441 lines
17 KiB
C
441 lines
17 KiB
C
/*
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* Copyright (c) 2017 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <assert.h>
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#include <immintrin.h> // AVX2
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#include "./vp9_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#include "vpx_dsp/x86/bitdepth_conversion_avx2.h"
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#include "vpx_dsp/x86/quantize_sse2.h"
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// Zero fill 8 positions in the output buffer.
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static VPX_FORCE_INLINE void store_zero_tran_low(tran_low_t *a) {
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const __m256i zero = _mm256_setzero_si256();
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#if CONFIG_VP9_HIGHBITDEPTH
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_mm256_storeu_si256((__m256i *)(a), zero);
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_mm256_storeu_si256((__m256i *)(a + 8), zero);
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#else
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_mm256_storeu_si256((__m256i *)(a), zero);
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#endif
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}
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static VPX_FORCE_INLINE void load_fp_values_avx2(
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const int16_t *round_ptr, __m256i *round, const int16_t *quant_ptr,
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__m256i *quant, const int16_t *dequant_ptr, __m256i *dequant) {
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*round = _mm256_castsi128_si256(_mm_load_si128((const __m128i *)round_ptr));
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*round = _mm256_permute4x64_epi64(*round, 0x54);
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*quant = _mm256_castsi128_si256(_mm_load_si128((const __m128i *)quant_ptr));
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*quant = _mm256_permute4x64_epi64(*quant, 0x54);
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*dequant =
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_mm256_castsi128_si256(_mm_load_si128((const __m128i *)dequant_ptr));
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*dequant = _mm256_permute4x64_epi64(*dequant, 0x54);
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}
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static VPX_FORCE_INLINE __m256i get_max_lane_eob(const int16_t *iscan,
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__m256i v_eobmax,
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__m256i v_mask) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const __m256i v_iscan = _mm256_permute4x64_epi64(
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_mm256_loadu_si256((const __m256i *)iscan), 0xD8);
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#else
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const __m256i v_iscan = _mm256_loadu_si256((const __m256i *)iscan);
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#endif
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const __m256i v_nz_iscan = _mm256_and_si256(v_iscan, v_mask);
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return _mm256_max_epi16(v_eobmax, v_nz_iscan);
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}
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static VPX_FORCE_INLINE uint16_t get_max_eob(__m256i eob256) {
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const __m256i eob_lo = eob256;
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// Copy upper 128 to lower 128
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const __m256i eob_hi = _mm256_permute2x128_si256(eob256, eob256, 0X81);
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__m256i eob = _mm256_max_epi16(eob_lo, eob_hi);
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__m256i eob_s = _mm256_shuffle_epi32(eob, 0xe);
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eob = _mm256_max_epi16(eob, eob_s);
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eob_s = _mm256_shufflelo_epi16(eob, 0xe);
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eob = _mm256_max_epi16(eob, eob_s);
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eob_s = _mm256_shufflelo_epi16(eob, 1);
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eob = _mm256_max_epi16(eob, eob_s);
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#if defined(_MSC_VER) && (_MSC_VER < 1910)
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return _mm_cvtsi128_si32(_mm256_extracti128_si256(eob, 0)) & 0xffff;
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#else
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return (uint16_t)_mm256_extract_epi16(eob, 0);
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#endif
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}
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static VPX_FORCE_INLINE void quantize_fp_16(
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const __m256i *round, const __m256i *quant, const __m256i *dequant,
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const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) {
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const __m256i coeff = load_tran_low(coeff_ptr);
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const __m256i abs_coeff = _mm256_abs_epi16(coeff);
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const int32_t nzflag =
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_mm256_movemask_epi8(_mm256_cmpgt_epi16(abs_coeff, *thr));
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if (nzflag) {
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const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round);
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const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant);
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const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff);
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const __m256i dqcoeff = _mm256_mullo_epi16(qcoeff, *dequant);
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const __m256i nz_mask =
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_mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256());
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store_tran_low(qcoeff, qcoeff_ptr);
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store_tran_low(dqcoeff, dqcoeff_ptr);
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*eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask);
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} else {
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store_zero_tran_low(qcoeff_ptr);
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store_zero_tran_low(dqcoeff_ptr);
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}
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}
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void vp9_quantize_fp_avx2(const tran_low_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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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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__m256i round, quant, dequant, thr;
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__m256i eob_max = _mm256_setzero_si256();
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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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load_fp_values_avx2(round_ptr, &round, quant_ptr, &quant, dequant_ptr,
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&dequant);
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thr = _mm256_setzero_si256();
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quantize_fp_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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n_coeffs += 8 * 2;
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// remove dc constants
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dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31);
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quant = _mm256_permute2x128_si256(quant, quant, 0x31);
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round = _mm256_permute2x128_si256(round, round, 0x31);
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thr = _mm256_srai_epi16(dequant, 1);
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// AC only loop
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while (n_coeffs < 0) {
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quantize_fp_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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n_coeffs += 8 * 2;
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}
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*eob_ptr = get_max_eob(eob_max);
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}
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// Enable this flag when matching the optimized code to
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// vp9_quantize_fp_32x32_c(). Disabled, the optimized code will match the
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// existing ssse3 code and quantize_fp_32x32_nz_c().
