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Merge pull request #274 from tomaka/cleanup

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Cleanup crate root by moving headless and window to modules
This commit is contained in:
tomaka 2015-02-16 13:58:29 +01:00
parent 495898ad98 009be2ab2b
commit 40591806dc
3 changed files with 586 additions and 589 deletions
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99
src/headless.rs Normal file
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@ -0,0 +1,99 @@
use Api;
use BuilderAttribs;
use CreationError;
use gl_common;
use libc;
use winimpl;
/// Object that allows you to build headless contexts.
pub struct HeadlessRendererBuilder {
attribs: BuilderAttribs<'static>,
}
impl HeadlessRendererBuilder {
/// Initializes a new `HeadlessRendererBuilder` with default values.
pub fn new(width: u32, height: u32) -> HeadlessRendererBuilder {
HeadlessRendererBuilder {
attribs: BuilderAttribs {
headless: true,
dimensions: Some((width, height)),
.. BuilderAttribs::new()
},
}
}
/// 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: (u32, u32)) -> HeadlessRendererBuilder {
self.attribs.gl_version = Some(version);
self
}
/// Sets the *debug* flag for the OpenGL context.
///
/// 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) -> HeadlessRendererBuilder {
self.attribs.gl_debug = flag;
self
}
/// Builds the headless context.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
pub fn build(self) -> Result<HeadlessContext, CreationError> {
winimpl::HeadlessContext::new(self.attribs).map(|w| HeadlessContext { context: w })
}
/// Builds the headless context.
///
/// The context is build in a *strict* way. That means that if the backend couldn't give
/// you what you requested, an `Err` will be returned.
pub fn build_strict(mut self) -> Result<HeadlessContext, CreationError> {
self.attribs.strict = true;
self.build()
}
}
/// Represents a headless OpenGL context.
pub struct HeadlessContext {
context: winimpl::HeadlessContext,
}
impl HeadlessContext {
/// Creates a new OpenGL context
/// Sets the context as the current context.
#[inline]
pub unsafe fn make_current(&self) {
self.context.make_current()
}
/// Returns the address of an OpenGL function.
///
/// Contrary to `wglGetProcAddress`, all available OpenGL functions return an address.
#[inline]
pub fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
self.context.get_proc_address(addr) as *const libc::c_void
}
/// Returns the API that is currently provided by this window.
///
/// See `Window::get_api` for more infos.
pub fn get_api(&self) -> Api {
self.context.get_api()
}
pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
}
}
impl gl_common::GlFunctionsSource for HeadlessContext {
fn get_proc_addr(&self, addr: &str) -> *const libc::c_void {
self.get_proc_address(addr)
}
}

598
src/lib.rs
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@ -46,9 +46,12 @@ extern crate core_foundation;
extern crate core_graphics; extern crate core_graphics;
pub use events::*; pub use events::*;
#[cfg(feature = "headless")]
use std::default::Default; pub use headless::{HeadlessRendererBuilder, HeadlessContext};
use std::collections::ring_buf::IntoIter as RingBufIter; #[cfg(feature = "window")]
pub use window::{WindowBuilder, Window, WindowProxy, PollEventsIterator, WaitEventsIterator};
#[cfg(feature = "window")]
pub use window::{AvailableMonitorsIter, MonitorID, get_available_monitors, get_primary_monitor};
#[cfg(all(not(target_os = "windows"), not(target_os = "linux"), not(target_os = "macos"), not(target_os = "android")))] #[cfg(all(not(target_os = "windows"), not(target_os = "linux"), not(target_os = "macos"), not(target_os = "android")))]
use this_platform_is_not_supported; use this_platform_is_not_supported;
@ -67,10 +70,10 @@ mod winimpl;
mod winimpl; mod winimpl;
mod events; mod events;
#[cfg(feature = "headless")]
/// Identifier for a monitor. mod headless;
#[cfg(feature = "window")] #[cfg(feature = "window")]
pub struct MonitorID(winimpl::MonitorID); mod window;
/// Error that can happen while creating a window or a headless renderer. /// Error that can happen while creating a window or a headless renderer.
