1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 package com.badlogic.gdx.assets.loaders; 18 19 import java.util.Iterator; 20 21 import com.badlogic.gdx.assets.AssetDescriptor; 22 import com.badlogic.gdx.assets.AssetLoaderParameters; 23 import com.badlogic.gdx.assets.AssetManager; 24 import com.badlogic.gdx.files.FileHandle; 25 import com.badlogic.gdx.graphics.Texture; 26 import com.badlogic.gdx.graphics.g3d.Model; 27 import com.badlogic.gdx.graphics.g3d.model.data.ModelData; 28 import com.badlogic.gdx.graphics.g3d.model.data.ModelMaterial; 29 import com.badlogic.gdx.graphics.g3d.model.data.ModelTexture; 30 import com.badlogic.gdx.graphics.g3d.utils.TextureProvider; 31 import com.badlogic.gdx.utils.Array; 32 import com.badlogic.gdx.utils.Disposable; 33 import com.badlogic.gdx.utils.ObjectMap; 34 35 public abstract class ModelLoader<P extends ModelLoader.ModelParameters> extends AsynchronousAssetLoader<Model, P> { 36 public ModelLoader (FileHandleResolver resolver) { 37 super(resolver); 38 } 39 40 protected Array<ObjectMap.Entry<String, ModelData>> items = new Array<ObjectMap.Entry<String, ModelData>>(); 41 protected ModelParameters defaultParameters = new ModelParameters(); 42 43 /** Directly load the raw model data on the calling thread. */ 44 public abstract ModelData loadModelData (final FileHandle fileHandle, P parameters); 45 46 /** Directly load the raw model data on the calling thread. */ 47 public ModelData loadModelData (final FileHandle fileHandle) { 48 return loadModelData(fileHandle, null); 49 } 50 51 /** Directly load the model on the calling thread. The model with not be managed by an {@link AssetManager}. */ 52 public Model loadModel (final FileHandle fileHandle, TextureProvider textureProvider, P parameters) { 53 final ModelData data = loadModelData(fileHandle, parameters); 54 return data == null ? null : new Model(data, textureProvider); 55 } 56 57 /** Directly load the model on the calling thread. The model with not be managed by an {@link AssetManager}. */ 58 public Model loadModel (final FileHandle fileHandle, P parameters) { 59 return loadModel(fileHandle, new TextureProvider.FileTextureProvider(), parameters); 60 } 61 62 /** Directly load the model on the calling thread. The model with not be managed by an {@link AssetManager}. */ 63 public Model loadModel (final FileHandle fileHandle, TextureProvider textureProvider) { 64 return loadModel(fileHandle, textureProvider, null); 65 } 66 67 /** Directly load the model on the calling thread. The model with not be managed by an {@link AssetManager}. */ 68 public Model loadModel (final FileHandle fileHandle) { 69 return loadModel(fileHandle, new TextureProvider.FileTextureProvider(), null); 70 } 71 72 @Override 73 public Array<AssetDescriptor> getDependencies (String fileName, FileHandle file, P parameters) { 74 final Array<AssetDescriptor> deps = new Array(); 75 ModelData data = loadModelData(file, parameters); 76 if (data == null) return deps; 77 78 ObjectMap.Entry<String, ModelData> item = new ObjectMap.Entry<String, ModelData>(); 79 item.key = fileName; 80 item.value = data; 81 synchronized (items) { 82 items.add(item); 83 } 84 85 TextureLoader.TextureParameter textureParameter = (parameters != null) 86 ? parameters.textureParameter 87 : defaultParameters.textureParameter; 88 89 for (final ModelMaterial modelMaterial : data.materials) { 90 if (modelMaterial.textures != null) { 91 for (final ModelTexture modelTexture : modelMaterial.textures) 92 deps.add(new AssetDescriptor(modelTexture.fileName, Texture.class, textureParameter)); 93 } 94 } 95 return deps; 96 } 97 98 @Override 99 public void loadAsync (AssetManager manager, String fileName, FileHandle file, P parameters) { 100 } 101 102 @Override 103 public Model loadSync (AssetManager manager, String fileName, FileHandle file, P parameters) { 104 ModelData data = null; 105 synchronized (items) { 106 for (int i = 0; i < items.size; i++) { 107 if (items.get(i).key.equals(fileName)) { 108 data = items.get(i).value; 109 items.removeIndex(i); 110 } 111 } 112 } 113 if (data == null) return null; 114 final Model result = new Model(data, new TextureProvider.AssetTextureProvider(manager)); 115 // need to remove the textures from the managed disposables, or else ref counting 116 // doesn't work! 117 Iterator<Disposable> disposables = result.getManagedDisposables().iterator(); 118 while (disposables.hasNext()) { 119 Disposable disposable = disposables.next(); 120 if (disposable instanceof Texture) { 121 disposables.remove(); 122 } 123 } 124 data = null; 125 return result; 126 } 127 128 static public class ModelParameters extends AssetLoaderParameters<Model> { 129 public TextureLoader.TextureParameter textureParameter; 130 131 public ModelParameters() { 132 textureParameter = new TextureLoader.TextureParameter(); 133 textureParameter.minFilter = textureParameter.magFilter = Texture.TextureFilter.Linear; 134 textureParameter.wrapU = textureParameter.wrapV = Texture.TextureWrap.Repeat; 135 } 136 } 137 } 138
