01/10/2018, 13:57

Giải đáp về LWJGL

Em có đoạn code như sau:

package com.lwjgl.ui;

import org.lwjgl.*;
import org.lwjgl.glfw.*;
import org.lwjgl.opengl.*;
import org.lwjgl.system.*;

import java.nio.*;

import static org.lwjgl.glfw.Callbacks.*;
import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.system.MemoryStack.*;
import static org.lwjgl.system.MemoryUtil.*;

public class HelloWorld {

    // The window handle
    private long window;

    public void run() {
        System.out.println("Hello LWJGL " + Version.getVersion() + "!");

        init();
        loop();

        // Free the window callbacks and destroy the window
        glfwFreeCallbacks(window);
        glfwDestroyWindow(window);

        // Terminate GLFW and free the error callback
        glfwTerminate();
        glfwSetErrorCallback(null).free();
    }

    private void init() {
        // Setup an error callback. The default implementation
        // will print the error message in System.err.
        GLFWErrorCallback.createPrint(System.err).set();

        // Initialize GLFW. Most GLFW functions will not work before doing this.
        if ( !glfwInit() )
            throw new IllegalStateException("Unable to initialize GLFW");

        // Configure GLFW
        glfwDefaultWindowHints(); // optional, the current window hints are already the default
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creation
        glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable

        // Create the window
        window = glfwCreateWindow(300, 300, "Hello World!", NULL, NULL);
        if ( window == NULL )
            throw new RuntimeException("Failed to create the GLFW window");

        // Setup a key callback. It will be called every time a key is pressed, repeated or released.
        glfwSetKeyCallback(window, (window, key, scancode, action, mods) -> {
            if ( key == GLFW_KEY_ESCAPE && action == GLFW_RELEASE )
                glfwSetWindowShouldClose(window, true); // We will detect this in the rendering loop
        });

        // Get the thread stack and push a new frame
        try ( MemoryStack stack = stackPush() ) {
            IntBuffer pWidth = stack.mallocInt(1); // int*
            IntBuffer pHeight = stack.mallocInt(1); // int*

            // Get the window size passed to glfwCreateWindow
            glfwGetWindowSize(window, pWidth, pHeight);

            // Get the resolution of the primary monitor
            GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());

            // Center the window
            glfwSetWindowPos(
                    window,
                    (vidmode.width() - pWidth.get(0)) / 2,
                    (vidmode.height() - pHeight.get(0)) / 2
            );
        } // the stack frame is popped automatically

        // Make the OpenGL context current
        glfwMakeContextCurrent(window);
        // Enable v-sync
        glfwSwapInterval(1);

        // Make the window visible
        glfwShowWindow(window);
    }

    private void loop() {
        // 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();

        // Set the clear color
        glClearColor(1.0f, 0.0f, 0.0f, 0.0f);

        // Run the rendering loop until the user has attempted to close
        // the window or has pressed the ESCAPE key.
        while ( !glfwWindowShouldClose(window) ) {
            glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer

            glfwSwapBuffers(window); // swap the color buffers

            // Poll for window events. The key callback above will only be
            // invoked during this call.
            glfwPollEvents();
        }
    }

    public static void main(String[] args) {
        new HelloWorld().run();
    }

}

Mà khi em run nó cứ xảy ra cái lỗi như này:

[LWJGL] GLFW_API_UNAVAILABLE error
Description : WGL: The driver does not appear to support OpenGL
Stacktrace :
org.lwjgl.glfw.GLFW.nglfwCreateWindow(GLFW.java:1536)
org.lwjgl.glfw.GLFW.glfwCreateWindow(GLFW.java:1698)
com.lwjgl.ui.HelloWorld.init(HelloWorld.java:51)
com.lwjgl.ui.HelloWorld.run(HelloWorld.java:24)
com.lwjgl.ui.HelloWorld.main(HelloWorld.java:114)
Exception in thread “main” java.lang.RuntimeException: Failed to create the GLFW window
at com.lwjgl.ui.HelloWorld.init(HelloWorld.java:53)
at com.lwjgl.ui.HelloWorld.run(HelloWorld.java:24)
at com.lwjgl.ui.HelloWorld.main(HelloWorld.java:114)

Cấu hình máy của em:

Em đang dùng Windows 8.1 pro

Các cao nhân nào giỏi về vấn đề này solve hộ em với ạ!

X viết 16:11 ngày 01/10/2018

Câu hỏi thế này nên cung cấp thêm:

  • Cấu hình máy.
  • Phiên bản hđh đang sử dụng.
Phan Bá Hải viết 16:02 ngày 01/10/2018

Nếu WDDM version thấp (1.1) driver đồ hoạ trong máy là driver cũ, hoặc phần cứng không còn hỗ trợ driver mới. OpenGL driver hỗ trợ cũng thấp (của mình Intel HD Graphics gen 1) OpenGL version 1.1 Có nhiều game, graphic framework mình cài không nhận OpenGL < 1.1 . Kể cả LWJGL

Aragami1408 viết 16:10 ngày 01/10/2018

Em cảm ơn anh nhé!!!

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