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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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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*
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package sun.java2d.opengl;
import java.awt.AWTException;
import java.awt.BufferCapabilities;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.ImageCapabilities;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.DirectColorModel;
import java.awt.image.VolatileImage;
import java.awt.image.WritableRaster;
import sun.awt.X11ComponentPeer;
import sun.awt.X11GraphicsConfig;
import sun.awt.X11GraphicsDevice;
import sun.awt.X11GraphicsEnvironment;
import sun.awt.image.OffScreenImage;
import sun.awt.image.SunVolatileImage;
import sun.java2d.SurfaceData;
public class GLXGraphicsConfig
extends X11GraphicsConfig
implements OGLGraphicsConfig
{
private static ImageCapabilities imageCaps = new GLXImageCaps();
private BufferCapabilities bufferCaps;
private long pConfigInfo;
private int oglCaps;
private OGLContext context;
private static native long getGLXConfigInfo(int screennum, int visualnum);
private static native int getOGLCapabilities(long configInfo);
private native void initConfig(long aData, long ctxinfo);
private GLXGraphicsConfig(X11GraphicsDevice device, int visualnum,
long configInfo, int oglCaps)
{
super(device, visualnum, 0, 0,
(oglCaps & OGLContext.CAPS_DOUBLEBUFFERED) != 0);
pConfigInfo = configInfo;
initConfig(getAData(), configInfo);
this.oglCaps = oglCaps;
context = new OGLContext(OGLRenderQueue.getInstance());
}
public Object getProxyKey() {
return this;
}
public SurfaceData createManagedSurface(int w, int h, int transparency) {
return GLXSurfaceData.createData(this, w, h,
getColorModel(transparency),
null,
OGLSurfaceData.TEXTURE);
}
public static GLXGraphicsConfig getConfig(X11GraphicsDevice device,
int visualnum)
{
if (!X11GraphicsEnvironment.isGLXAvailable()) {
return null;
}
long cfginfo = 0;
OGLRenderQueue rq = OGLRenderQueue.getInstance();
rq.lock();
try {
// getGLXConfigInfo() creates and destroys temporary
// surfaces/contexts, so we should first invalidate the current
// Java-level context and flush the queue...
OGLContext.invalidateCurrentContext();
GLXGetConfigInfo action =
new GLXGetConfigInfo(device.getScreen(), visualnum);
rq.flushAndInvokeNow(action);
cfginfo = action.getConfigInfo();
} finally {
rq.unlock();
}
if (cfginfo == 0) {
return null;
}
int oglCaps = getOGLCapabilities(cfginfo);
return new GLXGraphicsConfig(device, visualnum, cfginfo, oglCaps);
}
/**
* This is a small helper class that allows us to execute
* getGLXConfigInfo() on the queue flushing thread.
*/
private static class GLXGetConfigInfo implements Runnable {
private int screen;
private int visual;
private long cfginfo;
private GLXGetConfigInfo(int screen, int visual) {
this.screen = screen;
this.visual = visual;
}
public void run() {
cfginfo = getGLXConfigInfo(screen, visual);
}
public long getConfigInfo() {
return cfginfo;
}
}
/**
* Returns true if the provided capability bit is present for this config.
* See OGLContext.java for a list of supported capabilities.
*/
public final boolean isCapPresent(int cap) {
return ((oglCaps & cap) != 0);
}
public final long getNativeConfigInfo() {
return pConfigInfo;
}
public final OGLContext getContext() {
return context;
}
@Override
public BufferedImage createCompatibleImage(int width, int height) {
ColorModel model = new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
WritableRaster
raster = model.createCompatibleWritableRaster(width, height);
return new BufferedImage(model, raster, model.isAlphaPremultiplied(),
null);
}
@Override
public ColorModel getColorModel(int transparency) {
switch (transparency) {
case Transparency.OPAQUE:
// REMIND: once the ColorModel spec is changed, this should be
// an opaque premultiplied DCM...
return new DirectColorModel(24, 0xff0000, 0xff00, 0xff);
case Transparency.BITMASK:
return new DirectColorModel(25, 0xff0000, 0xff00, 0xff, 0x1000000);
case Transparency.TRANSLUCENT:
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
return new DirectColorModel(cs, 32,
0xff0000, 0xff00, 0xff, 0xff000000,
true, DataBuffer.TYPE_INT);
default:
return null;
}
}
public String toString() {
return ("GLXGraphicsConfig[dev="+screen+
",vis=0x"+Integer.toHexString(visual)+
"]");
}
/**
* The following methods are invoked from MToolkit or XToolkit.java and
* X11ComponentPeer.java rather than having the X11-dependent
* implementations hardcoded in those classes. This way the appropriate
* actions are taken based on the peer's GraphicsConfig, whether it is
* an X11GraphicsConfig or a GLXGraphicsConfig.
