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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 CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_H_
#define CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_H_
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop_proxy.h"
#include "cc/layers/video_frame_provider.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "ui/gfx/geometry/size.h"
namespace gpu {
namespace gles2 {
class GLES2Interface;
} // namespace gles2
} // namespace gpu
namespace content {
// The proxy class for the gpu thread to notify the compositor thread
// when a new video frame is available.
class StreamTextureProxy {
public:
virtual ~StreamTextureProxy() {}
// Initialize and bind to the loop, which becomes the thread that
// a connected client will receive callbacks on. This can be called
// on any thread, but must be called with the same loop every time.
virtual void BindToLoop(int32 stream_id,
cc::VideoFrameProvider::Client* client,
scoped_refptr<base::MessageLoopProxy> loop) = 0;
// 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(); }
};
};
typedef scoped_ptr<StreamTextureProxy, StreamTextureProxy::Deleter>
ScopedStreamTextureProxy;
class StreamTextureFactoryContextObserver {
public:
virtual ~StreamTextureFactoryContextObserver() {}
virtual void ResetStreamTextureProxy() = 0;
};
// Factory class for managing stream textures.
class StreamTextureFactory : public base::RefCounted<StreamTextureFactory> {
public:
// Create the StreamTextureProxy object.
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.
virtual void EstablishPeer(int32 stream_id, int player_id) = 0;
// Creates a StreamTexture and returns its id. Sets |*texture_id| to the
// client-side id of the StreamTexture. The texture is produced into
// a mailbox so it can be shipped in a VideoFrame.
virtual unsigned CreateStreamTexture(unsigned texture_target,
unsigned* texture_id,
gpu::Mailbox* texture_mailbox) = 0;
// Set the streamTexture size for the given stream Id.
virtual void SetStreamTextureSize(int32 texture_id,
const gfx::Size& size) = 0;
virtual gpu::gles2::GLES2Interface* ContextGL() = 0;
virtual void AddObserver(StreamTextureFactoryContextObserver* obs) = 0;
virtual void RemoveObserver(StreamTextureFactoryContextObserver* obs) = 0;
protected:
friend class base::RefCounted<StreamTextureFactory>;
virtual ~StreamTextureFactory() {}
};
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_ANDROID_STREAM_TEXTURE_FACTORY_H_
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