1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/fdct8x8_f64.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,202 @@
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/liboilfuncs.h>
1.38 +#include "liboil/dct/dct.h"
1.39 +#include <math.h>
1.40 +
1.41 +
1.42 +/**
1.43 + * oil_fdct8x8_f64:
1.44 + * @d_8x8:
1.45 + * @dstr:
1.46 + * @s_8x8:
1.47 + * @sstr:
1.48 + *
1.49 + * Performs a 2-D Forward Discrete Cosine Transform on @s_8x8 and places
1.50 + * the result in @d_8x8.
1.51 + */
1.52 +OIL_DEFINE_CLASS(fdct8x8_f64,
1.53 + "double *d_8x8, int dstr, double *s_8x8, int sstr");
1.54 +
1.55 +
1.56 +static void
1.57 +fdct8x8_f64_ref(double *dest, int dstr, const double *src, int sstr)
1.58 +{
1.59 + static double fdct_coeff[8][8];
1.60 + static int fdct_coeff_init = 0;
1.61 + int i,j,k,l;
1.62 + double tmp1,tmp2;
1.63 +
1.64 + if(!fdct_coeff_init){
1.65 + double scale;
1.66 +
1.67 + for(i=0;i<8;i++){
1.68 + scale = (i==0) ? sqrt(0.125) : 0.5;
1.69 + for(j=0;j<8;j++){
1.70 + fdct_coeff[j][i] = scale *
1.71 + cos((M_PI/8)*i*(j+0.5));
1.72 + }
1.73 + }
1.74 + fdct_coeff_init = 1;
1.75 + }
1.76 +
1.77 + for(i=0;i<8;i++){
1.78 + for(j=0;j<8;j++){
1.79 + tmp1 = 0;
1.80 + for(k=0;k<8;k++){
1.81 + tmp2 = 0;
1.82 + for(l=0;l<8;l++){
1.83 + tmp2 += fdct_coeff[l][j] *
1.84 + OIL_GET (src, sstr*k + l * sizeof(double),
1.85 + double);
1.86 + }
1.87 + tmp1 += fdct_coeff[k][i] * tmp2;
1.88 + }
1.89 + OIL_GET (dest, dstr*i + j*sizeof(double), double) =
1.90 + tmp1;
1.91 + }
1.92 + }
1.93 +}
1.94 +
1.95 +OIL_DEFINE_IMPL_REF (fdct8x8_f64_ref, fdct8x8_f64);
1.96 +
1.97 +static void
1.98 +fdct8x8_f64_ref2(double *dest, int dstr, const double *src, int sstr)
1.99 +{
1.100 + static double fdct_coeff[8][8];
1.101 + static int fdct_coeff_init = 0;
1.102 + int i,j,k;
1.103 + double x;
1.104 + double tmp[64];
1.105 +
1.106 + if(!fdct_coeff_init){
1.107 + double scale;
1.108 +
1.109 + for(i=0;i<8;i++){
1.110 + scale = (i==0) ? sqrt(0.125) : 0.5;
1.111 + for(j=0;j<8;j++){
1.112 + fdct_coeff[j][i] = scale *
1.113 + cos((M_PI/8)*i*(j+0.5));
1.114 + }
1.115 + }
1.116 + fdct_coeff_init = 1;
1.117 + }
1.118 +
1.119 + for(i=0;i<8;i++){
1.120 + for(j=0;j<8;j++){
1.121 + x = 0;
1.122 + for(k=0;k<8;k++){
1.123 + x += fdct_coeff[k][j] *
1.124 + OIL_GET (src, sstr*i + k * sizeof(double), double);
1.125 + }
1.126 + tmp[8*i+j] = x;
1.127 + }
1.128 + }
1.129 +
1.130 + for(j=0;j<8;j++){
1.131 + for(i=0;i<8;i++){
1.132 + x = 0;
1.133 + for(k=0;k<8;k++){
1.134 + x += fdct_coeff[k][i] * tmp[8*k + j];
1.135 + }
1.136 + OIL_GET (dest,dstr*i+j*sizeof(double), double) = x;
1.137 + }
1.138 + }
1.139 +}
1.140 +
1.141 +OIL_DEFINE_IMPL (fdct8x8_f64_ref2, fdct8x8_f64);
1.142 +
1.143 +#ifdef oil_fdct8_f64
1.144 +static void
1.145 +fdct8x8_f64_1d (double *dest, int dstr, const double *src, int sstr)
1.146 +{
1.147 + int i;
1.148 + double tmp[64];
1.149 +
1.150 + for(i=0;i<8;i++){
1.151 + oil_fdct8_f64(tmp + i*8, OIL_OFFSET(src,sstr*i),
1.152 + sizeof (double), sizeof(double));
1.153 + }
1.154 +
1.155 + for(i=0;i<8;i++){
1.156 + oil_fdct8_f64(dest + i, tmp + i,
1.157 + dstr, 8*sizeof(double));
1.158 + }
1.159 +}
1.160 +OIL_DEFINE_IMPL (fdct8x8_f64_1d, fdct8x8_f64);
1.161 +#endif
1.162 +
1.163 +
1.164 +
1.165 +
1.166 +#ifdef __SYMBIAN32__
1.167 +
1.168 +OilFunctionClass* __oil_function_class_fdct8x8_f64() {
1.169 + return &_oil_function_class_fdct8x8_f64;
1.170 +}
1.171 +#endif
1.172 +
1.173 +
1.174 +
1.175 +#ifdef __SYMBIAN32__
1.176 +
1.177 +OilFunctionImpl* __oil_function_impl_fdct8x8_f64_ref() {
1.178 + return &_oil_function_impl_fdct8x8_f64_ref;
1.179 +}
1.180 +#endif
1.181 +
1.182 +#ifdef __SYMBIAN32__
1.183 +
1.184 +OilFunctionImpl* __oil_function_impl_fdct8x8_f64_ref2() {
1.185 + return &_oil_function_impl_fdct8x8_f64_ref2;
1.186 +}
1.187 +#endif
1.188 +
1.189 +#ifdef __SYMBIAN32__
1.190 +
1.191 +OilFunctionImpl* __oil_function_impl_fdct8x8_f64_1d() {
1.192 + return &_oil_function_impl_fdct8x8_f64_1d;
1.193 +}
1.194 +#endif
1.195 +
1.196 +
1.197 +
1.198 +#ifdef __SYMBIAN32__
1.199 +
1.200 +EXPORT_C void** _oil_function_class_ptr_fdct8x8_f64 () {
1.201 + oil_function_class_ptr_fdct8x8_f64 = __oil_function_class_fdct8x8_f64();
1.202 + return &oil_function_class_ptr_fdct8x8_f64->func;
1.203 + }
1.204 +#endif
1.205 +