obs-studio/plugins/linux-capture/xcompcap-helper.hpp

#pragma once

#include <string>
#include <list>

#define blog(level, msg, ...) blog(level, "xcompcap: " msg, ##__VA_ARGS__)

class PLock {
	pthread_mutex_t *m;
	bool islock;

public:
	PLock(const PLock &) = delete;
	PLock &operator=(const PLock &) = delete;

	PLock(pthread_mutex_t *mtx, bool trylock = false);

	~PLock();

	bool isLocked();

	void unlock();
	void lock();
};

class XErrorLock {
	bool islock;
	bool goterr;
	XErrorHandler prevhandler;

public:
	XErrorLock(const XErrorLock &) = delete;
	XErrorLock &operator=(const XErrorLock &) = delete;

	XErrorLock();
	~XErrorLock();

	bool isLocked();

	void unlock();
	void lock();

	bool gotError();
	std::string getErrorText();
	void resetError();
};

class XDisplayLock {
	bool islock;

public:
	XDisplayLock(const XDisplayLock &) = delete;
	XDisplayLock &operator=(const XDisplayLock &) = delete;

	XDisplayLock();
	~XDisplayLock();

	bool isLocked();

	void unlock();
	void lock();
};

class ObsGsContextHolder {
public:
	ObsGsContextHolder(const ObsGsContextHolder &) = delete;
	ObsGsContextHolder &operator=(const ObsGsContextHolder &) = delete;

	ObsGsContextHolder();
	~ObsGsContextHolder();
};

namespace XCompcap {
Display *disp();
void cleanupDisplay();

std::string getWindowCommand(Window win);
int getRootWindowScreen(Window root);
std::string getWindowAtom(Window win, const char *atom);
int getWindowPid(Window win);
bool ewmhIsSupported();
std::list<Window> getTopLevelWindows();
std::list<Window> getAllWindows();

inline std::string getWindowName(Window win)
{
	return getWindowAtom(win, "_NET_WM_NAME");
}

inline std::string getWindowClass(Window win)
{
	return getWindowAtom(win, "WM_CLASS");
}

void processEvents();
bool windowWasReconfigured(Window win);
}