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99cf930f9a
Patch f147b174 "sigproc: Make convolution and convert input buffers
immutable" changed the internal conversion interface with the addition
of the const type qualifier. This change was not reflected on ARM builds
which led to build failure. Add const qualifier to resolve build issue.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/*
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* NEON type conversions
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* Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <malloc.h>
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#include <string.h>
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#include "convert.h"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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void neon_convert_ps_si16_4n(short *, const float *, const float *, int);
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void neon_convert_si16_ps_4n(float *, const short *, int);
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#ifndef HAVE_NEON
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static void convert_si16_ps(float *out, const short *in, int len)
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{
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for (int i = 0; i < len; i++)
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out[i] = in[i];
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}
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static void convert_ps_si16(short *out, const float *in, float scale, int len)
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{
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for (int i = 0; i < len; i++)
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out[i] = in[i] * scale;
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}
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#else
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/* 4*N 16-bit signed integer conversion with remainder */
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static void neon_convert_si16_ps(float *out,
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const short *in,
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int len)
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{
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int start = len / 4 * 4;
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neon_convert_si16_ps_4n(out, in, len >> 2);
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for (int i = 0; i < len % 4; i++)
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out[start + i] = (float) in[start + i];
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}
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/* 4*N 16-bit signed integer conversion with remainder */
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static void neon_convert_ps_si16(short *out,
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const float *in,
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const float *scale,
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int len)
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{
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int start = len / 4 * 4;
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neon_convert_ps_si16_4n(out, in, scale, len >> 2);
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for (int i = 0; i < len % 4; i++)
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out[start + i] = (short) (in[start + i] * (*scale));
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}
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#endif
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void convert_float_short(short *out, const float *in, float scale, int len)
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{
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#ifdef HAVE_NEON
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float q[4] = { scale, scale, scale, scale };
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if (len % 4)
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neon_convert_ps_si16(out, in, q, len);
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else
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neon_convert_ps_si16_4n(out, in, q, len >> 2);
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#else
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convert_ps_si16(out, in, scale, len);
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#endif
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}
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void convert_short_float(float *out, const short *in, int len)
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{
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#ifdef HAVE_NEON
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if (len % 4)
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neon_convert_si16_ps(out, in, len);
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else
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neon_convert_si16_ps_4n(out, in, len >> 2);
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#else
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convert_si16_ps(out, in, len);
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#endif
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}
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