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gallium/util: add bitcast helpers for double and uint

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This complements u_bitcast_f2u and u_bitcast_u2f with similar helpers
to cast between double and unsigned integers as well.

Reviewed-by: Hoe Hao Cheng <haochengho12907@gmail.com>
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8034>
This commit is contained in:
Erik Faye-Lund 2020-12-10 13:20:53 +01:00 • committed by Marge Bot
parent 615c4610bb
commit c314893988
1 changed files with 16 additions and 0 deletions
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16
src/gallium/auxiliary/util/u_bitcast.h
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@ -45,6 +45,14 @@ u_bitcast_f2u(float f)
return u;
}
static inline uint64_t
u_bitcast_d2u(double d)
{
uint64_t u;
memcpy(&u, &d, sizeof(u));
return u;
}
static inline float
u_bitcast_u2f(uint32_t u)
{
@ -53,6 +61,14 @@ u_bitcast_u2f(uint32_t u)
return f;
}
static inline double
u_bitcast_u2d(uint64_t u)
{
double d;
memcpy(&d, &u, sizeof(d));
return d;
}
#ifdef __cplusplus
}
#endif