1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/imdct32_f32.c	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,93 @@
     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/dct/dct.h"
    1.38 +#include <math.h>
    1.39 +
    1.40 +
    1.41 +/**
    1.42 + * oil_imdct32_f32:
    1.43 + * @d_32:
    1.44 + * @s_32:
    1.45 + *
    1.46 + * Performs a Inverse Modified Discrete Cosine Transform (IMDCT)
    1.47 + * on the source array @s_32 and places the result in @d_32.
    1.48 + */
    1.49 +OIL_DEFINE_CLASS (imdct32_f32, "float *d_32, float *s_32");
    1.50 +
    1.51 +static void imdct32_f32_ref (float *dest, const float *src)
    1.52 +{
    1.53 +	double x;
    1.54 +	int i,j;
    1.55 +	double coeff;
    1.56 +
    1.57 +	for(i=0;i<32;i++){
    1.58 +		x = 0;
    1.59 +		for(j=0;j<32;j++){
    1.60 +			coeff = cos((M_PI/32)*i*(j+0.5));
    1.61 +			x += coeff * src[j];
    1.62 +		}
    1.63 +		dest[i] = x;
    1.64 +	}
    1.65 +}
    1.66 +
    1.67 +OIL_DEFINE_IMPL_REF (imdct32_f32_ref, imdct32_f32);
    1.68 +
    1.69 +
    1.70 +
    1.71 +#ifdef	__SYMBIAN32__
    1.72 + 
    1.73 +OilFunctionClass* __oil_function_class_imdct32_f32() {
    1.74 +		return &_oil_function_class_imdct32_f32;
    1.75 +}
    1.76 +#endif
    1.77 +
    1.78 +
    1.79 +
    1.80 +#ifdef	__SYMBIAN32__
    1.81 + 
    1.82 +OilFunctionImpl* __oil_function_impl_imdct32_f32_ref() {
    1.83 +		return &_oil_function_impl_imdct32_f32_ref;
    1.84 +}
    1.85 +#endif
    1.86 +
    1.87 +
    1.88 +
    1.89 +#ifdef	__SYMBIAN32__
    1.90 + 
    1.91 +EXPORT_C void** _oil_function_class_ptr_imdct32_f32 ()	{
    1.92 +	oil_function_class_ptr_imdct32_f32 = __oil_function_class_imdct32_f32();
    1.93 +	return &oil_function_class_ptr_imdct32_f32->func;
    1.94 +	}
    1.95 +#endif
    1.96 +