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Diffstat (limited to 'src/fltk-widgets-groups-windows-opengl.ads')
| -rw-r--r-- | src/fltk-widgets-groups-windows-opengl.ads | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/fltk-widgets-groups-windows-opengl.ads b/src/fltk-widgets-groups-windows-opengl.ads new file mode 100644 index 0000000..8d76884 --- /dev/null +++ b/src/fltk-widgets-groups-windows-opengl.ads @@ -0,0 +1,252 @@ + + +with + + System; + +private with + + Interfaces.C; + + +package FLTK.Widgets.Groups.Windows.OpenGL is + + + ------------- + -- Types -- + ------------- + + type GL_Window is new Window with private; + + type GL_Window_Reference (Data : not null access GL_Window'Class) is + limited null record with Implicit_Dereference => Data; + + -- RGB mode is achieved by Index being set to False + -- Single buffer mode is achieved by Double being set to False + type Mode_Mask is record + Index : Boolean := False; + Double : Boolean := False; + Accum : Boolean := False; + Alpha : Boolean := False; + Depth : Boolean := False; + Stencil : Boolean := False; + RGB8 : Boolean := False; + Multisample : Boolean := False; + Stereo : Boolean := False; + Fake_Single : Boolean := False; + OpenGL3 : Boolean := False; + end record; + + + + + -------------------- + -- Constructors -- + -------------------- + + package Forge is + + function Create + (X, Y, W, H : in Integer; + Text : in String := "") + return GL_Window; + + function Create + (W, H : in Integer; + Text : in String := "") + return GL_Window; + + end Forge; + + + + + --------------- + -- Display -- + --------------- + + procedure Show + (This : in out GL_Window); + + procedure Hide + (This : in out GL_Window); + + procedure Hide_Overlay + (This : in out GL_Window); + + procedure Flush + (This : in out GL_Window); + + + + + ------------------ + -- Dimensions -- + ------------------ + + function Pixel_H + (This : in GL_Window) + return Integer; + + function Pixel_W + (This : in GL_Window) + return Integer; + + function Pixels_Per_Unit + (This : in GL_Window) + return Float; + + + + + -------------------- + -- OpenGL Modes -- + -------------------- + + function Get_Mode + (This : in GL_Window) + return Mode_Mask; + + procedure Set_Mode + (This : in out GL_Window; + Mask : in Mode_Mask); + + function Can_Do + (Mask : in Mode_Mask) + return Boolean; + + function Can_Do + (This : in GL_Window) + return Boolean; + + function Can_Do_Overlay + (This : in GL_Window) + return Boolean; + + + + + ----------------------- + -- OpenGL Contexts -- + ----------------------- + + function Get_Context + (This : in GL_Window) + return System.Address; + + procedure Set_Context + (This : in out GL_Window; + Struct : in System.Address; + Destroy : in Boolean := False); + + function Get_Context_Valid + (This : in GL_Window) + return Boolean; + + procedure Set_Context_Valid + (This : in out GL_Window; + Value : in Boolean); + + function Get_Valid + (This : in GL_Window) + return Boolean; + + procedure Set_Valid + (This : in out GL_Window; + Value : in Boolean); + + procedure Make_Current + (This : in out GL_Window); + + procedure Make_Overlay_Current + (This : in out GL_Window); + + + + + ---------------------------------- + -- Drawing and Event Handling -- + ---------------------------------- + + procedure Ortho + (This : in out GL_Window); + + procedure Redraw_Overlay + (This : in out GL_Window); + + procedure Swap_Buffers + (This : in out GL_Window); + + procedure Draw + (This : in out GL_Window); + + function Handle + (This : in out GL_Window; + Event : in Event_Kind) + return Event_Outcome; + + +private + + + type GL_Window is new Window with null record; + + overriding procedure Finalize + (This : in out GL_Window); + + + for Mode_Mask use record + Index at 0 range 0 .. 0; + Double at 0 range 1 .. 1; + Accum at 0 range 2 .. 2; + Alpha at 0 range 3 .. 3; + Depth at 0 range 4 .. 4; + Stencil at 0 range 5 .. 5; + RGB8 at 0 range 6 .. 6; + Multisample at 0 range 7 .. 7; + Stereo at 0 range 8 .. 8; + Fake_Single at 0 range 9 .. 9; + OpenGL3 at 0 range 10 .. Interfaces.C.unsigned'Size - 1; + end record; + + for Mode_Mask'Size use Interfaces.C.unsigned'Size; + + pragma Convention (C_Pass_By_Copy, Mode_Mask); + + + pragma Inline (Show); + pragma Inline (Hide); + pragma Inline (Hide_Overlay); + pragma Inline (Flush); + + + pragma Inline (Pixel_H); + pragma Inline (Pixel_W); + pragma Inline (Pixels_Per_Unit); + + + pragma Inline (Get_Mode); + pragma Inline (Set_Mode); + pragma Inline (Can_Do); + pragma Inline (Can_Do_Overlay); + + + pragma Inline (Get_Context); + pragma Inline (Set_Context); + pragma Inline (Get_Context_Valid); + pragma Inline (Set_Context_Valid); + pragma Inline (Get_Valid); + pragma Inline (Set_Valid); + pragma Inline (Make_Current); + pragma Inline (Make_Overlay_Current); + + + pragma Inline (Ortho); + pragma Inline (Redraw_Overlay); + pragma Inline (Swap_Buffers); + pragma Inline (Draw); + pragma Inline (Handle); + + +end FLTK.Widgets.Groups.Windows.OpenGL; + |