index a4cbe649a3f7b4fcb39f7d908365e366776c9903..c53a7b347596c44c4331497c94c7ee3a2cb524b0 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();
+ {$ENDIF}
+ end;
+
procedure UpdateSize (w, h: Integer);
begin
gWinSizeX := w;
// store real window size in gWinSize, downscale resolution now
w := round(w / r_pixel_scale);
h := round(h / r_pixel_scale);
- e_ResizeFramebuffer(w, h);
+ if not e_ResizeFramebuffer(w, h) then
+ begin
+ e_LogWriteln('GL: could not create framebuffer, falling back to --no-fbo');
+ glRenderToFBO := False;
+ w := gWinSizeX;
+ h := gWinSizeY;
+ end;
end;
gScreenWidth := w;
gScreenHeight := h;
screen := SDL_SetVideoMode(w, h, bpp, flags);
if screen <> nil then
begin
- {$IFDEF NOGL_INIT}
- nogl_Init;
- if (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) and glRenderToFBO then
- {$ELSE}
- if (not Load_GL_ARB_framebuffer_object()) and glRenderToFBO then
- {$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);
+ exit;
end;
SDL_WM_SetCaption(GetTitle(), nil);
gFullScreen := fullscreen;
procedure sys_Repaint;
begin
- if glRenderToFBO then
- e_BlitFramebuffer(gWinSizeX, gWinSizeY);
SDL_GL_SwapBuffers
end;
RemoveJoystick(i);
if screen <> nil then
begin
- {$IFDEF NOGL_INIT}
- nogl_Quit;
- {$ENDIF}
+ FreeGL;
SDL_FreeSurface(screen)
end;
SDL_Quit