CWE-ou-minkata/Sources/Plasma/CoreLib/hsUtils.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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licensors of this Program grant you additional
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
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*==LICENSE==*/

#ifdef _HSUTILS_H
#   error "Do not include hsUtils.h directly--use HeadSpin.h"
#endif // _HSUTILS_H
#define   _HSUTILS_H

#include "HeadSpin.h"
#include <cctype>
#include <cstring>
#include <stdarg.h>

int     hsStrlen(const char src[]);
char*   hsStrcpy(char dstOrNil[], const char src[]);
void    hsStrcat(char dst[], const char src[]);
bool    hsStrEQ(const char s1[], const char s2[]);
bool    hsStrCaseEQ(const char* s1, const char* s2);
char*   hsScalarToStr(float);
int     hsRemove(const char* filename);
void    hsCPathToMacPath(char* dst, char* fname);   
void    hsStrLower(char *s);
char *  hsFormatStr(const char * fmt, ...); // You are responsible for returned memory.
char *  hsFormatStrV(const char * fmt, va_list args);   // You are responsible for returned memory.

// Use "correct" stricmp based on the selected compiler / library
#if HS_BUILD_FOR_WIN32
#    define stricmp     _stricmp
#    define strnicmp    _strnicmp
#    define wcsicmp     _wcsicmp
#    define wcsnicmp    _wcsnicmp
#    define strlwr      _strlwr
#else
#    define stricmp     strcasecmp
#    define strnicmp    strncasecmp
#    define wcsicmp     wcscasecmp
#    define wcsnicmp    wcsncasecmp
#    define strlwr      hsStrLower
#endif


//  A pstring has a length uint8_t at the beginning, and no trailing 0
char*   hsP2CString(const uint8_t pstring[], char cstring[]);
uint8_t*  hsC2PString(const char cstring[], uint8_t pstring[]);

inline char* hsStrcpy(const char src[])
{
    return hsStrcpy(nil, src);
}

inline char *hsStrncpy(char *strDest, const char *strSource, size_t count)
{
    char *temp = strncpy(strDest, strSource, count-1);
    strDest[count-1] = 0;
    return temp;
}

wchar_t *hsStringToWString( const char *str );
char    *hsWStringToString( const wchar_t *str );

enum {              // Kind of MessageBox...passed to hsMessageBox
    hsMessageBoxAbortRetyIgnore,
    hsMessageBoxNormal,             // Just Ok
    hsMessageBoxOkCancel,
    hsMessageBoxRetryCancel,
    hsMessageBoxYesNo,
    hsMessageBoxYesNoCancel,
};

enum {
    hsMessageBoxIconError,
    hsMessageBoxIconQuestion,
    hsMessageBoxIconExclamation,
    hsMessageBoxIconAsterisk,
};

enum {          // RETURN VALUES FROM hsMessageBox
    hsMBoxOk = 1,       // OK button was selected. 
    hsMBoxCancel,   // Cancel button was selected. 
    hsMBoxAbort,    // Abort button was selected. 
    hsMBoxRetry,    // Retry button was selected. 
    hsMBoxIgnore,   // Ignore button was selected. 
    hsMBoxYes,      // Yes button was selected. 
    hsMBoxNo        // No button was selected. 
};

extern bool hsMessageBox_SuppressPrompts;
int hsMessageBox(const char message[], const char caption[], int kind, int icon=hsMessageBoxIconAsterisk);
int hsMessageBox(const wchar_t message[], const wchar_t caption[], int kind, int icon=hsMessageBoxIconAsterisk);
int hsMessageBoxWithOwner(void* owner, const char message[], const char caption[], int kind, int icon=hsMessageBoxIconAsterisk);
int hsMessageBoxWithOwner(void* owner, const wchar_t message[], const wchar_t caption[], int kind, int icon=hsMessageBoxIconAsterisk);

inline hsBool hsCompare(float a, float b, float delta=0.0001);

// flag testing / clearing
#define hsCheckBits(f,c) ((f & c)==c)
#define hsTestBits(f,b)  ( (f) & (b)   )
#define hsSetBits(f,b)   ( (f) |= (b)  )
#define hsClearBits(f,b) ( (f) &= ~(b) )
#define hsToggleBits(f,b) ( (f) ^= (b) )
#define hsChangeBits(f,b,t) ( t ? hsSetBits(f,b) : hsClearBits(f,b) )


#if HS_BUILD_FOR_WIN32
// This is for Windows
#    define hsVsnprintf     _vsnprintf
#    define hsVsnwprintf    _vsnwprintf
#    define hsSnprintf      _snprintf
#    define hsSnwprintf     _snwprintf

#    define snprintf        _snprintf
#    define snwprintf       _snwprintf
#    define swprintf        _snwprintf

#    ifndef fileno
#        define fileno(__F)       _fileno(__F)
#    endif

#   define hsWFopen(name, mode)     _wfopen(name, mode)
#else
// This is for Unix, Linux, OSX, etc.
#    define hsVsnprintf     vsnprintf
#    define hsVsnwprintf    vswprintf
#    define hsSnprintf      snprintf
#    define hsSnwprintf     swprintf

