The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | ** |
| 3 | ** Copyright (C) 2008, The Android Open Source Project |
| 4 | ** Copyright (C) 2008 HTC Inc. |
| 5 | ** |
| 6 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | ** you may not use this file except in compliance with the License. |
| 8 | ** You may obtain a copy of the License at |
| 9 | ** |
| 10 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | ** |
| 12 | ** Unless required by applicable law or agreed to in writing, software |
| 13 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | ** See the License for the specific language governing permissions and |
| 16 | ** limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | //#define LOG_NDEBUG 0 |
| 20 | #define LOG_TAG "CameraService" |
| 21 | #include <utils/Log.h> |
| 22 | |
| 23 | #include <utils/IServiceManager.h> |
| 24 | #include <utils/IPCThreadState.h> |
| 25 | #include <utils/String16.h> |
| 26 | #include <utils/Errors.h> |
| 27 | #include <utils/MemoryBase.h> |
| 28 | #include <utils/MemoryHeapBase.h> |
| 29 | #include <ui/ICameraService.h> |
| 30 | |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 31 | #include <media/mediaplayer.h> |
| 32 | #include <media/AudioSystem.h> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 33 | #include "CameraService.h" |
| 34 | |
Eric Laurent | eeea922 | 2009-03-26 01:57:59 -0700 | [diff] [blame] | 35 | #include <cutils/properties.h> |
| 36 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 37 | namespace android { |
| 38 | |
| 39 | extern "C" { |
| 40 | #include <stdio.h> |
| 41 | #include <sys/types.h> |
| 42 | #include <sys/stat.h> |
| 43 | #include <fcntl.h> |
| 44 | #include <pthread.h> |
| 45 | } |
| 46 | |
| 47 | // When you enable this, as well as DEBUG_REFS=1 and |
| 48 | // DEBUG_REFS_ENABLED_BY_DEFAULT=0 in libutils/RefBase.cpp, this will track all |
| 49 | // references to the CameraService::Client in order to catch the case where the |
| 50 | // client is being destroyed while a callback from the CameraHardwareInterface |
| 51 | // is outstanding. This is a serious bug because if we make another call into |
| 52 | // CameraHardwreInterface that itself triggers a callback, we will deadlock. |
| 53 | |
| 54 | #define DEBUG_CLIENT_REFERENCES 0 |
| 55 | |
| 56 | #define PICTURE_TIMEOUT seconds(5) |
| 57 | |
| 58 | #define DEBUG_DUMP_PREVIEW_FRAME_TO_FILE 0 /* n-th frame to write */ |
| 59 | #define DEBUG_DUMP_JPEG_SNAPSHOT_TO_FILE 0 |
| 60 | #define DEBUG_DUMP_YUV_SNAPSHOT_TO_FILE 0 |
| 61 | |
| 62 | #if DEBUG_DUMP_PREVIEW_FRAME_TO_FILE |
| 63 | static int debug_frame_cnt; |
| 64 | #endif |
| 65 | |
| 66 | // ---------------------------------------------------------------------------- |
| 67 | |
| 68 | void CameraService::instantiate() { |
| 69 | defaultServiceManager()->addService( |
| 70 | String16("media.camera"), new CameraService()); |
| 71 | } |
| 72 | |
| 73 | // ---------------------------------------------------------------------------- |
| 74 | |
| 75 | CameraService::CameraService() : |
| 76 | BnCameraService() |
| 77 | { |
| 78 | LOGI("CameraService started: pid=%d", getpid()); |
| 79 | } |
| 80 | |
| 81 | CameraService::~CameraService() |
| 82 | { |
| 83 | if (mClient != 0) { |
| 84 | LOGE("mClient was still connected in destructor!"); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | sp<ICamera> CameraService::connect(const sp<ICameraClient>& cameraClient) |
| 89 | { |
| 90 | LOGD("Connect E from ICameraClient %p", cameraClient->asBinder().get()); |
| 91 | |
| 92 | Mutex::Autolock lock(mLock); |
| 93 | sp<Client> client; |
| 94 | if (mClient != 0) { |
| 95 | sp<Client> currentClient = mClient.promote(); |
| 96 | if (currentClient != 0) { |
| 97 | sp<ICameraClient> currentCameraClient(currentClient->getCameraClient()); |
| 98 | if (cameraClient->asBinder() == currentCameraClient->asBinder()) { |
| 99 | // this is the same client reconnecting... |
| 100 | LOGD("Connect X same client (%p) is reconnecting...", cameraClient->asBinder().get()); |
| 101 | return currentClient; |
| 102 | } else { |
| 103 | // it's another client... reject it |
| 104 | LOGD("new client (%p) attempting to connect - rejected", cameraClient->asBinder().get()); |
| 105 | return client; |
| 106 | } |
| 107 | } else { |
| 108 | // can't promote, the previous client has died... |
| 109 | LOGD("new client connecting, old reference was dangling..."); |
| 110 | mClient.clear(); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | // create a new Client object |
| 115 | client = new Client(this, cameraClient, IPCThreadState::self()->getCallingPid()); |
| 116 | mClient = client; |
| 117 | #if DEBUG_CLIENT_REFERENCES |
| 118 | // Enable tracking for this object, and track increments and decrements of |
| 119 | // the refcount. |
| 120 | client->trackMe(true, true); |
| 121 | #endif |
| 122 | LOGD("Connect X"); |
| 123 | return client; |
| 124 | } |
| 125 | |
| 126 | void CameraService::removeClient(const sp<ICameraClient>& cameraClient) |
| 127 | { |
| 128 | // declar this outside the lock to make absolutely sure the |
| 129 | // destructor won't be called with the lock held. |
