mirror of
https://github.com/servo/servo.git
synced 2025-06-20 23:28:59 +01:00
f87c2a8d76
In a later PR, DomRoot<T> will become a type alias of Root<Dom<T>>, where Root<T> will be able to handle all the things that need to be rooted that have a stable traceable address that doesn't move for the whole lifetime of the root. Stay tuned.
50 lines
1.8 KiB
Rust
50 lines
1.8 KiB
Rust
/* 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 dom::bindings::codegen::Bindings::OESStandardDerivativesBinding;
|
|
use dom::bindings::codegen::Bindings::OESStandardDerivativesBinding::OESStandardDerivativesConstants;
|
|
use dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
|
|
use dom::bindings::root::DomRoot;
|
|
use dom::webglrenderingcontext::WebGLRenderingContext;
|
|
use dom_struct::dom_struct;
|
|
use super::{WebGLExtension, WebGLExtensions};
|
|
|
|
#[dom_struct]
|
|
pub struct OESStandardDerivatives {
|
|
reflector_: Reflector,
|
|
}
|
|
|
|
impl OESStandardDerivatives {
|
|
fn new_inherited() -> OESStandardDerivatives {
|
|
Self {
|
|
reflector_: Reflector::new(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl WebGLExtension for OESStandardDerivatives {
|
|
type Extension = OESStandardDerivatives;
|
|
fn new(ctx: &WebGLRenderingContext) -> DomRoot<OESStandardDerivatives> {
|
|
reflect_dom_object(box OESStandardDerivatives::new_inherited(),
|
|
&*ctx.global(),
|
|
OESStandardDerivativesBinding::Wrap)
|
|
}
|
|
|
|
fn is_supported(ext: &WebGLExtensions) -> bool {
|
|
if cfg!(any(target_os = "android", target_os = "ios")) {
|
|
return ext.supports_any_gl_extension(&["GL_OES_standard_derivatives"]);
|
|
}
|
|
// The standard derivatives are always available in desktop OpenGL.
|
|
true
|
|
}
|
|
|
|
fn enable(ext: &WebGLExtensions) {
|
|
ext.enable_hint_target(OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
|
|
ext.enable_get_parameter_name(OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
|
|
}
|
|
|
|
fn name() -> &'static str {
|
|
"OES_standard_derivatives"
|
|
}
|
|
}
|