1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "mojo/cc/output_surface_mojo.h"
6
7#include "cc/output/compositor_frame.h"
8#include "cc/output/output_surface_client.h"
9#include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
10#include "mojo/services/public/cpp/surfaces/surfaces_type_converters.h"
11
12namespace mojo {
13
14OutputSurfaceMojo::OutputSurfaceMojo(
15    OutputSurfaceMojoClient* client,
16    const scoped_refptr<cc::ContextProvider>& context_provider,
17    SurfacePtr surface,
18    uint32_t id_namespace)
19    : cc::OutputSurface(context_provider),
20      output_surface_mojo_client_(client),
21      surface_(surface.Pass()),
22      id_allocator_(id_namespace) {
23  capabilities_.delegated_rendering = true;
24  capabilities_.max_frames_pending = 1;
25}
26
27OutputSurfaceMojo::~OutputSurfaceMojo() {
28}
29
30void OutputSurfaceMojo::ReturnResources(Array<ReturnedResourcePtr> resources) {
31}
32
33bool OutputSurfaceMojo::BindToClient(cc::OutputSurfaceClient* client) {
34  surface_.set_client(this);
35  return cc::OutputSurface::BindToClient(client);
36}
37
38void OutputSurfaceMojo::SwapBuffers(cc::CompositorFrame* frame) {
39  gfx::Size frame_size =
40      frame->delegated_frame_data->render_pass_list.back()->output_rect.size();
41  if (frame_size != surface_size_) {
42    if (!surface_id_.is_null()) {
43      surface_->DestroySurface(SurfaceId::From(surface_id_));
44    }
45    surface_id_ = id_allocator_.GenerateId();
46    surface_->CreateSurface(SurfaceId::From(surface_id_),
47                            Size::From(frame_size));
48    output_surface_mojo_client_->DidCreateSurface(surface_id_);
49    surface_size_ = frame_size;
50  }
51
52  surface_->SubmitFrame(SurfaceId::From(surface_id_), Frame::From(*frame));
53
54  client_->DidSwapBuffers();
55  client_->DidSwapBuffersComplete();
56}
57
58}  // namespace mojo
59