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/*
* LIBOIL - Library of Optimized Inner Loops
* Copyright (c) 2004 David A. Schleef <ds@schleef.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <liboil/liboil.h>
#include "liboil/conv/conv.h"
#define REGISTER_IMPL(name,klass) do { \
static OilFunctionImpl impl = { \
NULL, \
NULL, \
name, \
0, \
#name, \
0, \
0 \
}; \
oil_class_register_impl_by_name ( #klass , &impl); \
} while(0)
void
conv_s16_f32_asm1 (int16_t *dest, int dstr, float *src, int sstr, int n)
{
int i;
int16_t tmp[2];
const float constants[][2] = {
{ -0.5, -0.5 },
{ -1.0, -1.0 }
};
for(i=0;i<n;i++){
asm volatile(
" movq 0(%0), %%mm0 \n"
" pfadd 0(%2), %%mm0 \n"
" pf2id %%mm0, %%mm1 \n"
" pfcmpgt 0(%2), %%mm0 \n"
" psubd %%mm0, %%mm1 \n"
" movd %%mm1, 0(%1) \n"
:
: "r" (src), "r" (tmp), "r" (constants)
: "mm0"
);
dest[0] = tmp[0];
dest = OIL_OFFSET(dest, dstr);
src = OIL_OFFSET(src, sstr);
}
asm volatile ("emms");
}
void
register_impls (void)
{
REGISTER_IMPL(conv_s16_f32_asm1, conv_s16_f32);
}
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