diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/quantize_sse2.c')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/quantize_sse2.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/quantize_sse2.c b/third_party/aom/aom_dsp/x86/quantize_sse2.c new file mode 100644 index 000000000..890c1f01e --- /dev/null +++ b/third_party/aom/aom_dsp/x86/quantize_sse2.c @@ -0,0 +1,249 @@ +/* + * 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 "./aom_dsp_rtcd.h" +#include "aom/aom_integer.h" + +static INLINE __m128i load_coefficients(const tran_low_t *coeff_ptr) { +#if CONFIG_HIGHBITDEPTH + 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); +#endif +} + +static INLINE void store_coefficients(__m128i coeff_vals, + tran_low_t *coeff_ptr) { +#if CONFIG_HIGHBITDEPTH + __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); +#endif +} + +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; + } +} |