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// Copyright 2014 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 REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_2D_H_
#define REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_2D_H_
#include <list>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_vector.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "ppapi/cpp/graphics_2d.h"
#include "ppapi/cpp/image_data.h"
#include "ppapi/cpp/point.h"
#include "ppapi/cpp/view.h"
#include "ppapi/utility/completion_callback_factory.h"
#include "remoting/client/plugin/pepper_video_renderer.h"
#include "remoting/protocol/frame_consumer.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_region.h"
namespace base {
class ScopedClosureRunner;
} // namespace base
namespace webrtc {
class DesktopFrame;
class SharedDesktopFrame;
} // namespace webrtc
namespace remoting {
class SoftwareVideoRenderer;
// Video renderer that wraps SoftwareVideoRenderer and displays it using Pepper
// 2D graphics API.
class PepperVideoRenderer2D : public PepperVideoRenderer,
public protocol::FrameConsumer {
public:
PepperVideoRenderer2D();
~PepperVideoRenderer2D() override;
// PepperVideoRenderer interface.
bool Initialize(pp::Instance* instance,
const ClientContext& context,
EventHandler* event_handler,
protocol::PerformanceTracker* perf_tracker) override;
void OnViewChanged(const pp::View& view) override;
void EnableDebugDirtyRegion(bool enable) override;
// VideoRenderer interface.
void OnSessionConfig(const protocol::SessionConfig& config) override;
protocol::VideoStub* GetVideoStub() override;
protocol::FrameConsumer* GetFrameConsumer() override;
private:
// protocol::FrameConsumer implementation.
scoped_ptr<webrtc::DesktopFrame> AllocateFrame(
const webrtc::DesktopSize& size) override;
void DrawFrame(scoped_ptr<webrtc::DesktopFrame> frame,
const base::Closure& done) override;
PixelFormat GetPixelFormat() override;
void Flush();
void OnFlushDone(int result);
// Parameters passed to Initialize().
pp::Instance* instance_ = nullptr;
EventHandler* event_handler_ = nullptr;
pp::Graphics2D graphics2d_;
scoped_ptr<SoftwareVideoRenderer> software_video_renderer_;
// View size in output pixels.
webrtc::DesktopSize view_size_;
// Size of the most recent source frame in pixels.
webrtc::DesktopSize source_size_;
// Resolution of the most recent source frame dots-per-inch.
webrtc::DesktopVector source_dpi_;
// Shape of the most recent source frame.
scoped_ptr<webrtc::DesktopRegion> source_shape_;
// Done callbacks for the frames that have been painted but not flushed.
ScopedVector<base::ScopedClosureRunner> pending_frames_done_callbacks_;
// Done callbacks for the frames that are currently being flushed.
ScopedVector<base::ScopedClosureRunner> flushing_frames_done_callbacks_;
// True if there paint operations that need to be flushed.
bool need_flush_ = false;
// True if there is already a Flush() pending on the Graphics2D context.
bool flush_pending_ = false;
// True after the first call to DrawFrame().
bool frame_received_ = false;
// True if dirty regions are to be sent to |event_handler_| for debugging.
bool debug_dirty_region_ = false;
base::ThreadChecker thread_checker_;
pp::CompletionCallbackFactory<PepperVideoRenderer2D> callback_factory_;
base::WeakPtrFactory<PepperVideoRenderer2D> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PepperVideoRenderer2D);
};
} // namespace remoting
#endif // REMOTING_CLIENT_PLUGIN_PEPPER_VIDEO_RENDERER_2D_H_
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