#[derive(Clone, Debug, PartialEq, Eq)] #[derive(Clone, Debug, PartialEq, Eq)]
@ -167,12 +170,6 @@ pub enum MouseCursor {
RowResize, RowResize,
} }
/// Object that allows you to build windows.
#[cfg(feature = "window")]
pub struct WindowBuilder<'a> {
attribs: BuilderAttribs<'a>
}
/// Attributes /// Attributes
struct BuilderAttribs<'a> { struct BuilderAttribs<'a> {
#[allow(dead_code)] #[allow(dead_code)]
@ -244,580 +241,3 @@ impl<'a> BuilderAttribs<'a> {
} }
} }
#[cfg(feature = "window")]
impl<'a> WindowBuilder<'a> {
/// Initializes a new `WindowBuilder` with default values.
pub fn new() -> WindowBuilder<'a> {
WindowBuilder {
attribs: BuilderAttribs::new(),
}
}
/// Requests the window to be of specific dimensions.
///
/// Width and height are in pixels.
pub fn with_dimensions(mut self, width: u32, height: u32) -> WindowBuilder<'a> {
self.attribs.dimensions = Some((width, height));
self
}
/// Requests a specific title for the window.
pub fn with_title(mut self, title: String) -> WindowBuilder<'a> {
self.attribs.title = title;
self
}
/// 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<'a> {
let MonitorID(monitor) = monitor;
self.attribs.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.attribs.sharing = Some(&other.window);
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: (u32, u32)) -> WindowBuilder<'a> {
self.attribs.gl_version = Some(version);
self
}
/// Sets the *debug* flag for the OpenGL context.
///
/// 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<'a> {
self.attribs.gl_debug = flag;
self
}
/// Requests that the window has vsync enabled.
pub fn with_vsync(mut self) -> WindowBuilder<'a> {
self.attribs.vsync = true;
self
}
/// Sets whether the window will be initially hidden or visible.
pub fn with_visibility(mut self, visible: bool) -> WindowBuilder<'a> {
self.attribs.visible = visible;
self
}
/// Sets the multisampling level to request.
///
/// # Panic
///
/// Will panic if `samples` is not a power of two.
pub fn with_multisampling(mut self, samples: u16) -> WindowBuilder<'a> {
use std::num::UnsignedInt;
assert!(samples.is_power_of_two());
self.attribs.multisampling = Some(samples);
self
}
/// Sets the number of bits in the depth buffer.
pub fn with_depth_buffer(mut self, bits: u8) -> WindowBuilder<'a> {
self.attribs.depth_bits = Some(bits);
self
}
/// Sets the number of bits in the stencil buffer.
pub fn with_stencil_buffer(mut self, bits: u8) -> WindowBuilder<'a> {
self.attribs.stencil_bits = Some(bits);
self
}
/// Sets the number of bits in the color buffer.
pub fn with_pixel_format(mut self, color_bits: u8, alpha_bits: u8) -> WindowBuilder<'a> {
self.attribs.color_bits = Some(color_bits);
self.attribs.alpha_bits = Some(alpha_bits);
self
}
/// Request the backend to be stereoscopic.
pub fn with_stereoscopy(mut self) -> WindowBuilder<'a> {
self.attribs.stereoscopy = true;
self
}
/// Builds the window.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
pub fn build(mut self) -> Result<Window, CreationError> {
// resizing the window to the dimensions of the monitor when fullscreen
if self.attribs.dimensions.is_none() && self.attribs.monitor.is_some() {
self.attribs.dimensions = Some(self.attribs.monitor.as_ref().unwrap().get_dimensions())
}
// default dimensions
if self.attribs.dimensions.is_none() {
self.attribs.dimensions = Some((1024, 768));
}
// building
winimpl::Window::new(self.attribs).map(|w| Window { window: w })
}
/// Builds the window.
