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*
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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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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(OGLGraphicsConfig gc, 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(gc, 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.
*/
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.
*/
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).
*/
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.
*/
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.
*/
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();
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