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 script_bindings::reflector::{Reflector, reflect_dom_object};
7use servo_canvas_traits::webgl::{TexFormat, WebGLVersion};
8
9use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions, constants as webgl};
10use crate::dom::bindings::reflector::DomGlobal;
11use crate::dom::bindings::root::DomRoot;
12use crate::dom::webgl::webglrenderingcontext::WebGLRenderingContext;
13use crate::script_runtime::CanGc;
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(ctx: &WebGLRenderingContext, can_gc: CanGc) -> DomRoot<OESTextureFloat> {
31        reflect_dom_object(
32            Box::new(OESTextureFloat::new_inherited()),
33            &*ctx.global(),
34            can_gc,
35        )
36    }
37
38    fn spec() -> WebGLExtensionSpec {
39        WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
40    }
41
42    fn is_supported(ext: &WebGLExtensions) -> bool {
43        ext.supports_any_gl_extension(&[
44            "GL_OES_texture_float",
45            "GL_ARB_texture_float",
46            "GL_EXT_color_buffer_float",
47        ])
48    }
49
50    fn enable(ext: &WebGLExtensions) {
51        ext.enable_tex_type(webgl::FLOAT);
52        ext.add_effective_tex_internal_format(TexFormat::RGBA, webgl::FLOAT, TexFormat::RGBA32f);
53        ext.add_effective_tex_internal_format(TexFormat::RGB, webgl::FLOAT, TexFormat::RGB32f);
54        ext.add_effective_tex_internal_format(
55            TexFormat::Luminance,
56            webgl::FLOAT,
57            TexFormat::Luminance32f,
58        );
59        ext.add_effective_tex_internal_format(TexFormat::Alpha, webgl::FLOAT, TexFormat::Alpha32f);
60        ext.add_effective_tex_internal_format(
61            TexFormat::LuminanceAlpha,
62            webgl::FLOAT,
63            TexFormat::LuminanceAlpha32f,
64        );
65    }
66
67    fn name() -> &'static str {
68        "OES_texture_float"
69    }
70}
script/dom/webgl/extensions/ext/oestexturefloat.rs

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