diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/win32/init.rs | 93 | ||||
| -rw-r--r-- | src/win32/mod.rs | 76 |
2 files changed, 87 insertions, 82 deletions
diff --git a/src/win32/init.rs b/src/win32/init.rs index 23bb364..f842028 100644 --- a/src/win32/init.rs +++ b/src/win32/init.rs @@ -3,9 +3,12 @@ use std::ptr; use std::mem; use std::os; use std::thread; + use super::callback; use super::Window; use super::MonitorID; +use super::ContextWrapper; +use super::WindowWrapper; use Api; use BuilderAttribs; @@ -116,37 +119,32 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, if handle.is_null() { return Err(OsError(format!("CreateWindowEx function failed: {}", - os::error_string(os::errno())))); + os::error_string(os::errno())))); } - handle - }; - - // getting the HDC of the dummy window - let dummy_hdc = { - let hdc = user32::GetDC(dummy_window); + let hdc = user32::GetDC(handle); if hdc.is_null() { let err = Err(OsError(format!("GetDC function failed: {}", - os::error_string(os::errno())))); - user32::DestroyWindow(dummy_window); + os::error_string(os::errno())))); return err; } - hdc + + WindowWrapper(handle, hdc) }; // getting the pixel format that we will use and setting it { - let formats = enumerate_native_pixel_formats(dummy_hdc); + let formats = enumerate_native_pixel_formats(&dummy_window); let (id, _) = builder.choose_pixel_format(formats.into_iter().map(|(a, b)| (b, a))); - try!(set_pixel_format(dummy_hdc, id)); + try!(set_pixel_format(&dummy_window, id)); } // creating the dummy OpenGL context - let dummy_context = try!(create_context(None, dummy_hdc, None)); + let dummy_context = try!(create_context(None, &dummy_window, None)); // making context current - gl::wgl::MakeCurrent(dummy_hdc as *const libc::c_void, - dummy_context as *const libc::c_void); + gl::wgl::MakeCurrent(dummy_window.1 as *const libc::c_void, + dummy_context.0 as *const libc::c_void); // loading the extra WGL functions let extra_functions = gl::wgl_extra::Wgl::load_with(|addr| { @@ -161,10 +159,6 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, // removing current context gl::wgl::MakeCurrent(ptr::null(), ptr::null()); - // destroying the context and the window - gl::wgl::DeleteContext(dummy_context as *const libc::c_void); - user32::DestroyWindow(dummy_window); - // returning the address extra_functions }; @@ -197,39 +191,34 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, os::error_string(os::errno())))); } - handle - }; - - // getting the HDC of the window - let hdc = { - let hdc = user32::GetDC(real_window); + let hdc = user32::GetDC(handle); if hdc.is_null() { - let err = Err(OsError(format!("GetDC function failed: {}", - os::error_string(os::errno())))); - user32::DestroyWindow(real_window); - return err; + return Err(OsError(format!("GetDC function failed: {}", + os::error_string(os::errno())))); } - hdc + + WindowWrapper(handle, hdc) }; // calling SetPixelFormat { let formats = if extra_functions.GetPixelFormatAttribivARB.is_loaded() { - enumerate_arb_pixel_formats(&extra_functions, hdc) + enumerate_arb_pixel_formats(&extra_functions, &real_window) } else { - enumerate_native_pixel_formats(hdc) + enumerate_native_pixel_formats(&real_window) }; let (id, _) = builder.choose_pixel_format(formats.into_iter().map(|(a, b)| (b, a))); - try!(set_pixel_format(hdc, id)); + try!(set_pixel_format(&real_window, id)); } // creating the OpenGL context - let context = try!(create_context(Some((&extra_functions, &builder)), hdc, builder_sharelists)); + let context = try!