| 130 | sp<Client> client; |
| 131 | |
| 132 | Mutex::Autolock lock(mLock); |
| 133 | |
| 134 | if (mClient == 0) { |
| 135 | // This happens when we have already disconnected. |
| 136 | LOGV("mClient is null."); |
| 137 | return; |
| 138 | } |
| 139 | |
| 140 | // Promote mClient. It should never fail because we're called from |
| 141 | // a binder call, so someone has to have a strong reference. |
| 142 | client = mClient.promote(); |
| 143 | if (client == 0) { |
| 144 | LOGW("can't get a strong reference on mClient!"); |
| 145 | mClient.clear(); |
| 146 | return; |
| 147 | } |
| 148 | |
| 149 | if (cameraClient->asBinder() != client->getCameraClient()->asBinder()) { |
| 150 | // ugh! that's not our client!! |
| 151 | LOGW("removeClient() called, but mClient doesn't match!"); |
| 152 | } else { |
| 153 | // okay, good, forget about mClient |
| 154 | mClient.clear(); |
| 155 | } |
| 156 | } |
| 157 | |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 158 | static sp<MediaPlayer> newMediaPlayer(const char *file) |
| 159 | { |
| 160 | sp<MediaPlayer> mp = new MediaPlayer(); |
| 161 | if (mp->setDataSource(file) == NO_ERROR) { |
Eric Laurent | eeea922 | 2009-03-26 01:57:59 -0700 | [diff] [blame] | 162 | char value[PROPERTY_VALUE_MAX]; |
| 163 | property_get("ro.camera.sound.forced", value, "0"); |
| 164 | if (atoi(value)) { |
| 165 | mp->setAudioStreamType(AudioSystem::ENFORCED_AUDIBLE); |
| 166 | } else { |
| 167 | mp->setAudioStreamType(AudioSystem::SYSTEM); |
| 168 | } |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 169 | mp->prepare(); |
| 170 | } else { |
| 171 | mp.clear(); |
| 172 | LOGE("Failed to load CameraService sounds."); |
| 173 | } |
| 174 | return mp; |
| 175 | } |
| 176 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 177 | CameraService::Client::Client(const sp<CameraService>& cameraService, |
| 178 | const sp<ICameraClient>& cameraClient, pid_t clientPid) |
| 179 | { |
| 180 | LOGD("Client E constructor"); |
| 181 | mCameraService = cameraService; |
| 182 | mCameraClient = cameraClient; |
| 183 | mClientPid = clientPid; |
| 184 | mHardware = openCameraHardware(); |
| 185 | mUseOverlay = mHardware->useOverlay(); |
| 186 | |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 187 | mMediaPlayerClick = newMediaPlayer("/system/media/audio/ui/camera_click.ogg"); |
| 188 | mMediaPlayerBeep = newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg"); |
| 189 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 190 | // Callback is disabled by default |
| 191 | mPreviewCallbackFlag = FRAME_CALLBACK_FLAG_NOOP; |
| 192 | LOGD("Client X constructor"); |
| 193 | } |
| 194 | |
| 195 | status_t CameraService::Client::checkPid() |
| 196 | { |
| 197 | if (mClientPid == IPCThreadState::self()->getCallingPid()) return NO_ERROR; |
| 198 | LOGW("Attempt to use locked camera (%p) from different process", getCameraClient()->asBinder().get()); |
| 199 | return -EBUSY; |
| 200 | } |
| 201 | |
| 202 | status_t CameraService::Client::lock() |
| 203 | { |
| 204 | Mutex::Autolock _l(mLock); |
| 205 | // lock camera to this client if the the camera is unlocked |
| 206 | if (mClientPid == 0) { |
| 207 | mClientPid = IPCThreadState::self()->getCallingPid(); |
| 208 | return NO_ERROR; |
| 209 | } |
| 210 | // returns NO_ERROR if the client already owns the camera, -EBUSY otherwise |
| 211 | return checkPid(); |
| 212 | } |
| 213 | |
| 214 | status_t CameraService::Client::unlock() |
| 215 | { |
| 216 | Mutex::Autolock _l(mLock); |
| 217 | // allow anyone to use camera |
| 218 | LOGV("unlock (%p)", getCameraClient()->asBinder().get()); |
| 219 | status_t result = checkPid(); |
| 220 | if (result == NO_ERROR) mClientPid = 0; |
| 221 | return result; |
| 222 | } |
| 223 | |
| 224 | status_t CameraService::Client::connect(const sp<ICameraClient>& client) |
| 225 | { |
| 226 | // connect a new process to the camera |
| 227 | LOGV("connect (%p)", client->asBinder().get()); |
| 228 | |
| 229 | // I hate this hack, but things get really ugly when the media recorder |
| 230 | // service is handing back the camera to the app. The ICameraClient |
| 231 | // destructor will be called during the same IPC, making it look like |
| 232 | // the remote client is trying to disconnect. This hack temporarily |
| 233 | // sets the mClientPid to an invalid pid to prevent the hardware from |
| 234 | // being torn down. |
| 235 | { |
| 236 | |
| 237 | // hold a reference to the old client or we will deadlock if the client is |
| 238 | // in the same process and we hold the lock when we remove the reference |
| 239 | sp<ICameraClient> oldClient; |
| 240 | { |
| 241 | Mutex::Autolock _l(mLock); |
| 242 | if (mClientPid != 0) { |
| 243 | LOGW("Tried to connect to locked camera"); |
| 244 | return -EBUSY; |
| 245 | } |
| 246 | oldClient = mCameraClient; |
| 247 | |
| 248 | // did the client actually change? |
| 249 | if (client->asBinder() == mCameraClient->asBinder()) return NO_ERROR; |
| 250 | |
| 251 | mCameraClient = client; |
| 252 | mClientPid = -1; |
| 253 | mPreviewCallbackFlag = FRAME_CALLBACK_FLAG_NOOP; |
| 254 | LOGV("connect new process (%d) to existing camera client", mClientPid); |
