Java GLFW.glfwMakeContextCurrent方法代碼示例

import org.lwjgl.glfw.GLFW; //導入方法依賴的package包/類
/**
    * Causes this window to obtain the current GLContext
    */
   public void makeContextCurrent() throws IllegalStateException {
if(handle == 0) {
    throw new IllegalStateException("handle is NULL");
}

GLFW.glfwMakeContextCurrent(handle);
   }
 

import org.lwjgl.glfw.GLFW; //導入方法依賴的package包/類
public static Window createWindow(Scene scene, String title) {
	if (!GLFW.glfwInit()) {
		throw new IllegalStateException();
	}
	
	errorCallback = new GLFWErrorCallback() {
		public void invoke(int error, long description) {
			System.err.println("["+ error + "] " + description);
		}
	};
	GLFW.glfwSetErrorCallback(errorCallback);

	long window = GLFW.glfwCreateWindow(scene.getWidth(), scene.getHeight(), title, MemoryUtil.NULL, MemoryUtil.NULL);

	if (window == MemoryUtil.NULL) {
		System.err.println("Window returned NULL");
		System.exit(-1);
	}

	GLFW.glfwMakeContextCurrent(window);

	GLFW.glfwShowWindow(window);
	GL.createCapabilities();
	GLFW.glfwSwapInterval(1);

	scene.setGLinitilized();
	return new Window(window);
}
 

import org.lwjgl.glfw.GLFW; //導入方法依賴的package包/類
public static void setCurrentWindowContext(Window window)
{
	GLFW.glfwMakeContextCurrent(window.handle);
}
 

import org.lwjgl.glfw.GLFW; //導入方法依賴的package包/類
protected void createWindow()
{
	// the window will stay hidden after creation
	GLFW.glfwWindowHint(GLFW.GLFW_VISIBLE, GLFW.GLFW_FALSE);

	// Configure GLFW
	GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MAJOR, 3);
	GLFW.glfwWindowHint(GLFW.GLFW_CONTEXT_VERSION_MINOR, 2);
	GLFW.glfwWindowHint(GLFW.GLFW_OPENGL_FORWARD_COMPAT, GLFW.GLFW_TRUE);
	GLFW.glfwWindowHint(GLFW.GLFW_OPENGL_PROFILE,
			GLFW.GLFW_OPENGL_CORE_PROFILE);

	// Create the window
	this.handle = GLFW.glfwCreateWindow(this.width, this.height, this.title,
			MemoryUtil.NULL, MemoryUtil.NULL);
	if (this.handle == MemoryUtil.NULL)
	{
		throw new RuntimeException("Failed to create the GLFW window");
	}

	//Create the input context
	//this.inputEngine = new InputEngine(this);

	//Setup a size callback.
	GLFW.glfwSetWindowSizeCallback(this.handle, (window, w, h) ->
	{
		int prevW = this.width;
		int prevH = this.height;
		this.width = w;
		this.height = h;
		this.onWindowSizeChanged.notifyListeners(new int[]{
				this.width, this.height, prevW, prevH
		});
	});

	//Setup a position callback
	GLFW.glfwSetWindowPosCallback(this.handle, (window, xpos, ypos) -> {
		int prevX = this.x;
		int prevY = this.y;
		this.x = xpos;
		this.y = ypos;
		this.onWindowPosChanged.notifyListeners(new int[]{
				this.x, this.y, prevX, prevY
		});
	});

	this.makeWindowCentered();

	// Make the OpenGL context current
	GLFW.glfwMakeContextCurrent(this.handle);

	// Enable v-sync
	GLFW.glfwSwapInterval(this.vsync ? 1 : 0);

	// This line is critical for LWJGL's interoperation with GLFW's
	// OpenGL context, or any context that is managed externally.
	// LWJGL detects the context that is current in the current thread,
	// creates the GLCapabilities instance and makes the OpenGL
	// bindings available for use.
	GL.createCapabilities();

	System.out.println("OPENGL " + GL11.glGetString(GL11.GL_VERSION));

	// Set the clear color
	GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);

	//Enable depth testing
	GL11.glEnable(GL11.GL_DEPTH_TEST);

	//Set current viewport
	this.view = new View(this);
}