servo/components/compositing/lib.rs
Delan Azabani 17f3c45d4f
Add initial support for offscreen rendering (#30767)
* Offscreen rendering

* shared memory case never actually rendered to backbuffer

* fix compile errors (in theory) when gl crate feature disabled

* update doc comments

* remove dark CentralPanel border covering edges of viewport

* clear to transparent, to avoid pink artifacts

* fix mouse input for browser being consumed by egui

* avoid destroying OpenGL resources unless resizing window

* clean up compositing::gl

* fix flickering around edges after resizing window

* unset invalidate_last_render_target after invalidating

* fix incorrect DRAW_FRAMEBUFFER name when blitting

* bind the widget surface fbo before painting egui

* make composite_specific_target take CompositeTarget, not Option

* compositing: remove cargo feature “gl”

* capitalise FBO in bind log message

Co-authored-by: Martin Robinson <mrobinson@igalia.com>

* capitalise FBO in drop log message

Co-authored-by: Martin Robinson <mrobinson@igalia.com>

* rename RenderTargetInfo fields and use OnceCell for next field

* rename RenderTargetInfo.read to read_back_from_gpu

* document servo_framebuffer_id in Minibrowser::update

* rename needs_fbo to use_offscreen_framebuffer

* capitalise FBO in unbind log message

* clarify the purpose of Minibrowser::on_event

* fix unused_must_use warning

* reduce nesting in Minibrowser::update

* use implicit format argument in panic

* store Minibrowser.widget_surface_fbo as glow type

* explain why servo_framebuffer_id is None in first call site

* rename output_framebuffer_id to offscreen_framebuffer_id

---------

Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2023-12-13 02:49:25 +00:00

42 lines
1.4 KiB
Rust

/* 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/. */
#![deny(unsafe_code)]
use std::rc::Rc;
use compositing_traits::{CompositorProxy, CompositorReceiver, ConstellationMsg};
use crossbeam_channel::Sender;
use profile_traits::{mem, time};
use webrender::RenderApi;
use webrender_api::DocumentId;
use webrender_surfman::WebrenderSurfman;
pub use crate::compositor::{CompositeTarget, IOCompositor, ShutdownState};
mod compositor;
mod gl;
mod touch;
pub mod windowing;
/// Data used to construct a compositor.
pub struct InitialCompositorState {
/// A channel to the compositor.
pub sender: CompositorProxy,
/// A port on which messages inbound to the compositor can be received.
pub receiver: CompositorReceiver,
/// A channel to the constellation.
pub constellation_chan: Sender<ConstellationMsg>,
/// A channel to the time profiler thread.
pub time_profiler_chan: time::ProfilerChan,
/// A channel to the memory profiler thread.
pub mem_profiler_chan: mem::ProfilerChan,
/// Instance of webrender API
pub webrender: webrender::Renderer,
pub webrender_document: DocumentId,
pub webrender_api: RenderApi,
pub webrender_surfman: WebrenderSurfman,
pub webrender_gl: Rc<dyn gleam::gl::Gl>,
pub webxr_main_thread: webxr::MainThreadRegistry,
}