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| 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/ppb_video_capture_proxy.h" | |
| 6 | |
| 7 #include "base/compiler_specific.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "build/build_config.h" | |
| 10 #include "ppapi/c/pp_errors.h" | |
| 11 #include "ppapi/c/pp_resource.h" | |
| 12 #include "ppapi/c/ppb_core.h" | |
| 13 #include "ppapi/c/dev/ppb_video_capture_dev.h" | |
| 14 #include "ppapi/proxy/enter_proxy.h" | |
| 15 #include "ppapi/proxy/host_dispatcher.h" | |
| 16 #include "ppapi/proxy/plugin_dispatcher.h" | |
| 17 #include "ppapi/proxy/ppapi_messages.h" | |
| 18 #include "ppapi/proxy/ppb_buffer_proxy.h" | |
| 19 #include "ppapi/shared_impl/ppapi_globals.h" | |
| 20 #include "ppapi/shared_impl/ppb_video_capture_shared.h" | |
| 21 #include "ppapi/shared_impl/proxy_lock.h" | |
| 22 #include "ppapi/shared_impl/resource_tracker.h" | |
| 23 #include "ppapi/shared_impl/tracked_callback.h" | |
| 24 #include "ppapi/thunk/ppb_buffer_api.h" | |
| 25 #include "ppapi/thunk/ppb_buffer_trusted_api.h" | |
| 26 #include "ppapi/thunk/ppb_video_capture_api.h" | |
| 27 #include "ppapi/thunk/resource_creation_api.h" | |
| 28 #include "ppapi/thunk/thunk.h" | |
| 29 | |
| 30 using ppapi::thunk::EnterResourceNoLock; | |
| 31 using ppapi::thunk::PPB_Buffer_API; | |
| 32 using ppapi::thunk::PPB_BufferTrusted_API; | |
| 33 using ppapi::thunk::PPB_VideoCapture_API; | |
| 34 | |
| 35 namespace ppapi { | |
| 36 namespace proxy { | |
| 37 | |
| 38 namespace { | |
| 39 | |
| 40 InterfaceProxy* CreatePPPVideoCaptureProxy(Dispatcher* dispatcher) { | |
| 41 return new PPP_VideoCapture_Proxy(dispatcher); | |
| 42 } | |
| 43 | |
| 44 void OnDeviceInfo(PP_Instance instance, | |
| 45 PP_Resource resource, | |
| 46 const PP_VideoCaptureDeviceInfo_Dev* info, | |
| 47 uint32_t buffer_count, | |
| 48 const PP_Resource resources[]) { | |
| 49 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance); | |
| 50 if (!dispatcher) { | |
| 51 NOTREACHED(); | |
| 52 return; | |
| 53 } | |
| 54 HostResource host_resource; | |
| 55 host_resource.SetHostResource(instance, resource); | |
| 56 std::vector<PPPVideoCapture_Buffer> buffers(buffer_count); | |
| 57 const PPB_Core* core = static_cast<const PPB_Core*>( | |
| 58 dispatcher->local_get_interface()(PPB_CORE_INTERFACE)); | |
| 59 DCHECK(core); | |
| 60 for (uint32_t i = 0; i < buffer_count; ++i) { | |
| 61 // We need to take a ref on the resource now. The browser may drop | |
| 62 // references once we return from here, but we're sending an asynchronous | |
| 63 // message. The plugin side takes ownership of that reference. | |
| 64 core->AddRefResource(resources[i]); | |
| 65 buffers[i].resource.SetHostResource(instance, resources[i]); | |
| 66 { | |
| 67 EnterResourceNoLock<PPB_Buffer_API> enter(resources[i], true); | |
| 68 DCHECK(enter.succeeded()); | |
| 69 PP_Bool result = enter.object()->Describe(&buffers[i].size); | |
| 70 DCHECK(result); | |
| 71 } | |
| 72 { | |
| 73 EnterResourceNoLock<PPB_BufferTrusted_API> enter(resources[i], true); | |
| 74 DCHECK(enter.succeeded()); | |
| 75 int handle; | |
| 76 int32_t result = enter.object()->GetSharedMemory(&handle); | |
| 77 DCHECK(result == PP_OK); | |
