X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fmisc.hh;h=0ea0a942522ab08b218a2f64c94e3e2777e6cb71;hb=9e781b7dc83b60a543ce218aa1a5f139f74c760f;hp=754379d477a19edd99772b4893c51bd0fa7191b7;hpb=c659cb200486c2f908703696a1b2873e78c8160a;p=lilypond.git diff --git a/lily/include/misc.hh b/lily/include/misc.hh index 754379d477..0ea0a94252 100644 --- a/lily/include/misc.hh +++ b/lily/include/misc.hh @@ -1,34 +1,70 @@ +/* + This file is part of LilyPond, the GNU music typesetter. + + Copyright (C) 2005--2014 Han-Wen Nienhuys + + LilyPond 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. + + LilyPond 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 LilyPond. If not, see . +*/ + #ifndef MISC_HH #define MISC_HH #include +using namespace std; -#include "array.hh" +#include "std-vector.hh" #include "interval.hh" -double log_2 (double x) ; +double log_2 (double x); int intlog2 (int d); inline int sign (int i) { - if (i<0) + if (i < 0) return -1; else if (i) return 1; else return 0; } +inline int +shift_left (int value, int shiftamount) +{ + if (shiftamount < 0) return (value >> -shiftamount); + else return (value << shiftamount); +} +inline Real +linear_interpolate (Real x, Real x1, Real x2, Real y1, Real y2) +{ + return (x2 - x) / (x2 - x1) * y1 + + (x - x1) / (x2 - x1) * y2; +} inline Real -linear_interpolate (Real x, Real x1, Real x2, Real y1, Real y2) +normalize (Real x, Real x1, Real x2) { - return (x2 - x) / (x2 - x1) * y1 + - (x - x1) / (x2 - x1) * y2 ; + return (x - x1) / (x2 - x1); } +Real directed_round (Real f, Direction d); +Offset get_point_in_y_direction (Offset orig, Real slope, Real dist, Direction dir); +Real peak_around (Real epsilon, Real threshold, Real x); +Real convex_amplifier (Real standard_x, Real increase_factor, Real x); +string camel_case_to_lisp_identifier (const string &in); #endif