org.simantics.g3d/src/org/simantics/proconf/g3d/base/ResourceTextureCache.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007- VTT Technical Research Centre of Finland.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package org.simantics.proconf.g3d.base;\r
  12 \r
  13 import java.nio.ByteBuffer;\r
  14 import java.util.HashMap;\r
  15 import java.util.Map;\r
  16 \r
  17 import org.eclipse.swt.graphics.ImageData;\r
  18 import org.simantics.db.Graph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.proconf.g3d.Resources;\r
  21 import org.simantics.proconf.g3d.stubs.ImageTexture;\r
  22 import org.simantics.proconf.g3d.stubs.TextureCoordinateGenerator;\r
  23 import org.simantics.proconf.image.interfaces.IImage;\r
  24 import org.simantics.proconf.image.interfaces.IImageFactory;\r
  25 import org.simantics.utils.ui.ErrorLogger;\r
  26 import org.simantics.utils.ui.gfx.ImageUtils;\r
  27 import org.simantics.utils.ui.gfx.PixelDimension;\r
  28 \r
  29 import com.jme.image.Image;\r
  30 import com.jme.image.Texture;\r
  31 \r
  32 /**\r
  33  * Caches resource based textures.\r
  34  * TODO : use queries to update textures, now textures are read once and cannot be updated\r
  35  * TODO : either use shared context or use separate cache for each editor\r
  36  * TODO : ShapeNode implementation won't use release texture yet\r
  37  * TODO : Texture is released when reference count goes to zero; we probably want to wait for a while before texture is released because it might be used again.\r
  38  * TODO : Support for other types of textures (not just pattern texture, preferably extensible interface)\r
  39  * \r
  40  * @author Marko Luukkainen <Marko.Luukkainen@vtt.fi>\r
  41  *\r
  42  */\r
  43 public class ResourceTextureCache {\r
  44         \r
  45         public static PixelDimension DEFAULT_SIZE = new PixelDimension(128,128);\r
  46         \r
  47         private static ResourceTextureCache instance = new ResourceTextureCache();\r
  48         \r
  49         private Map<Resource,Image> images = new HashMap<Resource, Image>();\r
  50         private Map<Resource,Integer> imageReferences = new HashMap<Resource, Integer>();\r
  51         \r
  52         private Map<Resource,Texture> textures = new HashMap<Resource, Texture>();\r
  53         private Map<Resource,Integer> textureReferences = new HashMap<Resource, Integer>();\r
  54         \r
  55         \r
  56         private ResourceTextureCache() {\r
  57                 \r
  58         }\r
  59         \r
  60         public Texture loadTexture(Graph g, Resource res) {\r
  61                 Texture t = textures.get(res);\r
  62                 if (t == null) {\r
  63                         ImageTexture it = new ImageTexture(g,res);\r
  64                         org.simantics.image.stubs.Image pattern = it.getImage();\r
  65                         Image image = loadImage(g, pattern.getResource());\r
  66 \r
  67                         if (image == null) {\r
  68                                 return null;\r
  69                         }\r
  70                         t = new Texture();\r
  71                         t.setImage(image);\r
  72                         \r
  73                 \r
  74                         t.setFilter(com.jme.image.Texture.FM_LINEAR);\r
  75                 t.setMipmapState(com.jme.image.Texture.MM_LINEAR);\r
  76                 t.setApply(Texture.AM_COMBINE);\r
  77                 t.setCombineFuncRGB(Texture.ACF_MODULATE);\r
  78                 t.setCombineScaleRGB(2.f);\r
  79 \r
  80                 //t.setWrap(com.jme.image.Texture.WM_WRAP_S_WRAP_T);\r
  81                         \r
  82                         TextureCoordinateGenerator gen = it.getTextureCoordinateGenerator();\r
  83                         setTextureCoordGenerator(gen, t);\r
  84                         textures.put(res, t);\r
  85                 }\r
  86                 addTextureReference(res);\r
  87                 return t;\r
  88         }\r
  89         \r
  90         public void releaseTexture(Graph g, Resource res) {\r
  91                 Integer i = textureReferences.get(res);\r
  92                 if (i != null) {\r
  93                         i = i - 1;\r
  94                         if (i == 0) {\r
  95                                 Texture t = textures.get(res);\r
  96                                 ImageTexture it = new ImageTexture(g,res);\r
  97                                 org.simantics.image.stubs.Image pattern = it.getImage();\r
  98                                 releaseImage(pattern.getResource());\r
  99                                 t.setImage(null);\r
 100                                 textureReferences.remove(res);\r
 101                                 //FIXME : release the texture\r
 102                         } else {\r
 103                                 textureReferences.put(res, i);\r
 104                         }\r
 105                         \r
 106                 } else {\r
 107                         throw new RuntimeException("Cannot released texture that does not exist " + res);\r
 108                 }\r
 109         }\r
 110         \r
 111         public Image loadImage(Graph g, Resource res) {\r
 112                 Image image = images.get(res);\r
 113                 if (image == null) {\r
 114                         org.simantics.image.stubs.Image pattern = new org.simantics.image.stubs.Image(g,res);\r
