1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/idct8x8_c.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,355 @@
1.4 +/*
1.5 + * LIBOIL - Library of Optimized Inner Loops
1.6 + * Copyright (c) 2001,2002,2003,2004 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/liboil.h>
1.37 +#include "liboil/dct/dct.h"
1.38 +#include <math.h>
1.39 +#include <liboil/liboiltest.h>
1.40 +#include <liboil/liboilparameter.h>
1.41 +#include <liboil/liboilrandom.h>
1.42 +
1.43 +/**
1.44 + * SECTION:liboilfuncs-dct:
1.45 + * @title: Direct Cosine Transform
1.46 + * @short_description: DCT related functions
1.47 + */
1.48 +
1.49 +#define BLOCK8x8_F64(ptr, stride, row, column) \
1.50 + (*((double *)((unsigned char *)ptr + stride*row) + column))
1.51 +
1.52 +#define BLOCK8x8_PTR_F64(ptr, stride, row, column) \
1.53 + ((double *)((unsigned char *)ptr + stride*row) + column)
1.54 +
1.55 +#define BLOCK8x8_S16(ptr, stride, row, column) \
1.56 + (*((int16_t *)((unsigned char *)ptr + stride*row) + column))
1.57 +
1.58 +static void
1.59 +idct8x8_test (OilTest *test)
1.60 +{
1.61 + int16_t *data = oil_test_get_source_data (test, OIL_ARG_SRC1);
1.62 + int stride = oil_test_get_value (test, OIL_ARG_SSTR1);
1.63 + int i, j;
1.64 +
1.65 + for(j=0;j<8;j++){
1.66 + for(i=0;i<8;i++){
1.67 + OIL_GET(data, i*2 + j*stride, int16_t) = (oil_rand_s16() & 0xfff) - 2048;
1.68 + }
1.69 + }
1.70 +}
1.71 +
1.72 +/**
1.73 + * oil_idct8x8_f64:
1.74 + * @d_8x8:
1.75 + * @dstr:
1.76 + * @s_8x8:
1.77 + * @sstr:
1.78 + *
1.79 + * Performs a 2-D Inverse Discrete Cosine Transform on @s_8x8 and places
1.80 + * the result in @d_8x8.
1.81 + */
1.82 +OIL_DEFINE_CLASS (idct8x8_f64, "double *d_8x8, int dstr, double *s_8x8, int sstr");
1.83 +/**
1.84 + * oil_idct8x8lim10_f64:
1.85 + * @d_8x8:
1.86 + * @dstr:
1.87 + * @s_8x8:
1.88 + * @sstr:
1.89 + *
1.90 + * Performs a 2-D Inverse Discrete Cosine Transform on @s_8x8 and places
1.91 + * the result in @d_8x8.
1.92 + */
1.93 +OIL_DEFINE_CLASS (idct8x8lim10_f64, "double *d_8x8, int dstr, double *s_8x8, int sstr");
1.94 +/**
1.95 + * oil_idct8x8_s16:
1.96 + * @d_8x8:
1.97 + * @dstr:
1.98 + * @s_8x8:
1.99 + * @sstr:
1.100 + *
1.101 + * Performs a limited 2-D Inverse Discrete Cosine Transform on @s_8x8
1.102 + * and places the result in @d_8x8.
1.103 + */
1.104 +OIL_DEFINE_CLASS_FULL (idct8x8_s16, "int16_t *d_8x8, int dstr, int16_t *s_8x8, int sstr", idct8x8_test);
1.105 +/**
1.106 + * oil_idct8x8lim10_s16:
1.107 + * @d_8x8:
1.108 + * @dstr:
1.109 + * @s_8x8:
1.110 + * @sstr:
1.111 + *
1.112 + * Performs a limited 2-D Inverse Discrete Cosine Transform on @s_8x8
1.113 + * and places the result in @d_8x8. The source 8x8 block must be non-zero
1.114 + * only in the 10 lowest-order components.
