| /* |
| * Copyright (c) 2018, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| #ifndef AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_ |
| #define AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_ |
| |
| #include <immintrin.h> |
| |
| #include "config/aom_config.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/x86/transpose_sse2.h" |
| #include "aom_dsp/x86/txfm_common_sse2.h" |
| #include "aom_dsp/x86/txfm_common_avx2.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // half input is zero |
| #define btf_16_w16_0_avx2(w0, w1, in, out0, out1) \ |
| do { \ |
| const __m256i _w0 = _mm256_set1_epi16(w0 * 8); \ |
| const __m256i _w1 = _mm256_set1_epi16(w1 * 8); \ |
| const __m256i _in = in; \ |
| out0 = _mm256_mulhrs_epi16(_in, _w0); \ |
| out1 = _mm256_mulhrs_epi16(_in, _w1); \ |
| } while (0) |
| |
| static INLINE void round_shift_avx2(const __m256i *input, __m256i *output, |
| int size) { |
| const __m256i scale = _mm256_set1_epi16(NewInvSqrt2 * 8); |
| for (int i = 0; i < size; ++i) { |
| output[i] = _mm256_mulhrs_epi16(input[i], scale); |
| } |
| } |
| |
| static INLINE void write_recon_w16_avx2(__m256i res, uint8_t *output) { |
| __m128i pred = _mm_loadu_si128((__m128i const *)(output)); |
| __m256i u = _mm256_adds_epi16(_mm256_cvtepu8_epi16(pred), res); |
| __m128i y = _mm256_castsi256_si128( |
| _mm256_permute4x64_epi64(_mm256_packus_epi16(u, u), 168)); |
| _mm_storeu_si128((__m128i *)(output), y); |
| } |
| |
| static INLINE void lowbd_write_buffer_16xn_avx2(__m256i *in, uint8_t *output, |
| int stride, int flipud, |
| int height) { |
| int j = flipud ? (height - 1) : 0; |
| const int step = flipud ? -1 : 1; |
| for (int i = 0; i < height; ++i, j += step) { |
| write_recon_w16_avx2(in[j], output + i * stride); |
| } |
| } |
| |
| void av1_lowbd_inv_txfm2d_add_avx2(const int32_t *input, uint8_t *output, |
| int stride, TX_TYPE tx_type, TX_SIZE tx_size, |
| int eob); |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif // AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_ |