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Implement WebGL extensions.

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This commit is contained in:
Imanol Fernandez 2017-05-16 11:14:23 +02:00
parent ac99a48aea
commit 32e23c4db4
40 changed files with 1346 additions and 86 deletions
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39
components/script/dom/webglbuffer.rs
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@ -4,6 +4,7 @@
// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
use canvas_traits::CanvasMsg;
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::WebGLBufferBinding;
use dom::bindings::js::Root;
use dom::bindings::reflector::reflect_dom_object;
@ -12,8 +13,9 @@ use dom::window::Window;
use dom_struct::dom_struct;
use ipc_channel::ipc::IpcSender;
use std::cell::Cell;
use std::collections::HashSet;
use webrender_traits;
use webrender_traits::{WebGLBufferId, WebGLCommand, WebGLError, WebGLResult};
use webrender_traits::{WebGLBufferId, WebGLCommand, WebGLError, WebGLResult, WebGLVertexArrayId};
#[dom_struct]
pub struct WebGLBuffer {
@ -23,6 +25,9 @@ pub struct WebGLBuffer {
target: Cell<Option<u32>>,
capacity: Cell<usize>,
is_deleted: Cell<bool>,
// The Vertex Array Objects that are referencing this buffer
vao_references: DOMRefCell<Option<HashSet<WebGLVertexArrayId>>>,
pending_delete: Cell<bool>,
#[ignore_heap_size_of = "Defined in ipc-channel"]
renderer: IpcSender<CanvasMsg>,
}
@ -37,6 +42,8 @@ impl WebGLBuffer {
target: Cell::new(None),
capacity: Cell::new(0),
is_deleted: Cell::new(false),
vao_references: DOMRefCell::new(None),
pending_delete: Cell::new(false),
renderer: renderer,
}
}
@ -112,6 +119,36 @@ impl WebGLBuffer {
pub fn target(&self) -> Option<u32> {
self.target.get()
}
pub fn is_attached_to_vao(&self) -> bool {
self.vao_references.borrow().as_ref().map_or(false, |vaos| !vaos.is_empty())
}
pub fn set_pending_delete(&self) {
self.pending_delete.set(true);
}
pub fn add_vao_reference(&self, id: WebGLVertexArrayId) {
let mut vao_refs = self.vao_references.borrow_mut();
if let Some(ref mut vao_refs) = *vao_refs {
vao_refs.insert(id);
return;
}
let mut map = HashSet::new();
map.insert(id);
*vao_refs = Some(map);
}
pub fn remove_vao_reference(&self, id: WebGLVertexArrayId) {
if let Some(ref mut vao_refs) = *self.vao_references.borrow_mut() {
if vao_refs.take(&id).is_some() && self.pending_delete.get() {
// WebGL spec: The deleted buffers should no longer be valid when the VAOs are deleted
let _ = self.renderer.send(CanvasMsg::WebGL(WebGLCommand::DeleteBuffer(self.id)));
self.is_deleted.set(true);
}
}
}
}
impl Drop for WebGLBuffer {