| /* |
| * Copyright (c) 2014 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 <emmintrin.h> |
| #include <xmmintrin.h> |
| |
| #include "./vp10_rtcd.h" |
| #include "vpx/vpx_integer.h" |
| |
| void vp10_quantize_fp_sse2(const int16_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, int16_t* qcoeff_ptr, |
| int16_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 |
| coeff0 = _mm_load_si128((const __m128i*)(coeff_ptr + n_coeffs)); |
| coeff1 = _mm_load_si128((const __m128i*)(coeff_ptr + n_coeffs) + 1); |
| |
| // 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); |
| |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); |
| } |
| |
| { |
| // 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; |
| |
| coeff0 = _mm_load_si128((const __m128i*)(coeff_ptr + n_coeffs)); |
| coeff1 = _mm_load_si128((const __m128i*)(coeff_ptr + n_coeffs) + 1); |
| |
| // 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); |
| |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); |
| } else { |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero); |
| } |
| } |
| |
| 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 { |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero); |
| n_coeffs += 8 * 2; |
| } while (n_coeffs < 0); |
| *eob_ptr = 0; |
| } |
| } |