5 files changed, 7 insertions, 13 deletions
diff --git a/src/libjin/Graphics/Drawable.cpp b/src/libjin/Graphics/Drawable.cpp
index fec0575..acdb6e1 100644
--- a/src/libjin/Graphics/Drawable.cpp
+++ b/src/libjin/Graphics/Drawable.cpp
@@ -36,8 +36,6 @@ namespace graphics
         static jin::math::Matrix t;
         t.setTransformation(x, y, r, sx, sy, anchor.x, anchor.y);
 
-        glEnable(GL_TEXTURE_2D);
-
         glBindTexture(GL_TEXTURE_2D, texture);
         
         // push modle matrix
@@ -57,8 +55,6 @@ namespace graphics
 
         // bind texture to default screen 
         glBindTexture(GL_TEXTURE_2D, 0);
-
-        glDisable(GL_TEXTURE_2D);
     }
 
 } // render
diff --git a/src/libjin/Graphics/Font.cpp b/src/libjin/Graphics/Font.cpp
index 3bdc5ca..1d88280 100644
--- a/src/libjin/Graphics/Font.cpp
+++ b/src/libjin/Graphics/Font.cpp
@@ -78,7 +78,6 @@ namespace graphics
 
         int len = strlen(text);
 
-        glEnable(GL_TEXTURE_2D);
         glBindTexture(GL_TEXTURE_2D, texture); 
 
         glEnableClientState(GL_VERTEX_ARRAY);
@@ -146,7 +145,6 @@ namespace graphics
         glDisableClientState(GL_VERTEX_ARRAY);
 
         glBindTexture(GL_TEXTURE_2D, 0); 
-        glDisable(GL_TEXTURE_2D);
     }
 
     void Font::box(const char* text, int fontHeight, int spacing, int lineHeight, int* w, int * h)
diff --git a/src/libjin/Graphics/Shapes.cpp b/src/libjin/Graphics/Shapes.cpp
index 4601375..f4c5093 100644
--- a/src/libjin/Graphics/Shapes.cpp
+++ b/src/libjin/Graphics/Shapes.cpp
@@ -32,7 +32,6 @@ namespace graphics
 
     void line(int x1, int y1, int x2, int y2)
     {
-        glDisable(GL_TEXTURE_2D);
         float verts[] = {
             x1, y1,
             x2, y2
diff --git a/src/libjin/Graphics/Window.cpp b/src/libjin/Graphics/Window.cpp
index e5f32ba..8d42bbf 100644
--- a/src/libjin/Graphics/Window.cpp
+++ b/src/libjin/Graphics/Window.cpp
@@ -67,15 +67,16 @@ namespace graphics
             return false;
         SDL_GL_SetSwapInterval(vsync ? 1 : 0);
         SDL_GL_MakeCurrent(wnd, ctx);
+        /* default configuration */
         glClearColor(0.f, 0.f, 0.f, 1.f);
-        glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
         glColor4f(1, 1, 1, 1);
-
         glEnable(GL_BLEND);
+        glEnable(GL_TEXTURE_2D);
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-        Canvas::unbind();
+        /* avoid white screen blink on windows */
         swapBuffers();
+        /* bind to default canvas */
+        Canvas::unbind();
         return true; 
     }
 
@@ -85,7 +86,7 @@ namespace graphics
         SDL_Quit();
     }
 
-    inline void Window::swapBuffers()
+    void Window::swapBuffers()
     {
         if (wnd)
             SDL_GL_SwapWindow(wnd);
diff --git a/src/libjin/Graphics/Window.h b/src/libjin/Graphics/Window.h
index ebd776e..6b247a6 100644
--- a/src/libjin/Graphics/Window.h
+++ b/src/libjin/Graphics/Window.h
@@ -31,7 +31,7 @@ namespace graphics
         inline int getW(){ return size.w; }
         inline int getH(){ return size.h; }
         inline int getFPS(){ return fps; }
-        inline void swapBuffers();
+        void swapBuffers();
 
     private:
         SINGLETON(Window);