*/
/**
* Creates a new SurfaceData that will be associated with the given
* X11ComponentPeer.
*/
@Override
public SurfaceData createSurfaceData(X11ComponentPeer peer) {
return GLXSurfaceData.createData(peer);
}
/**
* Creates a new hidden-acceleration image of the given width and height
* that is associated with the target Component.
*/
@Override
public Image createAcceleratedImage(Component target,
int width, int height)
{
ColorModel model = getColorModel(Transparency.OPAQUE);
WritableRaster wr =
model.createCompatibleWritableRaster(width, height);
return new OffScreenImage(target, model, wr,
model.isAlphaPremultiplied());
}
/**
* The following methods correspond to the multibuffering methods in
* X11ComponentPeer.java...
*/
/**
* Attempts to create a GLX-based backbuffer for the given peer. If
* the requested configuration is not natively supported, an AWTException
* is thrown. Otherwise, if the backbuffer creation is successful, a
* value of 1 is returned.
*/
@Override
public long createBackBuffer(X11ComponentPeer peer,
int numBuffers, BufferCapabilities caps)
throws AWTException
{
if (numBuffers > 2) {
throw new AWTException(
"Only double or single buffering is supported");
}
BufferCapabilities configCaps = getBufferCapabilities();
if (!configCaps.isPageFlipping()) {
throw new AWTException("Page flipping is not supported");
}
if (caps.getFlipContents() == BufferCapabilities.FlipContents.PRIOR) {
throw new AWTException("FlipContents.PRIOR is not supported");
}
// non-zero return value means backbuffer creation was successful
// (checked in X11ComponentPeer.flip(), etc.)
return 1;
}
/**
* Destroys the backbuffer object represented by the given handle value.
*/
@Override
public void destroyBackBuffer(long backBuffer) {
}
/**
* Creates a VolatileImage that essentially wraps the target Component's
* backbuffer (the provided backbuffer handle is essentially ignored).
*/
@Override
public VolatileImage createBackBufferImage(Component target,
long backBuffer)
{
return new SunVolatileImage(target,
target.getWidth(), target.getHeight(),
Boolean.TRUE);
}
/**
* Performs the native GLX flip operation for the given target Component.
*/
@Override
public void flip(X11ComponentPeer peer,
Component target, VolatileImage xBackBuffer,
BufferCapabilities.FlipContents flipAction)
{
if (flipAction == BufferCapabilities.FlipContents.COPIED) {
Graphics g = peer.getGraphics();
try {
g.drawImage(xBackBuffer, 0, 0, null);
} finally {
g.dispose();
}
return;
} else if (flipAction == BufferCapabilities.FlipContents.PRIOR) {
// not supported by GLX...
return;
}
OGLSurfaceData.swapBuffers(peer.getContentWindow());
if (flipAction == BufferCapabilities.FlipContents.BACKGROUND) {
Graphics g = xBackBuffer.getGraphics();
try {
g.setColor(target.getBackground());
g.fillRect(0, 0,
xBackBuffer.getWidth(),
xBackBuffer.getHeight());
} finally {
g.dispose();
}
}
}
private static class GLXBufferCaps extends BufferCapabilities {
public GLXBufferCaps(boolean dblBuf) {
super(imageCaps, imageCaps,
dblBuf ? FlipContents.UNDEFINED : null);
}
}
@Override
public BufferCapabilities getBufferCapabilities() {
if (bufferCaps == null) {
bufferCaps = new GLXBufferCaps(isDoubleBuffered());
}
return bufferCaps;
}
private static class GLXImageCaps extends ImageCapabilities {
private GLXImageCaps() {
super(true);
}
public boolean isTrueVolatile() {
return true;
}
}
@Override
public ImageCapabilities getImageCapabilities() {
return imageCaps;
}
}