keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA2_H |
| 18 | #define HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA2_H |
| 19 | |
| 20 | /* |
| 21 | * Contains declaration of a class EmulatedFakeCamera2 that encapsulates |
| 22 | * functionality of a fake camera that implements version 2 of the camera device |
| 23 | * interface. |
| 24 | */ |
| 25 | |
| 26 | #include "EmulatedCamera2.h" |
| 27 | #include "fake-pipeline2/Base.h" |
| 28 | #include "fake-pipeline2/Sensor.h" |
| 29 | #include "fake-pipeline2/JpegCompressor.h" |
| 30 | #include <utils/Condition.h> |
| 31 | #include <utils/KeyedVector.h> |
| 32 | #include <utils/String8.h> |
| 33 | #include <utils/String16.h> |
| 34 | |
| 35 | namespace android { |
| 36 | |
| 37 | /* Encapsulates functionality of an advanced fake camera. This camera contains |
| 38 | * a simple simulation of a scene, sensor, and image processing pipeline. |
| 39 | */ |
| 40 | class EmulatedFakeCamera2 : public EmulatedCamera2 { |
| 41 | public: |
| 42 | /* Constructs EmulatedFakeCamera instance. */ |
| 43 | EmulatedFakeCamera2(int cameraId, bool facingBack, struct hw_module_t* module); |
| 44 | |
| 45 | /* Destructs EmulatedFakeCamera instance. */ |
| 46 | ~EmulatedFakeCamera2(); |
| 47 | |
| 48 | /**************************************************************************** |
| 49 | * EmulatedCamera2 virtual overrides. |
| 50 | ***************************************************************************/ |
| 51 | |
| 52 | public: |
| 53 | /* Initializes EmulatedFakeCamera2 instance. */ |
| 54 | status_t Initialize(); |
| 55 | |
| 56 | /**************************************************************************** |
| 57 | * Camera Module API and generic hardware device API implementation |
| 58 | ***************************************************************************/ |
| 59 | public: |
| 60 | |
| 61 | virtual status_t connectCamera(hw_device_t** device); |
| 62 | |
Igor Murashkin | 4dc85ef | 2013-03-20 15:22:51 -0700 | [diff] [blame] | 63 | virtual status_t plugCamera(); |
| 64 | virtual status_t unplugCamera(); |
| 65 | virtual camera_device_status_t getHotplugStatus(); |
| 66 | |
keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 67 | virtual status_t closeCamera(); |
| 68 | |
| 69 | virtual status_t getCameraInfo(struct camera_info *info); |
| 70 | |
| 71 | /**************************************************************************** |
| 72 | * EmulatedCamera2 abstract API implementation. |
| 73 | ***************************************************************************/ |
| 74 | protected: |
| 75 | /** Request input queue */ |
| 76 | |
| 77 | virtual int requestQueueNotify(); |
| 78 | |
| 79 | /** Count of requests in flight */ |
| 80 | virtual int getInProgressCount(); |
| 81 | |
| 82 | /** Cancel all captures in flight */ |
| 83 | //virtual int flushCapturesInProgress(); |
| 84 | |
| 85 | /** Construct default request */ |
| 86 | virtual int constructDefaultRequest( |
| 87 | int request_template, |
| 88 | camera_metadata_t **request); |
| 89 | |
| 90 | virtual int allocateStream( |
| 91 | uint32_t width, |
| 92 | uint32_t height, |
| 93 | int format, |
| 94 | const camera2_stream_ops_t *stream_ops, |
| 95 | uint32_t *stream_id, |
| 96 | uint32_t *format_actual, |
| 97 | uint32_t *usage, |
| 98 | uint32_t *max_buffers); |
| 99 | |
| 100 | virtual int registerStreamBuffers( |
| 101 | uint32_t stream_id, |
| 102 | int num_buffers, |
| 103 | buffer_handle_t *buffers); |
| 104 | |
| 105 | virtual int releaseStream(uint32_t stream_id); |
| 106 | |
| 107 | // virtual int allocateReprocessStream( |
| 108 | // uint32_t width, |
| 109 | // uint32_t height, |
| 110 | // uint32_t format, |
| 111 | // const camera2_stream_ops_t *stream_ops, |
| 112 | // uint32_t *stream_id, |
| 113 | // uint32_t *format_actual, |
| 114 | // uint32_t *usage, |
| 115 | // uint32_t *max_buffers); |
| 116 | |
| 117 | virtual int allocateReprocessStreamFromStream( |
