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webgl: Refactor implementation to move logic inside the DOM interfaces
This improves the encapsulation and consistency in our WebGL implementation. Also allows to implement new methods such as `getShaderSource()`. It will also allow us to use `delete()` in the destructors of them (note that we will want to keep track of them from the context).
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c022262826
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11 changed files with 452 additions and 130 deletions
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@ -9,31 +9,59 @@ use dom::bindings::js::Root;
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use dom::bindings::utils::reflect_dom_object;
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use dom::webglobject::WebGLObject;
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use canvas_traits::{CanvasMsg, CanvasWebGLMsg};
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use std::sync::mpsc::{channel, Sender};
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use std::cell::Cell;
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#[dom_struct]
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pub struct WebGLFramebuffer {
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webgl_object: WebGLObject,
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id: u32,
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is_deleted: Cell<bool>,
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renderer: Sender<CanvasMsg>,
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}
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impl WebGLFramebuffer {
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fn new_inherited(id: u32) -> WebGLFramebuffer {
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fn new_inherited(renderer: Sender<CanvasMsg>, id: u32) -> WebGLFramebuffer {
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WebGLFramebuffer {
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webgl_object: WebGLObject::new_inherited(),
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id: id,
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is_deleted: Cell::new(false),
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renderer: renderer,
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}
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}
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pub fn new(global: GlobalRef, id: u32) -> Root<WebGLFramebuffer> {
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reflect_dom_object(box WebGLFramebuffer::new_inherited(id), global, WebGLFramebufferBinding::Wrap)
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pub fn maybe_new(global: GlobalRef, renderer: Sender<CanvasMsg>) -> Option<Root<WebGLFramebuffer>> {
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let (sender, receiver) = channel();
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renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::CreateFramebuffer(sender))).unwrap();
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receiver.recv().unwrap()
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.map(|fb_id| WebGLFramebuffer::new(global, renderer, *fb_id))
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}
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pub fn new(global: GlobalRef, renderer: Sender<CanvasMsg>, id: u32) -> Root<WebGLFramebuffer> {
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reflect_dom_object(box WebGLFramebuffer::new_inherited(renderer, id), global, WebGLFramebufferBinding::Wrap)
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}
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}
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pub trait WebGLFramebufferHelpers {
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fn get_id(self) -> u32;
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fn id(self) -> u32;
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fn bind(self, target: u32);
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fn delete(self);
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}
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impl<'a> WebGLFramebufferHelpers for &'a WebGLFramebuffer {
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fn get_id(self) -> u32 {
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impl<'a> WebGLFramebufferHelpers for JSRef<'a, WebGLFramebuffer> {
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fn id(self) -> u32 {
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self.id
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}
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fn bind(self, target: u32) {
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self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::BindFramebuffer(target, self.id))).unwrap();
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}
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fn delete(self) {
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if !self.is_deleted.get() {
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self.is_deleted.set(true);
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self.renderer.send(CanvasMsg::WebGL(CanvasWebGLMsg::DeleteFramebuffer(self.id))).unwrap();
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}
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}
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}
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