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ImHex/plugins/windows/source/content/ui_items.cpp

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#include <hex/api/content_registry.hpp>
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#include <hex/helpers/utils.hpp>
#include <windows.h>
#include <psapi.h>
#include <imgui.h>
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#include <fonts/codicons_font.h>
#include <hex/ui/imgui_imhex_extensions.h>
#include <hex/api/event_manager.hpp>
namespace hex::plugin::windows {
void addFooterItems() {
static bool showResourceUsage = true;
EventSettingsChanged::subscribe([]{
showResourceUsage = ContentRegistry::Settings::read<bool>("hex.builtin.setting.interface", "hex.builtin.setting.interface.show_resource_usage", true);
});
ContentRegistry::Interface::addFooterItem([] {
if (!showResourceUsage)
return;
static float cpuUsage = 0.0F;
if (ImGuiExt::HasSecondPassed()) {
static ULARGE_INTEGER lastCPU, lastSysCPU, lastUserCPU;
static u32 numProcessors;
static HANDLE self = GetCurrentProcess();
ULARGE_INTEGER now, sys, user;
{
FILETIME ftime, fsys, fuser;
GetSystemTimeAsFileTime(&ftime);
memcpy(&now, &ftime, sizeof(FILETIME));
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
memcpy(&sys, &fsys, sizeof(FILETIME));
memcpy(&user, &fuser, sizeof(FILETIME));
}
if (lastCPU.QuadPart == 0) {
SYSTEM_INFO sysInfo;
FILETIME ftime, fsys, fuser;
GetSystemInfo(&sysInfo);
numProcessors = sysInfo.dwNumberOfProcessors;
GetSystemTimeAsFileTime(&ftime);
memcpy(&lastCPU, &ftime, sizeof(FILETIME));
self = GetCurrentProcess();
GetProcessTimes(self, &ftime, &ftime, &fsys, &fuser);
memcpy(&lastSysCPU, &fsys, sizeof(FILETIME));
memcpy(&lastUserCPU, &fuser, sizeof(FILETIME));
} else {
cpuUsage = (sys.QuadPart - lastSysCPU.QuadPart) +
(user.QuadPart - lastUserCPU.QuadPart);
cpuUsage /= (now.QuadPart - lastCPU.QuadPart);
cpuUsage /= numProcessors;
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lastCPU = now;
lastUserCPU = user;
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lastSysCPU = sys;
}
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cpuUsage *= 100;
}
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ImGuiExt::TextFormatted(ICON_VS_DASHBOARD " {0:2}.{1:02}%", u32(cpuUsage), u32(cpuUsage * 100) % 100);
});
ContentRegistry::Interface::addFooterItem([] {
if (!showResourceUsage)
return;
static MEMORYSTATUSEX memInfo;
static PROCESS_MEMORY_COUNTERS_EX pmc;
if (ImGuiExt::HasSecondPassed()) {
memInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&memInfo);
GetProcessMemoryInfo(GetCurrentProcess(), reinterpret_cast<PROCESS_MEMORY_COUNTERS *>(&pmc), sizeof(pmc));
}
auto totalMem = memInfo.ullTotalPhys;
auto usedMem = pmc.WorkingSetSize;
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ImGuiExt::TextFormatted(ICON_VS_CHIP " {0} / {1}", hex::toByteString(usedMem), hex::toByteString(totalMem));
});
}
}