bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/utils/MipMapVRamBufferedImage.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.scenegraph.utils;
  13
  14 import java.awt.Color;
  15 import java.awt.Graphics2D;
  16 import java.awt.GraphicsConfiguration;
  17 import java.awt.Point;
  18 import java.awt.RenderingHints;
  19 import java.awt.geom.AffineTransform;
  20 import java.awt.geom.Rectangle2D;
  21 import java.awt.image.VolatileImage;
  22 import java.util.Objects;
  23 import java.util.concurrent.atomic.AtomicInteger;
  24
  25 import org.simantics.scenegraph.g2d.G2DRenderingHints;
  26 import org.simantics.scenegraph.g2d.color.ColorFilter;
  27 import org.simantics.scenegraph.g2d.color.Graphics2DWithColorFilter;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 import com.kitfox.svg.SVGDiagram;
  32
  33 /**
  34  * Video-ram cache suitable for rasterized PaintableSymbols scalable vector graphics.
  35  * <p>
  36  * This implementation rasterizes the same symbol from different mip map levels.
  37  *
  38  * @see VRamImage
  39  * @author Toni Kalajainen
  40  */
  41 public class MipMapVRamBufferedImage extends MipMapBufferedImage {
  42
  43     private static final Logger LOGGER = LoggerFactory.getLogger(MipMapVRamBufferedImage.class);
  44     /**
  45      * @param original
  46      * @param imageBounds
  47      * @param referenceSize a reference size for the rasterized images or
  48      *        <code>null</code> to not specify one in which case a default
  49      *        resolution is used
  50      * @param gc
  51      */
  52     public MipMapVRamBufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize)
  53     {
  54         super(original, imageBounds, referenceSize);
  55     }
  56
  57     @Override
  58     protected IRaster createRaster(double resolution) {
  59         return new VolatileRaster(resolution);
  60     }
  61
  62     @Override
  63     protected double getRasterRenderingThresholdResolution() {
  64         return maxResolution*1.5;
  65     }
  66
  67     @Override
  68     protected void setupSourceRender(Graphics2D g2d) {
  69 //        g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
  70 //        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
  71 //        g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
  72 //        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
  73 //        g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
  74 //        g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
  75
  76         g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
  77         g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  78         g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
  79         g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
  80         g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
  81         g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
  82     }
  83
  84     class VolatileRaster extends Raster {
  85         VolatileImageProvider imageProvider;
  86         int widMargin, heiMargin;
  87         int wid, hei;
  88         AtomicInteger validateResult = new AtomicInteger(VolatileImage.IMAGE_OK);
  89
  90         public VolatileRaster(double resolution) {
  91             super(resolution);
  92             double wid = imageBounds.getWidth();
  93             double hei = imageBounds.getHeight();
  94             this.wid = (int) (wid * resolution);
  95             this.hei = (int) (hei * resolution);
  96             widMargin = (int) (wid * resolution * (MARGIN_PERCENT/100)) +1;
  97             heiMargin = (int) (hei * resolution * (MARGIN_PERCENT/100)) +1;
  98             imageProvider = VolatileImageCache.getInstance().create(this.wid+widMargin*2, this.hei+heiMargin*2);
  99             //System.out.println("VolatileRaster(" + resolution + "): " + this.wid + " x " + this.hei);
 100         }
 101
 102         /**
 103          * @param image
 104          * @return
 105          */
 106         private VolatileImage sourceRender(VolatileImage image, ColorFilter colorFilter) {
 107             Graphics2D target = image.createGraphics();
 108             target.setBackground(new Color(255,255,255,0));
 109             target.clearRect(0, 0, image.getWidth(), image.getHeight());
 110
 111             target.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
 112             target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 113             target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 114             target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
 115
 116             target.translate(widMargin, heiMargin);
 117             target.scale(resolution, resolution);
 118             target.translate(-imageBounds.getMinX(), -imageBounds.getMinY());
 119             try {
 120                 if (colorFilter != null) {
 121                     source.render(new Graphics2DWithColorFilter(target, colorFilter));
 122                 } else {
 123                     source.render(target);
 124                 }
 125             } catch (Exception e) {
 126                 e.printStackTrace();
 127                 target.dispose();
 128                 image = null;
 129                 return null;
 130             }
 131             target.dispose();
 132             //JAI.create("filestore", image.getSnapshot(), "d:/test" + (koss++) + ".png", "png");
 133             return image;
 134         }
 135
 136         synchronized VolatileImage restore(GraphicsConfiguration gc2, ColorFilter colorFilter) {
 137             //System.out.println("restoring provider " + imageProvider);
 138             VolatileImage image = imageProvider.get(gc2, this.validateResult);
 139
 140             // If a new image was created, we always need to render from source.
