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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 canvas_traits::webgl::WebGLVersion;
use dom_struct::dom_struct;
use super::{WebGLExtension, WebGLExtensionSpec, WebGLExtensions};
use crate::dom::bindings::codegen::Bindings::ANGLEInstancedArraysBinding::{
ANGLEInstancedArraysConstants, ANGLEInstancedArraysMethods,
};
use crate::dom::bindings::reflector::{reflect_dom_object, DomGlobal, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::webglrenderingcontext::WebGLRenderingContext;
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct ANGLEInstancedArrays {
reflector_: Reflector,
ctx: Dom<WebGLRenderingContext>,
}
impl ANGLEInstancedArrays {
fn new_inherited(ctx: &WebGLRenderingContext) -> Self {
Self {
reflector_: Reflector::new(),
ctx: Dom::from_ref(ctx),
}
}
}
impl WebGLExtension for ANGLEInstancedArrays {
type Extension = Self;
fn new(ctx: &WebGLRenderingContext) -> DomRoot<Self> {
reflect_dom_object(
Box::new(ANGLEInstancedArrays::new_inherited(ctx)),
&*ctx.global(),
CanGc::note(),
)
}
fn spec() -> WebGLExtensionSpec {
WebGLExtensionSpec::Specific(WebGLVersion::WebGL1)
}
fn is_supported(ext: &WebGLExtensions) -> bool {
ext.supports_any_gl_extension(&[
"GL_ANGLE_instanced_arrays",
"GL_ARB_instanced_arrays",
"GL_EXT_instanced_arrays",
"GL_NV_instanced_arrays",
])
}
fn enable(ext: &WebGLExtensions) {
ext.enable_get_vertex_attrib_name(
ANGLEInstancedArraysConstants::VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE,
);
}
fn name() -> &'static str {
"ANGLE_instanced_arrays"
}
}
impl ANGLEInstancedArraysMethods<crate::DomTypeHolder> for ANGLEInstancedArrays {
// https://www.khronos.org/registry/webgl/extensions/ANGLE_instanced_arrays/
fn DrawArraysInstancedANGLE(&self, mode: u32, first: i32, count: i32, primcount: i32) {
handle_potential_webgl_error!(
self.ctx,
self.ctx
.draw_arrays_instanced(mode, first, count, primcount)
)
}
// https://www.khronos.org/registry/webgl/extensions/ANGLE_instanced_arrays/
fn DrawElementsInstancedANGLE(
&self,
mode: u32,
count: i32,
type_: u32,
offset: i64,
primcount: i32,
) {
handle_potential_webgl_error!(
self.ctx,
self.ctx
.draw_elements_instanced(mode, count, type_, offset, primcount)
)
}
fn VertexAttribDivisorANGLE(&self, index: u32, divisor: u32) {
self.ctx.vertex_attrib_divisor(index, divisor);
}
}
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