/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 protocol PCompositorBridge;

using mozilla::CSSToLayoutDeviceScale from "Units.h";
using mozilla::gfx::IntSize from "mozilla/gfx/2D.h";

namespace mozilla {
namespace gfx {

union GfxPrefValue {
  bool;
  int32_t;
  uint32_t;
  float;
};

struct GfxPrefSetting {
  int32_t index;
  GfxPrefValue value;
};

sync protocol PGPU
{
parent:
  // Sent by the UI process to initiate core settings.
  async Init(GfxPrefSetting[] prefs);

  // Called to update a gfx preference.
  async UpdatePref(GfxPrefSetting pref);

  // Create a new top-level compositor.
  async NewWidgetCompositor(Endpoint<PCompositorBridgeParent> endpoint,
                            CSSToLayoutDeviceScale scale,
                            bool useExternalSurface,
                            IntSize surfaceSize);
};

} // namespace gfx
} // namespace mozilla