| 255 | } |
| 256 | |
| 257 | } |
| 258 | // the old client destructor is called when oldClient goes out of scope |
| 259 | // now we set the new PID to lock the interface again |
| 260 | mClientPid = IPCThreadState::self()->getCallingPid(); |
| 261 | |
| 262 | return NO_ERROR; |
| 263 | } |
| 264 | |
| 265 | #if HAVE_ANDROID_OS |
| 266 | static void *unregister_surface(void *arg) |
| 267 | { |
| 268 | ISurface *surface = (ISurface *)arg; |
| 269 | surface->unregisterBuffers(); |
| 270 | IPCThreadState::self()->flushCommands(); |
| 271 | return NULL; |
| 272 | } |
| 273 | #endif |
| 274 | |
| 275 | CameraService::Client::~Client() |
| 276 | { |
| 277 | // tear down client |
| 278 | LOGD("Client (%p) E destructor", getCameraClient()->asBinder().get()); |
| 279 | if (mSurface != 0 && !mUseOverlay) { |
| 280 | #if HAVE_ANDROID_OS |
| 281 | pthread_t thr; |
| 282 | // We unregister the buffers in a different thread because binder does |
| 283 | // not let us make sychronous transactions in a binder destructor (that |
| 284 | // is, upon our reaching a refcount of zero.) |
| 285 | pthread_create(&thr, NULL, |
| 286 | unregister_surface, |
| 287 | mSurface.get()); |
| 288 | pthread_join(thr, NULL); |
| 289 | #else |
| 290 | mSurface->unregisterBuffers(); |
| 291 | #endif |
| 292 | } |
| 293 | |
Jason Sams | 7f1f3bb | 2009-03-24 17:58:31 -0700 | [diff] [blame] | 294 | if (mMediaPlayerBeep.get() != NULL) { |
| 295 | mMediaPlayerBeep->disconnect(); |
| 296 | mMediaPlayerBeep.clear(); |
| 297 | } |
| 298 | if (mMediaPlayerClick.get() != NULL) { |
| 299 | mMediaPlayerClick->disconnect(); |
| 300 | mMediaPlayerClick.clear(); |
| 301 | } |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 302 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 303 | // make sure we tear down the hardware |
| 304 | mClientPid = IPCThreadState::self()->getCallingPid(); |
| 305 | disconnect(); |
| 306 | LOGD("Client X destructor"); |
| 307 | } |
| 308 | |
| 309 | void CameraService::Client::disconnect() |
| 310 | { |
| 311 | LOGD("Client (%p) E disconnect from (%d)", |
| 312 | getCameraClient()->asBinder().get(), |
| 313 | IPCThreadState::self()->getCallingPid()); |
| 314 | Mutex::Autolock lock(mLock); |
| 315 | if (mClientPid <= 0) { |
| 316 | LOGV("camera is unlocked, don't tear down hardware"); |
| 317 | return; |
| 318 | } |
| 319 | if (checkPid() != NO_ERROR) { |
| 320 | LOGV("Different client - don't disconnect"); |
| 321 | return; |
| 322 | } |
| 323 | |
| 324 | mCameraService->removeClient(mCameraClient); |
| 325 | if (mHardware != 0) { |
| 326 | LOGV("hardware teardown"); |
| 327 | // Before destroying mHardware, we must make sure it's in the |
| 328 | // idle state. |
| 329 | mHardware->stopPreview(); |
| 330 | // Cancel all picture callbacks. |
| 331 | mHardware->cancelPicture(true, true, true); |
| 332 | // Release the hardware resources. |
| 333 | mHardware->release(); |
| 334 | } |
| 335 | mHardware.clear(); |
| 336 | LOGD("Client X disconnect"); |
| 337 | } |
| 338 | |
| 339 | // pass the buffered ISurface to the camera service |
| 340 | status_t CameraService::Client::setPreviewDisplay(const sp<ISurface>& surface) |
| 341 | { |
| 342 | LOGD("setPreviewDisplay(%p)", surface.get()); |
| 343 | Mutex::Autolock lock(mLock); |
| 344 | status_t result = checkPid(); |
| 345 | if (result != NO_ERROR) return result; |
| 346 | Mutex::Autolock surfaceLock(mSurfaceLock); |
| 347 | // asBinder() is safe on NULL (returns NULL) |
| 348 | if (surface->asBinder() != mSurface->asBinder()) { |
| 349 | if (mSurface != 0 && !mUseOverlay) { |
| 350 | LOGD("clearing old preview surface %p", mSurface.get()); |
| 351 | mSurface->unregisterBuffers(); |
| 352 | } |
| 353 | mSurface = surface; |
| 354 | } |
| 355 | return NO_ERROR; |
| 356 | } |
| 357 | |
| 358 | // set the preview callback flag to affect how the received frames from |
| 359 | // preview are handled. |
| 360 | void CameraService::Client::setPreviewCallbackFlag(int callback_flag) |
| 361 | { |
| 362 | LOGV("setPreviewCallbackFlag"); |
| 363 | Mutex::Autolock lock(mLock); |
| 364 | if (checkPid() != NO_ERROR) return; |
| 365 | mPreviewCallbackFlag = callback_flag; |
| 366 | } |
| 367 | |
| 368 | // start preview mode, must call setPreviewDisplay first |
| 369 | status_t CameraService::Client::startCameraMode(camera_mode mode) |
| 370 | { |
| 371 | LOGD("startCameraMode(%d)", mode); |
| 372 | |
| 373 | /* we cannot call into mHardware with mLock held because |
| 374 | * mHardware has callbacks onto us which acquire this lock |
| 375 | */ |
| 376 | |
| 377 | Mutex::Autolock lock(mLock); |
| 378 | status_t result = checkPid(); |
| 379 | if (result != NO_ERROR) return result; |
| 380 | |
| 381 | if (mHardware == 0) { |
| 382 | LOGE("mHardware is NULL, returning."); |
| 383 | return INVALID_OPERATION; |
| 384 | } |
| 385 | |
| 386 | if (mSurface == 0) { |
| 387 | LOGE("setPreviewDisplay must be called before startCameraMode!"); |
| 388 | return INVALID_OPERATION; |
| 389 | } |
| 390 | |
| 391 | switch(mode) { |
| 392 | case CAMERA_RECORDING_MODE: |
| 393 | return startRecordingMode(); |
| 394 | |
| 395 | default: // CAMERA_PREVIEW_MODE |
