-- ----------------------------------------------------------------- -- -- AdaSDL -- -- Binding to Simple Direct Media Layer -- -- Copyright (C) 2001 A.M.F.Vargas -- -- Antonio M. F. Vargas -- -- Ponta Delgada - Azores - Portugal -- -- E-mail: avargas@adapower.net -- -- ----------------------------------------------------------------- -- -- -- -- This library is free software; you can redistribute it and/or -- -- modify it under the terms of the GNU General Public -- -- License as published by the Free Software Foundation; either -- -- version 2 of the License, or (at your option) any later version. -- -- -- -- This library is distributed in the hope that it will be useful, -- -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -- -- General Public License for more details. -- -- -- -- You should have received a copy of the GNU General Public -- -- License along with this library; if not, write to the -- -- Free Software Foundation, Inc., 59 Temple Place - Suite 330, -- -- Boston, MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from -- -- this unit, or you link this unit with other files to produce an -- -- executable, this unit does not by itself cause the resulting -- -- executable to be covered by the GNU General Public License. This -- -- exception does not however invalidate any other reasons why the -- -- executable file might be covered by the GNU Public License. -- -- ----------------------------------------------------------------- -- -- **************************************************************** -- -- This is an Ada binding to SDL - Simple DirectMedia Layer from -- -- Sam Lantinga - www.libsld.org -- -- **************************************************************** -- -- In order to help the Ada programmer, the comments in this file -- -- are, in great extent, a direct copy of the original text in the -- -- SDL header files. -- -- **************************************************************** -- with Lib_C; package body SDL.Video is use type CS.chars_ptr; ------------- -- LoadBMP -- ------------- function LoadBMP (file : C.Strings.chars_ptr) return Surface_ptr is begin return LoadBMP_RW ( src => SDL.RWops.RWFromFile ( file => file, mode => C.Strings.New_String ("rb")), freesrc => 1); end LoadBMP; -- =================================================================== function LoadBMP (file : String) return Surface_ptr is begin return LoadBMP_RW ( src => SDL.RWops.RWFromFile ( file => C.Strings.New_String (file), mode => C.Strings.New_String ("rb")), freesrc => 1); end LoadBMP; ------------- -- SaveBMP -- ------------- function SaveBMP (surface : Surface_ptr; file : C.Strings.chars_ptr) return C.int is begin return SaveBMP_RW ( surface => surface, dst => SDL.RWops.RWFromFile ( file => file, mode => C.Strings.New_String ("wb")), freedst => 1); end SaveBMP; -------------- -- MUSTLOCK -- -------------- function MUSTLOCK (surface : Surface_ptr) return Boolean is begin return (surface.offset /= 0 or ((surface.flags and (HWSURFACE or ASYNCBLIT or RLEACCEL)) /= 0)); end MUSTLOCK; -- ====================================== procedure Disable_Clipping (surface : Surface_ptr) is begin SetClipRect (surface, null); end Disable_Clipping; -- ====================================== procedure Update_Rect ( screen : Surface_ptr; the_rect : Rect) is begin UpdateRect (screen, Sint32 (the_rect.x), Sint32 (the_rect.y), Uint32 (the_rect.w), Uint32 (the_rect.h)); end Update_Rect; -- ====================================== procedure WM_Set_Caption ( title : in String; icon : in String) is begin WM_SetCaption (CS.New_String (title), CS.New_String (icon)); end WM_Set_Caption; -- ====================================== procedure WM_Set_Caption_Title (title : in String) is begin WM_SetCaption (CS.New_String (title), CS.Null_Ptr); end WM_Set_Caption_Title; -- ====================================== procedure WM_Set_Caption_Icon (icon : in String) is begin WM_SetCaption (CS.Null_Ptr, CS.New_String (icon)); end WM_Set_Caption_Icon; -- ====================================== procedure WM_Get_Caption ( title : out US.Unbounded_String; icon : out US.Unbounded_String) is the_title : aliased CS.chars_ptr := CS.Null_Ptr; the_icon : aliased CS.chars_ptr := CS.Null_Ptr; begin WM_GetCaption (the_title'Unchecked_Access, the_icon'Unchecked_Access); if the_title /= CS.Null_Ptr then title := US.To_Unbounded_String (CS.Value (the_title)); else title := US.Null_Unbounded_String; end if; if the_icon /= CS.Null_Ptr then icon := US.To_Unbounded_String (CS.Value (the_icon)); else icon := US.Null_Unbounded_String; end if; end WM_Get_Caption; -- ====================================== procedure WM_Get_Caption_Title (title : out US.Unbounded_String) is the_title : aliased CS.chars_ptr := CS.Null_Ptr; begin WM_GetCaption (the_title'Unchecked_Access, null); if the_title /= CS.Null_Ptr then title := US.To_Unbounded_String (CS.Value (the_title)); else title := US.Null_Unbounded_String; end if; end WM_Get_Caption_Title; -- ====================================== procedure WM_Get_Caption_Icon (icon : out US.Unbounded_String) is the_icon : aliased CS.chars_ptr := CS.Null_Ptr; begin WM_GetCaption (null, the_icon'Unchecked_Access); if the_icon /= CS.Null_Ptr then icon := US.To_Unbounded_String (CS.Value (the_icon)); else icon := US.Null_Unbounded_String; end if; end WM_Get_Caption_Icon; end SDL.Video;