scummvm/engines/bagel/boflib/misc.h

105 lines
3.1 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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/>.
*
*/
#ifndef BAGEL_BOFLIB_MISC_H
#define BAGEL_BOFLIB_MISC_H
#include "bagel/boflib/stdinc.h"
namespace Bagel {
extern int mapWindowsPointSize(int pointSize);
/**
* Starts a Millisecond timer
*/
extern void timerStart();
/**
* Stops the timer started by timerStart, returns time elapsed.
* @return Number of MilliSeconds elapsed since call to timerStart
*/
extern uint32 timerStop();
/**
* Returns the current elapsed time in milliseconds
*/
extern uint32 getTimer();
/**
* Pauses the computer for specified number of MilliSeconds
* @param milli Number of milliseconds
*/
extern void bofSleep(uint32 milli);
extern Fixed fixedDivide(Fixed Dividend, Fixed Divisor);
extern Fixed fixedMultiply(Fixed Multiplicand, Fixed Multiplier);
#define intToFixed(i) (Fixed)(((long)(i)) << 16)
#define fixedToInt(f) (int)(((long)(f)) >> 16)
//////////////////////////////////////////////////////////////////////////////
//
// Memory allocation routines (Should be put into their own MEMORY module)
//
//////////////////////////////////////////////////////////////////////////////
/**
* Allocates a memory block of specified size
* @param nSize Number of bytes to allocate
* @param pFile Source file name
* @param nLine Source file line number
* @param bClear true if buffer should be cleared
* @return Pointer to new buffer
*/
extern void *bofMemAlloc(uint32 nSize, const char *pFile, int nLine, bool bClear);
/**
* Frees specified memory block
* @param pBuf Buffer to de-allocate
**/
extern void bofMemFree(void *pBuf);
#define bofAlloc(n) bofMemAlloc((n), __FILE__, __LINE__, false)
#define bofCleanAlloc(n) bofMemAlloc((n), __FILE__, __LINE__, true)
#define bofFree(p) bofMemFree((p))
inline uint32 getFreePhysMem() {
return 999999;
}
/**
* Encrypts specified buffer
* @param pBuf Buffer to encrypt
* @param lSize Number of bytes in buffer
* @param pszPassword Optional password to encrypt with
*/
void encrypt(void *pBuf, int32 lSize, const char *pszPassword = nullptr);
#define decrypt encrypt
extern void encryptPartial(void *, int32, int32, const char *pPassword = nullptr);
#define decryptPartial encryptPartial
} // namespace Bagel
#endif