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

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