diff --git a/src/android/mod.rs b/src/android/mod.rs index e0a33c48..2f6ffb18 100644 --- a/src/android/mod.rs +++ b/src/android/mod.rs @@ -39,9 +39,13 @@ impl MonitorID { } impl Window { - pub fn new(_builder: WindowBuilder) -> Result { + pub fn new(builder: WindowBuilder) -> Result { use std::{mem, ptr}; + if builder.sharing.is_some() { + unimplemented!() + } + let native_window = unsafe { android_glue::get_native_window() }; if native_window.is_null() { return Err(OsError(format!("Android's native window is null"))); diff --git a/src/lib.rs b/src/lib.rs index 7505580a..e389ff60 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -2,6 +2,7 @@ #![feature(unsafe_destructor)] #![feature(globs)] #![feature(phase)] +#![feature(if_let)] #![unstable] //! The purpose of this library is to provide an OpenGL context on as many @@ -86,7 +87,8 @@ impl std::error::Error for CreationError { /// Object that allows you to build windows. #[cfg(feature = "window")] -pub struct WindowBuilder { +pub struct WindowBuilder<'a> { + sharing: Option<&'a Window>, dimensions: Option<(uint, uint)>, title: String, monitor: Option, @@ -97,10 +99,11 @@ pub struct WindowBuilder { } #[cfg(feature = "window")] -impl WindowBuilder { +impl<'a> WindowBuilder<'a> { /// Initializes a new `WindowBuilder` with default values. - pub fn new() -> WindowBuilder { + pub fn new() -> WindowBuilder<'a> { WindowBuilder { + sharing: None, dimensions: None, title: "glutin window".to_string(), monitor: None, @@ -114,13 +117,13 @@ impl WindowBuilder { /// Requests the window to be of specific dimensions. /// /// Width and height are in pixels. - pub fn with_dimensions(mut self, width: uint, height: uint) -> WindowBuilder { + pub fn with_dimensions(mut self, width: uint, height: uint) -> WindowBuilder<'a> { self.dimensions = Some((width, height)); self } /// Requests a specific title for the window. - pub fn with_title(mut self, title: String) -> WindowBuilder { + pub fn with_title(mut self, title: String) -> WindowBuilder<'a> { self.title = title; self } @@ -128,17 +131,25 @@ impl WindowBuilder { /// Requests fullscreen mode. /// /// If you don't specify dimensions for the window, it will match the monitor's. - pub fn with_fullscreen(mut self, monitor: MonitorID) -> WindowBuilder { + pub fn with_fullscreen(mut self, monitor: MonitorID) -> WindowBuilder<'a> { let MonitorID(monitor) = monitor; self.monitor = Some(monitor); self } + /// The created window will share all its OpenGL objects with the window in the parameter. + /// + /// There are some exceptions, like FBOs or VAOs. See the OpenGL documentation. + pub fn with_shared_lists(mut self, other: &'a Window) -> WindowBuilder<'a> { + self.sharing = Some(other); + self + } + /// Requests to use a specific OpenGL version. /// /// Version is a (major, minor) pair. For example to request OpenGL 3.3 /// you would pass `(3, 3)`. - pub fn with_gl_version(mut self, version: (uint, uint)) -> WindowBuilder { + pub fn with_gl_version(mut self, version: (uint, uint)) -> WindowBuilder<'a> { self.gl_version = Some(version); self } @@ -147,19 +158,19 @@ impl WindowBuilder { /// /// The default value for this flag is `cfg!