Mercurial > public > ostc4
view Discovery/Inc/Utils.h @ 467:5387e684d797 Improve_Logtansfer
Cmd Get profile: transmit dummy profile if necessary
In previous version a invalid profile was identified by a deleted profile information in the header. This was now replaced by checking the modified OSTC header for usage of dummy profile data
author | ideenmodellierer |
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date | Tue, 14 Apr 2020 19:29:23 +0200 |
parents | 5f11787b4f42 |
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/////////////////////////////////////////////////////////////////////////////// /// -*- coding: UTF-8 -*- /// /// \file Discovery/Inc/Utils.h /// \brief Various Utilities... /// \author Heinrichs Weikamp /// \date 2018 /// /// $Id$ /////////////////////////////////////////////////////////////////////////////// /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh /// /// This program 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. /// /// This program 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 UTILS_H #define UTILS_H #include <stdint.h> #include <stdbool.h> #include <math.h> #ifdef FloatToFixed #undef FloatToFixed #undef IntToFixed #undef FixedToFloat #undef FixedToInt #endif // // 20.12 fixed-point operations // #define Fix(val) ((val)*4096) #define F(val) Fix(val) #define FixSqrt2 5793 #define FixInvSqrt2 2896 #define FixSinPiDiv4 FixInvSqrt2 #define FixCosPiDiv4 FixInvSqrt2 #define FixSinPiDiv8 1567 #define FixCosPiDiv8 3784 static inline int32_t FloatToFixed(float val) { return val*4096.0f; } static inline int32_t IntToFixed(int val) { return val<<12; } static inline int32_t IntToFixedPlusHalf(int val) { return (val<<12)+0x800; } static inline float FixedToFloat(int32_t val) { return (float)val/4096.0f; } static inline int32_t FixedToInt(int32_t val) { return val>>12; } static inline int32_t FixedToRoundedInt(int32_t val) { return (val+0x800)>>12; } //static inline int32_t FixedMul(int32_t a,int32_t b) { return ((int64_t)a*(int64_t)b)>>16; } static inline int32_t imin(int32_t a,int32_t b) { return a<b?a:b; } static inline int32_t imax(int32_t a,int32_t b) { return a>b?a:b; } static inline int32_t iabs(int32_t a) { return a<0?-a:a; } static inline int32_t isign(int32_t a) { return a>0?1:a<0?-1:0; } static inline int64_t imul64(int64_t a, int64_t b) { return (a*b)>>12; } static inline int32_t imul(int32_t a, int32_t b) { return (int32_t)imul64(a,b); } static inline int64_t idiv64(int64_t num,int64_t den) { return (num<<12)/den; } static inline int32_t idiv(int32_t num,int32_t den) { return (int32_t)idiv64(num,den); } static inline int64_t isq64(int64_t val) { return imul64(val,val); } static inline int32_t isq(int32_t val) { return imul(val,val); } static uint32_t sqrti(uint32_t n) { uint32_t s,t; #define sqrtBit(k) \ t = s+(1UL<<(k-1)); t <<= k+1; if (n >= t) { n -= t; s |= 1UL<<k; } s=0; if(n>=1<<30) { n-=1<<30; s=1<<15; } sqrtBit(14); sqrtBit(13); sqrtBit(12); sqrtBit(11); sqrtBit(10); sqrtBit(9); sqrtBit(8); sqrtBit(7); sqrtBit(6); sqrtBit(5); sqrtBit(4); sqrtBit(3); sqrtBit(2); sqrtBit(1); if(n>s<<1) s|=1; #undef sqrtBit return s; } static inline int64_t isqrt64(int64_t val) { return sqrti((uint64_t)val<<12); } static inline int32_t isqrt(int32_t val) { return sqrti((uint64_t)val<<12); } static inline int64_t inorm64(int64_t a,int64_t b) { return sqrt((double)a*(double)a+(double)b*(double)b); } static inline int32_t inorm(int32_t a,int32_t b) { return sqrt((double)a*(double)a+(double)b*(double)b); } static inline int32_t ifloor(int a) { return a&~0xfff; } static inline int32_t ifrac(int a) { return a&0xfff; } int32_t isin(int a); static inline int32_t icos(int a) { return isin(a+1024); } static inline int32_t itan(int a) { return idiv(isin(a),icos(a)); } // TODO: use a table static inline int32_t idegrees(int degrees) { return degrees*4096.0f/360.0f; } static inline int32_t iradians(float radians) { return radians*4096.0f/2/3.1415926535897932f; } static inline int32_t ilerp(int32_t a,int32_t b,int32_t t) { return a+imul(b-a,t); } /*static inline int32_t islerp(int32_t a,int32_t b,int32_t t) { return a; }*/ // // Bitwise operations // static inline int CountBits32(uint32_t val) { val=(val&0x55555555)+((val&0xaaaaaaaa)>>1); val=(val&0x33333333)+((val&0xcccccccc)>>2); val=(val&0x0f0f0f0f)+((val&0xf0f0f0f0)>>4); val=(val&0x00ff00ff)+((val&0xff00ff00)>>8); val=(val&0x0000ffff)+((val&0xffff0000)>>16); return val; } static inline int CountBits16(uint16_t val) { val=(val&0x5555)+((val&0xaaaa)>>1); val=(val&0x3333)+((val&0xcccc)>>2); val=(val&0x0f0f)+((val&0xf0f0)>>4); val=(val&0x00ff)+((val&0xff00)>>8); return val; } static inline int CountBits8(uint8_t val) { val=(val&0x55)+((val&0xaa)>>1); val=(val&0x33)+((val&0xcc)>>2); val=(val&0x0f)+((val&0xf0)>>4); return val; } static inline uint32_t ReverseBits32(uint32_t val) { val=((val>>1)&0x55555555)|((val<<1)&0xaaaaaaaa); val=((val>>2)&0x33333333)|((val<<2)&0xcccccccc); val=((val>>4)&0x0f0f0f0f)|((val<<4)&0xf0f0f0f0); val=((val>>8)&0x00ff00ff)|((val<<8)&0xff00ff00); val=((val>>16)&0x0000ffff)|((val<<16)&0xffff0000); return val; } static inline uint16_t ReverseBits16(uint16_t val) { val=((val>>1)&0x5555)|((val<<1)&0xaaaa); val=((val>>2)&0x3333)|((val<<2)&0xcccc); val=((val>>4)&0x0f0f)|((val<<4)&0xf0f0); val=((val>>8)&0x00ff)|((val<<8)&0xff00); return val; } static inline uint8_t ReverseBits8(uint8_t val) { val=((val>>1)&0x55)|((val<<1)&0xaa); val=((val>>2)&0x33)|((val<<2)&0xcc); val=((val>>4)&0x0f)|((val<<4)&0xf0); return val; } static int LowestBitSet32(uint32_t val) { if(val==0) return -1; return CountBits32(val^val-1)-1; } static int LowestBitSet16(uint16_t val) { if(val==0) return -1; return CountBits16(val^val-1)-1; } static int LowestBitSet8(uint8_t val) { if(val==0) return -1; return CountBits8(val^val-1)-1; } #endif // UTILS_H