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/*
* LIBOIL - Library of Optimized Inner Loops
* Copyright (c) 2001,2002,2003,2004 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"
#include <math.h>
/**
* oil_conv8x8_s16_f64:
* @d_8x8:
* @dstr:
* @s_8x8:
* @sstr:
*
* Converts elements in source array @s_8x8 to the destination
* type, placing the results in @d_8x8.
*/
OIL_DEFINE_CLASS (conv8x8_s16_f64,
"int16_t * d_8x8, int dstr, double *s_8x8, int sstr");
/**
* oil_conv8x8_f64_s16:
* @d_8x8:
* @dstr:
* @s_8x8:
* @sstr:
*
* Converts elements in source array @s_8x8 to the destination
* type, placing the results in @d_8x8. The conversion of source
* values outside the destination range are undefined and
* implementation dependent.
*/
OIL_DEFINE_CLASS (conv8x8_f64_s16,
"double *d_8x8, int dstr, int16_t * s_8x8, int sstr");
/**
* oil_clipconv8x8_u8_s16:
* @d_8x8:
* @dstr:
* @s_8x8:
* @sstr:
*
* Converts elements in source array @s_8x8 to the destination
* type, placing the results in @d_8x8. Source values outside
* the destination range are clipped to the destination range.
*/
OIL_DEFINE_CLASS (clipconv8x8_u8_s16,
"uint8_t * d_8x8, int dstr, int16_t * s_8x8, int sstr");
#define BLOCK8x8_F64(ptr, stride, row, column) \
(*((double *)((void *)ptr + stride*row) + column))
#define BLOCK8x8_PTR_F64(ptr, stride, row, column) \
((double *)((void *)ptr + stride*row) + column)
#define BLOCK8x8_S16(ptr, stride, row, column) \
(*((int16_t *)((void *)ptr + stride*row) + column))
#define BLOCK8x8_U8(ptr, stride, row, column) \
(*((uint8_t *)((void *)ptr + stride*row) + column))
static void
conv8x8_s16_f64_c (int16_t * dest, int dstr, double *src, int sstr)
{
int i, j;
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++) {
BLOCK8x8_S16 (dest, dstr, i, j) = rint (BLOCK8x8_F64 (src, sstr, i, j));
}
}
}
OIL_DEFINE_IMPL_REF (conv8x8_s16_f64_c, conv8x8_s16_f64);
static void
conv8x8_f64_s16_c (double *dest, int dstr, int16_t * src, int sstr)
{
int i, j;
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++) {
BLOCK8x8_F64 (dest, dstr, i, j) = BLOCK8x8_S16 (src, sstr, i, j);
}
}
}
OIL_DEFINE_IMPL_REF (conv8x8_f64_s16_c, conv8x8_f64_s16);
static void
clipconv8x8_u8_s16_c (uint8_t * dest, int dstr, int16_t * src, int sstr)
{
int i, j;
int16_t x;
for (i = 0; i < 8; i++) {
for (j = 0; j < 8; j++) {
x = BLOCK8x8_S16 (src, sstr, i, j);
if (x < 0)
x = 0;
if (x > 255)
x = 255;
BLOCK8x8_U8 (dest, dstr, i, j) = x;
}
}
}
OIL_DEFINE_IMPL_REF (clipconv8x8_u8_s16_c, clipconv8x8_u8_s16);
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