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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package sun.java2d.opengl;

import java.awt.Component;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.geom.AffineTransform;
import java.awt.image.ColorModel;
import sun.awt.SunToolkit;
import sun.awt.Win32GraphicsDevice;
import sun.awt.windows.WComponentPeer;
import sun.java2d.SurfaceData;
import sun.java2d.pipe.Region;

public abstract class WGLSurfaceData extends OGLSurfaceData {

    protected WComponentPeer peer;
    private WGLGraphicsConfig graphicsConfig;
    protected double scaleX = 1;
    protected double scaleY = 1;

    private native void initOps(long pConfigInfo, WComponentPeer peer,
                                long hwnd);

    protected WGLSurfaceData(WComponentPeer peer, WGLGraphicsConfig gc,
                             ColorModel cm, int type)
    {
        super(gc, cm, type);
        this.peer = peer;
        this.graphicsConfig = gc;
        Win32GraphicsDevice device = gc.getDevice();
        this.scaleX = type == TEXTURE ? 1 : device.getDefaultScaleX();
        this.scaleY = type == TEXTURE ? 1 : device.getDefaultScaleY();

        long pConfigInfo = gc.getNativeConfigInfo();
        long hwnd = peer != null ? peer.getHWnd() : 0L;

        initOps(pConfigInfo, peer, hwnd);
    }

    @Override
    public double getDefaultScaleX() {
        return scaleX;
    }

    @Override
    public double getDefaultScaleY() {
        return scaleY;
    }

    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 WGLWindowSurfaceData createData(WComponentPeer peer) { // the OGL pipeline can render directly to the screen and interfere // with layered windows, which is why we don't allow accelerated // surfaces in this case if (!peer.isAccelCapable() || !SunToolkit.isContainingTopLevelOpaque((Component)peer.getTarget())) { return null; } WGLGraphicsConfig gc = getGC(peer); return new WGLWindowSurfaceData(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 WGLOffScreenSurfaceData createData(WComponentPeer peer, Image image, int type) { // the OGL pipeline can render directly to the screen and interfere // with layered windows, which is why we don't allow accelerated // surfaces in this case if (!peer.isAccelCapable() || !SunToolkit.isContainingTopLevelOpaque((Component)peer.getTarget())) { return null; } WGLGraphicsConfig gc = getGC(peer); Rectangle r = peer.getBounds(); if (type == FLIP_BACKBUFFER) { return new WGLOffScreenSurfaceData(peer, gc, r.width, r.height, image, peer.getColorModel(), type); } else { return new WGLVSyncOffScreenSurfaceData(peer, gc, r.width, r.height, image, peer.getColorModel(), type); } }
Creates a SurfaceData object representing an off-screen buffer (either a Pbuffer or Texture).
/** * Creates a SurfaceData object representing an off-screen buffer (either * a Pbuffer or Texture). */
public static WGLOffScreenSurfaceData createData(WGLGraphicsConfig gc, int width, int height, ColorModel cm, Image image, int type) { return new WGLOffScreenSurfaceData(null, gc, width, height, image, cm, type); } public static WGLGraphicsConfig getGC(WComponentPeer peer) { if (peer != null) { return (WGLGraphicsConfig)peer.getGraphicsConfiguration(); } else { // REMIND: this should rarely (never?) happen, but what if // default config is not WGL? GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = env.getDefaultScreenDevice(); return (WGLGraphicsConfig)gd.getDefaultConfiguration(); } } public static class WGLWindowSurfaceData extends WGLSurfaceData { public WGLWindowSurfaceData(WComponentPeer peer, WGLGraphicsConfig gc) { super(peer, gc, peer.getColorModel(), WINDOW); } public SurfaceData getReplacement() { return peer.getSurfaceData(); } public Rectangle getBounds() { Rectangle r = peer.getBounds(); r.x = r.y = 0; r.width = Region.clipRound(r.width * scaleX); r.height = Region.clipRound(r.height * scaleY); return r; }
Returns destination Component associated with this SurfaceData.
/** * Returns destination Component associated with this SurfaceData. */
public Object getDestination() { return peer.getTarget(); } }
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 WGLVSyncOffScreenSurfaceData extends WGLOffScreenSurfaceData { private WGLOffScreenSurfaceData flipSurface; public WGLVSyncOffScreenSurfaceData(WComponentPeer peer, WGLGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(peer, gc, width, height, image, cm, type); flipSurface = WGLSurfaceData.createData(peer, image, FLIP_BACKBUFFER); } public SurfaceData getFlipSurface() { return flipSurface; } @Override public void flush() { flipSurface.flush(); super.flush(); } } public static class WGLOffScreenSurfaceData extends WGLSurfaceData { private Image offscreenImage; private int width, height; public WGLOffScreenSurfaceData(WComponentPeer peer, WGLGraphicsConfig gc, int width, int height, Image image, ColorModel cm, int type) { super(peer, gc, cm, type); this.width = Region.clipRound(width * scaleX); this.height = Region.clipRound(height * scaleY); 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.width = Region.clipRound(r.width * scaleX); r.height = Region.clipRound(r.height * scaleY); r.x = r.y = 0; 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; } }
Updates the layered window with the contents of the surface.
Params:
  • psdops – pointer to the native ogl sd structure
  • peer – pointer to the AwtWindow peer data
  • w – width of the window
  • h – height of the window
See Also:
/** * Updates the layered window with the contents of the surface. * * @param psdops pointer to the native ogl sd structure * @param peer pointer to the AwtWindow peer data * @param w width of the window * @param h height of the window * @see sun.awt.windows.TranslucentWindowPainter */
public static native boolean updateWindowAccelImpl(long psdops, WComponentPeer peer, int w, int h); }