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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
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989 changed files with 470949 additions and 0 deletions
249
third_party/aom/aom_dsp/x86/quantize_sse2.c
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249
third_party/aom/aom_dsp/x86/quantize_sse2.c
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/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <emmintrin.h>
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#include <xmmintrin.h>
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#include "./aom_dsp_rtcd.h"
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#include "aom/aom_integer.h"
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static INLINE __m128i load_coefficients(const tran_low_t *coeff_ptr) {
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#if CONFIG_HIGHBITDEPTH
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return _mm_setr_epi16((int16_t)coeff_ptr[0], (int16_t)coeff_ptr[1],
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(int16_t)coeff_ptr[2], (int16_t)coeff_ptr[3],
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(int16_t)coeff_ptr[4], (int16_t)coeff_ptr[5],
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(int16_t)coeff_ptr[6], (int16_t)coeff_ptr[7]);
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#else
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return _mm_load_si128((const __m128i *)coeff_ptr);
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#endif
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}
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static INLINE void store_coefficients(__m128i coeff_vals,
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tran_low_t *coeff_ptr) {
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#if CONFIG_HIGHBITDEPTH
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__m128i one = _mm_set1_epi16(1);
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__m128i coeff_vals_hi = _mm_mulhi_epi16(coeff_vals, one);
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__m128i coeff_vals_lo = _mm_mullo_epi16(coeff_vals, one);
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__m128i coeff_vals_1 = _mm_unpacklo_epi16(coeff_vals_lo, coeff_vals_hi);
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__m128i coeff_vals_2 = _mm_unpackhi_epi16(coeff_vals_lo, coeff_vals_hi);
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_mm_store_si128((__m128i *)(coeff_ptr), coeff_vals_1);
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_mm_store_si128((__m128i *)(coeff_ptr + 4), coeff_vals_2);
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#else
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_mm_store_si128((__m128i *)(coeff_ptr), coeff_vals);
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#endif
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}
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void aom_quantize_b_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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int skip_block, const int16_t *zbin_ptr,
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const int16_t *round_ptr, const int16_t *quant_ptr,
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const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
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tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr,
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uint16_t *eob_ptr, const int16_t *scan_ptr,
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const int16_t *iscan_ptr) {
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__m128i zero;
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(void)scan_ptr;
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coeff_ptr += n_coeffs;
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iscan_ptr += n_coeffs;
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qcoeff_ptr += n_coeffs;
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dqcoeff_ptr += n_coeffs;
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n_coeffs = -n_coeffs;
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zero = _mm_setzero_si128();
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if (!skip_block) {
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__m128i eob;
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__m128i zbin;
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__m128i round, quant, dequant, shift;
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{
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__m128i coeff0, coeff1;
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// Setup global values
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{
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__m128i pw_1;
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zbin = _mm_load_si128((const __m128i *)zbin_ptr);
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round = _mm_load_si128((const __m128i *)round_ptr);
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quant = _mm_load_si128((const __m128i *)quant_ptr);
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pw_1 = _mm_set1_epi16(1);
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zbin = _mm_sub_epi16(zbin, pw_1);
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dequant = _mm_load_si128((const __m128i *)dequant_ptr);
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shift = _mm_load_si128((const __m128i *)quant_shift_ptr);
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}
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{
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__m128i coeff0_sign, coeff1_sign;
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__m128i qcoeff0, qcoeff1;
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__m128i qtmp0, qtmp1;
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__m128i cmp_mask0, cmp_mask1;
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// Do DC and first 15 AC
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coeff0 = load_coefficients(coeff_ptr + n_coeffs);
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coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8);
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// Poor man's sign extract
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coeff0_sign = _mm_srai_epi16(coeff0, 15);
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coeff1_sign = _mm_srai_epi16(coeff1, 15);
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qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
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qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
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cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
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zbin = _mm_unpackhi_epi64(zbin, zbin); // Switch DC to AC
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cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
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qcoeff0 = _mm_adds_epi16(qcoeff0, round);
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round = _mm_unpackhi_epi64(round, round);
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qcoeff1 = _mm_adds_epi16(qcoeff1, round);
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qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
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quant = _mm_unpackhi_epi64(quant, quant);
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qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
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qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
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qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
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qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
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shift = _mm_unpackhi_epi64(shift, shift);
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qcoeff1 = _mm_mulhi_epi16(qtmp1, shift);
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// Reinsert signs
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qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign);
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qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
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// Mask out zbin threshold coeffs
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qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
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qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
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store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs);
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store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8);
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coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
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dequant = _mm_unpackhi_epi64(dequant, dequant);
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coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
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store_coefficients(coeff0, dqcoeff_ptr + n_coeffs);
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store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8);
