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/* 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::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
use crate::dom::webgltexture::{TexCompression, TexCompressionValidation};
use canvas_traits::webgl::{TexFormat, WebGLVersion};
use dom_struct::dom_struct;
#[dom_struct]
pub struct WEBGLCompressedTextureETC1 {
reflector_: Reflector,
}
impl WEBGLCompressedTextureETC1 {
fn new_inherited() -> WEBGLCompressedTextureETC1 {
Self {
reflector_: Reflector::new(),
}
}
}
impl WebGLExtension for WEBGLCompressedTextureETC1 {
type Extension = WEBGLCompressedTextureETC1;
fn new(ctx: &WebGLRenderingContext) -> DomRoot<WEBGLCompressedTextureETC1> {
reflect_dom_object(
Box::new(WEBGLCompressedTextureETC1::new_inherited()),
&*ctx.global(),
)
}
fn spec() -> WebGLExtensionSpec {
WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
}
fn is_supported(ext: &WebGLExtensions) -> bool {
ext.supports_gl_extension("GL_OES_compressed_ETC1_RGB8_texture")
}
fn enable(ext: &WebGLExtensions) {
ext.add_tex_compression_formats(&[TexCompression {
format: TexFormat::CompressedRgbEtc1,
bytes_per_block: 8,
block_width: 4,
block_height: 4,
validation: TexCompressionValidation::None,
}]);
}
fn name() -> &'static str {
"WEBGL_compressed_texture_etc1"
}
}
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