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* Creating a Desktop can fail, in which case the app_server should not return B_OK,

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and an invalid desktop message port...
* Desktop::Init() now checks if VirtualScreen::fHWInterface is valid, and exits
  if not. This can happen if you don't have a graphics driver, and turn on on-screen
  debug mode in the boot loader (such that you already see the messages from the
  boot loader).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24371 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-03-12 18:01:32 +00:00
parent ce099c4a14
commit 092c62f0f1
2 changed files with 11 additions and 2 deletions
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8
src/servers/app/AppServer.cpp
View File

@ -188,8 +188,12 @@ AppServer::_DispatchMessage(int32 code, BPrivate::LinkReceiver& msg)
}
BPrivate::LinkSender reply(replyPort);
reply.StartMessage(B_OK);
reply.Attach<port_id>(desktop->MessagePort());
if (desktop != NULL) {
reply.StartMessage(B_OK);
reply.Attach<port_id>(desktop->MessagePort());
} else
reply.StartMessage(B_ERROR);
reply.Flush();
break;
}

5
src/servers/app/Desktop.cpp
View File

@ -385,6 +385,11 @@ Desktop::Init()
// TODO: temporary workaround, fActiveScreen will be removed
fActiveScreen = fVirtualScreen.ScreenAt(0);
if (fVirtualScreen.HWInterface() == NULL) {
debug_printf("Could not initialize graphics output. Exiting.\n");
return B_ERROR;
}
fVirtualScreen.HWInterface()->MoveCursorTo(fVirtualScreen.Frame().Width() / 2,
fVirtualScreen.Frame().Height() / 2);