Java AccelGraphicsConfig类代码示例

import sun.java2d.pipe.hw.AccelGraphicsConfig; //导入依赖的package包/类
/**
 * Creates an instance of the painter for particular peer.
 */
public static TranslucentWindowPainter createInstance(WWindowPeer peer) {
    GraphicsConfiguration gc = peer.getGraphicsConfiguration();
    if (!forceSW && gc instanceof AccelGraphicsConfig) {
        String gcName = gc.getClass().getSimpleName();
        AccelGraphicsConfig agc = (AccelGraphicsConfig)gc;
        // this is a heuristic to check that we have a pcix board
        // (those have higher transfer rate from gpu to cpu)
        if ((agc.getContextCapabilities().getCaps() & CAPS_PS30) != 0 ||
            forceOpt)
        {
            // we check for name to avoid loading classes unnecessarily if
            // a pipeline isn't enabled
            if (gcName.startsWith("D3D")) {
                return new VIOptD3DWindowPainter(peer);
            } else if (forceOpt && gcName.startsWith("WGL")) {
                // on some boards (namely, ATI, even on pcix bus) ogl is
                // very slow reading pixels back so for now it is disabled
                // unless forced
                return new VIOptWGLWindowPainter(peer);
            }
        }
    }
    return new BIWindowPainter(peer);
}
 

import sun.java2d.pipe.hw.AccelGraphicsConfig; //导入依赖的package包/类
@Override
protected Image getBackBuffer(boolean clear) {
    int w = window.getWidth();
    int h = window.getHeight();
    GraphicsConfiguration gc = peer.getGraphicsConfiguration();

    if (viBB == null || viBB.getWidth() != w || viBB.getHeight() != h ||
        viBB.validate(gc) == IMAGE_INCOMPATIBLE)
    {
        flush();

        if (gc instanceof AccelGraphicsConfig) {
            AccelGraphicsConfig agc = ((AccelGraphicsConfig)gc);
            viBB = agc.createCompatibleVolatileImage(w, h,
                                                     TRANSLUCENT,
                                                     RT_PLAIN);
        }
        if (viBB == null) {
            viBB = gc.createCompatibleVolatileImage(w, h, TRANSLUCENT);
        }
        viBB.validate(gc);
    }

    return clear ? clearImage(viBB) : viBB;
}
 

import sun.java2d.pipe.hw.AccelGraphicsConfig; //导入依赖的package包/类
private static void testContext(final AccelGraphicsConfig agc) {
    BufferedContext c = agc.getContext();
    final AccelDeviceEventListener l = new AccelDeviceEventListener() {
        public void onDeviceDispose() {
            System.out.println("onDeviceDispose invoked");
            agc.removeDeviceEventListener(this);
        }
        public void onDeviceReset() {
            System.out.println("onDeviceReset invoked");
        }
    };
    agc.addDeviceEventListener(l);

    RenderQueue rq = c.getRenderQueue();
    rq.lock();
    try {
        c.saveState();
        rq.flushNow();
        c.restoreState();
        rq.flushNow();
        System.out.println("Passed: Save/Restore");
    } finally {
        rq.unlock();
    }
}
 

import sun.java2d.pipe.hw.AccelGraphicsConfig; //导入依赖的package包/类
private static void printAGC(AccelGraphicsConfig agc) {
    System.out.println("Accelerated Graphics Config: " + agc);
    System.out.println("Capabilities:");
    System.out.printf("AGC caps: 0x%x\n",
                      agc.getContextCapabilities().getCaps());
    System.out.println(agc.getContextCapabilities());
}
 

import sun.java2d.pipe.hw.AccelGraphicsConfig; //导入依赖的package包/类
private static void testGC(GraphicsConfiguration gc) {
    if (!(gc instanceof AccelGraphicsConfig)) {
        System.out.println("Test passed: no hw accelerated configs found.");
        return;
    }
    System.out.println("AccelGraphicsConfig exists, testing.");
    AccelGraphicsConfig agc = (AccelGraphicsConfig) gc;
    printAGC(agc);

    testContext(agc);

    VolatileImage vi = gc.createCompatibleVolatileImage(10, 10);
    vi.validate(gc);
    if (vi instanceof DestSurfaceProvider) {
        System.out.println("Passed: VI is DestSurfaceProvider");
        Surface s = ((DestSurfaceProvider) vi).getDestSurface();
        if (s instanceof AccelSurface) {
            System.out.println("Passed: Obtained Accel Surface");
            printSurface((AccelSurface) s);
        }
        Graphics g = vi.getGraphics();
        if (g instanceof DestSurfaceProvider) {
            System.out.println("Passed: VI graphics is " +
                               "DestSurfaceProvider");
            printSurface(((DestSurfaceProvider) g).getDestSurface());
        }
    } else {
        System.out.println("VI is not DestSurfaceProvider");
    }
    testVICreation(agc, CAPS_RT_TEXTURE_ALPHA, TRANSLUCENT, RT_TEXTURE);
    testVICreation(agc, CAPS_RT_TEXTURE_OPAQUE, OPAQUE, RT_TEXTURE);
    testVICreation(agc, CAPS_RT_PLAIN_ALPHA, TRANSLUCENT, RT_PLAIN);
    testVICreation(agc, agc.getContextCapabilities().getCaps(), OPAQUE,
                   TEXTURE);
    testForNPEDuringCreation(agc);
}