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| 325 | serge | 1 | // Emacs style mode select -*- C++ -*- |
| 2 | //----------------------------------------------------------------------------- |
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| 3 | // |
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| 4 | // $Id:$ |
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| 5 | // |
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| 6 | // Copyright (C) 1993-1996 by id Software, Inc. |
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| 7 | // |
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| 8 | // This source is available for distribution and/or modification |
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| 9 | // only under the terms of the DOOM Source Code License as |
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| 10 | // published by id Software. All rights reserved. |
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| 11 | // |
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| 12 | // The source is distributed in the hope that it will be useful, |
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| 13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License |
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| 15 | // for more details. |
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| 16 | // |
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| 17 | // DESCRIPTION: |
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| 18 | // Fixed point arithemtics, implementation. |
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| 19 | // |
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| 20 | //----------------------------------------------------------------------------- |
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| 21 | |||
| 22 | |||
| 23 | #ifndef __M_FIXED__ |
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| 24 | #define __M_FIXED__ |
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| 25 | |||
| 26 | |||
| 27 | #ifdef __GNUG__ |
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| 28 | #pragma interface |
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| 29 | #endif |
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| 30 | |||
| 31 | |||
| 32 | // |
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| 33 | // Fixed point, 32bit as 16.16. |
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| 34 | // |
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| 35 | #define FRACBITS 16 |
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| 36 | #define FRACUNIT (1< |
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| 37 | |||
| 38 | typedef int fixed_t; |
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| 39 | |||
| 40 | fixed_t FixedMul (fixed_t a, fixed_t b); |
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| 41 | fixed_t FixedDiv (fixed_t a, fixed_t b); |
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| 42 | fixed_t FixedDiv2 (fixed_t a, fixed_t b); |
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| 43 | |||
| 44 | |||
| 45 | |||
| 46 | #endif |
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| 47 | //----------------------------------------------------------------------------- |
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| 48 | // |
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| 49 | // $Log:$ |
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| 50 | // |
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| 51 | //----------------------------------------------------------------------------- |