diff -r 000000000000 -r bde4ae8d615e os/ossrv/genericopenlibs/liboil/src/dct/fdct8x8s_s16.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/genericopenlibs/liboil/src/dct/fdct8x8s_s16.c Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,127 @@ +/* + * 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 +#include "liboil/dct/dct.h" + + + +#define C0_9808 0.980785280 +#define C0_9239 0.923879532 +#define C0_8315 0.831469612 +#define C0_7071 0.707106781 +#define C0_5556 0.555570233 +#define C0_3827 0.382683432 +#define C0_1951 0.195090322 + +/** + * oil_fdct8x8s_s16: + * @d_8x8: + * @ds: + * @s_8x8: + * @ss: + * + * Performs a 2-D Forward Discrete Cosine Transform on @s_8x8 and places + * the result in @d_8x8. + * + * This function uses an alternate scaling used by RTjpeg. + */ +OIL_DEFINE_CLASS(fdct8x8s_s16, + "int16_t *d_8x8, int ds, int16_t *s_8x8, int ss"); + +#if defined(oil_fdct8x8_f64) && defined(oil_conv8x8_s16_f64) +static void +fdct8x8s_s16_ref (int16_t *dest, int dstr, const int16_t *src, int sstr) +{ + double s[64], d[64]; + double scale[8] = { + 4*C0_7071, + 4*C0_9808, + 4*C0_9239, + 4*C0_8315, + 4*C0_7071, + 4*C0_5556, + 4*C0_3827, + 4*C0_1951, + }; + int i,j; + + for(i=0;i<8;i++){ + for(j=0;j<8;j++){ + s[8*i+j] = OIL_GET (src,sstr*i+j*sizeof(int16_t), int16_t); + } + } + + oil_fdct8x8_f64(d,8*sizeof(double),s,8*sizeof(double)); + + for(i=0;i<8;i++){ + for(j=0;j<8;j++){ + d[8*i+j] *= scale[i] * scale[j]; + } + } + + oil_conv8x8_s16_f64(dest,dstr,d,8*sizeof(double)); +} + +OIL_DEFINE_IMPL_REF (fdct8x8s_s16_ref, fdct8x8s_s16); +#endif + + + + +#ifdef __SYMBIAN32__ + +OilFunctionClass* __oil_function_class_fdct8x8s_s16() { + return &_oil_function_class_fdct8x8s_s16; +} +#endif + + + +#ifdef __SYMBIAN32__ + +OilFunctionImpl* __oil_function_impl_fdct8x8s_s16_ref() { + return &_oil_function_impl_fdct8x8s_s16_ref; +} +#endif + + + +#ifdef __SYMBIAN32__ + +EXPORT_C void** _oil_function_class_ptr_fdct8x8s_s16 () { + oil_function_class_ptr_fdct8x8s_s16 = __oil_function_class_fdct8x8s_s16(); + return &oil_function_class_ptr_fdct8x8s_s16->func; + } +#endif +