Re: Help with porting opengl java libraries (gluegen2 / libjogl2-java) to ppc64el

[Gilles Filippini <pini@debian.org>]

Hi Frédéric,

Le 2015-10-09 23:28, Gilles Filippini a écrit :
> Le 2015-10-09 15:47, Gilles Filippini a écrit :
> > Le 2015-10-09 14:17, Frederic Bonnard a écrit :
> > > > Would you mind building from the source packages? I should have them
> > > > ready by this evening.
> > >
> > > Sources are ok for me. This evening, I won't be next to the machine.
> > > Will a remote X display be ok for the test ? Else I can test with a 
> > > real
> > > display on Monday morning, if it's not too late for your needs.
>
> In the meantime a new upstream release was uploaded to experimental. 
> I'd
> better update update my patches to not waste your time.

The packages are now available in experimental. You'll need 
libgluegen2-rt-java=2.3.2-1, libgluegen2-jni=2.3.2-1, 
libgluegen2-build-java=2.3.2-1, libjogl2-java=2.3.2+dfsg-1, 
libjogl2-jni=2.3.2+dfsg-1.

Then compile the attached java files with:
$ javac -cp /usr/share/java/gluegen2-rt.jar:/usr/share/java/jogl2.jar 
OneTriangle*.java

And run with:
$ java -cp .:/usr/share/java/gluegen2-rt.jar:/usr/share/java/jogl2.jar 
OneTriangleAWT

It should open a window with a colored triangle looking like this one:
<https://jogamp.org/wiki/index.php/File:JWS-cmdline-test.png>

Thanks!

_g.

import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.glu.GLU;

public class OneTriangle {
    protected static void setup( GL2 gl2, int width, int height ) {
        gl2.glMatrixMode( GL2.GL_PROJECTION );
        gl2.glLoadIdentity();

        // coordinate system origin at lower left with width and height same as the window
        GLU glu = new GLU();
        glu.gluOrtho2D( 0.0f, width, 0.0f, height );

        gl2.glMatrixMode( GL2.GL_MODELVIEW );
        gl2.glLoadIdentity();

        gl2.glViewport( 0, 0, width, height );
    }

    protected static void render( GL2 gl2, int width, int height ) {
        gl2.glClear( GL.GL_COLOR_BUFFER_BIT );

        // draw a triangle filling the window
        gl2.glLoadIdentity();
        gl2.glBegin( GL.GL_TRIANGLES );
        gl2.glColor3f( 1, 0, 0 );
        gl2.glVertex2f( 0, 0 );
        gl2.glColor3f( 0, 1, 0 );
        gl2.glVertex2f( width, 0 );
        gl2.glColor3f( 0, 0, 1 );
        gl2.glVertex2f( width / 2, height );
        gl2.glEnd();
    }
}

import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.awt.GLCanvas;

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * A minimal program that draws with JOGL in an AWT Frame.
 *
 * @author Wade Walker
 */
public class OneTriangleAWT {

    public static void main( String [] args ) {
        GLProfile glprofile = GLProfile.getDefault();
        GLCapabilities glcapabilities = new GLCapabilities( glprofile );
        final GLCanvas glcanvas = new GLCanvas( glcapabilities );

        glcanvas.addGLEventListener( new GLEventListener() {
            
            @Override
            public void reshape( GLAutoDrawable glautodrawable, int x, int y, int width, int height ) {
                OneTriangle.setup( glautodrawable.getGL().getGL2(), width, height );
            }
            
            @Override
            public void init( GLAutoDrawable glautodrawable ) {
            }
            
            @Override
            public void dispose( GLAutoDrawable glautodrawable ) {
            }
            
            @Override
            public void display( GLAutoDrawable glautodrawable ) {
                OneTriangle.render( glautodrawable.getGL().getGL2(), glautodrawable.getSurfaceWidth(), glautodrawable.getSurfaceHeight() );
            }
        });

        final Frame frame = new Frame( "One Triangle AWT" );
        frame.add( glcanvas );
        frame.addWindowListener( new WindowAdapter() {
            public void windowClosing( WindowEvent windowevent ) {
                frame.remove( glcanvas );
                frame.dispose();
                System.exit( 0 );
            }
        });

        frame.setSize( 640, 480 );
        frame.setVisible( true );
    }
}