pcsx2/common/Windows/WinMisc.cpp

130 lines
2.8 KiB
C++

// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
// SPDX-License-Identifier: LGPL-3.0+
#if defined(_WIN32)
#include "common/FileSystem.h"
#include "common/HostSys.h"
#include "common/RedtapeWindows.h"
#include "common/StringUtil.h"
#include "common/Threading.h"
#include "common/WindowInfo.h"
#include "fmt/core.h"
#include <mmsystem.h>
#include <timeapi.h>
#include <VersionHelpers.h>
// If anything tries to read this as an initializer, we're in trouble.
static const LARGE_INTEGER lfreq = []() {
LARGE_INTEGER ret = {};
QueryPerformanceFrequency(&ret);
return ret;
}();
// This gets leaked... oh well.
static thread_local HANDLE s_sleep_timer;
static thread_local bool s_sleep_timer_created = false;
static HANDLE GetSleepTimer()
{
if (s_sleep_timer_created)
return s_sleep_timer;
s_sleep_timer_created = true;
s_sleep_timer = CreateWaitableTimerEx(nullptr, nullptr, CREATE_WAITABLE_TIMER_HIGH_RESOLUTION, TIMER_ALL_ACCESS);
if (!s_sleep_timer)
s_sleep_timer = CreateWaitableTimer(nullptr, TRUE, nullptr);
return s_sleep_timer;
}
u64 GetTickFrequency()
{
return lfreq.QuadPart;
}
u64 GetCPUTicks()
{
LARGE_INTEGER count;
QueryPerformanceCounter(&count);
return count.QuadPart;
}
u64 GetPhysicalMemory()
{
MEMORYSTATUSEX status;
status.dwLength = sizeof(status);
GlobalMemoryStatusEx(&status);
return status.ullTotalPhys;
}
// Calculates the Windows OS Version and processor architecture, and returns it as a
// human-readable string. :)
std::string GetOSVersionString()
{
std::string retval;
SYSTEM_INFO si;
GetNativeSystemInfo(&si);
if (IsWindows10OrGreater())
{
retval = "Microsoft ";
retval += IsWindowsServer() ? "Windows Server 2016+" : "Windows 10+";
}
else
retval = "Unsupported Operating System!";
return retval;
}
bool WindowInfo::InhibitScreensaver(const WindowInfo& wi, bool inhibit)
{
EXECUTION_STATE flags = ES_CONTINUOUS;
if (inhibit)
flags |= ES_DISPLAY_REQUIRED;
SetThreadExecutionState(flags);
return true;
}
bool Common::PlaySoundAsync(const char* path)
{
const std::wstring wpath = FileSystem::GetWin32Path(path);
return PlaySoundW(wpath.c_str(), NULL, SND_ASYNC | SND_NODEFAULT);
}
void Threading::Sleep(int ms)
{
::Sleep(ms);
}
void Threading::SleepUntil(u64 ticks)
{
// This is definitely sub-optimal, but there's no way to sleep until a QPC timestamp on Win32.
const s64 diff = static_cast<s64>(ticks - GetCPUTicks());
if (diff <= 0)
return;
const HANDLE hTimer = GetSleepTimer();
if (!hTimer)
return;
const u64 one_hundred_nanos_diff = (static_cast<u64>(diff) * 10000000ULL) / GetTickFrequency();
if (one_hundred_nanos_diff == 0)
return;
LARGE_INTEGER fti;
fti.QuadPart = -static_cast<s64>(one_hundred_nanos_diff);
if (SetWaitableTimer(hTimer, &fti, 0, nullptr, nullptr, FALSE))
{
WaitForSingleObject(hTimer, INFINITE);
return;
}
}
#endif