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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _OFFSCREENGLCONTEXT_H
#define _OFFSCREENGLCONTEXT_H
#include "Rendering/GL/myGL.h"
#include <functional>
#include "System/Threading/SpringThreading.h"
/**
* @brief COffscreenGLThread
* Runs a std::bind in an additional thread with an offscreen OpenGL context.
* (Don't try render to the 'screen' a.k.a. default framebuffer in that thread, the results will be undetermistic)
*/
class COffscreenGLThread
{
public:
COffscreenGLThread() = default;
COffscreenGLThread(std::function<void()> f);
~COffscreenGLThread() { join(); }
COffscreenGLThread(const COffscreenGLThread& t) = delete;
COffscreenGLThread(COffscreenGLThread&& t) { *this = std::move(t); }
COffscreenGLThread& operator = (const COffscreenGLThread& t) = delete;
COffscreenGLThread& operator = (COffscreenGLThread&& t) {
thread = std::move(t.thread);
return *this;
};
void join();
bool joinable() const { return (thread.joinable()); }
private:
void WrapFunc(std::function<void()> f);
spring::thread thread;
};
#endif // _OFFSCREENGLCONTEXT_H
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