Added support for modifiers validating. Now modifiers that are invalid will not be loaded.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8245 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ArmatureModifier.java

@@ -7,6 +7,8 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.jme3.animation.AnimControl;
 import com.jme3.animation.Animation;
@@ -43,6 +45,7 @@ import com.jme3.util.BufferUtils;
  * @author Marcin Roguski (Kaelthas)
  */
 /* package */class ArmatureModifier extends Modifier {
+	private static final Logger LOGGER = Logger.getLogger(ArmatureModifier.class.getName());
 	private static final int	MAXIMUM_WEIGHTS_PER_VERTEX	= 4;	// have no idea why 4, could someone please explain ?
 	
 	/** Loaded animation data. */
@@ -80,53 +83,55 @@ import com.jme3.util.BufferUtils;
 	 *             corrupted
 	 */
 	public ArmatureModifier(Structure objectStructure, Structure modifierStructure, BlenderContext blenderContext) throws BlenderFileException {
-		Pointer pArmatureObject = (Pointer) modifierStructure.getFieldValue("object");
-		if (pArmatureObject.isNotNull()) {
-			ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
-			ArmatureHelper armatureHelper = blenderContext.getHelper(ArmatureHelper.class);
-			
-			Structure armatureObject = pArmatureObject.fetchData(blenderContext.getInputStream()).get(0);
-			this.armatureObjectOMA = armatureObject.getOldMemoryAddress();
-
-			//read skeleton
-			// changing bones matrices so that they fit the current object
-			Structure armatureStructure = ((Pointer)armatureObject.getFieldValue("data")).fetchData(blenderContext.getInputStream()).get(0);
-			Structure bonebase = (Structure) armatureStructure.getFieldValue("bonebase");
-	        List<Structure> bonesStructures = bonebase.evaluateListBase(blenderContext);
-	        for (Structure boneStructure : bonesStructures) {
-	            BoneTransformationData rootBoneTransformationData = armatureHelper.readBoneAndItsChildren(boneStructure, null, blenderContext);
-	            armatureHelper.addBoneDataRoot(rootBoneTransformationData);
-	        }
-			Matrix4f armatureObjectMatrix = objectHelper.getTransformationMatrix(armatureObject);
-			Matrix4f inverseMeshObjectMatrix = objectHelper.getTransformationMatrix(objectStructure).invert();
-			Matrix4f additionalRootBoneTransformation = inverseMeshObjectMatrix.multLocal(armatureObjectMatrix);
-			Bone[] bones = armatureHelper.buildBonesStructure(Long.valueOf(0L), additionalRootBoneTransformation);
-
-			//read mesh indexes
-			Structure meshStructure = ((Pointer)objectStructure.getFieldValue("data")).fetchData(blenderContext.getInputStream()).get(0);
-			this.meshOMA = meshStructure.getOldMemoryAddress();
-			this.readVerticesWeightsData(objectStructure, meshStructure, blenderContext);
-			
-			//read animations
-			String objectName = objectStructure.getName();
-			Set<String> animationNames = blenderContext.getBlenderKey().getAnimationNames(objectName);
-			if (animationNames != null && animationNames.size() > 0) {
-				ArrayList<Animation> animations = new ArrayList<Animation>();
-				List<FileBlockHeader> actionHeaders = blenderContext.getFileBlocks(Integer.valueOf(FileBlockHeader.BLOCK_AC00));
-				for (FileBlockHeader header : actionHeaders) {
-					Structure actionStructure = header.getStructure(blenderContext);
-					String actionName = actionStructure.getName();
-					if (animationNames.contains(actionName)) {
-						int[] animationFrames = blenderContext.getBlenderKey().getAnimationFrames(objectName, actionName);
-						int fps = blenderContext.getBlenderKey().getFps();
-						float start = (float) animationFrames[0] / (float) fps;
-						float stop = (float) animationFrames[1] / (float) fps;
-						BoneAnimation boneAnimation = new BoneAnimation(actionName, stop - start);
