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Don't delete GL textures created by WebXR

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This commit is contained in:
Alan Jeffrey 2020-07-29 17:06:45 -05:00
parent 0d77e0f6cf
commit dfc641d648
2 changed files with 38 additions and 4 deletions
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38
components/script/dom/webgltexture.rs
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@ -29,6 +29,14 @@ pub enum TexParameterValue {
Bool(bool),
}
// Textures generated for WebXR are owned by the WebXR device, not by the WebGL thread
// so the GL texture should not be deleted when the texture is garbage collected.
#[derive(Clone, Copy, Debug, Eq, JSTraceable, MallocSizeOf, PartialEq)]
enum WebGLTextureOwner {
WebGL,
WebXR,
}
const MAX_LEVEL_COUNT: usize = 31;
const MAX_FACE_COUNT: usize = 6;
@ -41,6 +49,7 @@ pub struct WebGLTexture {
/// The target to which this texture was bound the first time
target: Cell<Option<u32>>,
is_deleted: Cell<bool>,
owner: WebGLTextureOwner,
/// Stores information about mipmap levels and cubemap faces.
#[ignore_malloc_size_of = "Arrays are cumbersome"]
image_info_array: DomRefCell<[Option<ImageInfo>; MAX_LEVEL_COUNT * MAX_FACE_COUNT]>,
@ -59,12 +68,17 @@ pub struct WebGLTexture {
}
impl WebGLTexture {
fn new_inherited(context: &WebGLRenderingContext, id: WebGLTextureId) -> Self {
fn new_inherited(
context: &WebGLRenderingContext,
id: WebGLTextureId,
owner: WebGLTextureOwner,
) -> Self {
Self {
webgl_object: WebGLObject::new_inherited(context),
id: id,
target: Cell::new(None),
is_deleted: Cell::new(false),
owner: owner,
immutable_levels: Cell::new(None),
face_count: Cell::new(0),
base_mipmap_level: 0,
@ -87,7 +101,22 @@ impl WebGLTexture {
pub fn new(context: &WebGLRenderingContext, id: WebGLTextureId) -> DomRoot<Self> {
reflect_dom_object(
Box::new(WebGLTexture::new_inherited(context, id)),
Box::new(WebGLTexture::new_inherited(
context,
id,
WebGLTextureOwner::WebGL,
)),
&*context.global(),
)
}
pub fn new_webxr(context: &WebGLRenderingContext, id: WebGLTextureId) -> DomRoot<Self> {
reflect_dom_object(
Box::new(WebGLTexture::new_inherited(
context,
id,
WebGLTextureOwner::WebXR,
)),
&*context.global(),
)
}
@ -216,6 +245,11 @@ impl WebGLTexture {
let _ = fb.detach_texture(self);
}
// We don't delete textures owned by WebXR
if self.owner == WebGLTextureOwner::WebXR {
return;
}
let cmd = WebGLCommand::DeleteTexture(self.id);
match operation_fallibility {
Operation::Fallible => context.send_command_ignored(cmd),