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1 // Copyright (c) 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 #ifndef PPAPI_PROXY_VIDEO_DECODER_RESOURCE_H_ | |
6 #define PPAPI_PROXY_VIDEO_DECODER_RESOURCE_H_ | |
7 | |
8 #include <map> | |
9 #include <queue> | |
10 | |
11 #include "base/memory/ref_counted.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/memory/scoped_vector.h" | |
14 #include "gpu/command_buffer/common/mailbox.h" | |
15 #include "ppapi/proxy/connection.h" | |
16 #include "ppapi/proxy/plugin_resource.h" | |
17 #include "ppapi/proxy/ppapi_proxy_export.h" | |
18 #include "ppapi/shared_impl/resource.h" | |
19 #include "ppapi/thunk/ppb_video_decoder_api.h" | |
20 | |
21 namespace gpu { | |
22 namespace gles2 { | |
23 class GLES2Implementation; | |
24 } | |
25 } | |
26 | |
27 namespace ppapi { | |
28 | |
29 class PPB_Graphics3D_Shared; | |
30 class TrackedCallback; | |
31 | |
32 namespace proxy { | |
33 | |
34 class PPAPI_PROXY_EXPORT VideoDecoderResource | |
35 : public PluginResource, | |
36 public thunk::PPB_VideoDecoder_API { | |
37 public: | |
38 VideoDecoderResource(Connection connection, PP_Instance instance); | |
39 virtual ~VideoDecoderResource(); | |
40 | |
41 // Resource overrides. | |
42 virtual thunk::PPB_VideoDecoder_API* AsPPB_VideoDecoder_API() OVERRIDE; | |
43 | |
44 // PPB_VideoDecoder_API implementation. | |
45 virtual int32_t Initialize(PP_Resource graphics_context, | |
46 PP_VideoProfile profile, | |
47 PP_Bool allow_software_fallback, | |
48 scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
49 virtual int32_t Decode(uint32_t decode_id, | |
50 uint32_t size, | |
51 const void* buffer, | |
52 scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
53 virtual int32_t GetPicture(PP_VideoPicture* picture, | |
54 scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
55 virtual void RecyclePicture(const PP_VideoPicture* picture) OVERRIDE; | |
56 virtual int32_t Flush(scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
57 virtual int32_t Reset(scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
58 | |
59 // PluginResource implementation. | |
60 virtual void OnReplyReceived(const ResourceMessageReplyParams& params, | |
61 const IPC::Message& msg) OVERRIDE; | |
62 | |
63 private: | |
64 // Struct to hold a shared memory buffer. | |
65 struct ShmBuffer { | |
66 ShmBuffer(base::SharedMemory* shm, uint32_t size, uint32_t shm_id); | |
67 ~ShmBuffer(); | |
68 | |
69 scoped_ptr<base::SharedMemory> shm_; | |
70 uint32_t size_; | |
71 void* addr_; | |
72 // Index into shm_buffers_ vector, used as an id. This should map 1:1 to | |
73 // the index on the host side of the proxy. | |
74 uint32_t shm_id_; | |
75 }; | |
76 | |
77 // Struct to hold texture info. | |
78 struct Texture { | |
79 Texture(uint32_t texture_target, const PP_Size& size); | |
80 ~Texture(); | |
81 | |
82 uint32_t texture_target_; | |
83 PP_Size size_; | |
84 }; | |
85 | |
86 // Struct to hold a picture received from the decoder. | |
87 struct Picture { | |
88 Picture(int32_t decode_id, uint32_t texture_id); | |
89 ~Picture(); | |
90 | |
91 uint32_t decode_id_; | |
92 uint32_t texture_id_; | |
93 }; | |
94 | |
95 // Unsolicited reply message handlers. | |
96 void OnPluginMsgRequestTextures(const ResourceMessageReplyParams& params, | |
97 uint32_t num_textures, | |
98 PP_Size size, | |
