m_fixed.h (1924B)
1 /* 2 =========================================================================== 3 4 Doom 3 BFG Edition GPL Source Code 5 Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 6 7 This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code"). 8 9 Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation, either version 3 of the License, or 12 (at your option) any later version. 13 14 Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>. 21 22 In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below. 23 24 If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA. 25 26 =========================================================================== 27 */ 28 29 #ifndef __M_FIXED__ 30 #define __M_FIXED__ 31 32 33 #ifdef __GNUG__ 34 #pragma interface 35 #endif 36 37 38 // 39 // Fixed point, 32bit as 16.16. 40 // 41 #define FRACBITS 16 42 #define FRACUNIT (1<<FRACBITS) 43 44 typedef int fixed_t; 45 46 fixed_t FixedMul (fixed_t a, fixed_t b); 47 fixed_t FixedDiv (fixed_t a, fixed_t b); 48 fixed_t FixedDiv2 (fixed_t a, fixed_t b); 49 50 51 52 #endif 53