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-rw-r--r--src/x11/mod.rs502
1 files changed, 8 insertions, 494 deletions
diff --git a/src/x11/mod.rs b/src/x11/mod.rs
index 80a84f7..9d9d25c 100644
--- a/src/x11/mod.rs
+++ b/src/x11/mod.rs
@@ -1,499 +1,13 @@
-use {Event, WindowBuilder};
-use libc;
-use std::{mem, ptr};
-use std::sync::atomics::AtomicBool;
+#[cfg(feature = "headless")]
+pub use self::headless::HeadlessContext;
-pub use self::monitor::{MonitorID, get_available_monitors, get_primary_monitor};
+#[cfg(feature = "window")]
+pub use self::window::{Window, MonitorID, get_available_monitors, get_primary_monitor};
-mod events;
mod ffi;
-mod monitor;
-pub struct Window {
- display: *mut ffi::Display,
- window: ffi::Window,
- im: ffi::XIM,
- ic: ffi::XIC,
- context: ffi::GLXContext,
- is_closed: AtomicBool,
- wm_delete_window: ffi::Atom,
- xf86_desk_mode: *mut ffi::XF86VidModeModeInfo,
- screen_id: libc::c_int,
- is_fullscreen: bool,
-}
+#[cfg(feature = "headless")]
+mod headless;
-impl Window {
- pub fn new(builder: WindowBuilder) -> Result<Window, String> {
- let dimensions = builder.dimensions.unwrap_or((800, 600));
-
- // calling XOpenDisplay
- let display = unsafe {
- let display = ffi::XOpenDisplay(ptr::null());
- if display.is_null() {
- return Err(format!("XOpenDisplay failed"));
- }
- display
- };
-
- let screen_id = match builder.monitor {
- Some(MonitorID(monitor)) => monitor as i32,
- None => unsafe { ffi::XDefaultScreen(display) },
- };
-
- // getting the FBConfig
- let fb_config = unsafe {
- static VISUAL_ATTRIBUTES: [libc::c_int, ..23] = [
- ffi::GLX_X_RENDERABLE, 1,
- ffi::GLX_DRAWABLE_TYPE, ffi::GLX_WINDOW_BIT,
- ffi::GLX_RENDER_TYPE, ffi::GLX_RGBA_BIT,
- ffi::GLX_X_VISUAL_TYPE, ffi::GLX_TRUE_COLOR,
- ffi::GLX_RED_SIZE, 8,
- ffi::GLX_GREEN_SIZE, 8,
- ffi::GLX_BLUE_SIZE, 8,
- ffi::GLX_ALPHA_SIZE, 8,
- ffi::GLX_DEPTH_SIZE, 24,
- ffi::GLX_STENCIL_SIZE, 8,
- ffi::GLX_DOUBLEBUFFER, 1,
- 0
- ];
-
- let mut num_fb: libc::c_int = mem::uninitialized();
-
- let fb = ffi::glXChooseFBConfig(display, ffi::XDefaultScreen(display),
- VISUAL_ATTRIBUTES.as_ptr(), &mut num_fb);
- if fb.is_null() {
- return Err(format!("glXChooseFBConfig failed"));
- }
- let preferred_fb = *fb; // TODO: choose more wisely
- ffi::XFree(fb as *const libc::c_void);
- preferred_fb
- };
-
- let mut best_mode = -1;
- let modes = unsafe {
- let mut mode_num: libc::c_int = mem::uninitialized();
- let mut modes: *mut *mut ffi::XF86VidModeModeInfo = mem::uninitialized();
- if ffi::XF86VidModeGetAllModeLines(display, screen_id, &mut mode_num, &mut modes) == 0 {
- return Err(format!("Could not query the video modes"));
- }
-
- for i in range(0, mode_num) {
- let mode: ffi::XF86VidModeModeInfo = **modes.offset(i as int);
- if mode.hdisplay == dimensions.val0() as u16 && mode.vdisplay == dimensions.val1() as u16 {
- best_mode = i;
- }
- };
- if best_mode == -1 {
- return Err(format!("Could not find a suitable graphics mode"));
- }
-
- modes
- };
-
- let xf86_desk_mode = unsafe {
- *modes.offset(0)
- };
-
- // getting the visual infos
- let visual_infos = unsafe {
- let vi = ffi::glXGetVisualFromFBConfig(display, fb_config);
- if vi.is_null() {
- return Err(format!("glXChooseVisual failed"));
- }
- let vi_copy = *vi;
- ffi::XFree(vi as *const libc::c_void);
- vi_copy
- };
-
- // getting the root window
- let root = unsafe { ffi::XDefaultRootWindow(display) };
-
- // creating the color map
- let cmap = unsafe {
- let cmap = ffi::XCreateColormap(display, root,
- visual_infos.visual, ffi::AllocNone);
- // TODO: error checking?
