new function to get aiVectorKey size

port/jassimp/jassimp-native/src/jassimp.cpp

@@ -1340,6 +1340,14 @@ static bool loadCameras(JNIEnv *env, const aiScene* cScene, jobject& jScene)
 }
 
 
+JNIEXPORT jint JNICALL Java_jassimp_Jassimp_getVKeysize
+  (JNIEnv *env, jclass jClazz)
+{
+	const int res = sizeof(aiVectorKey);
+
+	return res;
+}
+
 JNIEXPORT jstring JNICALL Java_jassimp_Jassimp_getErrorString
   (JNIEnv *env, jclass jClazz)
 {

port/jassimp/jassimp/src/jassimp/AiNodeAnim.java

@@ -70,7 +70,7 @@ public final class AiNodeAnim {
     /**
      * Size of one position key entry.
      */
-    private static final int POS_KEY_SIZE = 20;
+    private static final int POS_KEY_SIZE = Jassimp.getVKeysize();
     
     /**
      * Size of one rotation key entry.
@@ -80,7 +80,7 @@ public final class AiNodeAnim {
     /**
      * Size of one scaling key entry.
      */
-    private static final int SCALE_KEY_SIZE = 20;
+    private static final int SCALE_KEY_SIZE = Jassimp.getVKeysize();
     
     
     /**

port/jassimp/jassimp/src/jassimp/Jassimp.java

@@ -96,6 +96,13 @@ public final class Jassimp {
     }
     
     
+    /**
+     * Returns the size of a struct.<p>
+     * 
+     * @return the result of sizeof call
+     */
+    public static native int getVKeysize();
+
     /**
      * Returns a human readable error description.<p>
      *