Fullscreen video in Android WebView

Make StreamTextureFactory and StreamTextureProxy abstract
base classes, and create a stub StreamTextureFactory for
Android Webview using synchronous compositor.

This provides enough plumbing to make full screen video
work in Android WebView. In-page video still requires
the in-process context to support streaming texture
manager.

BUG=239760

Review URL: https://chromiumcodereview.appspot.com/22766004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@216864 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 179 insertions, 59 deletions

diff --git a/content/renderer/media/android/stream_texture_factory_android.h b/content/renderer/media/android/stream_texture_factory_android.h
index f496348..d41d857 100644
--- a/content/renderer/media/android/stream_texture_factory_android.h
+++ b/content/renderer/media/android/stream_texture_factory_android.h
@@ -7,51 +7,33 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/layers/video_frame_provider.h"
-#include "content/renderer/gpu/stream_texture_host_android.h"
 #include "gpu/command_buffer/common/mailbox.h"
-
-namespace WebKit {
-class WebGraphicsContext3D;
-}
+#include "ui/gfx/size.h"
 
 namespace content {
 
 // The proxy class for the gpu thread to notify the compositor thread
 // when a new video frame is available.
-class StreamTextureProxy : public StreamTextureHost::Listener {
+class StreamTextureProxy {
  public:
-  explicit StreamTextureProxy(StreamTextureHost* host);
-  virtual ~StreamTextureProxy();
+  virtual ~StreamTextureProxy() {}
 
   // Initialize and bind to the current thread, which becomes the thread that
   // a connected client will receive callbacks on.
-  void BindToCurrentThread(int32 stream_id);
+  virtual void BindToCurrentThread(int32 stream_id) = 0;
 
-  bool IsBoundToThread() { return loop_.get() != NULL; }
+  virtual bool IsBoundToThread() = 0;
 
   // Setting the target for callback when a frame is available. This function
   // could be called on both the main thread and the compositor thread.
-  void SetClient(cc::VideoFrameProvider::Client* client);
+  virtual void SetClient(cc::VideoFrameProvider::Client* client) = 0;
 
-  // StreamTextureHost::Listener implementation:
-  virtual void OnFrameAvailable() OVERRIDE;
-  virtual void OnMatrixChanged(const float matrix[16]) OVERRIDE;
+  // Causes this instance to be deleted on the thread it is bound to.
+  virtual void Release() = 0;
 
   struct Deleter {
     inline void operator()(StreamTextureProxy* ptr) const { ptr->Release(); }
   };
-
- private:
-  // Causes this instance to be deleted on the thread it is bound to.
-  void Release();
-
-  scoped_ptr<StreamTextureHost> host_;
-  scoped_refptr<base::MessageLoopProxy> loop_;
-
-  base::Lock client_lock_;
-  cc::VideoFrameProvider::Client* client_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureProxy);
 };
 
 typedef scoped_ptr<StreamTextureProxy, StreamTextureProxy::Deleter>
@@ -60,43 +42,34 @@ typedef scoped_ptr<StreamTextureProxy, StreamTextureProxy::Deleter>
 // Factory class for managing stream textures.
 class StreamTextureFactory {
  public:
-  StreamTextureFactory(WebKit::WebGraphicsContext3D* context,
-                       GpuChannelHost* channel,
-                       int view_id);
-  ~StreamTextureFactory();
+  virtual ~StreamTextureFactory() {}
 
   // Create the StreamTextureProxy object.
-  StreamTextureProxy* CreateProxy();
+  virtual StreamTextureProxy* CreateProxy() = 0;
 
   // Send an IPC message to the browser process to request a java surface
   // object for the given stream_id. After the the surface is created,
   // it will be passed back to the WebMediaPlayerAndroid object identified by
   // the player_id.
-  void EstablishPeer(int32 stream_id, int player_id);
+  virtual void EstablishPeer(int32 stream_id, int player_id) = 0;
 
