290 lines
12 KiB
C
290 lines
12 KiB
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 "config/av1_rtcd.h"
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#include "aom/aom_integer.h"
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#include "aom_dsp/x86/quantize_x86.h"
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static INLINE void read_coeff(const tran_low_t *coeff, intptr_t offset,
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__m128i *c0, __m128i *c1) {
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const tran_low_t *addr = coeff + offset;
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if (sizeof(tran_low_t) == 4) {
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const __m128i x0 = _mm_load_si128((const __m128i *)addr);
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const __m128i x1 = _mm_load_si128((const __m128i *)addr + 1);
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const __m128i x2 = _mm_load_si128((const __m128i *)addr + 2);
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const __m128i x3 = _mm_load_si128((const __m128i *)addr + 3);
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*c0 = _mm_packs_epi32(x0, x1);
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*c1 = _mm_packs_epi32(x2, x3);
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} else {
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*c0 = _mm_load_si128((const __m128i *)addr);
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*c1 = _mm_load_si128((const __m128i *)addr + 1);
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}
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}
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static INLINE void write_qcoeff(const __m128i *qc0, const __m128i *qc1,
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tran_low_t *qcoeff, intptr_t offset) {
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tran_low_t *addr = qcoeff + offset;
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if (sizeof(tran_low_t) == 4) {
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const __m128i zero = _mm_setzero_si128();
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__m128i sign_bits = _mm_cmplt_epi16(*qc0, zero);
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__m128i y0 = _mm_unpacklo_epi16(*qc0, sign_bits);
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__m128i y1 = _mm_unpackhi_epi16(*qc0, sign_bits);
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_mm_store_si128((__m128i *)addr, y0);
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_mm_store_si128((__m128i *)addr + 1, y1);
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sign_bits = _mm_cmplt_epi16(*qc1, zero);
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y0 = _mm_unpacklo_epi16(*qc1, sign_bits);
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y1 = _mm_unpackhi_epi16(*qc1, sign_bits);
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_mm_store_si128((__m128i *)addr + 2, y0);
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_mm_store_si128((__m128i *)addr + 3, y1);
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} else {
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_mm_store_si128((__m128i *)addr, *qc0);
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_mm_store_si128((__m128i *)addr + 1, *qc1);
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}
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}
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static INLINE void write_zero(tran_low_t *qcoeff, intptr_t offset) {
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const __m128i zero = _mm_setzero_si128();
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tran_low_t *addr = qcoeff + offset;
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if (sizeof(tran_low_t) == 4) {
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_mm_store_si128((__m128i *)addr, zero);
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_mm_store_si128((__m128i *)addr + 1, zero);
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_mm_store_si128((__m128i *)addr + 2, zero);
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_mm_store_si128((__m128i *)addr + 3, zero);
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} else {
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_mm_store_si128((__m128i *)addr, zero);
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_mm_store_si128((__m128i *)addr + 1, zero);
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}
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}
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static INLINE void quantize(const int16_t *iscan_ptr,
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const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const __m128i *round0, const __m128i *round1,
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const __m128i *quant0, const __m128i *quant1,
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const __m128i *dequant0, const __m128i *dequant1,
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const __m128i *thr0, const __m128i *thr1,
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__m128i *eob) {
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__m128i coeff0, coeff1;
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// Do DC and first 15 AC
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read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1);
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// Poor man's sign extract
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const __m128i coeff0_sign = _mm_srai_epi16(coeff0, 15);
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const __m128i coeff1_sign = _mm_srai_epi16(coeff1, 15);
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__m128i qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
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__m128i 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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const __m128i mask0 = _mm_or_si128(_mm_cmpgt_epi16(qcoeff0, *thr0),
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_mm_cmpeq_epi16(qcoeff0, *thr0));
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const __m128i mask1 = _mm_or_si128(_mm_cmpgt_epi16(qcoeff1, *thr1),
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_mm_cmpeq_epi16(qcoeff1, *thr1));
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const int nzflag = _mm_movemask_epi8(mask0) | _mm_movemask_epi8(mask1);
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if (nzflag) {
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qcoeff0 = _mm_adds_epi16(qcoeff0, *round0);
