* Natives are now extracted to user.home based on hash of classpath and last modified of jMonkeyEngine3.jar

* Fixed crash in BloomFilter when screen size is 1x1

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8471 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/desktop-fx/com/jme3/post/filters/BloomFilter.java

@@ -111,8 +111,8 @@ public class BloomFilter extends Filter {
 
     @Override
     protected void initFilter(AssetManager manager, RenderManager renderManager, ViewPort vp, int w, int h) {
-        screenWidth = (int) (w / downSamplingFactor);
-        screenHeight = (int) (h / downSamplingFactor);
+        screenWidth = (int) Math.max(1, (w / downSamplingFactor));
+        screenHeight = (int) Math.max(1, (h / downSamplingFactor));
         //    System.out.println(screenWidth + " " + screenHeight);
         if (glowMode != GlowMode.Scene) {
             preGlowPass = new Pass();

engine/src/desktop/com/jme3/system/JmeSystem.java

@@ -37,6 +37,7 @@ import com.jme3.asset.AssetManager;
 import com.jme3.asset.AssetNotFoundException;
 import com.jme3.asset.DesktopAssetManager;
 import com.jme3.audio.AudioRenderer;
+import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
@@ -51,6 +52,33 @@ public class JmeSystem {
     private static final Logger logger = Logger.getLogger(JmeSystem.class.getName());
     private static boolean initialized = false;
     private static boolean lowPermissions = false;
+    private static File storageFolder = null;
+    
+    public static synchronized File getStorageFolder(){
+        if (lowPermissions){
+            throw new UnsupportedOperationException("File system access restricted");
+        }
+        if (storageFolder == null){
+            // Initialize storage folder
+            storageFolder = new File(System.getProperty("user.home"), ".jme3");
+            if (!storageFolder.exists()){
+                storageFolder.mkdir();
+            }
+        }
+        return storageFolder;
+    }
+    
+    public static String getFullName() {
+        return JmeVersion.FULL_NAME;
+    }
+    
+    public static InputStream getResourceAsStream(String name) {
+        return JmeSystem.class.getResourceAsStream(name);
+    }
+
+    public static URL getResource(String name) {
+        return JmeSystem.class.getResource(name);
+    }
 
     public static boolean trackDirectMemory() {
         return false;
@@ -77,7 +105,6 @@ public class JmeSystem {
             throw new IllegalStateException("Cannot run from EDT");
         }
 
-
         final AppSettings settings = new AppSettings(false);
         settings.copyFrom(sourceSettings);
         String iconPath = sourceSettings.getSettingsDialogImage();
@@ -317,7 +344,6 @@ public class JmeSystem {
         }
         logger.log(Level.INFO, "Running on {0}", getFullName());
 
-
         if (!lowPermissions) {
             try {
                 Natives.extractNativeLibs(getPlatform(), settings);
@@ -326,16 +352,4 @@ public class JmeSystem {
             }
         }
     }
-
-    public static String getFullName() {
-        return "jMonkeyEngine 3.0.0 Beta";
-    }
-
-    public static InputStream getResourceAsStream(String name) {
-        return JmeSystem.class.getResourceAsStream(name);
-    }
-
-    public static URL getResource(String name) {
-        return JmeSystem.class.getResource(name);
-    }
 }

engine/src/desktop/com/jme3/system/Natives.java

@@ -51,10 +51,50 @@ public class Natives {
 
     private static final Logger logger = Logger.getLogger(Natives.class.getName());
     private static final byte[] buf = new byte[1024];
-    private static File workingDir = new File("").getAbsoluteFile();
+    private static File extractionDirOverride = null;
+    private static File extractionDir = null;
  
     public static void setExtractionDir(String name) {
-        workingDir = new File(name).getAbsoluteFile();
+        extractionDirOverride = new File(name).getAbsoluteFile();
+    }
+    
+    public static File getExtractionDir(){
+        if (extractionDirOverride != null){
+            return extractionDirOverride;
+        }
+        if (extractionDir == null){
+            extractionDir = new File(JmeSystem.getStorageFolder(), 
+                                     "natives_" + Integer.toHexString(computeNativesHash()) );
+            if (!extractionDir.exists()){
+                extractionDir.mkdir();
+            }
+        }
+        return extractionDir;
+    }
+
+    private static int computeNativesHash(){
+        try {
+            String classpath = System.getProperty("java.class.path");
+            URL url = Natives.class.getResource("");
+            if (url != null) {
+                StringBuilder sb = new StringBuilder(url.toString());
+                if (sb.indexOf("jar:") == 0) {
+                    sb.delete(0, 4);
+                    sb.delete(sb.indexOf("!"), sb.length());
+                    sb.delete(sb.lastIndexOf("/") + 1, sb.length());
+                }
+                try {
+                    url = new URL(sb.toString());
+                } catch (MalformedURLException ex) {
+                    throw new UnsupportedOperationException(ex);
+                }
+            }
+            URLConnection conn = url.openConnection();
+            int hash = classpath.hashCode() ^ (int)conn.getLastModified();
+            return hash;
+        } catch (IOException ex) {
+            throw new UnsupportedOperationException(ex);
+        }
     }
     
     protected static void extractNativeLib(String sysName, String name) throws IOException {
@@ -81,7 +121,7 @@ public class Natives {
         
         URLConnection conn = url.openConnection();
         InputStream in = conn.getInputStream();
-        File targetFile = new File(workingDir, fullname);
+        File targetFile = new File(getExtractionDir(), fullname);
         
         try {
             if (targetFile.exists()){
@@ -123,24 +163,6 @@ public class Natives {
         logger.log(Level.FINE, "Copied {0} to {1}", new Object[]{fullname, targetFile});
     }
 
-    private static String getExtractionDir() {
-        URL temp = Natives.class.getResource("");
-        if (temp != null) {
-            StringBuilder sb = new StringBuilder(temp.toString());
-            if (sb.indexOf("jar:") == 0) {
-                sb.delete(0, 4);
-                sb.delete(sb.indexOf("!"), sb.length());
-                sb.delete(sb.lastIndexOf("/") + 1, sb.length());
-            }
-            try {
-                return new URL(sb.toString()).toString();
-            } catch (MalformedURLException ex) {
-                return null;
-            }
-        }
-        return null;
-    }
-    
     protected static boolean isUsingNativeBullet(){
         try {
             Class clazz = Class.forName("com.jme3.bullet.util.NativeMeshUtil");
@@ -171,14 +193,11 @@ public class Natives {
         needJInput = settings.useJoysticks();
 
         if (needLWJGL) {
-            logger.log(Level.INFO, "Extraction Directory #1: {0}", getExtractionDir());
-            logger.log(Level.INFO, "Extraction Directory #2: {0}", workingDir.toString());
-            logger.log(Level.INFO, "Extraction Directory #3: {0}", System.getProperty("user.dir"));
+            logger.log(Level.INFO, "Extraction Directory: {0}", getExtractionDir().toString());
+            
             // LWJGL supports this feature where
             // it can load libraries from this path.
-            // This is a fallback method in case the OS doesn't load
-            // native libraries from the working directory (e.g Linux).
-            System.setProperty("org.lwjgl.librarypath", workingDir.toString());
+            System.setProperty("org.lwjgl.librarypath", getExtractionDir().toString());
         }
 
         switch (platform) {