c7449b482c
Started from vp9_quantize_fp_sse2 and tweaked to use avx2. Change-Id: Ic2da50cc9d73896c7ef2f3cd3db5b1c5d7795b8b
78 lines
3.2 KiB
C
78 lines
3.2 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 <emmintrin.h>
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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static INLINE void load_b_values(const int16_t *zbin_ptr, __m128i *zbin,
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const int16_t *round_ptr, __m128i *round,
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const int16_t *quant_ptr, __m128i *quant,
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const int16_t *dequant_ptr, __m128i *dequant,
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const int16_t *shift_ptr, __m128i *shift) {
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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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*zbin = _mm_sub_epi16(*zbin, _mm_set1_epi16(1));
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*dequant = _mm_load_si128((const __m128i *)dequant_ptr);
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*shift = _mm_load_si128((const __m128i *)shift_ptr);
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}
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// With ssse3 and later abs() and sign() are preferred.
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static INLINE __m128i invert_sign_sse2(__m128i a, __m128i sign) {
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a = _mm_xor_si128(a, sign);
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return _mm_sub_epi16(a, sign);
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}
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static INLINE void calculate_qcoeff(__m128i *coeff, const __m128i round,
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const __m128i quant, const __m128i shift) {
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__m128i tmp, qcoeff;
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qcoeff = _mm_adds_epi16(*coeff, round);
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tmp = _mm_mulhi_epi16(qcoeff, quant);
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qcoeff = _mm_add_epi16(tmp, qcoeff);
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*coeff = _mm_mulhi_epi16(qcoeff, shift);
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}
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static INLINE __m128i calculate_dqcoeff(__m128i qcoeff, __m128i dequant) {
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return _mm_mullo_epi16(qcoeff, dequant);
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}
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// Scan 16 values for eob reference in scan_ptr. Use masks (-1) from comparing
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// to zbin to add 1 to the index in 'scan'.
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static INLINE __m128i scan_for_eob(__m128i *coeff0, __m128i *coeff1,
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const __m128i zbin_mask0,
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const __m128i zbin_mask1,
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const int16_t *scan_ptr, const int index,
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const __m128i zero) {
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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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__m128i scan0 = _mm_load_si128((const __m128i *)(scan_ptr + index));
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__m128i scan1 = _mm_load_si128((const __m128i *)(scan_ptr + index + 8));
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__m128i eob0, eob1;
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// Add one to convert from indices to counts
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scan0 = _mm_sub_epi16(scan0, zbin_mask0);
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scan1 = _mm_sub_epi16(scan1, zbin_mask1);
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eob0 = _mm_andnot_si128(zero_coeff0, scan0);
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eob1 = _mm_andnot_si128(zero_coeff1, scan1);
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return _mm_max_epi16(eob0, eob1);
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}
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static INLINE int16_t accumulate_eob(__m128i eob) {
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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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return _mm_extract_epi16(eob, 1);
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}
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