| /* |
| * Copyright (c) 2017 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <assert.h> |
| #include <tmmintrin.h> |
| |
| #include "./vpx_dsp_rtcd.h" |
| #include "vpx/vpx_integer.h" |
| #include "vpx_dsp/x86/bitdepth_conversion_sse2.h" |
| #include "vpx_dsp/x86/quantize_sse2.h" |
| #include "vpx_dsp/x86/quantize_ssse3.h" |
| |
| void vpx_quantize_b_ssse3(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, const int16_t *iscan) { |
| const __m128i zero = _mm_setzero_si128(); |
| int index = 16; |
| |
| __m128i zbin, round, quant, dequant, shift; |
| __m128i coeff0, coeff1; |
| __m128i qcoeff0, qcoeff1; |
| __m128i cmp_mask0, cmp_mask1; |
| __m128i eob, eob0; |
| |
| (void)scan; |
| (void)skip_block; |
| assert(!skip_block); |
| |
| 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); |
| |
| 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. |
| while (index < n_coeffs) { |
| 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); |
| |
| 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); |
| |
| index += 16; |
| } |
| |
| *eob_ptr = accumulate_eob(eob); |
| } |
| |
| void vpx_quantize_b_32x32_ssse3(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, const int16_t *iscan) { |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i one = _mm_set1_epi16(1); |
| 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; |
| (void)n_coeffs; |
| (void)skip_block; |
| assert(!skip_block); |
| |
| // 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); |
| // I suspect this is not technically OK because quant_shift can be up |
| // to 1 << 16 and shifting up again will outrange that, but the test is not |
| // comprehensive enough to catch that and "it's been that way forever" |
| shift = _mm_slli_epi16(shift, 1); |
| |
| // 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_movemask_epi8(all_zero) == 0) { |
| _mm_store_si128((__m128i *)(qcoeff_ptr), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 8), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 8), zero); |
| #if CONFIG_VP9_HIGHBITDEPTH |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 4), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + 12), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 4), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + 12), zero); |
| #endif // CONFIG_HIGHBITDEPTH |
| |
| 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_32x32(qcoeff0, dequant, zero, dqcoeff_ptr); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| calculate_dqcoeff_and_store_32x32(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 < 32 * 32; 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_movemask_epi8(all_zero) == 0) { |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 8), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 8), zero); |
| #if CONFIG_VP9_HIGHBITDEPTH |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 4), zero); |
| _mm_store_si128((__m128i *)(qcoeff_ptr + index + 12), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 4), zero); |
| _mm_store_si128((__m128i *)(dqcoeff_ptr + index + 12), zero); |
| #endif // CONFIG_VP9_HIGHBITDEPTH |
| 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_32x32(qcoeff0, dequant, zero, |
| dqcoeff_ptr + index); |
| calculate_dqcoeff_and_store_32x32(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); |
| } |