diff options
Diffstat (limited to 'libs/utils/LinearTransform.cpp')
| -rw-r--r-- | libs/utils/LinearTransform.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libs/utils/LinearTransform.cpp b/libs/utils/LinearTransform.cpp index d752415..b7d28d4 100644 --- a/libs/utils/LinearTransform.cpp +++ b/libs/utils/LinearTransform.cpp @@ -114,6 +114,7 @@ static bool linear_transform_s64_to_s64( int64_t basis1, int32_t N, uint32_t D, + bool invert_frac, int64_t basis2, int64_t* out) { uint64_t scaled, res; @@ -137,8 +138,8 @@ static bool linear_transform_s64_to_s64( is_neg = !is_neg; if (!scale_u64_to_u64(abs_val, - ABS(N), - D, + invert_frac ? D : ABS(N), + invert_frac ? ABS(N) : D, &scaled, is_neg)) return false; // overflow/undeflow @@ -191,6 +192,7 @@ bool LinearTransform::doForwardTransform(int64_t a_in, int64_t* b_out) const { a_zero, a_to_b_numer, a_to_b_denom, + false, b_zero, b_out); } @@ -201,8 +203,9 @@ bool LinearTransform::doReverseTransform(int64_t b_in, int64_t* a_out) const { return linear_transform_s64_to_s64(b_in, b_zero, - a_to_b_denom, a_to_b_numer, + a_to_b_denom, + true, a_zero, a_out); } |