summaryrefslogtreecommitdiffstats
path: root/gfx/ipc/PCanvasManager.ipdl
diff options
context:
space:
mode:
Diffstat (limited to 'gfx/ipc/PCanvasManager.ipdl')
-rw-r--r--gfx/ipc/PCanvasManager.ipdl48
1 files changed, 48 insertions, 0 deletions
diff --git a/gfx/ipc/PCanvasManager.ipdl b/gfx/ipc/PCanvasManager.ipdl
new file mode 100644
index 0000000000..9a75a2b2b0
--- /dev/null
+++ b/gfx/ipc/PCanvasManager.ipdl
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+include "mozilla/layers/LayersMessageUtils.h";
+include protocol PWebGL;
+include protocol PWebGPU;
+
+using mozilla::layers::RemoteTextureOwnerId from "mozilla/layers/LayersTypes.h";
+using mozilla::webgl::FrontBufferSnapshotIpc from "mozilla/dom/WebGLIpdl.h";
+
+namespace mozilla {
+namespace gfx {
+
+/**
+ * The PCanvasManager protocol is the top-level protocol between the main and
+ * worker threads in the content process, and the renderer thread in the
+ * compositor process. This protocol should be used to create accelerated
+ * canvas instances.
+ */
+[NeedsOtherPid]
+sync protocol PCanvasManager
+{
+ manages PWebGL;
+ manages PWebGPU;
+
+parent:
+ // Actor that represents one WebGL context.
+ async PWebGL();
+
+ // Actor that represents one WebGPU context.
+ async PWebGPU();
+
+ // Set the local manager ID for the canvas manager.
+ async Initialize(uint32_t aManagerId);
+
+ // Get the front buffer pixels for the given manager/protocol. This is
+ // intended to be used by the main thread in the content process to block
+ // reading without having to block on the worker thread that owns the context
+ // instance.
+ sync GetSnapshot(uint32_t aManagerId, int32_t aProtocolId, RemoteTextureOwnerId? ownerId) returns (FrontBufferSnapshotIpc ret);
+};
+
+} // gfx
+} // mozilla