/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_EXTCAMERADEVICE_H
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#define ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_EXTCAMERADEVICE_H
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#include "utils/Mutex.h"
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#include "CameraMetadata.h"
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#include <android/hardware/camera/device/3.2/ICameraDevice.h>
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#include <hidl/Status.h>
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#include <hidl/MQDescriptor.h>
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#include "ExternalCameraDeviceSession.h"
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#include <vector>
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namespace android {
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namespace hardware {
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namespace camera {
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namespace device {
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namespace V3_4 {
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namespace implementation {
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using namespace ::android::hardware::camera::device;
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using ::android::hardware::camera::device::V3_2::ICameraDevice;
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using ::android::hardware::camera::device::V3_2::ICameraDeviceCallback;
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using ::android::hardware::camera::common::V1_0::CameraResourceCost;
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using ::android::hardware::camera::common::V1_0::TorchMode;
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using ::android::hardware::camera::common::V1_0::Status;
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using ::android::hardware::camera::external::common::ExternalCameraConfig;
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using ::android::hardware::camera::external::common::Size;
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using ::android::hardware::Return;
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using ::android::hardware::Void;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::hidl_string;
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using ::android::sp;
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/*
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* The camera device HAL implementation is opened lazily (via the open call)
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*/
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struct ExternalCameraDevice : public virtual RefBase {
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// Called by external camera provider HAL.
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// Provider HAL must ensure the uniqueness of CameraDevice object per cameraId, or there could
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// be multiple CameraDevice trying to access the same physical camera. Also, provider will have
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// to keep track of all CameraDevice objects in order to notify CameraDevice when the underlying
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// camera is detached.
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ExternalCameraDevice(const std::string& cameraId, const ExternalCameraConfig& cfg);
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virtual ~ExternalCameraDevice();
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// Retrieve the HIDL interface, split into its own class to avoid inheritance issues when
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// dealing with minor version revs and simultaneous implementation and interface inheritance
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virtual sp<ICameraDevice> getInterface() {
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return new TrampolineDeviceInterface_3_4(this);
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}
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// Caller must use this method to check if CameraDevice ctor failed
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bool isInitFailed();
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bool isInitFailedLocked();
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/* Methods from ::android::hardware::camera::device::V3_2::ICameraDevice follow. */
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// The following method can be called without opening the actual camera device
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Return<void> getResourceCost(ICameraDevice::getResourceCost_cb _hidl_cb);
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Return<void> getCameraCharacteristics(
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ICameraDevice::getCameraCharacteristics_cb _hidl_cb);
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Return<Status> setTorchMode(TorchMode);
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// Open the device HAL and also return a default capture session
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Return<void> open(const sp<ICameraDeviceCallback>&, ICameraDevice::open_cb);
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// Forward the dump call to the opened session, or do nothing
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Return<void> dumpState(const ::android::hardware::hidl_handle&);
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/* End of Methods from ::android::hardware::camera::device::V3_2::ICameraDevice */
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protected:
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// Overridden by child implementations for returning different versions of
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// ExternalCameraDeviceSession
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virtual sp<ExternalCameraDeviceSession> createSession(
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const sp<ICameraDeviceCallback>&,
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const ExternalCameraConfig& cfg,
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const std::vector<SupportedV4L2Format>& sortedFormats,
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const CroppingType& croppingType,
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const common::V1_0::helper::CameraMetadata& chars,
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const std::string& cameraId,
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unique_fd v4l2Fd);
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// Init supported w/h/format/fps in mSupportedFormats. Caller still owns fd
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void initSupportedFormatsLocked(int fd);
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// Calls into virtual member function. Do not use it in constructor
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status_t initCameraCharacteristics();
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// Init available capabilities keys
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status_t initAvailableCapabilities(
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::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
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// Init non-device dependent keys
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virtual status_t initDefaultCharsKeys(
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::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
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// Init camera control chars keys. Caller still owns fd
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status_t initCameraControlsCharsKeys(int fd,
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::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
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// Init camera output configuration related keys. Caller still owns fd
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status_t initOutputCharsKeys(int fd,
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::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
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// Helper function for initOutputCharskeys
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template <size_t SIZE>
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status_t initOutputCharskeysByFormat(
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::android::hardware::camera::common::V1_0::helper::CameraMetadata*,
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uint32_t fourcc, const std::array<int, SIZE>& formats,
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int scaler_stream_config_tag,
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int stream_configuration, int min_frame_duration, int stall_duration);
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bool calculateMinFps(::android::hardware::camera::common::V1_0::helper::CameraMetadata*);
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static void getFrameRateList(int fd, double fpsUpperBound, SupportedV4L2Format* format);
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static void updateFpsBounds(int fd, CroppingType cropType,
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const std::vector<ExternalCameraConfig::FpsLimitation>& fpsLimits,
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SupportedV4L2Format format,
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std::vector<SupportedV4L2Format>& outFmts);
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// Get candidate supported formats list of input cropping type.
