forked from mirrors/gecko-dev
0cd9bd902c
<!-- Please describe your changes on the following line: --> Add support for filtering WebGL extensions based on WebGL version --- <!-- 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 _____ <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- 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: 63af764fc5349e213c42d2007b0bff5d310b3422 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 7b927526b386d4f97ecce151c5e636ebff513318
55 lines
2 KiB
Rust
55 lines
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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use canvas_traits::webgl::WebGLVersion;
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use dom::bindings::codegen::Bindings::OESStandardDerivativesBinding;
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use dom::bindings::codegen::Bindings::OESStandardDerivativesBinding::OESStandardDerivativesConstants;
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use dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
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use dom::bindings::root::DomRoot;
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use dom::webglrenderingcontext::WebGLRenderingContext;
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use dom_struct::dom_struct;
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use super::{WebGLExtension, WebGLExtensions, WebGLExtensionSpec};
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#[dom_struct]
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pub struct OESStandardDerivatives {
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reflector_: Reflector,
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}
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impl OESStandardDerivatives {
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fn new_inherited() -> OESStandardDerivatives {
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Self {
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reflector_: Reflector::new(),
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}
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}
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}
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impl WebGLExtension for OESStandardDerivatives {
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type Extension = OESStandardDerivatives;
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fn new(ctx: &WebGLRenderingContext) -> DomRoot<OESStandardDerivatives> {
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reflect_dom_object(Box::new(OESStandardDerivatives::new_inherited()),
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&*ctx.global(),
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OESStandardDerivativesBinding::Wrap)
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}
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fn spec() -> WebGLExtensionSpec {
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WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
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}
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fn is_supported(ext: &WebGLExtensions) -> bool {
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if cfg!(any(target_os = "android", target_os = "ios")) {
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return ext.supports_any_gl_extension(&["GL_OES_standard_derivatives"]);
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}
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// The standard derivatives are always available in desktop OpenGL.
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true
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}
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fn enable(ext: &WebGLExtensions) {
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ext.enable_hint_target(OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
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ext.enable_get_parameter_name(OESStandardDerivativesConstants::FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
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}
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fn name() -> &'static str {
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"OES_standard_derivatives"
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}
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}
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