| 78 // TODO(piman/brettw): Change trusted interface to return a PP_FileHandle, | |
| 79 // those casts are ugly. | |
| 80 base::PlatformFile platform_file = | |
| 81 #if defined(OS_WIN) | |
| 82 reinterpret_cast<HANDLE>(static_cast<intptr_t>(handle)); | |
| 83 #elif defined(OS_POSIX) | |
| 84 handle; | |
| 85 #else | |
| 86 #error Not implemented. | |
| 87 #endif | |
| 88 buffers[i].handle = | |
| 89 dispatcher->ShareHandleWithRemote(platform_file, false); | |
| 90 } | |
| 91 } | |
| 92 dispatcher->Send(new PpapiMsg_PPPVideoCapture_OnDeviceInfo( | |
| 93 API_ID_PPP_VIDEO_CAPTURE_DEV, host_resource, *info, buffers)); | |
| 94 } | |
| 95 | |
| 96 void OnStatus(PP_Instance instance, PP_Resource resource, uint32_t status) { | |
| 97 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance); | |
| 98 if (!dispatcher) { | |
| 99 NOTREACHED(); | |
| 100 return; | |
| 101 } | |
| 102 HostResource host_resource; | |
| 103 host_resource.SetHostResource(instance, resource); | |
| 104 dispatcher->Send(new PpapiMsg_PPPVideoCapture_OnStatus( | |
| 105 API_ID_PPP_VIDEO_CAPTURE_DEV, host_resource, status)); | |
| 106 } | |
| 107 | |
| 108 void OnError(PP_Instance instance, PP_Resource resource, uint32_t error_code) { | |
| 109 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance); | |
| 110 if (!dispatcher) { | |
| 111 NOTREACHED(); | |
| 112 return; | |
| 113 } | |
| 114 HostResource host_resource; | |
| 115 host_resource.SetHostResource(instance, resource); | |
| 116 dispatcher->Send(new PpapiMsg_PPPVideoCapture_OnError( | |
| 117 API_ID_PPP_VIDEO_CAPTURE_DEV, host_resource, error_code)); | |
| 118 } | |
| 119 | |
| 120 void OnBufferReady(PP_Instance instance, | |
| 121 PP_Resource resource, | |
| 122 uint32_t buffer) { | |
| 123 HostDispatcher* dispatcher = HostDispatcher::GetForInstance(instance); | |
| 124 if (!dispatcher) { | |
| 125 NOTREACHED(); | |
| 126 return; | |
| 127 } | |
| 128 HostResource host_resource; | |
| 129 host_resource.SetHostResource(instance, resource); | |
| 130 dispatcher->Send(new PpapiMsg_PPPVideoCapture_OnBufferReady( | |
| 131 API_ID_PPP_VIDEO_CAPTURE_DEV, host_resource, buffer)); | |
| 132 } | |
| 133 | |
| 134 PPP_VideoCapture_Dev ppp_video_capture = { | |
| 135 OnDeviceInfo, | |
| 136 OnStatus, | |
| 137 OnError, | |
| 138 OnBufferReady | |
| 139 }; | |
| 140 | |
| 141 } // namespace | |
| 142 | |
| 143 class VideoCapture : public PPB_VideoCapture_Shared { | |
| 144 public: | |
| 145 explicit VideoCapture(const HostResource& resource); | |
| 146 virtual ~VideoCapture(); | |
| 147 | |
| 148 bool OnStatus(PP_VideoCaptureStatus_Dev status); | |
| 149 | |
| 150 void set_status(PP_VideoCaptureStatus_Dev status) { | |
| 151 SetStatus(status, true); | |
| 152 } | |
| 153 | |
| 154 void SetBufferCount(size_t count) { | |
| 155 buffer_in_use_ = std::vector<bool>(count); | |
| 156 } | |
| 157 | |
| 158 void SetBufferInUse(uint32_t buffer) { | |
| 159 DCHECK(buffer < buffer_in_use_.size()); | |
| 160 buffer_in_use_[buffer] = true; | |
| 161 } | |
| 162 | |
| 163 private: | |
| 164 // PPB_VideoCapture_Shared implementation. | |
| 165 virtual int32_t InternalEnumerateDevices( | |
| 166 PP_Resource* devices, | |
| 167 scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
