Start of 2D Drawing

 

// --- Draw General (bits REDRAW_MASK_GENERAL) ---

If the Flag_Redraw contain one of the bits in REDRAW_MASK_GENERAL

          Call Draw() for all modules that registered that bit

                    

// --- Loop for all windows ---

for all 2D windows that are "on" and need a redraw

 

          Erase cursor with Draw_Cursor() if there is one

 

          // --- Draw the Window portion (bits REDRAW_MASK_WINDOW) ---

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_WINDOW

                    Call Draw() for all modules that registered that bit

 

          If there's no loaded images draw the splash screen

 

          If the Flag_Redraw contain any OpenGL bits

                    Prepare the OpenGL Context

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_BACK_GRND

                    Clear the window's background

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_XOR_CLEAR

                    Call Draw() for all modules that registered that bit

 

          // --- Draw the Open GL portion ---

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_DB_OPENGL

                    for all the structures in the DB, call the Draw_OpenGL callback

                    reset that bit in the DB

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_DLL_OPENGL

                    Call Draw() for all modules that registered that bit

 

          // --- Draw the Stencil portion ---

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_DB_STENCIL

                    for all the structures in the DB, call the Draw_Stencil callback

                    reset that bit in the DB

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_DLL_STENCIL

                    Call Draw() for all modules that registered that bit

 

          // --- Draw the frames Highlights ---

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_HIGHLIGHT

                    for all the structures in the DB, call the Draw_Highlight callback

                    reset that bit in the DB

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_XOR_DRAW

                    Call Draw() for all modules that registered that bit

 

          // --- any "final" redraw ---

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_FINAL

                    Call Draw() for all modules that registered that bit

 

          If the Flag_Redraw contain any OpenGL bits

                    Exit the OpenGL Context

 

          If the Flag_Redraw contain one of the bits in REDRAW_MASK_CURSOR

                    Draw the cursor with Draw_Cursor()

 

          Reset all redraw flags in the window's structure

 

Reset all "Redraw Region" in the DB

 

 

End of 2D Drawing