From 0fd34d3535b652157771fbeb6642dedf0dcb5602 Mon Sep 17 00:00:00 2001
From: "Kae..pl" <Kaelthas_Spellsinger@o2.pl>
Date: Tue, 28 Aug 2012 10:06:22 +0000
Subject: [PATCH] Ignoring textures when their UV coordinates type is not
 supported. This will prevent from unexpected exceptions to occur.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9690 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
---
 .../blender/textures/CombinedTexture.java     | 29 +++++++++-------
 .../textures/UVCoordinatesGenerator.java      | 33 +++++++++++++++++++
 2 files changed, 51 insertions(+), 11 deletions(-)

diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/textures/CombinedTexture.java b/engine/src/blender/com/jme3/scene/plugins/blender/textures/CombinedTexture.java
index 8cf718a29..eedd5f19c 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/textures/CombinedTexture.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/textures/CombinedTexture.java
@@ -7,6 +7,7 @@ import java.awt.image.BufferedImage;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.logging.Logger;
 
 import jme3tools.converters.ImageToAwt;
 
@@ -39,6 +40,8 @@ import com.jme3.texture.Texture2D;
  * @author Marcin Roguski (Kaelthas)
  */
 public class CombinedTexture {
+	private static final Logger LOGGER = Logger.getLogger(CombinedTexture.class.getName());
+	
 	/** The mapping type of the texture. Defined bu MaterialContext.MTEX_COL, MTEX_NOR etc. */
 	private final int mappingType;
 	/** The data for each of the textures. */
@@ -81,17 +84,21 @@ public class CombinedTexture {
 		if (!(texture instanceof GeneratedTexture) && !(texture instanceof Texture2D)) {
 			throw new IllegalArgumentException("Unsupported texture type: " + (texture == null ? "null" : texture.getClass()));
 		}
-		TextureData textureData = new TextureData();
-		textureData.texture = texture;
-		textureData.textureBlender = textureBlender;
-		textureData.uvCoordinatesType = UVCoordinatesType.valueOf(uvCoordinatesType);
-		textureData.projectionType = UVProjectionType.valueOf(projectionType);
-		textureData.textureStructure = textureStructure;
-
-		if (this.isWithoutAlpha(textureData, blenderContext)) {
-			textureDatas.clear();// clear previous textures, they will be covered anyway
-		}
-		textureDatas.add(textureData);
+		if(UVCoordinatesGenerator.isTextureCoordinateTypeSupported(UVCoordinatesType.valueOf(uvCoordinatesType))) {
+			TextureData textureData = new TextureData();
+			textureData.texture = texture;
+			textureData.textureBlender = textureBlender;
+			textureData.uvCoordinatesType = UVCoordinatesType.valueOf(uvCoordinatesType);
+			textureData.projectionType = UVProjectionType.valueOf(projectionType);
+			textureData.textureStructure = textureStructure;
+
+			if (this.isWithoutAlpha(textureData, blenderContext)) {
+				textureDatas.clear();// clear previous textures, they will be covered anyway
+			}
+			textureDatas.add(textureData);
+		} else {
+			LOGGER.warning("The texture coordinates type is not supported: " + UVCoordinatesType.valueOf(uvCoordinatesType) + ". The texture '" + textureStructure.getName() + "'.");
+		}		
 	}
 
 	/**
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/textures/UVCoordinatesGenerator.java b/engine/src/blender/com/jme3/scene/plugins/blender/textures/UVCoordinatesGenerator.java
index c054ee078..d922466d7 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/textures/UVCoordinatesGenerator.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/textures/UVCoordinatesGenerator.java
@@ -236,6 +236,39 @@ public class UVCoordinatesGenerator {
 		}
 		return result;
 	}
+	
+	/**
+	 * This method should be used to determine if the texture will ever be
+	 * computed. If the texture coordinates are not supported then the try of
+	 * flattening the texture might result in runtime exceptions occurence.
+	 * 
+	 * @param texco
+	 *            the texture coordinates type
+	 * @return <b>true</b> if the type is supported and false otherwise
+	 */
+	public static boolean isTextureCoordinateTypeSupported(UVCoordinatesType texco) {
+		switch (texco) {
+			case TEXCO_ORCO:
+			case TEXCO_UV:
+			case TEXCO_NORM:
+				return true;
+			case TEXCO_REFL:
+			case TEXCO_GLOB:
+			case TEXCO_TANGENT:
+			case TEXCO_STRESS:
+			case TEXCO_LAVECTOR:
+			case TEXCO_OBJECT:
+			case TEXCO_OSA:
+			case TEXCO_PARTICLE_OR_STRAND:
+			case TEXCO_SPEED:
+			case TEXCO_STICKY:
+			case TEXCO_VIEW:
+			case TEXCO_WINDOW:
+				return false;
+			default:
+				throw new IllegalStateException("Unknown texture coordinates value: " + texco);
+		}
+	}
 
 	/**
 	 * This method returns the bounding box of the given geometries.