index 29a81b01e0a38102289a515cf5500aa2156530ef..31c5b1cde5c4147282cd52211f24446cd9a47e12 100644 (file)
(* --------- Graphics --------- *)
+ function LoadGL: Boolean;
+ begin
+ result := true;
+ {$IFDEF NOGL_INIT}
+ nogl_Init;
+ if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
+ {$ELSE}
+ if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then
+ {$ENDIF}
+ begin
+ e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
+ glRenderToFBO := false;
+ end;
+ end;
+
+ procedure FreeGL;
+ begin
+ {$IFDEF NOGL_INIT}
+ nogl_Quit();
+ {$ENDIF}
+ end;
+
procedure UpdateSize (w, h: Integer);
begin
gWinSizeX := w;
context := SDL_GL_CreateContext(window);
if context <> nil then
begin
- {$IFDEF NOGL_INIT}
- nogl_Init;
- if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
- {$ELSE}
- if glRenderToFBO and (not Load_GL_ARB_framebuffer_object()) then
- {$ENDIF}
+ if not LoadGL then
begin
- e_LogWriteln('SDL: no framebuffer object support detected');
- glRenderToFBO := False
+ e_LogWriteln('GL: unable to load OpenGL functions', TMsgType.Fatal);
+ SDL_GL_DeleteContext(context); context := nil;
+ exit;
end;
if (fullscreen = false) and (maximized = false) and (wc = false) then
begin
e_WriteLog('Releasing SDL2', TMsgType.Notify);
if context <> nil then
begin
- {$IFDEF NOGL_INIT}
- nogl_Quit;
- {$ENDIF}
+ FreeGL;
SDL_GL_DeleteContext(context);
context := nil;
end;