Restructure public side of surfaces service.

mojo/services/public/interfaces/surfaces/surfaces.mojom

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-module mojo;
-
-import "mojo/services/public/interfaces/geometry/geometry.mojom";
-import "mojo/services/public/interfaces/gpu/command_buffer.mojom";
-import "mojo/services/public/interfaces/gpu/viewport_parameter_listener.mojom";
-import "mojo/services/public/interfaces/surfaces/quads.mojom";
-import "mojo/services/public/interfaces/surfaces/surface_id.mojom";
-
-enum ResourceFormat {
-  RGBA_8888,
-  RGBA_4444,
-  BGRA_8888,
-  ALPHA_8,
-  LUMINANCE_8,
-  RGB_565,
-  ETC1,
-};
-
-struct Mailbox {
-  array<int8, 64> name;
-};
-
-struct MailboxHolder {
-  Mailbox mailbox;
-  uint32 texture_target;
-  uint32 sync_point;
-};
-
-struct TransferableResource {
-  uint32 id;
-  ResourceFormat format;
-  uint32 filter;
-  Size size;
-  MailboxHolder mailbox_holder;
-  bool is_repeated;
-  bool is_software;
-};
-
-struct ReturnedResource {
-  uint32 id;
-  uint32 sync_point;
-  int32 count;
-  bool lost;
-};
-
-struct Frame {
-  array<TransferableResource> resources;
-  array<Pass> passes;
-};
-
-interface SurfaceClient {
-  ReturnResources(array<ReturnedResource> resources);
-};
-
-[Client=SurfaceClient]
-interface Surface {
-  // The id is created by the client and must be unique and contain the
-  // connection's namespace in the upper 32 bits.
-  CreateSurface(SurfaceId id, Size size);
-
-  // The client can only submit frames to surfaces created with this
-  // connection.  After the submitted frame is drawn for the first time, the
-  // surface will respond to the SubmitFrame message. Clients should use this
-  // acknowledgement to ratelimit frame submissions.
-  SubmitFrame(SurfaceId id, Frame frame) => ();
-  DestroySurface(SurfaceId id);
-
-  CreateGLES2BoundSurface(CommandBuffer gles2_client,
-                          SurfaceId id,
-                          Size size,
-                          ViewportParameterListener& listener);
-};