1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/fdct8x8s_s16.c	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,127 @@
     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 +
    1.40 +
    1.41 +
    1.42 +#define C0_9808 0.980785280
    1.43 +#define C0_9239 0.923879532
    1.44 +#define C0_8315 0.831469612
    1.45 +#define C0_7071 0.707106781
    1.46 +#define C0_5556 0.555570233
    1.47 +#define C0_3827 0.382683432
    1.48 +#define C0_1951 0.195090322
    1.49 +
    1.50 +/**
    1.51 + * oil_fdct8x8s_s16:
    1.52 + * @d_8x8:
    1.53 + * @ds:
    1.54 + * @s_8x8:
    1.55 + * @ss:
    1.56 + *
    1.57 + * Performs a 2-D Forward Discrete Cosine Transform on @s_8x8 and places
    1.58 + * the result in @d_8x8.
    1.59 + *
    1.60 + * This function uses an alternate scaling used by RTjpeg.
    1.61 + */
    1.62 +OIL_DEFINE_CLASS(fdct8x8s_s16,
    1.63 +    "int16_t *d_8x8, int ds, int16_t *s_8x8, int ss");
    1.64 +
    1.65 +#if defined(oil_fdct8x8_f64) && defined(oil_conv8x8_s16_f64)
    1.66 +static void
    1.67 +fdct8x8s_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr)
    1.68 +{
    1.69 +	double s[64], d[64];
    1.70 +	double scale[8] = {
    1.71 +		4*C0_7071,
    1.72 +		4*C0_9808,
    1.73 +		4*C0_9239,
    1.74 +		4*C0_8315,
    1.75 +		4*C0_7071,
    1.76 +		4*C0_5556,
    1.77 +		4*C0_3827,
    1.78 +		4*C0_1951,
    1.79 +	};
    1.80 +	int i,j;
    1.81 +
    1.82 +	for(i=0;i<8;i++){
    1.83 +		for(j=0;j<8;j++){
    1.84 +			s[8*i+j] = OIL_GET (src,sstr*i+j*sizeof(int16_t), int16_t);
    1.85 +		}
    1.86 +	}
    1.87 +
    1.88 +	oil_fdct8x8_f64(d,8*sizeof(double),s,8*sizeof(double));
    1.89 +
    1.90 +	for(i=0;i<8;i++){
    1.91 +		for(j=0;j<8;j++){
    1.92 +			d[8*i+j] *= scale[i] * scale[j];
    1.93 +		}
    1.94 +	}
    1.95 +
    1.96 +	oil_conv8x8_s16_f64(dest,dstr,d,8*sizeof(double));
    1.97 +}
    1.98 +
    1.99 +OIL_DEFINE_IMPL_REF (fdct8x8s_s16_ref, fdct8x8s_s16);
   1.100 +#endif
   1.101 +
   1.102 +
   1.103 +
   1.104 +
   1.105 +#ifdef	__SYMBIAN32__
   1.106 + 
   1.107 +OilFunctionClass* __oil_function_class_fdct8x8s_s16() {
   1.108 +		return &_oil_function_class_fdct8x8s_s16;
   1.109 +}
   1.110 +#endif
   1.111 +
   1.112 +
   1.113 +
   1.114 +#ifdef	__SYMBIAN32__
   1.115 + 
   1.116 +OilFunctionImpl* __oil_function_impl_fdct8x8s_s16_ref() {
   1.117 +		return &_oil_function_impl_fdct8x8s_s16_ref;
   1.118 +}
   1.119 +#endif
   1.120 +
   1.121 +
   1.122 +
   1.123 +#ifdef	__SYMBIAN32__
   1.124 + 
   1.125 +EXPORT_C void** _oil_function_class_ptr_fdct8x8s_s16 ()	{
   1.126 +	oil_function_class_ptr_fdct8x8s_s16 = __oil_function_class_fdct8x8s_s16();
   1.127 +	return &oil_function_class_ptr_fdct8x8s_s16->func;
   1.128 +	}
   1.129 +#endif
   1.130 +