 141             int validateResult = this.validateResult.get();
 142             //System.out.println("got VolatileImage " + image + " (validation result=" + validated + ")");
 143
 144             // Couldn't get image? This is not supposed to happen but happened anyway.
 145             if (image == null) {
 146                 LOGGER.error("BUG: VolatileImageProvider.get returned null!");
 147                 return null;
 148             }
 149
 150 //            if (validateResult != VolatileImage.IMAGE_OK) {
 151 //                System.out.println("NEED SOURCE RENDER FOR VOLATILE IMAGE PROVIDER " + imageProvider + " - " + image);
 152 //            }
 153
 154             boolean contentsLost = validateResult != VolatileImage.IMAGE_OK || image.contentsLost();
 155             boolean changed = !Objects.equals(colorFilter, previousColorFilter);
 156             previousColorFilter = colorFilter;
 157             return contentsLost || changed ? sourceRender(image, colorFilter) : image;
 158             //return contentsLost ? sourceRender(image) : sourceRender(image);
 159         }
 160
 161         public void paint(Graphics2D g) {
 162             ColorFilter colorFilter = (ColorFilter) g.getRenderingHint(G2DRenderingHints.KEY_COLOR_FILTER);
 163             VolatileImage image = restore(g.getDeviceConfiguration(), colorFilter);
 164             if (image==null)
 165             {
 166                 g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
 167                 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
 168                 g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
 169                 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
 170
 171                 try {
 172                     source.render(new Graphics2DWithColorFilter(g, colorFilter));
 173                 } catch (Exception e) {
 174                     // TODO Auto-generated catch block
 175                     // NOTE: Catching Exception instead of SVGException due to an
 176                     // NPE when encountering invalid color SVG definitions (e.g.
 177                     // rgb(256,-1,0))
 178                     e.printStackTrace();
 179                 }
 180                 return;
 181             }
 182             AffineTransform af = g.getTransform();
 183             Object rh = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
 184             try {
 185                 /// Bicubic interpolation is very slow with opengl pipeline
 186                 if (rh == RenderingHints.VALUE_INTERPOLATION_BICUBIC)
 187                     g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
 188                 g.translate(imageBounds.getMinX(), imageBounds.getMinY());
 189                 g.scale(1/resolution, 1/resolution);
 190                 g.translate(-widMargin, -heiMargin);
 191                 g.drawImage(image, 0, 0, null);
 192             } finally {
 193                 g.setTransform(af);
 194                 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, rh);
 195             }
 196         }
 197
 198         public void release() {
 199             imageProvider.dispose();
 200         }
 201     }
 202
 203     //static long koss = 0;
 204
 205     /*
 206     @Override
 207     public int hashCode() {
 208         return gc.hashCode() ^original.hashCode();
 209     }
 210
 211     @Override
 212     public boolean equals(Object obj) {
 213         if (!(obj instanceof VRamBufferedImage)) return false;
 214         VRamBufferedImage o = (VRamBufferedImage) obj;
 215         return o.gc == gc && o.original.equals(original);
 216     }
 217      */
 218
 219 }