| /* |
| * Copyright (c) 2019, 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 <assert.h> |
| #include <tmmintrin.h> |
| #include <emmintrin.h> |
| #include <xmmintrin.h> |
| |
| #include "config/aom_dsp_rtcd.h" |
| |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/x86/quantize_x86.h" |
| |
| static INLINE void calculate_qcoeff_64x64(__m128i *coeff, const __m128i round, |
| const __m128i quant, |
| const __m128i *shift) { |
| __m128i tmp, qcoeff, tmp1; |
| qcoeff = _mm_adds_epi16(*coeff, round); |
| tmp = _mm_mulhi_epi16(qcoeff, quant); |
| qcoeff = _mm_add_epi16(tmp, qcoeff); |
| tmp = _mm_mullo_epi16(qcoeff, *shift); |
| tmp = _mm_srli_epi16(tmp, 14); |
| tmp1 = _mm_mulhi_epi16(qcoeff, *shift); |
| tmp1 = _mm_slli_epi16(tmp1, 2); |
| *coeff = _mm_or_si128(tmp, tmp1); |
| } |
| |
| static INLINE void calculate_dqcoeff_and_store_64x64(const __m128i qcoeff, |
| const __m128i dequant, |
| const __m128i zero, |
| tran_low_t *dqcoeff) { |
| // Un-sign to bias rounding like C. |
| const __m128i coeff = _mm_abs_epi16(qcoeff); |
| |
| const __m128i sign_0 = _mm_unpacklo_epi16(zero, qcoeff); |
| const __m128i sign_1 = _mm_unpackhi_epi16(zero, qcoeff); |
| |
| const __m128i low = _mm_mullo_epi16(coeff, dequant); |
| const __m128i high = _mm_mulhi_epi16(coeff, dequant); |
| __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high); |
| __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high); |
| |
| // "Divide" by 4. |
| dqcoeff32_0 = _mm_srli_epi32(dqcoeff32_0, 2); |
| dqcoeff32_1 = _mm_srli_epi32(dqcoeff32_1, 2); |
| |
| dqcoeff32_0 = _mm_sign_epi32(dqcoeff32_0, sign_0); |
| dqcoeff32_1 = _mm_sign_epi32(dqcoeff32_1, sign_1); |
| |
| _mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0); |
| _mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1); |
| } |
| |
| void aom_quantize_b_64x64_ssse3(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const int16_t *zbin_ptr, |
| const int16_t *round_ptr, |
| const int16_t *quant_ptr, |
| const int16_t *quant_shift_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 __m128i zero = _mm_setzero_si128(); |
| const __m128i one = _mm_set1_epi16(1); |
| const __m128i two = _mm_set1_epi16(2); |
| int index; |
| |
| __m128i zbin, round, quant, dequant, shift; |
| __m128i coeff0, coeff1, qcoeff0, qcoeff1; |
| __m128i cmp_mask0, cmp_mask1, all_zero; |
| __m128i eob = zero, eob0; |
| |
| (void)scan; |
| (void)n_coeffs; |
| |
| // Setup global values. |
| zbin = _mm_load_si128((const __m128i *)zbin_ptr); |
| round = _mm_load_si128((const __m128i *)round_ptr); |
| quant = _mm_load_si128((const __m128i *)quant_ptr); |
| dequant = _mm_load_si128((const __m128i *)dequant_ptr); |
| shift = _mm_load_si128((const __m128i *)quant_shift_ptr); |
| |
| // Shift with rounding. |
| zbin = _mm_add_epi16(zbin, two); |
| round = _mm_add_epi16(round, two); |
| zbin = _mm_srli_epi16(zbin, 2); |
| round = _mm_srli_epi16(round, 2); |
| zbin = _mm_sub_epi16(zbin, one); |
| // Do DC and first 15 AC. |
| coeff0 = load_coefficients(coeff_ptr); |
| coeff1 = load_coefficients(coeff_ptr + 8); |
| |
| qcoeff0 = _mm_abs_epi16(coeff0); |
| qcoeff1 = _mm_abs_epi16(coeff1); |
| |
| cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin); |
| zbin = _mm_unpackhi_epi64(zbin, zbin); |
| cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); |
| all_zero = _mm_or_si128(cmp_mask0, cmp_mask1); |
| if (_mm_movemask_epi8(all_zero) == 0) { |
| _mm_store_si128((__m128i *)(qcoeff_ptr), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 4), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 8), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 12), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 4), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 8), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 12), zero); |
| round = _mm_unpackhi_epi64(round, round); |
| quant = _mm_unpackhi_epi64(quant, quant); |
| shift = _mm_unpackhi_epi64(shift, shift); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| } else { |
| calculate_qcoeff_64x64(&qcoeff0, round, quant, &shift); |
| round = _mm_unpackhi_epi64(round, round); |
| quant = _mm_unpackhi_epi64(quant, quant); |
| shift = _mm_unpackhi_epi64(shift, shift); |
| calculate_qcoeff_64x64(&qcoeff1, round, quant, &shift); |
| |
| // Reinsert signs. |
| qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0); |
| qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1); |
| |
| // Mask out zbin threshold coeffs. |
| qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0); |
| qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1); |
| |
| store_coefficients(qcoeff0, qcoeff_ptr); |
| store_coefficients(qcoeff1, qcoeff_ptr + 8); |
| |
| calculate_dqcoeff_and_store_64x64(qcoeff0, dequant, zero, dqcoeff_ptr); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| calculate_dqcoeff_and_store_64x64(qcoeff1, dequant, zero, dqcoeff_ptr + 8); |
| |
| eob = |
| scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero); |
| } |
| |
| // AC only loop. |
| for (index = 16; index < 1024; index += 16) { |
| coeff0 = load_coefficients(coeff_ptr + index); |
| coeff1 = load_coefficients(coeff_ptr + index + 8); |
| |
| qcoeff0 = _mm_abs_epi16(coeff0); |
| qcoeff1 = _mm_abs_epi16(coeff1); |
| |
| cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin); |
| cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); |
| |
| all_zero = _mm_or_si128(cmp_mask0, cmp_mask1); |
| if (_mm_movemask_epi8(all_zero) == 0) { |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 4), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 8), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 12), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 4), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 8), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 12), zero); |
| continue; |
| } |
| calculate_qcoeff_64x64(&qcoeff0, round, quant, &shift); |
| calculate_qcoeff_64x64(&qcoeff1, round, quant, &shift); |
| |
| qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0); |
| qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1); |
| |
| qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0); |
| qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1); |
| |
| store_coefficients(qcoeff0, qcoeff_ptr + index); |
| store_coefficients(qcoeff1, qcoeff_ptr + index + 8); |
| |
| calculate_dqcoeff_and_store_64x64(qcoeff0, dequant, zero, |
| dqcoeff_ptr + index); |
| calculate_dqcoeff_and_store_64x64(qcoeff1, dequant, zero, |
| dqcoeff_ptr + 8 + index); |
| |
| eob0 = scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, index, |
| zero); |
| eob = _mm_max_epi16(eob, eob0); |
| } |
| |
| *eob_ptr = accumulate_eob(eob); |
| } |