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extern crate android_glue;
use libc;
use {CreationError, Event, WindowBuilder};
use CreationError::OsError;
use events::ElementState::{Pressed, Released};
use events::Event::{MouseInput, MouseMoved};
use events::MouseButton::LeftMouseButton;
pub struct Window {
display: ffi::egl::types::EGLDisplay,
context: ffi::egl::types::EGLContext,
surface: ffi::egl::types::EGLSurface,
event_rx: Receiver<android_glue::Event>,
}
pub struct MonitorID;
mod ffi;
compile_warning!("The Android implementation is not fully working yet")
pub fn get_available_monitors() -> Vec<MonitorID> {
vec![ MonitorID ]
}
pub fn get_primary_monitor() -> MonitorID {
MonitorID
}
impl MonitorID {
pub fn get_name(&self) -> Option<String> {
Some("Primary".to_string())
}
pub fn get_dimensions(&self) -> (uint, uint) {
unimplemented!()
}
}
impl Window {
pub fn new(_builder: WindowBuilder) -> Result<Window, CreationError> {
use std::{mem, ptr};
let native_window = unsafe { android_glue::get_native_window() };
if native_window.is_null() {
return Err(OsError(format!("Android's native window is null")));
}
let display = unsafe {
let display = ffi::egl::GetDisplay(mem::transmute(ffi::egl::DEFAULT_DISPLAY));
if display.is_null() {
return Err(OsError("No EGL display connection available".to_string()));
}
display
};
android_glue::write_log("eglGetDisplay succeeded");
let (_major, _minor) = unsafe {
let mut major: ffi::egl::types::EGLint = mem::uninitialized();
let mut minor: ffi::egl::types::EGLint = mem::uninitialized();
if ffi::egl::Initialize(display, &mut major, &mut minor) == 0 {
return Err(OsError(format!("eglInitialize failed")))
}
(major, minor)
};
android_glue::write_log("eglInitialize succeeded");
let config = unsafe {
let attribute_list = [
ffi::egl::RED_SIZE as i32, 1,
ffi::egl::GREEN_SIZE as i32, 1,
ffi::egl::BLUE_SIZE as i32, 1,
ffi::egl::NONE as i32
];
let mut num_config: ffi::egl::types::EGLint = mem::uninitialized();
let mut config: ffi::egl::types::EGLConfig = mem::uninitialized();
if ffi::egl::ChooseConfig(display, attribute_list.as_ptr(), &mut config, 1,
&mut num_config) == 0
{
return Err(OsError(format!("eglChooseConfig failed")))
}
if num_config <= 0 {
return Err(OsError(format!("eglChooseConfig returned no available config")))
}
config
};
android_glue::write_log("eglChooseConfig succeeded");
let context = unsafe {
let context = ffi::egl::CreateContext(display, config, ptr::null(), ptr::null());
if context.is_null() {
return Err(OsError(format!("eglCreateContext failed")))
}
context
};
android_glue::write_log("eglCreateContext succeeded");
let surface = unsafe {
let surface = ffi::egl::CreateWindowSurface(display, config, native_window, ptr::null());
if surface.is_null() {
return Err(OsError(format!("eglCreateWindowSurface failed")))
}
surface
};
android_glue::write_log("eglCreateWindowSurface succeeded");
let (tx, rx) = channel();
android_glue::add_sender(tx);
Ok(Window {
display: display,
context: context,
surface: surface,
event_rx: rx,
})
}
pub fn is_closed(&self) -> bool {
false
}
pub fn set_title(&self, _: &str) {
}
pub fn show(&self) {
}
pub fn hide(&self) {
}
pub fn get_position(&self) -> Option<(int, int)> {
None
}
pub fn set_position(&self, _x: int, _y: int) {
}
pub fn get_inner_size(&self) -> Option<(uint, uint)> {
let native_window = unsafe { android_glue::get_native_window() };
if native_window.is_null() {
None
} else {
Some((
unsafe { ffi::ANativeWindow_getWidth(native_window) } as uint,
unsafe { ffi::ANativeWindow_getHeight(native_window) } as uint
))
}
}
pub fn get_outer_size(&self) -> Option<(uint, uint)> {
self.get_inner_size()
}
pub fn set_inner_size(&self, _x: uint, _y: uint) {
}
pub fn poll_events(&self) -> Vec<Event> {
use std::time::Duration;
use std::io::timer;
timer::sleep(Duration::milliseconds(16));
Vec::new()
}
pub fn wait_events(&self) -> Vec<Event> {
use std::time::Duration;
use std::io::timer;
timer::sleep(Duration::milliseconds(16));
let mut events = Vec::new();
loop {
match self.event_rx.try_recv() {
Ok(event) => match event {
android_glue::EventDown => {
events.push(MouseInput(Pressed, LeftMouseButton));
},
android_glue::EventUp => {
events.push(MouseInput(Released, LeftMouseButton));
},
android_glue::EventMove(x, y) => {
events.push(MouseMoved((x as int, y as int)));
},
},
Err(_) => {
break;
},
}
}
events
}
pub fn make_current(&self) {
unsafe {
ffi::egl::MakeCurrent(self.display, self.surface, self.surface, self.context);
}
}
pub fn get_proc_address(&self, addr: &str) -> *const () {
use std::c_str::ToCStr;
unsafe {
addr.with_c_str(|s| {
ffi::egl::GetProcAddress(s) as *const ()
})
}
}
pub fn swap_buffers(&self) {
unsafe {
ffi::egl::SwapBuffers(self.display, self.surface);
}
}
pub fn platform_display(&self) -> *mut libc::c_void {
self.display as *mut libc::c_void
}
}
#[unsafe_destructor]
impl Drop for Window {
fn drop(&mut self) {
use std::ptr;
unsafe {
android_glue::write_log("Destroying gl-init window");
ffi::egl::MakeCurrent(self.display, ptr::null(), ptr::null(), ptr::null());
ffi::egl::DestroySurface(self.display, self.surface);
ffi::egl::DestroyContext(self.display, self.context);
ffi::egl::Terminate(self.display);
}
}
}
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