diff options
Diffstat (limited to 'third_party/skcms/src/Transform_inl.h')
| -rw-r--r-- | third_party/skcms/src/Transform_inl.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/third_party/skcms/src/Transform_inl.h b/third_party/skcms/src/Transform_inl.h index debdf68a88..15f19a0638 100644 --- a/third_party/skcms/src/Transform_inl.h +++ b/third_party/skcms/src/Transform_inl.h @@ -221,16 +221,18 @@ SI ATTR F NS(approx_exp2_)(F x) { #define approx_exp2 NS(approx_exp2_) SI ATTR F NS(approx_pow_)(F x, float y) { - // Handling all the integral powers first increases our precision a little. +#if defined(SKCMS_LEGACY_POWF) F r = F1; while (y >= 1.0f) { r *= x; y -= 1.0f; } - - // TODO: The rest of this could perhaps be specialized further knowing 0 <= y < 1. - assert (0 <= y && y < 1); - return (F)if_then_else((x == F0) | (x == F1), x, r * approx_exp2(approx_log2(x) * y)); + return (F)if_then_else((x == F0) | (x == F1), x + , r * approx_exp2(approx_log2(x) * y)); +#else + return (F)if_then_else((x == F0) | (x == F1), x + , approx_exp2(approx_log2(x) * y)); +#endif } #define approx_pow NS(approx_pow_) |