| 396 | return startPreviewMode(); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | status_t CameraService::Client::startRecordingMode() |
| 401 | { |
| 402 | LOGV("startRecordingMode"); |
| 403 | |
| 404 | status_t ret = UNKNOWN_ERROR; |
| 405 | |
| 406 | // if preview has not been started, start preview first |
| 407 | if (!mHardware->previewEnabled()) { |
| 408 | ret = startPreviewMode(); |
| 409 | if (ret != NO_ERROR) { |
| 410 | return ret; |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | // if recording has been enabled, nothing needs to be done |
| 415 | if (mHardware->recordingEnabled()) { |
| 416 | return NO_ERROR; |
| 417 | } |
| 418 | |
| 419 | // start recording mode |
| 420 | ret = mHardware->startRecording(recordingCallback, |
| 421 | mCameraService.get()); |
| 422 | if (ret != NO_ERROR) { |
| 423 | LOGE("mHardware->startRecording() failed with status %d", ret); |
| 424 | } |
| 425 | return ret; |
| 426 | } |
| 427 | |
| 428 | status_t CameraService::Client::startPreviewMode() |
| 429 | { |
| 430 | LOGV("startPreviewMode"); |
| 431 | |
| 432 | // if preview has been enabled, nothing needs to be done |
| 433 | if (mHardware->previewEnabled()) { |
| 434 | return NO_ERROR; |
| 435 | } |
| 436 | |
| 437 | // start preview mode |
| 438 | #if DEBUG_DUMP_PREVIEW_FRAME_TO_FILE |
| 439 | debug_frame_cnt = 0; |
| 440 | #endif |
| 441 | status_t ret = UNKNOWN_ERROR; |
| 442 | int w, h; |
| 443 | CameraParameters params(mHardware->getParameters()); |
| 444 | params.getPreviewSize(&w, &h); |
| 445 | |
| 446 | if (mUseOverlay) { |
| 447 | const char *format = params.getPreviewFormat(); |
| 448 | int fmt; |
| 449 | LOGD("Use Overlays"); |
| 450 | if (!strcmp(format, "yuv422i")) |
| 451 | fmt = OVERLAY_FORMAT_YCbCr_422_I; |
| 452 | else if (!strcmp(format, "rgb565")) |
| 453 | fmt = OVERLAY_FORMAT_RGB_565; |
| 454 | else { |
| 455 | LOGE("Invalid preview format for overlays"); |
| 456 | return -EINVAL; |
| 457 | } |
| 458 | sp<OverlayRef> ref = mSurface->createOverlay(w, h, fmt); |
| 459 | ret = mHardware->setOverlay(new Overlay(ref)); |
| 460 | if (ret != NO_ERROR) { |
| 461 | LOGE("mHardware->setOverlay() failed with status %d\n", ret); |
| 462 | return ret; |
| 463 | } |
| 464 | ret = mHardware->startPreview(NULL, mCameraService.get()); |
| 465 | if (ret != NO_ERROR) |
| 466 | LOGE("mHardware->startPreview() failed with status %d\n", ret); |
| 467 | |
| 468 | } else { |
| 469 | ret = mHardware->startPreview(previewCallback, |
| 470 | mCameraService.get()); |
| 471 | if (ret == NO_ERROR) { |
| 472 | |
| 473 | mSurface->unregisterBuffers(); |
| 474 | |
| 475 | uint32_t transform = 0; |
| 476 | if (params.getOrientation() == |
| 477 | CameraParameters::CAMERA_ORIENTATION_PORTRAIT) { |
| 478 | LOGV("portrait mode"); |
| 479 | transform = ISurface::BufferHeap::ROT_90; |
| 480 | } |
| 481 | ISurface::BufferHeap buffers(w, h, w, h, |
| 482 | PIXEL_FORMAT_YCbCr_420_SP, |
| 483 | transform, |
| 484 | 0, |
| 485 | mHardware->getPreviewHeap()); |
| 486 | |
| 487 | mSurface->registerBuffers(buffers); |
| 488 | } else { |
| 489 | LOGE("mHardware->startPreview() failed with status %d", ret); |
| 490 | } |
| 491 | } |
| 492 | return ret; |
| 493 | } |
| 494 | |
| 495 | status_t CameraService::Client::startPreview() |
| 496 | { |
| 497 | return startCameraMode(CAMERA_PREVIEW_MODE); |
| 498 | } |
| 499 | |
| 500 | status_t CameraService::Client::startRecording() |
| 501 | { |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 502 | if (mMediaPlayerBeep.get() != NULL) { |
Andreas Huber | 4873375 | 2009-03-24 18:14:23 -0700 | [diff] [blame] | 503 | mMediaPlayerBeep->seekTo(0); |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 504 | mMediaPlayerBeep->start(); |
| 505 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 506 | return startCameraMode(CAMERA_RECORDING_MODE); |
| 507 | } |
| 508 | |
| 509 | // stop preview mode |
| 510 | void CameraService::Client::stopPreview() |
| 511 | { |
| 512 | LOGD("stopPreview()"); |
| 513 | |
| 514 | Mutex::Autolock lock(mLock); |
| 515 | if (checkPid() != NO_ERROR) return; |
| 516 | |
| 517 | if (mHardware == 0) { |
| 518 | LOGE("mHardware is NULL, returning."); |
| 519 | return; |
| 520 | } |
| 521 | |
| 522 | mHardware->stopPreview(); |
| 523 | LOGD("stopPreview(), hardware stopped OK"); |
| 524 | |
| 525 | if (mSurface != 0 && !mUseOverlay) { |
| 526 | mSurface->unregisterBuffers(); |
| 527 | } |
| 528 | mPreviewBuffer.clear(); |
| 529 | } |
| 530 | |
| 531 | // stop recording mode |
| 532 | void CameraService::Client::stopRecording() |
| 533 | { |
| 534 | LOGV("stopRecording()"); |
| 535 | |
| 536 | Mutex::Autolock lock(mLock); |
| 537 | if (checkPid() != NO_ERROR) return; |
| 538 | |
| 539 | if (mHardware == 0) { |
| 540 | LOGE("mHardware is NULL, returning."); |
| 541 | return; |
| 542 | } |
| 543 | |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 544 | if (mMediaPlayerBeep.get() != NULL) { |
Andreas Huber | 4873375 | 2009-03-24 18:14:23 -0700 | [diff] [blame] | 545 | mMediaPlayerBeep->seekTo(0); |
The Android Open Source Project | c2ad241 | 2009-03-19 23:08:54 -0700 | [diff] [blame] | 546 | mMediaPlayerBeep->start(); |
