199 lines
6.4 KiB
C
199 lines
6.4 KiB
C
#ifndef RAGEUTIL_H
|
|
#define RAGEUTIL_H
|
|
|
|
/*
|
|
-----------------------------------------------------------------------------
|
|
File: RageUtil
|
|
|
|
Desc: Miscellaneous helper macros and functions.
|
|
|
|
Copyright (c) 2001-2002 by the person(s) listed below. All rights reserved.
|
|
Chris Danford
|
|
-----------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// SAFE_ Macros
|
|
//-----------------------------------------------------------------------------
|
|
#define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } }
|
|
#define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p); (p)=NULL; } }
|
|
#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }
|
|
|
|
#define ZERO(x) memset(&x, 0, sizeof(x))
|
|
#define COPY(a,b) { ASSERT(sizeof(a)==sizeof(b)); memcpy(&a, &b, sizeof(a)); }
|
|
|
|
/* Common harmless mismatches. */
|
|
#ifndef min
|
|
inline float min(float a, int b) { return a < b? a:b; }
|
|
inline float min(int a, float b) { return a < b? a:b; }
|
|
#endif
|
|
|
|
#ifndef max
|
|
inline float max(float a, int b) { return a > b? a:b; }
|
|
inline float max(int a, float b) { return a > b? a:b; }
|
|
#endif
|
|
|
|
/* Traditional defines. Only use this if you absolutely need
|
|
* a constant value. */
|
|
#ifndef MAX
|
|
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
|
|
#endif
|
|
|
|
#ifndef MIN
|
|
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
|
|
#endif
|
|
|
|
#define clamp(val,low,high) ( max( (low), min((val),(high)) ) )
|
|
|
|
#define PI ((float)3.1415926535897932384626433832795)
|
|
#define DegreeToRadian( degree ) ((degree) * (PI / 180.0f))
|
|
#define RadianToDegree( radian ) ((radian) * (180.0f / PI))
|
|
// Scales x so that l1 corresponds to l2 and h1 corresponds to h2. Does not modify x, MUST assign the result to something!
|
|
#define SCALE(x, l1, h1, l2, h2) (((x) - (l1)) / ((h1) - (l1)) * ((h2) - (l2)) + (l2))
|
|
// Clamps x
|
|
#define CLAMP(x, l, h) {if (x > h) x = h; else if (x < l) x = l;}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Misc helper functions
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// Fast random number generators
|
|
// Taken from "Numerical Recipes in C"
|
|
|
|
extern unsigned long randseed;
|
|
|
|
inline unsigned long Random()
|
|
{
|
|
randseed = 1664525L * randseed + 1013904223L;
|
|
return randseed;
|
|
}
|
|
|
|
inline float RandomFloat()
|
|
{
|
|
randseed = 1664525L * randseed + 1013904223L;
|
|
unsigned long itemp = 0x3f800000 | (0x007fffff & randseed);
|
|
return (*(float *)&itemp) - 1.0f;
|
|
}
|
|
|
|
// Returns a float between dLow and dHigh inclusive
|
|
inline float RandomFloat(float fLow, float fHigh)
|
|
{
|
|
return RandomFloat() * (fHigh - fLow) + fLow;
|
|
}
|
|
|
|
// Returns an integer between nLow and nHigh inclusive
|
|
inline int RandomInt(int nLow, int nHigh)
|
|
{
|
|
return ((Random() >> 2) % (nHigh - nLow + 1)) + nLow;
|
|
}
|
|
|
|
// Debug new for memory leak tracing
|
|
//#ifdef _DEBUG
|
|
//#define new new(_NORMAL_BLOCK, __FILE__, __LINE__)
|
|
//#endif
|
|
|
|
|
|
// Simple function for generating random numbers
|
|
inline float randomf( const float low=-1.0f, const float high=1.0f )
|
|
{
|
|
return low + ( high - low ) * ( (float)rand() ) / RAND_MAX;
|
|
}
|
|
|
|
/* XXX: These are C99 functions (except for the roundf(double) overload); what's
|
|
* the C99 define we can test for? */
|
|
inline double trunc( double f ) { return float(int(f)); };
|
|
inline float truncf( float f ) { return float(int(f)); };
|
|
inline float roundf( float f ) { if(f < 0) return truncf(f-0.5f); return truncf(f+0.5f); };
|
|
inline double roundf( double f ){ if(f < 0) return trunc(f-0.5); return trunc(f+0.5); };
|
|
inline float froundf( const float f, const float fRoundInterval )
|
|
{
|
|
return int( (f + fRoundInterval/2)/fRoundInterval ) * fRoundInterval;
|
|
}
|
|
|
|
int power_of_two(int input);
|
|
bool IsAnInt( const char *s );
|
|
float TimeToSeconds( CString sHMS );
|
|
CString SecondsToTime( float fSecs );
|
|
|
|
CString ssprintf( const char *fmt, ...);
|
|
CString vssprintf( const char *fmt, va_list argList );
|
|
|
|
#ifdef WIN32
|
|
CString hr_ssprintf( int hr, const char *fmt, ...);
|
|
CString werr_ssprintf( int err, const char *fmt, ...);
|
|
#endif
|
|
|
|
// Splits a Path into 4 parts (Directory, Drive, Filename, Extention). Supports UNC path names.
