Class Platform_Linux

olcPixelGameEngine.h:7001–7266

namespace olc
{
	class Platform_Linux : public olc::Platform
	{
	private:
		X11::Display* olc_Display = nullptr;
		X11::Window					 olc_WindowRoot;
		X11::Window					 olc_Window;
		X11::XVisualInfo* olc_VisualInfo;
		X11::Colormap                olc_ColourMap;
		X11::XSetWindowAttributes    olc_SetWindowAttribs;

	public:
		virtual olc::rcode ApplicationStartUp() override
		{
			return olc::rcode::OK;
		}

		virtual olc::rcode ApplicationCleanUp() override
		{
			XDestroyWindow(olc_Display, olc_Window);
			return olc::rcode::OK;
		}

		virtual olc::rcode ThreadStartUp() override
		{
			return olc::rcode::OK;
		}

		virtual olc::rcode ThreadCleanUp() override
		{
			renderer->DestroyDevice();
			return olc::OK;
		}

		virtual olc::rcode CreateGraphics(bool bFullScreen, bool bEnableVSYNC, const olc::vi2d& vViewPos, const olc::vi2d& vViewSize) override
		{
			if (renderer->CreateDevice({ olc_Display, &olc_Window, olc_VisualInfo }, bFullScreen, bEnableVSYNC) == olc::rcode::OK)
			{
				renderer->UpdateViewport(vViewPos, vViewSize);
				return olc::rcode::OK;
			}
			else
				return olc::rcode::FAIL;
		}

		virtual olc::rcode CreateWindowPane(const olc::vi2d& vWindowPos, olc::vi2d& vWindowSize, bool bFullScreen) override
		{
			using namespace X11;
			XInitThreads();

			// Grab the deafult display and window
			olc_Display = XOpenDisplay(NULL);
			olc_WindowRoot = DefaultRootWindow(olc_Display);

			// Based on the display capabilities, configure the appearance of the window
			GLint olc_GLAttribs[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
			olc_VisualInfo = glXChooseVisual(olc_Display, 0, olc_GLAttribs);
			olc_ColourMap = XCreateColormap(olc_Display, olc_WindowRoot, olc_VisualInfo->visual, AllocNone);
			olc_SetWindowAttribs.colormap = olc_ColourMap;