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/*
* LIBOIL - Library of Optimized Inner Loops
* Copyright (c) 2003,2004 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 "jpeg.h"
/**
* oil_dequantize8x8_s16:
* @d_8x8:
* @dstr:
* @s1_8x8:
* @sstr1:
* @s2_8x8:
*
* Multiplies each element in @s1_8x8 by the corresponding element
* in @s2_8x8 and places the result in @d_8x8.
*/
OIL_DEFINE_CLASS (dequantize8x8_s16,
"int16_t *d_8x8, int dstr, int16_t *s1_8x8, int sstr1, "
"int16_t *s2_8x8, int sstr2");
#define BLOCK8x8_S16(ptr, stride, row, column) \
(*((int16_t *)((void *)ptr + stride*row) + column))
static void
dequantize8x8_s16_ref (int16_t *dest, int dstr, int16_t *src, int sstr,
int16_t *quant, int qstr)
{
int i,j;
for(i=0;i<8;i++){
for(j=0;j<8;j++){
BLOCK8x8_S16(dest,dstr,i,j) =
BLOCK8x8_S16(src,sstr,i,j) *
BLOCK8x8_S16(quant,qstr,i,j);
}
}
}
OIL_DEFINE_IMPL_REF (dequantize8x8_s16_ref, dequantize8x8_s16);
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