forked from mirrors/gecko-dev
93c1ffc0ec
<!-- Please describe your changes on the following line: --> Sending this PR now so that we can get the webrender patches merged. This is prep for the webgl-fbo series, with one small fix for some conformance tests. --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [ ] These changes fix #__ (github issue number if applicable). <!-- Either: --> - [X] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: 7c0dfd07ad5149406b389ca893d51f6fa442e98e
98 lines
3.2 KiB
Rust
98 lines
3.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
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use canvas_traits::CanvasMsg;
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use dom::bindings::codegen::Bindings::WebGLFramebufferBinding;
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use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
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use dom::bindings::global::GlobalRef;
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use dom::bindings::js::Root;
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use dom::bindings::reflector::reflect_dom_object;
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use dom::webglobject::WebGLObject;
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use ipc_channel::ipc::{self, IpcSender};
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use std::cell::Cell;
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use webrender_traits::{WebGLCommand, WebGLFramebufferBindingRequest, WebGLFramebufferId};
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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: WebGLFramebufferId,
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/// target can only be gl::FRAMEBUFFER at the moment
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target: Cell<Option<u32>>,
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is_deleted: Cell<bool>,
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#[ignore_heap_size_of = "Defined in ipc-channel"]
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renderer: IpcSender<CanvasMsg>,
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}
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impl WebGLFramebuffer {
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fn new_inherited(renderer: IpcSender<CanvasMsg>,
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id: WebGLFramebufferId)
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-> 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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target: Cell::new(None),
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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 maybe_new(global: GlobalRef, renderer: IpcSender<CanvasMsg>)
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-> Option<Root<WebGLFramebuffer>> {
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let (sender, receiver) = ipc::channel().unwrap();
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renderer.send(CanvasMsg::WebGL(WebGLCommand::CreateFramebuffer(sender))).unwrap();
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let result = receiver.recv().unwrap();
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result.map(|fb_id| WebGLFramebuffer::new(global, renderer, fb_id))
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}
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pub fn new(global: GlobalRef,
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renderer: IpcSender<CanvasMsg>,
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id: WebGLFramebufferId)
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-> Root<WebGLFramebuffer> {
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reflect_dom_object(box WebGLFramebuffer::new_inherited(renderer, id),
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global,
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WebGLFramebufferBinding::Wrap)
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}
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}
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impl WebGLFramebuffer {
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pub fn id(&self) -> WebGLFramebufferId {
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self.id
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}
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pub fn bind(&self, target: u32) {
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self.target.set(Some(target));
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let cmd = WebGLCommand::BindFramebuffer(target, WebGLFramebufferBindingRequest::Explicit(self.id));
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self.renderer.send(CanvasMsg::WebGL(cmd)).unwrap();
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}
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pub 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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let _ = self.renderer.send(CanvasMsg::WebGL(WebGLCommand::DeleteFramebuffer(self.id)));
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}
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}
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pub fn is_deleted(&self) -> bool {
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self.is_deleted.get()
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}
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pub fn check_status(&self) -> u32 {
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// Until we build support for attaching renderbuffers or
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// textures, all user FBOs are incomplete.
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return constants::FRAMEBUFFER_UNSUPPORTED;
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}
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pub fn target(&self) -> Option<u32> {
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self.target.get()
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}
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}
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impl Drop for WebGLFramebuffer {
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fn drop(&mut self) {
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self.delete();
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}
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}
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