| 168 virtual int32_t InternalOpen( | |
| 169 const std::string& device_id, | |
| 170 const PP_VideoCaptureDeviceInfo_Dev& requested_info, | |
| 171 uint32_t buffer_count, | |
| 172 scoped_refptr<TrackedCallback> callback) OVERRIDE; | |
| 173 virtual int32_t InternalStartCapture() OVERRIDE; | |
| 174 virtual int32_t InternalReuseBuffer(uint32_t buffer) OVERRIDE; | |
| 175 virtual int32_t InternalStopCapture() OVERRIDE; | |
| 176 virtual void InternalClose() OVERRIDE; | |
| 177 virtual int32_t InternalStartCapture0_1( | |
| 178 const PP_VideoCaptureDeviceInfo_Dev& requested_info, | |
| 179 uint32_t buffer_count) OVERRIDE; | |
| 180 virtual const std::vector<DeviceRefData>& | |
| 181 InternalGetDeviceRefData() const OVERRIDE; | |
| 182 | |
| 183 PluginDispatcher* GetDispatcher() const { | |
| 184 return PluginDispatcher::GetForResource(this); | |
| 185 } | |
| 186 | |
| 187 std::vector<bool> buffer_in_use_; | |
| 188 | |
| 189 DISALLOW_COPY_AND_ASSIGN(VideoCapture); | |
| 190 }; | |
| 191 | |
| 192 VideoCapture::VideoCapture(const HostResource& resource) | |
| 193 : PPB_VideoCapture_Shared(resource) { | |
| 194 } | |
| 195 | |
| 196 VideoCapture::~VideoCapture() { | |
| 197 Close(); | |
| 198 } | |
| 199 | |
| 200 bool VideoCapture::OnStatus(PP_VideoCaptureStatus_Dev status) { | |
| 201 switch (status) { | |
| 202 case PP_VIDEO_CAPTURE_STATUS_STARTED: | |
| 203 case PP_VIDEO_CAPTURE_STATUS_PAUSED: | |
| 204 case PP_VIDEO_CAPTURE_STATUS_STOPPED: | |
| 205 return SetStatus(status, false); | |
| 206 case PP_VIDEO_CAPTURE_STATUS_STARTING: | |
| 207 case PP_VIDEO_CAPTURE_STATUS_STOPPING: | |
| 208 // Those states are not sent by the browser. | |
| 209 break; | |
| 210 } | |
| 211 | |
| 212 NOTREACHED(); | |
| 213 return false; | |
| 214 } | |
| 215 | |
| 216 int32_t VideoCapture::InternalEnumerateDevices( | |
| 217 PP_Resource* devices, | |
| 218 scoped_refptr<TrackedCallback> callback) { | |
| 219 devices_ = devices; | |
| 220 enumerate_devices_callback_ = callback; | |
| 221 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_EnumerateDevices( | |
| 222 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource())); | |
| 223 return PP_OK_COMPLETIONPENDING; | |
| 224 } | |
| 225 | |
| 226 int32_t VideoCapture::InternalOpen( | |
| 227 const std::string& device_id, | |
| 228 const PP_VideoCaptureDeviceInfo_Dev& requested_info, | |
| 229 uint32_t buffer_count, | |
| 230 scoped_refptr<TrackedCallback> callback) { | |
| 231 open_callback_ = callback; | |
| 232 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_Open( | |
| 233 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource(), device_id, requested_info, | |
| 234 buffer_count)); | |
| 235 return PP_OK_COMPLETIONPENDING; | |
| 236 } | |
| 237 | |
| 238 int32_t VideoCapture::InternalStartCapture() { | |
| 239 buffer_in_use_.clear(); | |
| 240 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_StartCapture( | |
| 241 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource())); | |
| 242 return PP_OK; | |
| 243 } | |
| 244 | |
| 245 int32_t VideoCapture::InternalReuseBuffer(uint32_t buffer) { | |
| 246 if (buffer >= buffer_in_use_.size() || !buffer_in_use_[buffer]) | |
| 247 return PP_ERROR_BADARGUMENT; | |
