/*

  * LIBOIL - Library of Optimized Inner Loops

  * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>

  * 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 <liboil/liboilfunction.h>

 #include <liboil/liboilclasses.h>

 #include <math.h>

 /* XXX This gets more inaccurate as N increases */

 static void

 sincos_f64_i20_fast(double *dest_sin, double *dest_cos, int n, double *offset,

     double *interval)

 {

 	int i;

 	double c,s,dc,ds,temp_s,temp_c;

 	dest_sin[0] = s = sin(*offset);

 	dest_cos[0] = c = cos(*offset);

 	ds = sin(*interval);

 	dc = cos(*interval);

 	for(i=1;i<n;i++){

 		temp_s = s*dc + c*ds;

 		temp_c = c*dc - s*ds;

 		dest_sin[i] = s = temp_s;

 		dest_cos[i] = c = temp_c;

 	}

 }

 OIL_DEFINE_IMPL (sincos_f64_i20_fast, sincos_f64);

 #ifdef HAVE_SINCOS

 static void

 sincos_f64_sincos (double *dest_sin, double *dest_cos, int n, double *offset,

     double *interval)

 {

 	int i;

 	for(i=0;i<n;i++){

           sincos (*offset + *interval * i, dest_sin + i, dest_cos + i);

 	}

 }

 OIL_DEFINE_IMPL (sincos_f64_sincos, sincos_f64);

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_sincos_f64_i20_fast() {

 		return &_oil_function_impl_sincos_f64_i20_fast;

 }

 #endif

 #if 0

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_sincos_f64_sincos() {

 		return &_oil_function_impl_sincos_f64_sincos;

 }

 #endif

 #endif