hashirama/uvg266
1
0
Fork 0
mirror of https://github.com/ultravideo/uvg266.git synced 2024-12-04 05:54:05 +00:00
Code Issues Actions Projects Releases Wiki Activity

Remove setr from the loop in hor_w4

Browse source
This commit is contained in:
Joose Sainio 2023-09-12 14:48:33 +03:00
parent 8bbf01c376
commit 4e4084434e
1 changed files with 7 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/strategies/avx2/intra-avx2.c
View file

@ -701,12 +701,16 @@ static void intra_pred_planar_hor_w4(const uvg_pixel* ref, const int line, const
__m256i v_last_ref_coeff = _mm256_setr_epi16(1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4);
__m256i v_last_ref_mul = _mm256_mullo_epi16(v_last_ref, v_last_ref_coeff);
__m256i shuffle_mask = _mm256_setr_epi8(0, -1, 0, -1, 0, -1, 0, -1, 8, -1, 8, -1, 8, -1, 8, -1, 0, -1, 0, -1, 0, -1, 0, -1, 8, -1, 8, -1, 8, -1, 8, -1);
for (int i = 0, d = 0; i < line; i += 4, ++d) {
// Handle 4 lines at a time
// TODO: setr is VERY SLOW, replace this
__m256i v_ref = _mm256_setr_epi16(ref[i + 1], ref[i + 1], ref[i + 1], ref[i + 1], ref[i + 2], ref[i + 2], ref[i + 2], ref[i + 2],
ref[i + 3], ref[i + 3], ref[i + 3], ref[i + 3], ref[i + 4], ref[i + 4], ref[i + 4], ref[i + 4]);
// | ref1 | ref2 | ref3 | ref4 | Don't care
__m128i v_ref_0 = _mm_loadu_si128((__m128i const*)& ref[i + 1]);
// | ref1 | 0 * 7 | ref2 | 0 * 7 | ref3 | 0 * 7 | ref4 | 0* 7 |
__m256i v_ref = _mm256_cvtepu8_epi64(v_ref_0);
// | ref1_l | ref1_h | ref1_l | ref1_h | ...
v_ref = _mm256_shuffle_epi8(v_ref, shuffle_mask);
__m256i v_tmp = _mm256_mullo_epi16(v_ref, v_ref_coeff);