1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/simdpack/mix_u8.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,135 @@
1.4 +/*
1.5 + * LIBOIL - Library of Optimized Inner Loops
1.6 + * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
1.7 + * All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions
1.11 + * are met:
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + * 2. Redistributions in binary form must reproduce the above copyright
1.15 + * notice, this list of conditions and the following disclaimer in the
1.16 + * documentation and/or other materials provided with the distribution.
1.17 + *
1.18 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1.19 + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1.20 + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.21 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
1.22 + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1.23 + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1.24 + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.25 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1.26 + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1.27 + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.28 + * POSSIBILITY OF SUCH DAMAGE.
1.29 + */
1.30 +//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
1.31 +
1.32 +#ifdef HAVE_CONFIG_H
1.33 +#include "config.h"
1.34 +#endif
1.35 +
1.36 +#include <liboil/liboilfunction.h>
1.37 +#include "liboil/simdpack/simdpack.h"
1.38 +#include <math.h>
1.39 +
1.40 +static void mix_u8_fast(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
1.41 +{
1.42 + while(n>0){
1.43 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.44 + src1++;
1.45 + src2++;
1.46 + scale++;
1.47 + n--;
1.48 + }
1.49 +}
1.50 +OIL_DEFINE_IMPL (mix_u8_fast, mix_u8);
1.51 +
1.52 +static void
1.53 +mix_u8_fast2 (uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
1.54 +{
1.55 + while(n>0){
1.56 + *dest++ = ((*src1 - *src2) * *scale + *src2 * 255)>>8;
1.57 + src1++;
1.58 + src2++;
1.59 + scale++;
1.60 + n--;
1.61 + }
1.62 +}
1.63 +OIL_DEFINE_IMPL (mix_u8_fast2, mix_u8);
1.64 +
1.65 +/* PowerPC likes this one */
1.66 +static void
1.67 +mix_u8_fast3(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
1.68 +{
1.69 + int i;
1.70 +
1.71 + for(i=0;i<n;i++){
1.72 + dest[i] = ((src1[i] - src2[i]) * scale[i] + src2[i] * 255)>>8;
1.73 + }
1.74 +}
1.75 +OIL_DEFINE_IMPL (mix_u8_fast3, mix_u8);
1.76 +
1.77 +static void
1.78 +mix_u8_unroll4(uint8_t *dest, uint8_t *src1, uint8_t *src2, uint8_t *scale, int n)
1.79 +{
1.80 + while(n&0x3){
1.81 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.82 + src1++;
1.83 + src2++;
1.84 + scale++;
1.85 + n--;
1.86 + }
1.87 + while(n>0){
1.88 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.89 + src1++;
1.90 + src2++;
1.91 + scale++;
1.92 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.93 + src1++;
1.94 + src2++;
1.95 + scale++;
1.96 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.97 + src1++;
1.98 + src2++;
1.99 + scale++;
1.100 + *dest++ = (*src1 * *scale + *src2 * (255 - *scale))>>8;
1.101 + src1++;
1.102 + src2++;
1.103 + scale++;
1.104 + n-=4;
1.105 + }
1.106 +}
1.107 +OIL_DEFINE_IMPL (mix_u8_unroll4, mix_u8);
1.108 +
1.109 +
1.110 +
1.111 +#ifdef __SYMBIAN32__
1.112 +
1.113 +OilFunctionImpl* __oil_function_impl_mix_u8_fast() {
1.114 + return &_oil_function_impl_mix_u8_fast;
1.115 +}
1.116 +#endif
1.117 +
1.118 +#ifdef __SYMBIAN32__
1.119 +
1.120 +OilFunctionImpl* __oil_function_impl_mix_u8_fast2() {
1.121 + return &_oil_function_impl_mix_u8_fast2;
1.122 +}
1.123 +#endif
1.124 +
1.125 +#ifdef __SYMBIAN32__
1.126 +
1.127 +OilFunctionImpl* __oil_function_impl_mix_u8_fast3() {
1.128 + return &_oil_function_impl_mix_u8_fast3;
1.129 +}
1.130 +#endif
1.131 +
1.132 +#ifdef __SYMBIAN32__
1.133 +
1.134 +OilFunctionImpl* __oil_function_impl_mix_u8_unroll4() {
1.135 + return &_oil_function_impl_mix_u8_unroll4;
1.136 +}
1.137 +#endif
1.138 +