1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.scenegraph.utils;
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14 import java.awt.Color;
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15 import java.awt.Graphics2D;
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16 import java.awt.GraphicsConfiguration;
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17 import java.awt.Point;
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18 import java.awt.RenderingHints;
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19 import java.awt.geom.AffineTransform;
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20 import java.awt.geom.Rectangle2D;
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21 import java.awt.image.VolatileImage;
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22 import java.util.concurrent.atomic.AtomicInteger;
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24 import com.kitfox.svg.SVGDiagram;
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27 * Video-ram cache suitable for rasterized PaintableSymbols scalable vector graphics.
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29 * This implementation rasterizes the same symbol from different mip map levels.
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32 * @author Toni Kalajainen
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34 public class MipMapVRamBufferedImage extends MipMapBufferedImage {
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38 * @param imageBounds
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39 * @param referenceSize a reference size for the rasterized images or
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40 * <code>null</code> to not specify one in which case a default
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41 * resolution is used
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44 public MipMapVRamBufferedImage(SVGDiagram original, Rectangle2D imageBounds, Point referenceSize)
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46 super(original, imageBounds, referenceSize);
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50 protected IRaster createRaster(double resolution) {
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51 return new VolatileRaster(resolution);
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55 protected double getRasterRenderingThresholdResolution() {
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56 return maxResolution*1.5;
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60 protected void setupSourceRender(Graphics2D g2d) {
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61 // g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
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62 // g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
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63 // g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
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64 // g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
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65 // g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
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66 // g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
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68 g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
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69 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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70 g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
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71 g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
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72 g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
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73 g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
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76 class VolatileRaster extends Raster {
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77 VolatileImageProvider imageProvider;
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78 int widMargin, heiMargin;
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80 AtomicInteger validateResult = new AtomicInteger(VolatileImage.IMAGE_OK);
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82 public VolatileRaster(double resolution) {
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84 double wid = imageBounds.getWidth();
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85 double hei = imageBounds.getHeight();
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86 this.wid = (int) (wid * resolution);
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87 this.hei = (int) (hei * resolution);
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88 widMargin = (int) (wid * resolution * (MARGIN_PERCENT/100)) +1;
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89 heiMargin = (int) (hei * resolution * (MARGIN_PERCENT/100)) +1;
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90 imageProvider = VolatileImageCache.getInstance().create(this.wid+widMargin*2, this.hei+heiMargin*2);
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91 //System.out.println("VolatileRaster(" + resolution + "): " + this.wid + " x " + this.hei);
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98 private VolatileImage sourceRender(VolatileImage image) {
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99 Graphics2D target = image.createGraphics();
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100 target.setBackground(new Color(255,255,255,0));
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101 target.clearRect(0, 0, image.getWidth(), image.getHeight());
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103 target.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
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104 target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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105 target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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106 target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
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108 target.translate(widMargin, heiMargin);
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109 target.scale(resolution, resolution);
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110 target.translate(-imageBounds.getMinX(), -imageBounds.getMinY());
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112 source.render(target);
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113 } catch (Exception e) {
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114 e.printStackTrace();
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120 //JAI.create("filestore", image.getSnapshot(), "d:/test" + (koss++) + ".png", "png");
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124 synchronized VolatileImage restore(GraphicsConfiguration gc2) {
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125 //System.out.println("restoring provider " + imageProvider);
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126 VolatileImage image = imageProvider.get(gc2, this.validateResult);
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128 // If a new image was created, we always need to render from source.
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129 int validateResult = this.validateResult.get();
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130 //System.out.println("got VolatileImage " + image + " (validation result=" + validated + ")");
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132 // Couldn't get image? This is not supposed to happen but happened anyway.
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133 if (image == null) {
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134 System.err.println("BUG: VolatileImageProvider.get returned null!");
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138 // if (validateResult != VolatileImage.IMAGE_OK) {
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139 // System.out.println("NEED SOURCE RENDER FOR VOLATILE IMAGE PROVIDER " + imageProvider + " - " + image);
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142 boolean contentsLost = validateResult != VolatileImage.IMAGE_OK || image.contentsLost();
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143 return contentsLost ? sourceRender(image) : image;
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144 //return contentsLost ? sourceRender(image) : sourceRender(image);
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147 public void paint(Graphics2D g) {
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148 VolatileImage image = restore(g.getDeviceConfiguration());
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151 g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
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152 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
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153 g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
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154 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
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158 } catch (Exception e) {
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159 // TODO Auto-generated catch block
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160 // NOTE: Catching Exception instead of SVGException due to an
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161 // NPE when encountering invalid color SVG definitions (e.g.
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163 e.printStackTrace();
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167 AffineTransform af = g.getTransform();
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168 Object rh = g.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
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170 /// Bicubic interpolation is very slow with opengl pipeline
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171 if (rh == RenderingHints.VALUE_INTERPOLATION_BICUBIC)
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172 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
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173 g.translate(imageBounds.getMinX(), imageBounds.getMinY());
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174 g.scale(1/resolution, 1/resolution);
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175 g.translate(-widMargin, -heiMargin);
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176 g.drawImage(image, 0, 0, null);
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178 g.setTransform(af);
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179 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, rh);
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183 public void release() {
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184 imageProvider.dispose();
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188 //static long koss = 0;
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192 public int hashCode() {
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193 return gc.hashCode() ^original.hashCode();
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197 public boolean equals(Object obj) {
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198 if (!(obj instanceof VRamBufferedImage)) return false;
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199 VRamBufferedImage o = (VRamBufferedImage) obj;
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200 return o.gc == gc && o.original.equals(original);
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