diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_format_rgb9e5.h')
| -rw-r--r-- | src/gallium/auxiliary/util/u_format_rgb9e5.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/util/u_format_rgb9e5.h b/src/gallium/auxiliary/util/u_format_rgb9e5.h index 973e542c536..1c12a668d81 100644 --- a/src/gallium/auxiliary/util/u_format_rgb9e5.h +++ b/src/gallium/auxiliary/util/u_format_rgb9e5.h @@ -115,8 +115,8 @@ static inline unsigned float3_to_rgb9e5(const float rgb[3]) exp_shared = MAX2(-RGB9E5_EXP_BIAS-1, rgb9e5_FloorLog2(maxrgb)) + 1 + RGB9E5_EXP_BIAS; assert(exp_shared <= RGB9E5_MAX_VALID_BIASED_EXP); assert(exp_shared >= 0); - /* This pow function could be replaced by a table. */ - denom = pow(2, exp_shared - RGB9E5_EXP_BIAS - RGB9E5_MANTISSA_BITS); + /* This exp2 function could be replaced by a table. */ + denom = exp2(exp_shared - RGB9E5_EXP_BIAS - RGB9E5_MANTISSA_BITS); maxm = (int) floor(maxrgb / denom + 0.5); if (maxm == MAX_RGB9E5_MANTISSA+1) { @@ -154,7 +154,7 @@ static inline void rgb9e5_to_float3(unsigned rgb, float retval[3]) v.raw = rgb; exponent = v.field.biasedexponent - RGB9E5_EXP_BIAS - RGB9E5_MANTISSA_BITS; - scale = (float) pow(2, exponent); + scale = exp2f(exponent); retval[0] = v.field.r * scale; retval[1] = v.field.g * scale; |