- cmap
- };
-
- // creating
- let mut set_win_attr = {
- let mut swa: ffi::XSetWindowAttributes = unsafe { mem::zeroed() };
- swa.colormap = cmap;
- swa.event_mask = ffi::ExposureMask | ffi::ResizeRedirectMask |
- ffi::VisibilityChangeMask | ffi::KeyPressMask | ffi::PointerMotionMask |
- ffi::KeyReleaseMask | ffi::ButtonPressMask |
- ffi::ButtonReleaseMask | ffi::KeymapStateMask;
- swa.border_pixel = 0;
- swa.override_redirect = 0;
- swa
- };
-
- let mut window_attributes = ffi::CWBorderPixel | ffi::CWColormap | ffi:: CWEventMask;
- if builder.monitor.is_some() {
- window_attributes |= ffi::CWOverrideRedirect;
- unsafe {
- ffi::XF86VidModeSwitchToMode(display, screen_id, *modes.offset(best_mode as int));
- ffi::XF86VidModeSetViewPort(display, screen_id, 0, 0);
- set_win_attr.override_redirect = 1;
- }
- }
-
- // finally creating the window
- let window = unsafe {
- let win = ffi::XCreateWindow(display, root, 0, 0, dimensions.val0() as libc::c_uint,
- dimensions.val1() as libc::c_uint, 0, visual_infos.depth, ffi::InputOutput,
- visual_infos.visual, window_attributes,
- &mut set_win_attr);
- win
- };
-
- // creating window, step 2
- let wm_delete_window = unsafe {
- use std::c_str::ToCStr;
-
- ffi::XMapWindow(display, window);
- let mut wm_delete_window = ffi::XInternAtom(display,
- "WM_DELETE_WINDOW".to_c_str().as_ptr() as *const libc::c_char, 0);
- ffi::XSetWMProtocols(display, window, &mut wm_delete_window, 1);
- ffi::XStoreName(display, window, mem::transmute(builder.title.as_slice().as_ptr()));
- ffi::XFlush(display);
-
- wm_delete_window
- };
-
- // getting the pointer to glXCreateContextAttribs
- let create_context_attribs = unsafe {
- let mut addr = ffi::glXGetProcAddress(b"glXCreateContextAttribs".as_ptr()
- as *const u8) as *const ();
-
- if addr.is_null() {
- addr = ffi::glXGetProcAddress(b"glXCreateContextAttribsARB".as_ptr()
- as *const u8) as *const ();
- }
-
- addr.as_ref().map(|addr| {
- let addr: extern "system" fn(*mut ffi::Display, ffi::GLXFBConfig, ffi::GLXContext,
- ffi::Bool, *const libc::c_int) -> ffi::GLXContext = mem::transmute(addr);
- addr
- })
- };
-
- // creating IM
- let im = unsafe {
- let im = ffi::XOpenIM(display, ptr::null(), ptr::null_mut(), ptr::null_mut());
- if im.is_null() {
- return Err(format!("XOpenIM failed"));
- }
- im
- };
-
- // creating input context
- let ic = unsafe {
- use std::c_str::ToCStr;
-
- let ic = ffi::XCreateIC(im, "inputStyle".to_c_str().as_ptr(),
- ffi::XIMPreeditNothing | ffi::XIMStatusNothing, "clientWindow".to_c_str().as_ptr(),
- window, ptr::null());
- if ic.is_null() {
- return Err(format!("XCreateIC failed"));
- }
- ffi::XSetICFocus(ic);
- ic
- };
-
- // Attempt to make keyboard input repeat detectable
- unsafe {
- let mut supported_ptr = false;
- ffi::XkbSetDetectableAutoRepeat(display, true, &mut supported_ptr);
- if !supported_ptr {
- return Err(format!("XkbSetDetectableAutoRepeat failed"));
- }
- }
-
-
- // creating GL context
- let context = unsafe {
- let mut attributes = Vec::new();
-
- if builder.gl_version.is_some() {
- let version = builder.gl_version.as_ref().unwrap();
- attributes.push(ffi::GLX_CONTEXT_MAJOR_VERSION);
- attributes.push(version.val0() as libc::c_int);
- attributes.push(ffi::GLX_CONTEXT_MINOR_VERSION);
- attributes.push(version.val1() as libc::c_int);
- }
-
- attributes.push(0);
-
- let context = if create_context_attribs.is_some() {
- let create_context_attribs = create_context_attribs.unwrap();
- create_context_attribs(display, fb_config, ptr::null(), 1,