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//
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// #define MATCH_VP9_QUANTIZE_FP_32X32_C
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#ifndef MATCH_VP9_QUANTIZE_FP_32X32_C
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static VPX_FORCE_INLINE void quantize_fp_32x32_16_no_nzflag(
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const __m256i *round, const __m256i *quant, const __m256i *dequant,
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const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) {
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const __m256i coeff = load_tran_low(coeff_ptr);
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const __m256i abs_coeff = _mm256_abs_epi16(coeff);
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const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round);
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const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant);
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const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff);
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const __m256i abs_dqcoeff =
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_mm256_srli_epi16(_mm256_mullo_epi16(abs_qcoeff, *dequant), 1);
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const __m256i dqcoeff = _mm256_sign_epi16(abs_dqcoeff, coeff);
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const __m256i nz_mask =
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_mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256());
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store_tran_low(qcoeff, qcoeff_ptr);
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store_tran_low(dqcoeff, dqcoeff_ptr);
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*eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask);
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(void)thr;
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}
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#endif
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static VPX_FORCE_INLINE void quantize_fp_32x32_16(
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const __m256i *round, const __m256i *quant, const __m256i *dequant,
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const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) {
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const __m256i coeff = load_tran_low(coeff_ptr);
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const __m256i abs_coeff = _mm256_abs_epi16(coeff);
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const __m256i thr_mask = _mm256_cmpgt_epi16(abs_coeff, *thr);
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const int32_t nzflag = _mm256_movemask_epi8(thr_mask);
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if (nzflag) {
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#ifdef MATCH_VP9_QUANTIZE_FP_32X32_C
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const __m256i tmp_rnd =
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_mm256_and_si256(_mm256_adds_epi16(abs_coeff, *round), thr_mask);
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#else
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const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round);
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#endif
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const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant);
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const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff);
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const __m256i abs_dqcoeff =
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_mm256_srli_epi16(_mm256_mullo_epi16(abs_qcoeff, *dequant), 1);
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const __m256i dqcoeff = _mm256_sign_epi16(abs_dqcoeff, coeff);
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const __m256i nz_mask =
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_mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256());
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store_tran_low(qcoeff, qcoeff_ptr);
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store_tran_low(dqcoeff, dqcoeff_ptr);
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*eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask);
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} else {
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store_zero_tran_low(qcoeff_ptr);
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store_zero_tran_low(dqcoeff_ptr);
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}
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}
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void vp9_quantize_fp_32x32_avx2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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const int16_t *round_ptr,
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const int16_t *quant_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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__m256i round, quant, dequant, thr;
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__m256i eob_max = _mm256_setzero_si256();
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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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load_fp_values_avx2(round_ptr, &round, quant_ptr, &quant, dequant_ptr,
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&dequant);
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thr = _mm256_srli_epi16(dequant, 2);
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quant = _mm256_slli_epi16(quant, 1);
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{
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const __m256i rnd = _mm256_set1_epi16((int16_t)1);
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round = _mm256_add_epi16(round, rnd);
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round = _mm256_srai_epi16(round, 1);
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}
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#ifdef MATCH_VP9_QUANTIZE_FP_32X32_C
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// Subtracting 1 here eliminates a _mm256_cmpeq_epi16() instruction when
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// calculating the zbin mask.
