diff options
Diffstat (limited to 'source/blender/blenlib/intern/rand.c')
| -rw-r--r-- | source/blender/blenlib/intern/rand.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/rand.c b/source/blender/blenlib/intern/rand.c index 3dff0b31091..59ccf381f29 100644 --- a/source/blender/blenlib/intern/rand.c +++ b/source/blender/blenlib/intern/rand.c @@ -245,3 +245,29 @@ float BLI_thread_frand(int thread) return BLI_rng_get_float(&rng_tab[thread]); } +struct RNG_THREAD_ARRAY { + RNG rng_tab[BLENDER_MAX_THREADS]; +}; + +RNG_THREAD_ARRAY *BLI_rng_threaded_new(void) +{ + unsigned int i; + RNG_THREAD_ARRAY *rngarr = MEM_mallocN(sizeof(RNG_THREAD_ARRAY), "random_array"); + + for (i = 0; i < BLENDER_MAX_THREADS; i++) { + BLI_rng_srandom(&rngarr->rng_tab[i], (unsigned int)clock()); + } + + return rngarr; +} + +void BLI_rng_threaded_free(struct RNG_THREAD_ARRAY *rngarr) +{ + MEM_freeN(rngarr); +} + +int BLI_rng_thread_rand(RNG_THREAD_ARRAY *rngarr, int thread) +{ + return BLI_rng_get_int(&rngarr->rng_tab[thread]); +} + |