC_C_MAX
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uint32_t i;
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bool locked;
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2017-12-04 04:26:27 +01:00
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};
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typedef struct RandomState RandomState;
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2012-07-27 19:11:45 +02:00
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2017-02-05 21:16:50 +01:00
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void tsrand_init(RandomState *rnd, uint32_t seed);
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2012-07-27 19:11:45 +02:00
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void tsrand_switch(RandomState *rnd);
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void tsrand_seed_p(RandomState *rnd, uint32_t seed);
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2017-02-05 21:16:50 +01:00
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uint32_t tsrand_p(RandomState *rnd);
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2012-07-27 19:11:45 +02:00
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2012-08-10 21:27:46 +02:00
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void tsrand_seed(uint32_t seed);
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2017-02-05 21:16:50 +01:00
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uint32_t tsrand(void);
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void tsrand_lock(RandomState *rnd);
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void tsrand_unlock(RandomState *rnd);
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2012-07-27 19:11:45 +02:00
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2017-12-04 04:26:27 +01:00
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float frand(void);
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float nfrand(void);
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2012-07-27 19:11:45 +02:00
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2018-04-12 16:08:48 +02:00
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void __tsrand_fill_p(RandomState *rnd, int amount, const char *file, uint line);
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void __tsrand_fill(int amount, const char *file, uint line);
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uint32_t __tsrand_a(int idx, const char *file, uint line);
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float __afrand(int idx, const char *file, uint line);
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float __anfrand(int idx, const char *file, uint line);
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2017-02-05 21:16:50 +01:00
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#define tsrand_fill_p(rnd,amount) __tsrand_fill_p(rnd, amount, __FILE__, __LINE__)
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#define tsrand_fill(amount) __tsrand_fill(amount, __FILE__, __LINE__)
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#define tsrand_a(idx) __tsrand_a(idx, __FILE__, __LINE__)
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#define afrand(idx) __afrand(idx, __FILE__, __LINE__)
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#define anfrand(idx) __anfrand(idx, __FILE__, __LINE__)
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2012-08-04 02:49:12 +02:00
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2017-12-04 04:26:27 +01:00
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#define TSRAND_MAX UINT32_MAX
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2012-07-27 19:11:45 +02:00
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2017-02-05 21:16:50 +01:00
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#define TSRAND_ARRAY_LIMIT 64
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2012-07-27 19:11:45 +02:00
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#define srand USE_tsrand_seed_INSTEAD_OF_srand
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#define rand USE_tsrand_INSTEAD_OF_rand
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2019-01-23 21:10:43 +01:00
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#endif // IGUARD_random_h
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