1 /*
2 * Copyright (c) 2018, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11 #ifndef AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_
12 #define AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_
13
14 #include <immintrin.h>
15
16 #include "config/aom_config.h"
17 #include "config/av1_rtcd.h"
18
19 #include "aom/aom_integer.h"
20 #include "aom_dsp/x86/transpose_sse2.h"
21 #include "aom_dsp/x86/txfm_common_sse2.h"
22 #include "aom_dsp/x86/txfm_common_avx2.h"
23
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27
28 // half input is zero
29 #define btf_16_w16_0_avx2(w0, w1, in, out0, out1) \
30 do { \
31 const __m256i _w0 = _mm256_set1_epi16(w0 * 8); \
32 const __m256i _w1 = _mm256_set1_epi16(w1 * 8); \
33 const __m256i _in = in; \
34 out0 = _mm256_mulhrs_epi16(_in, _w0); \
35 out1 = _mm256_mulhrs_epi16(_in, _w1); \
36 } while (0)
37
round_shift_avx2(const __m256i * input,__m256i * output,int size)38 static INLINE void round_shift_avx2(const __m256i *input, __m256i *output,
39 int size) {
40 const __m256i scale = _mm256_set1_epi16(NewInvSqrt2 * 8);
41 for (int i = 0; i < size; ++i) {
42 output[i] = _mm256_mulhrs_epi16(input[i], scale);
43 }
44 }
45
write_recon_w16_avx2(__m256i res,uint8_t * output)46 static INLINE void write_recon_w16_avx2(__m256i res, uint8_t *output) {
47 __m128i pred = _mm_loadu_si128((__m128i const *)(output));
48 __m256i u = _mm256_adds_epi16(_mm256_cvtepu8_epi16(pred), res);
49 __m128i y = _mm256_castsi256_si128(
50 _mm256_permute4x64_epi64(_mm256_packus_epi16(u, u), 168));
51 _mm_storeu_si128((__m128i *)(output), y);
52 }
53
lowbd_write_buffer_16xn_avx2(__m256i * in,uint8_t * output,int stride,int flipud,int height)54 static INLINE void lowbd_write_buffer_16xn_avx2(__m256i *in, uint8_t *output,
55 int stride, int flipud,
56 int height) {
57 int j = flipud ? (height - 1) : 0;
58 const int step = flipud ? -1 : 1;
59 for (int i = 0; i < height; ++i, j += step) {
60 write_recon_w16_avx2(in[j], output + i * stride);
61 }
62 }
63
64 void av1_lowbd_inv_txfm2d_add_avx2(const int32_t *input, uint8_t *output,
65 int stride, TX_TYPE tx_type, TX_SIZE tx_size,
66 int eob);
67 #ifdef __cplusplus
68 }
69 #endif
70
71 #endif // AOM_AV1_COMMON_X86_AV1_INV_TXFM_AVX2_H_
72