| 248 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_ReuseBuffer( | |
| 249 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource(), buffer)); | |
| 250 return PP_OK; | |
| 251 } | |
| 252 | |
| 253 int32_t VideoCapture::InternalStopCapture() { | |
| 254 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_StopCapture( | |
| 255 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource())); | |
| 256 return PP_OK; | |
| 257 } | |
| 258 | |
| 259 void VideoCapture::InternalClose() { | |
| 260 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_Close( | |
| 261 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource())); | |
| 262 } | |
| 263 | |
| 264 int32_t VideoCapture::InternalStartCapture0_1( | |
| 265 const PP_VideoCaptureDeviceInfo_Dev& requested_info, | |
| 266 uint32_t buffer_count) { | |
| 267 buffer_in_use_.clear(); | |
| 268 GetDispatcher()->Send(new PpapiHostMsg_PPBVideoCapture_StartCapture0_1( | |
| 269 API_ID_PPB_VIDEO_CAPTURE_DEV, host_resource(), requested_info, | |
| 270 buffer_count)); | |
| 271 return PP_OK; | |
| 272 } | |
| 273 | |
| 274 const std::vector<DeviceRefData>& | |
| 275 VideoCapture::InternalGetDeviceRefData() const { | |
| 276 // This should never be called at the plugin side. | |
| 277 NOTREACHED(); | |
| 278 static std::vector<DeviceRefData> result; | |
| 279 return result; | |
| 280 } | |
| 281 | |
| 282 PPB_VideoCapture_Proxy::PPB_VideoCapture_Proxy(Dispatcher* dispatcher) | |
| 283 : InterfaceProxy(dispatcher), | |
| 284 ALLOW_THIS_IN_INITIALIZER_LIST(callback_factory_(this)) { | |
| 285 } | |
| 286 | |
| 287 PPB_VideoCapture_Proxy::~PPB_VideoCapture_Proxy() { | |
| 288 } | |
| 289 | |
| 290 // static | |
| 291 PP_Resource PPB_VideoCapture_Proxy::CreateProxyResource(PP_Instance instance) { | |
| 292 PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(instance); | |
| 293 if (!dispatcher) | |
| 294 return 0; | |
| 295 | |
| 296 HostResource result; | |
| 297 dispatcher->Send(new PpapiHostMsg_PPBVideoCapture_Create( | |
| 298 API_ID_PPB_VIDEO_CAPTURE_DEV, instance, &result)); | |
| 299 if (result.is_null()) | |
| 300 return 0; | |
| 301 return (new VideoCapture(result))->GetReference(); | |
| 302 } | |
| 303 | |
| 304 bool PPB_VideoCapture_Proxy::OnMessageReceived(const IPC::Message& msg) { | |
| 305 if (!dispatcher()->permissions().HasPermission(PERMISSION_DEV)) | |
| 306 return false; | |
| 307 | |
| 308 bool handled = true; | |
| 309 IPC_BEGIN_MESSAGE_MAP(PPB_VideoCapture_Proxy, msg) | |
| 310 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_Create, OnMsgCreate) | |
| 311 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_EnumerateDevices, | |
| 312 OnMsgEnumerateDevices) | |
| 313 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_Open, OnMsgOpen) | |
| 314 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_StartCapture, | |
| 315 OnMsgStartCapture) | |
| 316 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_ReuseBuffer, | |
| 317 OnMsgReuseBuffer) | |
| 318 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_StopCapture, | |
| 319 OnMsgStopCapture) | |
| 320 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_Close, OnMsgClose) | |
| 321 IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBVideoCapture_StartCapture0_1, | |