(ndebug)`, which means that it's enabled /// when you run `cargo build` and disabled when you run `cargo build --release`. - pub fn with_gl_debug_flag(mut self, flag: bool) -> WindowBuilder { + pub fn with_gl_debug_flag(mut self, flag: bool) -> WindowBuilder<'a> { self.gl_debug = flag; self } /// Requests that the window has vsync enabled. - pub fn with_vsync(mut self) -> WindowBuilder { + pub fn with_vsync(mut self) -> WindowBuilder<'a> { self.vsync = true; self } /// Sets whether the window will be initially hidden or visible. - pub fn with_visibility(mut self, visible: bool) -> WindowBuilder { + pub fn with_visibility(mut self, visible: bool) -> WindowBuilder<'a> { self.visible = visible; self } diff --git a/src/osx/mod.rs b/src/osx/mod.rs index 0b4a5080..7209aa48 100644 --- a/src/osx/mod.rs +++ b/src/osx/mod.rs @@ -71,6 +71,10 @@ impl Deref for HeadlessContext { #[cfg(feature = "window")] impl Window { pub fn new(builder: WindowBuilder) -> Result { + if builder.sharing.is_some() { + unimplemented!() + } + Window::new_impl(builder.dimensions, builder.title.as_slice(), builder.monitor, true) } } diff --git a/src/win32/init.rs b/src/win32/init.rs index 1f5be09c..29b45cb4 100644 --- a/src/win32/init.rs +++ b/src/win32/init.rs @@ -15,7 +15,8 @@ local_data_key!(WINDOW: (ffi::HWND, Sender)) pub fn new_window(builder_dimensions: Option<(uint, uint)>, builder_title: String, builder_monitor: Option, builder_gl_version: Option<(uint, uint)>, builder_debug: bool, - builder_vsync: bool, builder_hidden: bool) -> Result + builder_vsync: bool, builder_hidden: bool, + builder_sharelists: Option) -> Result { use std::mem; use std::os; @@ -305,10 +306,16 @@ pub fn new_window(builder_dimensions: Option<(uint, uint)>, builder_title: Strin let ctxt = unsafe { if extra_functions.CreateContextAttribsARB.is_loaded() { - extra_functions.CreateContextAttribsARB(hdc, ptr::null(), - attributes.as_slice().as_ptr()) + let share = if let Some(c) = builder_sharelists { c } else { ptr::null() }; + extra_functions.CreateContextAttribsARB(hdc, share, + attributes.as_slice().as_ptr()) + } else { - ffi::wgl::CreateContext(hdc) + let ctxt = ffi::wgl::CreateContext(hdc); + if let Some(c) = builder_sharelists { + ffi::wgl::ShareLists(c, ctxt); + }; + ctxt } }; diff --git a/src/win32/mod.rs b/src/win32/mod.rs index 4dad1eb3..ef2e3eab 100644 --- a/src/win32/mod.rs +++ b/src/win32/mod.rs @@ -25,8 +25,9 @@ impl HeadlessContext { /// See the docs in the crate root file. pub fn new(builder: HeadlessRendererBuilder) -> Result { let HeadlessRendererBuilder { dimensions, gl_version, gl_debug } = builder; - init::new_window(Some(dimensions), "".to_string(), None, gl_version, gl_debug, false, true) - .map(|w| HeadlessContext(w)) + init::new_window(Some(dimensions), "".to_string(), None, gl_version, gl_debug, false, true, + None) + .map(|w| HeadlessContext(w)) } /// See the docs in the crate root file. @@ -69,8 +70,9 @@ impl Window { /// See the docs in the crate root file. pub fn new(builder: WindowBuilder) -> Result { let WindowBuilder { dimensions, title, monitor, gl_version, - gl_debug, vsync, visible } = builder; - init::new_window(dimensions, title, monitor, gl_version, gl_debug, vsync, !visible) + gl_debug, vsync, visible, sharing } = builder; + init::new_window(dimensions, title, monitor, gl_version, gl_debug, vsync, + !visible, sharing.map(|w| w.window.context)) } } diff --git a/src/x11/window/mod.rs b/src/x11/window/mod.rs index dff33bf4..668cd038 100644 --- a/src/x11/window/mod.rs +++ b/src/x11/window/mod.rs @@ -248,11 +248,17 @@ impl Window { }) }); + let share = if let Some(win) = builder.sharing { + win.window.context + } else { + ptr::null() + }; + let context = if extra_functions.CreateContextAttribsARB.is_loaded() { extra_functions.CreateContextAttribsARB(display as *mut ffi::glx_extra::types::Display, - fb_config, ptr::null(), 1, attributes.as_ptr()) + fb_config, share, 1, attributes.as_ptr()) } else { - ffi::glx::CreateContext(display, &mut visual_infos, ptr::null(), 1) + ffi::glx::CreateContext(display, &mut visual_infos, share, 1) }; if context.is_null() {