/****************************************************************************** * * Copyright 2022 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ #if (__ARM_FEATURE_SIMD32 && !(__GNUC__ < 10) || defined(TEST_ARM)) #ifndef TEST_ARM #include static inline int16x2_t __pkhbt(int16x2_t a, int16x2_t b) { int16x2_t r; __asm("pkhbt %0, %1, %2" : "=r" (r) : "r" (a), "r" (b)); return r; } #endif /* TEST_ARM */ /** * Import */ static inline int32_t filter_hp50(struct lc3_ltpf_hp50_state *, int32_t); static inline float dot(const int16_t *, const int16_t *, int); /** * Resample from 8 / 16 / 32 KHz to 12.8 KHz Template */ #if !defined(resample_8k_12k8) || !defined(resample_16k_12k8) \ || !defined(resample_32k_12k8) static inline void arm_resample_x64k_12k8(const int p, const int16x2_t *h, struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) { const int w = 40 / p; x -= w; for (int i = 0; i < 5*n; i += 5) { const int16x2_t *hn = h + (i % (2*p)) * (48 / p); const int16x2_t *xn = x + (i / (2*p)); int32_t un = __smlad(*(xn++), *(hn++), 0); for (int k = 0; k < w; k += 5) { un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); } int32_t yn = filter_hp50(hp50, un); *(y++) = (yn + (1 << 15)) >> 16; } } #endif /** * Resample from 24 / 48 KHz to 12.8 KHz Template */ #if !defined(resample_24k_12k8) || !defined(resample_48k_12k8) static inline void arm_resample_x192k_12k8(const int p, const int16x2_t *h, struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) { const int w = 120 / p; x -= w; for (int i = 0; i < 15*n; i += 15) { const int16x2_t *hn = h + (i % (2*p)) * (128 / p); const int16x2_t *xn = x + (i / (2*p)); int32_t un = __smlad(*(xn++), *(hn++), 0); for (int k = 0; k < w; k += 15) { un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); un = __smlad(*(xn++), *(hn++), un); } int32_t yn = filter_hp50(hp50, un); *(y++) = (yn + (1 << 15)) >> 16; } } #endif /** * Resample from 8 Khz to 12.8 KHz */ #ifndef resample_8k_12k8 static void arm_resample_8k_12k8( struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) { static const int16_t alignas(int32_t) h[2*8*12] = { 0, 214, 417, -1052, -4529, 26233, -4529, -1052, 417, 214, 0, 0, 0, 180, 0, -1522, -2427, 24506, -5289, 0, 763, 156, -28, 0, 0, 92, -323, -1361, 0, 19741, -3885, 1317, 861, 0, -61, 0, 0, 0, -457, -752, 1873, 13068, 0, 2389, 598, -213, -79, 0, 0, -61, -398, 0, 2686, 5997, 5997, 2686, 0, -398, -61, 0, 0, -79, -213, 598, 2389, 0, 13068, 1873, -752, -457, 0, 0, 0, -61, 0, 861, 1317, -3885, 19741, 0, -1361, -323, 92, 0, 0, -28, 156, 763, 0, -5289, 24506, -2427, -1522, 0, 180, 0, 0, 0, 214, 417, -1052, -4529, 26233, -4529, -1052, 417, 214, 0, 0, 0, 180, 0, -1522, -2427, 24506, -5289, 0, 763, 156, -28, 0, 0, 92, -323, -1361, 0, 19741, -3885, 1317, 861, 0, -61, 0, 0, 0, -457, -752, 1873, 13068, 0, 2389, 598, -213, -79, 0, 0, -61, -398, 0, 2686, 5997, 5997, 2686, 0, -398, -61, 0, 0, -79, -213, 598, 2389, 0, 13068, 1873, -752, -457, 0, 0, 0, -61, 0, 861, 1317, -3885, 19741, 0, -1361, -323, 92, 0, 0, -28, 156, 763, 0, -5289, 24506, -2427, -1522, 0, 180, }; arm_resample_x64k_12k8( 8, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); } #ifndef TEST_ARM #define resample_8k_12k8 arm_resample_8k_12k8 #endif #endif /* resample_8k_12k8 */ /** * Resample from 16 Khz