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}
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{
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// Scan for eob
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__m128i zero_coeff0, zero_coeff1;
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__m128i nzero_coeff0, nzero_coeff1;
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__m128i iscan0, iscan1;
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__m128i eob1;
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zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
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zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
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nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
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nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
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iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
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iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
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// Add one to convert from indices to counts
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iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
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iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
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eob = _mm_and_si128(iscan0, nzero_coeff0);
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eob1 = _mm_and_si128(iscan1, nzero_coeff1);
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eob = _mm_max_epi16(eob, eob1);
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}
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n_coeffs += 8 * 2;
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}
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// AC only loop
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while (n_coeffs < 0) {
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__m128i coeff0, coeff1;
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{
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__m128i coeff0_sign, coeff1_sign;
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__m128i qcoeff0, qcoeff1;
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__m128i qtmp0, qtmp1;
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__m128i cmp_mask0, cmp_mask1;
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coeff0 = load_coefficients(coeff_ptr + n_coeffs);
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coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8);
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// Poor man's sign extract
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coeff0_sign = _mm_srai_epi16(coeff0, 15);
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coeff1_sign = _mm_srai_epi16(coeff1, 15);
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qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
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qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
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cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
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cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
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qcoeff0 = _mm_adds_epi16(qcoeff0, round);
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qcoeff1 = _mm_adds_epi16(qcoeff1, round);
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qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
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qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
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qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
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qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
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qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
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qcoeff1 = _mm_mulhi_epi16(qtmp1, shift);
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// Reinsert signs
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qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign);
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qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
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qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
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// Mask out zbin threshold coeffs
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qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
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qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
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store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs);
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store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8);
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coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
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coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
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store_coefficients(coeff0, dqcoeff_ptr + n_coeffs);
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store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8);
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}
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{
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// Scan for eob
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__m128i zero_coeff0, zero_coeff1;
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__m128i nzero_coeff0, nzero_coeff1;
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__m128i iscan0, iscan1;
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__m128i eob0, eob1;
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zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
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zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
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nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
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nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
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iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
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iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
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// Add one to convert from indices to counts
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iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
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iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
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eob0 = _mm_and_si128(iscan0, nzero_coeff0);
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eob1 = _mm_and_si128(iscan1, nzero_coeff1);
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eob0 = _mm_max_epi16(eob0, eob1);
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eob = _mm_max_epi16(eob, eob0);
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}
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n_coeffs += 8 * 2;
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}
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// Accumulate EOB
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{
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__m128i eob_shuffled;
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eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
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eob = _mm_max_epi16(eob, eob_shuffled);
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eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
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eob = _mm_max_epi16(eob, eob_shuffled);
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eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
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eob = _mm_max_epi16(eob, eob_shuffled);
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*eob_ptr = _mm_extract_epi16(eob, 1);
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}
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} else {
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do {
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store_coefficients(zero, dqcoeff_ptr + n_coeffs);
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store_coefficients(zero, dqcoeff_ptr + n_coeffs + 8);
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store_coefficients(zero, qcoeff_ptr + n_coeffs);
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store_coefficients(zero, qcoeff_ptr + n_coeffs + 8);
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n_coeffs += 8 * 2;
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} while (n_coeffs < 0);
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*eob_ptr = 0;
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}
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}
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