(create_context(Some((&extra_functions, &builder)), &real_window, + builder_sharelists)); // calling SetForegroundWindow if fullscreen if builder.monitor.is_some() { - user32::SetForegroundWindow(real_window); + user32::SetForegroundWindow(real_window.0); } // filling the WINDOW task-local storage @@ -237,7 +226,7 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, let (tx, rx) = channel(); let mut tx = Some(tx); callback::WINDOW.with(|window| { - (*window.borrow_mut()) = Some((real_window, tx.take().unwrap())); + (*window.borrow_mut()) = Some((real_window.0, tx.take().unwrap())); }); rx }; @@ -248,10 +237,9 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, // handling vsync if builder.vsync { if extra_functions.SwapIntervalEXT.is_loaded() { - gl::wgl::MakeCurrent(hdc as *const libc::c_void, context as *const libc::c_void); + gl::wgl::MakeCurrent(real_window.1 as *const libc::c_void, + context.0 as *const libc::c_void); if extra_functions.SwapIntervalEXT(1) == 0 { - gl::wgl::DeleteContext(context as *const libc::c_void); - user32::DestroyWindow(real_window); return Err(OsError(format!("wglSwapIntervalEXT failed"))); } @@ -264,7 +252,6 @@ unsafe fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, // building the struct Ok(Window { window: real_window, - hdc: hdc as winapi::HDC, context: context, gl_library: gl_library, events_receiver: events_receiver, @@ -332,8 +319,8 @@ unsafe fn switch_to_fullscreen(rect: &mut winapi::RECT, monitor: &MonitorID) } unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'static>)>, - hdc: winapi::HDC, share: Option<winapi::HGLRC>) - -> Result<winapi::HGLRC, CreationError> + hdc: &WindowWrapper, share: Option<winapi::HGLRC>) + -> Result<ContextWrapper, CreationError> { let share = share.unwrap_or(ptr::null_mut()); @@ -365,7 +352,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st attributes.push(0); - Some(extra_functions.CreateContextAttribsARB(hdc as *const libc::c_void, + Some(extra_functions.CreateContextAttribsARB(hdc.1 as *const libc::c_void, share as *const libc::c_void, attributes.as_slice().as_ptr())) @@ -379,7 +366,7 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st let ctxt = match ctxt { Some(ctxt) => ctxt, None => { - let ctxt = gl::wgl::CreateContext(hdc as *const libc::c_void); + let ctxt = gl::wgl::CreateContext(hdc.1 as *const libc::c_void); if !ctxt.is_null() && !share.is_null() { gl::wgl::ShareLists(share as *const libc::c_void, ctxt); }; @@ -392,19 +379,19 @@ unsafe fn create_context(extra: Option<(&gl::wgl_extra::Wgl, &BuilderAttribs<'st os::error_string(os::errno())))); } - Ok(ctxt as winapi::HGLRC) + Ok(ContextWrapper(ctxt as winapi::HGLRC)) } -unsafe fn enumerate_native_pixel_formats(hdc: winapi::HDC) -> Vec<(PixelFormat, libc::c_int)> { +unsafe fn enumerate_native_pixel_formats(hdc: &WindowWrapper) -> Vec<(PixelFormat, libc::c_int)> { let size_of_pxfmtdescr = mem::size_of::<winapi::PIXELFORMATDESCRIPTOR>() as u32; - let num = gdi32::DescribePixelFormat(hdc, 1, size_of_pxfmtdescr, ptr::null_mut()); + let num = gdi32::DescribePixelFormat(hdc.1, 1, size_of_pxfmtdescr, ptr::null_mut()); let mut result = Vec::new(); for index in (0 .. num) { let mut output: winapi::PIXELFORMATDESCRIPTOR = mem::zeroed(); - if gdi32::DescribePixelFormat(hdc, index, size_of_pxfmtdescr, &mut output) == 0 { + if gdi32::DescribePixelFormat(hdc.1, index, size_of_pxfmtdescr, &mut output) == 0 { continue; } @@ -438,12 +425,12 @@ unsafe