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d3dx9_36: Replace powf(2, unsigned int) with (1u << unsigned int). 

Signed-off-by: Stefan Dösinger <stefan@codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Stefan Dösinger 2015-11-22 01:00:57 +01:00 committed by Alexandre Julliard
parent 66f4015781
commit 1e78257109
1 changed files with 5 additions and 5 deletions
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10
dlls/d3dx9_36/math.c
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@ -2138,21 +2138,21 @@ unsigned short float_32_to_16(const float in)
if (isnan(in)) return (sign ? 0xffff : 0x7fff);
if (in == 0.0f) return (sign ? 0x8000 : 0x0000);
if (tmp < powf(2, 10))
if (tmp < (float)(1u << 10))
{
do
{
tmp *= 2.0f;
exp--;
} while (tmp < powf(2, 10));
} while (tmp < (float)(1u << 10));
}
else if (tmp >= powf(2, 11))
else if (tmp >= (float)(1u << 11))
{
do
{
tmp /= 2.0f;
exp++;
} while (tmp >= powf(2, 11));
} while (tmp >= (float)(1u << 11));
}
exp += 10; /* Normalize the mantissa */
@ -2190,7 +2190,7 @@ unsigned short float_32_to_16(const float in)
exp = origexp;
/* the 13 extra bits from single precision are used for rounding */
mantissa = (unsigned int)(tmp * powf(2, 13));
mantissa = (unsigned int)(tmp * (1u << 13));
mantissa >>= 1 - exp; /* denormalize */
mantissa -= ~(mantissa >> 13) & 1; /* round half to even */