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Diffstat (limited to 'demos/3rdparty/doom/m_fixed.h')
| -rw-r--r-- | demos/3rdparty/doom/m_fixed.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/demos/3rdparty/doom/m_fixed.h b/demos/3rdparty/doom/m_fixed.h new file mode 100644 index 00000000..7cd7c666 --- /dev/null +++ b/demos/3rdparty/doom/m_fixed.h @@ -0,0 +1,51 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// $Id:$ +// +// Copyright (C) 1993-1996 by id Software, Inc. +// +// This source is available for distribution and/or modification +// only under the terms of the DOOM Source Code License as +// published by id Software. All rights reserved. +// +// The source is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License +// for more details. +// +// DESCRIPTION: +// Fixed point arithemtics, implementation. +// +//----------------------------------------------------------------------------- + + +#ifndef __M_FIXED__ +#define __M_FIXED__ + + +#ifdef __GNUG__ +#pragma interface +#endif + + +// +// Fixed point, 32bit as 16.16. +// +#define FRACBITS 16 +#define FRACUNIT (1<<FRACBITS) + +typedef int fixed_t; + +fixed_t FixedMul (fixed_t a, fixed_t b); +fixed_t FixedDiv (fixed_t a, fixed_t b); +fixed_t FixedDiv2 (fixed_t a, fixed_t b); + + + +#endif +//----------------------------------------------------------------------------- +// +// $Log:$ +// +//----------------------------------------------------------------------------- |