diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_base_inline.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_base_inline.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/source/blender/blenlib/intern/math_base_inline.c b/source/blender/blenlib/intern/math_base_inline.c index 53cf2d61963..cfcc54b1136 100644 --- a/source/blender/blenlib/intern/math_base_inline.c +++ b/source/blender/blenlib/intern/math_base_inline.c @@ -398,7 +398,7 @@ MINLINE float fractf(float a) return a - floorf(a); } -/* Adapted from godot-engine math_funcs.h. */ +/* Adapted from `godot-engine` math_funcs.h. */ MINLINE float wrapf(float value, float max, float min) { float range = max - min; @@ -722,15 +722,15 @@ MINLINE int integer_digits_i(const int i) #ifdef BLI_HAVE_SSE2 -/* Calculate initial guess for arg^exp based on float representation +/** + * Calculate initial guess for `arg^exp` based on float representation * This method gives a constant bias, which can be easily compensated by * multiplying with bias_coeff. - * Gives better results for exponents near 1 (e. g. 4/5). + * Gives better results for exponents near 1 (e.g. `4/5`). * exp = exponent, encoded as uint32_t - * e2coeff = 2^(127/exponent - 127) * bias_coeff^(1/exponent), encoded as - * uint32_t + * `e2coeff = 2^(127/exponent - 127) * bias_coeff^(1/exponent)`, encoded as `uint32_t`. * - * We hope that exp and e2coeff gets properly inlined + * We hope that exp and e2coeff gets properly inlined. */ MALWAYS_INLINE __m128 _bli_math_fastpow(const int exp, const int e2coeff, const __m128 arg) { @@ -742,7 +742,7 @@ MALWAYS_INLINE __m128 _bli_math_fastpow(const int exp, const int e2coeff, const return ret; } -/* Improve x ^ 1.0f/5.0f solution with Newton-Raphson method */ +/** Improve `x ^ 1.0f/5.0f` solution with Newton-Raphson method */ MALWAYS_INLINE __m128 _bli_math_improve_5throot_solution(const __m128 old_result, const __m128 x) { __m128 approx2 = _mm_mul_ps(old_result, old_result); @@ -752,7 +752,7 @@ MALWAYS_INLINE __m128 _bli_math_improve_5throot_solution(const __m128 old_result return _mm_mul_ps(summ, _mm_set1_ps(1.0f / 5.0f)); } -/* Calculate powf(x, 2.4). Working domain: 1e-10 < x < 1e+10 */ +/** Calculate `powf(x, 2.4)`. Working domain: `1e-10 < x < 1e+10`. */ MALWAYS_INLINE __m128 _bli_math_fastpow24(const __m128 arg) { /* max, avg and |avg| errors were calculated in gcc without FMA instructions |