-						boneAnimation.setTracks(armatureHelper.getTracks(actionStructure, blenderContext, objectName, actionName));
-						animations.add(boneAnimation);
+		if(this.validate(modifierStructure, blenderContext)) {
+			Pointer pArmatureObject = (Pointer) modifierStructure.getFieldValue("object");
+			if (pArmatureObject.isNotNull()) {
+				ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
+				ArmatureHelper armatureHelper = blenderContext.getHelper(ArmatureHelper.class);
+				
+				Structure armatureObject = pArmatureObject.fetchData(blenderContext.getInputStream()).get(0);
+				this.armatureObjectOMA = armatureObject.getOldMemoryAddress();
+	
+				//read skeleton
+				// changing bones matrices so that they fit the current object
+				Structure armatureStructure = ((Pointer)armatureObject.getFieldValue("data")).fetchData(blenderContext.getInputStream()).get(0);
+				Structure bonebase = (Structure) armatureStructure.getFieldValue("bonebase");
+		        List<Structure> bonesStructures = bonebase.evaluateListBase(blenderContext);
+		        for (Structure boneStructure : bonesStructures) {
+		            BoneTransformationData rootBoneTransformationData = armatureHelper.readBoneAndItsChildren(boneStructure, null, blenderContext);
+		            armatureHelper.addBoneDataRoot(rootBoneTransformationData);
+		        }
+				Matrix4f armatureObjectMatrix = objectHelper.getTransformationMatrix(armatureObject);
+				Matrix4f inverseMeshObjectMatrix = objectHelper.getTransformationMatrix(objectStructure).invert();
+				Matrix4f additionalRootBoneTransformation = inverseMeshObjectMatrix.multLocal(armatureObjectMatrix);
+				Bone[] bones = armatureHelper.buildBonesStructure(Long.valueOf(0L), additionalRootBoneTransformation);
+	
+				//read mesh indexes
+				Structure meshStructure = ((Pointer)objectStructure.getFieldValue("data")).fetchData(blenderContext.getInputStream()).get(0);
+				this.meshOMA = meshStructure.getOldMemoryAddress();
+				this.readVerticesWeightsData(objectStructure, meshStructure, blenderContext);
+				
+				//read animations
+				String objectName = objectStructure.getName();
+				Set<String> animationNames = blenderContext.getBlenderKey().getAnimationNames(objectName);
+				if (animationNames != null && animationNames.size() > 0) {
+					ArrayList<Animation> animations = new ArrayList<Animation>();
+					List<FileBlockHeader> actionHeaders = blenderContext.getFileBlocks(Integer.valueOf(FileBlockHeader.BLOCK_AC00));
+					for (FileBlockHeader header : actionHeaders) {
+						Structure actionStructure = header.getStructure(blenderContext);
+						String actionName = actionStructure.getName();
+						if (animationNames.contains(actionName)) {
+							int[] animationFrames = blenderContext.getBlenderKey().getAnimationFrames(objectName, actionName);
+							int fps = blenderContext.getBlenderKey().getFps();
+							float start = (float) animationFrames[0] / (float) fps;
+							float stop = (float) animationFrames[1] / (float) fps;
+							BoneAnimation boneAnimation = new BoneAnimation(actionName, stop - start);
+							boneAnimation.setTracks(armatureHelper.getTracks(actionStructure, blenderContext, objectName, actionName));
+							animations.add(boneAnimation);
+						}
 					}
+					animData = new AnimData(new Skeleton(bones), animations);
 				}
-				animData = new AnimData(new Skeleton(bones), animations);
 			}
 		}
 	}
@@ -134,6 +139,9 @@ import com.jme3.util.BufferUtils;
 	@Override
 	@SuppressWarnings("unchecked")
 	public Node apply(Node node, BlenderContext blenderContext) {
+		if(invalid) {
+			LOGGER.log(Level.WARNING, "Armature modifier is invalid! Cannot be applied to: {0}", node.getName());
+		}//if invalid, animData will be null
 		if(animData == null) {
 			return node;
 		}