| 118 | uint32_t output_stream_id, |
| 119 | const camera2_stream_in_ops_t *stream_ops, |
| 120 | uint32_t *stream_id); |
| 121 | |
| 122 | virtual int releaseReprocessStream(uint32_t stream_id); |
| 123 | |
| 124 | virtual int triggerAction(uint32_t trigger_id, |
| 125 | int32_t ext1, |
| 126 | int32_t ext2); |
| 127 | |
keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 128 | /** Debug methods */ |
| 129 | |
| 130 | virtual int dump(int fd); |
| 131 | |
| 132 | public: |
| 133 | /**************************************************************************** |
| 134 | * Utility methods called by configure/readout threads and pipeline |
| 135 | ***************************************************************************/ |
| 136 | |
| 137 | // Get information about a given stream. Will lock mMutex |
| 138 | const Stream &getStreamInfo(uint32_t streamId); |
| 139 | const ReprocessStream &getReprocessStreamInfo(uint32_t streamId); |
| 140 | |
| 141 | // Notifies rest of camera subsystem of serious error |
| 142 | void signalError(); |
| 143 | |
| 144 | private: |
| 145 | /**************************************************************************** |
| 146 | * Utility methods |
| 147 | ***************************************************************************/ |
| 148 | /** Construct static camera metadata, two-pass */ |
| 149 | status_t constructStaticInfo( |
| 150 | camera_metadata_t **info, |
| 151 | bool sizeRequest) const; |
| 152 | |
| 153 | /** Two-pass implementation of constructDefaultRequest */ |
| 154 | status_t constructDefaultRequest( |
| 155 | int request_template, |
| 156 | camera_metadata_t **request, |
| 157 | bool sizeRequest) const; |
| 158 | /** Helper function for constructDefaultRequest */ |
| 159 | static status_t addOrSize( camera_metadata_t *request, |
| 160 | bool sizeRequest, |
| 161 | size_t *entryCount, |
| 162 | size_t *dataCount, |
| 163 | uint32_t tag, |
| 164 | const void *entry_data, |
| 165 | size_t entry_count); |
| 166 | |
| 167 | /** Determine if the stream id is listed in any currently-in-flight |
| 168 | * requests. Assumes mMutex is locked */ |
| 169 | bool isStreamInUse(uint32_t streamId); |
| 170 | |
| 171 | /** Determine if the reprocess stream id is listed in any |
| 172 | * currently-in-flight requests. Assumes mMutex is locked */ |
| 173 | bool isReprocessStreamInUse(uint32_t streamId); |
| 174 | |
| 175 | /**************************************************************************** |
| 176 | * Pipeline controller threads |
| 177 | ***************************************************************************/ |
| 178 | |
| 179 | class ConfigureThread: public Thread { |
| 180 | public: |
| 181 | ConfigureThread(EmulatedFakeCamera2 *parent); |
| 182 | ~ConfigureThread(); |
| 183 | |
| 184 | status_t waitUntilRunning(); |
| 185 | status_t newRequestAvailable(); |
| 186 | status_t readyToRun(); |
| 187 | |
| 188 | bool isStreamInUse(uint32_t id); |
| 189 | int getInProgressCount(); |
| 190 | private: |
| 191 | EmulatedFakeCamera2 *mParent; |
| 192 | static const nsecs_t kWaitPerLoop = 10000000L; // 10 ms |
| 193 | |
| 194 | bool mRunning; |
| 195 | bool threadLoop(); |
| 196 | |
| 197 | bool setupCapture(); |
| 198 | bool setupReprocess(); |
| 199 | |
| 200 | bool configureNextCapture(); |
| 201 | bool configureNextReprocess(); |
| 202 | |
| 203 | bool getBuffers(); |
| 204 | |
| 205 | Mutex mInputMutex; // Protects mActive, mRequestCount |
| 206 | Condition mInputSignal; |
| 207 | bool mActive; // Whether we're waiting for input requests or actively |
| 208 | // working on them |
| 209 | size_t mRequestCount; |
| 210 | |
| 211 | camera_metadata_t *mRequest; |
| 212 | |
| 213 | Mutex mInternalsMutex; // Lock before accessing below members. |
| 214 | bool mWaitingForReadout; |
| 215 | bool mNextNeedsJpeg; |
| 216 | bool mNextIsCapture; |
| 217 | int32_t mNextFrameNumber; |
| 218 | int64_t mNextExposureTime; |
| 219 | int64_t mNextFrameDuration; |
