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Implement DOM to texture

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This commit is contained in:
Imanol Fernandez 2017-09-21 15:16:46 +02:00
parent a9022be0c3
commit 8ae0739bab
17 changed files with 238 additions and 13 deletions
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12
components/script/dom/webgltexture.rs
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@ -5,6 +5,7 @@
// https://www.khronos.org/registry/webgl/specs/latest/1.0/webgl.idl
use canvas_traits::webgl::{webgl_channel, WebGLCommand, WebGLError, WebGLMsgSender, WebGLResult, WebGLTextureId};
use canvas_traits::webgl::DOMToTextureCommand;
use dom::bindings::cell::DomRefCell;
use dom::bindings::codegen::Bindings::WebGLRenderingContextBinding::WebGLRenderingContextConstants as constants;
use dom::bindings::codegen::Bindings::WebGLTextureBinding;
@ -45,6 +46,8 @@ pub struct WebGLTexture {
mag_filter: Cell<Option<u32>>,
#[ignore_heap_size_of = "Defined in ipc-channel"]
renderer: WebGLMsgSender,
/// True if this texture is used for the DOMToTexture feature.
attached_to_dom: Cell<bool>,
}
impl WebGLTexture {
@ -62,6 +65,7 @@ impl WebGLTexture {
mag_filter: Cell::new(None),
image_info_array: DomRefCell::new([ImageInfo::new(); MAX_LEVEL_COUNT * MAX_FACE_COUNT]),
renderer: renderer,
attached_to_dom: Cell::new(false),
}
}
@ -179,6 +183,10 @@ impl WebGLTexture {
pub fn delete(&self) {
if !self.is_deleted.get() {
self.is_deleted.set(true);
// Notify WR to release the frame output when using DOMToTexture feature
if self.attached_to_dom.get() {
let _ = self.renderer.send_dom_to_texture(DOMToTextureCommand::Detach(self.id));
}
let _ = self.renderer.send(WebGLCommand::DeleteTexture(self.id));
}
}
@ -374,6 +382,10 @@ impl WebGLTexture {
Some(self.image_info_at_face(0, self.base_mipmap_level))
}
pub fn set_attached_to_dom(&self) {
self.attached_to_dom.set(true);
}
}
impl Drop for WebGLTexture {