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qcoeff1 = _mm_adds_epi16(qcoeff1, *round1);
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const __m128i qtmp0 = _mm_mulhi_epi16(qcoeff0, *quant0);
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const __m128i qtmp1 = _mm_mulhi_epi16(qcoeff1, *quant1);
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// Reinsert signs
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qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(qtmp1, 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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write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs);
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coeff0 = _mm_mullo_epi16(qcoeff0, *dequant0);
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coeff1 = _mm_mullo_epi16(qcoeff1, *dequant1);
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write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs);
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const __m128i zero = _mm_setzero_si128();
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// Scan for eob
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const __m128i zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
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const __m128i zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
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const __m128i nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
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const __m128i nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
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const __m128i iscan0 =
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_mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
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const __m128i iscan1 =
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_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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const __m128i iscan0_nz = _mm_sub_epi16(iscan0, nzero_coeff0);
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const __m128i iscan1_nz = _mm_sub_epi16(iscan1, nzero_coeff1);
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const __m128i eob0 = _mm_and_si128(iscan0_nz, nzero_coeff0);
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const __m128i eob1 = _mm_and_si128(iscan1_nz, nzero_coeff1);
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const __m128i eob2 = _mm_max_epi16(eob0, eob1);
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*eob = _mm_max_epi16(*eob, eob2);
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} else {
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write_zero(qcoeff_ptr, n_coeffs);
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write_zero(dqcoeff_ptr, n_coeffs);
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}
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}
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void av1_quantize_fp_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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const int16_t *zbin_ptr, const int16_t *round_ptr,
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const int16_t *quant_ptr,
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const int16_t *quant_shift_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
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const int16_t *dequant_ptr, uint16_t *eob_ptr,
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const int16_t *scan_ptr, const int16_t *iscan_ptr) {
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(void)scan_ptr;
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(void)zbin_ptr;
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(void)quant_shift_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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const __m128i round0 = _mm_load_si128((const __m128i *)round_ptr);
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const __m128i round1 = _mm_unpackhi_epi64(round0, round0);
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const __m128i quant0 = _mm_load_si128((const __m128i *)quant_ptr);
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const __m128i quant1 = _mm_unpackhi_epi64(quant0, quant0);
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const __m128i dequant0 = _mm_load_si128((const __m128i *)dequant_ptr);
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const __m128i dequant1 = _mm_unpackhi_epi64(dequant0, dequant0);
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const __m128i thr0 = _mm_srai_epi16(dequant0, 1);
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const __m128i thr1 = _mm_srai_epi16(dequant1, 1);
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__m128i eob = _mm_setzero_si128();
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quantize(iscan_ptr, coeff_ptr, n_coeffs, qcoeff_ptr, dqcoeff_ptr, &round0,
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&round1, &quant0, &quant1, &dequant0, &dequant1, &thr0, &thr1, &eob);
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n_coeffs += 8 * 2;
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// AC only loop
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while (n_coeffs < 0) {
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quantize(iscan_ptr, coeff_ptr, n_coeffs, qcoeff_ptr, dqcoeff_ptr, &round1,
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&round1, &quant1, &quant1, &dequant1, &dequant1, &thr1, &thr1,
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&eob);
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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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}
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static INLINE void quantize_lp(const int16_t *iscan_ptr,
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const int16_t *coeff_ptr, intptr_t n_coeffs,
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int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
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const __m128i *round0, const __m128i *round1,
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const __m128i *quant0, const __m128i *quant1,
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const __m128i *dequant0, const __m128i *dequant1,
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__m128i *eob) {
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const int16_t *read = coeff_ptr + n_coeffs;
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__m128i coeff0 = _mm_load_si128((const __m128i *)read);