| 322 OnMsgStartCapture0_1) | |
| 323 | |
| 324 IPC_MESSAGE_HANDLER(PpapiMsg_PPBVideoCapture_EnumerateDevicesACK, | |
| 325 OnMsgEnumerateDevicesACK) | |
| 326 IPC_MESSAGE_HANDLER(PpapiMsg_PPBVideoCapture_OpenACK, | |
| 327 OnMsgOpenACK) | |
| 328 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 329 IPC_END_MESSAGE_MAP() | |
| 330 // TODO(brettw) handle bad messages! | |
| 331 return handled; | |
| 332 } | |
| 333 | |
| 334 void PPB_VideoCapture_Proxy::OnMsgCreate(PP_Instance instance, | |
| 335 HostResource* result_resource) { | |
| 336 thunk::EnterResourceCreation enter(instance); | |
| 337 if (enter.succeeded()) { | |
| 338 result_resource->SetHostResource( | |
| 339 instance, | |
| 340 enter.functions()->CreateVideoCapture(instance)); | |
| 341 } | |
| 342 } | |
| 343 | |
| 344 void PPB_VideoCapture_Proxy::OnMsgEnumerateDevices( | |
| 345 const HostResource& resource) { | |
| 346 EnterHostFromHostResourceForceCallback<PPB_VideoCapture_API> enter( | |
| 347 resource, callback_factory_, | |
| 348 &PPB_VideoCapture_Proxy::EnumerateDevicesACKInHost, resource); | |
| 349 | |
| 350 if (enter.succeeded()) | |
| 351 enter.SetResult(enter.object()->EnumerateDevices(NULL, enter.callback())); | |
| 352 } | |
| 353 | |
| 354 void PPB_VideoCapture_Proxy::OnMsgOpen( | |
| 355 const ppapi::HostResource& resource, | |
| 356 const std::string& device_id, | |
| 357 const PP_VideoCaptureDeviceInfo_Dev& info, | |
| 358 uint32_t buffers) { | |
| 359 EnterHostFromHostResourceForceCallback<PPB_VideoCapture_API> enter( | |
| 360 resource, callback_factory_, &PPB_VideoCapture_Proxy::OpenACKInHost, | |
| 361 resource); | |
| 362 | |
| 363 if (enter.succeeded()) { | |
| 364 enter.SetResult(enter.object()->Open(device_id, info, buffers, | |
| 365 enter.callback())); | |
| 366 } | |
| 367 } | |
| 368 | |
| 369 void PPB_VideoCapture_Proxy::OnMsgStartCapture(const HostResource& resource) { | |
| 370 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 371 if (enter.succeeded()) | |
| 372 enter.object()->StartCapture(); | |
| 373 } | |
| 374 | |
| 375 void PPB_VideoCapture_Proxy::OnMsgReuseBuffer(const HostResource& resource, | |
| 376 uint32_t buffer) { | |
| 377 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 378 if (enter.succeeded()) | |
| 379 enter.object()->ReuseBuffer(buffer); | |
| 380 } | |
| 381 | |
| 382 void PPB_VideoCapture_Proxy::OnMsgStopCapture(const HostResource& resource) { | |
| 383 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 384 if (enter.succeeded()) | |
| 385 enter.object()->StopCapture(); | |
| 386 } | |
| 387 | |
| 388 void PPB_VideoCapture_Proxy::OnMsgClose(const HostResource& resource) { | |
| 389 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 390 if (enter.succeeded()) | |
| 391 enter.object()->Close(); | |
| 392 } | |
| 393 | |
| 394 void PPB_VideoCapture_Proxy::OnMsgStartCapture0_1( | |
| 395 const HostResource& resource, | |
| 396 const PP_VideoCaptureDeviceInfo_Dev& info, | |
| 397 uint32_t buffers) { | |
| 398 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 399 if (enter.succeeded()) | |
| 400 enter.object()->StartCapture0_1(info, buffers); | |
| 401 } | |
| 402 | |
| 403 void PPB_VideoCapture_Proxy::OnMsgEnumerateDevicesACK( | |