| 220 | int32_t mNextSensitivity; |
| 221 | Buffers *mNextBuffers; |
| 222 | }; |
| 223 | |
Eino-Ville Talvala | 57ac67a | 2013-04-12 10:13:16 -0700 | [diff] [blame] | 224 | class ReadoutThread: public Thread, private JpegCompressor::JpegListener { |
keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 225 | public: |
| 226 | ReadoutThread(EmulatedFakeCamera2 *parent); |
| 227 | ~ReadoutThread(); |
| 228 | |
| 229 | status_t readyToRun(); |
| 230 | |
| 231 | // Input |
| 232 | status_t waitUntilRunning(); |
| 233 | bool waitForReady(nsecs_t timeout); |
| 234 | void setNextOperation(bool isCapture, |
| 235 | camera_metadata_t *request, |
| 236 | Buffers *buffers); |
| 237 | bool isStreamInUse(uint32_t id); |
| 238 | int getInProgressCount(); |
| 239 | private: |
| 240 | EmulatedFakeCamera2 *mParent; |
| 241 | |
| 242 | bool mRunning; |
| 243 | bool threadLoop(); |
| 244 | |
| 245 | bool readyForNextCapture(); |
| 246 | status_t collectStatisticsMetadata(camera_metadata_t *frame); |
| 247 | |
| 248 | // Inputs |
| 249 | Mutex mInputMutex; // Protects mActive, mInFlightQueue, mRequestCount |
| 250 | Condition mInputSignal; |
| 251 | Condition mReadySignal; |
| 252 | |
| 253 | bool mActive; |
| 254 | |
| 255 | static const int kInFlightQueueSize = 4; |
| 256 | struct InFlightQueue { |
| 257 | bool isCapture; |
| 258 | camera_metadata_t *request; |
| 259 | Buffers *buffers; |
| 260 | } *mInFlightQueue; |
| 261 | |
| 262 | size_t mInFlightHead; |
| 263 | size_t mInFlightTail; |
| 264 | |
| 265 | size_t mRequestCount; |
| 266 | |
| 267 | // Internals |
| 268 | Mutex mInternalsMutex; |
| 269 | |
| 270 | bool mIsCapture; |
| 271 | camera_metadata_t *mRequest; |
| 272 | Buffers *mBuffers; |
| 273 | |
Eino-Ville Talvala | 57ac67a | 2013-04-12 10:13:16 -0700 | [diff] [blame] | 274 | // Jpeg completion listeners |
| 275 | void onJpegDone(const StreamBuffer &jpegBuffer, bool success); |
| 276 | void onJpegInputDone(const StreamBuffer &inputBuffer); |
| 277 | nsecs_t mJpegTimestamp; |
keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 278 | }; |
| 279 | |
| 280 | // 3A management thread (auto-exposure, focus, white balance) |
| 281 | class ControlThread: public Thread { |
| 282 | public: |
| 283 | ControlThread(EmulatedFakeCamera2 *parent); |
| 284 | ~ControlThread(); |
| 285 | |
| 286 | status_t readyToRun(); |
| 287 | |
| 288 | status_t waitUntilRunning(); |
| 289 | |
| 290 | // Interpret request's control parameters and override |
| 291 | // capture settings as needed |
| 292 | status_t processRequest(camera_metadata_t *request); |
| 293 | |
| 294 | status_t triggerAction(uint32_t msgType, |
| 295 | int32_t ext1, int32_t ext2); |
| 296 | private: |
| 297 | ControlThread(const ControlThread &t); |
| 298 | ControlThread& operator=(const ControlThread &t); |
| 299 | |
| 300 | // Constants controlling fake 3A behavior |
| 301 | static const nsecs_t kControlCycleDelay; |
| 302 | static const nsecs_t kMinAfDuration; |
| 303 | static const nsecs_t kMaxAfDuration; |
| 304 | static const float kAfSuccessRate; |
| 305 | static const float kContinuousAfStartRate; |
| 306 | |
| 307 | static const float kAeScanStartRate; |
| 308 | static const nsecs_t kMinAeDuration; |
| 309 | static const nsecs_t kMaxAeDuration; |
| 310 | static const nsecs_t kMinPrecaptureAeDuration; |
| 311 | static const nsecs_t kMaxPrecaptureAeDuration; |
| 312 | |
| 313 | static const nsecs_t kNormalExposureTime; |
| 314 | static const nsecs_t kExposureJump; |
| 315 | static const nsecs_t kMinExposureTime; |
| 316 | |
| 317 | EmulatedFakeCamera2 *mParent; |
| 318 | |
| 319 | bool mRunning; |
| 320 | bool threadLoop(); |
| 321 | |
| 322 | Mutex mInputMutex; // Protects input methods |
| 323 | Condition mInputSignal; |
| 324 | |
| 325 | // Trigger notifications |
| 326 | bool mStartAf; |
| 327 | bool mCancelAf; |
| 328 | bool mStartPrecapture; |
| 329 | |
| 330 | // Latest state for 3A request fields |
| 331 | uint8_t mControlMode; |
