obs-studio-ftl/UI/platform-windows.cpp at develop · mixer/obs-studio-ftl · GitHub

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/******************************************************************************

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, see <http://www.gnu.org/licenses/>.

******************************************************************************/

#include <algorithm>

#include <sstream>

#include "obs-config.h"

#include "obs-app.hpp"

#include "platform.hpp"

using namespace std;

#include <util/windows/win-version.h>

#include <util/platform.h>

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

#include <shellapi.h>

#include <shlobj.h>

#include <Dwmapi.h>

#include <psapi.h>

#include <mmdeviceapi.h>

#include <audiopolicy.h>

#include <util/windows/WinHandle.hpp>

#include <util/windows/HRError.hpp>

#include <util/windows/ComPtr.hpp>

static inline bool check_path(const char* data, const char *path,

string &output)

{

ostringstream str;

str << path << data;

output = str.str();

printf("Attempted path: %s\n", output.c_str());

return os_file_exists(output.c_str());

}

bool GetDataFilePath(const char *data, string &output)

{

if (check_path(data, "data/obs-studio/", output))

return true;

return check_path(data, OBS_DATA_PATH "/obs-studio/", output);

}

bool InitApplicationBundle()

{

return true;

}

string GetDefaultVideoSavePath()

{

wchar_t path_utf16[MAX_PATH];

char path_utf8[MAX_PATH] = {};

SHGetFolderPathW(NULL, CSIDL_MYVIDEO, NULL, SHGFP_TYPE_CURRENT,

path_utf16);

os_wcs_to_utf8(path_utf16, wcslen(path_utf16), path_utf8, MAX_PATH);

return string(path_utf8);

}

static vector<string> GetUserPreferredLocales()

{

vector<string> result;

ULONG num, length = 0;

if (!GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, &num,

nullptr, &length))

return result;

vector<wchar_t> buffer(length);

if (!GetUserPreferredUILanguages(MUI_LANGUAGE_NAME, &num,

&buffer.front(), &length))

return result;

result.reserve(num);

auto start = begin(buffer);

auto end_ = end(buffer);

decltype(start) separator;

while ((separator = find(start, end_, 0)) != end_) {

if (result.size() == num)

break;

char conv[MAX_PATH] = {};

os_wcs_to_utf8(&*start, separator - start, conv, MAX_PATH);

result.emplace_back(conv);

start = separator + 1;

}

return result;

}

vector<string> GetPreferredLocales()

{

vector<string> windows_locales = GetUserPreferredLocales();

auto obs_locales = GetLocaleNames();

auto windows_to_obs = [&obs_locales](string windows) {

string lang_match;

for (auto &locale_pair : obs_locales) {

auto &locale = locale_pair.first;

if (locale == windows.substr(0, locale.size()))

return locale;

if (lang_match.size())

continue;

if (locale.substr(0, 2) == windows.substr(0, 2))

lang_match = locale;

}

return lang_match;

};

vector<string> result;

result.reserve(obs_locales.size());

for (const string &locale : windows_locales) {

string match = windows_to_obs(locale);

if (!match.size())

continue;

if (find(begin(result), end(result), match) != end(result))

continue;

result.emplace_back(match);

}

return result;

}

uint32_t GetWindowsVersion()

{

static uint32_t ver = 0;

if (ver == 0) {

struct win_version_info ver_info;

get_win_ver(&ver_info);

ver = (ver_info.major << 8) | ver_info.minor;

}

return ver;

}

void SetAeroEnabled(bool enable)

{

static HRESULT (WINAPI *func)(UINT) = nullptr;

static bool failed = false;

if (!func) {

if (failed) {

return;

}

HMODULE dwm = LoadLibraryW(L"dwmapi");

if (!dwm) {

failed = true;

return;

}

func = reinterpret_cast<decltype(func)>(GetProcAddress(dwm,

"DwmEnableComposition"));

if (!func) {

failed = true;

return;

}

func(enable ? DWM_EC_ENABLECOMPOSITION : DWM_EC_DISABLECOMPOSITION);

}

bool IsAlwaysOnTop(QWidget *window)

{

DWORD exStyle = GetWindowLong((HWND)window->winId(), GWL_EXSTYLE);

return (exStyle & WS_EX_TOPMOST) != 0;

