【VC开源代码栏目提醒】:本文主要为网学会员提供misc.cpp,希望对需要misc.cpp网友有所帮助,学习一下!
// VirtualDub - Video processing and capture application
// Copyright (C) 1998-2001 Avery Lee
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#include <ctype.h>
#include <wtypes.h>
#include <mmsystem.h>
#include "misc.h"
long __declspec(naked) MulDivTrunc(long a, long b, long c) {
__asm {
mov eax,[esp+4]
imul dword ptr [esp+8]
idiv d
word ptr [esp+12]
ret
}
}
int NearestLongValue(long v, const long *array, int array_size) {
int i;
for(i=1; i<array_size; i++)
if (v*2 < array[i-1]+array[i])
break;
return i-1;
}
bool isEqualFOURCC(FOURCC fccA, FOURCC fccB) {
int i;
for(i=0; i<4; i++) {
if (tolower((unsigned char)fccA) != tolower((unsigned char)fccB))
return false;
fccA>>=8;
fccB>>=8;
}
return true;
}
FOURCC toupperFOURCC(FOURCC fcc) {
return(toupper((unsigned char)(fcc>>24)) << 24)
| (toupper((unsigned char)(fcc>>16)) << 16)
| (toupper((unsigned char)(fcc>> 8)) << 8)
| (toupper((unsigned char)(fcc )) );
}