fn enumerate_native_pixel_formats(hdc: winapi::HDC) -> Vec<(PixelFormat, result } -unsafe fn enumerate_arb_pixel_formats(extra: &gl::wgl_extra::Wgl, hdc: winapi::HDC) +unsafe fn enumerate_arb_pixel_formats(extra: &gl::wgl_extra::Wgl, hdc: &WindowWrapper) -> Vec<(PixelFormat, libc::c_int)> { let get_info = |index: u32, attrib: u32| { let mut value = mem::uninitialized(); - extra.GetPixelFormatAttribivARB(hdc as *const libc::c_void, index as libc::c_int, + extra.GetPixelFormatAttribivARB(hdc.1 as *const libc::c_void, index as libc::c_int, 0, 1, [attrib as libc::c_int].as_ptr(), &mut value); value as u32 @@ -489,17 +476,17 @@ unsafe fn enumerate_arb_pixel_formats(extra: &gl::wgl_extra::Wgl, hdc: winapi::H result } -unsafe fn set_pixel_format(hdc: winapi::HDC, id: libc::c_int) -> Result<(), CreationError> { +unsafe fn set_pixel_format(hdc: &WindowWrapper, id: libc::c_int) -> Result<(), CreationError> { let mut output: winapi::PIXELFORMATDESCRIPTOR = mem::zeroed(); - if gdi32::DescribePixelFormat(hdc, id, mem::size_of::<winapi::PIXELFORMATDESCRIPTOR>() + if gdi32::DescribePixelFormat(hdc.1, id, mem::size_of::<winapi::PIXELFORMATDESCRIPTOR>() as winapi::UINT, &mut output) == 0 { return Err(OsError(format!("DescribePixelFormat function failed: {}", os::error_string(os::errno())))); } - if gdi32::SetPixelFormat(hdc, id, &output) == 0 { + if gdi32::SetPixelFormat(hdc.1, id, &output) == 0 { return Err(OsError(format!("SetPixelFormat function failed: {}", os::error_string(os::errno())))); } diff --git a/src/win32/mod.rs b/src/win32/mod.rs index 5af2691..4e6a803 100644 --- a/src/win32/mod.rs +++ b/src/win32/mod.rs @@ -26,13 +26,10 @@ mod monitor; /// The Win32 implementation of the main `Window` object. pub struct Window { /// Main handle for the window. - window: winapi::HWND, - - /// This represents a "draw context" for the surface of the window. - hdc: winapi::HDC, + window: WindowWrapper, /// OpenGL context. - context: winapi::HGLRC, + context: ContextWrapper, /// Binded to `opengl32.dll`. /// @@ -50,12 +47,25 @@ pub struct Window { unsafe impl Send for Window {} unsafe impl Sync for Window {} -impl Window { - /// See the docs in the crate root file. - pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> { - let (builder, sharing) = builder.extract_non_static(); - let sharing = sharing.map(|w| init::ContextHack(w.context)); - init::new_window(builder, sharing) +/// A simple wrapper that destroys the context when it is destroyed. +struct ContextWrapper(pub winapi::HGLRC); + +impl Drop for ContextWrapper { + fn drop(&mut self) { + unsafe { + gl::wgl::DeleteContext(self.0 as *const libc::c_void); + } + } +} + +/// A simple wrapper that destroys the window when it is destroyed. +struct WindowWrapper(pub winapi::HWND, pub winapi::HDC); + +impl Drop for WindowWrapper { + fn drop(&mut self) { + unsafe { + user32::DestroyWindow(self.0); + } } } @@ -70,6 +80,13 @@ impl WindowProxy { impl Window { /// See the docs in the crate root file. + pub fn new(builder: BuilderAttribs) -> Result<Window, CreationError> { + let (builder, sharing) = builder.extract_non_static(); + let sharing = sharing.map(|w| init::ContextHack(w.context.0)); + init::new_window(builder, sharing) + } + + /// See the docs in the crate root file. pub fn is_closed(&self) -> bool { use std::sync::atomic::Ordering::Relaxed; self.is_closed.load(Relaxed) @@ -80,7 +97,7 @@ impl Window { /// Calls SetWindowText on the HWND. pub fn set_title(&self, text: &str) { unsafe { - user32::SetWindowTextW(self.window, + user32::SetWindowTextW(self.window.0, text.utf16_units().chain(Some(0).into_iter()) .collect::<Vec<u16>>().as_ptr() as winapi::LPCWSTR); } @@ -88,13 +105,13 @@ impl Window { pub fn show(&self) { unsafe { - user32::ShowWindow(self.window, winapi::SW_SHOW); + user32::ShowWindow(self.window.0, winapi::SW_SHOW); } } pub fn hide(&self) { unsafe { - user32::ShowWindow(self.window, winapi::SW_HIDE); + user32::ShowWindow(self.window.0, winapi::SW_HIDE); } } @@ -105,7 +122,7 @@ impl Window { let mut placement: winapi::WINDOWPLACEMENT = unsafe { mem::zeroed() }; placement.length = mem::size_of::<winapi::WINDOWPLACEMENT>() as winapi::UINT; - if unsafe { user32::GetWindowPlacement(self.window, &mut placement) } == 0 { + if unsafe { user32::GetWindowPlacement(self.window.0, &mut placement) } == 0 { return None } @@ -118,9 +135,9 @@ impl Window { use libc; unsafe { - user32::SetWindowPos(self.window, ptr::null_mut(), x as libc::c_int, y as libc::c_int, + user32::SetWindowPos(self.window.0, ptr::null_mut(), x as libc::c_int, y as libc::c_int, 0, 0, winapi::SWP_NOZORDER | winapi::SWP_NOSIZE); - user32::UpdateWindow(self.window); + user32::UpdateWindow(self.window.0); } } @@ -129,7 +146,7 @@ impl Window { use std::mem; let mut rect: winapi::RECT = unsafe { mem::uninitialized() }; - if unsafe { user32::GetClientRect(self.window, &mut rect) } == 0 { + if unsafe { user32::GetClientRect(self.window.0, &mut rect) } == 0 { return None } @@ -144,7 +161,7 @@ impl Window { use std::mem; let mut rect: winapi::RECT = unsafe { mem::uninitialized() }; - if unsafe { user32::GetWindowRect(self.window, &mut rect) } == 0 { + if unsafe { user32::GetWindowRect(self.window.0, &mut rect) } == 0 { return None } @@ -159,9 +176,9 @@ impl Window { use libc; unsafe { - user32::SetWindowPos(self.window, ptr::null_mut(), 0, 0, x as libc::c_int, + user32::SetWindowPos(self.window.0, ptr::null_mut(), 0, 0, x as libc::c_int, y as libc::c_int, winapi::SWP_NOZORDER | winapi::SWP_NOREPOSITION); - user32::UpdateWindow(self.window); + user32::UpdateWindow(self.window.0); } } @@ -186,7 +203,8 @@ impl Window { /// See the docs in the crate root file. pub unsafe fn make_current(&self) { // TODO: check return value - gl::wgl::MakeCurrent(self.hdc as *const libc::c_void, self.context as *const libc::c_void); + gl::wgl::MakeCurrent(self.window.1 as *const libc::c_void, + self.context.0 as *const libc::c_void); } /// See the docs in the crate root file. @@ -204,7 +222,7 @@ impl Window { /// See the docs in the crate root file. pub fn swap_buffers(&self) { unsafe { - gdi32::SwapBuffers(self.hdc); + gdi32::SwapBuffers(self.window.1); } } @@ -213,7 +231,7 @@ impl Window { } pub fn platform_window(&self) -> *mut libc::c_void { - self.window as *mut libc::c_void + self.window.0 as *mut libc::c_void } /// See the docs in the crate root file. @@ -280,10 +298,10 @@ impl<'a> Iterator for WaitEventsIterator<'a> { #[unsafe_destructor] impl Drop for Window { fn drop(&mut self) { - // we don't call MakeCurrent(0, 0) because we are not sure that the context - // is still the current one - unsafe { user32::PostMessageW(self.window, winapi::WM_DESTROY, 0, 0); } - unsafe { gl::wgl::DeleteContext(self.context as *const libc::c_void); } - unsafe { user32::DestroyWindow(self.window); } + unsafe { + // we don't call MakeCurrent(0, 0) because we are not sure that the context + // is still the current one + user32::PostMessageW(self.window.0, winapi::WM_DESTROY, 0, 0); + } } } |