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cleanup

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Tectu 2012-08-05 02:30:14 +02:00
parent f2dc0bedfb
commit 081215a1a7
2 changed files with 0 additions and 182 deletions
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152
glcd/fastMath.c
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@ -1,152 +0,0 @@
/*
ChibiOS/RT - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS-LCD-Driver.
ChibiOS-LCD-Driver 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.
ChibiOS-LCD-Driver 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
//achtung wird im RAM abgelegt!
float sintable[91] = {
0
,0.017452406
,0.034899497
,0.052335956
,0.069756474
,0.087155743
,0.104528463
,0.121869343
,0.139173101
,0.156434465
,0.173648178
,0.190808995
,0.207911691
,0.224951054
,0.241921896
,0.258819045
,0.275637356
,0.292371705
,0.309016994
,0.325568154
,0.342020143
,0.35836795
,0.374606593
,0.390731128
,0.406736643
,0.422618262
,0.438371147
,0.4539905
,0.469471563
,0.48480962
,0.5
,0.515038075
,0.529919264
,0.544639035
,0.559192903
,0.573576436
,0.587785252
,0.601815023
,0.615661475
,0.629320391
,0.64278761
,0.656059029
,0.669130606
,0.68199836
,0.69465837
,0.707106781
,0.7193398
,0.731353702
,0.743144825
,0.75470958
,0.766044443
,0.777145961
,0.788010754
,0.79863551
,0.809016994
,0.819152044
,0.829037573
,0.838670568
,0.848048096
,0.857167301
,0.866025404
,0.874619707
,0.882947593
,0.891006524
,0.898794046
,0.906307787
,0.913545458
,0.920504853
,0.927183855
,0.933580426
,0.939692621
,0.945518576
,0.951056516
,0.956304756
,0.961261696
,0.965925826
,0.970295726
,0.974370065
,0.978147601
,0.981627183
,0.984807753
,0.987688341
,0.990268069
,0.992546152
,0.994521895
,0.996194698
,0.99756405
,0.998629535
,0.999390827
,0.999847695
,1
};
float getSin(unsigned int degree) {
degree = degree % 360;
if(degree <= 90) {
return sintable[degree];
}
else if(degree <= 180) {
return sintable[180-degree];
}
else if(degree <= 270) {
return sintable[degree-180]*(-1.0);
}
else {
return sintable[360-degree]*(-1.0);
}
}
double getCos(unsigned int degree) {
degree = degree % 360;
return getSin(degree+90);
}
/* signum function */
char sgn(char x) {
return (x > 0) ? 1 : (x < 0) ? -1 : 0;
}
unsigned char max(unsigned char a, unsigned char b) {
return (a<b) ? b : a;
}
unsigned char min (unsigned char a, unsigned char b) {
return (a<b) ? a : b;
}

30
glcd/fastMath.h
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@ -1,30 +0,0 @@
/*
ChibiOS/RT - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS-LCD-Driver.
ChibiOS-LCD-Driver 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.
ChibiOS-LCD-Driver 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FASTMATH_H
#define FASTMATH_H
char sgn(char x);
double getCos(unsigned int degree);
double getSin(unsigned int degree);
unsigned char max(unsigned char a, unsigned char b);
unsigned char min(unsigned char a, unsigned char b);
#endif /* FASTMATH_H_ */