 115                         IImageFactory f = org.simantics.proconf.image.ImageUtils.getImageFactoryForResource(g,pattern.getResource());\r
 116                 try {\r
 117                         IImage p = f.createImageForResource(g,pattern.getResource());\r
 118                 PixelDimension pd = p.getDimensions().getPixelDimension();\r
 119                 if (pd==null) pd = DEFAULT_SIZE;\r
 120                         ImageData data = p.rasterize(pd.getWidth(), pd.getHeight());\r
 121                         image = getImage(data);\r
 122                         images.put(res, image);\r
 123                         \r
 124                 } catch (Exception e) {\r
 125                         ErrorLogger.defaultLogError("Cannor create pattern texture for resource " + pattern, e);\r
 126                         return null;\r
 127                 }\r
 128                 }\r
 129                 addImageReference(res);\r
 130                 return image;\r
 131                 \r
 132         }\r
 133         \r
 134         private void addTextureReference(Resource res) {\r
 135                 Integer i = textureReferences.get(res);\r
 136                 if (i != null) {\r
 137                         imageReferences.put(res, i + 1);\r
 138                 } else {\r
 139                         imageReferences.put(res, 1);\r
 140                 }\r
 141         }\r
 142         \r
 143         private void addImageReference(Resource res) {\r
 144                 Integer i = imageReferences.get(res);\r
 145                 if (i != null) {\r
 146                         imageReferences.put(res, i + 1);\r
 147                 } else {\r
 148                         imageReferences.put(res, 1);\r
 149                 }\r
 150         }\r
 151         \r
 152         public void releaseImage(Resource res) {\r
 153                 Integer i = imageReferences.get(res);\r
 154                 if (i != null) {\r
 155                         i = i - 1;\r
 156                         if (i == 0) {\r
 157                                 Image image = images.get(res);\r
 158                                 image.getData().clear();\r
 159                                 image.setData(null);\r
 160                                 images.remove(res);\r
 161                                 imageReferences.remove(res);\r
 162                         } else {\r
 163                                 imageReferences.put(res, i);\r
 164                         }\r
 165                 } else {\r
 166                         throw new RuntimeException("Cannot release image that does not exist.");\r
 167                 }\r
 168         }\r
 169         \r
 170         public static ResourceTextureCache getInstance() {\r
 171                 return instance;\r
 172         }\r
 173         \r
 174         public static Image getImage(ImageData imageData) {\r
 175         int width = imageData.width;\r
 176         int height = imageData.height;\r
 177         int type = 0;\r
 178         \r
 179         int components = 3;\r
 180         \r
 181         type = Image.RGB888;\r
 182         if (imageData.alphaData != null) {\r
 183                 type = Image.RGBA8888;\r
 184                 components = 4;\r
 185         }\r
 186         \r
 187         ByteBuffer buf = ByteBuffer.allocateDirect(components * width * height);\r
 188         ImageUtils.convertToRGBA(imageData, buf);       \r
 189         return new Image(type,width,height,buf);\r
 190     }\r
 191         \r
 192         \r
 193         public static void setTextureCoordGenerator(TextureCoordinateGenerator gen, com.jme.image.Texture texture) {\r
 194         if (gen == null)\r
 195             return ;\r
 196 \r
 197         //g3dResource.\r
 198         if (gen.equals(Resources.g3dResource.TextureCoordinateGenerator_sphere))\r
 199                 texture.setEnvironmentalMapMode(com.jme.image.Texture.EM_SPHERE);\r
 200         else if (gen.equals(Resources.g3dResource.TextureCoordinateGenerator_eyelinear))\r
 201                 texture.setEnvironmentalMapMode(com.jme.image.Texture.EM_EYE_LINEAR);\r
 202         else if (gen.equals(Resources.g3dResource.TextureCoordinateGenerator_objectlinear))\r
 203                 texture.setEnvironmentalMapMode(com.jme.image.Texture.EM_OBJECT_LINEAR);\r
 204         else if (gen.equals(Resources.g3dResource.TextureCoordinateGenerator_normal))\r
 205                 ErrorLogger.getDefault().logWarning("JME doesn't support normal texture coordinate generation", null);\r
 206         else if (gen.equals(Resources.g3dResource.TextureCoordinateGenerator_reflection))\r
 207                 ErrorLogger.getDefault().logWarning("JME doesn't support reflection texture coordinate generation", null);\r
 208         else\r
 209                 ErrorLogger.getDefault().logWarning("Unsupported TexGen type " + gen.getName(), null);\r
 210     }\r
 211         \r
 212         public void clear() {\r
 213                 for (Image i : images.values())\r
 214                         i.setData(null);\r
 215                 for (Texture t : textures.values())\r
 216                         t.setImage(null);\r
 217                 imageReferences.clear();\r
 218                 textureReferences.clear();\r
 219                 images.clear();\r
 220                 textures.clear();\r
 221         \r
 222         }\r
 223 \r
 224 }\r