- attributes.as_ptr())
- } else {
- ffi::glXCreateContext(display, &visual_infos, ptr::null(), 1)
- };
-
- if context.is_null() {
- return Err(format!("GL context creation failed"));
- }
-
- context
- };
-
- // creating the window object
- let window = Window {
- display: display,
- window: window,
- im: im,
- ic: ic,
- context: context,
- is_closed: AtomicBool::new(false),
- wm_delete_window: wm_delete_window,
- xf86_desk_mode: xf86_desk_mode,
- screen_id: screen_id,
- is_fullscreen: builder.monitor.is_some(),
- };
-
- // calling glViewport
- unsafe {
- let ptr = window.get_proc_address("glViewport");
- assert!(!ptr.is_null());
- let ptr: extern "system" fn(libc::c_int, libc::c_int, libc::c_int, libc::c_int) =
- mem::transmute(ptr);
- let dimensions = window.get_inner_size().unwrap();
- ptr(0, 0, dimensions.val0() as libc::c_int, dimensions.val1() as libc::c_int);
- }
-
- // returning
- Ok(window)
- }
-
- pub fn is_closed(&self) -> bool {
- use std::sync::atomics::Relaxed;
- self.is_closed.load(Relaxed)
- }
-
- pub fn set_title(&self, title: &str) {
- unsafe {
- ffi::XStoreName(self.display, self.window,
- mem::transmute(title.as_slice().as_ptr()));
- }
- }
-
- fn get_geometry(&self) -> Option<(int, int, uint, uint)> {
- unsafe {
- use std::mem;
-
- let mut root: ffi::Window = mem::uninitialized();
- let mut x: libc::c_int = mem::uninitialized();
- let mut y: libc::c_int = mem::uninitialized();
- let mut width: libc::c_uint = mem::uninitialized();
- let mut height: libc::c_uint = mem::uninitialized();
- let mut border: libc::c_uint = mem::uninitialized();
- let mut depth: libc::c_uint = mem::uninitialized();
-
- if ffi::XGetGeometry(self.display, self.window,
- &mut root, &mut x, &mut y, &mut width, &mut height,
- &mut border, &mut depth) == 0
- {
- return None;
- }
-
- Some((x as int, y as int, width as uint, height as uint))
- }
- }
-
- pub fn get_position(&self) -> Option<(int, int)> {
- self.get_geometry().map(|(x, y, _, _)| (x, y))
- }
-
- pub fn set_position(&self, x: int, y: int) {
- unsafe { ffi::XMoveWindow(self.display, self.window, x as libc::c_int, y as libc::c_int) }
- }
-
- pub fn get_inner_size(&self) -> Option<(uint, uint)> {
- self.get_geometry().map(|(_, _, w, h)| (w, h))
- }
-
- pub fn get_outer_size(&self) -> Option<(uint, uint)> {
- unimplemented!()
- }
-
- pub fn set_inner_size(&self, _x: uint, _y: uint) {
- unimplemented!()
- }
-
- pub fn poll_events(&self) -> Vec<Event> {
- use std::mem;
-
- let mut events = Vec::new();
-
- loop {
- use std::num::Bounded;
-
- let mut xev = unsafe { mem::uninitialized() };
- let res = unsafe { ffi::XCheckMaskEvent(self.display, Bounded::max_value(), &mut xev) };
-
- if res == 0 {
- let res = unsafe { ffi::XCheckTypedEvent(self.display, ffi::ClientMessage, &mut xev) };
-
- if res == 0 {
- break
- }
- }
-
- match xev.type_ {
- ffi::KeymapNotify => {
- unsafe { ffi::XRefreshKeyboardMapping(&xev) }
- },
-
- ffi::ClientMessage => {
- use Closed;
- use std::sync::atomics::Relaxed;
-
- let client_msg: &ffi::XClientMessageEvent = unsafe { mem::transmute(&xev) };
-
- if client_msg.l[0] == self.wm_delete_window as libc::c_long {
- self.is_closed.store(true, Relaxed);
- events.push(Closed);
- }
- },
-
- ffi::ResizeRequest => {
- use Resized;
- let rs_event: &ffi::XResizeRequestEvent = unsafe { mem::transmute(&xev) };
- events.push(Resized(rs_event.width as uint, rs_event.height as uint));
- },
-
- ffi::MotionNotify => {
- use MouseMoved;
- let event: &ffi::XMotionEvent = unsafe { mem::transmute(&xev) };