///
/// The context is build in a *strict* way. That means that if the backend couldn't give
/// you what you requested, an `Err` will be returned.
pub fn build_strict(mut self) -> Result<Window, CreationError> {
self.attribs.strict = true;
self.build()
}
}
/// Object that allows you to build headless contexts.
#[cfg(feature = "headless")]
pub struct HeadlessRendererBuilder {
attribs: BuilderAttribs<'static>,
}
#[cfg(feature = "headless")]
impl HeadlessRendererBuilder {
/// Initializes a new `HeadlessRendererBuilder` with default values.
pub fn new(width: u32, height: u32) -> HeadlessRendererBuilder {
HeadlessRendererBuilder {
attribs: BuilderAttribs {
headless: true,
dimensions: Some((width, height)),
.. BuilderAttribs::new()
},
}
}
/// 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: (u32, u32)) -> HeadlessRendererBuilder {
self.attribs.gl_version = Some(version);
self
}
/// Sets the *debug* flag for the OpenGL context.
///
/// 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) -> HeadlessRendererBuilder {
self.attribs.gl_debug = flag;
self
}
/// Builds the headless context.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
pub fn build(self) -> Result<HeadlessContext, CreationError> {
winimpl::HeadlessContext::new(self.attribs).map(|w| HeadlessContext { context: w })
}
/// Builds the headless context.
///
/// The context is build in a *strict* way. That means that if the backend couldn't give
/// you what you requested, an `Err` will be returned.
pub fn build_strict(mut self) -> Result<HeadlessContext, CreationError> {
self.attribs.strict = true;
self.build()
}
}
/// Represents an OpenGL context and the Window or environment around it.
///
/// # Example
///
/// ```ignore
/// let window = Window::new().unwrap();
///
/// unsafe { window.make_current() };
///
/// loop {
/// for event in window.poll_events() {
/// // process events here
/// _ => ()
/// }
/// }
///
/// // draw everything here
///
/// window.swap_buffers();
/// std::old_io::timer::sleep(17);
/// }
/// ```
#[cfg(feature = "window")]
pub struct Window {
window: winimpl::Window,
}
#[cfg(feature = "window")]
impl Default for Window {
fn default() -> Window {
Window::new().unwrap()
}
}
#[cfg(feature = "window")]
impl Window {
/// Creates a new OpenGL context, and a Window for platforms where this is appropriate.
///
/// This function is equivalent to `WindowBuilder::new().build()`.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
#[inline]
#[cfg(feature = "window")]
pub fn new() -> Result<Window, CreationError> {
let builder = WindowBuilder::new();
builder.build()
}
/// Returns true if the window has previously been closed by the user.
#[inline]
pub fn is_closed(&self) -> bool {
self.window.is_closed()
}
/// Returns true if the window has previously been closed by the user.
#[inline]
#[deprecated = "Use is_closed instead"]
pub fn should_close(&self) -> bool {
self.is_closed()
}
/// Modifies the title of the window.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_title(&self, title: &str) {
self.window.set_title(title)
}
/// Shows the window if it was hidden.
///
/// ## Platform-specific
///
/// - Has no effect on Android
///
#[inline]
pub fn show(&self) {
self.window.show()
}
/// Hides the window if it was visible.
///
/// ## Platform-specific
///
/// - Has no effect on Android
///
#[inline]
pub fn hide(&self) {
self.window.hide()
}
/// Returns the position of the top-left hand corner of the window relative to the
/// top-left hand corner of the desktop.
///
/// Note that the top-left hand corner of the desktop is not necessarly the same as
/// the screen. If the user uses a desktop with multiple monitors, the top-left hand corner
/// of the desktop is the top-left hand corner of the monitor at the top-left of the desktop.
///
/// The coordinates can be negative if the top-left hand corner of the window is outside
/// of the visible screen region.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_position(&self) -> Option<(i32, i32)> {
self.window.get_position()
}
/// Modifies the position of the window.
