From d2499ead93dc4298c0882fe98902acb1b5209f99 Mon Sep 17 00:00:00 2001 From: trav90 Date: Fri, 19 Oct 2018 23:05:00 -0500 Subject: Update libaom to commit ID 1e227d41f0616de9548a673a83a21ef990b62591 --- third_party/aom/aom_dsp/x86/quantize_x86.h | 77 ++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 third_party/aom/aom_dsp/x86/quantize_x86.h (limited to 'third_party/aom/aom_dsp/x86/quantize_x86.h') diff --git a/third_party/aom/aom_dsp/x86/quantize_x86.h b/third_party/aom/aom_dsp/x86/quantize_x86.h new file mode 100644 index 000000000..4eed7dd29 --- /dev/null +++ b/third_party/aom/aom_dsp/x86/quantize_x86.h @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2018, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include + +#include "aom/aom_integer.h" + +static INLINE void load_b_values(const int16_t *zbin_ptr, __m128i *zbin, + const int16_t *round_ptr, __m128i *round, + const int16_t *quant_ptr, __m128i *quant, + const int16_t *dequant_ptr, __m128i *dequant, + const int16_t *shift_ptr, __m128i *shift) { + *zbin = _mm_load_si128((const __m128i *)zbin_ptr); + *round = _mm_load_si128((const __m128i *)round_ptr); + *quant = _mm_load_si128((const __m128i *)quant_ptr); + *zbin = _mm_sub_epi16(*zbin, _mm_set1_epi16(1)); + *dequant = _mm_load_si128((const __m128i *)dequant_ptr); + *shift = _mm_load_si128((const __m128i *)shift_ptr); +} + +// With ssse3 and later abs() and sign() are preferred. +static INLINE __m128i invert_sign_sse2(__m128i a, __m128i sign) { + a = _mm_xor_si128(a, sign); + return _mm_sub_epi16(a, sign); +} + +static INLINE void calculate_qcoeff(__m128i *coeff, const __m128i round, + const __m128i quant, const __m128i shift) { + __m128i tmp, qcoeff; + qcoeff = _mm_adds_epi16(*coeff, round); + tmp = _mm_mulhi_epi16(qcoeff, quant); + qcoeff = _mm_add_epi16(tmp, qcoeff); + *coeff = _mm_mulhi_epi16(qcoeff, shift); +} + +static INLINE __m128i calculate_dqcoeff(__m128i qcoeff, __m128i dequant) { + return _mm_mullo_epi16(qcoeff, dequant); +} + +// Scan 16 values for eob reference in scan_ptr. Use masks (-1) from comparing +// to zbin to add 1 to the index in 'scan'. +static INLINE __m128i scan_for_eob(__m128i *coeff0, __m128i *coeff1, + const __m128i zbin_mask0, + const __m128i zbin_mask1, + const int16_t *scan_ptr, const int index, + const __m128i zero) { + const __m128i zero_coeff0 = _mm_cmpeq_epi16(*coeff0, zero); + const __m128i zero_coeff1 = _mm_cmpeq_epi16(*coeff1, zero); + __m128i scan0 = _mm_load_si128((const __m128i *)(scan_ptr + index)); + __m128i scan1 = _mm_load_si128((const __m128i *)(scan_ptr + index + 8)); + __m128i eob0, eob1; + // Add one to convert from indices to counts + scan0 = _mm_sub_epi16(scan0, zbin_mask0); + scan1 = _mm_sub_epi16(scan1, zbin_mask1); + eob0 = _mm_andnot_si128(zero_coeff0, scan0); + eob1 = _mm_andnot_si128(zero_coeff1, scan1); + return _mm_max_epi16(eob0, eob1); +} + +static INLINE int16_t accumulate_eob(__m128i eob) { + __m128i eob_shuffled; + eob_shuffled = _mm_shuffle_epi32(eob, 0xe); + eob = _mm_max_epi16(eob, eob_shuffled); + eob_shuffled = _mm_shufflelo_epi16(eob, 0xe); + eob = _mm_max_epi16(eob, eob_shuffled); + eob_shuffled = _mm_shufflelo_epi16(eob, 0x1); + eob = _mm_max_epi16(eob, eob_shuffled); + return _mm_extract_epi16(eob, 1); +} -- cgit v1.2.3