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package sun.java2d.loops;

import java.awt.Composite;
import sun.java2d.loops.GraphicsPrimitive;
import sun.java2d.SurfaceData;
import sun.java2d.pipe.Region;

ScaledBlit 1) copies rectangle of pixels from one surface to another while scaling the pixels to meet the sizes specified 2) performs compositing of colors based upon a Composite parameter precise behavior is undefined if the source surface and the destination surface are the same surface with overlapping regions of pixels
/** * ScaledBlit * 1) copies rectangle of pixels from one surface to another * while scaling the pixels to meet the sizes specified * 2) performs compositing of colors based upon a Composite * parameter * * precise behavior is undefined if the source surface * and the destination surface are the same surface * with overlapping regions of pixels */
public class ScaledBlit extends GraphicsPrimitive { public static final String methodSignature = "ScaledBlit(...)".toString(); public static final int primTypeID = makePrimTypeID(); private static RenderCache blitcache = new RenderCache(20); public static ScaledBlit locate(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { return (ScaledBlit) GraphicsPrimitiveMgr.locate(primTypeID, srctype, comptype, dsttype); } public static ScaledBlit getFromCache(SurfaceType src, CompositeType comp, SurfaceType dst) { Object o = blitcache.get(src, comp, dst); if (o != null) { return (ScaledBlit) o; } ScaledBlit blit = locate(src, comp, dst); if (blit == null) { /* System.out.println("blit loop not found for:"); System.out.println("src: "+src); System.out.println("comp: "+comp); System.out.println("dst: "+dst); */ } else { blitcache.put(src, comp, dst, blit); } return blit; } protected ScaledBlit(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(methodSignature, primTypeID, srctype, comptype, dsttype); } public ScaledBlit(long pNativePrim, SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype); } public native void Scale(SurfaceData src, SurfaceData dst, Composite comp, Region clip, int sx1, int sy1, int sx2, int sy2, double dx1, double dy1, double dx2, double dy2); static { GraphicsPrimitiveMgr.registerGeneral(new ScaledBlit(null, null, null)); } public GraphicsPrimitive makePrimitive(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { /* System.out.println("Constructing general blit for:"); System.out.println("src: "+srctype); System.out.println("comp: "+comptype); System.out.println("dst: "+dsttype); */ return null; } public GraphicsPrimitive traceWrap() { return new TraceScaledBlit(this); } private static class TraceScaledBlit extends ScaledBlit { ScaledBlit target; public TraceScaledBlit(ScaledBlit target) { super(target.getSourceType(), target.getCompositeType(), target.getDestType()); this.target = target; } public GraphicsPrimitive traceWrap() { return this; } public void Scale(SurfaceData src, SurfaceData dst, Composite comp, Region clip, int sx1, int sy1, int sx2, int sy2, double dx1, double dy1, double dx2, double dy2) { tracePrimitive(target); target.Scale(src, dst, comp, clip, sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2); } } }