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__m128i coeff1 = _mm_load_si128((const __m128i *)read + 1);
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// Poor man's sign extract
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const __m128i coeff0_sign = _mm_srai_epi16(coeff0, 15);
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const __m128i coeff1_sign = _mm_srai_epi16(coeff1, 15);
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__m128i qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
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__m128i 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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qcoeff0 = _mm_adds_epi16(qcoeff0, *round0);
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qcoeff1 = _mm_adds_epi16(qcoeff1, *round1);
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const __m128i qtmp0 = _mm_mulhi_epi16(qcoeff0, *quant0);
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const __m128i qtmp1 = _mm_mulhi_epi16(qcoeff1, *quant1);
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// Reinsert signs
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qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
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qcoeff1 = _mm_xor_si128(qtmp1, 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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int16_t *addr = qcoeff_ptr + n_coeffs;
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_mm_store_si128((__m128i *)addr, qcoeff0);
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_mm_store_si128((__m128i *)addr + 1, qcoeff1);
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coeff0 = _mm_mullo_epi16(qcoeff0, *dequant0);
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coeff1 = _mm_mullo_epi16(qcoeff1, *dequant1);
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addr = dqcoeff_ptr + n_coeffs;
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_mm_store_si128((__m128i *)addr, coeff0);
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_mm_store_si128((__m128i *)addr + 1, coeff1);
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const __m128i zero = _mm_setzero_si128();
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// Scan for eob
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const __m128i zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
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const __m128i zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
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const __m128i nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
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const __m128i nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
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const __m128i iscan0 =
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_mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
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const __m128i iscan1 =
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_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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const __m128i iscan0_nz = _mm_sub_epi16(iscan0, nzero_coeff0);
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const __m128i iscan1_nz = _mm_sub_epi16(iscan1, nzero_coeff1);
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const __m128i eob0 = _mm_and_si128(iscan0_nz, nzero_coeff0);
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const __m128i eob1 = _mm_and_si128(iscan1_nz, nzero_coeff1);
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const __m128i eob2 = _mm_max_epi16(eob0, eob1);
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*eob = _mm_max_epi16(*eob, eob2);
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}
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void av1_quantize_lp_sse2(const int16_t *coeff_ptr, intptr_t n_coeffs,
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const int16_t *round_ptr, const int16_t *quant_ptr,
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int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
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const int16_t *dequant_ptr, uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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(void)scan;
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coeff_ptr += n_coeffs;
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iscan += 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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// Setup global values
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const __m128i round0 = _mm_load_si128((const __m128i *)round_ptr);
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const __m128i round1 = _mm_unpackhi_epi64(round0, round0);
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const __m128i quant0 = _mm_load_si128((const __m128i *)quant_ptr);
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const __m128i quant1 = _mm_unpackhi_epi64(quant0, quant0);
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const __m128i dequant0 = _mm_load_si128((const __m128i *)dequant_ptr);
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const __m128i dequant1 = _mm_unpackhi_epi64(dequant0, dequant0);
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__m128i eob = _mm_setzero_si128();
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// DC and first 15 AC
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quantize_lp(iscan, coeff_ptr, n_coeffs, qcoeff_ptr, dqcoeff_ptr, &round0,
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&round1, &quant0, &quant1, &dequant0, &dequant1, &eob);
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n_coeffs += 8 * 2;
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// AC only loop
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while (n_coeffs < 0) {
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quantize_lp(iscan, coeff_ptr, n_coeffs, qcoeff_ptr, dqcoeff_ptr, &round1,
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||
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&round1, &quant1, &quant1, &dequant1, &dequant1, &eob);
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n_coeffs += 8 * 2;
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||
|
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}
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||
|
|
|
||
|
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// Accumulate EOB
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||
|
|
*eob_ptr = accumulate_eob(eob);
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||
|
|
}
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