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package sun.java2d.loops;

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

TransformBlit 1) applies an AffineTransform to a rectangle of pixels while copying from one surface to another 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
/** * TransformBlit * 1) applies an AffineTransform to a rectangle of pixels while copying * from one surface to another * 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 TransformBlit extends GraphicsPrimitive { public static final String methodSignature = "TransformBlit(...)".toString(); public static final int primTypeID = makePrimTypeID(); private static RenderCache blitcache = new RenderCache(10); public static TransformBlit locate(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { return (TransformBlit) GraphicsPrimitiveMgr.locate(primTypeID, srctype, comptype, dsttype); } public static TransformBlit getFromCache(SurfaceType src, CompositeType comp, SurfaceType dst) { Object o = blitcache.get(src, comp, dst); if (o != null) { return (TransformBlit) o; } TransformBlit 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 TransformBlit(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(methodSignature, primTypeID, srctype, comptype, dsttype); } public TransformBlit(long pNativePrim, SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype); } public native void Transform(SurfaceData src, SurfaceData dst, Composite comp, Region clip, AffineTransform at, int hint, int srcx, int srcy, int dstx, int dsty, int width, int height); // REMIND: do we have a general loop? static { GraphicsPrimitiveMgr.registerGeneral(new TransformBlit(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 TraceTransformBlit(this); } private static class TraceTransformBlit extends TransformBlit { TransformBlit target; public TraceTransformBlit(TransformBlit target) { super(target.getSourceType(), target.getCompositeType(), target.getDestType()); this.target = target; } public GraphicsPrimitive traceWrap() { return this; } public void Transform(SurfaceData src, SurfaceData dst, Composite comp, Region clip, AffineTransform at, int hint, int srcx, int srcy, int dstx, int dsty, int width, int height) { tracePrimitive(target); target.Transform(src, dst, comp, clip, at, hint, srcx, srcy, dstx, dsty, width, height); } } }