   // Create the streamTexture and return the stream Id and create a client-side
   // texture id to refer to the streamTexture. The texture id is produced into
   // a mailbox so it can be used to ship in a VideoFrame, with a sync point for
   // when the mailbox can be accessed.
-  unsigned CreateStreamTexture(
+  virtual unsigned CreateStreamTexture(
       unsigned texture_target,
       unsigned* texture_id,
       gpu::Mailbox* texture_mailbox,
-      unsigned* texture_mailbox_sync_point);
+      unsigned* texture_mailbox_sync_point) = 0;
 
   // Destroy the streamTexture for the given texture id, as well as the
   // client side texture.
-  void DestroyStreamTexture(unsigned texture_id);
+  virtual void DestroyStreamTexture(unsigned texture_id) = 0;
 
   // Set the streamTexture size for the given stream Id.
-  void SetStreamTextureSize(int32 texture_id, const gfx::Size& size);
-
- private:
-  WebKit::WebGraphicsContext3D* context_;
-  scoped_refptr<GpuChannelHost> channel_;
-  int view_id_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureFactory);
+  virtual void SetStreamTextureSize(int32 texture_id,
+                                    const gfx::Size& size) = 0;
 };
 
 }  // namespace content
diff --git a/content/renderer/media/android/stream_texture_factory_android.cc b/content/renderer/media/android/stream_texture_factory_android_impl.cc
index a2e2c5f..721b680 100644
--- a/content/renderer/media/android/stream_texture_factory_android.cc
+++ b/content/renderer/media/android/stream_texture_factory_android_impl.cc
@@ -2,23 +2,52 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/renderer/media/android/stream_texture_factory_android.h"
+#include "content/renderer/media/android/stream_texture_factory_android_impl.h"
 
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/renderer/gpu/stream_texture_host_android.h"
 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
 #include "ui/gfx/size.h"
 
 namespace content {
 
-StreamTextureProxy::StreamTextureProxy(StreamTextureHost* host)
+namespace {
+
+class StreamTextureProxyImpl : public StreamTextureProxy,
+                               public StreamTextureHost::Listener {
+ public:
+  explicit StreamTextureProxyImpl(StreamTextureHost* host);
+  virtual ~StreamTextureProxyImpl();
+
+  // StreamTextureProxy implementation:
+  virtual void BindToCurrentThread(int32 stream_id) OVERRIDE;
+  virtual bool IsBoundToThread() OVERRIDE { return loop_.get() != NULL; }
+  virtual void SetClient(cc::VideoFrameProvider::Client* client) OVERRIDE;
+  virtual void Release() OVERRIDE;
+
+  // StreamTextureHost::Listener implementation:
+  virtual void OnFrameAvailable() OVERRIDE;
+  virtual void OnMatrixChanged(const float matrix[16]) OVERRIDE;
+
+ private:
+  scoped_ptr<StreamTextureHost> host_;
+  scoped_refptr<base::MessageLoopProxy> loop_;
+
+  base::Lock client_lock_;
+  cc::VideoFrameProvider::Client* client_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureProxyImpl);
+};
+
+StreamTextureProxyImpl::StreamTextureProxyImpl(StreamTextureHost* host)
     : host_(host), client_(NULL) {
   host->SetListener(this);
 }
 
-StreamTextureProxy::~StreamTextureProxy() {}
+StreamTextureProxyImpl::~StreamTextureProxyImpl() {}
 
-void StreamTextureProxy::Release() {
+void StreamTextureProxyImpl::Release() {
   SetClient(NULL);
   if (loop_.get() && loop_.get() != base::MessageLoopProxy::current())
     loop_->DeleteSoon(FROM_HERE, this);
@@ -26,29 +55,31 @@ void StreamTextureProxy::Release() {
     delete this;
 }
 
-void StreamTextureProxy::SetClient(cc::VideoFrameProvider::Client* client) {
+void StreamTextureProxyImpl::SetClient(cc::VideoFrameProvider::Client* client) {
   base::AutoLock lock(client_lock_);
   client_ = client;
 }
 