///
/// See `get_position` for more informations about the coordinates.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_position(&self, x: i32, y: i32) {
self.window.set_position(x, y)
}
/// Returns the size in pixels of the client area of the window.
///
/// The client area is the content of the window, excluding the title bar and borders.
/// These are the dimensions of the frame buffer, and the dimensions that you should use
/// when you call `glViewport`.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_inner_size(&self) -> Option<(u32, u32)> {
self.window.get_inner_size()
}
/// Returns the size in pixels of the window.
///
/// These dimensions include title bar and borders. If you don't want these, you should use
/// use `get_inner_size` instead.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_outer_size(&self) -> Option<(u32, u32)> {
self.window.get_outer_size()
}
/// Modifies the inner size of the window.
///
/// See `get_inner_size` for more informations about the values.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_inner_size(&self, x: u32, y: u32) {
self.window.set_inner_size(x, y)
}
/// Returns an iterator that poll for the next event in the window's events queue.
/// Returns `None` if there is no event in the queue.
///
/// Contrary to `wait_events`, this function never blocks.
#[inline]
pub fn poll_events(&self) -> PollEventsIterator {
PollEventsIterator(self.window.poll_events())
}
/// Returns an iterator that returns events one by one, blocking if necessary until one is
/// available.
///
/// The iterator never returns `None`.
#[inline]
pub fn wait_events(&self) -> WaitEventsIterator {
WaitEventsIterator(self.window.wait_events())
}
/// Sets the context as the current context.
#[inline]
pub unsafe fn make_current(&self) {
self.window.make_current()
}
/// Returns the address of an OpenGL function.
///
/// Contrary to `wglGetProcAddress`, all available OpenGL functions return an address.
#[inline]
pub fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
self.window.get_proc_address(addr) as *const libc::c_void
}
/// Swaps the buffers in case of double or triple buffering.
///
/// You should call this function every time you have finished rendering, or the image
/// may not be displayed on the screen.
///
/// **Warning**: if you enabled vsync, this function will block until the next time the screen
/// is refreshed. However drivers can choose to override your vsync settings, which means that
/// you can't know in advance whether `swap_buffers` will block or not.
#[inline]
pub fn swap_buffers(&self) {
self.window.swap_buffers()
}
/// Gets the native platform specific display for this window.
/// This is typically only required when integrating with
/// other libraries that need this information.
#[inline]
pub unsafe fn platform_display(&self) -> *mut libc::c_void {
self.window.platform_display()
}
/// Returns the API that is currently provided by this window.
///
/// - On Windows and OS/X, this always returns `OpenGl`.
/// - On Android, this always returns `OpenGlEs`.
/// - On Linux, it must be checked at runtime.
pub fn get_api(&self) -> Api {
self.window.get_api()
}
/// Create a window proxy for this window, that can be freely
/// passed to different threads.
#[inline]
pub fn create_window_proxy(&self) -> WindowProxy {
WindowProxy {
proxy: self.window.create_window_proxy()
}
}
/// Sets a resize callback that is called by Mac (and potentially other
/// operating systems) during resize operations. This can be used to repaint
/// during window resizing.
#[experimental]
pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
self.window.set_window_resize_callback(callback);
}
/// Modifies the mouse cursor of the window.
/// Has no effect on Android.
pub fn set_cursor(&self, cursor: MouseCursor) {
self.window.set_cursor(cursor);
}
/// Returns the ratio between the backing framebuffer resolution and the
/// window size in screen pixels. This is typically one for a normal display
/// and two for a retina display.
pub fn hidpi_factor(&self) -> f32 {
self.window.hidpi_factor()
}
}
#[cfg(feature = "window")]
impl gl_common::GlFunctionsSource for Window {
fn get_proc_addr(&self, addr: &str) -> *const libc::c_void {
self.get_proc_address(addr)
}
}
/// Represents a thread safe subset of operations that can be called
/// on a window. This structure can be safely cloned and sent between
/// threads.
