1 // Copyright (c) 2012 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 #include "ppapi/proxy/ppp_video_decoder_proxy.h"
6
7 #include "ppapi/proxy/host_dispatcher.h"
8 #include "ppapi/proxy/plugin_globals.h"
9 #include "ppapi/proxy/plugin_resource_tracker.h"
10 #include "ppapi/proxy/ppapi_messages.h"
11 #include "ppapi/proxy/ppb_video_decoder_proxy.h"
12 #include "ppapi/thunk/enter.h"
13 #include "ppapi/thunk/ppb_video_decoder_dev_api.h"
14 #include "ppapi/thunk/thunk.h"
15
16 namespace ppapi {
17 namespace proxy {
18
19 namespace {
20
ProvidePictureBuffers(PP_Instance instance,PP_Resource decoder,uint32_t req_num_of_bufs,const PP_Size * dimensions,uint32_t texture_target)21 void ProvidePictureBuffers(PP_Instance instance, PP_Resource decoder,
22 uint32_t req_num_of_bufs,
23 const PP_Size* dimensions,
24 uint32_t texture_target) {
25 HostResource decoder_resource;
26 decoder_resource.SetHostResource(instance, decoder);
27
28 HostDispatcher::GetForInstance(instance)->Send(
29 new PpapiMsg_PPPVideoDecoder_ProvidePictureBuffers(
30 API_ID_PPP_VIDEO_DECODER_DEV,
31 decoder_resource, req_num_of_bufs, *dimensions, texture_target));
32 }
33
DismissPictureBuffer(PP_Instance instance,PP_Resource decoder,int32_t picture_buffer_id)34 void DismissPictureBuffer(PP_Instance instance, PP_Resource decoder,
35 int32_t picture_buffer_id) {
36 HostResource decoder_resource;
37 decoder_resource.SetHostResource(instance, decoder);
38
39 HostDispatcher::GetForInstance(instance)->Send(
40 new PpapiMsg_PPPVideoDecoder_DismissPictureBuffer(
41 API_ID_PPP_VIDEO_DECODER_DEV,
42 decoder_resource, picture_buffer_id));
43 }
44
PictureReady(PP_Instance instance,PP_Resource decoder,const PP_Picture_Dev * picture)45 void PictureReady(PP_Instance instance, PP_Resource decoder,
46 const PP_Picture_Dev* picture) {
47 HostResource decoder_resource;
48 decoder_resource.SetHostResource(instance, decoder);
49
50 HostDispatcher::GetForInstance(instance)->Send(
51 new PpapiMsg_PPPVideoDecoder_PictureReady(
52 API_ID_PPP_VIDEO_DECODER_DEV, decoder_resource, *picture));
53 }
54
NotifyError(PP_Instance instance,PP_Resource decoder,PP_VideoDecodeError_Dev error)55 void NotifyError(PP_Instance instance, PP_Resource decoder,
56 PP_VideoDecodeError_Dev error) {
57 HostResource decoder_resource;
58 decoder_resource.SetHostResource(instance, decoder);
59
60 // It's possible that the error we're being notified about is happening
61 // because the instance is shutting down. In this case, our instance may
62 // already have been removed from the HostDispatcher map.
