cc/test/fake_output_surface.cc

   1 // Copyright 2012 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 "cc/test/fake_output_surface.h"
   6
   7 #include "base/bind.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "cc/output/compositor_frame_ack.h"
  10 #include "cc/output/output_surface_client.h"
  11 #include "cc/resources/returned_resource.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace cc {
  15
  16 FakeOutputSurface::FakeOutputSurface(
  17     scoped_refptr<ContextProvider> context_provider,
  18     bool delegated_rendering)
  19     : OutputSurface(context_provider),
  20       client_(NULL),
  21       num_sent_frames_(0),
  22       needs_begin_frame_(false),
  23       forced_draw_to_software_device_(false),
  24       fake_weak_ptr_factory_(this) {
  25   if (delegated_rendering) {
  26     capabilities_.delegated_rendering = true;
  27     capabilities_.max_frames_pending = 1;
  28   }
  29 }
  30
  31 FakeOutputSurface::FakeOutputSurface(
  32     scoped_ptr<SoftwareOutputDevice> software_device, bool delegated_rendering)
  33     : OutputSurface(software_device.Pass()),
  34       client_(NULL),
  35       num_sent_frames_(0),
  36       forced_draw_to_software_device_(false),
  37       fake_weak_ptr_factory_(this) {
  38   if (delegated_rendering) {
  39     capabilities_.delegated_rendering = true;
  40     capabilities_.max_frames_pending = 1;
  41   }
  42 }
  43
  44 FakeOutputSurface::FakeOutputSurface(
  45     scoped_refptr<ContextProvider> context_provider,
  46     scoped_ptr<SoftwareOutputDevice> software_device,
  47     bool delegated_rendering)
  48     : OutputSurface(context_provider, software_device.Pass()),
  49       client_(NULL),
  50       num_sent_frames_(0),
  51       forced_draw_to_software_device_(false),
  52       fake_weak_ptr_factory_(this) {
  53   if (delegated_rendering) {
  54     capabilities_.delegated_rendering = true;
  55     capabilities_.max_frames_pending = 1;
  56   }
  57 }
  58
  59 FakeOutputSurface::~FakeOutputSurface() {}
  60
  61 void FakeOutputSurface::SwapBuffers(CompositorFrame* frame) {
  62   if (frame->software_frame_data || frame->delegated_frame_data ||
  63       !context_provider()) {
  64     frame->AssignTo(&last_sent_frame_);
  65
  66     if (last_sent_frame_.delegated_frame_data) {
  67       resources_held_by_parent_.insert(
  68           resources_held_by_parent_.end(),
  69           last_sent_frame_.delegated_frame_data->resource_list.begin(),
  70           last_sent_frame_.delegated_frame_data->resource_list.end());
  71     }
  72
  73     ++num_sent_frames_;
  74     PostSwapBuffersComplete();
  75     DidSwapBuffers();
  76   } else {
  77     OutputSurface::SwapBuffers(frame);
  78     frame->AssignTo(&last_sent_frame_);
  79     ++num_sent_frames_;
  80   }
  81 }
  82
  83 void FakeOutputSurface::SetNeedsBeginFrame(bool enable) {
  84   needs_begin_frame_ = enable;
  85   OutputSurface::SetNeedsBeginFrame(enable);
  86
  87   // If there is not BeginFrame emulation from the FrameRateController,
  88   // then we just post a BeginFrame to emulate it as part of the test.
  89   if (enable && !frame_rate_controller_) {
  90     base::MessageLoop::current()->PostDelayedTask(
  91         FROM_HERE, base::Bind(&FakeOutputSurface::OnBeginFrame,
  92                               fake_weak_ptr_factory_.GetWeakPtr()),
  93         base::TimeDelta::FromMilliseconds(16));
  94   }
  95 }
  96
  97 void FakeOutputSurface::OnBeginFrame() {
  98   OutputSurface::BeginFrame(BeginFrameArgs::CreateForTesting());
  99 }
 100
 101
 102 bool FakeOutputSurface::ForcedDrawToSoftwareDevice() const {
 103   return forced_draw_to_software_device_;
 104 }
 105
 106 bool FakeOutputSurface::BindToClient(OutputSurfaceClient* client) {
 107   if (OutputSurface::BindToClient(client)) {
 108     client_ = client;
 109     return true;
 110   } else {
 111     return false;
 112   }
 113 }
 114
 115 void FakeOutputSurface::SetTreeActivationCallback(
 116     const base::Closure& callback) {
 117   DCHECK(client_);
 118   client_->SetTreeActivationCallback(callback);
 119 }
 120
 121 void FakeOutputSurface::ReturnResource(unsigned id, CompositorFrameAck* ack) {
 122   TransferableResourceArray::iterator it;
 123   for (it = resources_held_by_parent_.begin();
 124        it != resources_held_by_parent_.end();
 125        ++it) {
 126     if (it->id == id)
 127       break;
 128   }
 129   DCHECK(it != resources_held_by_parent_.end());
 130   ack->resources.push_back(it->ToReturnedResource());
 131   resources_held_by_parent_.erase(it);
 132 }
 133
 134 }  // namespace cc