1.115 + */
1.116 +OIL_DEFINE_CLASS (idct8x8lim10_s16, "int16_t *d_8x8, int dstr, int16_t *s_8x8, int sstr");
1.117 +
1.118 +static void
1.119 +idct8x8_f64_ref (double *dest, int dstr, const double *src, int sstr)
1.120 +{
1.121 + static double idct_coeff[8][8];
1.122 + static int idct_coeff_init = 0;
1.123 + int i,j,k,l;
1.124 + double tmp1,tmp2;
1.125 +
1.126 + if(!idct_coeff_init){
1.127 + double scale;
1.128 +
1.129 + for(i=0;i<8;i++){
1.130 + scale = (i==0) ? sqrt(0.125) : 0.5;
1.131 + for(j=0;j<8;j++){
1.132 + idct_coeff[j][i] = scale *
1.133 + cos((M_PI/8)*i*(j+0.5));
1.134 + }
1.135 + }
1.136 + idct_coeff_init = 1;
1.137 + }
1.138 +
1.139 + for(i=0;i<8;i++){
1.140 + for(j=0;j<8;j++){
1.141 + tmp1 = 0;
1.142 + for(k=0;k<8;k++){
1.143 + tmp2 = 0;
1.144 + for(l=0;l<8;l++){
1.145 + tmp2 += idct_coeff[j][l] *
1.146 + BLOCK8x8_F64(src,sstr,k,l);
1.147 + }
1.148 + tmp1 += idct_coeff[i][k] * tmp2;
1.149 + }
1.150 + BLOCK8x8_F64(dest,dstr,i,j) = tmp1;
1.151 + }
1.152 + }
1.153 +}
1.154 +OIL_DEFINE_IMPL_REF (idct8x8_f64_ref, idct8x8_f64);
1.155 +
1.156 +static void
1.157 +idct8x8lim10_f64_ref (double *dest, int dstr, const double *src, int sstr)
1.158 +{
1.159 + static double idct_coeff[8][8];
1.160 + static int idct_coeff_init = 0;
1.161 + int i,j,k,l;
1.162 + double tmp1,tmp2;
1.163 +
1.164 + if(!idct_coeff_init){
1.165 + double scale;
1.166 +
1.167 + for(i=0;i<8;i++){
1.168 + scale = (i==0) ? sqrt(0.125) : 0.5;
1.169 + for(j=0;j<8;j++){
1.170 + idct_coeff[j][i] = scale *
1.171 + cos((M_PI/8)*i*(j+0.5));
1.172 + }
1.173 + }
1.174 + idct_coeff_init = 1;
1.175 + }
1.176 +
1.177 + for(i=0;i<8;i++){
1.178 + for(j=0;j<8;j++){
1.179 + tmp1 = 0;
1.180 + for(k=0;k<4;k++){
1.181 + tmp2 = 0;
1.182 + for(l=0;l<4;l++){
1.183 + tmp2 += idct_coeff[j][l] *
1.184 + BLOCK8x8_F64(src,sstr,k,l);
1.185 + }
1.186 + tmp1 += idct_coeff[i][k] * tmp2;
1.187 + }
1.188 + BLOCK8x8_F64(dest,dstr,i,j) = tmp1;
1.189 + }
1.190 + }
1.191 +}
1.192 +OIL_DEFINE_IMPL_REF (idct8x8lim10_f64_ref, idct8x8lim10_f64);
1.193 +
1.194 +#if defined(oil_idct8_f64)
1.195 +static void
1.196 +idct8x8_f64_c (double *dest, int dstr, const double *src, int sstr)
1.197 +{
1.198 + int i;
1.199 + double tmp[64];
1.200 + int tmpstr = 8*sizeof(double);
1.201 +
1.202 + for(i=0;i<8;i++){
1.203 + oil_idct8_f64(
1.204 + BLOCK8x8_PTR_F64(tmp,tmpstr,i,0), sizeof(double),
1.205 + BLOCK8x8_PTR_F64(src,sstr,i,0), sizeof(double));
1.206 + }
1.207 + for(i=0;i<8;i++){
1.208 + oil_idct8_f64(
1.209 + BLOCK8x8_PTR_F64(dest,dstr,0,i), dstr,
1.210 + BLOCK8x8_PTR_F64(tmp,tmpstr,0,i), tmpstr);
1.211 + }
1.212 +}
1.213 +
1.214 +OIL_DEFINE_IMPL_DEPENDS (idct8x8_f64_c, idct8x8_f64, idct8_f64);
1.215 +#endif
1.216 +
1.217 +#if defined(oil_conv8x8_f64_s16) && defined(oil_idct8x8_f64) && \
1.218 + defined(oil_conv8x8_s16_f64)
1.219 +static void
1.220 +idct8x8_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr)
1.221 +{
1.222 + double s[64], d[64];
1.223 +
1.224 + oil_conv8x8_f64_s16 (s,8*sizeof(double),src,sstr);
1.225 + oil_idct8x8_f64 (d,8*sizeof(double),s,8*sizeof(double));
1.226 + oil_conv8x8_s16_f64 (dest,dstr,d,8*sizeof(double));
1.227 +}
1.228 +
1.229 +OIL_DEFINE_IMPL_REF (idct8x8_s16_ref, idct8x8_s16);
1.230 +#if 0
1.231 +OIL_DEFINE_IMPL_DEPENDS (idct8x8_s16_ref, idct8x8_s16,
1.232 + conv8x8_f64_s16, idct8x8_f64, conv8x8_s16_f64);
1.233 +#endif
1.234 +#endif
1.235 +
1.236 +#if defined(oil_conv8x8_f64_s16) && defined(oil_idct8x8lim10_f64) && \
1.237 + defined(oil_conv8x8_s16_f64)