-void StreamTextureProxy::BindToCurrentThread(int stream_id) {
+void StreamTextureProxyImpl::BindToCurrentThread(int stream_id) {
   loop_ = base::MessageLoopProxy::current();
   host_->Initialize(stream_id);
 }
 
-void StreamTextureProxy::OnFrameAvailable() {
+void StreamTextureProxyImpl::OnFrameAvailable() {
   base::AutoLock lock(client_lock_);
   if (client_)
     client_->DidReceiveFrame();
 }
 
-void StreamTextureProxy::OnMatrixChanged(const float matrix[16]) {
+void StreamTextureProxyImpl::OnMatrixChanged(const float matrix[16]) {
   base::AutoLock lock(client_lock_);
   if (client_)
     client_->DidUpdateMatrix(matrix);
 }
 
-StreamTextureFactory::StreamTextureFactory(
+}  // namespace
+
+StreamTextureFactoryImpl::StreamTextureFactoryImpl(
     WebKit::WebGraphicsContext3D* context,
     GpuChannelHost* channel,
     int view_id)
@@ -57,21 +88,21 @@ StreamTextureFactory::StreamTextureFactory(
   DCHECK(channel);
 }
 
-StreamTextureFactory::~StreamTextureFactory() {}
+StreamTextureFactoryImpl::~StreamTextureFactoryImpl() {}
 
-StreamTextureProxy* StreamTextureFactory::CreateProxy() {
+StreamTextureProxy* StreamTextureFactoryImpl::CreateProxy() {
   DCHECK(channel_.get());
   StreamTextureHost* host = new StreamTextureHost(channel_.get());
-  return new StreamTextureProxy(host);
+  return new StreamTextureProxyImpl(host);
 }
 
-void StreamTextureFactory::EstablishPeer(int32 stream_id, int player_id) {
+void StreamTextureFactoryImpl::EstablishPeer(int32 stream_id, int player_id) {
   DCHECK(channel_.get());
   channel_->Send(
       new GpuChannelMsg_EstablishStreamTexture(stream_id, view_id_, player_id));
 }
 
-unsigned StreamTextureFactory::CreateStreamTexture(
+unsigned StreamTextureFactoryImpl::CreateStreamTexture(
     unsigned texture_target,
     unsigned* texture_id,
     gpu::Mailbox* texture_mailbox,
@@ -91,7 +122,7 @@ unsigned StreamTextureFactory::CreateStreamTexture(
   return stream_id;
 }
 
-void StreamTextureFactory::DestroyStreamTexture(unsigned texture_id) {
+void StreamTextureFactoryImpl::DestroyStreamTexture(unsigned texture_id) {
   if (context_->makeContextCurrent()) {
     // TODO(sievers): Make the destroyStreamTexture implicit when the last
     // texture referencing it is lost.
@@ -101,7 +132,7 @@ void StreamTextureFactory::DestroyStreamTexture(unsigned texture_id) {
   }
 }
 
