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util: Silent potential loss of precision warnings.

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Also ensure multiplication doesn't happen for negative numbers.
This commit is contained in:
José Fonseca
2010-01-01 19:39:09 +00:00
parent 9595b59247
commit c852e960cc
1 changed files with 2 additions and 3 deletions
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5
src/gallium/auxiliary/util/u_math.h
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@@ -585,13 +585,12 @@ do { \
static INLINE uint32_t util_unsigned_fixed(float value, unsigned frac_bits) static INLINE uint32_t util_unsigned_fixed(float value, unsigned frac_bits)
{ {
value *= (1<<frac_bits); return value < 0 ? 0 : (uint32_t)(value * (1<<frac_bits));
return value < 0 ? 0 : value;
} }
static INLINE int32_t util_signed_fixed(float value, unsigned frac_bits) static INLINE int32_t util_signed_fixed(float value, unsigned frac_bits)
{ {
return value * (1<<frac_bits); return (int32_t)(value * (1<<frac_bits));
} }