Chris@69: /* Copyright (c) 2015 Xiph.Org Foundation
Chris@69:    Written by Viswanath Puttagunta */
Chris@69: /**
Chris@69:    @file arm_mdct.h
Chris@69:    @brief ARM Neon Intrinsic optimizations for mdct using NE10 library
Chris@69:  */
Chris@69: 
Chris@69: /*
Chris@69:    Redistribution and use in source and binary forms, with or without
Chris@69:    modification, are permitted provided that the following conditions
Chris@69:    are met:
Chris@69: 
Chris@69:    - Redistributions of source code must retain the above copyright
Chris@69:    notice, this list of conditions and the following disclaimer.
Chris@69: 
Chris@69:    - Redistributions in binary form must reproduce the above copyright
Chris@69:    notice, this list of conditions and the following disclaimer in the
Chris@69:    documentation and/or other materials provided with the distribution.
Chris@69: 
Chris@69:    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Chris@69:    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Chris@69:    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Chris@69:    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
Chris@69:    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Chris@69:    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
Chris@69:    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
Chris@69:    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
Chris@69:    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Chris@69:    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Chris@69:    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@69: */
Chris@69: 
Chris@69: #if !defined(MDCT_ARM_H)
Chris@69: #define MDCT_ARM_H
Chris@69: 
Chris@69: #include "mdct.h"
Chris@69: 
Chris@69: #if defined(HAVE_ARM_NE10)
Chris@69: /** Compute a forward MDCT and scale by 4/N, trashes the input array */
Chris@69: void clt_mdct_forward_neon(const mdct_lookup *l, kiss_fft_scalar *in,
Chris@69:                            kiss_fft_scalar * OPUS_RESTRICT out,
Chris@69:                            const opus_val16 *window, int overlap,
Chris@69:                            int shift, int stride, int arch);
Chris@69: 
Chris@69: void clt_mdct_backward_neon(const mdct_lookup *l, kiss_fft_scalar *in,
Chris@69:                             kiss_fft_scalar * OPUS_RESTRICT out,
Chris@69:                             const opus_val16 *window, int overlap,
Chris@69:                             int shift, int stride, int arch);
Chris@69: 
Chris@69: #if !defined(OPUS_HAVE_RTCD)
Chris@69: #define OVERRIDE_OPUS_MDCT (1)
Chris@69: #define clt_mdct_forward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \
Chris@69:       clt_mdct_forward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch)
Chris@69: #define clt_mdct_backward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \
Chris@69:       clt_mdct_backward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch)
Chris@69: #endif /* OPUS_HAVE_RTCD */
Chris@69: #endif /* HAVE_ARM_NE10 */
Chris@69: 
Chris@69: #endif