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 "content/browser/compositor/surface_display_output_surface.h"
6
7#include "cc/output/compositor_frame.h"
8#include "cc/output/compositor_frame_ack.h"
9#include "cc/surfaces/display.h"
10#include "cc/surfaces/surface.h"
11#include "cc/surfaces/surface_manager.h"
12
13namespace content {
14
15SurfaceDisplayOutputSurface::SurfaceDisplayOutputSurface(
16    cc::SurfaceManager* surface_manager,
17    uint32_t surface_id_namespace,
18    const scoped_refptr<cc::ContextProvider>& context_provider)
19    : cc::OutputSurface(context_provider,
20                        scoped_ptr<cc::SoftwareOutputDevice>()),
21      display_(NULL),
22      surface_manager_(surface_manager),
23      factory_(surface_manager, this),
24      allocator_(surface_id_namespace) {
25  capabilities_.delegated_rendering = true;
26  capabilities_.max_frames_pending = 1;
27}
28
29SurfaceDisplayOutputSurface::~SurfaceDisplayOutputSurface() {
30  client_ = NULL;
31  if (!surface_id_.is_null()) {
32    factory_.Destroy(surface_id_);
33  }
34}
35
36void SurfaceDisplayOutputSurface::ReceivedVSyncParameters(
37    base::TimeTicks timebase,
38    base::TimeDelta interval) {
39  CommitVSyncParameters(timebase, interval);
40}
41
42void SurfaceDisplayOutputSurface::SwapBuffers(cc::CompositorFrame* frame) {
43  gfx::Size frame_size =
44      frame->delegated_frame_data->render_pass_list.back()->output_rect.size();
45  if (frame_size != display_size_) {
46    if (!surface_id_.is_null()) {
47      factory_.Destroy(surface_id_);
48    }
49    surface_id_ = allocator_.GenerateId();
50    factory_.Create(surface_id_, frame_size);
51    display_size_ = frame_size;
52    display_->Resize(surface_id_, frame_size);
53  }
54
55  scoped_ptr<cc::CompositorFrame> frame_copy(new cc::CompositorFrame());
56  frame->AssignTo(frame_copy.get());
57  factory_.SubmitFrame(
58      surface_id_,
59      frame_copy.Pass(),
60      base::Bind(&SurfaceDisplayOutputSurface::SwapBuffersComplete,
61                 base::Unretained(this)));
62
63  client_->DidSwapBuffers();
64}
65
66void SurfaceDisplayOutputSurface::ReturnResources(
67    const cc::ReturnedResourceArray& resources) {
68  cc::CompositorFrameAck ack;
69  ack.resources = resources;
70  if (client_)
71    client_->ReclaimResources(&ack);
72}
73
74void SurfaceDisplayOutputSurface::SwapBuffersComplete() {
75  client_->DidSwapBuffersComplete();
76}
77
78}  // namespace content
79