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      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 "testing/gtest/include/gtest/gtest.h"
     12 
     13 namespace cc {
     14 
     15 FakeOutputSurface::FakeOutputSurface(
     16     scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
     17     bool delegated_rendering)
     18     : OutputSurface(context3d.Pass()),
     19       client_(NULL),
     20       num_sent_frames_(0),
     21       needs_begin_frame_(false),
     22       forced_draw_to_software_device_(false),
     23       fake_weak_ptr_factory_(this) {
     24   if (delegated_rendering) {
     25     capabilities_.delegated_rendering = true;
     26     capabilities_.max_frames_pending = 1;
     27   }
     28 }
     29 
     30 FakeOutputSurface::FakeOutputSurface(
     31     scoped_ptr<SoftwareOutputDevice> software_device, bool delegated_rendering)
     32     : OutputSurface(software_device.Pass()),
     33       client_(NULL),
     34       num_sent_frames_(0),
     35       forced_draw_to_software_device_(false),
     36       fake_weak_ptr_factory_(this) {
     37   if (delegated_rendering) {
     38     capabilities_.delegated_rendering = true;
     39     capabilities_.max_frames_pending = 1;
     40   }
     41 }
     42 
     43 FakeOutputSurface::FakeOutputSurface(
     44     scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
     45     scoped_ptr<SoftwareOutputDevice> software_device,
     46     bool delegated_rendering)
     47     : OutputSurface(context3d.Pass(), software_device.Pass()),
     48       client_(NULL),
     49       num_sent_frames_(0),
     50       forced_draw_to_software_device_(false),
     51       fake_weak_ptr_factory_(this) {
     52   if (delegated_rendering) {
     53     capabilities_.delegated_rendering = true;
     54     capabilities_.max_frames_pending = 1;
     55   }
     56 }
     57 
     58 FakeOutputSurface::~FakeOutputSurface() {}
     59 
     60 void FakeOutputSurface::SwapBuffers(CompositorFrame* frame) {
     61   if (frame->software_frame_data || frame->delegated_frame_data ||
     62       !context3d()) {
     63     frame->AssignTo(&last_sent_frame_);
     64 
     65     if (last_sent_frame_.delegated_frame_data) {
     66       resources_held_by_parent_.insert(
     67           resources_held_by_parent_.end(),
     68           last_sent_frame_.delegated_frame_data->resource_list.begin(),
     69           last_sent_frame_.delegated_frame_data->resource_list.end());
     70     }
     71 
     72     ++num_sent_frames_;
     73     PostSwapBuffersComplete();
     74     DidSwapBuffers();
     75   } else {
     76     OutputSurface::SwapBuffers(frame);
     77     frame->AssignTo(&last_sent_frame_);
     78     ++num_sent_frames_;
     79   }
     80 }
     81 
     82 void FakeOutputSurface::SetNeedsBeginFrame(bool enable) {
     83   needs_begin_frame_ = enable;
     84   OutputSurface::SetNeedsBeginFrame(enable);
     85 
     86   // If there is not BeginFrame emulation from the FrameRateController,
     87   // then we just post a BeginFrame to emulate it as part of the test.
     88   if (enable && !frame_rate_controller_) {
     89     base::MessageLoop::current()->PostDelayedTask(
     90         FROM_HERE, base::Bind(&FakeOutputSurface::OnBeginFrame,
     91                               fake_weak_ptr_factory_.GetWeakPtr()),
     92         base::TimeDelta::FromMilliseconds(16));
     93   }
     94 }
     95 
     96 void FakeOutputSurface::OnBeginFrame() {
     97   OutputSurface::BeginFrame(BeginFrameArgs::CreateForTesting());
     98 }
     99 
    100 
    101 bool FakeOutputSurface::ForcedDrawToSoftwareDevice() const {
    102   return forced_draw_to_software_device_;
    103 }
    104 
    105 bool FakeOutputSurface::BindToClient(OutputSurfaceClient* client) {
    106   if (OutputSurface::BindToClient(client)) {
    107     client_ = client;
    108     return true;
    109   } else {
    110     return false;
    111   }
    112 }
    113 
    114 bool FakeOutputSurface::SetAndInitializeContext3D(
    115     scoped_ptr<WebKit::WebGraphicsContext3D> context3d) {
    116   context3d_.reset();
    117   return InitializeAndSetContext3D(context3d.Pass(),
    118                                    scoped_refptr<ContextProvider>());
    119 }
    120 
    121 void FakeOutputSurface::SetTreeActivationCallback(
    122     const base::Closure& callback) {
    123   DCHECK(client_);
    124   client_->SetTreeActivationCallback(callback);
    125 }
    126 
    127 void FakeOutputSurface::ReturnResource(unsigned id, CompositorFrameAck* ack) {
    128   TransferableResourceArray::iterator it;
    129   for (it = resources_held_by_parent_.begin();
    130        it != resources_held_by_parent_.end();
    131        ++it) {
    132     if (it->id == id)
    133       break;
    134   }
    135   DCHECK(it != resources_held_by_parent_.end());
    136   ack->resources.push_back(*it);
    137   resources_held_by_parent_.erase(it);
    138 }
    139 
    140 }  // namespace cc
    141