| 547 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 548 | mHardware->stopRecording(); |
| 549 | LOGV("stopRecording(), hardware stopped OK"); |
| 550 | mPreviewBuffer.clear(); |
| 551 | } |
| 552 | |
| 553 | // release a recording frame |
| 554 | void CameraService::Client::releaseRecordingFrame(const sp<IMemory>& mem) |
| 555 | { |
| 556 | LOGV("releaseRecordingFrame()"); |
| 557 | |
| 558 | Mutex::Autolock lock(mLock); |
| 559 | if (checkPid() != NO_ERROR) return; |
| 560 | |
| 561 | if (mHardware == 0) { |
| 562 | LOGE("mHardware is NULL, returning."); |
| 563 | return; |
| 564 | } |
| 565 | |
| 566 | mHardware->releaseRecordingFrame(mem); |
| 567 | } |
| 568 | |
| 569 | bool CameraService::Client::previewEnabled() |
| 570 | { |
| 571 | Mutex::Autolock lock(mLock); |
| 572 | if (mHardware == 0) return false; |
| 573 | return mHardware->previewEnabled(); |
| 574 | } |
| 575 | |
| 576 | bool CameraService::Client::recordingEnabled() |
| 577 | { |
| 578 | Mutex::Autolock lock(mLock); |
| 579 | if (mHardware == 0) return false; |
| 580 | return mHardware->recordingEnabled(); |
| 581 | } |
| 582 | |
| 583 | // Safely retrieves a strong pointer to the client during a hardware callback. |
| 584 | sp<CameraService::Client> CameraService::Client::getClientFromCookie(void* user) |
| 585 | { |
| 586 | sp<Client> client = 0; |
| 587 | CameraService *service = static_cast<CameraService*>(user); |
| 588 | if (service != NULL) { |
| 589 | Mutex::Autolock ourLock(service->mLock); |
| 590 | if (service->mClient != 0) { |
| 591 | client = service->mClient.promote(); |
| 592 | if (client == 0) { |
| 593 | LOGE("getClientFromCookie: client appears to have died"); |
| 594 | service->mClient.clear(); |
| 595 | } |
| 596 | } else { |
| 597 | LOGE("getClientFromCookie: got callback but client was NULL"); |
| 598 | } |
| 599 | } |
| 600 | return client; |
| 601 | } |
| 602 | |
| 603 | |
| 604 | #if DEBUG_DUMP_JPEG_SNAPSHOT_TO_FILE || \ |
| 605 | DEBUG_DUMP_YUV_SNAPSHOT_TO_FILE || \ |
| 606 | DEBUG_DUMP_PREVIEW_FRAME_TO_FILE |
| 607 | static void dump_to_file(const char *fname, |
| 608 | uint8_t *buf, uint32_t size) |
| 609 | { |
| 610 | int nw, cnt = 0; |
| 611 | uint32_t written = 0; |
| 612 | |
| 613 | LOGD("opening file [%s]\n", fname); |
| 614 | int fd = open(fname, O_RDWR | O_CREAT); |
| 615 | if (fd < 0) { |
| 616 | LOGE("failed to create file [%s]: %s", fname, strerror(errno)); |
| 617 | return; |
| 618 | } |
| 619 | |
| 620 | LOGD("writing %d bytes to file [%s]\n", size, fname); |
| 621 | while (written < size) { |
| 622 | nw = ::write(fd, |
| 623 | buf + written, |
| 624 | size - written); |
| 625 | if (nw < 0) { |
| 626 | LOGE("failed to write to file [%s]: %s", |
| 627 | fname, strerror(errno)); |
| 628 | break; |
| 629 | } |
| 630 | written += nw; |
| 631 | cnt++; |
| 632 | } |
| 633 | LOGD("done writing %d bytes to file [%s] in %d passes\n", |
| 634 | size, fname, cnt); |
| 635 | ::close(fd); |
| 636 | } |
| 637 | #endif |
| 638 | |
| 639 | // preview callback - frame buffer update |
| 640 | void CameraService::Client::previewCallback(const sp<IMemory>& mem, void* user) |
| 641 | { |
| 642 | LOGV("previewCallback()"); |
| 643 | sp<Client> client = getClientFromCookie(user); |
| 644 | if (client == 0) { |
| 645 | return; |
| 646 | } |
| 647 | |
| 648 | #if DEBUG_HEAP_LEAKS && 0 // debugging |
| 649 | if (gWeakHeap == NULL) { |
| 650 | ssize_t offset; |
| 651 | size_t size; |
| 652 | sp<IMemoryHeap> heap = mem->getMemory(&offset, &size); |
| 653 | if (gWeakHeap != heap) { |
| 654 | LOGD("SETTING PREVIEW HEAP"); |
| 655 | heap->trackMe(true, true); |
| 656 | gWeakHeap = heap; |
| 657 | } |
| 658 | } |
| 659 | #endif |
| 660 | |
| 661 | #if DEBUG_DUMP_PREVIEW_FRAME_TO_FILE |
| 662 | { |
| 663 | if (debug_frame_cnt++ == DEBUG_DUMP_PREVIEW_FRAME_TO_FILE) { |
| 664 | ssize_t offset; |
| 665 | size_t size; |
| 666 | sp<IMemoryHeap> heap = mem->getMemory(&offset, &size); |
| 667 | dump_to_file("/data/preview.yuv", |
| 668 | (uint8_t *)heap->base() + offset, size); |
| 669 | } |
| 670 | } |
| 671 | #endif |
| 672 | |
| 673 | // The strong pointer guarantees the client will exist, but no lock is held. |
| 674 | client->postPreviewFrame(mem); |
| 675 | |
| 676 | #if DEBUG_CLIENT_REFERENCES |
| 677 | //**** if the client's refcount is 1, then we are about to destroy it here, |
| 678 | // which is bad--print all refcounts. |
| 679 | if (client->getStrongCount() == 1) { |
| 680 | LOGE("++++++++++++++++ (PREVIEW) THIS WILL CAUSE A LOCKUP!"); |
| 681 | client->printRefs(); |
| 682 | } |
| 683 | #endif |
| 684 | } |
| 685 | |
| 686 | // recording callback |
| 687 | void CameraService::Client::recordingCallback(const sp<IMemory>& mem, void* user) |
| 688 | { |
| 689 | LOGV("recordingCallback"); |
| 690 | sp<Client> client = getClientFromCookie(user); |
| 691 | if (client == 0) { |
| 692 | return; |
| 693 | } |
| 694 | // The strong pointer guarantees the client will exist, but no lock is held. |
| 695 | client->postRecordingFrame(mem); |
| 696 | } |
| 697 | |
| 698 | // take a picture - image is returned in callback |
| 699 | status_t CameraService::Client::autoFocus() |
