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script: Add CanvasContext trait (#35448)

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* trait `CanvasContext`

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

* fixup most stuff

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

* explain and limit crown `allow(crown::unrooted_must_root)`

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
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Samson 2025-02-21 21:26:27 +01:00 • committed by GitHub
parent 084006abb6
commit a6f19c0092
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12 changed files with 317 additions and 210 deletions
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38
components/script/dom/webgl2renderingcontext.rs
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@ -11,8 +11,8 @@ use std::rc::Rc;
use bitflags::bitflags;
use canvas_traits::webgl::WebGLError::*;
use canvas_traits::webgl::{
webgl_channel, GLContextAttributes, InternalFormatParameter, WebGLCommand, WebGLResult,
WebGLVersion,
webgl_channel, GLContextAttributes, InternalFormatParameter, WebGLCommand, WebGLContextId,
WebGLResult, WebGLVersion,
};
use dom_struct::dom_struct;
use euclid::default::{Point2D, Rect, Size2D};
@ -25,6 +25,7 @@ use script_layout_interface::HTMLCanvasDataSource;
use servo_config::pref;
use url::Host;
use crate::canvas_context::CanvasContext;
use crate::dom::bindings::codegen::Bindings::WebGL2RenderingContextBinding::{
WebGL2RenderingContextConstants as constants, WebGL2RenderingContextMethods,
};
@ -205,10 +206,6 @@ impl WebGL2RenderingContext {
static WEBGL2_ORIGINS: &[&str] = &["www.servoexperiments.com"];
impl WebGL2RenderingContext {
pub(crate) fn recreate(&self, size: Size2D<u32>) {
self.base.recreate(size)
}
pub(crate) fn current_vao(&self) -> DomRoot<WebGLVertexArrayObject> {
self.base.current_vao_webgl2()
}
@ -903,6 +900,35 @@ impl WebGL2RenderingContext {
}
}
impl CanvasContext for WebGL2RenderingContext {
type ID = WebGLContextId;
#[cfg_attr(crown, allow(crown::unrooted_must_root))] // Crown is wrong here #35570
fn context_id(&self) -> Self::ID {
self.base.context_id()
}
fn canvas(&self) -> HTMLCanvasElementOrOffscreenCanvas {
self.base.canvas().clone()
}
fn resize(&self) {
self.base.resize();
}
fn get_image_data_as_shared_memory(&self) -> Option<IpcSharedMemory> {
self.base.get_image_data_as_shared_memory()
}
fn get_image_data(&self) -> Option<Vec<u8>> {
self.base.get_image_data()
}
fn mark_as_dirty(&self) {
self.base.mark_as_dirty()
}
}
impl WebGL2RenderingContextMethods<crate::DomTypeHolder> for WebGL2RenderingContext {
/// <https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.1>
fn Canvas(&self) -> HTMLCanvasElementOrOffscreenCanvas {