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Remove the DOMToTexture feature

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This relies on WebRender's frame output API, `set_output_image_handler`,
which has been removed from the latest upstream [1]. It's sad to remove
this feature, which was probably a lot of work to implement, but it
seems difficult to patch WebRender to restore this functionality.

Fixes #29936.

1. https://hg.mozilla.org/mozilla-central/rev/361521e3c52324809553c555fb066d50f023d9bf
This commit is contained in:
Martin Robinson 2023-06-26 16:35:03 +02:00
parent 234d507234
commit ec3b2826ae
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GPG key ID: D56AA4FA55EFE6F8
10 changed files with 36 additions and 304 deletions
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15
components/script/dom/webgltexture.rs
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@ -20,7 +20,7 @@ use canvas_traits::webgl::{
webgl_channel, TexDataType, TexFormat, TexParameter, TexParameterBool, TexParameterInt,
WebGLResult, WebGLTextureId,
};
use canvas_traits::webgl::{DOMToTextureCommand, WebGLCommand, WebGLError};
use canvas_traits::webgl::{WebGLCommand, WebGLError};
use dom_struct::dom_struct;
use std::cell::Cell;
use std::cmp;
@ -62,8 +62,6 @@ pub struct WebGLTexture {
// Store information for min and mag filters
min_filter: Cell<u32>,
mag_filter: Cell<u32>,
/// True if this texture is used for the DOMToTexture feature.
attached_to_dom: Cell<bool>,
/// Framebuffer that this texture is attached to.
attached_framebuffer: MutNullableDom<WebGLFramebuffer>,
/// Number of immutable levels.
@ -90,7 +88,6 @@ impl WebGLTexture {
min_filter: Cell::new(constants::NEAREST_MIPMAP_LINEAR),
mag_filter: Cell::new(constants::LINEAR),
image_info_array: DomRefCell::new([None; MAX_LEVEL_COUNT * MAX_FACE_COUNT]),
attached_to_dom: Cell::new(false),
attached_framebuffer: Default::default(),
}
}
@ -224,12 +221,6 @@ impl WebGLTexture {
if !self.is_deleted.get() {
self.is_deleted.set(true);
let context = self.upcast::<WebGLObject>().context();
// Notify WR to release the frame output when using DOMToTexture feature
if self.attached_to_dom.get() {
let _ = context
.webgl_sender()
.send_dom_to_texture(DOMToTextureCommand::Detach(self.id));
}
/*
If a texture object is deleted while its image is attached to one or more attachment
@ -469,10 +460,6 @@ impl WebGLTexture {
self.image_info_at_face(0, self.base_mipmap_level)
}
pub fn set_attached_to_dom(&self) {
self.attached_to_dom.set(true);
}
pub fn attach_to_framebuffer(&self, fb: &WebGLFramebuffer) {
self.attached_framebuffer.set(Some(fb));
}