cannam@154: /* Copyright (c) 2015 Xiph.Org Foundation
cannam@154:    Written by Viswanath Puttagunta */
cannam@154: /**
cannam@154:    @file arm_mdct.h
cannam@154:    @brief ARM Neon Intrinsic optimizations for mdct using NE10 library
cannam@154:  */
cannam@154: 
cannam@154: /*
cannam@154:    Redistribution and use in source and binary forms, with or without
cannam@154:    modification, are permitted provided that the following conditions
cannam@154:    are met:
cannam@154: 
cannam@154:    - Redistributions of source code must retain the above copyright
cannam@154:    notice, this list of conditions and the following disclaimer.
cannam@154: 
cannam@154:    - Redistributions in binary form must reproduce the above copyright
cannam@154:    notice, this list of conditions and the following disclaimer in the
cannam@154:    documentation and/or other materials provided with the distribution.
cannam@154: 
cannam@154:    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
cannam@154:    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
cannam@154:    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
cannam@154:    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
cannam@154:    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
cannam@154:    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
cannam@154:    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
cannam@154:    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
cannam@154:    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
cannam@154:    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
cannam@154:    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cannam@154: */
cannam@154: 
cannam@154: #if !defined(MDCT_ARM_H)
cannam@154: #define MDCT_ARM_H
cannam@154: 
cannam@154: #include "mdct.h"
cannam@154: 
cannam@154: #if defined(HAVE_ARM_NE10)
cannam@154: /** Compute a forward MDCT and scale by 4/N, trashes the input array */
cannam@154: void clt_mdct_forward_neon(const mdct_lookup *l, kiss_fft_scalar *in,
cannam@154:                            kiss_fft_scalar * OPUS_RESTRICT out,
cannam@154:                            const opus_val16 *window, int overlap,
cannam@154:                            int shift, int stride, int arch);
cannam@154: 
cannam@154: void clt_mdct_backward_neon(const mdct_lookup *l, kiss_fft_scalar *in,
cannam@154:                             kiss_fft_scalar * OPUS_RESTRICT out,
cannam@154:                             const opus_val16 *window, int overlap,
cannam@154:                             int shift, int stride, int arch);
cannam@154: 
cannam@154: #if !defined(OPUS_HAVE_RTCD)
cannam@154: #define OVERRIDE_OPUS_MDCT (1)
cannam@154: #define clt_mdct_forward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \
cannam@154:       clt_mdct_forward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch)
cannam@154: #define clt_mdct_backward(_l, _in, _out, _window, _int, _shift, _stride, _arch) \
cannam@154:       clt_mdct_backward_neon(_l, _in, _out, _window, _int, _shift, _stride, _arch)
cannam@154: #endif /* OPUS_HAVE_RTCD */
cannam@154: #endif /* HAVE_ARM_NE10 */
cannam@154: 
cannam@154: #endif