1/*
2 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_VIDEO_ENGINE_VIE_RENDER_MANAGER_H_
12#define WEBRTC_VIDEO_ENGINE_VIE_RENDER_MANAGER_H_
13
14#include <list>
15#include <map>
16
17#include "webrtc/system_wrappers/interface/scoped_ptr.h"
18#include "webrtc/typedefs.h"
19#include "webrtc/video_engine/vie_manager_base.h"
20
21namespace webrtc {
22
23class CriticalSectionWrapper;
24class RWLockWrapper;
25class VideoRender;
26class VideoRenderCallback;
27class ViERenderer;
28
29class ViERenderManager : private ViEManagerBase {
30  friend class ViERenderManagerScoped;
31 public:
32  explicit ViERenderManager(int32_t engine_id);
33  ~ViERenderManager();
34
35  int32_t RegisterVideoRenderModule(VideoRender* render_module);
36  int32_t DeRegisterVideoRenderModule(VideoRender* render_module);
37
38  ViERenderer* AddRenderStream(const int32_t render_id,
39                               void* window,
40                               const uint32_t z_order,
41                               const float left,
42                               const float top,
43                               const float right,
44                               const float bottom);
45
46  int32_t RemoveRenderStream(int32_t render_id);
47
48 private:
49  typedef std::list<VideoRender*> RenderList;
50  // Returns a pointer to the render module if it exists in the render list.
51  // Assumed protected.
52  VideoRender* FindRenderModule(void* window);
53
54  // Methods used by ViERenderScoped.
55  ViERenderer* ViERenderPtr(int32_t render_id) const;
56
57  scoped_ptr<CriticalSectionWrapper> list_cs_;
58  int32_t engine_id_;
59  // Protected by ViEManagerBase.
60  typedef std::map<int32_t, ViERenderer*> RendererMap;
61  RendererMap stream_to_vie_renderer_;
62  RenderList render_list_;
63  bool use_external_render_module_;
64};
65
66class ViERenderManagerScoped: private ViEManagerScopedBase {
67 public:
68  explicit ViERenderManagerScoped(const ViERenderManager& vie_render_manager);
69
70  // Returns a pointer to the ViERender object.
71  ViERenderer* Renderer(int32_t render_id) const;
72};
73
74}  // namespace webrtc
75
76#endif  // WEBRTC_VIDEO_ENGINE_VIE_RENDER_MANAGER_H_
77