|
|
// param1: Whether the Supplied Path (PARAM2) contains a directory name only
|
|
// or a file name (Reason: some directories will end with "aaa.bbb"
|
|
// which is like a file name).
|
|
// We should just make sure all pathnames end with a slash, not special case it here.
|
|
// -glenn
|
|
void splitpath(
|
|
bool UsingDirsOnly,
|
|
const CString &Path,
|
|
CString &Drive,
|
|
CString &Dir,
|
|
CString &FName,
|
|
CString &Ext
|
|
);
|
|
|
|
void splitrelpath(
|
|
const CString &Path,
|
|
CString& Dir,
|
|
CString& FName,
|
|
CString& Ext
|
|
);
|
|
|
|
// Splits a CString into an CStringArray according the Deliminator.
|
|
void split(
|
|
const CString &Source,
|
|
const CString &Deliminator,
|
|
CStringArray& AddIt,
|
|
const bool bIgnoreEmpty = true
|
|
);
|
|
|
|
// Joins a CStringArray to create a CString according the Deliminator.
|
|
CString join(
|
|
const CString &Deliminator,
|
|
const CStringArray& Source
|
|
);
|
|
|
|
bool CreateDirectories( CString Path );
|
|
void GetDirListing( CString sPath, CStringArray &AddTo, bool bOnlyDirs=false, bool bReturnPathToo=false );
|
|
|
|
bool GetExtDirListing( const CString &sPath, CStringArray &AddTo, bool bOnlyDirs, bool bReturnPathToo, ... );
|
|
bool GetExtDirListingV( const CString &sPath, CStringArray &AddTo, bool bOnlyDirs, bool bReturnPathToo, const char *masks[] );
|
|
void FlushDirCache();
|
|
|
|
unsigned int GetHashForString( CString s );
|
|
unsigned int GetHashForFile( CString sPath );
|
|
unsigned int GetHashForDirectory( CString sDir ); // a hash value that remains the same as long as nothing in the directory has changed
|
|
|
|
bool DoStat(CString sPath, struct stat *st);
|
|
bool DoesFileExist( const CString &sPath );
|
|
bool IsAFile( const CString &sPath );
|
|
bool IsADirectory( const CString &sPath );
|
|
unsigned GetFileSizeInBytes( const CString &sFilePath );
|
|
|
|
bool CompareCStringsAsc(const CString &str1, const CString &str2);
|
|
bool CompareCStringsDesc(const CString &str1, const CString &str2);
|
|
void SortCStringArray( CStringArray &AddTo, const bool bSortAcsending = true );
|
|
|
|
/* Find the mean and standard deviation of all numbers in [start,end). */
|
|
float calc_mean(const float *start, const float *end);
|
|
float calc_stddev(const float *start, const float *end);
|
|
|
|
void TrimLeft(CString &str, const char *s = "\r\n\t ");
|
|
void TrimRight(CString &str, const char *s = "\r\n\t ");
|
|
|
|
CString DerefRedir(const CString &path);
|
|
|
|
#ifndef WIN32
|
|
#include <unistd.h> /* correct place with correct definitions */
|
|
#endif
|
|
|
|
#endif
|