/*
* 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 ae.sun.java2d.loops;
import ae.java.awt.Composite;
import ae.java.awt.CompositeContext;
import ae.java.awt.RenderingHints;
import ae.java.awt.image.ColorModel;
import ae.java.awt.image.Raster;
import ae.java.awt.image.WritableRaster;
import ae.sun.java2d.SurfaceData;
import ae.sun.java2d.loops.GraphicsPrimitive;
import ae.sun.java2d.pipe.Region;
import ae.sun.java2d.pipe.SpanIterator;
import java.lang.ref.WeakReference;
/**
* 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);
}
}
}