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Diffstat (limited to 'src/libFLAC/lpc_intrin_neon.c')
| -rw-r--r-- | src/libFLAC/lpc_intrin_neon.c | 1273 |
1 files changed, 1273 insertions, 0 deletions
diff --git a/src/libFLAC/lpc_intrin_neon.c b/src/libFLAC/lpc_intrin_neon.c new file mode 100644 index 0000000..b9945d5 --- /dev/null +++ b/src/libFLAC/lpc_intrin_neon.c @@ -0,0 +1,1273 @@ +/* libFLAC - Free Lossless Audio Codec library + * Copyright (C) 2000-2009 Josh Coalson + * Copyright (C) 2011-2023 Xiph.Org Foundation + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of the Xiph.org Foundation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "private/cpu.h" + +#ifndef FLAC__INTEGER_ONLY_LIBRARY +#ifndef FLAC__NO_ASM +#if defined FLAC__CPU_ARM64 && FLAC__HAS_NEONINTRIN +#include "private/lpc.h" +#include "FLAC/assert.h" +#include "FLAC/format.h" +#include "private/macros.h" +#include <arm_neon.h> + +#if FLAC__HAS_A64NEONINTRIN +void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]) +{ +#undef MAX_LAG +#define MAX_LAG 14 +#include "deduplication/lpc_compute_autocorrelation_intrin_neon.c" +} + +void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]) +{ +#undef MAX_LAG +#define MAX_LAG 10 +#include "deduplication/lpc_compute_autocorrelation_intrin_neon.c" +} + +void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]) +{ +#undef MAX_LAG +#define MAX_LAG 8 +#include "deduplication/lpc_compute_autocorrelation_intrin_neon.c" +} + +#endif /* ifdef FLAC__HAS_A64NEONINTRIN */ + + +#define MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_vec, lane) \ + summ_0 = vmulq_laneq_s32(tmp_vec[0], qlp_coeff_vec, lane); \ + summ_1 = vmulq_laneq_s32(tmp_vec[4], qlp_coeff_vec, lane); \ + summ_2 = vmulq_laneq_s32(tmp_vec[8], qlp_coeff_vec, lane); + + +#define MACC_32BIT_LOOP_UNROOL_3(tmp_vec_ind, qlp_coeff_vec, lane) \ + summ_0 = vmlaq_laneq_s32(summ_0,tmp_vec[tmp_vec_ind] ,qlp_coeff_vec, lane); \ + summ_1 = vmlaq_laneq_s32(summ_1,tmp_vec[tmp_vec_ind+4] ,qlp_coeff_vec, lane); \ + summ_2 = vmlaq_laneq_s32(summ_2,tmp_vec[tmp_vec_ind+8] ,qlp_coeff_vec, lane); + +void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]) +{ + int i; + FLAC__int32 sum; + int32x4_t tmp_vec[20]; + + FLAC__ASSERT(order > 0); + FLAC__ASSERT(order <= 32); + + // Using prologue reads is valid as encoder->private_->local_lpc_compute_residual_from_qlp_coefficients(signal+order,....) + if(order <= 12) { + if(order > 8) { + if(order > 10) { + if (order == 12) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], qlp_coeff[9], qlp_coeff[10], qlp_coeff[11]}; + + tmp_vec[0] = vld1q_s32(data - 12); + tmp_vec[1] = vld1q_s32(data - 11); + tmp_vec[2] = vld1q_s32(data - 10); + tmp_vec[3] = vld1q_s32(data - 9); + tmp_vec[4] = vld1q_s32(data - 8); + tmp_vec[5] = vld1q_s32(data - 7); + tmp_vec[6] = vld1q_s32(data - 6); + tmp_vec[7] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + + tmp_vec[8] = vld1q_s32(data + i - 4); + tmp_vec[9] = vld1q_s32(data+i-3); + tmp_vec[10] = vld1q_s32(data+i-2); + tmp_vec[11] = vld1q_s32(data+i-1); + tmp_vec[12] = vld1q_s32(data+i); + tmp_vec[13] = vld1q_s32(data+i+1); + tmp_vec[14] = vld1q_s32(data+i+2); + tmp_vec[15] = vld1q_s32(data+i+3); + tmp_vec[16] = vld1q_s32(data + i + 4); + tmp_vec[17] = vld1q_s32(data + i + 5); + tmp_vec[18] = vld1q_s32(data + i + 6); + tmp_vec[19] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_2, 3) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 2) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_2, 1) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_2, 0) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 3) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(7, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(10, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(11, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + tmp_vec[6] = tmp_vec[18]; + tmp_vec[7] = tmp_vec[19]; + } + } + + else { /* order == 11 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], qlp_coeff[9], qlp_coeff[10], 0}; + + tmp_vec[0] = vld1q_s32(data - 11); + tmp_vec[1] = vld1q_s32(data - 10); + tmp_vec[2] = vld1q_s32(data - 9); + tmp_vec[3] = vld1q_s32(data - 8); + tmp_vec[4] = vld1q_s32(data - 7); + tmp_vec[5] = vld1q_s32(data - 6); + tmp_vec[6] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[7] = vld1q_s32(data + i - 4); + tmp_vec[8] = vld1q_s32(data + i - 3); + tmp_vec[9] = vld1q_s32(data + i - 2); + tmp_vec[10] = vld1q_s32(data + i - 1); + tmp_vec[11] = vld1q_s32(data + i - 0); + tmp_vec[12] = vld1q_s32(data + i + 1); + tmp_vec[13] = vld1q_s32(data + i + 2); + tmp_vec[14] = vld1q_s32(data + i + 3); + tmp_vec[15] = vld1q_s32(data + i + 4); + tmp_vec[16] = vld1q_s32(data + i + 5); + tmp_vec[17] = vld1q_s32(data + i + 6); + tmp_vec[18] = vld1q_s32(data + i + 7); + + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_2, 2) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 1) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_2, 0) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 3) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(10, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + tmp_vec[6] = tmp_vec[18]; + } + } + } + else { + if(order == 10) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], qlp_coeff[9], 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 10); + tmp_vec[1] = vld1q_s32(data - 9); + tmp_vec[2] = vld1q_s32(data - 8); + tmp_vec[3] = vld1q_s32(data - 7); + tmp_vec[4] = vld1q_s32(data - 6); + tmp_vec[5] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[6] = vld1q_s32(data + i - 4); + tmp_vec[7] = vld1q_s32(data + i - 3); + tmp_vec[8] = vld1q_s32(data + i - 2); + tmp_vec[9] = vld1q_s32(data + i - 1); + tmp_vec[10] = vld1q_s32(data + i - 0); + tmp_vec[11] = vld1q_s32(data + i + 1); + tmp_vec[12] = vld1q_s32(data + i + 2); + tmp_vec[13] = vld1q_s32(data + i + 3); + tmp_vec[14] = vld1q_s32(data + i + 4); + tmp_vec[15] = vld1q_s32(data + i + 5); + tmp_vec[16] = vld1q_s32(data + i + 6); + tmp_vec[17] = vld1q_s32(data + i + 7); + + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_2, 1) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 0) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 3) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + } + } + else { /* order == 9 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], 0, 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 9); + tmp_vec[1] = vld1q_s32(data - 8); + tmp_vec[2] = vld1q_s32(data - 7); + tmp_vec[3] = vld1q_s32(data - 6); + tmp_vec[4] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[5] = vld1q_s32(data + i - 4); + tmp_vec[6] = vld1q_s32(data + i - 3); + tmp_vec[7] = vld1q_s32(data + i - 2); + tmp_vec[8] = vld1q_s32(data + i - 1); + tmp_vec[9] = vld1q_s32(data + i - 0); + tmp_vec[10] = vld1q_s32(data + i + 1); + tmp_vec[11] = vld1q_s32(data + i + 2); + tmp_vec[12] = vld1q_s32(data + i + 3); + tmp_vec[13] = vld1q_s32(data + i + 4); + tmp_vec[14] = vld1q_s32(data + i + 5); + tmp_vec[15] = vld1q_s32(data + i + 6); + tmp_vec[16] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_2, 0) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 3) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + } + } + } + } + else if(order > 4) { + if(order > 6) { + if(order == 8) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + + tmp_vec[0] = vld1q_s32(data - 8); + tmp_vec[1] = vld1q_s32(data - 7); + tmp_vec[2] = vld1q_s32(data - 6); + tmp_vec[3] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[4] = vld1q_s32(data + i - 4); + tmp_vec[5] = vld1q_s32(data + i - 3); + tmp_vec[6] = vld1q_s32(data + i - 2); + tmp_vec[7] = vld1q_s32(data + i - 1); + tmp_vec[8] = vld1q_s32(data + i - 0); + tmp_vec[9] = vld1q_s32(data + i + 1); + tmp_vec[10] = vld1q_s32(data + i + 2); + tmp_vec[11] = vld1q_s32(data + i + 3); + tmp_vec[12] = vld1q_s32(data + i + 4); + tmp_vec[13] = vld1q_s32(data + i + 5); + tmp_vec[14] = vld1q_s32(data + i + 6); + tmp_vec[15] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_1, 3) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + } + } + else { /* order == 7 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], 0}; + + tmp_vec[0] = vld1q_s32(data - 7); + tmp_vec[1] = vld1q_s32(data - 