pcsx2/plugins/zerospu2/misc.h

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/* ZeroSPU2
* Copyright (C) 2006-2007 zerofrog
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef __LINUX__
#include <unistd.h>
#include <gtk/gtk.h>
#include <sys/timeb.h> // ftime(), struct timeb
#define Sleep(ms) usleep(1000*ms)
inline unsigned long timeGetTime()
{
#ifdef _WIN32
_timeb t;
_ftime(&t);
#else
timeb t;
ftime(&t);
#endif
return (unsigned long)(t.time*1000+t.millitm);
}
#include <sys/time.h>
#else
#include <windows.h>
#include <windowsx.h>
#include <sys/timeb.h> // ftime(), struct timeb
#endif
inline u64 GetMicroTime()
{
#ifdef _WIN32
extern LARGE_INTEGER g_counterfreq;
LARGE_INTEGER count;
QueryPerformanceCounter(&count);
return count.QuadPart * 1000000 / g_counterfreq.QuadPart;
#else
timeval t;
gettimeofday(&t, NULL);
return t.tv_sec*1000000+t.tv_usec;
#endif
}
#if !defined(_MSC_VER) && !defined(HAVE_ALIGNED_MALLOC)
#include <assert.h>
// declare linux equivalents
static __forceinline void* pcsx2_aligned_malloc(size_t size, size_t align)
{
assert( align < 0x10000 );
char* p = (char*)malloc(size+align);
int off = 2+align - ((int)(uptr)(p+2) % align);
p += off;
*(u16*)(p-2) = off;
return p;
}
static __forceinline void pcsx2_aligned_free(void* pmem)
{
if( pmem != NULL ) {
char* p = (char*)pmem;
free(p - (int)*(u16*)(p-2));
}
}
#define _aligned_malloc pcsx2_aligned_malloc
#define _aligned_free pcsx2_aligned_free
#endif
// Atomic Operations
#if defined (_WIN32)
#ifndef __x86_64__
extern "C" LONG __cdecl _InterlockedExchangeAdd(LPLONG volatile Addend, LONG Value);
#endif
#pragma intrinsic (_InterlockedExchangeAdd)
#define InterlockedExchangeAdd _InterlockedExchangeAdd
#else
//typedef void* PVOID;
static __forceinline long InterlockedExchange(volatile long* Target, long Value)
{
long result;
/*
* The XCHG instruction always locks the bus with or without the
* LOCKED prefix. This makes it significantly slower than CMPXCHG on
* uni-processor machines. The Windows InterlockedExchange function
* is nearly 3 times faster than the XCHG instruction, so this routine
* is not yet very useful for speeding up pthreads.
*/
__asm__ __volatile__ (
"xchgl %2,%1"
:"=r" (result)
:"m" (*Target), "0" (Value));
return result;
}
static __forceinline long InterlockedExchangeAdd(volatile long* Addend, long Value)
{
__asm__ __volatile__(
".intel_syntax\n"
"lock xadd [%0], %%eax\n"
".att_syntax\n" : : "r"(Addend), "a"(Value) : "memory");
}
static __forceinline long InterlockedCompareExchange(volatile long *dest, long value, long comp)
{
long result;
__asm__ __volatile__ (
"lock\n\t"
"cmpxchgl %2,%1" /* if (EAX == [location]) */
/* [location] = value */
/* else */
/* EAX = [location] */
:"=a" (result)
:"m" (*dest), "r" (value), "a" (comp));
return result;
}
#endif