script/dom/webgl/extensions/ext/
oestexturefloat.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use dom_struct::dom_struct;
6use js::context::JSContext;
7use script_bindings::reflector::{Reflector, reflect_dom_object_with_cx};
8use servo_canvas_traits::webgl::{TexFormat, WebGLVersion};
9
10use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions, constants as webgl};
11use crate::dom::bindings::reflector::DomGlobal;
12use crate::dom::bindings::root::DomRoot;
13use crate::dom::webgl::webglrenderingcontext::WebGLRenderingContext;
14
15#[dom_struct]
16pub(crate) struct OESTextureFloat {
17    reflector_: Reflector,
18}
19
20impl OESTextureFloat {
21    fn new_inherited() -> OESTextureFloat {
22        Self {
23            reflector_: Reflector::new(),
24        }
25    }
26}
27
28impl WebGLExtension for OESTextureFloat {
29    type Extension = OESTextureFloat;
30    fn new(cx: &mut JSContext, ctx: &WebGLRenderingContext) -> DomRoot<OESTextureFloat> {
31        reflect_dom_object_with_cx(Box::new(Self::new_inherited()), &*ctx.global(), cx)
32    }
33
34    fn spec() -> WebGLExtensionSpec {
35        WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
36    }
37
38    fn is_supported(ext: &WebGLExtensions) -> bool {
39        ext.supports_any_gl_extension(&[
40            "GL_OES_texture_float",
41            "GL_ARB_texture_float",
42            "GL_EXT_color_buffer_float",
43        ])
44    }
45
46    fn enable(ext: &WebGLExtensions) {
47        ext.enable_tex_type(webgl::FLOAT);
48        ext.add_effective_tex_internal_format(TexFormat::RGBA, webgl::FLOAT, TexFormat::RGBA32f);
49        ext.add_effective_tex_internal_format(TexFormat::RGB, webgl::FLOAT, TexFormat::RGB32f);
50        ext.add_effective_tex_internal_format(
51            TexFormat::Luminance,
52            webgl::FLOAT,
53            TexFormat::Luminance32f,
54        );
55        ext.add_effective_tex_internal_format(TexFormat::Alpha, webgl::FLOAT, TexFormat::Alpha32f);
56        ext.add_effective_tex_internal_format(
57            TexFormat::LuminanceAlpha,
58            webgl::FLOAT,
59            TexFormat::LuminanceAlpha32f,
60        );
61    }
62
63    fn name() -> &'static str {
64        "OES_texture_float"
65    }
66}
script/dom/webgl/extensions/ext/oestexturefloat.rs

script/dom/webgl/extensions/ext/
oestexturefloat.rs
