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aa15dc269f
http://www.robohornet.org gives a score of 101.36 on master, and 102.68 with this PR. The latter is slightly better, but probably within noise level. So it looks like this PR does not affect DOM performance. This is expected since `Box::new` is defined as: ```rust impl<T> Box<T> { #[inline(always)] pub fn new(x: T) -> Box<T> { box x } } ``` With inlining, it should compile to the same as box syntax.
57 lines
2.2 KiB
Rust
57 lines
2.2 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 dom::bindings::codegen::Bindings::OESTextureFloatBinding;
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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::{constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensions};
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#[dom_struct]
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pub struct OESTextureFloat {
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reflector_: Reflector,
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}
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impl OESTextureFloat {
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fn new_inherited() -> OESTextureFloat {
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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 OESTextureFloat {
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type Extension = OESTextureFloat;
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fn new(ctx: &WebGLRenderingContext) -> DomRoot<OESTextureFloat> {
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reflect_dom_object(Box::new(OESTextureFloat::new_inherited()),
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&*ctx.global(),
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OESTextureFloatBinding::Wrap)
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}
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fn is_supported(ext: &WebGLExtensions) -> bool {
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ext.supports_any_gl_extension(&["GL_OES_texture_float",
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"GL_ARB_texture_float",
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"GL_EXT_color_buffer_float"])
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}
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fn enable(ext: &WebGLExtensions) {
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// Enable FLOAT text data type
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ext.enable_tex_type(webgl::FLOAT);
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let needs_replace = !ext.supports_gl_extension("GL_OES_texture_float");
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if needs_replace {
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// Special internal formats must be used to avoid clamped float values
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ext.add_effective_tex_internal_format(webgl::RGBA, webgl::FLOAT, gl::RGBA32F);
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ext.add_effective_tex_internal_format(webgl::RGB, webgl::FLOAT, gl::RGB32F);
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ext.add_effective_tex_internal_format(webgl::LUMINANCE, webgl::FLOAT, gl::LUMINANCE32F_ARB);
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ext.add_effective_tex_internal_format(webgl::ALPHA, webgl::FLOAT, gl::ALPHA32F_ARB);
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ext.add_effective_tex_internal_format(webgl::LUMINANCE_ALPHA, webgl::FLOAT,
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gl::LUMINANCE_ALPHA32F_ARB);
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}
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}
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fn name() -> &'static str {
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"OES_texture_float"
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}
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}
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