cduvivier@google.com 20cb6b684b Optimization of 'rftfsub':
* scalar optimization, vectorization (including new file for SSE2 code
  and path selection mechanism).
* 0.5% AEC overall speedup for the straight C path.
* 3.0% AEC overall speedup for the SSE2 path.
Review URL: http://webrtc-codereview.appspot.com/46005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@134 4adac7df-926f-26a2-2b94-8c16560cd09d
2011-06-30 01:22:19 +00:00

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C

/*
* Copyright (c) 2011 The WebRTC 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.
*/
// code path selection function pointers
typedef void (*rftfsub_128_t)(float *a, float *c);
extern rftfsub_128_t rftfsub_128;
// entry points
void aec_rdft_init(void);
void aec_rdft_init_sse2(void);
void aec_rdft_128(int, float *, int *, float *);