script/dom/webgl/extensions/ext/
oestexturehalffloat.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 canvas_traits::webgl::{TexFormat, WebGLVersion};
6use dom_struct::dom_struct;
7
8use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
9use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::OESTextureHalfFloatConstants;
10use crate::dom::bindings::reflector::{DomGlobal, Reflector, reflect_dom_object};
11use crate::dom::bindings::root::DomRoot;
12use crate::dom::webgl::webglrenderingcontext::WebGLRenderingContext;
13use crate::script_runtime::CanGc;
14
15#[dom_struct]
16pub(crate) struct OESTextureHalfFloat {
17    reflector_: Reflector,
18}
19
20impl OESTextureHalfFloat {
21    fn new_inherited() -> OESTextureHalfFloat {
22        Self {
23            reflector_: Reflector::new(),
24        }
25    }
26}
27
28impl WebGLExtension for OESTextureHalfFloat {
29    type Extension = OESTextureHalfFloat;
30    fn new(ctx: &WebGLRenderingContext, can_gc: CanGc) -> DomRoot<OESTextureHalfFloat> {
31        reflect_dom_object(
32            Box::new(OESTextureHalfFloat::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_half_float",
45            "GL_ARB_half_float_pixel",
46            "GL_NV_half_float",
47            "GL_EXT_color_buffer_half_float",
48        ])
49    }
50
51    fn enable(ext: &WebGLExtensions) {
52        let hf = OESTextureHalfFloatConstants::HALF_FLOAT_OES;
53        ext.enable_tex_type(hf);
54        ext.add_effective_tex_internal_format(TexFormat::RGBA, hf, TexFormat::RGBA16f);
55        ext.add_effective_tex_internal_format(TexFormat::RGB, hf, TexFormat::RGB16f);
56        ext.add_effective_tex_internal_format(TexFormat::Luminance, hf, TexFormat::Luminance16f);
57        ext.add_effective_tex_internal_format(TexFormat::Alpha, hf, TexFormat::Alpha16f);
58        ext.add_effective_tex_internal_format(
59            TexFormat::LuminanceAlpha,
60            hf,
61            TexFormat::LuminanceAlpha16f,
62        );
63    }
64
65    fn name() -> &'static str {
66        "OES_texture_half_float"
67    }
68}
script/dom/webgl/extensions/ext/oestexturehalffloat.rs

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