hashirama/uvg266
1
0
Fork 0
mirror of https://github.com/ultravideo/uvg266.git synced 2024-11-27 11:24:05 +00:00
Code Issues Actions Projects Releases Wiki Activity

Add a descriptive comment to coefficient reordering

Browse source
This commit is contained in:
Pauli Oikkonen 2018-12-03 14:41:41 +02:00
parent f78bf2ebcb
commit c465578048
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/strategies/avx2/quant-avx2.c
View file

@ -400,6 +400,10 @@ void kvz_quant_flat_avx2(const encoder_state_t * const state, coeff_t * __restri
scan[subpos] + width * 3,
};
// NOTE: Upper means "higher in pixel order inside block", which implies
// lower addresses (note the difference: HIGH and LOW vs UPPER and LOWER),
// so upper 128b vector actually becomes the lower part of a 256-bit coeff
// vector and lower vector the higher part!
__m128d coefs_d_upper;
__m128d coefs_d_lower;
__m128d q_coefs_d_upper;