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ArrayModifier.java

@@ -52,80 +52,86 @@ import com.jme3.scene.shape.Curve;
 	 *             corrupted
 	 */
 	@SuppressWarnings("unchecked")
-	public ArrayModifier(Structure modifier, BlenderContext blenderContext) throws BlenderFileException {
-        Number fittype = (Number) modifier.getFieldValue("fit_type");
-        modifierData.put("fittype", fittype);
-        switch (fittype.intValue()) {
-            case 0:// FIXED COUNT
-            	modifierData.put("count", modifier.getFieldValue("count"));
-                break;
-            case 1:// FIXED LENGTH
-            	modifierData.put("length", modifier.getFieldValue("length"));
-                break;
-            case 2:// FITCURVE
-                Pointer pCurveOb = (Pointer) modifier.getFieldValue("curve_ob");
-                float length = 0;
-                if (pCurveOb.isNotNull()) {
-                    Structure curveStructure = pCurveOb.fetchData(blenderContext.getInputStream()).get(0);
-                    ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
-                    Node curveObject = (Node) objectHelper.toObject(curveStructure, blenderContext);
-                    Set<Number> referencesToCurveLengths = new HashSet<Number>(curveObject.getChildren().size());
-                    for (Spatial spatial : curveObject.getChildren()) {
-                        if (spatial instanceof Geometry) {
-                            Mesh mesh = ((Geometry) spatial).getMesh();
-                            if (mesh instanceof Curve) {
-                                length += ((Curve) mesh).getLength();
-                            } else {
-                                //if bevel object has several parts then each mesh will have the same reference
-                                //to length value (and we should use only one)
-                                Number curveLength = spatial.getUserData("curveLength");
-                                if (curveLength != null && !referencesToCurveLengths.contains(curveLength)) {
-                                    length += curveLength.floatValue();
-                                    referencesToCurveLengths.add(curveLength);
-                                }
-                            }
-                        }
-                    }
-                }
-                modifierData.put("length", Float.valueOf(length));
-                modifierData.put("fittype", Integer.valueOf(1));// treat it like FIXED LENGTH
-                break;
-            default:
-                assert false : "Unknown array modifier fit type: " + fittype;
-        }
-
-        // offset parameters
-        int offsettype = ((Number) modifier.getFieldValue("offset_type")).intValue();
-        if ((offsettype & 0x01) != 0) {// Constant offset
-            DynamicArray<Number> offsetArray = (DynamicArray<Number>) modifier.getFieldValue("offset");
-            float[] offset = new float[]{offsetArray.get(0).floatValue(), offsetArray.get(1).floatValue(), offsetArray.get(2).floatValue()};
-            modifierData.put("offset", offset);
-        }
-        if ((offsettype & 0x02) != 0) {// Relative offset
-            DynamicArray<Number> scaleArray = (DynamicArray<Number>) modifier.getFieldValue("scale");
-            float[] scale = new float[]{scaleArray.get(0).floatValue(), scaleArray.get(1).floatValue(), scaleArray.get(2).floatValue()};
-            modifierData.put("scale", scale);
-        }
-        if ((offsettype & 0x04) != 0) {// Object offset
-            Pointer pOffsetObject = (Pointer) modifier.getFieldValue("offset_ob");
-            if (pOffsetObject.isNotNull()) {
-            	modifierData.put("offsetob", pOffsetObject);
-            }
-        }
-
-        // start cap and end cap
-        Pointer pStartCap = (Pointer) modifier.getFieldValue("start_cap");
-        if (pStartCap.isNotNull()) {
-        	modifierData.put("startcap", pStartCap);
-        }
-        Pointer pEndCap = (Pointer) modifier.getFieldValue("end_cap");
-        if (pEndCap.isNotNull()) {
-        	modifierData.put("endcap", pEndCap);
-        }