to 12.8 KHz */ #ifndef resample_16k_12k8 static void arm_resample_16k_12k8( struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) { static const int16_t alignas(int32_t) h[2*4*24] = { 0, -61, 214, -398, 417, 0, -1052, 2686, -4529, 5997, 26233, 5997, -4529, 2686, -1052, 0, 417, -398, 214, -61, 0, 0, 0, 0, 0, -79, 180, -213, 0, 598, -1522, 2389, -2427, 0, 24506, 13068, -5289, 1873, 0, -752, 763, -457, 156, 0, -28, 0, 0, 0, 0, -61, 92, 0, -323, 861, -1361, 1317, 0, -3885, 19741, 19741, -3885, 0, 1317, -1361, 861, -323, 0, 92, -61, 0, 0, 0, 0, -28, 0, 156, -457, 763, -752, 0, 1873, -5289, 13068, 24506, 0, -2427, 2389, -1522, 598, 0, -213, 180, -79, 0, 0, 0, 0, 0, -61, 214, -398, 417, 0, -1052, 2686, -4529, 5997, 26233, 5997, -4529, 2686, -1052, 0, 417, -398, 214, -61, 0, 0, 0, 0, 0, -79, 180, -213, 0, 598, -1522, 2389, -2427, 0, 24506, 13068, -5289, 1873, 0, -752, 763, -457, 156, 0, -28, 0, 0, 0, 0, -61, 92, 0, -323, 861, -1361, 1317, 0, -3885, 19741, 19741, -3885, 0, 1317, -1361, 861, -323, 0, 92, -61, 0, 0, 0, 0, -28, 0, 156, -457, 763, -752, 0, 1873, -5289, 13068, 24506, 0, -2427, 2389, -1522, 598, 0, -213, 180, -79, 0, 0, }; arm_resample_x64k_12k8( 4, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); } #ifndef TEST_ARM #define resample_16k_12k8 arm_resample_16k_12k8 #endif #endif /* resample_16k_12k8 */ /** * Resample from 32 Khz to 12.8 KHz */ #ifndef resample_32k_12k8 static void arm_resample_32k_12k8( struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) { static const int16_t alignas(int32_t) h[2*2*48] = { 0, -30, -31, 46, 107, 0, -199, -162, 209, 430, 0, -681, -526, 658, 1343, 0, -2264, -1943, 2999, 9871, 13116, 9871, 2999, -1943, -2264, 0, 1343, 658, -526, -681, 0, 430, 209, -162, -199, 0, 107, 46, -31, -30, 0, 0, 0, 0, 0, 0, 0, 0, 0, -14, -39, 0, 90, 78, -106, -229, 0, 382, 299, -376, -761, 0, 1194, 937, -1214, -2644, 0, 6534, 12253, 12253, 6534, 0, -2644, -1214, 937, 1194, 0, -761, -376, 299, 382, 0, -229, -106, 78, 90, 0, -39, -14, 0, 0, 0, 0, 0, 0, 0, 0, 0, -30, -31, 46, 107, 0, -199, -162, 209, 430, 0, -681, -526, 658, 1343, 0, -2264, -1943, 2999, 9871, 13116, 9871, 2999, -1943, -2264, 0, 1343, 658, -526, -681, 0, 430, 209, -162, -199, 0, 107, 46, -31, -30, 0, 0, 0, 0, 0, 0, 0, 0, 0, -14, -39, 0, 90, 78, -106, -229, 0, 382, 299, -376, -761, 0, 1194, 937, -1214, -2644, 0, 6534, 12253, 12253, 6534, 0, -2644, -1214, 937, 1194, 0, -761, -376, 299, 382, 0, -229, -106, 78, 90, 0, -39, -14, 0, 0, 0, 0, 0, 0, }; arm_resample_x64k_12k8( 2, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); } #ifndef TEST_ARM #define resample_32k_12k8 arm_resample_32k_12k8 #endif #endif /* resample_32k_12k8 */ /** * Resample from 24 Khz to 12.8 KHz */ #ifndef resample_24k_12k8 static void arm_resample_24k_12k8( struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) { static const int16_t alignas(int32_t) h[2*8*32] = { 0, -50, 19, 143, -93, -290, 278, 485, -658, -701, 1396, 901, -3019, -1042, 10276, 17488, 10276, -1042, -3019, 901, 1396, -701, -658, 485, 278, -290, -93, 143, 19, -50, 0, 0, 0, -46, 0, 141, -45, -305, 185, 543, -501, -854, 1153, 1249, -2619, -1908, 8712, 17358, 11772, 0, -3319, 480, 1593, -504, -796, 399, 367, -261, -142, 138, 40, -52, -5, 0, 0, -41, -17, 133, 0, -304, 91, 574, -334, -959, 