///
#[cfg(feature = "window")]
#[derive(Clone)]
pub struct WindowProxy {
proxy: winimpl::WindowProxy,
}
#[cfg(feature = "window")]
impl WindowProxy {
/// Triggers a blocked event loop to wake up. This is
/// typically called when another thread wants to wake
/// up the blocked rendering thread to cause a refresh.
#[inline]
pub fn wakeup_event_loop(&self) {
self.proxy.wakeup_event_loop();
}
}
/// Represents a headless OpenGL context.
#[cfg(feature = "headless")]
pub struct HeadlessContext {
context: winimpl::HeadlessContext,
}
#[cfg(feature = "headless")]
impl HeadlessContext {
/// Creates a new OpenGL context
/// Sets the context as the current context.
#[inline]
pub unsafe fn make_current(&self) {
self.context.make_current()
}
/// Returns the address of an OpenGL function.
///
/// Contrary to `wglGetProcAddress`, all available OpenGL functions return an address.
#[inline]
pub fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
self.context.get_proc_address(addr) as *const libc::c_void
}
/// Returns the API that is currently provided by this window.
///
/// See `Window::get_api` for more infos.
pub fn get_api(&self) -> Api {
self.context.get_api()
}
#[experimental]
pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
}
}
#[cfg(feature = "headless")]
impl gl_common::GlFunctionsSource for HeadlessContext {
fn get_proc_addr(&self, addr: &str) -> *const libc::c_void {
self.get_proc_address(addr)
}
}
/// An iterator for the `poll_events` function.
// Implementation note: we retreive the list once, then serve each element by one by one.
// This may change in the future.
#[cfg(feature = "window")]
pub struct PollEventsIterator<'a>(winimpl::PollEventsIterator<'a>);
#[cfg(feature = "window")]
impl<'a> Iterator for PollEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
self.0.next()
}
}
/// An iterator for the `wait_events` function.
// Implementation note: we retreive the list once, then serve each element by one by one.
// This may change in the future.
#[cfg(feature = "window")]
pub struct WaitEventsIterator<'a>(winimpl::WaitEventsIterator<'a>);
#[cfg(feature = "window")]
impl<'a> Iterator for WaitEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
self.0.next()
}
}
/// An iterator for the list of available monitors.
// Implementation note: we retreive the list once, then serve each element by one by one.
// This may change in the future.
#[cfg(feature = "window")]
pub struct AvailableMonitorsIter {
data: RingBufIter<winimpl::MonitorID>,
}
#[cfg(feature = "window")]
impl Iterator for AvailableMonitorsIter {
type Item = MonitorID;
fn next(&mut self) -> Option<MonitorID> {
self.data.next().map(|id| MonitorID(id))
}
}
/// Returns the list of all available monitors.
#[cfg(feature = "window")]
pub fn get_available_monitors() -> AvailableMonitorsIter {
let data = winimpl::get_available_monitors();
AvailableMonitorsIter{ data: data.into_iter() }
}
/// Returns the primary monitor of the system.
#[cfg(feature = "window")]
pub fn get_primary_monitor() -> MonitorID {
MonitorID(winimpl::get_primary_monitor())
}
#[cfg(feature = "window")]
impl MonitorID {
/// Returns a human-readable name of the monitor.
pub fn get_name(&self) -> Option<String> {
let &MonitorID(ref id) = self;
id.get_name()
}
/// Returns the number of pixels currently displayed on the monitor.
pub fn get_dimensions(&self) -> (u32, u32) {
let &MonitorID(ref id) = self;
id.get_dimensions()
}
}

478
src/window.rs Normal file
View file

@ -0,0 +1,478 @@
use std::collections::ring_buf::IntoIter as RingBufIter;
use std::default::Default;
use Api;
use BuilderAttribs;
use CreationError;
use Event;
use MouseCursor;
use gl_common;
use libc;
use winimpl;
/// Object that allows you to build windows.
pub struct WindowBuilder<'a> {
attribs: BuilderAttribs<'a>
}
impl<'a> WindowBuilder<'a> {
/// Initializes a new `WindowBuilder` with default values.
pub fn new() -> WindowBuilder<'a> {
WindowBuilder {
attribs: BuilderAttribs::new(),
}
}
/// Requests the window to be of specific dimensions.