#   define hsWFopen(name, mode)     fopen(hsWStringToString(name), hsWStringToString(mode))

#   include <limits.h>
#   define MAX_PATH PATH_MAX
#endif

// Useful floating point utilities
inline float hsDegreesToRadians(float deg) { return float(deg * (M_PI / 180)); }
inline float hsRadiansToDegrees(float rad) { return float(rad * (180 / M_PI)); }
#define hsInvert(a) (1 / (a))

#include <new>
#define NEWZERO(t)              new(calloc(sizeof(t), 1)) t

/////////////////////////////
// Physical memory functions
/////////////////////////////
enum MemSpec
{
    kBlows = 0,     // Less than 128
    kAcceptable,    // Less than 256
    kOptimal        // 256 or greater
};

uint32_t hsPhysicalMemory();
MemSpec hsMemorySpec();

inline int hsRandMax() { return 32767; }
inline float hsRandNorm() { return 1.f / 32767.f; } // multiply by hsRand to get randoms ranged [0..1]
int hsRand(void);
void hsRandSeed(int seed);

#define hsFopen(name, mode) fopen(name, mode)

char** DisplaySystemVersion();

/************************ Debug/Error Macros **************************/

typedef void (*hsDebugMessageProc)(const char message[]);
extern hsDebugMessageProc gHSDebugProc;
#define HSDebugProc(m)  { if (gHSDebugProc) gHSDebugProc(m); }
hsDebugMessageProc hsSetDebugMessageProc(hsDebugMessageProc newProc);

extern hsDebugMessageProc gHSStatusProc;
hsDebugMessageProc hsSetStatusMessageProc(hsDebugMessageProc newProc);

void ErrorEnableGui (bool enabled);
void ErrorAssert (int line, const char file[], const char fmt[], ...);
void ErrorMinimizeAppWindow ();

bool DebugIsDebuggerPresent ();
void DebugBreakIfDebuggerPresent ();
void DebugMsg(const char fmt[], ...);

#ifdef HS_DEBUGGING
    
    void    hsDebugMessage(const char message[], long refcon);
    #define hsDebugCode(code)                   code
    #define hsIfDebugMessage(expr, msg, ref)    (void)( ((expr) != 0) || (hsDebugMessage(msg, ref), 0) )
    #define hsAssert(expr, msg)                 (void)( ((expr) != 0) || (ErrorAssert(__LINE__, __FILE__, msg), 0) )
    #define ASSERT(expr)                        (void)( ((expr) != 0) || (ErrorAssert(__LINE__, __FILE__, #expr), 0) )
    #define ASSERTMSG(expr, msg)                (void)( ((expr) != 0) || (ErrorAssert(__LINE__, __FILE__, msg), 0) )
    #define FATAL(msg)                          ErrorAssert(__LINE__, __FILE__, msg)
    #define DEBUG_MSG                           DebugMsg
    #define DEBUG_BREAK_IF_DEBUGGER_PRESENT     DebugBreakIfDebuggerPresent
    
#else   /* Not debugging */

    #define hsDebugMessage(message, refcon)     NULL_STMT
    #define hsDebugCode(code)                   /* empty */
    #define hsIfDebugMessage(expr, msg, ref)    NULL_STMT
    #define hsAssert(expr, msg)                 NULL_STMT
    #define ASSERT(expr)                        NULL_STMT
    #define ASSERTMSG(expr, msg)                NULL_STMT
    #define FATAL(msg)                          NULL_STMT
    #define DEBUG_MSG                           (void)
    #define DEBUG_MSGV                          NULL_STMT
    #define DEBUG_BREAK_IF_DEBUGGER_PRESENT     NULL_STMT

#endif  // HS_DEBUGGING


#ifdef _MSC_VER
#define  DEFAULT_FATAL(var)  default: FATAL("No valid case for switch variable '" #var "'"); __assume(0); break;
#else
#define  DEFAULT_FATAL(var)  default: FATAL("No valid case for switch variable '" #var "'"); break;
#endif

/*****************************************************************************
*
*  Atomic Operations
*
***/

// *value += increment; return original value of *value; thread safe
inline long AtomicAdd(long* value, long increment) {
#ifdef HS_BUILD_FOR_WIN32
    return InterlockedExchangeAdd(value, increment);
#elif HS_BUILD_FOR_UNIX
    return __sync_fetch_and_add(value, increment);
#else
#error "No Atomic Set support on this architecture"
#endif
}

// *value = value; return original value of *value; thread safe
inline long AtomicSet(long* value, long set) {
#ifdef HS_BUILD_FOR_WIN32
    return InterlockedExchange(value, set);
#elif HS_BUILD_FOR_UNIX
    return  __sync_lock_test_and_set(value, set);
#else
#error "No Atomic Set support on this architecture"
#endif
}