+	public ArrayModifier(Structure modifierStructure, BlenderContext blenderContext) throws BlenderFileException {
+		if(this.validate(modifierStructure, blenderContext)) {
+	        Number fittype = (Number) modifierStructure.getFieldValue("fit_type");
+	        modifierData.put("fittype", fittype);
+	        switch (fittype.intValue()) {
+	            case 0:// FIXED COUNT
+	            	modifierData.put("count", modifierStructure.getFieldValue("count"));
+	                break;
+	            case 1:// FIXED LENGTH
+	            	modifierData.put("length", modifierStructure.getFieldValue("length"));
+	                break;
+	            case 2:// FITCURVE
+	                Pointer pCurveOb = (Pointer) modifierStructure.getFieldValue("curve_ob");
+	                float length = 0;
+	                if (pCurveOb.isNotNull()) {
+	                    Structure curveStructure = pCurveOb.fetchData(blenderContext.getInputStream()).get(0);
+	                    ObjectHelper objectHelper = blenderContext.getHelper(ObjectHelper.class);
+	                    Node curveObject = (Node) objectHelper.toObject(curveStructure, blenderContext);
+	                    Set<Number> referencesToCurveLengths = new HashSet<Number>(curveObject.getChildren().size());
+	                    for (Spatial spatial : curveObject.getChildren()) {
+	                        if (spatial instanceof Geometry) {
+	                            Mesh mesh = ((Geometry) spatial).getMesh();
+	                            if (mesh instanceof Curve) {
+	                                length += ((Curve) mesh).getLength();
+	                            } else {
+	                                //if bevel object has several parts then each mesh will have the same reference
+	                                //to length value (and we should use only one)
+	                                Number curveLength = spatial.getUserData("curveLength");
+	                                if (curveLength != null && !referencesToCurveLengths.contains(curveLength)) {
+	                                    length += curveLength.floatValue();
+	                                    referencesToCurveLengths.add(curveLength);
+	                                }
+	                            }
+	                        }
+	                    }
+	                }
+	                modifierData.put("length", Float.valueOf(length));
+	                modifierData.put("fittype", Integer.valueOf(1));// treat it like FIXED LENGTH
+	                break;
+	            default:
+	                assert false : "Unknown array modifier fit type: " + fittype;
+	        }
+	
+	        // offset parameters
+	        int offsettype = ((Number) modifierStructure.getFieldValue("offset_type")).intValue();
+	        if ((offsettype & 0x01) != 0) {// Constant offset
+	            DynamicArray<Number> offsetArray = (DynamicArray<Number>) modifierStructure.getFieldValue("offset");
+	            float[] offset = new float[]{offsetArray.get(0).floatValue(), offsetArray.get(1).floatValue(), offsetArray.get(2).floatValue()};
+	            modifierData.put("offset", offset);
+	        }
+	        if ((offsettype & 0x02) != 0) {// Relative offset
+	            DynamicArray<Number> scaleArray = (DynamicArray<Number>) modifierStructure.getFieldValue("scale");
+	            float[] scale = new float[]{scaleArray.get(0).floatValue(), scaleArray.get(1).floatValue(), scaleArray.get(2).floatValue()};
+	            modifierData.put("scale", scale);
+	        }
+	        if ((offsettype & 0x04) != 0) {// Object offset
+	            Pointer pOffsetObject = (Pointer) modifierStructure.getFieldValue("offset_ob");
+	            if (pOffsetObject.isNotNull()) {
+	            	modifierData.put("offsetob", pOffsetObject);
+	            }
+	        }
+	
+	        // start cap and end cap
+	        Pointer pStartCap = (Pointer) modifierStructure.getFieldValue("start_cap");
+	        if (pStartCap.isNotNull()) {
+	        	modifierData.put("startcap", pStartCap);
+	        }
+	        Pointer pEndCap = (Pointer) modifierStructure.getFieldValue("end_cap");
+	        if (pEndCap.isNotNull()) {
+	        	modifierData.put("endcap", pEndCap);
+	        }
+		}
 	}
 	
