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https://github.com/xiph/opus.git
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0b0a2b4d06
Optimize celt_pitch_xcorr function (for floating point) using ARM NEON intrinsics for SoCs that have NEON VFP unit. To enable this optimization, use --enable-intrinsics configure option. Compile time and runtime checks are also supported to make sure this optimization is only enabled when the compiler supports NEON intrinsics. Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/* Copyright (c) 2010 Xiph.Org Foundation
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* Copyright (c) 2013 Parrot */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CPU_SUPPORT_H
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#define CPU_SUPPORT_H
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#include "opus_types.h"
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#include "opus_defines.h"
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#if defined(OPUS_HAVE_RTCD) && \
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(defined(OPUS_ARM_ASM) || defined(OPUS_ARM_NEON_INTR))
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#include "arm/armcpu.h"
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/* We currently support 4 ARM variants:
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* arch[0] -> ARMv4
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* arch[1] -> ARMv5E
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* arch[2] -> ARMv6
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* arch[3] -> NEON
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*/
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#define OPUS_ARCHMASK 3
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#elif defined(OPUS_X86_MAY_HAVE_SSE2) || defined(OPUS_X86_MAY_HAVE_SSE4_1)
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#include "x86/x86cpu.h"
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/* We currently support 3 x86 variants:
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* arch[0] -> non-sse
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* arch[1] -> sse2
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* arch[2] -> sse4.1
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* arch[3] -> NULL
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*/
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#define OPUS_ARCHMASK 3
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int opus_select_arch(void);
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#else
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#define OPUS_ARCHMASK 0
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static OPUS_INLINE int opus_select_arch(void)
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{
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return 0;
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}
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#endif
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#endif
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