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Implement headless rendering

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This commit is contained in:
Tomaka17 2014-10-04 19:17:02 +02:00
parent cfb0cb7001
commit e565bfeb13
17 changed files with 791 additions and 518 deletions
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40
src/win32/init.rs
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@ -6,7 +6,7 @@ use std::sync::atomics::AtomicBool;
use std::ptr;
use super::{event, ffi};
use super::Window;
use {Event, WindowBuilder};
use Event;
/// Stores the current window and its events dispatcher.
///
@ -14,12 +14,16 @@ use {Event, WindowBuilder};
/// receive an event for another window.
local_data_key!(WINDOW: (ffi::HWND, Sender<Event>))
pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
pub fn new_window(builder_dimensions: Option<(uint, uint)>, builder_title: String,
builder_monitor: Option<super::MonitorID>,
builder_gl_version: Option<(uint, uint)>,
builder_headless: bool) -> Result<Window, String>
{
use std::mem;
use std::os;
// initializing variables to be sent to the task
let title = builder.title.as_slice().utf16_units()
let title = builder_title.as_slice().utf16_units()
.collect::<Vec<u16>>().append_one(0); // title to utf16
//let hints = hints.clone();
let (tx, rx) = channel();
@ -59,15 +63,15 @@ pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
// building a RECT object with coordinates
let mut rect = ffi::RECT {
left: 0, right: builder.dimensions.unwrap_or((1024, 768)).val0() as ffi::LONG,
top: 0, bottom: builder.dimensions.unwrap_or((1024, 768)).val1() as ffi::LONG,
left: 0, right: builder_dimensions.unwrap_or((1024, 768)).val0() as ffi::LONG,
top: 0, bottom: builder_dimensions.unwrap_or((1024, 768)).val1() as ffi::LONG,
};
// switching to fullscreen if necessary
// this means adjusting the window's position so that it overlaps the right monitor,
// and change the monitor's resolution if necessary
if builder.monitor.is_some() {
let monitor = builder.monitor.as_ref().unwrap();
if builder_monitor.is_some() {
let monitor = builder_monitor.as_ref().unwrap();
// adjusting the rect
{
@ -96,7 +100,7 @@ pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
}
// computing the style and extended style of the window
let (ex_style, style) = if builder.monitor.is_some() {
let (ex_style, style) = if builder_monitor.is_some() {
(ffi::WS_EX_APPWINDOW, ffi::WS_POPUP | ffi::WS_CLIPSIBLINGS | ffi::WS_CLIPCHILDREN)
} else {
(ffi::WS_EX_APPWINDOW | ffi::WS_EX_WINDOWEDGE,
@ -227,17 +231,23 @@ pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
// creating the real window this time
let real_window = unsafe {
let (width, height) = if builder.monitor.is_some() || builder.dimensions.is_some() {
let (width, height) = if builder_monitor.is_some() || builder_dimensions.is_some() {
(Some(rect.right - rect.left), Some(rect.bottom - rect.top))
} else {
(None, None)
};
let style = if builder_headless {
style
} else {
style | ffi::WS_VISIBLE
};
let handle = ffi::CreateWindowExW(ex_style, class_name.as_ptr(),
title.as_ptr() as ffi::LPCWSTR,
style | ffi::WS_VISIBLE | ffi::WS_CLIPSIBLINGS | ffi::WS_CLIPCHILDREN,
if builder.monitor.is_some() { 0 } else { ffi::CW_USEDEFAULT },
if builder.monitor.is_some() { 0 } else { ffi::CW_USEDEFAULT },
style | ffi::WS_CLIPSIBLINGS | ffi::WS_CLIPCHILDREN,
if builder_monitor.is_some() { 0 } else { ffi::CW_USEDEFAULT },
if builder_monitor.is_some() { 0 } else { ffi::CW_USEDEFAULT },
width.unwrap_or(ffi::CW_USEDEFAULT), height.unwrap_or(ffi::CW_USEDEFAULT),
ptr::null(), ptr::null(), ffi::GetModuleHandleW(ptr::null()),
ptr::null_mut());
@ -280,8 +290,8 @@ pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
let mut attributes = Vec::new();
if builder.gl_version.is_some() {
let version = builder.gl_version.as_ref().unwrap();
if builder_gl_version.is_some() {
let version = builder_gl_version.as_ref().unwrap();
attributes.push(ffi::wgl_extra::CONTEXT_MAJOR_VERSION_ARB as libc::c_int);
attributes.push(version.val0() as libc::c_int);
attributes.push(ffi::wgl_extra::CONTEXT_MINOR_VERSION_ARB as libc::c_int);
@ -310,7 +320,7 @@ pub fn new_window(builder: WindowBuilder) -> Result<Window, String> {
};
// calling SetForegroundWindow if fullscreen
if builder.monitor.is_some() {
if builder_monitor.is_some() {
unsafe { ffi::SetForegroundWindow(real_window) };
}