| /* | |
| * Copyright (c) 1997, 2002, 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 | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| package sun.java2d.pipe; | |
| import java.lang.ref.WeakReference; | |
| import java.awt.Rectangle; | |
| import java.awt.Shape; | |
| import java.awt.PaintContext; | |
| import java.awt.Transparency; | |
| import java.awt.image.ColorModel; | |
| import java.awt.image.Raster; | |
| import java.awt.image.WritableRaster; | |
| import java.awt.image.BufferedImage; | |
| import sun.awt.image.BufImgSurfaceData; | |
| import sun.java2d.SunGraphics2D; | |
| import sun.java2d.SurfaceData; | |
| import sun.java2d.loops.Blit; | |
| import sun.java2d.loops.MaskBlit; | |
| import sun.java2d.loops.CompositeType; | |
| import sun.java2d.loops.GraphicsPrimitiveMgr; | |
| /** | |
| * This class implements a CompositePipe that renders path alpha tiles | |
| * into a destination according to the Composite attribute of a | |
| * SunGraphics2D. | |
| */ | |
| public class AlphaPaintPipe implements CompositePipe { | |
| static WeakReference<Raster> cachedLastRaster; | |
| static WeakReference<ColorModel> cachedLastColorModel; | |
| static WeakReference<SurfaceData> cachedLastData; | |
| static class TileContext { | |
| SunGraphics2D sunG2D; | |
| PaintContext paintCtxt; | |
| ColorModel paintModel; | |
| WeakReference<Raster> lastRaster; | |
| WeakReference<SurfaceData> lastData; | |
| MaskBlit lastMask; | |
| Blit lastBlit; | |
| SurfaceData dstData; | |
| public TileContext(SunGraphics2D sg, PaintContext pc) { | |
| sunG2D = sg; | |
| paintCtxt = pc; | |
| paintModel = pc.getColorModel(); | |
| dstData = sg.getSurfaceData(); | |
| synchronized (AlphaPaintPipe.class) { | |
| if (cachedLastColorModel != null && | |
| cachedLastColorModel.get() == paintModel) | |
| { | |
| this.lastRaster = cachedLastRaster; | |
| this.lastData = cachedLastData; | |
| } | |
| } | |
| } | |
| } | |
| public Object startSequence(SunGraphics2D sg, Shape s, Rectangle devR, | |
| int[] abox) { | |
| PaintContext paintContext = | |
| sg.paint.createContext(sg.getDeviceColorModel(), | |
| devR, | |
| s.getBounds2D(), | |
| sg.cloneTransform(), | |
| sg.getRenderingHints()); | |
| return new TileContext(sg, paintContext); | |
| } | |
| public boolean needTile(Object context, int x, int y, int w, int h) { | |
| return true; | |
| } | |
| private static final int TILE_SIZE = 32; | |
| public void renderPathTile(Object ctx, | |
| byte[] atile, int offset, int tilesize, | |
| int x, int y, int w, int h) { | |
| TileContext context = (TileContext) ctx; | |
| PaintContext paintCtxt = context.paintCtxt; | |
| SunGraphics2D sg = context.sunG2D; | |
| SurfaceData dstData = context.dstData; | |
| SurfaceData srcData = null; | |
| Raster lastRas = null; | |
| if (context.lastData != null && context.lastRaster != null) { | |
| srcData = context.lastData.get(); | |
| lastRas = context.lastRaster.get(); | |
| if (srcData == null || lastRas == null) { | |
| srcData = null; | |
| lastRas = null; | |
| } | |
| } | |
| ColorModel paintModel = context.paintModel; | |
| for (int rely = 0; rely < h; rely += TILE_SIZE) { | |
| int ty = y + rely; | |
| int th = Math.min(h-rely, TILE_SIZE); | |
| for (int relx = 0; relx < w; relx += TILE_SIZE) { | |
| int tx = x + relx; | |
| int tw = Math.min(w-relx, TILE_SIZE); | |
| Raster srcRaster = paintCtxt.getRaster(tx, ty, tw, th); | |
| if ((srcRaster.getMinX() != 0) || (srcRaster.getMinY() != 0)) { | |
| srcRaster = srcRaster.createTranslatedChild(0, 0); | |
| } | |
| if (lastRas != srcRaster) { | |
| lastRas = srcRaster; | |
| context.lastRaster = new WeakReference<>(lastRas); | |
| // REMIND: This will fail for a non-Writable raster! | |
| BufferedImage bImg = | |
| new BufferedImage(paintModel, | |
| (WritableRaster) srcRaster, | |
| paintModel.isAlphaPremultiplied(), | |
| null); | |
| srcData = BufImgSurfaceData.createData(bImg); | |
| context.lastData = new WeakReference<>(srcData); | |
| context.lastMask = null; | |
| context.lastBlit = null; | |
| } | |
| if (atile == null) { | |
| if (context.lastBlit == null) { | |
| CompositeType comptype = sg.imageComp; | |
| if (CompositeType.SrcOverNoEa.equals(comptype) && | |
| paintModel.getTransparency() == Transparency.OPAQUE) | |
| { | |
| comptype = CompositeType.SrcNoEa; | |
| } | |
| context.lastBlit = | |
| Blit.getFromCache(srcData.getSurfaceType(), | |
| comptype, | |
| dstData.getSurfaceType()); | |
| } | |
| context.lastBlit.Blit(srcData, dstData, | |
| sg.composite, null, | |
| 0, 0, tx, ty, tw, th); | |
| } else { | |
| if (context.lastMask == null) { | |
| CompositeType comptype = sg.imageComp; | |
| if (CompositeType.SrcOverNoEa.equals(comptype) && | |
| paintModel.getTransparency() == Transparency.OPAQUE) | |
| { | |
| comptype = CompositeType.SrcNoEa; | |
| } | |
| context.lastMask = | |
| MaskBlit.getFromCache(srcData.getSurfaceType(), | |
| comptype, | |
| dstData.getSurfaceType()); | |
| } | |
| int toff = offset + rely * tilesize + relx; | |
| context.lastMask.MaskBlit(srcData, dstData, | |
| sg.composite, null, | |
| 0, 0, tx, ty, tw, th, | |
| atile, toff, tilesize); | |
| } | |
| } | |
| } | |
| } | |
| public void skipTile(Object context, int x, int y) { | |
| return; | |
| } | |
| public void endSequence(Object ctx) { | |
| TileContext context = (TileContext) ctx; | |
| if (context.paintCtxt != null) { | |
| context.paintCtxt.dispose(); | |
| } | |
| synchronized (AlphaPaintPipe.class) { | |
| if (context.lastData != null) { | |
| cachedLastRaster = context.lastRaster; | |
| if (cachedLastColorModel == null || | |
| cachedLastColorModel.get() != context.paintModel) | |
| { | |
| // Avoid creating new WeakReference if possible | |
| cachedLastColorModel = | |
| new WeakReference<>(context.paintModel); | |
| } | |
| cachedLastData = context.lastData; | |
| } | |
| } | |
| } | |
| } |