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/c/pp_errors.h"
6 #include "ppapi/shared_impl/ppb_device_ref_shared.h"
7 #include "ppapi/shared_impl/tracked_callback.h"
8 #include "ppapi/thunk/enter.h"
9 #include "ppapi/thunk/ppb_device_ref_api.h"
10 #include "ppapi/thunk/ppb_video_capture_api.h"
11 #include "ppapi/thunk/resource_creation_api.h"
12 #include "ppapi/thunk/thunk.h"
13
14 namespace ppapi {
15 namespace thunk {
16
17 namespace {
18
19 typedef EnterResource<PPB_VideoCapture_API> EnterVideoCapture;
20
Create(PP_Instance instance)21 PP_Resource Create(PP_Instance instance) {
22 EnterResourceCreation enter(instance);
23 if (enter.failed())
24 return 0;
25 return enter.functions()->CreateVideoCapture(instance);
26 }
27
IsVideoCapture(PP_Resource resource)28 PP_Bool IsVideoCapture(PP_Resource resource) {
29 EnterVideoCapture enter(resource, false);
30 return PP_FromBool(enter.succeeded());
31 }
32
EnumerateDevices0_2(PP_Resource video_capture,PP_Resource * devices,PP_CompletionCallback callback)33 int32_t EnumerateDevices0_2(PP_Resource video_capture,
34 PP_Resource* devices,
35 PP_CompletionCallback callback) {
36 EnterVideoCapture enter(video_capture, callback, true);
37 if (enter.failed())
38 return enter.retval();
39
40 return enter.SetResult(enter.object()->EnumerateDevices0_2(devices,
41 enter.callback()));
42 }
43
EnumerateDevices(PP_Resource video_capture,PP_ArrayOutput output,PP_CompletionCallback callback)44 int32_t EnumerateDevices(PP_Resource video_capture,
45 PP_ArrayOutput output,
46 PP_CompletionCallback callback) {
47 EnterVideoCapture enter(video_capture, callback, true);
48 if (enter.failed())
49 return enter.retval();
50
51 return enter.SetResult(enter.object()->EnumerateDevices(output,
52 enter.callback()));
53 }
54
MonitorDeviceChange(PP_Resource video_capture,PP_MonitorDeviceChangeCallback callback,void * user_data)55 int32_t MonitorDeviceChange(PP_Resource video_capture,
56 PP_MonitorDeviceChangeCallback callback,
57 void* user_data) {
58 EnterVideoCapture enter(video_capture, true);
59 if (enter.failed())
60 return enter.retval();
61 return enter.object()->MonitorDeviceChange(callback, user_data);
62 }
63
Open(PP_Resource video_capture,PP_Resource device_ref,const PP_VideoCaptureDeviceInfo_Dev * requested_info,uint32_t buffer_count,PP_CompletionCallback callback)64 int32_t Open(PP_Resource video_capture,
65 PP_Resource device_ref,
66 const PP_VideoCaptureDeviceInfo_Dev* requested_info,
67 uint32_t buffer_count,
68 PP_CompletionCallback callback) {
69 EnterVideoCapture enter(video_capture, callback, true);
70 if (enter.failed())
71 return enter.retval();
72
73 std::string device_id;
74 // |device_id| remains empty if |device_ref| is 0, which means the default
75 // device.
76 if (device_ref != 0) {
77 EnterResourceNoLock<PPB_DeviceRef_API> enter_device_ref(device_ref, true);
78 if (enter_device_ref.failed())
79 return enter.SetResult(PP_ERROR_BADRESOURCE);
80 device_id = enter_device_ref.object()->GetDeviceRefData().id;
81 }
82
83 return enter.SetResult(enter.object()->Open(
84 device_id, *requested_info, buffer_count, enter.callback()));
85 }
86
StartCapture(PP_Resource video_capture)87 int32_t StartCapture(PP_Resource video_capture) {
88 EnterVideoCapture enter(video_capture, true);
89 if (enter.failed())
90 return enter.retval();
91 return enter.object()->StartCapture();
92 }
93
ReuseBuffer(PP_Resource video_capture,uint32_t buffer)94 int32_t ReuseBuffer(PP_Resource video_capture,
95 uint32_t buffer) {
96 EnterVideoCapture enter(video_capture, true);
97 if (enter.failed())
98 return enter.retval();
99 return enter.object()->ReuseBuffer(buffer);
100 }
101
StopCapture(PP_Resource video_capture)102 int32_t StopCapture(PP_Resource video_capture) {
103 EnterVideoCapture enter(video_capture, true);
104 if (enter.failed())
105 return enter.retval();
106 return enter.object()->StopCapture();
107 }
108
Close(PP_Resource video_capture)109 void Close(PP_Resource video_capture) {
110 EnterVideoCapture enter(video_capture, true);
111 if (enter.succeeded())
112 enter.object()->Close();
113 }
114
115 const PPB_VideoCapture_Dev_0_2 g_ppb_video_capture_0_2_thunk = {
116 &Create,
117 &IsVideoCapture,
118 &EnumerateDevices0_2,
119 &Open,
120 &StartCapture,
121 &ReuseBuffer,
122 &StopCapture,
123 &Close
124 };
125
126 const PPB_VideoCapture_Dev_0_3 g_ppb_video_capture_0_3_thunk = {
127 &Create,
128 &IsVideoCapture,
129 &EnumerateDevices,
130 &MonitorDeviceChange,
131 &Open,
132 &StartCapture,
133 &ReuseBuffer,
134 &StopCapture,
135 &Close
136 };
137
138 } // namespace
139
GetPPB_VideoCapture_Dev_0_2_Thunk()140 const PPB_VideoCapture_Dev_0_2* GetPPB_VideoCapture_Dev_0_2_Thunk() {
141 return &g_ppb_video_capture_0_2_thunk;
142 }
143
GetPPB_VideoCapture_Dev_0_3_Thunk()144 const PPB_VideoCapture_Dev_0_3* GetPPB_VideoCapture_Dev_0_3_Thunk() {
145 return &g_ppb_video_capture_0_3_thunk;
146 }
147
148 } // namespace thunk
149 } // namespace ppapi
150