| 404 const HostResource& resource, | |
| 405 int32_t result, | |
| 406 const std::vector<ppapi::DeviceRefData>& devices) { | |
| 407 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 408 if (enter.succeeded()) { | |
| 409 static_cast<VideoCapture*>(enter.object())->OnEnumerateDevicesComplete( | |
| 410 result, devices); | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 void PPB_VideoCapture_Proxy::OnMsgOpenACK( | |
| 415 const HostResource& resource, | |
| 416 int32_t result) { | |
| 417 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 418 if (enter.succeeded()) | |
| 419 static_cast<VideoCapture*>(enter.object())->OnOpenComplete(result); | |
| 420 } | |
| 421 | |
| 422 void PPB_VideoCapture_Proxy::EnumerateDevicesACKInHost( | |
| 423 int32_t result, | |
| 424 const HostResource& resource) { | |
| 425 EnterHostFromHostResource<PPB_VideoCapture_API> enter(resource); | |
| 426 dispatcher()->Send(new PpapiMsg_PPBVideoCapture_EnumerateDevicesACK( | |
| 427 API_ID_PPB_VIDEO_CAPTURE_DEV, resource, result, | |
| 428 enter.succeeded() && result == PP_OK ? | |
| 429 enter.object()->GetDeviceRefData() : std::vector<DeviceRefData>())); | |
| 430 } | |
| 431 | |
| 432 void PPB_VideoCapture_Proxy::OpenACKInHost(int32_t result, | |
| 433 const HostResource& resource) { | |
| 434 dispatcher()->Send(new PpapiMsg_PPBVideoCapture_OpenACK( | |
| 435 API_ID_PPB_VIDEO_CAPTURE_DEV, resource, result)); | |
| 436 } | |
| 437 | |
| 438 PPP_VideoCapture_Proxy::PPP_VideoCapture_Proxy(Dispatcher* dispatcher) | |
| 439 : InterfaceProxy(dispatcher), | |
| 440 ppp_video_capture_impl_(NULL) { | |
| 441 if (dispatcher->IsPlugin()) { | |
| 442 ppp_video_capture_impl_ = static_cast<const PPP_VideoCapture_Dev*>( | |
| 443 dispatcher->local_get_interface()(PPP_VIDEO_CAPTURE_DEV_INTERFACE)); | |
| 444 } | |
| 445 } | |
| 446 | |
| 447 PPP_VideoCapture_Proxy::~PPP_VideoCapture_Proxy() { | |
| 448 } | |
| 449 | |
| 450 // static | |
| 451 const InterfaceProxy::Info* PPP_VideoCapture_Proxy::GetInfo() { | |
| 452 static const Info info = { | |
| 453 &ppp_video_capture, | |
| 454 PPP_VIDEO_CAPTURE_DEV_INTERFACE, | |
| 455 API_ID_PPP_VIDEO_CAPTURE_DEV, | |
| 456 false, | |
| 457 &CreatePPPVideoCaptureProxy, | |
| 458 }; | |
| 459 return &info; | |
| 460 } | |
| 461 | |
| 462 bool PPP_VideoCapture_Proxy::OnMessageReceived(const IPC::Message& msg) { | |
| 463 bool handled = true; | |
| 464 IPC_BEGIN_MESSAGE_MAP(PPP_VideoCapture_Proxy, msg) | |
| 465 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoCapture_OnDeviceInfo, | |
| 466 OnMsgOnDeviceInfo) | |
| 467 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoCapture_OnStatus, OnMsgOnStatus) | |
| 468 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoCapture_OnError, OnMsgOnError) | |
| 469 IPC_MESSAGE_HANDLER(PpapiMsg_PPPVideoCapture_OnBufferReady, | |
| 470 OnMsgOnBufferReady) | |
| 471 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 472 IPC_END_MESSAGE_MAP() | |
| 473 // TODO(brettw) handle bad messages! | |
| 474 return handled; | |
| 475 } | |
| 476 | |
| 477 void PPP_VideoCapture_Proxy::OnMsgOnDeviceInfo( | |
| 478 const HostResource& host_resource, | |
| 479 const PP_VideoCaptureDeviceInfo_Dev& info, | |
| 480 const std::vector<PPPVideoCapture_Buffer>& buffers) { | |