| 332 | |
| 333 | uint8_t mEffectMode; |
| 334 | uint8_t mSceneMode; |
| 335 | |
| 336 | uint8_t mAfMode; |
| 337 | bool mAfModeChange; |
| 338 | |
| 339 | uint8_t mAwbMode; |
| 340 | uint8_t mAeMode; |
| 341 | |
| 342 | // Latest trigger IDs |
| 343 | int32_t mAfTriggerId; |
| 344 | int32_t mPrecaptureTriggerId; |
| 345 | |
| 346 | // Current state for 3A algorithms |
| 347 | uint8_t mAfState; |
| 348 | uint8_t mAeState; |
| 349 | uint8_t mAwbState; |
| 350 | bool mAeLock; |
| 351 | |
| 352 | // Current control parameters |
| 353 | nsecs_t mExposureTime; |
| 354 | |
| 355 | // Private to threadLoop and its utility methods |
| 356 | |
| 357 | nsecs_t mAfScanDuration; |
| 358 | nsecs_t mAeScanDuration; |
| 359 | bool mLockAfterPassiveScan; |
| 360 | |
| 361 | // Utility methods for AF |
| 362 | int processAfTrigger(uint8_t afMode, uint8_t afState); |
| 363 | int maybeStartAfScan(uint8_t afMode, uint8_t afState); |
| 364 | int updateAfScan(uint8_t afMode, uint8_t afState, nsecs_t *maxSleep); |
| 365 | void updateAfState(uint8_t newState, int32_t triggerId); |
| 366 | |
| 367 | // Utility methods for precapture trigger |
| 368 | int processPrecaptureTrigger(uint8_t aeMode, uint8_t aeState); |
| 369 | int maybeStartAeScan(uint8_t aeMode, bool aeLock, uint8_t aeState); |
| 370 | int updateAeScan(uint8_t aeMode, bool aeLock, uint8_t aeState, |
| 371 | nsecs_t *maxSleep); |
| 372 | void updateAeState(uint8_t newState, int32_t triggerId); |
| 373 | }; |
| 374 | |
| 375 | /**************************************************************************** |
| 376 | * Static configuration information |
| 377 | ***************************************************************************/ |
| 378 | private: |
| 379 | static const uint32_t kMaxRawStreamCount = 1; |
| 380 | static const uint32_t kMaxProcessedStreamCount = 3; |
| 381 | static const uint32_t kMaxJpegStreamCount = 1; |
| 382 | static const uint32_t kMaxReprocessStreamCount = 2; |
| 383 | static const uint32_t kMaxBufferCount = 4; |
| 384 | static const uint32_t kAvailableFormats[]; |
| 385 | static const uint32_t kAvailableRawSizes[]; |
| 386 | static const uint64_t kAvailableRawMinDurations[]; |
| 387 | static const uint32_t kAvailableProcessedSizesBack[]; |
| 388 | static const uint32_t kAvailableProcessedSizesFront[]; |
| 389 | static const uint64_t kAvailableProcessedMinDurations[]; |
| 390 | static const uint32_t kAvailableJpegSizesBack[]; |
| 391 | static const uint32_t kAvailableJpegSizesFront[]; |
| 392 | static const uint64_t kAvailableJpegMinDurations[]; |
| 393 | |
| 394 | /**************************************************************************** |
| 395 | * Data members. |
| 396 | ***************************************************************************/ |
| 397 | |
| 398 | protected: |
| 399 | /* Facing back (true) or front (false) switch. */ |
| 400 | bool mFacingBack; |
| 401 | |
| 402 | private: |
Igor Murashkin | 4dc85ef | 2013-03-20 15:22:51 -0700 | [diff] [blame] | 403 | bool mIsConnected; |
| 404 | |
keunyoung | 8a94683 | 2013-03-08 12:28:03 -0800 | [diff] [blame] | 405 | /** Stream manipulation */ |
| 406 | uint32_t mNextStreamId; |
| 407 | uint32_t mRawStreamCount; |
| 408 | uint32_t mProcessedStreamCount; |
| 409 | uint32_t mJpegStreamCount; |
| 410 | |
| 411 | uint32_t mNextReprocessStreamId; |
| 412 | uint32_t mReprocessStreamCount; |
| 413 | |
| 414 | KeyedVector<uint32_t, Stream> mStreams; |
| 415 | KeyedVector<uint32_t, ReprocessStream> mReprocessStreams; |
| 416 | |
| 417 | /** Simulated hardware interfaces */ |
| 418 | sp<Sensor> mSensor; |
| 419 | sp<JpegCompressor> mJpegCompressor; |
| 420 | |
| 421 | /** Pipeline control threads */ |
| 422 | sp<ConfigureThread> mConfigureThread; |
| 423 | sp<ReadoutThread> mReadoutThread; |
| 424 | sp<ControlThread> mControlThread; |
| 425 | }; |
| 426 | |
| 427 | }; /* namespace android */ |
| 428 | |
| 429 | #endif /* HW_EMULATOR_CAMERA_EMULATED_FAKE_CAMERA2_H */ |