/*
* 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.
*/
//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <liboil/liboilfunction.h>
#include "liboil/simdpack/simdpack.h"
#include <math.h>
static void mix_u8_fast(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
{
while(n>0){
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
n--;
}
}
OIL_DEFINE_IMPL (mix_u8_fast, mix_u8);
static void
mix_u8_fast2 (uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
{
while(n>0){
*dest++ = ((*src1 - *src2) * *scale + *src2 * 255)>>8;
src1++;
src2++;
scale++;
n--;
}
}
OIL_DEFINE_IMPL (mix_u8_fast2, mix_u8);
/* PowerPC likes this one */
static void
mix_u8_fast3(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
{
int i;
for(i=0;i<n;i++){
dest[i] = ((src1[i] - src2[i]) * scale[i] + src2[i] * 255)>>8;
}
}
OIL_DEFINE_IMPL (mix_u8_fast3, mix_u8);
static void
mix_u8_unroll4(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
{
while(n&0x3){
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
n--;
}
while(n>0){
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
*dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
src1++;
src2++;
scale++;
n-=4;
}
}
OIL_DEFINE_IMPL (mix_u8_unroll4, mix_u8);
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_mix_u8_fast() {
return &_oil_function_impl_mix_u8_fast;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_mix_u8_fast2() {
return &_oil_function_impl_mix_u8_fast2;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_mix_u8_fast3() {
return &_oil_function_impl_mix_u8_fast3;
}
#endif
#ifdef __SYMBIAN32__
OilFunctionImpl* __oil_function_impl_mix_u8_unroll4() {
return &_oil_function_impl_mix_u8_unroll4;
}
#endif