| 481 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(host_resource); | |
| 482 if (enter.failed() || !ppp_video_capture_impl_) | |
| 483 return; | |
| 484 | |
| 485 PluginResourceTracker* tracker = | |
| 486 PluginGlobals::Get()->plugin_resource_tracker(); | |
| 487 scoped_array<PP_Resource> resources(new PP_Resource[buffers.size()]); | |
| 488 for (size_t i = 0; i < buffers.size(); ++i) { | |
| 489 // We assume that the browser created a new set of resources. | |
| 490 DCHECK(!tracker->PluginResourceForHostResource(buffers[i].resource)); | |
| 491 resources[i] = PPB_Buffer_Proxy::AddProxyResource(buffers[i].resource, | |
| 492 buffers[i].handle, | |
| 493 buffers[i].size); | |
| 494 } | |
| 495 | |
| 496 VideoCapture* capture = static_cast<VideoCapture*>(enter.object()); | |
| 497 capture->SetBufferCount(buffers.size()); | |
| 498 CallWhileUnlocked(ppp_video_capture_impl_->OnDeviceInfo, | |
| 499 host_resource.instance(), | |
| 500 capture->pp_resource(), | |
| 501 &info, | |
| 502 static_cast<uint32_t>(buffers.size()), | |
| 503 const_cast<const PP_Resource*>(resources.get())); | |
| 504 for (size_t i = 0; i < buffers.size(); ++i) | |
| 505 tracker->ReleaseResource(resources[i]); | |
| 506 } | |
| 507 | |
| 508 void PPP_VideoCapture_Proxy::OnMsgOnStatus(const HostResource& host_resource, | |
| 509 uint32_t status) { | |
| 510 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(host_resource); | |
| 511 if (enter.failed() || !ppp_video_capture_impl_) | |
| 512 return; | |
| 513 | |
| 514 VideoCapture* capture = static_cast<VideoCapture*>(enter.object()); | |
| 515 if (!capture->OnStatus(static_cast<PP_VideoCaptureStatus_Dev>(status))) | |
| 516 return; | |
| 517 CallWhileUnlocked(ppp_video_capture_impl_->OnStatus, | |
| 518 host_resource.instance(), capture->pp_resource(), status); | |
| 519 } | |
| 520 | |
| 521 void PPP_VideoCapture_Proxy::OnMsgOnError(const HostResource& host_resource, | |
| 522 uint32_t error_code) { | |
| 523 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(host_resource); | |
| 524 if (enter.failed() || !ppp_video_capture_impl_) | |
| 525 return; | |
| 526 | |
| 527 VideoCapture* capture = static_cast<VideoCapture*>(enter.object()); | |
| 528 capture->set_status(PP_VIDEO_CAPTURE_STATUS_STOPPED); | |
| 529 CallWhileUnlocked(ppp_video_capture_impl_->OnError, | |
| 530 host_resource.instance(), capture->pp_resource(), error_code); | |
| 531 } | |
| 532 | |
| 533 void PPP_VideoCapture_Proxy::OnMsgOnBufferReady( | |
| 534 const HostResource& host_resource, uint32_t buffer) { | |
| 535 EnterPluginFromHostResource<PPB_VideoCapture_API> enter(host_resource); | |
| 536 if (enter.failed() || !ppp_video_capture_impl_) | |
| 537 return; | |
| 538 | |
| 539 VideoCapture* capture = static_cast<VideoCapture*>(enter.object()); | |
| 540 capture->SetBufferInUse(buffer); | |
| 541 CallWhileUnlocked(ppp_video_capture_impl_->OnBufferReady, | |
| 542 host_resource.instance(), capture->pp_resource(), buffer); | |
| 543 } | |
| 544 | |
| 545 } // namespace proxy | |
| 546 } // namespace ppapi | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 11274036:
Refactor video capture to new design (Closed)
Base URL: http://git.chromium.org/chromium/src.git@master