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gerrit.openfyde.cn / webrtc.googlesource.com / src / cd9b90ab539859034f0ffcac63b65e5939fb883e / . / webrtc / modules / audio_processing / aec / aec_rdft.h
blob: 94301601039ad22bcdaa29805e9cf0bd47b32e45 [file] [log] [blame]
niklase@google.com470e71d2011-07-07 08:21:25 +0000[diff] [blame]1/*
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
ajm@google.comce7c2a22011-08-04 01:50:00 +0000[diff] [blame]11#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC_MAIN_SOURCE_AEC_RDFT_H_
12#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC_MAIN_SOURCE_AEC_RDFT_H_
13
andrew@webrtc.org86b85db2011-09-19 18:48:25 +0000[diff] [blame]14// These intrinsics were unavailable before VS 2008.
15// TODO(andrew): move to a common file.
16#if defined(_MSC_VER) && _MSC_VER < 1500
17#include <emmintrin.h>
18static __inline __m128 _mm_castsi128_ps(__m128i a) { return *(__m128*)&a; }
19static __inline __m128i _mm_castps_si128(__m128 a) { return *(__m128i*)&a; }
20#endif
21
cduvivier@google.com0e07d822011-07-25 23:54:20 +0000[diff] [blame]22#ifdef _MSC_VER /* visual c++ */
andrew@webrtc.org13b2d462013-10-08 23:41:42 +0000[diff] [blame]23#define ALIGN16_BEG __declspec(align(16))
24#define ALIGN16_END
cduvivier@google.com0e07d822011-07-25 23:54:20 +0000[diff] [blame]25#else /* gcc or icc */
andrew@webrtc.org13b2d462013-10-08 23:41:42 +0000[diff] [blame]26#define ALIGN16_BEG
27#define ALIGN16_END __attribute__((aligned(16)))
cduvivier@google.com0e07d822011-07-25 23:54:20 +0000[diff] [blame]28#endif
29
niklase@google.com470e71d2011-07-07 08:21:25 +0000[diff] [blame]30// constants shared by all paths (C, SSE2).
31extern float rdft_w[64];
cduvivier@google.com0e07d822011-07-25 23:54:20 +0000[diff] [blame]32// constants used by the C path.
33extern float rdft_wk3ri_first[32];
34extern float rdft_wk3ri_second[32];
35// constants used by SSE2 but initialized in C path.
andrew@webrtc.org754de522014-01-23 20:55:14 +0000[diff] [blame]36extern ALIGN16_BEG float ALIGN16_END rdft_wk1r[32];
37extern ALIGN16_BEG float ALIGN16_END rdft_wk2r[32];
38extern ALIGN16_BEG float ALIGN16_END rdft_wk3r[32];
39extern ALIGN16_BEG float ALIGN16_END rdft_wk1i[32];
40extern ALIGN16_BEG float ALIGN16_END rdft_wk2i[32];
41extern ALIGN16_BEG float ALIGN16_END rdft_wk3i[32];
42extern ALIGN16_BEG float ALIGN16_END cftmdl_wk1r[4];
niklase@google.com470e71d2011-07-07 08:21:25 +0000[diff] [blame]43
44// code path selection function pointers
andrew@webrtc.org13b2d462013-10-08 23:41:42 +0000[diff] [blame]45typedef void (*rft_sub_128_t)(float* a);
niklase@google.com470e71d2011-07-07 08:21:25 +0000[diff] [blame]46extern rft_sub_128_t rftfsub_128;
47extern rft_sub_128_t rftbsub_128;
cduvivier@google.com0e07d822011-07-25 23:54:20 +0000[diff] [blame]48extern rft_sub_128_t cft1st_128;
cduvivier@google.com288c8692011-08-22 21:55:33 +0000[diff] [blame]49extern rft_sub_128_t cftmdl_128;
andrew@webrtc.orgc0907ef2014-02-21 00:13:31 +0000[diff] [blame]50extern rft_sub_128_t cftfsub_128;
51extern rft_sub_128_t cftbsub_128;
52extern rft_sub_128_t bitrv2_128;
niklase@google.com470e71d2011-07-07 08:21:25 +0000[diff] [blame]53
54// entry points
55void aec_rdft_init(void);
56void aec_rdft_init_sse2(void);
andrew@webrtc.org13b2d462013-10-08 23:41:42 +0000[diff] [blame]57void aec_rdft_forward_128(float* a);
58void aec_rdft_inverse_128(float* a);
ajm@google.comce7c2a22011-08-04 01:50:00 +0000[diff] [blame]59
andrew@webrtc.orgc0907ef2014-02-21 00:13:31 +0000[diff] [blame]60#if defined(MIPS_FPU_LE)
61void aec_rdft_init_mips(void);
62#endif
bjornv@webrtc.orgcd9b90a2014-06-30 12:05:18 +0000[diff] [blame^]63#if defined(WEBRTC_DETECT_ARM_NEON) || defined(WEBRTC_ARCH_ARM_NEON)
64void aec_rdft_init_neon(void);
65#endif
andrew@webrtc.orgc0907ef2014-02-21 00:13:31 +0000[diff] [blame]66
ajm@google.comce7c2a22011-08-04 01:50:00 +0000[diff] [blame]67#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC_MAIN_SOURCE_AEC_RDFT_H_