opengl - 卡支持 OpenGL 4.1 但线程上没有 GL4 实现？

Question

当我运行测试 JOGL 应用程序时，它说当我的系统支持 OpenGL 4.1 时，线程上只有 GL2 可用(根据 OpenGl Extensions Viewer) .

有人看出为什么线程中只支持 GL2 的明显原因吗？

我使用的是 2015 年中的 Macbook Pro，配备 Intel Iris 和 AMD Radeon R9 显卡。

这是《使用 Java 进行 OpenGL 计算机图形编程》一书中的第一个练习。 4

Java Version: Java8

JOGL Version: 2.3.2

GlueGen Version: 2.3.2

import java.nio.*;
import javax.swing.*;
import static com.jogamp.opengl.GL4.*;
import com.jogamp.opengl.*;
import com.jogamp.opengl.awt.GLCanvas;
import com.jogamp.common.nio.Buffers;

public class Code extends JFrame implements GLEventListener {
    private GLCanvas myCanvas;

    public Code() {
        setTitle("Chapter 2 - program1");
        setSize(600, 400);
        setLocation(200, 200);
        myCanvas = new GLCanvas();
        myCanvas.addGLEventListener(this);
        this.add(myCanvas);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

    public void display(GLAutoDrawable drawable) {
        GL4 gl = (GL4) GLContext.getCurrentGL();
        drawable.setGL(new DebugGL4(gl));
        float bkg[] = { 1.0f, 0.0f, 0.0f, 1.0f };
        FloatBuffer bkgBuffer = Buffers.newDirectFloatBuffer(bkg);
        gl.glClearBufferfv(GL_COLOR, 0, bkgBuffer);
    }

    public static void main(String[] args) {
        new Code();
    }

    public void init(GLAutoDrawable drawable) {
        GL4 gl = drawable.getGL().getGL4(); // This is where the code fails
        String version = gl.glGetString(GL4.GL_VERSION);
        String shaderversion = gl.glGetString(GL4.GL_SHADING_LANGUAGE_VERSION);
        System.out.println("GLVERSION: " + version + " shading language: " + shaderversion );
    }

    public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
    public void dispose(GLAutoDrawable drawable) { }
}

异常(exception):

/Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home/bin/java -Didea.launcher.port=7535 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA.app/Contents/bin" -classpath /private/var/folders/rd/tltb7sk928x_n429dyctdt8c0000gn/T/classpath1.jar -Dfile.encoding=UTF-8 com.intellij.rt.execution.application.AppMain Code
Exception in thread "AWT-EventQueue-0" com.jogamp.opengl.GLException: Caught GLException: Not a GL4 implementation on thread AWT-EventQueue-0
    at com.jogamp.opengl.GLException.newGLException(GLException.java:76)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1327)
    at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
    at com.jogamp.opengl.awt.GLCanvas$12.run(GLCanvas.java:1438)
    at com.jogamp.opengl.Threading.invoke(Threading.java:223)
    at com.jogamp.opengl.awt.GLCanvas.display(GLCanvas.java:505)
    at com.jogamp.opengl.awt.GLCanvas.paint(GLCanvas.java:559)
    at sun.awt.RepaintArea.paintComponent(RepaintArea.java:264)
    at sun.lwawt.LWRepaintArea.paintComponent(LWRepaintArea.java:59)
    at sun.awt.RepaintArea.paint(RepaintArea.java:240)
    at sun.lwawt.LWComponentPeer.handleJavaPaintEvent(LWComponentPeer.java:1314)
    at sun.lwawt.LWComponentPeer.handleEvent(LWComponentPeer.java:1198)
    at java.awt.Component.dispatchEventImpl(Component.java:4965)
    at java.awt.Component.dispatchEvent(Component.java:4711)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.awt.EventQueue$4.run(EventQueue.java:731)
    at java.awt.EventQueue$4.run(EventQueue.java:729)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: com.jogamp.opengl.GLException: Not a GL4 implementation
    at jogamp.opengl.gl4.GL4bcImpl.getGL4(GL4bcImpl.java:40464)
    at Code.init(Code.java:38)
    at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:644)
    at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:667)
    at com.jogamp.opengl.awt.GLCanvas$10.run(GLCanvas.java:1407)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1291)
    ... 30 more
Exception in thread "AWT-EventQueue-0" com.jogamp.opengl.GLException: Caught GLException: Thread[AWT-EventQueue-0,6,main] glGetError() returned the following error codes after a call to glActiveTexture(<int> 0x84C0): GL_INVALID_OPERATION ( 1282 0x502),  on thread AWT-EventQueue-0
    at com.jogamp.opengl.GLException.newGLException(GLException.java:76)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1327)
    at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
    at com.jogamp.opengl.awt.GLCanvas$12.run(GLCanvas.java:1438)
    at com.jogamp.opengl.Threading.invoke(Threading.java:223)
    at com.jogamp.opengl.awt.GLCanvas.display(GLCanvas.java:505)
    at com.jogamp.opengl.awt.GLCanvas.paint(GLCanvas.java:559)
    at com.jogamp.opengl.awt.GLCanvas.update(GLCanvas.java:866)
    at sun.awt.RepaintArea.updateComponent(RepaintArea.java:255)
    at sun.lwawt.LWRepaintArea.updateComponent(LWRepaintArea.java:47)
    at sun.awt.RepaintArea.paint(RepaintArea.java:232)
    at sun.lwawt.LWComponentPeer.handleJavaPaintEvent(LWComponentPeer.java:1314)
    at sun.lwawt.LWComponentPeer.handleEvent(LWComponentPeer.java:1198)
    at java.awt.Component.dispatchEventImpl(Component.java:4965)
    at java.awt.Component.dispatchEvent(Component.java:4711)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
    at java.awt.EventQueue.access$500(EventQueue.java:97)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.awt.EventQueue$3.run(EventQueue.java:703)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.awt.EventQueue$4.run(EventQueue.java:731)
    at java.awt.EventQueue$4.run(EventQueue.java:729)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: com.jogamp.opengl.GLException: Thread[AWT-EventQueue-0,6,main] glGetError() returned the following error codes after a call to glActiveTexture(<int> 0x84C0): GL_INVALID_OPERATION ( 1282 0x502), 
    at com.jogamp.opengl.DebugGL4bc.writeGLError(DebugGL4bc.java:31803)
    at com.jogamp.opengl.DebugGL4bc.glActiveTexture(DebugGL4bc.java:232)
    at jogamp.opengl.GLFBODrawableImpl.swapFBOImpl(GLFBODrawableImpl.java:471)
    at jogamp.opengl.GLFBODrawableImpl.swapBuffersImpl(GLFBODrawableImpl.java:426)
    at jogamp.opengl.GLDrawableImpl.swapBuffers(GLDrawableImpl.java:88)
    at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1295)
    ... 31 more

Process finished with exit code 0

Answer 1

事实证明，OSX 回退到 OpenGL 2.1，因此您需要自己设置核心配置文件。

$ glxinfo | grep OpenGL
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: AMD Radeon R9 M370X OpenGL Engine
OpenGL version string: 2.1 ATI-1.42.15
OpenGL shading language version string: 1.20

我能够通过将 GLCapability 传递到 GLCanvas 构造函数来设置核心版本 (OpenGL 4.1)。

这是新的、固定的构造函数:

public Code() {
    setTitle("Chapter 2 - program1");
    setSize(600, 400);
    setLocation(200, 200);

    // This was the fix
    GLProfile glp = GLProfile.getMaxProgrammableCore(true);
    GLCapabilities caps = new GLCapabilities(glp);
    myCanvas = new GLCanvas(caps);

    myCanvas.addGLEventListener(this);
    this.add(myCanvas);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
}