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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
use canvas_traits::{CanvasMsg, CanvasWebGLMsg, WebGLFramebufferBindingRequest};
use dom::bindings::codegen::Bindings::WebGLFramebufferBinding;
use dom::bindings::global::GlobalRef;
use dom::bindings::js::Root;
use dom::bindings::reflector::reflect_dom_object;
use dom::webglobject::WebGLObject;
use ipc_channel::ipc::{self, IpcSender};
use std::cell::Cell;
#[dom_struct]
pub struct WebGLFramebuffer {
webgl_object: WebGLObject,
id: u32,
is_deleted: Cell<bool>,
#[ignore_heap_size_of = "Defined in ipc-channel"]
renderer: IpcSender<CanvasMsg>,
}
impl WebGLFramebuffer {
fn new_inherited(renderer: IpcSender<CanvasMsg>, id: u32) -> WebGLFramebuffer {
WebGLFramebuffer {
webgl_object: WebGLObject::new_inherited(),
id: id,
is_deleted: Cell::new(false),
renderer: renderer,
}
}
pub fn maybe_new(global: GlobalRef, renderer: IpcSender<CanvasMsg>)
-> Option<Root<WebGLFramebuffer>> {
let (sender, receiver) = ipc::channel().unwrap();
renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CreateFramebuffer(sender))).unwrap();
let result = receiver.recv().unwrap();
result.map(|fb_id| WebGLFramebuffer::new(global, renderer, *fb_id))
}
pub fn new(global: GlobalRef, renderer: IpcSender<CanvasMsg>, id: u32)
-> Root<WebGLFramebuffer> {
reflect_dom_object(box WebGLFramebuffer::new_inherited(renderer, id), global, WebGLFramebufferBinding::Wrap)
}
}
impl WebGLFramebuffer {
pub fn id(&self) -> u32 {
self.id
}
pub fn bind(&self, target: u32) {
let cmd = CanvasWebGLMsg::BindFramebuffer(target, WebGLFramebufferBindingRequest::Explicit(self.id));
self.renderer.send(CanvasMsg::WebGL(cmd)).unwrap();
}
pub fn delete(&self) {
if !self.is_deleted.get() {
self.is_deleted.set(true);
self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::DeleteFramebuffer(self.id))).unwrap();
}
}
}
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