src/mojo/examples/surfaces_app/surfaces_app.cc

   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 "base/bind.h"
   6 #include "base/macros.h"
   7 #include "base/message_loop/message_loop.h"
   8 #include "cc/surfaces/surface_id_allocator.h"
   9 #include "mojo/application/application_runner_chromium.h"
  10 #include "mojo/examples/surfaces_app/child.mojom.h"
  11 #include "mojo/examples/surfaces_app/embedder.h"
  12 #include "mojo/public/c/system/main.h"
  13 #include "mojo/public/cpp/application/application_connection.h"
  14 #include "mojo/public/cpp/application/application_delegate.h"
  15 #include "mojo/public/cpp/system/core.h"
  16 #include "mojo/services/gles2/command_buffer.mojom.h"
  17 #include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
  18 #include "mojo/services/public/cpp/surfaces/surfaces_type_converters.h"
  19 #include "mojo/services/public/interfaces/gpu/gpu.mojom.h"
  20 #include "mojo/services/public/interfaces/native_viewport/native_viewport.mojom.h"
  21 #include "mojo/services/public/interfaces/surfaces/surfaces.mojom.h"
  22 #include "mojo/services/public/interfaces/surfaces/surfaces_service.mojom.h"
  23 #include "ui/gfx/rect.h"
  24
  25 namespace mojo {
  26 namespace examples {
  27
  28 class SurfacesApp : public ApplicationDelegate,
  29                     public SurfaceClient,
  30                     public NativeViewportClient {
  31  public:
  32   SurfacesApp() {}
  33   virtual ~SurfacesApp() {}
  34
  35   // ApplicationDelegate implementation
  36   virtual bool ConfigureIncomingConnection(
  37       ApplicationConnection* connection) OVERRIDE {
  38     connection->ConnectToService("mojo:mojo_native_viewport_service",
  39                                  &viewport_);
  40     viewport_.set_client(this);
  41
  42     connection->ConnectToService("mojo:mojo_surfaces_service",
  43                                  &surfaces_service_);
  44     surfaces_service_->CreateSurfaceConnection(base::Bind(
  45         &SurfacesApp::SurfaceConnectionCreated, base::Unretained(this)));
  46
  47     size_ = gfx::Size(800, 600);
  48
  49     viewport_->Create(Size::From(size_));
  50     viewport_->Show();
  51
  52     child_size_ = gfx::Size(size_.width() / 3, size_.height() / 2);
  53     connection->ConnectToService("mojo:mojo_surfaces_child_app", &child_one_);
  54     connection->ConnectToService("mojo:mojo_surfaces_child_gl_app",
  55                                  &child_two_);
  56     child_one_->ProduceFrame(Color::From(SK_ColorBLUE),
  57                              Size::From(child_size_),
  58                              base::Bind(&SurfacesApp::ChildOneProducedFrame,
  59                                         base::Unretained(this)));
  60     child_two_->ProduceFrame(Color::From(SK_ColorGREEN),
  61                              Size::From(child_size_),
  62                              base::Bind(&SurfacesApp::ChildTwoProducedFrame,
  63                                         base::Unretained(this)));
  64     return true;
  65   }
  66
  67   void ChildOneProducedFrame(SurfaceIdPtr id) {
  68     child_one_id_ = id.To<cc::SurfaceId>();
  69   }
  70
  71   void ChildTwoProducedFrame(SurfaceIdPtr id) {
  72     child_two_id_ = id.To<cc::SurfaceId>();
  73   }
  74
  75   void Draw(int offset) {
  76     int bounced_offset = offset;
  77     if (offset > 200)
  78       bounced_offset = 400 - offset;
  79     embedder_->ProduceFrame(
  80         child_one_id_, child_two_id_, child_size_, size_, bounced_offset);
  81     base::MessageLoop::current()->PostDelayedTask(
  82         FROM_HERE,
  83         base::Bind(
  84             &SurfacesApp::Draw, base::Unretained(this), (offset + 2) % 400),
  85         base::TimeDelta::FromMilliseconds(50));
  86   }
  87
  88   void SurfaceConnectionCreated(SurfacePtr surface, uint32_t id_namespace) {
  89     surface_ = surface.Pass();
  90     surface_.set_client(this);
  91     embedder_.reset(new Embedder(surface_.get()));
  92     allocator_.reset(new cc::SurfaceIdAllocator(id_namespace));
  93
  94     onscreen_id_ = allocator_->GenerateId();
  95     embedder_->SetSurfaceId(onscreen_id_);
  96     surface_->CreateSurface(SurfaceId::From(onscreen_id_), Size::From(size_));
  97     viewport_->SubmittedFrame(SurfaceId::From(onscreen_id_));
  98     Draw(10);
  99   }
 100
 101   // SurfaceClient implementation.
 102   virtual void ReturnResources(Array<ReturnedResourcePtr> resources) OVERRIDE {
 103     DCHECK(!resources.size());
 104   }
 105   // NativeViewportClient implementation.
 106   virtual void OnCreated(uint64_t native_viewport_id) OVERRIDE {}
 107   virtual void OnBoundsChanged(mojo::SizePtr bounds) OVERRIDE {}
 108   virtual void OnDestroyed() OVERRIDE {}
 109   virtual void OnEvent(mojo::EventPtr event,
 110                        const mojo::Callback<void()>& callback) OVERRIDE {
 111     callback.Run();
 112   }
 113
 114  private:
 115   SurfacesServicePtr surfaces_service_;
 116   SurfacePtr surface_;
 117   cc::SurfaceId onscreen_id_;
 118   scoped_ptr<cc::SurfaceIdAllocator> allocator_;
 119   scoped_ptr<Embedder> embedder_;
 120   ChildPtr child_one_;
 121   cc::SurfaceId child_one_id_;
 122   ChildPtr child_two_;
 123   cc::SurfaceId child_two_id_;
 124   gfx::Size size_;
 125   gfx::Size child_size_;
 126
 127   NativeViewportPtr viewport_;
 128
 129   DISALLOW_COPY_AND_ASSIGN(SurfacesApp);
 130 };
 131
 132 }  // namespace examples
 133 }  // namespace mojo
 134
 135 MojoResult MojoMain(MojoHandle shell_handle) {
 136   mojo::ApplicationRunnerChromium runner(new mojo::examples::SurfacesApp);
 137   return runner.Run(shell_handle);
 138 }