diff options
Diffstat (limited to 'src/win32')
| -rw-r--r-- | src/win32/init.rs | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/src/win32/init.rs b/src/win32/init.rs index 09d5878..b458d95 100644 --- a/src/win32/init.rs +++ b/src/win32/init.rs @@ -37,16 +37,15 @@ pub fn new_window(builder: BuilderAttribs<'static>, builder_sharelists: Option<C { // initializing variables to be sent to the task let title = builder.title.as_slice().utf16_units() - .chain(Some(0).into_iter()).collect::<Vec<u16>>(); // title to utf16 - //let hints = hints.clone(); + .chain(Some(0).into_iter()).collect::<Vec<u16>>(); // title to utf16 + let (tx, rx) = channel(); - // GetMessage must be called in the same thread as CreateWindow, - // so we create a new thread dedicated to this window. - // This is the only safe method. Using `nosend` wouldn't work for non-native runtime. + // `GetMessage` must be called in the same thread as CreateWindow, so we create a new thread + // dedicated to this window. thread::spawn(move || { unsafe { - // sending + // creating and sending the `Window` match init(title, builder, builder_sharelists) { Ok(w) => tx.send(Ok(w)).ok(), Err(e) => { @@ -65,7 +64,7 @@ pub fn new_window(builder: BuilderAttribs<'static>, builder_sharelists: Option<C } user32::TranslateMessage(&msg); - user32::DispatchMessageW(&msg); // calls `callback` (see below) + user32::DispatchMessageW(&msg); // calls `callback` (see the callback module) } } }); @@ -106,9 +105,10 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, // adjusting the window coordinates using the style user32::AdjustWindowRectEx(&mut rect, style, 0, ex_style); - // getting the address of wglCreateContextAttribsARB + // the first step is to create a dummy window and a dummy context which we will use + // to load the pointers to some functions in the OpenGL driver in `extra_functions` let extra_functions = { - // creating a dummy invisible window for GL initialization + // creating a dummy invisible window let dummy_window = { let handle = user32::CreateWindowExW(ex_style, class_name.as_ptr(), title.as_ptr() as winapi::LPCWSTR, @@ -140,10 +140,8 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, try!(set_pixel_format(&dummy_window, id)); } - // creating the dummy OpenGL context + // creating the dummy OpenGL context and making it current let dummy_context = try!(create_context(None, &dummy_window, None)); - - // making context current let current_context = try!(CurrentContextGuard::make_current(&dummy_window, &dummy_context)); @@ -158,7 +156,7 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, }) }; - // creating the real window this time + // creating the real window this time, by using the functions in `extra_functions` let real_window = { let (width, height) = if builder.monitor.is_some() || builder.dimensions.is_some() { (Some(rect.right - rect.left), Some(rect.bottom - rect.top)) @@ -216,7 +214,7 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, user32::SetForegroundWindow(real_window.0); } - // filling the WINDOW task-local storage + // filling the WINDOW task-local storage so that we can start receiving events let events_receiver = { let (tx, rx) = channel(); let mut tx = Some(tx); |