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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 CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ | |
6 #define CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ | |
7 | |
8 #include <map> | |
9 #include <vector> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/containers/hash_tables.h" | |
13 #include "base/memory/ref_counted.h" | |
14 #include "base/memory/scoped_ptr.h" | |
15 #include "base/memory/scoped_vector.h" | |
16 #include "content/common/content_export.h" | |
17 #include "gpu/command_buffer/common/mailbox.h" | |
18 #include "media/video/video_decode_accelerator.h" | |
19 #include "ppapi/c/pp_codecs.h" | |
20 #include "ppapi/host/host_message_context.h" | |
21 #include "ppapi/host/resource_host.h" | |
22 #include "ppapi/proxy/resource_message_params.h" | |
23 | |
24 namespace base { | |
25 class SharedMemory; | |
26 } | |
27 | |
28 namespace content { | |
29 | |
30 class PPB_Graphics3D_Impl; | |
31 class RendererPpapiHost; | |
32 class RenderViewImpl; | |
33 | |
34 class CONTENT_EXPORT PepperVideoDecoderHost | |
35 : public ppapi::host::ResourceHost, | |
36 public media::VideoDecodeAccelerator::Client { | |
37 public: | |
38 PepperVideoDecoderHost(RendererPpapiHost* host, | |
39 PP_Instance instance, | |
40 PP_Resource resource); | |
41 virtual ~PepperVideoDecoderHost(); | |
42 | |
43 private: | |
44 struct PendingDecode { | |
45 PendingDecode(uint32_t shm_id, | |
46 const ppapi::host::ReplyMessageContext& reply_context); | |
47 ~PendingDecode(); | |
48 | |
49 const uint32_t shm_id; | |
50 const ppapi::host::ReplyMessageContext reply_context; | |
51 }; | |
52 | |
53 // ResourceHost implementation. | |
54 virtual int32_t OnResourceMessageReceived( | |
55 const IPC::Message& msg, | |
56 ppapi::host::HostMessageContext* context) OVERRIDE; | |
57 | |
58 // media::VideoDecodeAccelerator::Client implementation. | |
59 virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers, | |
60 const gfx::Size& dimensions, | |
61 uint32 texture_target) OVERRIDE; | |
62 virtual void DismissPictureBuffer(int32 picture_buffer_id) OVERRIDE; | |
63 virtual void PictureReady(const media::Picture& picture) OVERRIDE; | |
64 virtual void NotifyError(media::VideoDecodeAccelerator::Error error) OVERRIDE; | |
65 virtual void NotifyFlushDone() OVERRIDE; | |
66 virtual void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) OVERRIDE; | |
67 virtual void NotifyResetDone() OVERRIDE; | |
68 | |
69 int32_t OnHostMsgInitialize(ppapi::host::HostMessageContext* context, | |
70 const ppapi::HostResource& graphics_context, | |
71 PP_VideoProfile profile, | |
72 bool allow_software_fallback); | |
73 int32_t OnHostMsgGetShm(ppapi::host::HostMessageContext* context, | |
74 uint32_t shm_id, | |
75 uint32_t shm_size); | |
76 int32_t OnHostMsgDecode(ppapi::host::HostMessageContext* context, | |
77 uint32_t shm_id, | |
78 uint32_t size); | |
79 int32_t OnHostMsgAssignTextures(ppapi::host::HostMessageContext* context, | |
80 const PP_Size& size, | |
81 const std::vector<uint32_t>& texture_ids); | |
82 int32_t OnHostMsgRecyclePicture(ppapi::host::HostMessageContext* context, | |
83 uint32_t picture_id); | |
84 int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context); | |
85 int32_t OnHostMsgReset(ppapi::host::HostMessageContext* context); | |
86 | |
87 // Non-owning pointer. | |
88 RendererPpapiHost* renderer_ppapi_host_; | |
89 | |
90 scoped_ptr<media::VideoDecodeAccelerator> decoder_; | |
91 scoped_refptr<PPB_Graphics3D_Impl> graphics3d_; | |
92 | |
93 // A vector holding our shm buffers, in sync with a similar vector in the | |
94 // resource. We use a buffer's index in these vectors as its id on both sides | |
95 // of the proxy. Only add buffers or update them in place so as not to | |
96 // invalidate these ids. | |
97 ScopedVector<base::SharedMemory> shm_buffers_; | |
98 // A vector of values indicating if a shm buffer is in use by the decoder. | |
Ami GONE FROM CHROMIUM
2014/05/29 02:31:36
s/values/true\/false/ ?
bbudge
2014/05/29 12:07:38
Done.
| |
99 // This is parallel to |shm_buffers_|. | |
100 std::vector<uint8_t> shm_buffer_busy_; | |
101 | |
102 // Number of Decode calls made, mod 2^32, to serve as a uid for each decode. | |
Ami GONE FROM CHROMIUM
2014/05/29 02:31:36
s/32/31/
bbudge
2014/05/29 12:07:38
Done.
| |
103 // The resource counts decodes in unison. | |
104 int32_t num_decodes_; | |
105 // Maps decode uid to PendingDecode info. | |
106 typedef base::hash_map<int32_t, PendingDecode> PendingDecodeMap; | |
107 PendingDecodeMap pending_decodes_; | |
108 | |
109 ppapi::host::ReplyMessageContext flush_reply_context_; | |
110 ppapi::host::ReplyMessageContext reset_reply_context_; | |
111 | |
112 bool initialized_; | |
113 | |
114 DISALLOW_COPY_AND_ASSIGN(PepperVideoDecoderHost); | |
115 }; | |
116 | |
117 } // namespace content | |
118 | |
119 #endif // CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_ | |
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