--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/java2d/loops/BlitBg.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,215 @@
+/*
+ * 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.Font;
+import java.awt.Color;
+import java.awt.Composite;
+import java.awt.AlphaComposite;
+import java.awt.Transparency;
+import java.awt.image.ColorModel;
+import java.awt.image.WritableRaster;
+import java.awt.image.BufferedImage;
+import sun.awt.image.BufImgSurfaceData;
+import sun.java2d.loops.GraphicsPrimitive;
+import sun.java2d.SurfaceData;
+import sun.java2d.SunGraphics2D;
+import sun.java2d.pipe.Region;
+
+/**
+ * BlitBg
+ * 1) copies rectangle of pixels from one surface to another
+ * 2) performs compositing of colors based upon a Composite
+ * parameter
+ * 3) assumes that non-opaque pixels are to be blended with
+ * the indicated Bg color before compositing with the
+ * destination
+ *
+ * precise behavior is undefined if the source surface
+ * and the destination surface are the same surface
+ * with overlapping regions of pixels
+ */
+public class BlitBg extends GraphicsPrimitive
+{
+ public static final String methodSignature = "BlitBg(...)".toString();
+
+ public static final int primTypeID = makePrimTypeID();
+
+ private static RenderCache blitcache = new RenderCache(20);
+
+ public static BlitBg locate(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ return (BlitBg)
+ GraphicsPrimitiveMgr.locate(primTypeID,
+ srctype, comptype, dsttype);
+ }
+
+ public static BlitBg getFromCache(SurfaceType src,
+ CompositeType comp,
+ SurfaceType dst)
+ {
+ Object o = blitcache.get(src, comp, dst);
+ if (o != null) {
+ return (BlitBg) o;
+ }
+ BlitBg blit = locate(src, comp, dst);
+ if (blit == null) {
+ System.out.println("blitbg 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 BlitBg(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(methodSignature, primTypeID, srctype, comptype, dsttype);
+ }
+
+ public BlitBg(long pNativePrim,
+ SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype);
+ }
+
+ /**
+ * All BlitBg implementors must have this invoker method
+ */
+ public native void BlitBg(SurfaceData src, SurfaceData dst,
+ Composite comp, Region clip,
+ Color bgColor,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height);
+
+ static {
+ GraphicsPrimitiveMgr.registerGeneral(new BlitBg(null, null, null));
+ }
+
+ public GraphicsPrimitive makePrimitive(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ /*
+ System.out.println("Constructing general blitbg for:");
+ System.out.println("src: "+srctype);
+ System.out.println("comp: "+comptype);
+ System.out.println("dst: "+dsttype);
+ */
+ return new General(srctype, comptype, dsttype);
+ }
+
+ private static class General extends BlitBg {
+ CompositeType compositeType;
+
+ public General(SurfaceType srctype,
+ CompositeType comptype,
+ SurfaceType dsttype)
+ {
+ super(srctype, comptype, dsttype);
+ compositeType = comptype;
+ }
+
+ public void BlitBg(SurfaceData srcData,
+ SurfaceData dstData,
+ Composite comp,
+ Region clip,
+ Color bgColor,
+ int srcx, int srcy,
+ int dstx, int dsty,
+ int width, int height)
+ {
+ ColorModel dstModel = dstData.getColorModel();
+ if (!dstModel.hasAlpha() &&
+ bgColor.getTransparency() != Transparency.OPAQUE)
+ {
+ dstModel = ColorModel.getRGBdefault();
+ }
+ WritableRaster wr =
+ dstModel.createCompatibleWritableRaster(width, height);
+ boolean isPremult = dstModel.isAlphaPremultiplied();
+ BufferedImage bimg =
+ new BufferedImage(dstModel, wr, isPremult, null);
+ SurfaceData tmpData = BufImgSurfaceData.createData(bimg);
+ SunGraphics2D sg2d = new SunGraphics2D(tmpData, bgColor, bgColor,
+ defaultFont);
+ FillRect fillop = FillRect.locate(SurfaceType.AnyColor,
+ CompositeType.SrcNoEa,
+ tmpData.getSurfaceType());
+ Blit combineop = Blit.getFromCache(srcData.getSurfaceType(),
+ CompositeType.SrcOverNoEa,
+ tmpData.getSurfaceType());
+ Blit blitop = Blit.getFromCache(tmpData.getSurfaceType(), compositeType,
+ dstData.getSurfaceType());
+ fillop.FillRect(sg2d, tmpData, 0, 0, width, height);
+ combineop.Blit(srcData, tmpData, AlphaComposite.SrcOver, null,
+ srcx, srcy, 0, 0, width, height);
+ blitop.Blit(tmpData, dstData, comp, clip,
+ 0, 0, dstx, dsty, width, height);
+ }
+
+ private static Font defaultFont = new Font("Dialog", Font.PLAIN, 12);
+ }
+
+ public GraphicsPrimitive traceWrap() {
+ return new TraceBlitBg(this);
+ }
+
+ private static class TraceBlitBg extends BlitBg {
+ BlitBg target;
+
+ public TraceBlitBg(BlitBg target) {
+ super(target.getSourceType(),
+ target.getCompositeType(),
+ target.getDestType());
+ this.target = target;
+ }
+
+ public GraphicsPrimitive traceWrap() {
+ return this;
+ }
+
+ public void BlitBg(SurfaceData src, SurfaceData dst,
+ Composite comp, Region clip,
+ Color bgColor,
+ int srcx, int srcy, int dstx, int dsty,
+ int width, int height)
+ {
+ tracePrimitive(target);
+ target.BlitBg(src, dst, comp, clip, bgColor,
+ srcx, srcy, dstx, dsty, width, height);
+ }
+ }
+}