Added method setTexSubImage2D within Texture.hh in order to support glTexSubImage2D.

include/ACGL/OpenGL/Objects/Texture.hh

@@ -223,6 +223,27 @@ public:
             mType,
             _pData);
     }
+
+    //! Set data for specific area within the texture
+    inline void setTexSubImage2D(
+            const GLvoid* _pData,
+            int _x,
+            int _y,
+            int _width,
+            int _height)
+    {
+        bind();
+        glTexSubImage2D(
+            mTarget,
+            0,
+            _x,
+            _y,
+            _width,
+            _height,
+            mFormat,
+            mType(),
+            _pData);
+    }
     
     //! Generate mipmaps from the current base texture (i.e. the texture from level 0).
     void generateMipmaps(void) const