156 строки
5.9 KiB
C
156 строки
5.9 KiB
C
/*
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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 "aom_dsp/aom_dsp_common.h"
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#include "aom_mem/aom_mem.h"
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#include "aom_ports/mem.h"
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#if CONFIG_AOM_HIGHBITDEPTH
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void aom_highbd_quantize_b_sse2(const tran_low_t *coeff_ptr, intptr_t count,
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int skip_block, const int16_t *zbin_ptr,
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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, const int16_t *iscan) {
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int i, j, non_zero_regs = (int)count / 4, eob_i = -1;
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__m128i zbins[2];
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__m128i nzbins[2];
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zbins[0] = _mm_set_epi32((int)zbin_ptr[1], (int)zbin_ptr[1], (int)zbin_ptr[1],
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(int)zbin_ptr[0]);
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zbins[1] = _mm_set1_epi32((int)zbin_ptr[1]);
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nzbins[0] = _mm_setzero_si128();
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nzbins[1] = _mm_setzero_si128();
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nzbins[0] = _mm_sub_epi32(nzbins[0], zbins[0]);
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nzbins[1] = _mm_sub_epi32(nzbins[1], zbins[1]);
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(void)scan;
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memset(qcoeff_ptr, 0, count * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, count * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = ((int)count / 4) - 1; i >= 0; i--) {
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__m128i coeffs, cmp1, cmp2;
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int test;
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coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4));
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cmp1 = _mm_cmplt_epi32(coeffs, zbins[i != 0]);
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cmp2 = _mm_cmpgt_epi32(coeffs, nzbins[i != 0]);
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cmp1 = _mm_and_si128(cmp1, cmp2);
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test = _mm_movemask_epi8(cmp1);
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if (test == 0xffff)
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non_zero_regs--;
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else
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break;
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}
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// Quantization pass:
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for (i = 0; i < non_zero_regs; i++) {
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__m128i coeffs, coeffs_sign, tmp1, tmp2;
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int test;
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int abs_coeff[4];
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int coeff_sign[4];
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coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4));
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coeffs_sign = _mm_srai_epi32(coeffs, 31);
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coeffs = _mm_sub_epi32(_mm_xor_si128(coeffs, coeffs_sign), coeffs_sign);
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tmp1 = _mm_cmpgt_epi32(coeffs, zbins[i != 0]);
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tmp2 = _mm_cmpeq_epi32(coeffs, zbins[i != 0]);
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tmp1 = _mm_or_si128(tmp1, tmp2);
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test = _mm_movemask_epi8(tmp1);
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_mm_storeu_si128((__m128i *)abs_coeff, coeffs);
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_mm_storeu_si128((__m128i *)coeff_sign, coeffs_sign);
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for (j = 0; j < 4; j++) {
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if (test & (1 << (4 * j))) {
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int k = 4 * i + j;
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const int64_t tmp3 = abs_coeff[j] + round_ptr[k != 0];
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const int64_t tmp4 = ((tmp3 * quant_ptr[k != 0]) >> 16) + tmp3;
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const uint32_t abs_qcoeff =
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(uint32_t)((tmp4 * quant_shift_ptr[k != 0]) >> 16);
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qcoeff_ptr[k] = (int)(abs_qcoeff ^ coeff_sign[j]) - coeff_sign[j];
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dqcoeff_ptr[k] = qcoeff_ptr[k] * dequant_ptr[k != 0];
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if (abs_qcoeff) eob_i = iscan[k] > eob_i ? iscan[k] : eob_i;
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}
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}
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}
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}
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*eob_ptr = eob_i + 1;
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}
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void aom_highbd_quantize_b_32x32_sse2(
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const tran_low_t *coeff_ptr, intptr_t n_coeffs, int skip_block,
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const int16_t *zbin_ptr, 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, uint16_t *eob_ptr,
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const int16_t *scan, const int16_t *iscan) {
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__m128i zbins[2];
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__m128i nzbins[2];
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int idx = 0;
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int idx_arr[1024];
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int i, eob = -1;
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const int zbin0_tmp = ROUND_POWER_OF_TWO(zbin_ptr[0], 1);
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const int zbin1_tmp = ROUND_POWER_OF_TWO(zbin_ptr[1], 1);
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(void)scan;
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zbins[0] = _mm_set_epi32(zbin1_tmp, zbin1_tmp, zbin1_tmp, zbin0_tmp);
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zbins[1] = _mm_set1_epi32(zbin1_tmp);
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nzbins[0] = _mm_setzero_si128();
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nzbins[1] = _mm_setzero_si128();
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nzbins[0] = _mm_sub_epi32(nzbins[0], zbins[0]);
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nzbins[1] = _mm_sub_epi32(nzbins[1], zbins[1]);
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memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
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memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
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if (!skip_block) {
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// Pre-scan pass
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for (i = 0; i < n_coeffs / 4; i++) {
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__m128i coeffs, cmp1, cmp2;
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int test;
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coeffs = _mm_load_si128((const __m128i *)(coeff_ptr + i * 4));
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cmp1 = _mm_cmplt_epi32(coeffs, zbins[i != 0]);
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cmp2 = _mm_cmpgt_epi32(coeffs, nzbins[i != 0]);
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cmp1 = _mm_and_si128(cmp1, cmp2);
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test = _mm_movemask_epi8(cmp1);
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if (!(test & 0xf)) idx_arr[idx++] = i * 4;
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if (!(test & 0xf0)) idx_arr[idx++] = i * 4 + 1;
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if (!(test & 0xf00)) idx_arr[idx++] = i * 4 + 2;
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if (!(test & 0xf000)) idx_arr[idx++] = i * 4 + 3;
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}
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// Quantization pass: only process the coefficients selected in
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// pre-scan pass. Note: idx can be zero.
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for (i = 0; i < idx; i++) {
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const int rc = idx_arr[i];
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const int coeff = coeff_ptr[rc];
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const int coeff_sign = (coeff >> 31);
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const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
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const int64_t tmp1 =
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abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
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const int64_t tmp2 = ((tmp1 * quant_ptr[rc != 0]) >> 16) + tmp1;
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const uint32_t abs_qcoeff =
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(uint32_t)((tmp2 * quant_shift_ptr[rc != 0]) >> 15);
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qcoeff_ptr[rc] = (int)(abs_qcoeff ^ coeff_sign) - coeff_sign;
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dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
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if (abs_qcoeff) eob = iscan[idx_arr[i]] > eob ? iscan[idx_arr[i]] : eob;
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}
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}
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*eob_ptr = eob + 1;
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}
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#endif
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