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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
use std::os::raw::{c_void, c_char};
/*
This is a very simple (and unsafe!) rust wrapper for the DirectComposite / D3D11 / ANGLE
implementation in lib.cpp.
It just proxies the calls from the Compositor impl to the C99 code. This is very
hacky and not suitable for production!
*/
// Opaque wrapper for the Window type in lib.cpp
#[repr(C)]
pub struct Window {
_unused: [u8; 0]
}
// C99 functions that do the compositor work
extern {
fn com_dc_create_window(
width: i32,
height: i32,
enable_compositor: bool,
sync_mode: i32,
) -> *mut Window;
fn com_dc_destroy_window(window: *mut Window);
fn com_dc_tick(window: *mut Window) -> bool;
fn com_dc_get_proc_address(name: *const c_char) -> *const c_void;
fn com_dc_swap_buffers(window: *mut Window);
fn com_dc_create_surface(
window: *mut Window,
id: u64,
tile_width: i32,
tile_height: i32,
is_opaque: bool,
);
fn com_dc_create_tile(
window: *mut Window,
id: u64,
x: i32,
y: i32,
);
fn com_dc_destroy_tile(
window: *mut Window,
id: u64,
x: i32,
y: i32,
);
fn com_dc_destroy_surface(
window: *mut Window,
id: u64,
);
fn com_dc_bind_surface(
window: *mut Window,
surface_id: u64,
tile_x: i32,
tile_y: i32,
x_offset: &mut i32,
y_offset: &mut i32,
dirty_x0: i32,
dirty_y0: i32,
dirty_width: i32,
dirty_height: i32,
) -> u32;
fn com_dc_unbind_surface(window: *mut Window);
fn com_dc_begin_transaction(window: *mut Window);
fn com_dc_add_surface(
window: *mut Window,
id: u64,
x: i32,
y: i32,
clip_x: i32,
clip_y: i32,
clip_w: i32,
clip_h: i32,
);
fn com_dc_end_transaction(window: *mut Window);
}
pub fn create_window(
width: i32,
height: i32,
enable_compositor: bool,
sync_mode: i32,
) -> *mut Window {
unsafe {
com_dc_create_window(width, height, enable_compositor, sync_mode)
}
}
pub fn destroy_window(window: *mut Window) {
unsafe {
com_dc_destroy_window(window);
}
}
pub fn tick(window: *mut Window) -> bool {
unsafe {
com_dc_tick(window)
}
}
pub fn get_proc_address(name: *const c_char) -> *const c_void {
unsafe {
com_dc_get_proc_address(name)
}
}
pub fn create_surface(
window: *mut Window,
id: u64,
tile_width: i32,
tile_height: i32,
is_opaque: bool,
) {
unsafe {
com_dc_create_surface(
window,
id,
tile_width,
tile_height,
is_opaque,
)
}
}
pub fn create_tile(
window: *mut Window,
id: u64,
x: i32,
y: i32,
) {
unsafe {
com_dc_create_tile(
window,
id,
x,
y,
)
}
}
pub fn destroy_tile(
window: *mut Window,
id: u64,
x: i32,
y: i32,
) {
unsafe {
com_dc_destroy_tile(
window,
id,
x,
y,
)
}
}
pub fn destroy_surface(
window: *mut Window,
id: u64,
) {
unsafe {
com_dc_destroy_surface(
window,
id,
)
}
}
pub fn bind_surface(
window: *mut Window,
surface_id: u64,
tile_x: i32,
tile_y: i32,
dirty_x0: i32,
dirty_y0: i32,
dirty_width: i32,
dirty_height: i32,
) -> (u32, i32, i32) {
unsafe {
let mut x_offset = 0;
let mut y_offset = 0;
let fbo_id = com_dc_bind_surface(
window,
surface_id,
tile_x,
tile_y,
&mut x_offset,
&mut y_offset,
dirty_x0,
dirty_y0,
dirty_width,
dirty_height,
);
(fbo_id, x_offset, y_offset)
}
}
pub fn add_surface(
window: *mut Window,
id: u64,
x: i32,
y: i32,
clip_x: i32,
clip_y: i32,
clip_w: i32,
clip_h: i32,
) {
unsafe {
com_dc_add_surface(
window,
id,
x,
y,
clip_x,
clip_y,
clip_w,
clip_h,
)
}
}
pub fn begin_transaction(window: *mut Window) {
unsafe {
com_dc_begin_transaction(window)
}
}
pub fn unbind_surface(window: *mut Window) {
unsafe {
com_dc_unbind_surface(window)
}
}
pub fn end_transaction(window: *mut Window) {
unsafe {
com_dc_end_transaction(window)
}
}
pub fn swap_buffers(window: *mut Window) {
unsafe {
com_dc_swap_buffers(window);
}
}
pub fn deinit(_window: *mut Window) {
todo!()
}