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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package sun.java2d.x11;

import sun.awt.SunToolkit;
import sun.java2d.loops.GraphicsPrimitive;
import sun.java2d.loops.GraphicsPrimitiveMgr;
import sun.java2d.loops.CompositeType;
import sun.java2d.loops.SurfaceType;
import sun.java2d.loops.BlitBg;
import sun.java2d.SurfaceData;
import sun.java2d.pipe.Region;
import java.awt.Color;
import java.awt.Composite;

X11PMBlitBgLoops
This class accelerates Blits between two surfaces of types *PM.  Since
the onscreen surface is of that type and some of the offscreen surfaces
may be of that type (if they were created via X11OffScreenImage), then
this type of BlitBg will accelerated double-buffer copies between those
two surfaces.
/**
 * X11PMBlitBgLoops
 *
 * This class accelerates Blits between two surfaces of types *PM.  Since
 * the onscreen surface is of that type and some of the offscreen surfaces
 * may be of that type (if they were created via X11OffScreenImage), then
 * this type of BlitBg will accelerated double-buffer copies between those
 * two surfaces.
*/
public class X11PMBlitBgLoops extends BlitBg {

    public static void register()
    {
        GraphicsPrimitive[] primitives = {
            new X11PMBlitBgLoops(X11SurfaceData.IntBgrX11_BM,
                                 X11SurfaceData.IntBgrX11),
            new X11PMBlitBgLoops(X11SurfaceData.IntRgbX11_BM,
                                 X11SurfaceData.IntRgbX11),
            new X11PMBlitBgLoops(X11SurfaceData.ThreeByteBgrX11_BM,
                                 X11SurfaceData.ThreeByteBgrX11),
            new X11PMBlitBgLoops(X11SurfaceData.ThreeByteRgbX11_BM,
                                 X11SurfaceData.ThreeByteRgbX11),
            new X11PMBlitBgLoops(X11SurfaceData.ByteIndexedX11_BM,
                                 X11SurfaceData.ByteIndexedOpaqueX11),
            new X11PMBlitBgLoops(X11SurfaceData.ByteGrayX11_BM,
                                 X11SurfaceData.ByteGrayX11),
            new X11PMBlitBgLoops(X11SurfaceData.Index8GrayX11_BM,
                                 X11SurfaceData.Index8GrayX11),
            new X11PMBlitBgLoops(X11SurfaceData.UShort555RgbX11_BM,
                                 X11SurfaceData.UShort555RgbX11),
            new X11PMBlitBgLoops(X11SurfaceData.UShort565RgbX11_BM,
                                 X11SurfaceData.UShort565RgbX11),
            new X11PMBlitBgLoops(X11SurfaceData.UShortIndexedX11_BM,
                                 X11SurfaceData.UShortIndexedX11),
            new X11PMBlitBgLoops(X11SurfaceData.IntRgbX11_BM,
                                 X11SurfaceData.IntArgbPreX11),
            new X11PMBlitBgLoops(X11SurfaceData.IntBgrX11_BM,
                                 X11SurfaceData.FourByteAbgrPreX11),
        };
        GraphicsPrimitiveMgr.register(primitives);
    }

    public X11PMBlitBgLoops(SurfaceType srcType, SurfaceType dstType)
    {
        super(srcType, CompositeType.SrcNoEa, dstType);
    }

    @Override
    public void BlitBg(SurfaceData src, SurfaceData dst,
                       Composite comp, Region clip, int bgColor,
                       int sx, int sy,
                       int dx, int dy,
                       int w, int h)
    {
        SunToolkit.awtLock();
        try {
            int pixel = dst.pixelFor(bgColor);
            X11SurfaceData x11sd = (X11SurfaceData)dst;
            // use false for needExposures since we clip to the pixmap
            long xgc = x11sd.getBlitGC(clip, false);
            nativeBlitBg(src.getNativeOps(), dst.getNativeOps(),
                         xgc, pixel,
                         sx, sy, dx, dy, w, h);
        } finally {
            SunToolkit.awtUnlock();
        }
    }

    
This native method is where all of the work happens in the
accelerated Blit.
/**
     * This native method is where all of the work happens in the
     * accelerated Blit.
     */
    private native void nativeBlitBg(long srcData, long dstData,
                                     long xgc, int pixel,
                                     int sx, int sy,
                                     int dx, int dy,
                                     int w, int h);
}