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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/x86/aom_quantize_avx.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/aom_quantize_avx.c b/third_party/aom/aom_dsp/x86/aom_quantize_avx.c new file mode 100644 index 0000000000..b2d6d4b76d --- /dev/null +++ b/third_party/aom/aom_dsp/x86/aom_quantize_avx.c @@ -0,0 +1,282 @@ +/* + * Copyright (c) 2020, 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 <immintrin.h> + +#include "config/aom_dsp_rtcd.h" +#include "aom/aom_integer.h" +#include "aom_dsp/x86/bitdepth_conversion_sse2.h" +#include "aom_dsp/x86/quantize_x86.h" + +static INLINE void calculate_dqcoeff_and_store(__m128i qcoeff, __m128i dequant, + tran_low_t *dqcoeff) { + const __m128i low = _mm_mullo_epi16(qcoeff, dequant); + const __m128i high = _mm_mulhi_epi16(qcoeff, dequant); + + const __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high); + const __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high); + + _mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0); + _mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1); +} + +void aom_quantize_b_avx(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 __m256i big_zero = _mm256_setzero_si256(); + int index; + + __m128i zbin, round, quant, dequant, shift; + __m128i coeff0, coeff1; + __m128i qcoeff0, qcoeff1; + __m128i cmp_mask0, cmp_mask1; + __m128i all_zero; + __m128i eob = zero, eob0; + + (void)scan; + + *eob_ptr = 0; + + load_b_values(zbin_ptr, &zbin, round_ptr, &round, quant_ptr, &quant, + dequant_ptr, &dequant, quant_shift_ptr, &shift); + + // Do DC and first 15 AC. + coeff0 = load_tran_low(coeff_ptr); + coeff1 = load_tran_low(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); // Switch DC to AC + cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); + + all_zero = _mm_or_si128(cmp_mask0, cmp_mask1); + if (_mm_test_all_zeros(all_zero, all_zero)) { + _mm256_store_si256((__m256i *)(qcoeff_ptr), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr), big_zero); + _mm256_store_si256((__m256i *)(qcoeff_ptr + 8), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + 8), big_zero); + + if (n_coeffs == 16) return; + + 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(&qcoeff0, round, quant, shift); + round = _mm_unpackhi_epi64(round, round); + quant = _mm_unpackhi_epi64(quant, quant); + shift = _mm_unpackhi_epi64(shift, shift); + calculate_qcoeff(&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_tran_low(qcoeff0, qcoeff_ptr); + store_tran_low(qcoeff1, qcoeff_ptr + 8); + + calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr); + dequant = _mm_unpackhi_epi64(dequant, dequant); + calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + 8); + + eob = + scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero); + } + + // AC only loop. + for (index = 16; index < n_coeffs; index += 16) { + coeff0 = load_tran_low(coeff_ptr + index); + coeff1 = load_tran_low(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_test_all_zeros(all_zero, all_zero)) { + _mm256_store_si256((__m256i *)(qcoeff_ptr + index), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + index), big_zero); + _mm256_store_si256((__m256i *)(qcoeff_ptr + index + 8), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + index + 8), big_zero); + continue; + } + + calculate_qcoeff(&qcoeff0, round, quant, shift); + calculate_qcoeff(&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_tran_low(qcoeff0, qcoeff_ptr + index); + store_tran_low(qcoeff1, qcoeff_ptr + index + 8); + + calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr + index); + calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + index + 8); + + eob0 = scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, index, + zero); + eob = _mm_max_epi16(eob, eob0); + } + + *eob_ptr = accumulate_eob(eob); +} + +void aom_quantize_b_32x32_avx(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 __m256i big_zero = _mm256_setzero_si256(); + int index; + const int log_scale = 1; + + __m128i zbin, round, quant, dequant, shift; + __m128i coeff0, coeff1; + __m128i qcoeff0, qcoeff1; + __m128i cmp_mask0, cmp_mask1; + __m128i all_zero; + __m128i eob = zero, eob0; + + (void)scan; + + // Setup global values. + // The 32x32 halves zbin and round. + zbin = _mm_load_si128((const __m128i *)zbin_ptr); + // Shift with rounding. + zbin = _mm_add_epi16(zbin, one); + zbin = _mm_srli_epi16(zbin, 1); + // x86 has no "greater *or equal*" comparison. Subtract 1 from zbin so + // it is a strict "greater" comparison. + zbin = _mm_sub_epi16(zbin, one); + + round = _mm_load_si128((const __m128i *)round_ptr); + round = _mm_add_epi16(round, one); + round = _mm_srli_epi16(round, 1); + + 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); + + // Do DC and first 15 AC. + coeff0 = load_tran_low(coeff_ptr); + coeff1 = load_tran_low(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); // Switch DC to AC. + cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin); + + all_zero = _mm_or_si128(cmp_mask0, cmp_mask1); + if (_mm_test_all_zeros(all_zero, all_zero)) { + _mm256_store_si256((__m256i *)(qcoeff_ptr), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr), big_zero); + _mm256_store_si256((__m256i *)(qcoeff_ptr + 8), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + 8), big_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_log_scale(&qcoeff0, round, quant, &shift, &log_scale); + round = _mm_unpackhi_epi64(round, round); + quant = _mm_unpackhi_epi64(quant, quant); + shift = _mm_unpackhi_epi64(shift, shift); + calculate_qcoeff_log_scale(&qcoeff1, round, quant, &shift, &log_scale); + + // 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_tran_low(qcoeff0, qcoeff_ptr); + store_tran_low(qcoeff1, qcoeff_ptr + 8); + + calculate_dqcoeff_and_store_log_scale(qcoeff0, dequant, zero, dqcoeff_ptr, + &log_scale); + dequant = _mm_unpackhi_epi64(dequant, dequant); + calculate_dqcoeff_and_store_log_scale(qcoeff1, dequant, zero, + dqcoeff_ptr + 8, &log_scale); + + eob = + scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero); + } + + // AC only loop. + for (index = 16; index < n_coeffs; index += 16) { + coeff0 = load_tran_low(coeff_ptr + index); + coeff1 = load_tran_low(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_test_all_zeros(all_zero, all_zero)) { + _mm256_store_si256((__m256i *)(qcoeff_ptr + index), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + index), big_zero); + _mm256_store_si256((__m256i *)(qcoeff_ptr + index + 8), big_zero); + _mm256_store_si256((__m256i *)(dqcoeff_ptr + index + 8), big_zero); + continue; + } + + calculate_qcoeff_log_scale(&qcoeff0, round, quant, &shift, &log_scale); + calculate_qcoeff_log_scale(&qcoeff1, round, quant, &shift, &log_scale); + + 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_tran_low(qcoeff0, qcoeff_ptr + index); + store_tran_low(qcoeff1, qcoeff_ptr + index + 8); + + calculate_dqcoeff_and_store_log_scale(qcoeff0, dequant, zero, + dqcoeff_ptr + index, &log_scale); + calculate_dqcoeff_and_store_log_scale(qcoeff1, dequant, zero, + dqcoeff_ptr + index + 8, &log_scale); + + eob0 = scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, index, + zero); + eob = _mm_max_epi16(eob, eob0); + } + + *eob_ptr = accumulate_eob(eob); +} |