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 com.kitfox.svg.SVGDiagram;
27 * Video-ram cache suitable for rasterized PaintableSymbols scalable vector graphics.
29 * This implementation rasterizes the same symbol from different mip map levels.
32 * @author Toni Kalajainen
34 public class MipMapVRamBufferedImage extends MipMapBufferedImage {
39 * @param referenceSize a reference size for the rasterized images or
40 * <code>null</code> to not specify one in which case a default
44 public MipMapVRamBufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize)
46 super(original, imageBounds, referenceSize);
50 protected IRaster createRaster(double resolution) {
51 return new VolatileRaster(resolution);
55 protected double getRasterRenderingThresholdResolution() {
56 return maxResolution*1.5;
60 protected void setupSourceRender(Graphics2D g2d) {
61 // g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
62 // g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
63 // g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
64 // g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
65 // g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
66 // g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
68 g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
69 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
70 g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
71 g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
72 g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
73 g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
76 class VolatileRaster extends Raster {
77 VolatileImageProvider imageProvider;
78 int widMargin, heiMargin;
80 AtomicInteger validateResult = new AtomicInteger(VolatileImage.IMAGE_OK);
82 public VolatileRaster(double resolution) {
84 double wid = imageBounds.getWidth();
85 double hei = imageBounds.getHeight();
86 this.wid = (int) (wid * resolution);
87 this.hei = (int) (hei * resolution);
88 widMargin = (int) (wid * resolution * (MARGIN_PERCENT/100)) +1;
89 heiMargin = (int) (hei * resolution * (MARGIN_PERCENT/100)) +1;
90 imageProvider = VolatileImageCache.getInstance().create(this.wid+widMargin*2, this.hei+heiMargin*2);
91 //System.out.println("VolatileRaster(" + resolution + "): " + this.wid + " x " + this.hei);
98 private VolatileImage sourceRender(VolatileImage image) {
99 Graphics2D target = image.createGraphics();
100 target.setBackground(new Color(255,255,255,0));
101 target.clearRect(0, 0, image.getWidth(), image.getHeight());
103 target.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
104 target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
105 target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
106 target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
108 target.translate(widMargin, heiMargin);
109 target.scale(resolution, resolution);
110 target.translate(-imageBounds.getMinX(), -imageBounds.getMinY());
112 source.render(target);
113 } catch (Exception e) {
120 //JAI.create("filestore", image.getSnapshot(), "d:/test" + (koss++) + ".png", "png");
124 synchronized VolatileImage restore(GraphicsConfiguration gc2) {
125 //System.out.println("restoring provider " + imageProvider);
126 VolatileImage image = imageProvider.get(gc2, this.validateResult);
128 // If a new image was created, we always need to render from source.
129 int validateResult = this.validateResult.get();
130 //System.out.println("got VolatileImage " + image + " (validation result=" + validated + ")");
132 // Couldn't get image? This is not supposed to happen but happened anyway.
134 System.err.println("BUG: VolatileImageProvider.get returned null!");
138 // if (validateResult != VolatileImage.IMAGE_OK) {
139 // System.out.println("NEED SOURCE RENDER FOR VOLATILE IMAGE PROVIDER " + imageProvider + " - " + image);
142 boolean contentsLost = validateResult != VolatileImage.IMAGE_OK || image.contentsLost();
143 return contentsLost ? sourceRender(image) : image;
144 //return contentsLost ? sourceRender(image) : sourceRender(image);
147 public void paint(Graphics2D g) {
148 VolatileImage image = restore(g.getDeviceConfiguration());
151 g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
152 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
153 g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
154 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
158 } catch (Exception e) {
159 // TODO Auto-generated catch block
160 // NOTE: Catching Exception instead of SVGException due to an
161 // NPE when encountering invalid color SVG definitions (e.g.
167 AffineTransform af = g.getTransform();
168 Object rh = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
170 /// Bicubic interpolation is very slow with opengl pipeline
171 if (rh == RenderingHints.VALUE_INTERPOLATION_BICUBIC)
172 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
173 g.translate(imageBounds.getMinX(), imageBounds.getMinY());
174 g.scale(1/resolution, 1/resolution);
175 g.translate(-widMargin, -heiMargin);
176 g.drawImage(image, 0, 0, null);
179 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, rh);
183 public void release() {
184 imageProvider.dispose();
188 //static long koss = 0;
192 public int hashCode() {
193 return gc.hashCode() ^original.hashCode();
197 public boolean equals(Object obj) {
198 if (!(obj instanceof VRamBufferedImage)) return false;
199 VRamBufferedImage o = (VRamBufferedImage) obj;
200 return o.gc == gc && o.original.equals(original);