1.238 +static void
1.239 +idct8x8lim10_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr)
1.240 +{
1.241 + double s[64], d[64];
1.242 +
1.243 + oil_conv8x8_f64_s16 (s,8*sizeof(double),src,sstr);
1.244 + oil_idct8x8lim10_f64 (d,8*sizeof(double),s,8*sizeof(double));
1.245 + oil_conv8x8_s16_f64 (dest,dstr,d,8*sizeof(double));
1.246 +}
1.247 +
1.248 +OIL_DEFINE_IMPL_REF (idct8x8lim10_s16_ref, idct8x8lim10_s16);
1.249 +#if 0
1.250 +OIL_DEFINE_IMPL_DEPENDS (idct8x8_s16_ref, idct8x8_s16,
1.251 + conv8x8_f64_s16, idct8x8_f64, conv8x8_s16_f64);
1.252 +#endif
1.253 +#endif
1.254 +
1.255 +
1.256 +
1.257 +#ifdef __SYMBIAN32__
1.258 +
1.259 +OilFunctionClass* __oil_function_class_idct8x8_f64() {
1.260 + return &_oil_function_class_idct8x8_f64;
1.261 +}
1.262 +#endif
1.263 +
1.264 +#ifdef __SYMBIAN32__
1.265 +
1.266 +OilFunctionClass* __oil_function_class_idct8x8lim10_f64() {
1.267 + return &_oil_function_class_idct8x8lim10_f64;
1.268 +}
1.269 +#endif
1.270 +
1.271 +#ifdef __SYMBIAN32__
1.272 +
1.273 +OilFunctionClass* __oil_function_class_idct8x8_s16() {
1.274 + return &_oil_function_class_idct8x8_s16;
1.275 +}
1.276 +#endif
1.277 +
1.278 +#ifdef __SYMBIAN32__
1.279 +
1.280 +OilFunctionClass* __oil_function_class_idct8x8lim10_s16() {
1.281 + return &_oil_function_class_idct8x8lim10_s16;
1.282 +}
1.283 +#endif
1.284 +
1.285 +
1.286 +
1.287 +#ifdef __SYMBIAN32__
1.288 +
1.289 +OilFunctionImpl* __oil_function_impl_idct8x8_f64_ref() {
1.290 + return &_oil_function_impl_idct8x8_f64_ref;
1.291 +}
1.292 +#endif
1.293 +
1.294 +#ifdef __SYMBIAN32__
1.295 +
1.296 +OilFunctionImpl* __oil_function_impl_idct8x8lim10_f64_ref() {
1.297 + return &_oil_function_impl_idct8x8lim10_f64_ref;
1.298 +}
1.299 +#endif
1.300 +
1.301 +#ifdef __SYMBIAN32__
1.302 +
1.303 +OilFunctionImpl* __oil_function_impl_idct8x8_s16_ref() {
1.304 + return &_oil_function_impl_idct8x8_s16_ref;
1.305 +}
1.306 +#endif
1.307 +
1.308 +#ifdef __SYMBIAN32__
1.309 +
1.310 +OilFunctionImpl* __oil_function_impl_idct8x8lim10_s16_ref() {
1.311 + return &_oil_function_impl_idct8x8lim10_s16_ref;
1.312 +}
1.313 +#endif
1.314 +
1.315 +
1.316 +
1.317 +#ifdef __SYMBIAN32__
1.318 +
1.319 +OilFunctionImpl* __oil_function_impl_idct8x8_f64_c() {
1.320 + return &_oil_function_impl_idct8x8_f64_c;
1.321 +}
1.322 +#endif
1.323 +
1.324 +
1.325 +
1.326 +
1.327 +#ifdef __SYMBIAN32__
1.328 +
1.329 +EXPORT_C void** _oil_function_class_ptr_idct8x8_f64 () {
1.330 + oil_function_class_ptr_idct8x8_f64 = __oil_function_class_idct8x8_f64();
1.331 + return &oil_function_class_ptr_idct8x8_f64->func;
1.332 + }
1.333 +#endif
1.334 +
1.335 +#ifdef __SYMBIAN32__
1.336 +
1.337 +EXPORT_C void** _oil_function_class_ptr_idct8x8lim10_f64 () {
1.338 + oil_function_class_ptr_idct8x8lim10_f64 = __oil_function_class_idct8x8lim10_f64();
1.339 + return &oil_function_class_ptr_idct8x8lim10_f64->func;
1.340 + }
1.341 +#endif
1.342 +
1.343 +#ifdef __SYMBIAN32__
1.344 +
1.345 +EXPORT_C void** _oil_function_class_ptr_idct8x8_s16 () {
1.346 + oil_function_class_ptr_idct8x8_s16 = __oil_function_class_idct8x8_s16();
1.347 + return &oil_function_class_ptr_idct8x8_s16->func;
1.348 + }
1.349 +#endif
1.350 +
1.351 +#ifdef __SYMBIAN32__
1.352 +
1.353 +EXPORT_C void** _oil_function_class_ptr_idct8x8lim10_s16 () {
1.354 + oil_function_class_ptr_idct8x8lim10_s16 = __oil_function_class_idct8x8lim10_s16();
1.355 + return &oil_function_class_ptr_idct8x8lim10_s16->func;
1.356 + }
1.357 +#endif
1.358 +