 	@Override
 	public Node apply(Node node, BlenderContext blenderContext) {
+		if(invalid) {
+			LOGGER.log(Level.WARNING, "Array modifier is invalid! Cannot be applied to: {0}", node.getName());
+			return node;
+		}
         int fittype = ((Number) modifierData.get("fittype")).intValue();
         float[] offset = (float[]) modifierData.get("offset");
         if (offset == null) {// the node will be repeated several times in the same place

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/MirrorModifier.java

@@ -48,17 +48,24 @@ import com.jme3.scene.plugins.blender.objects.ObjectHelper;
 	 *             this exception is thrown when the blender file is somehow
 	 *             corrupted
 	 */
-	public MirrorModifier(Structure modifier, BlenderContext blenderContext) {
-		modifierData.put("flag", modifier.getFieldValue("flag"));
-		modifierData.put("tolerance", modifier.getFieldValue("tolerance"));
-        Pointer pMirrorOb = (Pointer) modifier.getFieldValue("mirror_ob");
-        if (pMirrorOb.isNotNull()) {
-        	modifierData.put("mirrorob", pMirrorOb);
-        }
+	public MirrorModifier(Structure modifierStructure, BlenderContext blenderContext) {
+		if(this.validate(modifierStructure, blenderContext)) {
+			modifierData.put("flag", modifierStructure.getFieldValue("flag"));
+			modifierData.put("tolerance", modifierStructure.getFieldValue("tolerance"));
+	        Pointer pMirrorOb = (Pointer) modifierStructure.getFieldValue("mirror_ob");
+	        if (pMirrorOb.isNotNull()) {
+	        	modifierData.put("mirrorob", pMirrorOb);
+	        }
+		}
 	}
 	
 	@Override
 	public Node apply(Node node, BlenderContext blenderContext) {
+		if(invalid) {
+			LOGGER.log(Level.WARNING, "Mirror modifier is invalid! Cannot be applied to: {0}", node.getName());
+			return node;
+		}
+		
         int flag = ((Number) modifierData.get("flag")).intValue();
         float[] mirrorFactor = new float[]{
             (flag & 0x08) != 0 ? -1.0f : 1.0f,

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/Modifier.java

@@ -2,6 +2,8 @@ package com.jme3.scene.plugins.blender.modifiers;
 
 import com.jme3.scene.Node;
 import com.jme3.scene.plugins.blender.BlenderContext;
+import com.jme3.scene.plugins.blender.file.Pointer;
+import com.jme3.scene.plugins.blender.file.Structure;
 
 /**
  * This class represents an object's modifier. The modifier object can be varied
@@ -19,6 +21,9 @@ public abstract class Modifier {
 	public static final String MIRROR_MODIFIER_DATA = "MirrorModifierData";
 	public static final String OBJECT_ANIMATION_MODIFIER_DATA = "ObjectAnimationModifierData";
 
+	/** This variable indicates if the modifier is invalid (<b>true</b>) or not (<b>false</b>). */
+	protected boolean invalid;
+	
 	/**
 	 * This method applies the modifier to the given node.
 	 * 
@@ -36,4 +41,11 @@ public abstract class Modifier {
 	 * @return blender's type of modifier
 	 */
 	public abstract String getType();
+	
+	protected boolean validate(Structure modifierStructure, BlenderContext blenderContext) {
+		Structure modifierData = (Structure)modifierStructure.getFieldValue("modifier");
+		Pointer pError = (Pointer) modifierData.getFieldValue("error");
+		invalid = pError.isNotNull();
+		return !invalid;
+	}
 }

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ObjectAnimationModifier.java

@@ -1,24 +1,11 @@
 package com.jme3.scene.plugins.blender.modifiers;
 
-import com.jme3.animation.Animation;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.logging.Logger;
 
-import com.jme3.animation.Bone;
-import com.jme3.animation.BoneAnimation;
-import com.jme3.animation.BoneTrack;
-import com.jme3.animation.Skeleton;
-import com.jme3.math.Transform;
 import com.jme3.scene.Node;
 import com.jme3.scene.plugins.blender.BlenderContext;
-import com.jme3.scene.plugins.blender.animations.Ipo;
-import com.jme3.scene.plugins.blender.animations.IpoHelper;
 import com.jme3.scene.plugins.blender.exceptions.BlenderFileException;
-import com.jme3.scene.plugins.blender.file.FileBlockHeader;
-import com.jme3.scene.plugins.blender.file.Pointer;
 import com.jme3.scene.plugins.blender.file.Structure;
-import com.jme3.scene.plugins.blender.objects.ObjectHelper;
 import com.jme3.scene.plugins.ogre.AnimData;
 