6); + tmp_vec[2] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[3] = vld1q_s32(data + i - 4); + tmp_vec[4] = vld1q_s32(data + i - 3); + tmp_vec[5] = vld1q_s32(data + i - 2); + tmp_vec[6] = vld1q_s32(data + i - 1); + tmp_vec[7] = vld1q_s32(data + i - 0); + tmp_vec[8] = vld1q_s32(data + i + 1); + tmp_vec[9] = vld1q_s32(data + i + 2); + tmp_vec[10] = vld1q_s32(data + i + 3); + tmp_vec[11] = vld1q_s32(data + i + 4); + tmp_vec[12] = vld1q_s32(data + i + 5); + tmp_vec[13] = vld1q_s32(data + i + 6); + tmp_vec[14] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_1, 2) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + } + } + } + else { + if(order == 6) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 6); + tmp_vec[1] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[2] = vld1q_s32(data + i - 4); + tmp_vec[3] = vld1q_s32(data + i - 3); + tmp_vec[4] = vld1q_s32(data + i - 2); + tmp_vec[5] = vld1q_s32(data + i - 1); + tmp_vec[6] = vld1q_s32(data + i - 0); + tmp_vec[7] = vld1q_s32(data + i + 1); + tmp_vec[8] = vld1q_s32(data + i + 2); + tmp_vec[9] = vld1q_s32(data + i + 3); + tmp_vec[10] = vld1q_s32(data + i + 4); + tmp_vec[11] = vld1q_s32(data + i + 5); + tmp_vec[12] = vld1q_s32(data + i + 6); + tmp_vec[13] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_1, 1) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + } + } + else { /* order == 5 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], 0, 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + + tmp_vec[1] = vld1q_s32(data + i - 4); + tmp_vec[2] = vld1q_s32(data + i - 3); + tmp_vec[3] = vld1q_s32(data + i - 2); + tmp_vec[4] = vld1q_s32(data + i - 1); + tmp_vec[5] = vld1q_s32(data + i - 0); + tmp_vec[6] = vld1q_s32(data + i + 1); + tmp_vec[7] = vld1q_s32(data + i + 2); + tmp_vec[8] = vld1q_s32(data + i + 3); + tmp_vec[9] = vld1q_s32(data + i + 4); + tmp_vec[10] = vld1q_s32(data + i + 5); + tmp_vec[11] = vld1q_s32(data + i + 6); + tmp_vec[12] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_1, 0) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + + tmp_vec[0] = tmp_vec[12]; + } + } + } + } + else { + if(order > 2) { + if(order == 4) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[0] = vld1q_s32(data + i - 4); + tmp_vec[1] = vld1q_s32(data + i - 3); + tmp_vec[2] = vld1q_s32(data + i - 2); + tmp_vec[3] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i - 0); + tmp_vec[5] = vld1q_s32(data + i + 1); + tmp_vec[6] = vld1q_s32(data + i + 2); + tmp_vec[7] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 4); + tmp_vec[9] = vld1q_s32(data + i + 5); + tmp_vec[10] = vld1q_s32(data + i + 6); + tmp_vec[11] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_0, 3) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + } + } + else { /* order == 3 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], 0}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[0] = vld1q_s32(data + i - 3); + tmp_vec[1] = vld1q_s32(data + i - 2); + tmp_vec[2] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 1); + tmp_vec[5] = vld1q_s32(data + i + 2); + tmp_vec[6] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 5); + tmp_vec[9] = vld1q_s32(data + i + 6); + tmp_vec[10] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_0, 2) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + } + } + } + else { + if(order == 2) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], 0, 0}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[0] = vld1q_s32(data + i - 2); + tmp_vec[1] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 2); + tmp_vec[5] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 6); + tmp_vec[9] = vld1q_s32(data + i + 7); + + MUL_32_BIT_LOOP_UNROOL_3(qlp_coeff_0, 1) + MACC_32BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 0) + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + } + } + else { /* order == 1 */ + int32x4_t qlp_coeff_0 = vdupq_n_s32(qlp_coeff[0]); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int32x4_t summ_0, summ_1, summ_2; + tmp_vec[0] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 7); + + summ_0 = vmulq_s32(tmp_vec[0], qlp_coeff_0); + summ_1 = vmulq_s32(tmp_vec[4], qlp_coeff_0); + summ_2 = vmulq_s32(tmp_vec[8], qlp_coeff_0); + + vst1q_s32(residual+i + 0, vsubq_s32(vld1q_s32(data+i + 0) , vshlq_s32(summ_0,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 4, vsubq_s32(vld1q_s32(data+i + 4) , vshlq_s32(summ_1,vdupq_n_s32(-lp_quantization)))); + vst1q_s32(residual+i + 8, vsubq_s32(vld1q_s32(data+i + 8) , vshlq_s32(summ_2,vdupq_n_s32(-lp_quantization)))); + } + } + } + } + for(; i < (int)data_len; i++) { + sum = 0; + switch(order) { + case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */ + case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */ + case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */ + case 9: sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */ + case 8: sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */ + case 7: sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */ + case 6: sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */ + case 5: sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */ + case 4: sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */ + case 3: sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */ + case 2: sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */ + case 1: sum += qlp_coeff[ 0] * data[i- 1]; + } + residual[i] = data[i] - (sum >> lp_quantization); + } + } + else { /* order > 12 */ + for(i = 0; i < (int)data_len; i++) { + sum = 0; + switch(order) { + case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */ + case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */ + case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */ + case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */ + case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */ + case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */ + case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */ + case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */ + case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */ + case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */ + case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */ + case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */ + case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */ + case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */ + case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */ + case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */ + case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */ + case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */ + case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */ + case 13: sum += qlp_coeff[12] * data[i-13]; + sum += qlp_coeff[11] * data[i-12]; + sum += qlp_coeff[10] * data[i-11]; + sum += qlp_coeff[ 9] * data[i-10]; + sum += qlp_coeff[ 8] * data[i- 9]; + sum += qlp_coeff[ 7] * data[i- 8]; + sum += qlp_coeff[ 6] * data[i- 7]; + sum += qlp_coeff[ 5] * data[i- 6]; + sum += qlp_coeff[ 4] * data[i- 5]; + sum += qlp_coeff[ 3] * data[i- 4]; + sum += qlp_coeff[ 2] * data[i- 3]; + sum += qlp_coeff[ 1] * data[i- 2]; + sum += qlp_coeff[ 0] * data[i- 1]; + } + residual[i] = data[i] - (sum >> lp_quantization); + } + } +} + + + +#define MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_vec, lane) \ + summ_l_0 = vmull_laneq_s32(vget_low_s32(tmp_vec[0]),qlp_coeff_vec, lane); \ + summ_h_0 = vmull_high_laneq_s32(tmp_vec[0], qlp_coeff_vec, lane);\ + summ_l_1 = vmull_laneq_s32(vget_low_s32(tmp_vec[4]),qlp_coeff_vec, lane); \ + summ_h_1 = vmull_high_laneq_s32(tmp_vec[4], qlp_coeff_vec, lane);\ + summ_l_2 = vmull_laneq_s32(vget_low_s32(tmp_vec[8]),qlp_coeff_vec, lane);\ + summ_h_2 = vmull_high_laneq_s32(tmp_vec[8], qlp_coeff_vec, lane); + + +#define MACC_64_BIT_LOOP_UNROOL_3(tmp_vec_ind, qlp_coeff_vec, lane) \ + summ_l_0 = vmlal_laneq_s32(summ_l_0,vget_low_s32(tmp_vec[tmp_vec_ind]),qlp_coeff_vec, lane); \ + summ_h_0 = vmlal_high_laneq_s32(summ_h_0, tmp_vec[tmp_vec_ind], qlp_coeff_vec, lane); \ + summ_l_1 = vmlal_laneq_s32(summ_l_1, vget_low_s32(tmp_vec[tmp_vec_ind+4]),qlp_coeff_vec, lane); \ + summ_h_1 = vmlal_high_laneq_s32(summ_h_1, tmp_vec[tmp_vec_ind+4], qlp_coeff_vec, lane); \ + summ_l_2 = vmlal_laneq_s32(summ_l_2, vget_low_s32(tmp_vec[tmp_vec_ind+8]),qlp_coeff_vec, lane);\ + summ_h_2 = vmlal_high_laneq_s32(summ_h_2,tmp_vec[tmp_vec_ind+8], qlp_coeff_vec, lane); + +#define SHIFT_SUMS_64BITS_AND_STORE_SUB() \ + res0 = vuzp1q_s32(vreinterpretq_s32_s64(vshlq_s64(summ_l_0,lp_quantization_vec)), vreinterpretq_s32_s64(vshlq_s64(summ_h_0,lp_quantization_vec))); \ + res1 = vuzp1q_s32(vreinterpretq_s32_s64(vshlq_s64(summ_l_1,lp_quantization_vec)), vreinterpretq_s32_s64(vshlq_s64(summ_h_1,lp_quantization_vec))); \ + res2 = vuzp1q_s32(vreinterpretq_s32_s64(vshlq_s64(summ_l_2,lp_quantization_vec)), vreinterpretq_s32_s64(vshlq_s64(summ_h_2,lp_quantization_vec))); \ + vst1q_s32(residual+i+0, vsubq_s32(vld1q_s32(data+i+0), res0));\ + vst1q_s32(residual+i+4, vsubq_s32(vld1q_s32(data+i+4), res1));\ + vst1q_s32(residual+i+8, vsubq_s32(vld1q_s32(data+i+8), res2)); + +void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]) { + int i; + FLAC__int64 sum; + + int32x4_t tmp_vec[20]; + int32x4_t res0, res1, res2; + int64x2_t lp_quantization_vec = vdupq_n_s64(-lp_quantization); + + FLAC__ASSERT(order > 0); + FLAC__ASSERT(order <= 32); + + // Using prologue reads is valid as encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit(signal+order,....) + if(order <= 12) { + if(order > 8) { + if(order > 10) { + if(order == 12) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4],qlp_coeff[5],qlp_coeff[6],qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8],qlp_coeff[9],qlp_coeff[10],qlp_coeff[11]}; + + tmp_vec[0] = vld1q_s32(data - 12); + tmp_vec[1] = vld1q_s32(data - 11); + tmp_vec[2] = vld1q_s32(data - 10); + tmp_vec[3] = vld1q_s32(data - 9); + tmp_vec[4] = vld1q_s32(data - 8); + tmp_vec[5] = vld1q_s32(data - 7); + tmp_vec[6] = vld1q_s32(data - 6); + tmp_vec[7] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[8] = vld1q_s32(data+i-4); + tmp_vec[9] = vld1q_s32(data+i-3); + tmp_vec[10] = vld1q_s32(data+i-2); + tmp_vec[11] = vld1q_s32(data+i-1); + tmp_vec[12] = vld1q_s32(data+i); + tmp_vec[13] = vld1q_s32(data+i+1); + tmp_vec[14] = vld1q_s32(data+i+2); + tmp_vec[15] = vld1q_s32(data+i+3); + tmp_vec[16] = vld1q_s32(data + i + 4); + tmp_vec[17] = vld1q_s32(data + i + 5); + tmp_vec[18] = vld1q_s32(data + i + 6); + tmp_vec[19] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_2, 3) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 2) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_2, 1) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_2, 0) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 3) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(7, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(10,qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(11,qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + tmp_vec[6] = tmp_vec[18]; + tmp_vec[7] = tmp_vec[19]; + } + } + else { /* order == 11 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4],qlp_coeff[5],qlp_coeff[6],qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8],qlp_coeff[9],qlp_coeff[10],0}; + + tmp_vec[0] = vld1q_s32(data - 11); + tmp_vec[1] = vld1q_s32(data - 10); + tmp_vec[2] = vld1q_s32(data - 9); + tmp_vec[3] = vld1q_s32(data - 8); + tmp_vec[4] = vld1q_s32(data - 7); + tmp_vec[5] = vld1q_s32(data - 6); + tmp_vec[6] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[7] = vld1q_s32(data+i-4); + tmp_vec[8] = vld1q_s32(data+i-3); + tmp_vec[9] = vld1q_s32(data+i-2); + tmp_vec[10] = vld1q_s32(data+i-1); + tmp_vec[11] = vld1q_s32(data+i); + tmp_vec[12] = vld1q_s32(data+i+1); + tmp_vec[13] = vld1q_s32(data+i+2); + tmp_vec[14] = vld1q_s32(data+i+3); + tmp_vec[15] = vld1q_s32(data + i + 4); + tmp_vec[16] = vld1q_s32(data + i + 5); + tmp_vec[17] = vld1q_s32(data + i + 6); + tmp_vec[18] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_2, 2) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 1) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_2, 0) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 3) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(10,qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + tmp_vec[6] = tmp_vec[18]; + } + } + } + else + { + if (order == 10) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], qlp_coeff[9], 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 10); + tmp_vec[1] = vld1q_s32(data - 9); + tmp_vec[2] = vld1q_s32(data - 8); + tmp_vec[3] = vld1q_s32(data - 7); + tmp_vec[4] = vld1q_s32(data - 6); + tmp_vec[5] = vld1q_s32(data - 5); + + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[6] = vld1q_s32(data + i - 4); + tmp_vec[7] = vld1q_s32(data + i - 3); + tmp_vec[8] = vld1q_s32(data + i - 2); + tmp_vec[9] = vld1q_s32(data + i - 1); + tmp_vec[10] = vld1q_s32(data + i - 0); + tmp_vec[11] = vld1q_s32(data + i + 1); + tmp_vec[12] = vld1q_s32(data + i + 2); + tmp_vec[13] = vld1q_s32(data + i + 3); + tmp_vec[14] = vld1q_s32(data + i + 4); + tmp_vec[15] = vld1q_s32(data + i + 5); + tmp_vec[16] = vld1q_s32(data + i + 6); + tmp_vec[17] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_2, 1) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_2, 0) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 3) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(9, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + tmp_vec[5] = tmp_vec[17]; + } + } + + else /* order == 9 */ { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + int32x4_t qlp_coeff_2 = {qlp_coeff[8], 0, 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 9); + tmp_vec[1] = vld1q_s32(data - 8); + tmp_vec[2] = vld1q_s32(data - 7); + tmp_vec[3] = vld1q_s32(data - 6); + tmp_vec[4] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[5] = vld1q_s32(data + i - 4); + tmp_vec[6] = vld1q_s32(data + i - 3); + tmp_vec[7] = vld1q_s32(data + i - 2); + tmp_vec[8] = vld1q_s32(data + i - 1); + tmp_vec[9] = vld1q_s32(data + i - 0); + tmp_vec[10] = vld1q_s32(data + i + 1); + tmp_vec[11] = vld1q_s32(data + i + 2); + tmp_vec[12] = vld1q_s32(data + i + 3); + tmp_vec[13] = vld1q_s32(data + i + 4); + tmp_vec[14] = vld1q_s32(data + i + 5); + tmp_vec[15] = vld1q_s32(data + i + 6); + tmp_vec[16] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_2, 0) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 3) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(8, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + tmp_vec[4] = tmp_vec[16]; + } + } + } + } + else if (order > 4) + { + if (order > 6) + { + if (order == 8) + { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], qlp_coeff[7]}; + + tmp_vec[0] = vld1q_s32(data - 8); + tmp_vec[1] = vld1q_s32(data - 7); + tmp_vec[2] = vld1q_s32(data - 6); + tmp_vec[3] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[4] = vld1q_s32(data + i - 4); + tmp_vec[5] = vld1q_s32(data + i - 3); + tmp_vec[6] = vld1q_s32(data + i - 2); + tmp_vec[7] = vld1q_s32(data + i - 1); + tmp_vec[8] = vld1q_s32(data + i - 0); + tmp_vec[9] = vld1q_s32(data + i + 1); + tmp_vec[10] = vld1q_s32(data + i + 2); + tmp_vec[11] = vld1q_s32(data + i + 3); + tmp_vec[12] = vld1q_s32(data + i + 4); + tmp_vec[13] = vld1q_s32(data + i + 5); + tmp_vec[14] = vld1q_s32(data + i + 6); + tmp_vec[15] = vld1q_s32(data + i + 7); + + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_1, 3) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(7, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + tmp_vec[3] = tmp_vec[15]; + } + } + else /* order == 7 */ + { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], qlp_coeff[6], 0}; + + tmp_vec[0] = vld1q_s32(data - 7); + tmp_vec[1] = vld1q_s32(data - 6); + tmp_vec[2] = vld1q_s32(data - 5); + + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[3] = vld1q_s32(data +i - 4); + tmp_vec[4] = vld1q_s32(data + i - 3); + tmp_vec[5] = vld1q_s32(data + i - 2); + tmp_vec[6] = vld1q_s32(data + i - 1); + tmp_vec[7] = vld1q_s32(data + i - 0); + tmp_vec[8] = vld1q_s32(data + i + 1); + tmp_vec[9] = vld1q_s32(data + i + 2); + tmp_vec[10] = vld1q_s32(data + i + 3); + tmp_vec[11] = vld1q_s32(data + i + 4); + tmp_vec[12] = vld1q_s32(data + i + 5); + tmp_vec[13] = vld1q_s32(data + i + 6); + tmp_vec[14] = vld1q_s32(data + i + 7); + + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_1, 2) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(6, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + tmp_vec[2] = tmp_vec[14]; + } + } + } + else + { + if (order == 6) { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], qlp_coeff[5], 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 6); + tmp_vec[1] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + + tmp_vec[2] = vld1q_s32(data + i - 4); + tmp_vec[3] = vld1q_s32(data + i - 3); + tmp_vec[4] = vld1q_s32(data + i - 2); + tmp_vec[5] = vld1q_s32(data + i - 1); + tmp_vec[6] = vld1q_s32(data + i - 0); + tmp_vec[7] = vld1q_s32(data + i + 1); + tmp_vec[8] = vld1q_s32(data + i + 2); + tmp_vec[9] = vld1q_s32(data + i + 3); + tmp_vec[10] = vld1q_s32(data + i + 4); + tmp_vec[11] = vld1q_s32(data + i + 5); + tmp_vec[12] = vld1q_s32(data + i + 6); + tmp_vec[13] = vld1q_s32(data + i + 7); + + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_1, 1) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(5, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + tmp_vec[1] = tmp_vec[13]; + } + } + + else + { /* order == 5 */ + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + int32x4_t qlp_coeff_1 = {qlp_coeff[4], 0, 0, 0}; + + tmp_vec[0] = vld1q_s32(data - 5); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[1] = vld1q_s32(data + i - 4); + tmp_vec[2] = vld1q_s32(data + i - 3); + tmp_vec[3] = vld1q_s32(data + i - 2); + tmp_vec[4] = vld1q_s32(data + i - 1); + tmp_vec[5] = vld1q_s32(data + i - 0); + tmp_vec[6] = vld1q_s32(data + i + 1); + tmp_vec[7] = vld1q_s32(data + i + 2); + tmp_vec[8] = vld1q_s32(data + i + 3); + tmp_vec[9] = vld1q_s32(data + i + 4); + tmp_vec[10] = vld1q_s32(data + i + 5); + tmp_vec[11] = vld1q_s32(data + i + 6); + tmp_vec[12] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_1, 0) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(4, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + + tmp_vec[0] = tmp_vec[12]; + } + } + } + } + else + { + if (order > 2) + { + if (order == 4) + { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], qlp_coeff[3]}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[0] = vld1q_s32(data + i - 4); + tmp_vec[1] = vld1q_s32(data + i - 3); + tmp_vec[2] = vld1q_s32(data + i - 2); + tmp_vec[3] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i - 0); + tmp_vec[5] = vld1q_s32(data + i + 1); + tmp_vec[6] = vld1q_s32(data + i + 2); + tmp_vec[7] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 4); + tmp_vec[9] = vld1q_s32(data + i + 5); + tmp_vec[10] = vld1q_s32(data + i + 6); + tmp_vec[11] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_0, 3) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(3, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + } + } + else + { /* order == 3 */ + + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], qlp_coeff[2], 0}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[0] = vld1q_s32(data + i - 3); + tmp_vec[1] = vld1q_s32(data + i - 2); + tmp_vec[2] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 1); + tmp_vec[5] = vld1q_s32(data + i + 2); + tmp_vec[6] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 5); + tmp_vec[9] = vld1q_s32(data + i + 6); + tmp_vec[10] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_0, 2) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(2, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + } + } + } + else + { + if (order == 2) + { + int32x4_t qlp_coeff_0 = {qlp_coeff[0], qlp_coeff[1], 0, 0}; + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[0] = vld1q_s32(data + i - 2); + tmp_vec[1] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 2); + tmp_vec[5] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 6); + tmp_vec[9] = vld1q_s32(data + i + 7); + + MUL_64_BIT_LOOP_UNROOL_3(qlp_coeff_0, 1) + MACC_64_BIT_LOOP_UNROOL_3(1, qlp_coeff_0, 0) + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + } + } + + else + { /* order == 1 */ + + int32x2_t qlp_coeff_0_2 = vdup_n_s32(qlp_coeff[0]); + int32x4_t qlp_coeff_0_4 = vdupq_n_s32(qlp_coeff[0]); + + for (i = 0; i < (int)data_len - 11; i += 12) + { + int64x2_t summ_l_0, summ_h_0, summ_l_1, summ_h_1, summ_l_2, summ_h_2; + tmp_vec[0] = vld1q_s32(data + i - 1); + tmp_vec[4] = vld1q_s32(data + i + 