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thr = _mm256_sub_epi16(thr, _mm256_set1_epi16(1));
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quantize_fp_32x32_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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#else
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quantize_fp_32x32_16_no_nzflag(
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&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, iscan + n_coeffs,
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qcoeff_ptr + n_coeffs, dqcoeff_ptr + n_coeffs, &eob_max);
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#endif
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n_coeffs += 8 * 2;
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// remove dc constants
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dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31);
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quant = _mm256_permute2x128_si256(quant, quant, 0x31);
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round = _mm256_permute2x128_si256(round, round, 0x31);
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thr = _mm256_permute2x128_si256(thr, thr, 0x31);
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// AC only loop
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while (n_coeffs < 0) {
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quantize_fp_32x32_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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n_coeffs += 8 * 2;
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}
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*eob_ptr = get_max_eob(eob_max);
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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static VPX_FORCE_INLINE __m256i mm256_mul_shift_epi32_logscale(const __m256i *x,
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const __m256i *y,
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int log_scale) {
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__m256i prod_lo = _mm256_mul_epi32(*x, *y);
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__m256i prod_hi = _mm256_srli_epi64(*x, 32);
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const __m256i mult_hi = _mm256_srli_epi64(*y, 32);
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const __m256i mask = _mm256_set_epi32(0, -1, 0, -1, 0, -1, 0, -1);
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prod_hi = _mm256_mul_epi32(prod_hi, mult_hi);
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prod_lo = _mm256_srli_epi64(prod_lo, 16 - log_scale);
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prod_lo = _mm256_and_si256(prod_lo, mask);
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prod_hi = _mm256_srli_epi64(prod_hi, 16 - log_scale);
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prod_hi = _mm256_slli_epi64(prod_hi, 32);
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return _mm256_or_si256(prod_lo, prod_hi);
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}
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static VPX_FORCE_INLINE __m256i highbd_init_256(const int16_t *val_ptr) {
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const __m128i v = _mm_load_si128((const __m128i *)val_ptr);
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const __m128i zero = _mm_setzero_si128();
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const __m128i dc = _mm_unpacklo_epi16(v, zero);
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const __m128i ac = _mm_unpackhi_epi16(v, zero);
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return _mm256_insertf128_si256(_mm256_castsi128_si256(dc), ac, 1);
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}
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static VPX_FORCE_INLINE void highbd_load_fp_values(
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const int16_t *round_ptr, __m256i *round, const int16_t *quant_ptr,
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__m256i *quant, const int16_t *dequant_ptr, __m256i *dequant) {
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*round = highbd_init_256(round_ptr);
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*quant = highbd_init_256(quant_ptr);
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*dequant = highbd_init_256(dequant_ptr);
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}
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static VPX_FORCE_INLINE __m256i highbd_get_max_lane_eob(
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const int16_t *iscan_ptr, __m256i eobmax, __m256i nz_mask) {
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const __m256i packed_nz_mask = _mm256_packs_epi32(nz_mask, nz_mask);
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const __m256i packed_nz_mask_perm =
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_mm256_permute4x64_epi64(packed_nz_mask, 0xD8);
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const __m256i iscan =
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_mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)iscan_ptr));
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const __m256i nz_iscan = _mm256_and_si256(iscan, packed_nz_mask_perm);
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return _mm256_max_epi16(eobmax, nz_iscan);
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}
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static VPX_FORCE_INLINE void highbd_quantize_fp(
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const __m256i *round, const __m256i *quant, const __m256i *dequant,
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const tran_low_t *coeff_ptr, const int16_t *iscan_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob) {
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const __m256i coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr);
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const __m256i abs_coeff = _mm256_abs_epi32(coeff);
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const __m256i tmp_rnd = _mm256_add_epi32(abs_coeff, *round);
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const __m256i abs_q = mm256_mul_shift_epi32_logscale(&tmp_rnd, quant, 0);
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const __m256i abs_dq = _mm256_mullo_epi32(abs_q, *dequant);
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const __m256i q = _mm256_sign_epi32(abs_q, coeff);
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const __m256i dq = _mm256_sign_epi32(abs_dq, coeff);
