Don't warp the mouse when a video mode hasn't been set

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40596
This commit is contained in:
Sam Lantinga 2003-02-07 05:47:15 +00:00
parent 582b9152ff
commit b1b661bc3f

View file

@ -295,6 +295,11 @@ void SDL_WarpMouse (Uint16 x, Uint16 y)
SDL_VideoDevice *video = current_video;
SDL_VideoDevice *this = current_video;
if ( !video || !SDL_PublicSurface ) {
SDL_SetError("A video mode must be set before warping mouse");
return;
}
/* If we have an offset video mode, offset the mouse coordinates */
x += (this->screen->offset % this->screen->pitch) /
this->screen->format->BytesPerPixel;