| /* |
| * 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 "./av1_rtcd.h" |
| #include "aom/aom_integer.h" |
| |
| static INLINE void read_coeff(const tran_low_t *coeff, intptr_t offset, |
| __m128i *c0, __m128i *c1) { |
| const tran_low_t *addr = coeff + offset; |
| #if CONFIG_HIGHBITDEPTH |
| const __m128i x0 = _mm_load_si128((const __m128i *)addr); |
| const __m128i x1 = _mm_load_si128((const __m128i *)addr + 1); |
| const __m128i x2 = _mm_load_si128((const __m128i *)addr + 2); |
| const __m128i x3 = _mm_load_si128((const __m128i *)addr + 3); |
| *c0 = _mm_packs_epi32(x0, x1); |
| *c1 = _mm_packs_epi32(x2, x3); |
| #else |
| *c0 = _mm_load_si128((const __m128i *)addr); |
| *c1 = _mm_load_si128((const __m128i *)addr + 1); |
| #endif |
| } |
| |
| static INLINE void write_qcoeff(const __m128i *qc0, const __m128i *qc1, |
| tran_low_t *qcoeff, intptr_t offset) { |
| tran_low_t *addr = qcoeff + offset; |
| #if CONFIG_HIGHBITDEPTH |
| const __m128i zero = _mm_setzero_si128(); |
| __m128i sign_bits = _mm_cmplt_epi16(*qc0, zero); |
| __m128i y0 = _mm_unpacklo_epi16(*qc0, sign_bits); |
| __m128i y1 = _mm_unpackhi_epi16(*qc0, sign_bits); |
| _mm_store_si128((__m128i *)addr, y0); |
| _mm_store_si128((__m128i *)addr + 1, y1); |
| |
| sign_bits = _mm_cmplt_epi16(*qc1, zero); |
| y0 = _mm_unpacklo_epi16(*qc1, sign_bits); |
| y1 = _mm_unpackhi_epi16(*qc1, sign_bits); |
| _mm_store_si128((__m128i *)addr + 2, y0); |
| _mm_store_si128((__m128i *)addr + 3, y1); |
| #else |
| _mm_store_si128((__m128i *)addr, *qc0); |
| _mm_store_si128((__m128i *)addr + 1, *qc1); |
| #endif |
| } |
| |
| static INLINE void write_zero(tran_low_t *qcoeff, intptr_t offset) { |
| const __m128i zero = _mm_setzero_si128(); |
| tran_low_t *addr = qcoeff + offset; |
| #if CONFIG_HIGHBITDEPTH |
| _mm_store_si128((__m128i *)addr, zero); |
| _mm_store_si128((__m128i *)addr + 1, zero); |
| _mm_store_si128((__m128i *)addr + 2, zero); |
| _mm_store_si128((__m128i *)addr + 3, zero); |
| #else |
| _mm_store_si128((__m128i *)addr, zero); |
| _mm_store_si128((__m128i *)addr + 1, zero); |
| #endif |
| } |
| |
| void av1_quantize_fp_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; |
| __m128i thr; |
| int16_t nzflag; |
| (void)scan_ptr; |
| (void)zbin_ptr; |
| (void)quant_shift_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 round, quant, dequant; |
| { |
| __m128i coeff0, coeff1; |
| |
| // Setup global values |
| { |
| round = _mm_load_si128((const __m128i *)round_ptr); |
| quant = _mm_load_si128((const __m128i *)quant_ptr); |
| dequant = _mm_load_si128((const __m128i *)dequant_ptr); |
| } |
| |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| // Do DC and first 15 AC |
| read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1); |
| |
| // 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); |
| |
| 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); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs); |
| } |
| |
| { |
| // 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; |
| } |
| |
| thr = _mm_srai_epi16(dequant, 1); |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| __m128i coeff0, coeff1; |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| |
| read_coeff(coeff_ptr, n_coeffs, &coeff0, &coeff1); |
| |
| // 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); |
| |
| nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) | |
| _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr)); |
| |
| if (nzflag) { |
| qcoeff0 = _mm_adds_epi16(qcoeff0, round); |
| qcoeff1 = _mm_adds_epi16(qcoeff1, round); |
| qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); |
| qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| write_qcoeff(&qcoeff0, &qcoeff1, qcoeff_ptr, n_coeffs); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| write_qcoeff(&coeff0, &coeff1, dqcoeff_ptr, n_coeffs); |
| } else { |
| write_zero(qcoeff_ptr, n_coeffs); |
| write_zero(dqcoeff_ptr, n_coeffs); |
| } |
| } |
| |
| if (nzflag) { |
| // 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 { |
| write_zero(dqcoeff_ptr, n_coeffs); |
| write_zero(qcoeff_ptr, n_coeffs); |
| n_coeffs += 8 * 2; |
| } while (n_coeffs < 0); |
| *eob_ptr = 0; |
| } |
| } |
