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/*
* 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);
}
}
}
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