///
/// Width and height are in pixels.
pub fn with_dimensions(mut self, width: u32, height: u32) -> WindowBuilder<'a> {
self.attribs.dimensions = Some((width, height));
self
}
/// Requests a specific title for the window.
pub fn with_title(mut self, title: String) -> WindowBuilder<'a> {
self.attribs.title = title;
self
}
/// 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<'a> {
let MonitorID(monitor) = monitor;
self.attribs.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.attribs.sharing = Some(&other.window);
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: (u32, u32)) -> WindowBuilder<'a> {
self.attribs.gl_version = Some(version);
self
}
/// Sets the *debug* flag for the OpenGL context.
///
/// 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<'a> {
self.attribs.gl_debug = flag;
self
}
/// Requests that the window has vsync enabled.
pub fn with_vsync(mut self) -> WindowBuilder<'a> {
self.attribs.vsync = true;
self
}
/// Sets whether the window will be initially hidden or visible.
pub fn with_visibility(mut self, visible: bool) -> WindowBuilder<'a> {
self.attribs.visible = visible;
self
}
/// Sets the multisampling level to request.
///
/// # Panic
///
/// Will panic if `samples` is not a power of two.
pub fn with_multisampling(mut self, samples: u16) -> WindowBuilder<'a> {
use std::num::UnsignedInt;
assert!(samples.is_power_of_two());
self.attribs.multisampling = Some(samples);
self
}
/// Sets the number of bits in the depth buffer.
pub fn with_depth_buffer(mut self, bits: u8) -> WindowBuilder<'a> {
self.attribs.depth_bits = Some(bits);
self
}
/// Sets the number of bits in the stencil buffer.
pub fn with_stencil_buffer(mut self, bits: u8) -> WindowBuilder<'a> {
self.attribs.stencil_bits = Some(bits);
self
}
/// Sets the number of bits in the color buffer.
pub fn with_pixel_format(mut self, color_bits: u8, alpha_bits: u8) -> WindowBuilder<'a> {
self.attribs.color_bits = Some(color_bits);
self.attribs.alpha_bits = Some(alpha_bits);
self
}
/// Request the backend to be stereoscopic.
pub fn with_stereoscopy(mut self) -> WindowBuilder<'a> {
self.attribs.stereoscopy = true;
self
}
/// Builds the window.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
pub fn build(mut self) -> Result<Window, CreationError> {
// resizing the window to the dimensions of the monitor when fullscreen
if self.attribs.dimensions.is_none() && self.attribs.monitor.is_some() {
self.attribs.dimensions = Some(self.attribs.monitor.as_ref().unwrap().get_dimensions())
}
// default dimensions
if self.attribs.dimensions.is_none() {
self.attribs.dimensions = Some((1024, 768));
}
// building
winimpl::Window::new(self.attribs).map(|w| Window { window: w })
}
/// Builds the window.
///
/// The context is build in a *strict* way. That means that if the backend couldn't give
/// you what you requested, an `Err` will be returned.
pub fn build_strict(mut self) -> Result<Window, CreationError> {
self.attribs.strict = true;
self.build()
}
}
/// Represents an OpenGL context and the Window or environment around it.
///
/// # Example
///
/// ```ignore
/// let window = Window::new().unwrap();
///
/// unsafe { window.make_current() };
///
/// loop {
/// for event in window.poll_events() {
/// // process events here
/// _ => ()
/// }
/// }
///
/// // draw everything here
///
/// window.swap_buffers();
/// std::old_io::timer::sleep(17);
/// }
/// ```
pub struct Window {
window: winimpl::Window,
}
impl Default for Window {
fn default() -> Window {
Window::new().unwrap()
}
}
impl Window {
/// Creates a new OpenGL context, and a Window for platforms where this is appropriate.
