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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package sun.java2d.opengl;

import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.image.ColorModel;

import sun.awt.X11ComponentPeer;
import sun.java2d.SurfaceData;

public abstract class GLXSurfaceData extends OGLSurfaceData {

    protected X11ComponentPeer peer;
    private GLXGraphicsConfig graphicsConfig;

    private native void initOps(OGLGraphicsConfig gc, X11ComponentPeer peer,
                                long aData);

    protected GLXSurfaceData(X11ComponentPeer peer, GLXGraphicsConfig gc,
                             ColorModel cm, int type)
    {
        super(gc, cm, type);
        this.peer = peer;
        this.graphicsConfig = gc;
        initOps(gc, peer, graphicsConfig.getAData());
    }

    public GraphicsConfiguration getDeviceConfiguration() {
        return graphicsConfig;
    }

    
Creates a SurfaceData object representing the primary (front) buffer of an on-screen Window.
/** * Creates a SurfaceData object representing the primary (front) buffer * of an on-screen Window. */
public static GLXWindowSurfaceData createData(X11ComponentPeer peer) { GLXGraphicsConfig gc = getGC(peer); return new GLXWindowSurfaceData(peer, gc); }
Creates a SurfaceData object representing the back buffer of a double-buffered on-screen Window.
/** * Creates a SurfaceData object representing the back buffer of a * double-buffered on-screen Window. */
public static GLXOffScreenSurfaceData createData(X11ComponentPeer peer, Image image, int type) { GLXGraphicsConfig gc = getGC(peer); Rectangle r = peer.getBounds(); if (type == FLIP_BACKBUFFER) { return new GLXOffScreenSurfaceData(peer, gc, r.width, r.height, image, peer.getColorModel(), FLIP_BACKBUFFER); } else { return new GLXVSyncOffScreenSurfaceData(peer, gc, r.width, r.height, image, peer.getColorModel(), type); } }
Creates a SurfaceData object representing an off-screen buffer (either a FBO or Texture).
/** * Creates a SurfaceData object representing an off-screen buffer (either * a FBO or Texture). */
public static GLXOffScreenSurfaceData createData(GLXGraphicsConfig gc, int width, int height, ColorModel cm, Image image, int type) { return new GLXOffScreenSurfaceData(null, gc, width, height, image, cm, type); } public static GLXGraphicsConfig getGC(X11ComponentPeer peer) { if (peer != null) { return (GLXGraphicsConfig)peer.getGraphicsConfiguration(); } else { // REMIND: this should rarely (never?) happen, but what if // default config is not GLX? GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = env.getDefaultScreenDevice(); return (GLXGraphicsConfig)gd.getDefaultConfiguration(); } } public static class GLXWindowSurfaceData extends GLXSurfaceData { protected final int scale; public GLXWindowSurfaceData(X11ComponentPeer peer, GLXGraphicsConfig gc) { super(peer, gc, peer.getColorModel(), WINDOW); scale = gc.getScale(); } public SurfaceData getReplacement() { return peer.getSurfaceData(); } public Rectangle getBounds() { Rectangle r = peer.getBounds(); r.x = r.y = 0; r.width = (int) Math.ceil(r.width * scale); r.height = (int) Math.ceil(r.height * scale); return r; }
Returns destination Component associated with this SurfaceData.
/** * Returns destination Component associated with this SurfaceData. */
public Object getDestination() { return peer.getTarget(); } @Override public double getDefaultScaleX() { return scale; } @Override public double getDefaultScaleY() { return scale; } }
A surface which implements a v-synced flip back-buffer with COPIED FlipContents. This surface serves as a back-buffer to the outside world, while it is actually an offscreen surface. When the BufferStrategy this surface belongs to is showed, it is first copied to the real private FLIP_BACKBUFFER, which is then flipped.
/** * A surface which implements a v-synced flip back-buffer with COPIED * FlipContents. * * This surface serves as a back-buffer to the outside world, while * it is actually an offscreen surface. When the BufferStrategy this surface * belongs to is showed, it is first copied to the real private * FLIP_BACKBUFFER, which is then flipped. */
public static class GLXVSyncOffScreenSurfaceData extends GLXOffScreenSurfaceData { private GLXOffScreenSurfaceData flipSurface; public GLXVSyncOffScreenSurfaceData(X11ComponentPeer peer, GLXGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(peer, gc, width, height, image, cm, type); flipSurface = GLXSurfaceData.createData(peer, image, FLIP_BACKBUFFER); } public SurfaceData getFlipSurface() { return flipSurface; } @Override public void flush() { flipSurface.flush(); super.flush(); } } public static class GLXOffScreenSurfaceData extends GLXSurfaceData { private Image offscreenImage; private int width, height; private final int scale; public GLXOffScreenSurfaceData(X11ComponentPeer peer, GLXGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(peer, gc, cm, type); scale = gc.getDevice().getScaleFactor(); this.width = width * scale; this.height = height * scale; offscreenImage = image; initSurface(this.width, this.height); } public SurfaceData getReplacement() { return restoreContents(offscreenImage); } public Rectangle getBounds() { if (type == FLIP_BACKBUFFER) { Rectangle r = peer.getBounds(); r.x = r.y = 0; r.width = (int) Math.ceil(r.width * scale); r.height = (int) Math.ceil(r.height * scale); return r; } else { return new Rectangle(width, height); } }
Returns destination Image associated with this SurfaceData.
/** * Returns destination Image associated with this SurfaceData. */
public Object getDestination() { return offscreenImage; } @Override public double getDefaultScaleX() { return scale; } @Override public double getDefaultScaleY() { return scale; } } }