9 files changed, 13 insertions, 13 deletions
diff --git a/src/libjin/Audio/SDL/SDLSource.h b/src/libjin/Audio/SDL/SDLSource.h
index 9a3dd9b..dd792c7 100644
--- a/src/libjin/Audio/SDL/SDLSource.h
+++ b/src/libjin/Audio/SDL/SDLSource.h
@@ -45,7 +45,7 @@ namespace audio
         inline void handle(SDLSourceManager* manager, SDLSourceCommand* cmd);
         inline void process(void* buffer, size_t size);
 
-    private:
+    protected:
 
         SDLSource();
 
diff --git a/src/libjin/Graphics/Canvas.h b/src/libjin/Graphics/Canvas.h
index bccb3f6..0d5635e 100644
--- a/src/libjin/Graphics/Canvas.h
+++ b/src/libjin/Graphics/Canvas.h
@@ -22,7 +22,7 @@ namespace graphics
 
         static bool hasbind(GLint fbo); 
 
-    private:
+    protected:
 
         Canvas(int w, int h);
 
diff --git a/src/libjin/Graphics/JSL.h b/src/libjin/Graphics/JSL.h
index 3872802..df942fd 100644
--- a/src/libjin/Graphics/JSL.h
+++ b/src/libjin/Graphics/JSL.h
@@ -22,7 +22,7 @@ namespace graphics
 
         static JSLProgram* createJSLProgram(const char* program);
 
-        ~JSLProgram();
+        virtual ~JSLProgram();
 
         inline void JSLProgram::use()
         {
@@ -49,7 +49,7 @@ namespace graphics
             return currentJSLProgram;
         }
 
-    private:
+    protected:
 
         JSLProgram(const char* program);
 
diff --git a/src/libjin/Thread/Thread.cpp b/src/libjin/Thread/Thread.cpp
index 064d3db..2be44a1 100644
--- a/src/libjin/Thread/Thread.cpp
+++ b/src/libjin/Thread/Thread.cpp
@@ -253,7 +253,7 @@ namespace thread
             mutex->unlock();
     }
 
-    void Thread::send(int slot, Variant value)
+    void Thread::send(int slot, const Variant& value)
     {
         lock(); 
         common->set(slot, value);
diff --git a/src/libjin/Thread/Thread.h b/src/libjin/Thread/Thread.h
index 37c978d..5b74f23 100644
--- a/src/libjin/Thread/Thread.h
+++ b/src/libjin/Thread/Thread.h
@@ -102,7 +102,7 @@ namespace thread
         ~Thread();
         bool start();
         void wait();
-        void send(int slot, Variant value);
+        void send(int slot, const Variant& value);
         bool receive(int slot);
         Variant fetch(int slot);
         Variant demand(int slot);
@@ -112,7 +112,7 @@ namespace thread
         void lock();
         void unlock();
 
-    private:
+    protected:
     #if JIN_THREAD_SDL 
         SDL_Thread* handle;         // SDL thread
     #elif JIN_THREAD_CPP 
diff --git a/src/libjin/Thread/thread.cpp b/src/libjin/Thread/thread.cpp
index 064d3db..2be44a1 100644
--- a/src/libjin/Thread/thread.cpp
+++ b/src/libjin/Thread/thread.cpp
@@ -253,7 +253,7 @@ namespace thread
             mutex->unlock();
     }
 
-    void Thread::send(int slot, Variant value)
+    void Thread::send(int slot, const Variant& value)
     {
         lock(); 
         common->set(slot, value);
diff --git a/src/libjin/Thread/thread.h b/src/libjin/Thread/thread.h
index 37c978d..5b74f23 100644
--- a/src/libjin/Thread/thread.h
+++ b/src/libjin/Thread/thread.h
@@ -102,7 +102,7 @@ namespace thread
         ~Thread();
         bool start();
         void wait();
-        void send(int slot, Variant value);
+        void send(int slot, const Variant& value);
         bool receive(int slot);
         Variant fetch(int slot);
         Variant demand(int slot);
@@ -112,7 +112,7 @@ namespace thread
         void lock();
         void unlock();
 
-    private:
+    protected:
     #if JIN_THREAD_SDL 
         SDL_Thread* handle;         // SDL thread
     #elif JIN_THREAD_CPP 
diff --git a/src/libjin/thread/thread.cpp b/src/libjin/thread/thread.cpp
index 064d3db..2be44a1 100644
--- a/src/libjin/thread/thread.cpp
+++ b/src/libjin/thread/thread.cpp
@@ -253,7 +253,7 @@ namespace thread
             mutex->unlock();
     }
 
-    void Thread::send(int slot, Variant value)
+    void Thread::send(int slot, const Variant& value)
     {
         lock(); 
         common->set(slot, value);
diff --git a/src/libjin/thread/thread.h b/src/libjin/thread/thread.h
index 37c978d..5b74f23 100644
--- a/src/libjin/thread/thread.h
+++ b/src/libjin/thread/thread.h
@@ -102,7 +102,7 @@ namespace thread
         ~Thread();
         bool start();
         void wait();
-        void send(int slot, Variant value);
+        void send(int slot, const Variant& value);
         bool receive(int slot);
         Variant fetch(int slot);
         Variant demand(int slot);
@@ -112,7 +112,7 @@ namespace thread
         void lock();
         void unlock();
 
-    private:
+    protected:
     #if JIN_THREAD_SDL 
         SDL_Thread* handle;         // SDL thread
     #elif JIN_THREAD_CPP