}

void SetAlwaysOnTop(QWidget *window, bool enable)

{

HWND hwnd = (HWND)window->winId();

SetWindowPos(hwnd, enable ? HWND_TOPMOST : HWND_NOTOPMOST, 0, 0, 0, 0,

SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

}

void SetProcessPriority(const char *priority)

{

if (!priority)

return;

if (strcmp(priority, "High") == 0)

SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);

else if (strcmp(priority, "AboveNormal") == 0)

SetPriorityClass(GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS);

else if (strcmp(priority, "Normal") == 0)

SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);

else if (strcmp(priority, "BelowNormal") == 0)

SetPriorityClass(GetCurrentProcess(), BELOW_NORMAL_PRIORITY_CLASS);

else if (strcmp(priority, "Idle") == 0)

SetPriorityClass(GetCurrentProcess(), IDLE_PRIORITY_CLASS);

}

void SetWin32DropStyle(QWidget *window)

{

HWND hwnd = (HWND)window->winId();

LONG_PTR ex_style = GetWindowLongPtr(hwnd, GWL_EXSTYLE);

ex_style |= WS_EX_ACCEPTFILES;

SetWindowLongPtr(hwnd, GWL_EXSTYLE, ex_style);

}

bool DisableAudioDucking(bool disable)

{

ComPtr<IMMDeviceEnumerator> devEmum;

ComPtr<IMMDevice> device;

ComPtr<IAudioSessionManager2> sessionManager2;

ComPtr<IAudioSessionControl> sessionControl;

ComPtr<IAudioSessionControl2> sessionControl2;

HRESULT result = CoCreateInstance(__uuidof(MMDeviceEnumerator),

nullptr, CLSCTX_INPROC_SERVER,

__uuidof(IMMDeviceEnumerator),

(void **)&devEmum);

if (FAILED(result))

return false;

result = devEmum->GetDefaultAudioEndpoint(eRender, eConsole, &device);

if (FAILED(result))

return false;

result = device->Activate(__uuidof(IAudioSessionManager2),

CLSCTX_INPROC_SERVER, nullptr,

(void **)&sessionManager2);

if (FAILED(result))

return false;

result = sessionManager2->GetAudioSessionControl(nullptr, 0,

&sessionControl);

if (FAILED(result))

return false;

result = sessionControl->QueryInterface(&sessionControl2);

if (FAILED(result))

return false;

result = sessionControl2->SetDuckingPreference(disable);

return SUCCEEDED(result);

}

uint64_t CurrentMemoryUsage()

{

PROCESS_MEMORY_COUNTERS pmc = {};

pmc.cb = sizeof(pmc);

if (!GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)))

return 0;

return (uint64_t)pmc.WorkingSetSize;

}

struct RunOnceMutexData {

WinHandle handle;

inline RunOnceMutexData(HANDLE h) : handle(h) {}

};

RunOnceMutex::RunOnceMutex(RunOnceMutex &&rom)

{

delete data;

data = rom.data;

rom.data = nullptr;

}

RunOnceMutex::~RunOnceMutex()

{

delete data;

}

RunOnceMutex &RunOnceMutex::operator=(RunOnceMutex &&rom)

{

delete data;

data = rom.data;

rom.data = nullptr;

return *this;

}

RunOnceMutex GetRunOnceMutex(bool &already_running)

{

string name;

if (!portable_mode) {

name = "OBSStudioCore";

} else {

char path[500];

*path = 0;

GetConfigPath(path, sizeof(path), "");

name = "OBSStudioPortable";

name += path;

}

BPtr<wchar_t> wname;

os_utf8_to_wcs_ptr(name.c_str(), name.size(), &wname);

if (wname) {

wchar_t *temp = wname;

while (*temp) {

if (!iswalnum(*temp))

*temp = L'_';

temp++;

}

HANDLE h = OpenMutexW(SYNCHRONIZE, false, wname.Get());

already_running = !!h;

if (!already_running)

h = CreateMutexW(nullptr, false, wname.Get());

RunOnceMutex rom(h ? new RunOnceMutexData(h) : nullptr);

return rom;

}

obs-studio-ftl/UI/platform-windows.cpp at develop · mixer/obs-studio-ftl · GitHub

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