/*
* Copyright (c) 2001, 2004, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package sun.java2d.loops;
import java.awt.Composite;
import java.lang.ref.WeakReference;
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
*/
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);
}
}
}