mirror of
https://github.com/kevinbentley/Descent3.git
synced 2025-01-23 12:08:56 +00:00
e6ba1906c9
The MACINTOSH define refers to MacOS Classic (not OS X) which we do not
plan to support. Rather than carry the cruft forever, let's delete it.
NOTE: legacy/ is unused but we're keeping it around, so MACINTOSH uses
there are left alone.
Process used for this commit:
```
git rm -r mac
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" \) \
-exec unifdef -UMACINTOSH -o {} {} \;
git restore legacy
git add .
```
Test Plan:
On Mac, build both Debug and Release
```
cmake --build --preset mac --config Debug
cmake --build --preset mac --config Release
```
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/*
|
|
* Descent 3
|
|
* Copyright (C) 2024 Parallax Software
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
/*
|
|
* $Logfile: /DescentIII/Main/Lib/fix.h $
|
|
* $Revision: 4 $
|
|
* $Date: 10/21/99 9:27p $
|
|
* $Author: Jeff $
|
|
*
|
|
* Header for fixed-point math functions
|
|
*
|
|
* $Log: /DescentIII/Main/Lib/fix.h $
|
|
*
|
|
* 4 10/21/99 9:27p Jeff
|
|
* B.A. Macintosh code merge
|
|
*
|
|
* 3 9/09/97 3:53p Chris
|
|
* Added a #define PI to fix.h
|
|
*
|
|
* 2 8/22/97 12:34p Jason
|
|
* added FixCeil and FixFloor
|
|
*
|
|
* 1 6/23/97 9:25p Samir
|
|
* added because source safe sucks
|
|
*
|
|
* 7 2/27/97 4:57p Samir
|
|
* include fixwin32.h from win\fixwin32.h
|
|
*
|
|
* 6 2/27/97 4:52 PM Jeremy
|
|
* moved inline asm fixmul/div functions into separate header files for
|
|
* mac and pc.
|
|
*
|
|
* 5 2/12/97 5:27p Jason
|
|
* implemented asin,acos,atan2
|
|
*
|
|
* 4 2/10/97 1:57p Jason
|
|
* changed FloatToFix back to what it originally was
|
|
*
|
|
* 3 2/07/97 5:44p Matt
|
|
* Moved fixed-point math funcs from vecmat to fix
|
|
* Changed trig functions to use small table like D2
|
|
*
|
|
* $NoKeywords: $
|
|
*/
|
|
|
|
#ifndef _FIX_H
|
|
#define _FIX_H
|
|
|
|
#include "math.h"
|
|
|
|
// Disable the "possible loss of data" warning
|
|
#pragma warning(disable : 4244)
|
|
|
|
// Angles are unsigned shorts
|
|
typedef unsigned short angle;
|
|
|
|
// The basic fixed-point type
|
|
typedef long fix;
|
|
|
|
#define PI 3.141592654
|
|
#define PIOVER2 1.570796327 // DAJ
|
|
|
|
// Constants for converted between fix and float
|
|
#define FLOAT_SCALER 65536.0
|
|
#define FIX_SHIFT 16
|
|
|
|
// 1.0 in fixed-point
|
|
#define F1_0 (1 << FIX_SHIFT)
|
|
|
|
// Generate the data for the trig tables. Must be called before trig functions
|
|
void InitMathTables();
|
|
|
|
// Returns the sine of the given angle. Linearly interpolates between two entries in a 256-entry table
|
|
float FixSin(angle a);
|
|
|
|
// Returns the cosine of the given angle. Linearly interpolates between two entries in a 256-entry table
|
|
float FixCos(angle a);
|
|
|
|
// Returns the sine of the given angle, but does no interpolation
|
|
float FixSinFast(angle a);
|
|
|
|
// Returns the cosine of the given angle, but does no interpolation
|
|
float FixCosFast(angle a);
|
|
|
|
#define Round(x) ((int)(x + 0.5))
|
|
|
|
fix FloatToFixFast(float num);
|
|
|
|
// Conversion macros
|
|
//??#define FloatToFix(num) Round((num) * FLOAT_SCALER)
|
|
#define FloatToFix(num) ((fix)((num) * FLOAT_SCALER))
|
|
#define IntToFix(num) ((num) << FIX_SHIFT)
|
|
#define ShortToFix(num) (((long)(num)) << FIX_SHIFT)
|
|
#define FixToFloat(num) (((float)(num)) / FLOAT_SCALER)
|
|
#define FixToInt(num) ((num) >> FIX_SHIFT)
|
|
#define FixToShort(num) ((short)((num) >> FIX_SHIFT))
|
|
|
|
// Fixed-point math functions in inline ASM form
|
|
#if defined(WIN32)
|
|
#include "win\fixwin32.h"
|
|
#endif
|
|
|
|
// use this instead of:
|
|
// for: (int)floor(x+0.5f) use FloatRound(x)
|
|
// (int)ceil(x-0.5f) use FloatRound(x)
|
|
// (int)floor(x-0.5f) use FloatRound(x-1.0f)
|
|
// (int)floor(x) use FloatRound(x-0.5f)
|
|
// for values in the range -2048 to 2048
|
|
int FloatRound(float x);
|
|
|
|
angle FixAtan2(float cos, float sin);
|
|
angle FixAsin(float v);
|
|
angle FixAcos(float v);
|
|
|
|
// Does a ceiling operation on a fixed number
|
|
fix FixCeil(fix num);
|
|
|
|
// Floors a fixed number
|
|
fix FixFloor(fix num);
|
|
|
|
#endif
|