63 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance);
64 if (dispatcher) {
65 dispatcher->Send(
66 new PpapiMsg_PPPVideoDecoder_NotifyError(
67 API_ID_PPP_VIDEO_DECODER_DEV, decoder_resource, error));
68 }
69 }
70
71 static const PPP_VideoDecoder_Dev video_decoder_interface = {
72 &ProvidePictureBuffers,
73 &DismissPictureBuffer,
74 &PictureReady,
75 &NotifyError
76 };
77
78 } // namespace
79
PPP_VideoDecoder_Proxy(Dispatcher * dispatcher)80 PPP_VideoDecoder_Proxy::PPP_VideoDecoder_Proxy(Dispatcher* dispatcher)
81 : InterfaceProxy(dispatcher),
82 ppp_video_decoder_impl_(NULL) {
83 if (dispatcher->IsPlugin()) {
84 ppp_video_decoder_impl_ = static_cast<const PPP_VideoDecoder_Dev*>(
85 dispatcher->local_get_interface()(PPP_VIDEODECODER_DEV_INTERFACE));
86 }
87 }
88
~PPP_VideoDecoder_Proxy()89 PPP_VideoDecoder_Proxy::~PPP_VideoDecoder_Proxy() {
90 }
91
92 // static
GetProxyInterface()93 const PPP_VideoDecoder_Dev* PPP_VideoDecoder_Proxy::GetProxyInterface() {
94 return &video_decoder_interface;
95 }
96
OnMessageReceived(const IPC::Message & msg)97 bool PPP_VideoDecoder_Proxy::OnMessageReceived(const IPC::Message& msg) {
98 if (!dispatcher()->IsPlugin())
99 return false;
100
101 bool handled = true;
102 IPC_BEGIN_MESSAGE_MAP(PPP_VideoDecoder_Proxy, msg)
103 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoDecoder_ProvidePictureBuffers,
104 OnMsgProvidePictureBuffers)
105 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoDecoder_DismissPictureBuffer,
106 OnMsgDismissPictureBuffer)
107 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoDecoder_PictureReady,
108 OnMsgPictureReady)
109 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoDecoder_NotifyError,
110 OnMsgNotifyError)
111 IPC_MESSAGE_UNHANDLED(handled = false)
112 IPC_END_MESSAGE_MAP()
113 DCHECK(handled);
114 return handled;
115 }
116
OnMsgProvidePictureBuffers(const HostResource & decoder,uint32_t req_num_of_bufs,const PP_Size & dimensions,uint32_t texture_target)117 void PPP_VideoDecoder_Proxy::OnMsgProvidePictureBuffers(
118 const HostResource& decoder,
119 uint32_t req_num_of_bufs,
120 const PP_Size& dimensions,
121 uint32_t texture_target) {
122 PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
123 PluginResourceForHostResource(decoder);
124 if (!plugin_decoder)
125 return;
126 CallWhileUnlocked(ppp_video_decoder_impl_->ProvidePictureBuffers,
127 decoder.instance(),
128 plugin_decoder,
129 req_num_of_bufs,
130 &dimensions,
131 texture_target);
132 }
133
OnMsgDismissPictureBuffer(const HostResource & decoder,int32_t picture_id)134 void PPP_VideoDecoder_Proxy::OnMsgDismissPictureBuffer(
135 const HostResource& decoder, int32_t picture_id) {
136 PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
137 PluginResourceForHostResource(decoder);
138 if (!plugin_decoder)
139 return;
140 CallWhileUnlocked(ppp_video_decoder_impl_->DismissPictureBuffer,
141 decoder.instance(),
142 plugin_decoder,
143 picture_id);
144 }
145
OnMsgPictureReady(const HostResource & decoder,const PP_Picture_Dev & picture)146 void PPP_VideoDecoder_Proxy::OnMsgPictureReady(
147 const HostResource& decoder, const PP_Picture_Dev& picture) {
148 PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
149 PluginResourceForHostResource(decoder);
150 if (!plugin_decoder)
151 return;
152 CallWhileUnlocked(ppp_video_decoder_impl_->PictureReady,
153 decoder.instance(),
154 plugin_decoder,
155 &picture);
156 }
157
OnMsgNotifyError(const HostResource & decoder,PP_VideoDecodeError_Dev error)158 void PPP_VideoDecoder_Proxy::OnMsgNotifyError(
159 const HostResource& decoder, PP_VideoDecodeError_Dev error) {
160 PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
161 PluginResourceForHostResource(decoder);
162 if (!plugin_decoder)
163 return;
164 CallWhileUnlocked(ppp_video_decoder_impl_->NotifyError,
165 decoder.instance(),
166 plugin_decoder,
167 error);
168 }
169
170 } // namespace proxy
171 } // namespace ppapi
172