| /* 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; |
| } |