1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use super::{
constants as webgl, ext_constants as gl, WebGLExtension, WebGLExtensionSpec, WebGLExtensions,
};
use canvas_traits::webgl::WebGLVersion;
use crate::dom::bindings::codegen::Bindings::OESTextureHalfFloatBinding::{
self, OESTextureHalfFloatConstants,
};
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
use dom_struct::dom_struct;
#[dom_struct]
pub struct OESTextureHalfFloat {
reflector_: Reflector,
}
impl OESTextureHalfFloat {
fn new_inherited() -> OESTextureHalfFloat {
Self {
reflector_: Reflector::new(),
}
}
}
impl WebGLExtension for OESTextureHalfFloat {
type Extension = OESTextureHalfFloat;
fn new(ctx: &WebGLRenderingContext) -> DomRoot<OESTextureHalfFloat> {
reflect_dom_object(
Box::new(OESTextureHalfFloat::new_inherited()),
&*ctx.global(),
OESTextureHalfFloatBinding::Wrap,
)
}
fn spec() -> WebGLExtensionSpec {
WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
}
fn is_supported(ext: &WebGLExtensions) -> bool {
ext.supports_any_gl_extension(&[
"GL_OES_texture_half_float",
"GL_ARB_half_float_pixel",
"GL_NV_half_float",
"GL_EXT_color_buffer_half_float",
])
}
fn enable(ext: &WebGLExtensions) {
let hf = OESTextureHalfFloatConstants::HALF_FLOAT_OES;
ext.enable_tex_type(hf);
if !ext.supports_gl_extension("GL_OES_texture_half_float") {
ext.add_effective_tex_internal_format(webgl::RGBA, hf, gl::RGBA16F);
ext.add_effective_tex_internal_format(webgl::RGB, hf, gl::RGB16F);
ext.add_effective_tex_internal_format(webgl::LUMINANCE, hf, gl::LUMINANCE16F_ARB);
ext.add_effective_tex_internal_format(webgl::ALPHA, hf, gl::ALPHA16F_ARB);
ext.add_effective_tex_internal_format(
webgl::LUMINANCE_ALPHA,
hf,
gl::LUMINANCE_ALPHA16F_ARB,
);
}
}
fn name() -> &'static str {
"OES_texture_half_float"
}
}
|
