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Add API for restoring PseudoRandom and PcgRandom state (#14123)

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sfence
2024-01-16 23:20:52 +01:00
committed by GitHub
parent 8093044f07
commit ceaa7e2fb0
9 changed files with 155 additions and 29 deletions
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8
src/noise.h
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@@ -76,6 +76,11 @@ public:
return (next() % (max - min + 1)) + min;
}
// Allow save and restore of state
inline s32 getState() const
{
return m_next;
}
private:
s32 m_next;
};
@@ -94,6 +99,9 @@ public:
void bytes(void *out, size_t len);
s32 randNormalDist(s32 min, s32 max, int num_trials=6);
// Allow save and restore of state
void getState(u64 state[2]) const;
void setState(const u64 state[2]);
private:
u64 m_state;
u64 m_inc;