- events.push(MouseMoved((event.x as int, event.y as int)));
- },
-
- ffi::KeyPress | ffi::KeyRelease => {
- use {KeyboardInput, Pressed, Released, ReceivedCharacter, KeyModifiers};
- let event: &mut ffi::XKeyEvent = unsafe { mem::transmute(&xev) };
-
- if event.type_ == ffi::KeyPress {
- let raw_ev: *mut ffi::XKeyEvent = event;
- unsafe { ffi::XFilterEvent(mem::transmute(raw_ev), self.window) };
- }
-
- let state = if xev.type_ == ffi::KeyPress { Pressed } else { Released };
-
- let written = unsafe {
- use std::str;
-
- let mut buffer: [u8, ..16] = [mem::uninitialized(), ..16];
- let raw_ev: *mut ffi::XKeyEvent = event;
- let count = ffi::Xutf8LookupString(self.ic, mem::transmute(raw_ev),
- mem::transmute(buffer.as_mut_ptr()),
- buffer.len() as libc::c_int, ptr::null_mut(), ptr::null_mut());
-
- str::from_utf8(buffer.as_slice().slice_to(count as uint))
- .unwrap_or("").to_string()
- };
-
- for chr in written.as_slice().chars() {
- events.push(ReceivedCharacter(chr));
- }
-
- let keysym = unsafe {
- ffi::XKeycodeToKeysym(self.display, event.keycode as ffi::KeyCode, 0)
- };
-
- let vkey = events::keycode_to_element(keysym as libc::c_uint);
-
- events.push(KeyboardInput(state, event.keycode as u8,
- vkey, KeyModifiers::empty()));
- //
- },
-
- ffi::ButtonPress | ffi::ButtonRelease => {
- use {MouseInput, Pressed, Released};
- use {LeftMouseButton, RightMouseButton, MiddleMouseButton, OtherMouseButton};
- let event: &ffi::XButtonEvent = unsafe { mem::transmute(&xev) };
-
- let state = if xev.type_ == ffi::ButtonPress { Pressed } else { Released };
-
- let button = match event.button {
- ffi::Button1 => Some(LeftMouseButton),
- ffi::Button2 => Some(MiddleMouseButton),
- ffi::Button3 => Some(RightMouseButton),
- ffi::Button4 => Some(OtherMouseButton(4)),
- ffi::Button5 => Some(OtherMouseButton(5)),
- _ => None
- };
-
- match button {
- Some(button) =>
- events.push(MouseInput(state, button)),
- None => ()
- };
- },
-
- _ => ()
- }
- }
-
- events
- }
-
- pub fn wait_events(&self) -> Vec<Event> {
- use std::mem;
-
- loop {
- // this will block until an event arrives, but doesn't remove
- // it from the queue
- let mut xev = unsafe { mem::uninitialized() };
- unsafe { ffi::XPeekEvent(self.display, &mut xev) };
-
- // calling poll_events()
- let ev = self.poll_events();
- if ev.len() >= 1 {
- return ev;
- }
- }
- }
-
- pub unsafe fn make_current(&self) {
- let res = ffi::glXMakeCurrent(self.display, self.window, self.context);
- if res == 0 {
- fail!("glXMakeCurrent failed");
- }
- }
-
- pub fn get_proc_address(&self, addr: &str) -> *const () {
- use std::c_str::ToCStr;
- use std::mem;
-
- unsafe {
- addr.with_c_str(|s| {
- ffi::glXGetProcAddress(mem::transmute(s)) as *const ()
- })
- }
- }
-
- pub fn swap_buffers(&self) {
- unsafe { ffi::glXSwapBuffers(self.display, self.window) }
- }
-}
-
-impl Drop for Window {
- fn drop(&mut self) {
- unsafe { ffi::glXMakeCurrent(self.display, 0, ptr::null()); }
- unsafe { ffi::glXDestroyContext(self.display, self.context); }
-
- if self.is_fullscreen {
- unsafe { ffi::XF86VidModeSwitchToMode(self.display, self.screen_id, self.xf86_desk_mode); }
- unsafe { ffi::XF86VidModeSetViewPort(self.display, self.screen_id, 0, 0); }
- }
-
- unsafe { ffi::XDestroyIC(self.ic); }
- unsafe { ffi::XCloseIM(self.im); }
- unsafe { ffi::XDestroyWindow(self.display, self.window); }
- unsafe { ffi::XCloseDisplay(self.display); }
- }
-}
+#[cfg(feature = "window")]
+mod window;
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-13 09:40:55 +0000