3); + tmp_vec[8] = vld1q_s32(data + i + 7); + + summ_l_0 = vmull_s32(vget_low_s32(tmp_vec[0]), qlp_coeff_0_2); + summ_h_0 = vmull_high_s32(tmp_vec[0], qlp_coeff_0_4); + + summ_l_1 = vmull_s32(vget_low_s32(tmp_vec[4]), qlp_coeff_0_2); + summ_h_1 = vmull_high_s32(tmp_vec[4], qlp_coeff_0_4); + + summ_l_2 = vmull_s32(vget_low_s32(tmp_vec[8]), qlp_coeff_0_2); + summ_h_2 = vmull_high_s32(tmp_vec[8], qlp_coeff_0_4); + + SHIFT_SUMS_64BITS_AND_STORE_SUB() + } + } + } + } + for (; i < (int)data_len; i++) + { + sum = 0; + switch (order) + { + case 12: + sum += qlp_coeff[11] * (FLAC__int64)data[i - 12]; /* Falls through. */ + case 11: + sum += qlp_coeff[10] * (FLAC__int64)data[i - 11]; /* Falls through. */ + case 10: + sum += qlp_coeff[9] * (FLAC__int64)data[i - 10]; /* Falls through. */ + case 9: + sum += qlp_coeff[8] * (FLAC__int64)data[i - 9]; /* Falls through. */ + case 8: + sum += qlp_coeff[7] * (FLAC__int64)data[i - 8]; /* Falls through. */ + case 7: + sum += qlp_coeff[6] * (FLAC__int64)data[i - 7]; /* Falls through. */ + case 6: + sum += qlp_coeff[5] * (FLAC__int64)data[i - 6]; /* Falls through. */ + case 5: + sum += qlp_coeff[4] * (FLAC__int64)data[i - 5]; /* Falls through. */ + case 4: + sum += qlp_coeff[3] * (FLAC__int64)data[i - 4]; /* Falls through. */ + case 3: + sum += qlp_coeff[2] * (FLAC__int64)data[i - 3]; /* Falls through. */ + case 2: + sum += qlp_coeff[1] * (FLAC__int64)data[i - 2]; /* Falls through. */ + case 1: + sum += qlp_coeff[0] * (FLAC__int64)data[i - 1]; + } + residual[i] = data[i] - (sum >> lp_quantization); + } + } + else + { /* order > 12 */ + for (i = 0; i < (int)data_len; i++) + { + sum = 0; + switch (order) + { + case 32: + sum += qlp_coeff[31] * (FLAC__int64)data[i - 32]; /* Falls through. */ + case 31: + sum += qlp_coeff[30] * (FLAC__int64)data[i - 31]; /* Falls through. */ + case 30: + sum += qlp_coeff[29] * (FLAC__int64)data[i - 30]; /* Falls through. */ + case 29: + sum += qlp_coeff[28] * (FLAC__int64)data[i - 29]; /* Falls through. */ + case 28: + sum += qlp_coeff[27] * (FLAC__int64)data[i - 28]; /* Falls through. */ + case 27: + sum += qlp_coeff[26] * (FLAC__int64)data[i - 27]; /* Falls through. */ + case 26: + sum += qlp_coeff[25] * (FLAC__int64)data[i - 26]; /* Falls through. */ + case 25: + sum += qlp_coeff[24] * (FLAC__int64)data[i - 25]; /* Falls through. */ + case 24: + sum += qlp_coeff[23] * (FLAC__int64)data[i - 24]; /* Falls through. */ + case 23: + sum += qlp_coeff[22] * (FLAC__int64)data[i - 23]; /* Falls through. */ + case 22: + sum += qlp_coeff[21] * (FLAC__int64)data[i - 22]; /* Falls through. */ + case 21: + sum += qlp_coeff[20] * (FLAC__int64)data[i - 21]; /* Falls through. */ + case 20: + sum += qlp_coeff[19] * (FLAC__int64)data[i - 20]; /* Falls through. */ + case 19: + sum += qlp_coeff[18] * (FLAC__int64)data[i - 19]; /* Falls through. */ + case 18: + sum += qlp_coeff[17] * (FLAC__int64)data[i - 18]; /* Falls through. */ + case 17: + sum += qlp_coeff[16] * (FLAC__int64)data[i - 17]; /* Falls through. */ + case 16: + sum += qlp_coeff[15] * (FLAC__int64)data[i - 16]; /* Falls through. */ + case 15: + sum += qlp_coeff[14] * (FLAC__int64)data[i - 15]; /* Falls through. */ + case 14: + sum += qlp_coeff[13] * (FLAC__int64)data[i - 14]; /* Falls through. */ + case 13: + sum += qlp_coeff[12] * (FLAC__int64)data[i - 13]; + sum += qlp_coeff[11] * (FLAC__int64)data[i - 12]; + sum += qlp_coeff[10] * (FLAC__int64)data[i - 11]; + sum += qlp_coeff[9] * (FLAC__int64)data[i - 10]; + sum += qlp_coeff[8] * (FLAC__int64)data[i - 9]; + sum += qlp_coeff[7] * (FLAC__int64)data[i - 8]; + sum += qlp_coeff[6] * (FLAC__int64)data[i - 7]; + sum += qlp_coeff[5] * (FLAC__int64)data[i - 6]; + sum += qlp_coeff[4] * (FLAC__int64)data[i - 5]; + sum += qlp_coeff[3] * (FLAC__int64)data[i - 4]; + sum += qlp_coeff[2] * (FLAC__int64)data[i - 3]; + sum += qlp_coeff[1] * (FLAC__int64)data[i - 2]; + sum += qlp_coeff[0] * (FLAC__int64)data[i - 1]; + } + residual[i] = data[i] - (sum >> lp_quantization); + } + } + + return; +} + +#endif /* FLAC__CPU_ARM64 && FLAC__HAS_ARCH64INTRIN */ +#endif /* FLAC__NO_ASM */ +#endif /* FLAC__INTEGER_ONLY_LIBRARY */ |