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/* Generate trigonometric function tables. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE 1
#include <grub/trig.h>
#include <math.h>
#include <stdio.h>
int
main (int argc __attribute__ ((unused)),
char **argv __attribute__ ((unused)))
{
int i;
printf ("#include <grub/types.h>\n");
printf ("#include <grub/dl.h>\n");
printf ("\n");
printf ("/* Under copyright legislature such automated output isn't\n");
printf ("covered by any copyright. Hence it's public domain. Public\n");
printf ("domain works can be dual-licenced with any license. */\n");
printf ("GRUB_MOD_LICENSE (\"GPLv3+\");");
printf ("GRUB_MOD_DUAL_LICENSE (\"Public Domain\");");
#define TAB(op) \
printf ("const grub_int16_t grub_trig_" #op "tab[] =\n{"); \
for (i = 0; i < GRUB_TRIG_ANGLE_MAX; i++) \
{ \
double x = i * 2 * M_PI / GRUB_TRIG_ANGLE_MAX; \
if (i % 10 == 0) \
printf ("\n "); \
printf ("%d,", (int) (round (op (x) * GRUB_TRIG_FRACTION_SCALE))); \
} \
printf ("\n};\n")
TAB(sin);
TAB(cos);
return 0;
}
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