--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/java2d/loops/Blit.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,332 @@
+/*
+ * Copyright 1999-2004 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.java2d.loops;
+
+import java.awt.Composite;
+import java.awt.CompositeContext;
+import java.awt.RenderingHints;
+import java.awt.image.ColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.lang.ref.WeakReference;
+import sun.java2d.loops.GraphicsPrimitive;
+import sun.java2d.SurfaceData;
+import sun.java2d.pipe.Region;
+import sun.java2d.pipe.SpanIterator;
+
+/**
+ * Blit
+ * 1) copies rectangle of pixels 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 Blit extends GraphicsPrimitive
+{
+ public static final String methodSignature = "Blit(...)".toString();
+
+ public static final int primTypeID = makePrimTypeID();
+
+ private static RenderCache blitcache = new RenderCache(20);
+
+ public static Blit locate(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ return (Blit)
+ GraphicsPrimitiveMgr.locate(primTypeID,
+ srctype, comptype, dsttype);
+ }
+
+ public static Blit getFromCache(SurfaceType src,
+ CompositeType comp,
+ SurfaceType dst)
+ {
+ Object o = blitcache.get(src, comp, dst);
+ if (o != null) {
+ return (Blit) o;
+ }
+
+ Blit 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 Blit(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(methodSignature, primTypeID, srctype, comptype, dsttype);
+ }
+
+ public Blit(long pNativePrim,
+ SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype);
+ }
+
+ /**
+ * All Blit implementors must have this invoker method
+ */
+ public native void Blit(SurfaceData src, SurfaceData dst,
+ Composite comp, Region clip,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height);
+
+ static {
+ GraphicsPrimitiveMgr.registerGeneral(new Blit(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);
+ */
+
+ if (comptype.isDerivedFrom(CompositeType.Xor)) {
+ GeneralXorBlit gxb = new GeneralXorBlit(srctype,
+ comptype,
+ dsttype);
+ setupGeneralBinaryOp(gxb);
+ return gxb;
+ } else if (comptype.isDerivedFrom(CompositeType.AnyAlpha)) {
+ return new GeneralMaskBlit(srctype, comptype, dsttype);
+ } else {
+ return AnyBlit.instance;
+ }
+ }
+
+ private static class AnyBlit extends Blit {
+ public static AnyBlit instance = new AnyBlit();
+
+ public AnyBlit() {
+ super(SurfaceType.Any, CompositeType.Any, SurfaceType.Any);
+ }
+
+ public void Blit(SurfaceData srcData,
+ SurfaceData dstData,
+ Composite comp,
+ Region clip,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height)
+ {
+ ColorModel srcCM = srcData.getColorModel();
+ ColorModel dstCM = dstData.getColorModel();
+ // REMIND: Should get RenderingHints from sg2d
+ CompositeContext ctx = comp.createContext(srcCM, dstCM,
+ new RenderingHints(null));
+ Raster srcRas = srcData.getRaster(srcx, srcy, width, height);
+ WritableRaster dstRas =
+ (WritableRaster) dstData.getRaster(dstx, dsty, width, height);
+
+ if (clip == null) {
+ clip = Region.getInstanceXYWH(dstx, dsty, width, height);
+ }
+ int span[] = {dstx, dsty, dstx+width, dsty+height};
+ SpanIterator si = clip.getSpanIterator(span);
+ srcx -= dstx;
+ srcy -= dsty;
+ while (si.nextSpan(span)) {
+ int w = span[2] - span[0];
+ int h = span[3] - span[1];
+ srcRas = srcRas.createChild(srcx + span[0], srcy + span[1],
+ w, h, 0, 0, null);
+ dstRas = dstRas.createWritableChild(span[0], span[1],
+ w, h, 0, 0, null);
+ ctx.compose(srcRas, dstRas, dstRas);
+ }
+ ctx.dispose();
+ }
+ }
+
+ private static class GeneralMaskBlit extends Blit {
+ MaskBlit performop;
+
+ public GeneralMaskBlit(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(srctype, comptype, dsttype);
+ performop = MaskBlit.locate(srctype, comptype, dsttype);
+ }
+
+ public void Blit(SurfaceData srcData,
+ SurfaceData dstData,
+ Composite comp,
+ Region clip,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height)
+ {
+ performop.MaskBlit(srcData, dstData, comp, clip,
+ srcx, srcy, dstx, dsty,
+ width, height,
+ null, 0, 0);
+ }
+ }
+
+ private static class GeneralXorBlit
+ extends Blit
+ implements GeneralBinaryOp
+ {
+ Blit convertsrc;
+ Blit convertdst;
+ Blit performop;
+ Blit convertresult;
+
+ WeakReference srcTmp;
+ WeakReference dstTmp;
+
+ public GeneralXorBlit(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(srctype, comptype, dsttype);
+ }
+
+ public void setPrimitives(Blit srcconverter,
+ Blit dstconverter,
+ GraphicsPrimitive genericop,
+ Blit resconverter)
+ {
+ this.convertsrc = srcconverter;
+ this.convertdst = dstconverter;
+ this.performop = (Blit) genericop;
+ this.convertresult = resconverter;
+ }
+
+ public synchronized void Blit(SurfaceData srcData,
+ SurfaceData dstData,
+ Composite comp,
+ Region clip,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height)
+ {
+ SurfaceData src, dst;
+ Region opclip;
+ int sx, sy, dx, dy;
+
+ if (convertsrc == null) {
+ src = srcData;
+ sx = srcx;
+ sy = srcy;
+ } else {
+ SurfaceData cachedSrc = null;
+ if (srcTmp != null) {
+ cachedSrc = (SurfaceData) srcTmp.get();
+ }
+ src = convertFrom(convertsrc, srcData, srcx, srcy,
+ width, height, cachedSrc);
+ sx = 0;
+ sy = 0;
+ if (src != cachedSrc) {
+ srcTmp = new WeakReference(src);
+ }
+ }
+
+ if (convertdst == null) {
+ dst = dstData;
+ dx = dstx;
+ dy = dsty;
+ opclip = clip;
+ } else {
+ // assert: convertresult != null
+ SurfaceData cachedDst = null;
+ if (dstTmp != null) {
+ cachedDst = (SurfaceData) dstTmp.get();
+ }
+ dst = convertFrom(convertdst, dstData, dstx, dsty,
+ width, height, cachedDst);
+ dx = 0;
+ dy = 0;
+ opclip = null;
+ if (dst != cachedDst) {
+ dstTmp = new WeakReference(dst);
+ }
+ }
+
+ performop.Blit(src, dst, comp, opclip,
+ sx, sy, dx, dy,
+ width, height);
+
+ if (convertresult != null) {
+ // assert: convertdst != null
+ convertTo(convertresult, dst, dstData, clip,
+ dstx, dsty, width, height);
+ }
+ }
+ }
+
+ public GraphicsPrimitive traceWrap() {
+ return new TraceBlit(this);
+ }
+
+ private static class TraceBlit extends Blit {
+ Blit target;
+
+ public TraceBlit(Blit target) {
+ super(target.getSourceType(),
+ target.getCompositeType(),
+ target.getDestType());
+ this.target = target;
+ }
+
+ public GraphicsPrimitive traceWrap() {
+ return this;
+ }
+
+ public void Blit(SurfaceData src, SurfaceData dst,
+ Composite comp, Region clip,
+ int srcx, int srcy, int dstx, int dsty,
+ int width, int height)
+ {
+ tracePrimitive(target);
+ target.Blit(src, dst, comp, clip,
+ srcx, srcy, dstx, dsty, width, height);
+ }
+ }
+}