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const __m256i nz_mask = _mm256_cmpgt_epi32(abs_q, _mm256_setzero_si256());
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_mm256_storeu_si256((__m256i *)qcoeff_ptr, q);
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_mm256_storeu_si256((__m256i *)dqcoeff_ptr, dq);
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*eob = highbd_get_max_lane_eob(iscan_ptr, *eob, nz_mask);
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}
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void vp9_highbd_quantize_fp_avx2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
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const int16_t *round_ptr,
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const int16_t *quant_ptr,
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tran_low_t *qcoeff_ptr,
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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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const int step = 8;
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__m256i round, quant, dequant;
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__m256i eob_max = _mm256_setzero_si256();
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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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highbd_load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr,
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&dequant);
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highbd_quantize_fp(&round, &quant, &dequant, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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n_coeffs += step;
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|
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// remove dc constants
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dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31);
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quant = _mm256_permute2x128_si256(quant, quant, 0x31);
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round = _mm256_permute2x128_si256(round, round, 0x31);
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|
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// AC only loop
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while (n_coeffs < 0) {
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highbd_quantize_fp(&round, &quant, &dequant, coeff_ptr + n_coeffs,
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iscan + n_coeffs, qcoeff_ptr + n_coeffs,
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dqcoeff_ptr + n_coeffs, &eob_max);
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n_coeffs += step;
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}
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|
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*eob_ptr = get_max_eob(eob_max);
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}
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|
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static VPX_FORCE_INLINE void highbd_quantize_fp_32x32(
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const __m256i *round, const __m256i *quant, const __m256i *dequant,
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const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr,
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tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob) {
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const __m256i coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr);
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const __m256i abs_coeff = _mm256_abs_epi32(coeff);
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const __m256i thr_mask = _mm256_cmpgt_epi32(abs_coeff, *thr);
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const __m256i tmp_rnd =
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_mm256_and_si256(_mm256_add_epi32(abs_coeff, *round), thr_mask);
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const __m256i abs_q = mm256_mul_shift_epi32_logscale(&tmp_rnd, quant, 0);
|
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const __m256i abs_dq =
|
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_mm256_srli_epi32(_mm256_mullo_epi32(abs_q, *dequant), 1);
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const __m256i q = _mm256_sign_epi32(abs_q, coeff);
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const __m256i dq = _mm256_sign_epi32(abs_dq, coeff);
|
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const __m256i nz_mask = _mm256_cmpgt_epi32(abs_q, _mm256_setzero_si256());
|
|
|
|
_mm256_storeu_si256((__m256i *)qcoeff_ptr, q);
|
|
_mm256_storeu_si256((__m256i *)dqcoeff_ptr, dq);
|
|
|
|
*eob = highbd_get_max_lane_eob(iscan_ptr, *eob, nz_mask);
|
|
}
|
|
|
|
void vp9_highbd_quantize_fp_32x32_avx2(
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|
const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *round_ptr,
|
|
const int16_t *quant_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
|
|
const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan,
|
|
const int16_t *iscan) {
|
|
const int step = 8;
|
|
__m256i round, quant, dequant, thr;
|
|
__m256i eob_max = _mm256_setzero_si256();
|
|
(void)scan;
|
|
|
|
coeff_ptr += n_coeffs;
|
|
iscan += n_coeffs;
|
|
qcoeff_ptr += n_coeffs;
|
|
dqcoeff_ptr += n_coeffs;
|
|
n_coeffs = -n_coeffs;
|
|
|
|
// Setup global values
|
|
highbd_load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr,
|
|
&dequant);
|
|
thr = _mm256_srli_epi32(dequant, 2);
|
|
// Subtracting 1 here eliminates a _mm256_cmpeq_epi32() instruction when
|
|
// calculating the zbin mask.
|
|
thr = _mm256_sub_epi32(thr, _mm256_set1_epi32(1));
|
|
quant = _mm256_slli_epi32(quant, 1);
|
|
round = _mm256_srai_epi32(_mm256_add_epi32(round, _mm256_set1_epi32(1)), 1);
|
|
|
|
highbd_quantize_fp_32x32(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs,
|
|
iscan + n_coeffs, qcoeff_ptr + n_coeffs,
|
|
dqcoeff_ptr + n_coeffs, &eob_max);
|
|
|
|
n_coeffs += step;
|
|
|
|
// remove dc constants
|
|
dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31);
|
|
quant = _mm256_permute2x128_si256(quant, quant, 0x31);
|
|
round = _mm256_permute2x128_si256(round, round, 0x31);
|
|
thr = _mm256_permute2x128_si256(thr, thr, 0x31);
|
|
|
|
// AC only loop
|
|
while (n_coeffs < 0) {
|
|
highbd_quantize_fp_32x32(
|
|
&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, iscan + n_coeffs,
|
|
qcoeff_ptr + n_coeffs, dqcoeff_ptr + n_coeffs, &eob_max);
|
|
n_coeffs += step;
|
|
}
|
|
|
|
*eob_ptr = get_max_eob(eob_max);
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|