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/*
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* Copyright (c) 1997, 2002, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.java2d.pipe;
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import java.awt.AlphaComposite;
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import java.awt.CompositeContext;
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import java.awt.PaintContext;
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import java.awt.Rectangle;
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import java.awt.Shape;
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import java.awt.RenderingHints;
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import java.awt.image.ColorModel;
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import java.awt.image.BufferedImage;
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import java.awt.image.Raster;
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import java.awt.image.WritableRaster;
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import sun.awt.image.BufImgSurfaceData;
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import sun.java2d.SunGraphics2D;
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import sun.java2d.SurfaceData;
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import sun.java2d.loops.Blit;
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import sun.java2d.loops.MaskBlit;
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import sun.java2d.loops.CompositeType;
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public class GeneralCompositePipe implements CompositePipe {
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class TileContext {
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SunGraphics2D sunG2D;
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PaintContext paintCtxt;
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CompositeContext compCtxt;
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ColorModel compModel;
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Object pipeState;
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public TileContext(SunGraphics2D sg, PaintContext pCtx,
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CompositeContext cCtx, ColorModel cModel) {
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sunG2D = sg;
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paintCtxt = pCtx;
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compCtxt = cCtx;
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compModel = cModel;
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}
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}
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public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR,
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int[] abox) {
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RenderingHints hints = sg.getRenderingHints();
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ColorModel model = sg.getDeviceColorModel();
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PaintContext paintContext =
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sg.paint.createContext(model, devR, s.getBounds2D(),
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sg.cloneTransform(),
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hints);
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CompositeContext compositeContext =
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sg.composite.createContext(paintContext.getColorModel(), model,
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hints);
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return new TileContext(sg, paintContext, compositeContext, model);
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}
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public boolean needTile(Object ctx, int x, int y, int w, int h) {
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return true;
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}
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/**
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* GeneralCompositePipe.renderPathTile works with custom composite operator
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* provided by an application
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*/
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public void renderPathTile(Object ctx,
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byte[] atile, int offset, int tilesize,
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int x, int y, int w, int h) {
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TileContext context = (TileContext) ctx;
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PaintContext paintCtxt = context.paintCtxt;
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CompositeContext compCtxt = context.compCtxt;
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SunGraphics2D sg = context.sunG2D;
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Raster srcRaster = paintCtxt.getRaster(x, y, w, h);
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ColorModel paintModel = paintCtxt.getColorModel();
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Raster dstRaster;
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Raster dstIn;
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WritableRaster dstOut;
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SurfaceData sd = sg.getSurfaceData();
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dstRaster = sd.getRaster(x, y, w, h);
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if (dstRaster instanceof WritableRaster && atile == null) {
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dstOut = (WritableRaster) dstRaster;
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dstOut = dstOut.createWritableChild(x, y, w, h, 0, 0, null);
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dstIn = dstOut;
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} else {
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dstIn = dstRaster.createChild(x, y, w, h, 0, 0, null);
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dstOut = dstIn.createCompatibleWritableRaster();
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}
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compCtxt.compose(srcRaster, dstIn, dstOut);
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if (dstRaster != dstOut && dstOut.getParent() != dstRaster) {
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if (dstRaster instanceof WritableRaster && atile == null) {
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((WritableRaster) dstRaster).setDataElements(x, y, dstOut);
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} else {
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ColorModel cm = sg.getDeviceColorModel();
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BufferedImage resImg =
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new BufferedImage(cm, dstOut,
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cm.isAlphaPremultiplied(),
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null);
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SurfaceData resData = BufImgSurfaceData.createData(resImg);
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if (atile == null) {
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Blit blit = Blit.getFromCache(resData.getSurfaceType(),
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CompositeType.SrcNoEa,
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sd.getSurfaceType());
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blit.Blit(resData, sd, AlphaComposite.Src, null,
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0, 0, x, y, w, h);
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} else {
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MaskBlit blit = MaskBlit.getFromCache(resData.getSurfaceType(),
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CompositeType.SrcNoEa,
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sd.getSurfaceType());
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blit.MaskBlit(resData, sd, AlphaComposite.Src, null,
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0, 0, x, y, w, h,
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atile, offset, tilesize);
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}
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}
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}
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}
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public void skipTile(Object ctx, int x, int y) {
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return;
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}
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public void endSequence(Object ctx) {
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TileContext context = (TileContext) ctx;
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if (context.paintCtxt != null) {
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context.paintCtxt.dispose();
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}
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if (context.compCtxt != null) {
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context.compCtxt.dispose();
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}
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}
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}
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