Fix issue #138

Texture arrays not supporting compressed formats
Also fixed loading texture arrays with mipmaps

jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/TextureUtil.java

@@ -305,6 +305,18 @@ class TextureUtil {
                                            mipDepth,
                                            border,
                                            data);
+                } else if (target == GL_TEXTURE_2D_ARRAY_EXT) {
+                    // Upload compressed texture array slice
+                    glCompressedTexSubImage3D(target, 
+                                              i, 
+                                              0, 
+                                              0, 
+                                              index, 
+                                              mipWidth, 
+                                              mipHeight, 
+                                              1, 
+                                              glFmt.internalFormat, 
+                                              data);
                 }else{
                     //all other targets use 2D: array, cubemap, 2d
                     glCompressedTexImage2D(target,
@@ -347,8 +359,8 @@ class TextureUtil {
                                         0, // xoffset
                                         0, // yoffset
                                         index, // zoffset
-                                        width, // width
-                                        height, // height
+                                        mipWidth, // width
+                                        mipHeight, // height
                                         1, // depth
                                         glFmt.format,
                                         glFmt.dataType,