Java example source code file (D3DGraphicsConfig.java)

This example Java source code file (D3DGraphicsConfig.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, awtexception, buffercapabilities, color, component, contextcapabilities, d3dbuffercaps, d3dgraphicsconfig, d3dgraphicsdevice, d3dimagecaps, d3dsurfacedata, directcolormodel, image, imagecapabilities, java2d, override, sunvolatileimage, volatileimage, window

The D3DGraphicsConfig.java Java example source code

/*
 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.java2d.d3d;

import java.awt.AWTException;
import java.awt.BufferCapabilities;
import java.awt.BufferCapabilities.FlipContents;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.ImageCapabilities;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.ColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.DirectColorModel;
import java.awt.image.VolatileImage;
import sun.awt.Win32GraphicsConfig;
import sun.awt.image.SunVolatileImage;
import sun.awt.image.SurfaceManager;
import sun.awt.windows.WComponentPeer;
import sun.java2d.Surface;
import sun.java2d.SurfaceData;
import sun.java2d.pipe.hw.AccelDeviceEventNotifier;
import sun.java2d.pipe.hw.AccelTypedVolatileImage;
import sun.java2d.pipe.hw.AccelGraphicsConfig;
import sun.java2d.pipe.hw.AccelSurface;
import sun.java2d.pipe.hw.ContextCapabilities;
import static sun.java2d.pipe.hw.AccelSurface.*;
import static sun.java2d.d3d.D3DContext.D3DContextCaps.*;
import sun.java2d.pipe.hw.AccelDeviceEventListener;

public class D3DGraphicsConfig
    extends Win32GraphicsConfig
    implements AccelGraphicsConfig
{
    private static ImageCapabilities imageCaps = new D3DImageCaps();

    private BufferCapabilities bufferCaps;
    private D3DGraphicsDevice device;

    protected D3DGraphicsConfig(D3DGraphicsDevice device) {
        super(device, 0);
        this.device = device;
    }

    public SurfaceData createManagedSurface(int w, int h, int transparency) {
        return D3DSurfaceData.createData(this, w, h,
                                         getColorModel(transparency),
                                         null,
                                         D3DSurfaceData.TEXTURE);
    }

    @Override
    public synchronized void displayChanged() {
        super.displayChanged();
        // the context could hold a reference to a D3DSurfaceData, which in
        // turn has a reference back to this D3DGraphicsConfig, so in order
        // for this instance to be disposed we need to break the connection
        D3DRenderQueue rq = D3DRenderQueue.getInstance();
        rq.lock();
        try {
            D3DContext.invalidateCurrentContext();
        } finally {
            rq.unlock();
        }
    }

    @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;
        }
    }

    @Override
    public String toString() {
        return ("D3DGraphicsConfig[dev="+screen+",pixfmt="+visual+"]");
    }

    /**
     * The following methods are invoked from WComponentPeer.java rather
     * than having the Win32-dependent implementations hardcoded in that
     * class.  This way the appropriate actions are taken based on the peer's
     * GraphicsConfig, whether it is a Win32GraphicsConfig or a
     * D3DGraphicsConfig.
     */

    /**
     * Creates a new SurfaceData that will be associated with the given
     * WComponentPeer. D3D9 doesn't allow rendering to the screen,
     * so a GDI surface will be returned.
     */
    @Override
    public SurfaceData createSurfaceData(WComponentPeer peer,
                                         int numBackBuffers)
    {
        return super.createSurfaceData(peer, numBackBuffers);
    }

    /**
     * The following methods correspond to the multibuffering methods in
     * WComponentPeer.java...
     */

    /**
     * Checks that the requested configuration is natively supported; if not,
     * an AWTException is thrown.
     */
    @Override
    public void assertOperationSupported(Component target,
                                         int numBuffers,
                                         BufferCapabilities caps)
        throws AWTException
    {
        if (numBuffers < 2 || numBuffers > 4) {
            throw new AWTException("Only 2-4 buffers supported");
        }
        if (caps.getFlipContents() == BufferCapabilities.FlipContents.COPIED &&
            numBuffers != 2)
        {
            throw new AWTException("FlipContents.COPIED is only" +
                                   "supported for 2 buffers");
        }
    }

    /**
     * Creates a D3D-based backbuffer for the given peer and returns the
     * image wrapper.
     */
    @Override
    public VolatileImage createBackBuffer(WComponentPeer peer) {
        Component target = (Component)peer.getTarget();
        // it is possible for the component to have size 0x0, adjust it to
        // be at least 1x1 to avoid IAE
        int w = Math.max(1, target.getWidth());
        int h = Math.max(1, target.getHeight());
        return new SunVolatileImage(target, w, h, Boolean.TRUE);
    }

