Class Renderer_OGL10

olcPixelGameEngine.h:5302–5741

namespace olc
{
	class Renderer_OGL10 : public olc::Renderer
	{
	private:
#if defined(OLC_PLATFORM_GLUT)
		bool mFullScreen = false;
#else
		glDeviceContext_t glDeviceContext = 0;
		glRenderContext_t glRenderContext = 0;
#endif

		bool bSync = false;
		olc::DecalMode nDecalMode = olc::DecalMode(-1); // Thanks Gusgo & Bispoo
		olc::DecalStructure nDecalStructure = olc::DecalStructure(-1);
		std::array<float, 16> matProjection = { {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1} };
#if defined(OLC_PLATFORM_X11)
		X11::Display* olc_Display = nullptr;
		X11::Window* olc_Window = nullptr;
		X11::XVisualInfo* olc_VisualInfo = nullptr;
#endif

	public:
		void PrepareDevice() override
		{
#if defined(OLC_PLATFORM_GLUT)
			//glutInit has to be called with main() arguments, make fake ones
			int argc = 0;
			char* argv[1] = { (char*)"" };
			glutInit(&argc, argv);
			glutInitWindowPosition(0, 0);
			glutInitWindowSize(512, 512);
			glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH | GLUT_RGBA);
			// Creates the window and the OpenGL context for it
			glutCreateWindow("OneLoneCoder.com - Pixel Game Engine");
			glEnable(GL_TEXTURE_2D); // Turn on texturing
			glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
#endif
		}

		olc::rcode CreateDevice(std::vector<void*> params, bool bFullScreen, bool bVSYNC) override
		{
#if defined(OLC_PLATFORM_WINAPI)
			// Create Device Context
			glDeviceContext = GetDC((HWND)(params[0]));
			PIXELFORMATDESCRIPTOR pfd =
			{
				sizeof(PIXELFORMATDESCRIPTOR), 1,
				PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
				PFD_TYPE_RGBA, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
				PFD_MAIN_PLANE, 0, 0, 0, 0
			};

			int pf = 0;
			if (!(pf = ChoosePixelFormat(glDeviceContext, &pfd))) return olc::FAIL;
			SetPixelFormat(glDeviceContext, pf, &pfd);

			if (!(glRenderContext = wglCreateContext(glDeviceContext))) return olc::FAIL;
			wglMakeCurrent(glDeviceContext, glRenderContext);