X-Git-Url: https://deadsoftware.ru/gitweb?a=blobdiff_plain;f=src%2Fgame%2Fsdl%2Fg_system.pas;h=7593b02398811605b2981aed31267e8760e8a20c;hb=c3750b33c7c32ef74637ae0f6be98974af391ab9;hp=a4cbe649a3f7b4fcb39f7d908365e366776c9903;hpb=14771a7395dda16d199b88c71d975d840c7e5b14;p=d2df-sdl.git

diff --git a/src/game/sdl/g_system.pas b/src/game/sdl/g_system.pas
index a4cbe64..7593b02 100644
--- a/src/game/sdl/g_system.pas
+++ b/src/game/sdl/g_system.pas
@@ -70,6 +70,28 @@ implementation
 
   (* --------- 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();
+    {$ENDIF}
+  end;
+
   procedure UpdateSize (w, h: Integer);
   begin
     gWinSizeX := w;
@@ -125,15 +147,10 @@ implementation
       screen := SDL_SetVideoMode(w, h, bpp, flags);
       if screen <> nil then
       begin
-        {$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;
@@ -497,9 +514,7 @@ implementation
       RemoveJoystick(i);
     if screen <> nil then
     begin
-      {$IFDEF NOGL_INIT}
-        nogl_Quit;
-      {$ENDIF}
+      FreeGL;
       SDL_FreeSurface(screen)
     end;
     SDL_Quit