/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Igor V. Stolyarov
* Created on 10.11.2005
*
*/
package org.apache.harmony.awt.gl;
import org.apache.harmony.awt.gl.color.LUTColorConverter;
import org.apache.harmony.awt.gl.image.DataBufferListener;
import org.apache.harmony.awt.internal.nls.Messages;
import com.google.code.appengine.awt.Rectangle;
import com.google.code.appengine.awt.color.ColorSpace;
import com.google.code.appengine.awt.image.ColorModel;
import com.google.code.appengine.awt.image.DataBuffer;
import com.google.code.appengine.awt.image.WritableRaster;
/**
* This class represent Surface for different types of Images (BufferedImage,
* OffscreenImage and so on)
*/
public class ImageSurface extends Surface implements DataBufferListener {
int surfaceType;
int csType;
ColorModel cm;
WritableRaster raster;
Object data;
boolean needToRefresh = true;
boolean dataTaken = false;
AwtImageBackdoorAccessor ba = AwtImageBackdoorAccessor.getInstance();
public ImageSurface(ColorModel cm, WritableRaster raster){
this(cm, raster, Surface.getType(cm, raster));
}
public ImageSurface(ColorModel cm, WritableRaster raster, int type){
if (!cm.isCompatibleRaster(raster)) {
// awt.4D=The raster is incompatible with this ColorModel
throw new IllegalArgumentException(Messages.getString("awt.4D")); //$NON-NLS-1$
}
this.cm = cm;
this.raster = raster;
surfaceType = type;
DataBuffer db = raster.getDataBuffer();
data = ba.getData(db);
ba.addDataBufferListener(db, this);
ColorSpace cs = cm.getColorSpace();
transparency = cm.getTransparency();
width = raster.getWidth();
height = raster.getHeight();
addDirtyRegion(new Rectangle(0, 0, width, height));
// For the moment we can build natively only images which have
// sRGB, Linear_RGB, Linear_Gray Color Space and type different
// from BufferedImage.TYPE_CUSTOM
if(cs == LUTColorConverter.sRGB_CS){
csType = sRGB_CS;
}else if(cs == LUTColorConverter.LINEAR_RGB_CS){
csType = Linear_RGB_CS;
}else if(cs == LUTColorConverter.LINEAR_GRAY_CS){
csType = Linear_Gray_CS;
}else{
csType = Custom_CS;
}
}
@Override
public ColorModel getColorModel() {
return cm;
}
@Override
public WritableRaster getRaster() {
return raster;
}
@Override
public Object getData(){
return data;
}
@Override
public boolean isNativeDrawable(){
return false;
}
@Override
public int getSurfaceType() {
return surfaceType;
}
@Override
public synchronized void dispose() {
ba.removeDataBufferListener(raster.getDataBuffer());
}
/**
* Supposes that new raster is compatible with an old one
* @param r
*/
public void setRaster(WritableRaster r) {
raster = r;
DataBuffer db = r.getDataBuffer();
data = ba.getData(db);
ba.addDataBufferListener(db, this);
this.width = r.getWidth();
this.height = r.getHeight();
}
@Override
public long lock() {
// TODO
return 0;
}
@Override
public void unlock() {
//TODO
}
@Override
public Surface getImageSurface() {
return this;
}
public void dataChanged() {
needToRefresh = true;
clearValidCaches();
}
public void dataTaken() {
dataTaken = true;
needToRefresh = true;
clearValidCaches();
}
public void dataReleased(){
dataTaken = false;
needToRefresh = true;
clearValidCaches();
}
@Override
public void invalidate(){
needToRefresh = true;
clearValidCaches();
}
@Override
public void validate(){
if(!needToRefresh) {
return;
}
if(!dataTaken){
needToRefresh = false;
AwtImageBackdoorAccessor ba = AwtImageBackdoorAccessor.getInstance();
ba.validate(raster.getDataBuffer());
}
releaseDurtyRegions();
}
@Override
public boolean invalidated(){
return needToRefresh | dataTaken;
}
}