878, 1516, -2143, -2590, 7118, 16971, 13161, 1202, -3495, 0, 1731, -267, -908, 287, 445, -215, -188, 125, 62, -52, -12, 0, 0, -34, -30, 120, 41, -291, 0, 577, -164, -1015, 585, 1697, -1618, -3084, 5534, 16337, 14406, 2544, -3526, -523, 1800, 0, -985, 152, 509, -156, -230, 104, 83, -48, -19, 0, 0, -26, -41, 103, 76, -265, -83, 554, 0, -1023, 288, 1791, -1070, -3393, 3998, 15474, 15474, 3998, -3393, -1070, 1791, 288, -1023, 0, 554, -83, -265, 76, 103, -41, -26, 0, 0, -19, -48, 83, 104, -230, -156, 509, 152, -985, 0, 1800, -523, -3526, 2544, 14406, 16337, 5534, -3084, -1618, 1697, 585, -1015, -164, 577, 0, -291, 41, 120, -30, -34, 0, 0, -12, -52, 62, 125, -188, -215, 445, 287, -908, -267, 1731, 0, -3495, 1202, 13161, 16971, 7118, -2590, -2143, 1516, 878, -959, -334, 574, 91, -304, 0, 133, -17, -41, 0, 0, -5, -52, 40, 138, -142, -261, 367, 399, -796, -504, 1593, 480, -3319, 0, 11772, 17358, 8712, -1908, -2619, 1249, 1153, -854, -501, 543, 185, -305, -45, 141, 0, -46, 0, 0, 0, -50, 19, 143, -93, -290, 278, 485, -658, -701, 1396, 901, -3019, -1042, 10276, 17488, 10276, -1042, -3019, 901, 1396, -701, -658, 485, 278, -290, -93, 143, 19, -50, 0, 0, 0, -46, 0, 141, -45, -305, 185, 543, -501, -854, 1153, 1249, -2619, -1908, 8712, 17358, 11772, 0, -3319, 480, 1593, -504, -796, 399, 367, -261, -142, 138, 40, -52, -5, 0, 0, -41, -17, 133, 0, -304, 91, 574, -334, -959, 878, 1516, -2143, -2590, 7118, 16971, 13161, 1202, -3495, 0, 1731, -267, -908, 287, 445, -215, -188, 125, 62, -52, -12, 0, 0, -34, -30, 120, 41, -291, 0, 577, -164, -1015, 585, 1697, -1618, -3084, 5534, 16337, 14406, 2544, -3526, -523, 1800, 0, -985, 152, 509, -156, -230, 104, 83, -48, -19, 0, 0, -26, -41, 103, 76, -265, -83, 554, 0, -1023, 288, 1791, -1070, -3393, 3998, 15474, 15474, 3998, -3393, -1070, 1791, 288, -1023, 0, 554, -83, -265, 76, 103, -41, -26, 0, 0, -19, -48, 83, 104, -230, -156, 509, 152, -985, 0, 1800, -523, -3526, 2544, 14406, 16337, 5534, -3084, -1618, 1697, 585, -1015, -164, 577, 0, -291, 41, 120, -30, -34, 0, 0, -12, -52, 62, 125, -188, -215, 445, 287, -908, -267, 1731, 0, -3495, 1202, 13161, 16971, 7118, -2590, -2143, 1516, 878, -959, -334, 574, 91, -304, 0, 133, -17, -41, 0, 0, -5, -52, 40, 138, -142, -261, 367, 399, -796, -504, 1593, 480, -3319, 0, 11772, 17358, 8712, -1908, -2619, 1249, 1153, -854, -501, 543, 185, -305, -45, 141, 0, -46, }; arm_resample_x192k_12k8( 8, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); } #ifndef TEST_ARM #define resample_24k_12k8 arm_resample_24k_12k8 #endif #endif /* resample_24k_12k8 */ /** * Resample from 48 Khz to 12.8 KHz */ #ifndef resample_48k_12k8 static void arm_resample_48k_12k8( struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) { static const int16_t alignas(int32_t) h[2*4*64] = { 0, -13, -25, -20, 10, 51, 71, 38, -47, -133, -145, -42, 139, 277, 242, 0, -329, -511, -351, 144, 698, 895, 450, -535, -1510, -1697, -521, 1999, 5138, 7737, 8744, 7737, 5138, 1999, -521, -1697, -1510, -535, 450, 895, 698, 144, -351, -511, -329, 0, 242, 277, 139, -42, -145, -133, -47, 38, 71, 51, 10, -20, -25, -13, 0, 0, 0, 0, 0, -9, -23, -24, 0, 41, 71, 52, -23, -115, -152, -78, 92, 254, 272, 76, -251, -493, -427, 0, 576, 900, 624, -262, -1309, -1763, -954, 1272, 4356, 7203, 8679, 8169, 5886, 2767, 0, -1542, -1660, -809, 