added method to delete texture data

include/ACGL/Animations/Animation.hh

@@ -27,8 +27,8 @@ public:
 
     Animation() :
         mInited(false),
-        mStopped(false) {};
-    virtual ~Animation() {};
+        mStopped(false) {}
+    virtual ~Animation() {}
 
     virtual void init() = 0;
     virtual long update(uint_t msec) = 0;

include/ACGL/OpenGL/Data/TextureData.hh

@@ -101,6 +101,9 @@ public:
     void setPadding(GLsizei _padding){ paddingBytesPerRow = _padding; }
     void setSize  (const glm::uvec3 &_size) { width  = _size.x; height = _size.y; depth = _size.z; }
 
+    //! deletes the data attached to this object
+    void deleteData() { delete[] pData; pData = NULL; }
+
     // ========================================================================================================= \/
     // ================================================================================================== FIELDS \/
     // ========================================================================================================= \/