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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/. */
use super::WebGLExtensions;
use canvas_traits::webgl::WebGLVersion;
use crate::dom::bindings::reflector::DomObject;
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::trace::JSTraceable;
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
/// Trait implemented by WebGL extensions.
pub trait WebGLExtension: Sized
where
Self::Extension: DomObject + JSTraceable,
{
type Extension;
/// Creates the DOM object of the WebGL extension.
fn new(ctx: &WebGLRenderingContext) -> DomRoot<Self::Extension>;
/// Returns which WebGL spec is this extension written against.
fn spec() -> WebGLExtensionSpec;
/// Checks if the extension is supported.
fn is_supported(ext: &WebGLExtensions) -> bool;
/// Enable the extension.
fn enable(ext: &WebGLExtensions);
/// Name of the WebGL Extension.
fn name() -> &'static str;
}
pub enum WebGLExtensionSpec {
/// Extensions written against both WebGL and WebGL2 specs.
All,
/// Extensions writen against a specific WebGL version spec.
Specific(WebGLVersion),
}
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