| 700 | { |
| 701 | LOGV("autoFocus"); |
| 702 | |
| 703 | Mutex::Autolock lock(mLock); |
| 704 | status_t result = checkPid(); |
| 705 | if (result != NO_ERROR) return result; |
| 706 | |
| 707 | if (mHardware == 0) { |
| 708 | LOGE("mHardware is NULL, returning."); |
| 709 | return INVALID_OPERATION; |
| 710 | } |
| 711 | |
| 712 | return mHardware->autoFocus(autoFocusCallback, |
| 713 | mCameraService.get()); |
| 714 | } |
| 715 | |
| 716 | // take a picture - image is returned in callback |
| 717 | status_t CameraService::Client::takePicture() |
| 718 | { |
| 719 | LOGD("takePicture"); |
| 720 | |
| 721 | Mutex::Autolock lock(mLock); |
| 722 | status_t result = checkPid(); |
| 723 | if (result != NO_ERROR) return result; |
| 724 | |
| 725 | if (mHardware == 0) { |
| 726 | LOGE("mHardware is NULL, returning."); |
| 727 | return INVALID_OPERATION; |
| 728 | } |
| 729 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 730 | return mHardware->takePicture(shutterCallback, |
| 731 | yuvPictureCallback, |
| 732 | jpegPictureCallback, |
| 733 | mCameraService.get()); |
| 734 | } |
| 735 | |
| 736 | // picture callback - snapshot taken |
| 737 | void CameraService::Client::shutterCallback(void *user) |
| 738 | { |
| 739 | sp<Client> client = getClientFromCookie(user); |
| 740 | if (client == 0) { |
| 741 | return; |
| 742 | } |
| 743 | |
Wu-cheng Li | a34bb20 | 2009-03-24 18:01:34 -0700 | [diff] [blame] | 744 | // Play shutter sound. |
| 745 | if (client->mMediaPlayerClick.get() != NULL) { |
Andreas Huber | 4873375 | 2009-03-24 18:14:23 -0700 | [diff] [blame] | 746 | client->mMediaPlayerClick->seekTo(0); |
Wu-cheng Li | a34bb20 | 2009-03-24 18:01:34 -0700 | [diff] [blame] | 747 | client->mMediaPlayerClick->start(); |
| 748 | } |
| 749 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 750 | // Screen goes black after the buffer is unregistered. |
| 751 | if (client->mSurface != 0 && !client->mUseOverlay) { |
| 752 | client->mSurface->unregisterBuffers(); |
| 753 | } |
| 754 | |
| 755 | client->postShutter(); |
| 756 | |
| 757 | // It takes some time before yuvPicture callback to be called. |
| 758 | // Register the buffer for raw image here to reduce latency. |
| 759 | if (client->mSurface != 0 && !client->mUseOverlay) { |
| 760 | int w, h; |
| 761 | CameraParameters params(client->mHardware->getParameters()); |
| 762 | params.getPictureSize(&w, &h); |
| 763 | uint32_t transform = 0; |
| 764 | if (params.getOrientation() == CameraParameters::CAMERA_ORIENTATION_PORTRAIT) { |
| 765 | LOGV("portrait mode"); |
| 766 | transform = ISurface::BufferHeap::ROT_90; |
| 767 | } |
| 768 | ISurface::BufferHeap buffers(w, h, w, h, |
| 769 | PIXEL_FORMAT_YCbCr_420_SP, transform, 0, client->mHardware->getRawHeap()); |
| 770 | |
| 771 | client->mSurface->registerBuffers(buffers); |
| 772 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | // picture callback - raw image ready |
| 776 | void CameraService::Client::yuvPictureCallback(const sp<IMemory>& mem, |
| 777 | void *user) |
| 778 | { |
| 779 | sp<Client> client = getClientFromCookie(user); |
| 780 | if (client == 0) { |
| 781 | return; |
| 782 | } |
| 783 | if (mem == NULL) { |
| 784 | client->postRaw(NULL); |
| 785 | client->postError(UNKNOWN_ERROR); |
| 786 | return; |
| 787 | } |
| 788 | |
| 789 | ssize_t offset; |
| 790 | size_t size; |
| 791 | sp<IMemoryHeap> heap = mem->getMemory(&offset, &size); |
| 792 | #if DEBUG_HEAP_LEAKS && 0 // debugging |
| 793 | gWeakHeap = heap; // debugging |
| 794 | #endif |
| 795 | |
| 796 | //LOGV("yuvPictureCallback(%d, %d, %p)", offset, size, user); |
| 797 | #if DEBUG_DUMP_YUV_SNAPSHOT_TO_FILE // for testing pursposes only |
| 798 | dump_to_file("/data/photo.yuv", |
| 799 | (uint8_t *)heap->base() + offset, size); |
| 800 | #endif |
| 801 | |
| 802 | // Put the YUV version of the snapshot in the preview display. |
| 803 | if (client->mSurface != 0 && !client->mUseOverlay) { |
| 804 | client->mSurface->postBuffer(offset); |
| 805 | } |
| 806 | |
| 807 | client->postRaw(mem); |
| 808 | |
| 809 | #if DEBUG_CLIENT_REFERENCES |
| 810 | //**** if the client's refcount is 1, then we are about to destroy it here, |
| 811 | // which is bad--print all refcounts. |
| 812 | if (client->getStrongCount() == 1) { |
| 813 | LOGE("++++++++++++++++ (RAW) THIS WILL CAUSE A LOCKUP!"); |
| 814 | client->printRefs(); |
| 815 | } |
| 816 | #endif |
| 817 | } |
| 818 | |
| 819 | // picture callback - jpeg ready |
| 820 | void CameraService::Client::jpegPictureCallback(const sp<IMemory>& mem, void *user) |
| 821 | { |
| 822 | sp<Client> client = getClientFromCookie(user); |
| 823 | if (client == 0) { |
| 824 | return; |
| 825 | } |
| 826 | if (mem == NULL) { |
| 827 | client->postJpeg(NULL); |
| 828 | client->postError(UNKNOWN_ERROR); |
| 829 | return; |
| 830 | } |
| 831 | |
| 832 | /** We absolutely CANNOT call into user code with a lock held **/ |
| 833 | |
| 834 | #if DEBUG_DUMP_JPEG_SNAPSHOT_TO_FILE // for testing pursposes only |
| 835 | { |
| 836 | ssize_t offset; |
| 837 | size_t size; |
| 838 | sp<IMemoryHeap> heap = mem->getMemory(&offset, &size); |
