| /* |
| * Copyright (c) 2016, 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 <emmintrin.h> |
| #include <xmmintrin.h> |
| |
| #include "config/aom_dsp_rtcd.h" |
| |
| #include "aom/aom_integer.h" |
| |
| static INLINE __m128i load_coefficients(const tran_low_t *coeff_ptr) { |
| if (sizeof(tran_low_t) == 4) { |
| return _mm_setr_epi16((int16_t)coeff_ptr[0], (int16_t)coeff_ptr[1], |
| (int16_t)coeff_ptr[2], (int16_t)coeff_ptr[3], |
| (int16_t)coeff_ptr[4], (int16_t)coeff_ptr[5], |
| (int16_t)coeff_ptr[6], (int16_t)coeff_ptr[7]); |
| } else { |
| return _mm_load_si128((const __m128i *)coeff_ptr); |
| } |
| } |
| |
| static INLINE void store_coefficients(__m128i coeff_vals, |
| tran_low_t *coeff_ptr) { |
| if (sizeof(tran_low_t) == 4) { |
| __m128i one = _mm_set1_epi16(1); |
| __m128i coeff_vals_hi = _mm_mulhi_epi16(coeff_vals, one); |
| __m128i coeff_vals_lo = _mm_mullo_epi16(coeff_vals, one); |
| __m128i coeff_vals_1 = _mm_unpacklo_epi16(coeff_vals_lo, coeff_vals_hi); |
| __m128i coeff_vals_2 = _mm_unpackhi_epi16(coeff_vals_lo, coeff_vals_hi); |
| _mm_store_si128((__m128i *)(coeff_ptr), coeff_vals_1); |
| _mm_store_si128((__m128i *)(coeff_ptr + 4), coeff_vals_2); |
| } else { |
| _mm_store_si128((__m128i *)(coeff_ptr), coeff_vals); |
| } |
| } |
| |
| void aom_quantize_b_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| int skip_block, 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_ptr, |
| const int16_t *iscan_ptr) { |
| __m128i zero; |
| (void)scan_ptr; |
| |
| coeff_ptr += n_coeffs; |
| iscan_ptr += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| zero = _mm_setzero_si128(); |
| if (!skip_block) { |
| __m128i eob; |
| __m128i zbin; |
| __m128i round, quant, dequant, shift; |
| { |
| __m128i coeff0, coeff1; |
| |
| // Setup global values |
| { |
| __m128i pw_1; |
| zbin = _mm_load_si128((const __m128i *)zbin_ptr); |
| round = _mm_load_si128((const __m128i *)round_ptr); |
| quant = _mm_load_si128((const __m128i *)quant_ptr); |
| pw_1 = _mm_set1_epi16(1); |
| zbin = _mm_sub_epi16(zbin, pw_1); |
| dequant = _mm_load_si128((const __m128i *)dequant_ptr); |
| shift = _mm_load_si128((const __m128i *)quant_shift_ptr); |
| } |
| |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| __m128i cmp_mask0, cmp_mask1; |
| // Do DC and first 15 AC |
| coeff0 = load_coefficients(coeff_ptr + n_coeffs); |
| coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8); |
| |
| // Poor man's sign extract |
| coeff0_sign = _mm_srai_epi16(coeff0, 15); |
| coeff1_sign = _mm_srai_epi16(coeff1, 15); |
| qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin); |
| zbin = _mm_unpackhi_epi64(zbin, zbin); // Switch DC to AC |
| cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); |
| qcoeff0 = _mm_adds_epi16(qcoeff0, round); |
| round = _mm_unpackhi_epi64(round, round); |
| qcoeff1 = _mm_adds_epi16(qcoeff1, round); |
| qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); |
| quant = _mm_unpackhi_epi64(quant, quant); |
| qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); |
| qtmp0 = _mm_add_epi16(qtmp0, qcoeff0); |
| qtmp1 = _mm_add_epi16(qtmp1, qcoeff1); |
| qcoeff0 = _mm_mulhi_epi16(qtmp0, shift); |
| shift = _mm_unpackhi_epi64(shift, shift); |
| qcoeff1 = _mm_mulhi_epi16(qtmp1, shift); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| // Mask out zbin threshold coeffs |
| qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0); |
| qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1); |
| |
| store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs); |
| store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| store_coefficients(coeff0, dqcoeff_ptr + n_coeffs); |
| store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8); |
| } |
| |
| { |
| // Scan for eob |
| __m128i zero_coeff0, zero_coeff1; |
| __m128i nzero_coeff0, nzero_coeff1; |
| __m128i iscan0, iscan1; |
| __m128i eob1; |
| zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero); |
| zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero); |
| nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero); |
| nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero); |
| iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs)); |
| iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1); |
| // Add one to convert from indices to counts |
| iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0); |
| iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1); |
| eob = _mm_and_si128(iscan0, nzero_coeff0); |
| eob1 = _mm_and_si128(iscan1, nzero_coeff1); |
| eob = _mm_max_epi16(eob, eob1); |
| } |
| n_coeffs += 8 * 2; |
| } |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| __m128i coeff0, coeff1; |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| __m128i cmp_mask0, cmp_mask1; |
| |
| coeff0 = load_coefficients(coeff_ptr + n_coeffs); |
| coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8); |
| |
| // Poor man's sign extract |
| coeff0_sign = _mm_srai_epi16(coeff0, 15); |
| coeff1_sign = _mm_srai_epi16(coeff1, 15); |
| qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin); |
| cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); |
| qcoeff0 = _mm_adds_epi16(qcoeff0, round); |
| qcoeff1 = _mm_adds_epi16(qcoeff1, round); |
| qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); |
| qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); |
| qtmp0 = _mm_add_epi16(qtmp0, qcoeff0); |
| qtmp1 = _mm_add_epi16(qtmp1, qcoeff1); |
| qcoeff0 = _mm_mulhi_epi16(qtmp0, shift); |
| qcoeff1 = _mm_mulhi_epi16(qtmp1, shift); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| // Mask out zbin threshold coeffs |
| qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0); |
| qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1); |
| |
| store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs); |
| store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| store_coefficients(coeff0, dqcoeff_ptr + n_coeffs); |
| store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8); |
| } |
| |
| { |
| // Scan for eob |
| __m128i zero_coeff0, zero_coeff1; |
| __m128i nzero_coeff0, nzero_coeff1; |
| __m128i iscan0, iscan1; |
| __m128i eob0, eob1; |
| zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero); |
| zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero); |
| nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero); |
| nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero); |
| iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs)); |
| iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1); |
| // Add one to convert from indices to counts |
| iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0); |
| iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1); |
| eob0 = _mm_and_si128(iscan0, nzero_coeff0); |
| eob1 = _mm_and_si128(iscan1, nzero_coeff1); |
| eob0 = _mm_max_epi16(eob0, eob1); |
| eob = _mm_max_epi16(eob, eob0); |
| } |
| n_coeffs += 8 * 2; |
| } |
| |
| // Accumulate 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); |
| *eob_ptr = _mm_extract_epi16(eob, 1); |
| } |
| } else { |
| do { |
| store_coefficients(zero, dqcoeff_ptr + n_coeffs); |
| store_coefficients(zero, dqcoeff_ptr + n_coeffs + 8); |
| store_coefficients(zero, qcoeff_ptr + n_coeffs); |
| store_coefficients(zero, qcoeff_ptr + n_coeffs + 8); |
| n_coeffs += 8 * 2; |
| } while (n_coeffs < 0); |
| *eob_ptr = 0; |
| } |
| } |
