jdk/test/sun/java2d/pipe/hw/RSLContextInvalidationTest/RSLContextInvalidationTest.java

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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 6764257
 * @summary Tests that the color is reset properly after save/restore context
 * @author Dmitri.Trembovetski@sun.com: area=Graphics
 * @modules java.desktop/sun.java2d
 *          java.desktop/sun.java2d.pipe
 *          java.desktop/sun.java2d.pipe.hw
 * @compile -XDignore.symbol.file=true RSLContextInvalidationTest.java
 * @run main/othervm RSLContextInvalidationTest
 * @run main/othervm -Dsun.java2d.noddraw=true RSLContextInvalidationTest
 * @run main/othervm -Dsun.java2d.opengl=True RSLContextInvalidationTest
 */

import java.awt.Color;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;
import sun.java2d.DestSurfaceProvider;
import sun.java2d.Surface;
import sun.java2d.pipe.RenderQueue;
import sun.java2d.pipe.hw.*;

public class RSLContextInvalidationTest {

    public static void main(String[] args) {
        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        GraphicsConfiguration gc = gd.getDefaultConfiguration();
        VolatileImage vi = gc.createCompatibleVolatileImage(100, 100);
        vi.validate(gc);
        VolatileImage vi1 = gc.createCompatibleVolatileImage(100, 100);
        vi1.validate(gc);

        if (!(vi instanceof DestSurfaceProvider)) {
            System.out.println("Test considered PASSED: no HW acceleration");
            return;
        }

        DestSurfaceProvider p = (DestSurfaceProvider)vi;
        Surface s = p.getDestSurface();
        if (!(s instanceof AccelSurface)) {
            System.out.println("Test considered PASSED: no HW acceleration");
            return;
        }
        AccelSurface dst = (AccelSurface)s;

        Graphics g = vi.createGraphics();
        g.drawImage(vi1, 95, 95, null);
        g.setColor(Color.red);
        g.fillRect(0, 0, 100, 100);
        g.setColor(Color.black);
        g.fillRect(0, 0, 100, 100);
        // after this the validated context color is black

        RenderQueue rq = dst.getContext().getRenderQueue();
        rq.lock();
        try {
            dst.getContext().saveState();
            dst.getContext().restoreState();
        } finally {
            rq.unlock();
        }

        // this will cause ResetPaint (it will set color to extended EA=ff,
        // which is ffffffff==Color.white)
        g.drawImage(vi1, 95, 95, null);

        // now try filling with black again, but it will come up as white
        // because this fill rect won't validate the color properly
        g.setColor(Color.black);
        g.fillRect(0, 0, 100, 100);

        BufferedImage bi = vi.getSnapshot();
        if (bi.getRGB(50, 50) != Color.black.getRGB()) {
            throw new RuntimeException("Test FAILED: found color="+
                Integer.toHexString(bi.getRGB(50, 50))+" instead of "+
                Integer.toHexString(Color.black.getRGB()));
        }

        System.out.println("Test PASSED.");
    }
}