 /**
@@ -53,6 +40,8 @@ import com.jme3.scene.plugins.ogre.AnimData;
 	 *             corrupted
 	 */
 	public ObjectAnimationModifier(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException {
+		LOGGER.warning("Object animation modifier not yet implemented!");
+		/*
 		Pointer pIpo = (Pointer) objectStructure.getFieldValue("ipo");
 		if (pIpo.isNotNull()) {
 			// check if there is an action name connected with this ipo
@@ -105,12 +94,13 @@ import com.jme3.scene.plugins.ogre.AnimData;
 			animData = new AnimData(new Skeleton(new Bone[] { bone }), animations);
 			objectOMA = objectStructure.getOldMemoryAddress();
 		}
+		*/
 	}
 	
 	@Override
 	public Node apply(Node node, BlenderContext blenderContext) {
 		LOGGER.warning("Object animation modifier not yet implemented!");
-		return null;
+		return node;
 	}
 
 	@Override

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ParticlesModifier.java

@@ -2,6 +2,8 @@ package com.jme3.scene.plugins.blender.modifiers;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.jme3.effect.ParticleEmitter;
 import com.jme3.effect.shapes.EmitterMeshVertexShape;
@@ -24,13 +26,16 @@ import com.jme3.scene.plugins.blender.particles.ParticlesHelper;
  * @author Marcin Roguski (Kaelthas)
  */
 /* package */class ParticlesModifier extends Modifier {
+	private static final Logger LOGGER = Logger.getLogger(MirrorModifier.class.getName());
+	
+	/** Loaded particles emitter. */
 	private ParticleEmitter particleEmitter;
 	
 	/**
 	 * This constructor reads the particles system structure and stores it in
 	 * order to apply it later to the node.
 	 * 
-	 * @param modifier
+	 * @param modifierStructure
 	 *            the structure of the modifier
 	 * @param blenderContext
 	 *            the blender context
@@ -38,18 +43,24 @@ import com.jme3.scene.plugins.blender.particles.ParticlesHelper;
 	 *             an exception is throw wneh there are problems with the
 	 *             blender file
 	 */
-	public ParticlesModifier(Structure modifier, BlenderContext blenderContext)
-			throws BlenderFileException {
-		Pointer pParticleSystem = (Pointer) modifier.getFieldValue("psys");
-		if (pParticleSystem.isNotNull()) {
-			ParticlesHelper particlesHelper = blenderContext.getHelper(ParticlesHelper.class);
-			Structure particleSystem = pParticleSystem.fetchData(blenderContext.getInputStream()).get(0);
-			particleEmitter = particlesHelper.toParticleEmitter(particleSystem, blenderContext);
+	public ParticlesModifier(Structure modifierStructure, BlenderContext blenderContext) throws BlenderFileException {
+		if(this.validate(modifierStructure, blenderContext)) {
+			Pointer pParticleSystem = (Pointer) modifierStructure.getFieldValue("psys");
+			if (pParticleSystem.isNotNull()) {
+				ParticlesHelper particlesHelper = blenderContext.getHelper(ParticlesHelper.class);
+				Structure particleSystem = pParticleSystem.fetchData(blenderContext.getInputStream()).get(0);
+				particleEmitter = particlesHelper.toParticleEmitter(particleSystem, blenderContext);
+			}
 		}
 	}
 
 	@Override
 	public Node apply(Node node, BlenderContext blenderContext) {
+		if(invalid) {
+			LOGGER.log(Level.WARNING, "Particles modifier is invalid! Cannot be applied to: {0}", node.getName());
+			return node;
+		}
+		
 		MaterialHelper materialHelper = blenderContext.getHelper(MaterialHelper.class);
 		ParticleEmitter emitter = particleEmitter.clone();