240, 848, 796, 292, -252, -507, -398, -82, 199, 288, 183, 0, -130, -145, -71, 20, 69, 60, 20, -15, -26, -17, -3, 0, 0, 0, 0, -6, -20, -26, -8, 31, 67, 62, 0, -94, -152, -108, 45, 223, 287, 143, -167, -454, -480, -134, 439, 866, 758, 0, -1071, -1748, -1295, 601, 3559, 6580, 8485, 8485, 6580, 3559, 601, -1295, -1748, -1071, 0, 758, 866, 439, -134, -480, -454, -167, 143, 287, 223, 45, -108, -152, -94, 0, 62, 67, 31, -8, -26, -20, -6, 0, 0, 0, 0, -3, -17, -26, -15, 20, 60, 69, 20, -71, -145, -130, 0, 183, 288, 199, -82, -398, -507, -252, 292, 796, 848, 240, -809, -1660, -1542, 0, 2767, 5886, 8169, 8679, 7203, 4356, 1272, -954, -1763, -1309, -262, 624, 900, 576, 0, -427, -493, -251, 76, 272, 254, 92, -78, -152, -115, -23, 52, 71, 41, 0, -24, -23, -9, 0, 0, 0, 0, 0, -13, -25, -20, 10, 51, 71, 38, -47, -133, -145, -42, 139, 277, 242, 0, -329, -511, -351, 144, 698, 895, 450, -535, -1510, -1697, -521, 1999, 5138, 7737, 8744, 7737, 5138, 1999, -521, -1697, -1510, -535, 450, 895, 698, 144, -351, -511, -329, 0, 242, 277, 139, -42, -145, -133, -47, 38, 71, 51, 10, -20, -25, -13, 0, 0, 0, 0, 0, -9, -23, -24, 0, 41, 71, 52, -23, -115, -152, -78, 92, 254, 272, 76, -251, -493, -427, 0, 576, 900, 624, -262, -1309, -1763, -954, 1272, 4356, 7203, 8679, 8169, 5886, 2767, 0, -1542, -1660, -809, 240, 848, 796, 292, -252, -507, -398, -82, 199, 288, 183, 0, -130, -145, -71, 20, 69, 60, 20, -15, -26, -17, -3, 0, 0, 0, 0, -6, -20, -26, -8, 31, 67, 62, 0, -94, -152, -108, 45, 223, 287, 143, -167, -454, -480, -134, 439, 866, 758, 0, -1071, -1748, -1295, 601, 3559, 6580, 8485, 8485, 6580, 3559, 601, -1295, -1748, -1071, 0, 758, 866, 439, -134, -480, -454, -167, 143, 287, 223, 45, -108, -152, -94, 0, 62, 67, 31, -8, -26, -20, -6, 0, 0, 0, 0, -3, -17, -26, -15, 20, 60, 69, 20, -71, -145, -130, 0, 183, 288, 199, -82, -398, -507, -252, 292, 796, 848, 240, -809, -1660, -1542, 0, 2767, 5886, 8169, 8679, 7203, 4356, 1272, -954, -1763, -1309, -262, 624, 900, 576, 0, -427, -493, -251, 76, 272, 254, 92, -78, -152, -115, -23, 52, 71, 41, 0, -24, -23, -9, 0, 0, }; arm_resample_x192k_12k8( 4, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); } #ifndef TEST_ARM #define resample_48k_12k8 arm_resample_48k_12k8 #endif #endif /* resample_48k_12k8 */ /** * Return vector of correlations */ #ifndef correlate static void arm_correlate( const int16_t *a, const int16_t *b, int n, float *y, int nc) { /* --- Check alignment of `b` --- */ if ((uintptr_t)b & 3) *(y++) = dot(a, b--, n), nc--; /* --- Processing by pair --- */ for ( ; nc >= 2; nc -= 2) { const int16x2_t *an = (const int16x2_t *)(a ); const int16x2_t *bn = (const int16x2_t *)(b--); int16x2_t ax, b0, b1; int64_t v0 = 0, v1 = 0; b1 = (int16x2_t)*(b--) << 16; for (int i = 0; i < (n >> 4); i++ ) for (int j = 0; j < 4; j++) { ax = *(an++), b0 = *(bn++); v0 = __smlald (ax, b0, v0); v1 = __smlaldx(ax, __pkhbt(b0, b1), v1); ax = *(an++), b1 = *(bn++); v0 = __smlald (ax, b1, v0); v1 = __smlaldx(ax, __pkhbt(b1, b0), v1); } *(y++) = (float)((int32_t)((v0 + (1 << 5)) >> 6)); *(y++) = (float)((int32_t)((v1 + (1 << 5)) >> 6)); } /* --- Odd element count --- */ if (nc > 0) *(y++) = dot(a, b, n); } #ifndef TEST_ARM #define correlate arm_correlate #endif #endif /* correlate */ #endif /* __ARM_FEATURE_SIMD32 */