diff options
Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/x86/quantize_ssse3.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/quantize_ssse3.c b/third_party/aom/aom_dsp/x86/quantize_ssse3.c new file mode 100644 index 0000000000..25980a055a --- /dev/null +++ b/third_party/aom/aom_dsp/x86/quantize_ssse3.c @@ -0,0 +1,192 @@ +/* + * 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); +} |