///
/// This function is equivalent to `WindowBuilder::new().build()`.
///
/// Error should be very rare and only occur in case of permission denied, incompatible system,
/// out of memory, etc.
#[inline]
pub fn new() -> Result<Window, CreationError> {
let builder = WindowBuilder::new();
builder.build()
}
/// Returns true if the window has previously been closed by the user.
#[inline]
pub fn is_closed(&self) -> bool {
self.window.is_closed()
}
/// Returns true if the window has previously been closed by the user.
#[inline]
#[deprecated = "Use is_closed instead"]
pub fn should_close(&self) -> bool {
self.is_closed()
}
/// Modifies the title of the window.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_title(&self, title: &str) {
self.window.set_title(title)
}
/// Shows the window if it was hidden.
///
/// ## Platform-specific
///
/// - Has no effect on Android
///
#[inline]
pub fn show(&self) {
self.window.show()
}
/// Hides the window if it was visible.
///
/// ## Platform-specific
///
/// - Has no effect on Android
///
#[inline]
pub fn hide(&self) {
self.window.hide()
}
/// Returns the position of the top-left hand corner of the window relative to the
/// top-left hand corner of the desktop.
///
/// Note that the top-left hand corner of the desktop is not necessarly the same as
/// the screen. If the user uses a desktop with multiple monitors, the top-left hand corner
/// of the desktop is the top-left hand corner of the monitor at the top-left of the desktop.
///
/// The coordinates can be negative if the top-left hand corner of the window is outside
/// of the visible screen region.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_position(&self) -> Option<(i32, i32)> {
self.window.get_position()
}
/// Modifies the position of the window.
///
/// See `get_position` for more informations about the coordinates.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_position(&self, x: i32, y: i32) {
self.window.set_position(x, y)
}
/// Returns the size in pixels of the client area of the window.
///
/// The client area is the content of the window, excluding the title bar and borders.
/// These are the dimensions of the frame buffer, and the dimensions that you should use
/// when you call `glViewport`.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_inner_size(&self) -> Option<(u32, u32)> {
self.window.get_inner_size()
}
/// Returns the size in pixels of the window.
///
/// These dimensions include title bar and borders. If you don't want these, you should use
/// use `get_inner_size` instead.
///
/// Returns `None` if the window no longer exists.
#[inline]
pub fn get_outer_size(&self) -> Option<(u32, u32)> {
self.window.get_outer_size()
}
/// Modifies the inner size of the window.
///
/// See `get_inner_size` for more informations about the values.
///
/// This is a no-op if the window has already been closed.
#[inline]
pub fn set_inner_size(&self, x: u32, y: u32) {
self.window.set_inner_size(x, y)
}
/// Returns an iterator that poll for the next event in the window's events queue.
/// Returns `None` if there is no event in the queue.
///
/// Contrary to `wait_events`, this function never blocks.
#[inline]
pub fn poll_events(&self) -> PollEventsIterator {
PollEventsIterator(self.window.poll_events())
}
/// Returns an iterator that returns events one by one, blocking if necessary until one is
/// available.
///
/// The iterator never returns `None`.
#[inline]
pub fn wait_events(&self) -> WaitEventsIterator {
WaitEventsIterator(self.window.wait_events())
}
/// Sets the context as the current context.
#[inline]
pub unsafe fn make_current(&self) {
self.window.make_current()
}
/// Returns the address of an OpenGL function.
///
/// Contrary to `wglGetProcAddress`, all available OpenGL functions return an address.
#[inline]
pub fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
self.window.get_proc_address(addr) as *const libc::c_void
}
/// Swaps the buffers in case of double or triple buffering.
///
/// You should call this function every time you have finished rendering, or the image
/// may not be displayed on the screen.
///
/// **Warning**: if you enabled vsync, this function will block until the next time the screen
/// is refreshed. However drivers can choose to override your vsync settings, which means that
/// you can't know in advance whether `swap_buffers` will block or not.