-void StreamTextureFactory::SetStreamTextureSize(
+void StreamTextureFactoryImpl::SetStreamTextureSize(
     int32 stream_id, const gfx::Size& size) {
   channel_->Send(new GpuChannelMsg_SetStreamTextureSize(stream_id, size));
 }
diff --git a/content/renderer/media/android/stream_texture_factory_android_impl.h b/content/renderer/media/android/stream_texture_factory_android_impl.h
new file mode 100644
index 0000000..20aacdd
--- /dev/null
+++ b/content/renderer/media/android/stream_texture_factory_android_impl.h
@@ -0,0 +1,47 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_IMPL_H_
+#define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_IMPL_H_
+
+#include "content/renderer/media/android/stream_texture_factory_android.h"
+
+namespace WebKit {
+class WebGraphicsContext3D;
+}
+
+namespace content {
+
+class GpuChannelHost;
+
+class StreamTextureFactoryImpl : public StreamTextureFactory {
+ public:
+  StreamTextureFactoryImpl(WebKit::WebGraphicsContext3D* context,
+                           GpuChannelHost* channel,
+                           int view_id);
+  virtual ~StreamTextureFactoryImpl();
+
+  // StreamTextureFactory implementation.
+  virtual StreamTextureProxy* CreateProxy() OVERRIDE;
+  virtual void EstablishPeer(int32 stream_id, int player_id) OVERRIDE;
+  virtual unsigned CreateStreamTexture(
+      unsigned texture_target,
+      unsigned* texture_id,
+      gpu::Mailbox* texture_mailbox,
+      unsigned* texture_mailbox_sync_point) OVERRIDE;
+  virtual void DestroyStreamTexture(unsigned texture_id) OVERRIDE;
+  virtual void SetStreamTextureSize(int32 texture_id,
+                                    const gfx::Size& size) OVERRIDE;
+
+ private:
+  WebKit::WebGraphicsContext3D* context_;
+  scoped_refptr<GpuChannelHost> channel_;
+  int view_id_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureFactoryImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_IMPL_H_
diff --git a/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.cc b/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.cc
new file mode 100644
index 0000000..88878d5
--- /dev/null
+++ b/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.cc
@@ -0,0 +1,34 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/renderer/media/android/stream_texture_factory_android_synchronous_impl.h"
+
+namespace content {
+
+StreamTextureFactorySynchronousImpl::StreamTextureFactorySynchronousImpl() {}
+StreamTextureFactorySynchronousImpl::~StreamTextureFactorySynchronousImpl() {}
+
+StreamTextureProxy* StreamTextureFactorySynchronousImpl::CreateProxy() {
+  return NULL;
+}
+
+void StreamTextureFactorySynchronousImpl::EstablishPeer(int32 stream_id,
+                                                        int player_id) {}
+
+unsigned StreamTextureFactorySynchronousImpl::CreateStreamTexture(
+    unsigned texture_target,
+    unsigned* texture_id,
+    gpu::Mailbox* texture_mailbox,
+    unsigned* texture_mailbox_sync_point) {
+  return 0;
+}
+
+void StreamTextureFactorySynchronousImpl::DestroyStreamTexture(
+    unsigned texture_id) {}
+
+void StreamTextureFactorySynchronousImpl::SetStreamTextureSize(
+    int32 texture_id,
+    const gfx::Size& size) {}
+
+}  // namespace content
diff --git a/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.h b/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.h
new file mode 100644
index 0000000..52fc65a
--- /dev/null
+++ b/content/renderer/media/android/stream_texture_factory_android_synchronous_impl.h
@@ -0,0 +1,35 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_SYNCHRONOUS_IMPL_H_
+#define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_SYNCHRONOUS_IMPL_H_
+
+#include "content/renderer/media/android/stream_texture_factory_android.h"
+
+namespace content {
+
+// Factory for when using synchronous compositor in Android WebView.
+class StreamTextureFactorySynchronousImpl : public StreamTextureFactory {
+ public:
+  StreamTextureFactorySynchronousImpl();
+  virtual ~StreamTextureFactorySynchronousImpl();
+
+  virtual StreamTextureProxy* CreateProxy() OVERRIDE;
+  virtual void EstablishPeer(int32 stream_id, int player_id) OVERRIDE;
+  virtual unsigned CreateStreamTexture(
+      unsigned texture_target,
+      unsigned* texture_id,
+      gpu::Mailbox* texture_mailbox,
+      unsigned* texture_mailbox_sync_point) OVERRIDE;
+  virtual void DestroyStreamTexture(unsigned texture_id) OVERRIDE;
+  virtual void SetStreamTextureSize(int32 texture_id,
+                                    const gfx::Size& size) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(StreamTextureFactorySynchronousImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_ANDROID_SYNCHRONOUS_IMPL_H_