blob: afe2f924b341e09c0d299e14d11b13acec7e9554 [file] [log] [blame]
* Copyright (c) 2017 The WebM project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <emmintrin.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
static INLINE void load_b_values(const int16_t *zbin_ptr, __m128i *zbin,
const int16_t *round_ptr, __m128i *round,
const int16_t *quant_ptr, __m128i *quant,
const int16_t *dequant_ptr, __m128i *dequant,
const int16_t *shift_ptr, __m128i *shift) {
*zbin = _mm_load_si128((const __m128i *)zbin_ptr);
*round = _mm_load_si128((const __m128i *)round_ptr);
*quant = _mm_load_si128((const __m128i *)quant_ptr);
*zbin = _mm_sub_epi16(*zbin, _mm_set1_epi16(1));
*dequant = _mm_load_si128((const __m128i *)dequant_ptr);
*shift = _mm_load_si128((const __m128i *)shift_ptr);
// With ssse3 and later abs() and sign() are preferred.
static INLINE __m128i invert_sign_sse2(__m128i a, __m128i sign) {
a = _mm_xor_si128(a, sign);
return _mm_sub_epi16(a, sign);
static INLINE void calculate_qcoeff(__m128i *coeff, const __m128i round,
const __m128i quant, const __m128i shift) {
__m128i tmp, qcoeff;
qcoeff = _mm_adds_epi16(*coeff, round);
tmp = _mm_mulhi_epi16(qcoeff, quant);
qcoeff = _mm_add_epi16(tmp, qcoeff);
*coeff = _mm_mulhi_epi16(qcoeff, shift);
static INLINE void calculate_dqcoeff_and_store(__m128i qcoeff, __m128i dequant,
tran_low_t *dqcoeff) {
const __m128i low = _mm_mullo_epi16(qcoeff, dequant);
const __m128i high = _mm_mulhi_epi16(qcoeff, dequant);
const __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high);
const __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high);
_mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0);
_mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1);
const __m128i dqcoeff16 = _mm_mullo_epi16(qcoeff, dequant);
_mm_store_si128((__m128i *)(dqcoeff), dqcoeff16);
// Scan 16 values for eob reference in scan. Use masks (-1) from comparing to
// zbin to add 1 to the index in 'scan'.
static INLINE __m128i scan_for_eob(__m128i *coeff0, __m128i *coeff1,
const __m128i zbin_mask0,
const __m128i zbin_mask1,
const int16_t *scan, const int index,
const __m128i zero) {
const __m128i zero_coeff0 = _mm_cmpeq_epi16(*coeff0, zero);
const __m128i zero_coeff1 = _mm_cmpeq_epi16(*coeff1, zero);
__m128i scan0 = _mm_load_si128((const __m128i *)(scan + index));
__m128i scan1 = _mm_load_si128((const __m128i *)(scan + index + 8));
__m128i eob0, eob1;
// Add one to convert from indices to counts
scan0 = _mm_sub_epi16(scan0, zbin_mask0);
scan1 = _mm_sub_epi16(scan1, zbin_mask1);
eob0 = _mm_andnot_si128(zero_coeff0, scan0);
eob1 = _mm_andnot_si128(zero_coeff1, scan1);
return _mm_max_epi16(eob0, eob1);
static INLINE int16_t accumulate_eob(__m128i eob) {
__m128i eob_shuffled;
eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
eob = _mm_max_epi16(eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
eob = _mm_max_epi16(eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
eob = _mm_max_epi16(eob, eob_shuffled);
return _mm_extract_epi16(eob, 1);