| 839 | dump_to_file("/data/photo.jpg", |
| 840 | (uint8_t *)heap->base() + offset, size); |
| 841 | } |
| 842 | #endif |
| 843 | |
| 844 | client->postJpeg(mem); |
| 845 | |
| 846 | #if DEBUG_CLIENT_REFERENCES |
| 847 | //**** if the client's refcount is 1, then we are about to destroy it here, |
| 848 | // which is bad--print all refcounts. |
| 849 | if (client->getStrongCount() == 1) { |
| 850 | LOGE("++++++++++++++++ (JPEG) THIS WILL CAUSE A LOCKUP!"); |
| 851 | client->printRefs(); |
| 852 | } |
| 853 | #endif |
| 854 | } |
| 855 | |
| 856 | void CameraService::Client::autoFocusCallback(bool focused, void *user) |
| 857 | { |
| 858 | LOGV("autoFocusCallback"); |
| 859 | |
| 860 | sp<Client> client = getClientFromCookie(user); |
| 861 | if (client == 0) { |
| 862 | return; |
| 863 | } |
| 864 | |
| 865 | client->postAutoFocus(focused); |
| 866 | |
| 867 | #if DEBUG_CLIENT_REFERENCES |
| 868 | if (client->getStrongCount() == 1) { |
| 869 | LOGE("++++++++++++++++ (AUTOFOCUS) THIS WILL CAUSE A LOCKUP!"); |
| 870 | client->printRefs(); |
| 871 | } |
| 872 | #endif |
| 873 | } |
| 874 | |
| 875 | // set preview/capture parameters - key/value pairs |
| 876 | status_t CameraService::Client::setParameters(const String8& params) |
| 877 | { |
| 878 | LOGD("setParameters(%s)", params.string()); |
| 879 | |
| 880 | Mutex::Autolock lock(mLock); |
| 881 | status_t result = checkPid(); |
| 882 | if (result != NO_ERROR) return result; |
| 883 | |
| 884 | if (mHardware == 0) { |
| 885 | LOGE("mHardware is NULL, returning."); |
| 886 | return INVALID_OPERATION; |
| 887 | } |
| 888 | |
| 889 | CameraParameters p(params); |
| 890 | mHardware->setParameters(p); |
| 891 | return NO_ERROR; |
| 892 | } |
| 893 | |
| 894 | // get preview/capture parameters - key/value pairs |
| 895 | String8 CameraService::Client::getParameters() const |
| 896 | { |
| 897 | LOGD("getParameters"); |
| 898 | |
| 899 | Mutex::Autolock lock(mLock); |
| 900 | |
| 901 | if (mHardware == 0) { |
| 902 | LOGE("mHardware is NULL, returning."); |
| 903 | return String8(); |
| 904 | } |
| 905 | |
| 906 | return mHardware->getParameters().flatten(); |
| 907 | } |
| 908 | |
| 909 | void CameraService::Client::postAutoFocus(bool focused) |
| 910 | { |
| 911 | LOGV("postAutoFocus"); |
| 912 | mCameraClient->autoFocusCallback(focused); |
| 913 | } |
| 914 | |
| 915 | void CameraService::Client::postShutter() |
| 916 | { |
| 917 | mCameraClient->shutterCallback(); |
| 918 | } |
| 919 | |
| 920 | void CameraService::Client::postRaw(const sp<IMemory>& mem) |
| 921 | { |
| 922 | LOGD("postRaw"); |
| 923 | mCameraClient->rawCallback(mem); |
| 924 | } |
| 925 | |
| 926 | void CameraService::Client::postJpeg(const sp<IMemory>& mem) |
| 927 | { |
| 928 | LOGD("postJpeg"); |
| 929 | mCameraClient->jpegCallback(mem); |
| 930 | } |
| 931 | |
| 932 | void CameraService::Client::copyFrameAndPostCopiedFrame(sp<IMemoryHeap> heap, size_t offset, size_t size) |
| 933 | { |
| 934 | LOGV("copyFrameAndPostCopiedFrame"); |
| 935 | // It is necessary to copy out of pmem before sending this to |
| 936 | // the callback. For efficiency, reuse the same MemoryHeapBase |
| 937 | // provided it's big enough. Don't allocate the memory or |
| 938 | // perform the copy if there's no callback. |
| 939 | if (mPreviewBuffer == 0) { |
| 940 | mPreviewBuffer = new MemoryHeapBase(size, 0, NULL); |
| 941 | } else if (size > mPreviewBuffer->virtualSize()) { |
| 942 | mPreviewBuffer.clear(); |
| 943 | mPreviewBuffer = new MemoryHeapBase(size, 0, NULL); |
| 944 | if (mPreviewBuffer == 0) { |
| 945 | LOGE("failed to allocate space for preview buffer"); |
| 946 | return; |
| 947 | } |
| 948 | } |
| 949 | memcpy(mPreviewBuffer->base(), |
| 950 | (uint8_t *)heap->base() + offset, size); |
| 951 | |
| 952 | sp<MemoryBase> frame = new MemoryBase(mPreviewBuffer, 0, size); |
| 953 | if (frame == 0) { |
| 954 | LOGE("failed to allocate space for frame callback"); |
| 955 | return; |
| 956 | } |
| 957 | mCameraClient->previewCallback(frame); |
| 958 | } |
| 959 | |
| 960 | void CameraService::Client::postRecordingFrame(const sp<IMemory>& frame) |
| 961 | { |
| 962 | LOGV("postRecordingFrame"); |
| 963 | if (frame == 0) { |
| 964 | LOGW("frame is a null pointer"); |
| 965 | return; |
| 966 | } |
| 967 | mCameraClient->recordingCallback(frame); |
| 968 | } |
| 969 | |
| 970 | void CameraService::Client::postPreviewFrame(const sp<IMemory>& mem) |
| 971 | { |
| 972 | LOGV("postPreviewFrame"); |
| 973 | if (mem == 0) { |
| 974 | LOGW("mem is a null pointer"); |
| 975 | return; |
| 976 | } |
| 977 | |
| 978 | ssize_t offset; |
| 979 | size_t size; |
| 980 | sp<IMemoryHeap> heap = mem->getMemory(&offset, &size); |
| 981 | { |
| 982 | Mutex::Autolock surfaceLock(mSurfaceLock); |
| 983 | if (mSurface != NULL) { |
| 984 | mSurface->postBuffer(offset); |
| 985 | } |
| 986 | } |
| 987 | |
| 988 | // Is the callback enabled or not? |
| 989 | if (!(mPreviewCallbackFlag & FRAME_CALLBACK_FLAG_ENABLE_MASK)) { |
| 990 | // If the enable bit is off, the copy-out and one-shot bits are ignored |
| 991 | LOGV("frame callback is diabled"); |
| 992 | return; |
| 993 | } |
| 994 | |