99 uint32_t texture_target, | |
100 const std::vector<gpu::Mailbox>& mailboxes); | |
101 void OnPluginMsgPictureReady(const ResourceMessageReplyParams& params, | |
102 int32_t shm_id, | |
103 uint32_t decode_id); | |
104 void OnPluginMsgDismissPicture(const ResourceMessageReplyParams& params, | |
105 uint32_t texture_id); | |
106 void OnPluginMsgNotifyError(const ResourceMessageReplyParams& params, | |
107 int32_t error); | |
108 | |
109 // Reply message handlers for operations that are done in the host. | |
110 void OnPluginMsgInitializeComplete(const ResourceMessageReplyParams& params); | |
111 void OnPluginMsgGetShmComplete(const ResourceMessageReplyParams& params, | |
112 uint32_t size); | |
113 void OnPluginMsgDecodeComplete(uint32_t decode_id, | |
114 const ResourceMessageReplyParams& params, | |
115 uint32_t shm_id); | |
116 void OnPluginMsgFlushComplete(const ResourceMessageReplyParams& params); | |
117 void OnPluginMsgResetComplete(const ResourceMessageReplyParams& params); | |
118 | |
119 int32_t TryDecode(uint32_t decode_id, | |
120 uint32_t size, | |
121 const void* buffer, | |
122 scoped_refptr<TrackedCallback> callback); | |
123 void SendDecodeMessage(uint32_t shm_id); | |
124 void RunDecodeCallback(int32_t result); | |
125 | |
126 void FlushCommandBuffer(); | |
127 void DeleteGLTexture(uint32_t texture_id); | |
128 void WriteNextPicture(PP_VideoPicture* picture); | |
129 | |
130 // ScopedVector to own the shared memory buffers. | |
131 ScopedVector<ShmBuffer> shm_buffers_; | |
132 | |
133 // List of available shared memory buffers. | |
134 typedef std::vector<ShmBuffer*> ShmBufferList; | |
135 ShmBufferList available_shm_buffers_; | |
136 | |
137 // Map of GL texture id to texture info. | |
138 typedef std::map<uint32_t, Texture> TextureMap; | |
piman
2014/05/08 04:26:04
nit: hash_map
bbudge
2014/05/14 16:40:41
Done.
| |
139 TextureMap textures_; | |
140 | |
141 // Map of shm ids to Decode call ids. | |
142 typedef std::map<uint32_t, uint32_t> DecodeIdMap; | |
piman
2014/05/08 04:26:04
nit: hash_map
bbudge
2014/05/14 16:40:41
Done.
| |
143 DecodeIdMap decode_ids_; | |
144 | |
145 // Queue of received pictures. | |
146 typedef std::queue<Picture> PictureQueue; | |
147 PictureQueue received_pictures_; | |
148 | |
149 // Pending callbacks. | |
150 scoped_refptr<TrackedCallback> initialize_callback_; | |
151 scoped_refptr<TrackedCallback> decode_callback_; | |
152 scoped_refptr<TrackedCallback> get_picture_callback_; | |
153 scoped_refptr<TrackedCallback> flush_callback_; | |
154 scoped_refptr<TrackedCallback> reset_callback_; | |
155 | |
156 // State for pending decode_callback_. | |
157 uint32_t decode_id_; | |
158 uint32_t decode_size_; | |
159 const void* decode_buffer_; | |
160 uint32_t pending_decode_count_; | |
161 bool get_shm_buffer_pending_; | |
162 // State for pending get_picture_callback_. | |
163 PP_VideoPicture* get_picture_; | |
164 | |
165 scoped_refptr<PPB_Graphics3D_Shared> graphics3d_; | |
166 gpu::gles2::GLES2Implementation* gles2_impl_; | |
167 | |
168 bool initialized_; | |
169 int32_t decoder_last_error_; | |
170 | |
171 DISALLOW_COPY_AND_ASSIGN(VideoDecoderResource); | |
172 }; | |
173 | |
174 } // namespace proxy | |
175 } // namespace ppapi | |
176 | |
177 #endif // PPAPI_PROXY_VIDEO_DECODER_RESOURCE_H_ | |
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