diff -r 000000000000 -r bde4ae8d615e os/ossrv/genericopenlibs/liboil/src/dct/imdct32_f32.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/imdct32_f32.c Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,93 @@ +/* + * LIBOIL - Library of Optimized Inner Loops + * Copyright (c) 2003,2004 David A. Schleef + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +//Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include "liboil/dct/dct.h" +#include + + +/** + * oil_imdct32_f32: + * @d_32: + * @s_32: + * + * Performs a Inverse Modified Discrete Cosine Transform (IMDCT) + * on the source array @s_32 and places the result in @d_32. + */ +OIL_DEFINE_CLASS (imdct32_f32, "float *d_32, float *s_32"); + +static void imdct32_f32_ref (float *dest, const float *src) +{ + double x; + int i,j; + double coeff; + + for(i=0;i<32;i++){ + x = 0; + for(j=0;j<32;j++){ + coeff = cos((M_PI/32)*i*(j+0.5)); + x += coeff * src[j]; + } + dest[i] = x; + } +} + +OIL_DEFINE_IMPL_REF (imdct32_f32_ref, imdct32_f32); + + + +#ifdef __SYMBIAN32__ + +OilFunctionClass* __oil_function_class_imdct32_f32() { + return &_oil_function_class_imdct32_f32; +} +#endif + + + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_imdct32_f32_ref() { + return &_oil_function_impl_imdct32_f32_ref; +} +#endif + + + +#ifdef __SYMBIAN32__ + +EXPORT_C void** _oil_function_class_ptr_imdct32_f32 () { + oil_function_class_ptr_imdct32_f32 = __oil_function_class_imdct32_f32(); + return &oil_function_class_ptr_imdct32_f32->func; + } +#endif +