| 995 | // Is the received frame copied out or not? |
| 996 | if (mPreviewCallbackFlag & FRAME_CALLBACK_FLAG_COPY_OUT_MASK) { |
| 997 | LOGV("frame is copied out"); |
| 998 | copyFrameAndPostCopiedFrame(heap, offset, size); |
| 999 | } else { |
| 1000 | LOGV("frame is directly sent out without copying"); |
| 1001 | mCameraClient->previewCallback(mem); |
| 1002 | } |
| 1003 | |
| 1004 | // Is this is one-shot only? |
| 1005 | if (mPreviewCallbackFlag & FRAME_CALLBACK_FLAG_ONE_SHOT_MASK) { |
| 1006 | LOGV("One-shot only, thus clear the bits and disable frame callback"); |
| 1007 | mPreviewCallbackFlag &= ~(FRAME_CALLBACK_FLAG_ONE_SHOT_MASK | |
| 1008 | FRAME_CALLBACK_FLAG_COPY_OUT_MASK | |
| 1009 | FRAME_CALLBACK_FLAG_ENABLE_MASK); |
| 1010 | } |
| 1011 | } |
| 1012 | |
| 1013 | void CameraService::Client::postError(status_t error) |
| 1014 | { |
| 1015 | mCameraClient->errorCallback(error); |
| 1016 | } |
| 1017 | |
| 1018 | status_t CameraService::dump(int fd, const Vector<String16>& args) |
| 1019 | { |
| 1020 | const size_t SIZE = 256; |
| 1021 | char buffer[SIZE]; |
| 1022 | String8 result; |
| 1023 | if (checkCallingPermission(String16("android.permission.DUMP")) == false) { |
| 1024 | snprintf(buffer, SIZE, "Permission Denial: " |
| 1025 | "can't dump CameraService from pid=%d, uid=%d\n", |
| 1026 | IPCThreadState::self()->getCallingPid(), |
| 1027 | IPCThreadState::self()->getCallingUid()); |
| 1028 | result.append(buffer); |
| 1029 | write(fd, result.string(), result.size()); |
| 1030 | } else { |
| 1031 | AutoMutex lock(&mLock); |
| 1032 | if (mClient != 0) { |
| 1033 | sp<Client> currentClient = mClient.promote(); |
| 1034 | sprintf(buffer, "Client (%p) PID: %d\n", |
| 1035 | currentClient->getCameraClient()->asBinder().get(), |
| 1036 | currentClient->mClientPid); |
| 1037 | result.append(buffer); |
| 1038 | write(fd, result.string(), result.size()); |
| 1039 | currentClient->mHardware->dump(fd, args); |
| 1040 | } else { |
| 1041 | result.append("No camera client yet.\n"); |
| 1042 | write(fd, result.string(), result.size()); |
| 1043 | } |
| 1044 | } |
| 1045 | return NO_ERROR; |
| 1046 | } |
| 1047 | |
| 1048 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1049 | |
| 1050 | #define CHECK_INTERFACE(interface, data, reply) \ |
| 1051 | do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \ |
| 1052 | LOGW("Call incorrectly routed to " #interface); \ |
| 1053 | return PERMISSION_DENIED; \ |
| 1054 | } } while (0) |
| 1055 | |
| 1056 | status_t CameraService::onTransact( |
| 1057 | uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| 1058 | { |
| 1059 | // permission checks... |
| 1060 | switch (code) { |
| 1061 | case BnCameraService::CONNECT: |
| 1062 | IPCThreadState* ipc = IPCThreadState::self(); |
| 1063 | const int pid = ipc->getCallingPid(); |
| 1064 | const int self_pid = getpid(); |
| 1065 | if (pid != self_pid) { |
| 1066 | // we're called from a different process, do the real check |
| 1067 | if (!checkCallingPermission( |
| 1068 | String16("android.permission.CAMERA"))) |
| 1069 | { |
| 1070 | const int uid = ipc->getCallingUid(); |
| 1071 | LOGE("Permission Denial: " |
| 1072 | "can't use the camera pid=%d, uid=%d", pid, uid); |
| 1073 | return PERMISSION_DENIED; |
| 1074 | } |
| 1075 | } |
| 1076 | break; |
| 1077 | } |
| 1078 | |
| 1079 | status_t err = BnCameraService::onTransact(code, data, reply, flags); |
| 1080 | |
Dave Sparks | 7b7225c | 2009-05-21 09:18:18 -0700 | [diff] [blame^] | 1081 | #if DEBUG_HEAP_LEAKS |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1082 | LOGD("+++ onTransact err %d code %d", err, code); |
| 1083 | |
| 1084 | if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { |
| 1085 | // the 'service' command interrogates this binder for its name, and then supplies it |
| 1086 | // even for the debugging commands. that means we need to check for it here, using |
| 1087 | // ISurfaceComposer (since we delegated the INTERFACE_TRANSACTION handling to |
| 1088 | // BnSurfaceComposer before falling through to this code). |
| 1089 | |
| 1090 | LOGD("+++ onTransact code %d", code); |
| 1091 | |
| 1092 | CHECK_INTERFACE(ICameraService, data, reply); |
| 1093 | |
| 1094 | switch(code) { |
| 1095 | case 1000: |
| 1096 | { |
| 1097 | if (gWeakHeap != 0) { |
| 1098 | sp<IMemoryHeap> h = gWeakHeap.promote(); |
| 1099 | IMemoryHeap *p = gWeakHeap.unsafe_get(); |
| 1100 | LOGD("CHECKING WEAK REFERENCE %p (%p)", h.get(), p); |
| 1101 | if (h != 0) |
| 1102 | h->printRefs(); |
| 1103 | bool attempt_to_delete = data.readInt32() == 1; |
| 1104 | if (attempt_to_delete) { |
| 1105 | // NOT SAFE! |
| 1106 | LOGD("DELETING WEAK REFERENCE %p (%p)", h.get(), p); |
| 1107 | if (p) delete p; |
| 1108 | } |
| 1109 | return NO_ERROR; |
| 1110 | } |
| 1111 | } |
| 1112 | break; |
| 1113 | default: |
| 1114 | break; |
| 1115 | } |
| 1116 | } |
Dave Sparks | 7b7225c | 2009-05-21 09:18:18 -0700 | [diff] [blame^] | 1117 | #endif // DEBUG_HEAP_LEAKS |
| 1118 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1119 | return err; |
| 1120 | } |
| 1121 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1122 | |
| 1123 | }; // namespace android |