    /**
     * Performs the native D3D flip operation for the given target Component.
     */
    @Override
    public void flip(WComponentPeer peer,
                     Component target, VolatileImage backBuffer,
                     int x1, int y1, int x2, int y2,
                     BufferCapabilities.FlipContents flipAction)
    {
        // REMIND: we should actually get a surface data for the
        // backBuffer's VI
        SurfaceManager d3dvsm =
            SurfaceManager.getManager(backBuffer);
        SurfaceData sd = d3dvsm.getPrimarySurfaceData();
        if (sd instanceof D3DSurfaceData) {
            D3DSurfaceData d3dsd = (D3DSurfaceData)sd;
            D3DSurfaceData.swapBuffers(d3dsd, x1, y1, x2, y2);
        } else {
            // the surface was likely lost could not have been restored
            Graphics g = peer.getGraphics();
            try {
                g.drawImage(backBuffer,
                            x1, y1, x2, y2,
                            x1, y1, x2, y2,
                            null);
            } finally {
                g.dispose();
            }
        }

        if (flipAction == BufferCapabilities.FlipContents.BACKGROUND) {
            Graphics g = backBuffer.getGraphics();
            try {
                g.setColor(target.getBackground());
                g.fillRect(0, 0,
                           backBuffer.getWidth(),
                           backBuffer.getHeight());
            } finally {
                g.dispose();
            }
        }
    }

    private static class D3DBufferCaps extends BufferCapabilities {
        public D3DBufferCaps() {
            // REMIND: should we indicate that the front-buffer
            // (the on-screen rendering) is not accelerated?
            super(imageCaps, imageCaps, FlipContents.UNDEFINED);
        }
        @Override
        public boolean isMultiBufferAvailable() {
            return true;
        }

    }

    @Override
    public BufferCapabilities getBufferCapabilities() {
        if (bufferCaps == null) {
            bufferCaps = new D3DBufferCaps();
        }
        return bufferCaps;
    }

    private static class D3DImageCaps extends ImageCapabilities {
        private D3DImageCaps() {
            super(true);
        }
        @Override
        public boolean isTrueVolatile() {
            return true;
        }
    }

    @Override
    public ImageCapabilities getImageCapabilities() {
        return imageCaps;
    }

    D3DGraphicsDevice getD3DDevice() {
        return device;
    }

    /**
     * {@inheritDoc}
     *
     * @see sun.java2d.pipe.hw.BufferedContextProvider#getContext
     */
    @Override
    public D3DContext getContext() {
        return device.getContext();
    }

    /**
     * {@inheritDoc}
     *
     * @see sun.java2d.pipe.hw.AccelGraphicsConfig#createCompatibleVolatileImage
     */
    @Override
    public VolatileImage
        createCompatibleVolatileImage(int width, int height,
                                      int transparency, int type)
    {
        if (type == FLIP_BACKBUFFER || type == WINDOW || type == UNDEFINED ||
            transparency == Transparency.BITMASK)
        {
            return null;
        }
        boolean isOpaque = transparency == Transparency.OPAQUE;
        if (type == RT_TEXTURE) {
            int cap = isOpaque ? CAPS_RT_TEXTURE_OPAQUE : CAPS_RT_TEXTURE_ALPHA;
            if (!device.isCapPresent(cap)) {
                return null;
            }
        } else if (type == RT_PLAIN) {
            if (!isOpaque && !device.isCapPresent(CAPS_RT_PLAIN_ALPHA)) {
                return null;
            }
        }

        SunVolatileImage vi = new AccelTypedVolatileImage(this, width, height,
                                                          transparency, type);
        Surface sd = vi.getDestSurface();
        if (!(sd instanceof AccelSurface) ||
            ((AccelSurface)sd).getType() != type)
        {
            vi.flush();
            vi = null;
        }

        return vi;
    }

    /**
     * {@inheritDoc}
     *
     * @see sun.java2d.pipe.hw.AccelGraphicsConfig#getContextCapabilities
     */
    @Override
    public ContextCapabilities getContextCapabilities() {
        return device.getContextCapabilities();
    }

    @Override
    public void addDeviceEventListener(AccelDeviceEventListener l) {
        AccelDeviceEventNotifier.addListener(l, device.getScreen());
    }

    @Override
    public void removeDeviceEventListener(AccelDeviceEventListener l) {
        AccelDeviceEventNotifier.removeListener(l);
    }
}