#[inline]
pub fn swap_buffers(&self) {
self.window.swap_buffers()
}
/// Gets the native platform specific display for this window.
/// This is typically only required when integrating with
/// other libraries that need this information.
#[inline]
pub unsafe fn platform_display(&self) -> *mut libc::c_void {
self.window.platform_display()
}
/// Returns the API that is currently provided by this window.
///
/// - On Windows and OS/X, this always returns `OpenGl`.
/// - On Android, this always returns `OpenGlEs`.
/// - On Linux, it must be checked at runtime.
pub fn get_api(&self) -> Api {
self.window.get_api()
}
/// Create a window proxy for this window, that can be freely
/// passed to different threads.
#[inline]
pub fn create_window_proxy(&self) -> WindowProxy {
WindowProxy {
proxy: self.window.create_window_proxy()
}
}
/// Sets a resize callback that is called by Mac (and potentially other
/// operating systems) during resize operations. This can be used to repaint
/// during window resizing.
pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
self.window.set_window_resize_callback(callback);
}
/// Modifies the mouse cursor of the window.
/// Has no effect on Android.
pub fn set_cursor(&self, cursor: MouseCursor) {
self.window.set_cursor(cursor);
}
/// Returns the ratio between the backing framebuffer resolution and the
/// window size in screen pixels. This is typically one for a normal display
/// and two for a retina display.
pub fn hidpi_factor(&self) -> f32 {
self.window.hidpi_factor()
}
}
impl gl_common::GlFunctionsSource for Window {
fn get_proc_addr(&self, addr: &str) -> *const libc::c_void {
self.get_proc_address(addr)
}
}
/// Represents a thread safe subset of operations that can be called
/// on a window. This structure can be safely cloned and sent between
/// threads.
#[derive(Clone)]
pub struct WindowProxy {
proxy: winimpl::WindowProxy,
}
impl WindowProxy {
/// Triggers a blocked event loop to wake up. This is
/// typically called when another thread wants to wake
/// up the blocked rendering thread to cause a refresh.
#[inline]
pub fn wakeup_event_loop(&self) {
self.proxy.wakeup_event_loop();
}
}
/// An iterator for the `poll_events` function.
pub struct PollEventsIterator<'a>(winimpl::PollEventsIterator<'a>);
impl<'a> Iterator for PollEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
self.0.next()
}
}
/// An iterator for the `wait_events` function.
pub struct WaitEventsIterator<'a>(winimpl::WaitEventsIterator<'a>);
impl<'a> Iterator for WaitEventsIterator<'a> {
type Item = Event;
fn next(&mut self) -> Option<Event> {
self.0.next()
}
}
/// An iterator for the list of available monitors.
// Implementation note: we retreive the list once, then serve each element by one by one.
// This may change in the future.
pub struct AvailableMonitorsIter {
data: RingBufIter<winimpl::MonitorID>,
}
impl Iterator for AvailableMonitorsIter {
type Item = MonitorID;
fn next(&mut self) -> Option<MonitorID> {
self.data.next().map(|id| MonitorID(id))
}
}
/// Returns the list of all available monitors.
pub fn get_available_monitors() -> AvailableMonitorsIter {
let data = winimpl::get_available_monitors();
AvailableMonitorsIter{ data: data.into_iter() }
}
/// Returns the primary monitor of the system.
pub fn get_primary_monitor() -> MonitorID {
MonitorID(winimpl::get_primary_monitor())
}
/// Identifier for a monitor.
pub struct MonitorID(winimpl::MonitorID);
impl MonitorID {
/// Returns a human-readable name of the monitor.
pub fn get_name(&self) -> Option<String> {
let &MonitorID(ref id) = self;
id.get_name()
}
/// Returns the number of pixels currently displayed on the monitor.
pub fn get_dimensions(&self) -> (u32, u32) {
let &MonitorID(ref id) = self;
id.get_dimensions()
}
}