1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.scenegraph.utils;
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.concurrent.atomic.AtomicInteger;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import com.kitfox.svg.SVGDiagram;
30 * Video-ram cache suitable for rasterized PaintableSymbols scalable vector graphics.
32 * This implementation rasterizes the same symbol from different mip map levels.
35 * @author Toni Kalajainen
37 public class MipMapVRamBufferedImage extends MipMapBufferedImage {
39 private static final Logger LOGGER = LoggerFactory.getLogger(MipMapVRamBufferedImage.class);
43 * @param referenceSize a reference size for the rasterized images or
44 * <code>null</code> to not specify one in which case a default
48 public MipMapVRamBufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize)
50 super(original, imageBounds, referenceSize);
54 protected IRaster createRaster(double resolution) {
55 return new VolatileRaster(resolution);
59 protected double getRasterRenderingThresholdResolution() {
60 return maxResolution*1.5;
64 protected void setupSourceRender(Graphics2D g2d) {
65 // g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
66 // g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
67 // g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
68 // g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
69 // g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
70 // g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
72 g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
73 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
74 g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
75 g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
76 g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
77 g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
80 class VolatileRaster extends Raster {
81 VolatileImageProvider imageProvider;
82 int widMargin, heiMargin;
84 AtomicInteger validateResult = new AtomicInteger(VolatileImage.IMAGE_OK);
86 public VolatileRaster(double resolution) {
88 double wid = imageBounds.getWidth();
89 double hei = imageBounds.getHeight();
90 this.wid = (int) (wid * resolution);
91 this.hei = (int) (hei * resolution);
92 widMargin = (int) (wid * resolution * (MARGIN_PERCENT/100)) +1;
93 heiMargin = (int) (hei * resolution * (MARGIN_PERCENT/100)) +1;
94 imageProvider = VolatileImageCache.getInstance().create(this.wid+widMargin*2, this.hei+heiMargin*2);
95 //System.out.println("VolatileRaster(" + resolution + "): " + this.wid + " x " + this.hei);
102 private VolatileImage sourceRender(VolatileImage image) {
103 Graphics2D target = image.createGraphics();
104 target.setBackground(new Color(255,255,255,0));
105 target.clearRect(0, 0, image.getWidth(), image.getHeight());
107 target.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
108 target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
109 target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
110 target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
112 target.translate(widMargin, heiMargin);
113 target.scale(resolution, resolution);
114 target.translate(-imageBounds.getMinX(), -imageBounds.getMinY());
116 source.render(target);
117 } catch (Exception e) {
124 //JAI.create("filestore", image.getSnapshot(), "d:/test" + (koss++) + ".png", "png");
128 synchronized VolatileImage restore(GraphicsConfiguration gc2) {
129 //System.out.println("restoring provider " + imageProvider);
130 VolatileImage image = imageProvider.get(gc2, this.validateResult);
132 // If a new image was created, we always need to render from source.
133 int validateResult = this.validateResult.get();
134 //System.out.println("got VolatileImage " + image + " (validation result=" + validated + ")");
136 // Couldn't get image? This is not supposed to happen but happened anyway.
138 LOGGER.error("BUG: VolatileImageProvider.get returned null!");
142 // if (validateResult != VolatileImage.IMAGE_OK) {
143 // System.out.println("NEED SOURCE RENDER FOR VOLATILE IMAGE PROVIDER " + imageProvider + " - " + image);
146 boolean contentsLost = validateResult != VolatileImage.IMAGE_OK || image.contentsLost();
147 return contentsLost ? sourceRender(image) : image;
148 //return contentsLost ? sourceRender(image) : sourceRender(image);
151 public void paint(Graphics2D g) {
152 VolatileImage image = restore(g.getDeviceConfiguration());
155 g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
156 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
157 g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
158 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
162 } catch (Exception e) {
163 // TODO Auto-generated catch block
164 // NOTE: Catching Exception instead of SVGException due to an
165 // NPE when encountering invalid color SVG definitions (e.g.
171 AffineTransform af = g.getTransform();
172 Object rh = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
174 /// Bicubic interpolation is very slow with opengl pipeline
175 if (rh == RenderingHints.VALUE_INTERPOLATION_BICUBIC)
176 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
177 g.translate(imageBounds.getMinX(), imageBounds.getMinY());
178 g.scale(1/resolution, 1/resolution);
179 g.translate(-widMargin, -heiMargin);
180 g.drawImage(image, 0, 0, null);
183 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, rh);
187 public void release() {
188 imageProvider.dispose();
192 //static long koss = 0;
196 public int hashCode() {
197 return gc.hashCode() ^original.hashCode();
201 public boolean equals(Object obj) {
202 if (!(obj instanceof VRamBufferedImage)) return false;
203 VRamBufferedImage o = (VRamBufferedImage) obj;
204 return o.gc == gc && o.original.equals(original);