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static std::vector<SupportedV4L2Format> getCandidateSupportedFormatsLocked(
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int fd, CroppingType cropType,
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const std::vector<ExternalCameraConfig::FpsLimitation>& fpsLimits,
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const std::vector<ExternalCameraConfig::FpsLimitation>& depthFpsLimits,
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const Size& minStreamSize,
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bool depthEnabled);
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// Trim supported format list by the cropping type. Also sort output formats by width/height
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static void trimSupportedFormats(CroppingType cropType,
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/*inout*/std::vector<SupportedV4L2Format>* pFmts);
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std::string devNameToCameraId(std::string devName, const ExternalCameraConfig& cfg);
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Mutex mLock;
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bool mInitialized = false;
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bool mInitFailed = false;
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std::string mDevName;
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std::string mCameraId;
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const ExternalCameraConfig& mCfg;
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std::vector<SupportedV4L2Format> mSupportedFormats;
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CroppingType mCroppingType;
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wp<ExternalCameraDeviceSession> mSession = nullptr;
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::android::hardware::camera::common::V1_0::helper::CameraMetadata mCameraCharacteristics;
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const std::vector<int32_t> AVAILABLE_CHARACTERISTICS_KEYS_3_4 = {
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ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
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ANDROID_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES,
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ANDROID_CONTROL_AE_AVAILABLE_MODES,
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ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
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ANDROID_CONTROL_AE_COMPENSATION_RANGE,
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ANDROID_CONTROL_AE_COMPENSATION_STEP,
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ANDROID_CONTROL_AE_LOCK_AVAILABLE,
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ANDROID_CONTROL_AF_AVAILABLE_MODES,
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ANDROID_CONTROL_AVAILABLE_EFFECTS,
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ANDROID_CONTROL_AVAILABLE_MODES,
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ANDROID_CONTROL_AVAILABLE_SCENE_MODES,
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ANDROID_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES,
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ANDROID_CONTROL_AWB_AVAILABLE_MODES,
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ANDROID_CONTROL_AWB_LOCK_AVAILABLE,
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ANDROID_CONTROL_MAX_REGIONS,
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ANDROID_FLASH_INFO_AVAILABLE,
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ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL,
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ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
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ANDROID_LENS_FACING,
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ANDROID_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
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ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION,
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ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
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ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
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ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS,
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ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
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ANDROID_REQUEST_PARTIAL_RESULT_COUNT,
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ANDROID_REQUEST_PIPELINE_MAX_DEPTH,
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ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
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ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
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ANDROID_SCALER_CROPPING_TYPE,
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ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
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ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
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ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
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ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE,
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ANDROID_SENSOR_INFO_TIMESTAMP_SOURCE,
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ANDROID_SENSOR_ORIENTATION,
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ANDROID_SHADING_AVAILABLE_MODES,
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ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
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ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
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ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
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ANDROID_STATISTICS_INFO_MAX_FACE_COUNT,
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ANDROID_SYNC_MAX_LATENCY};
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private:
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struct TrampolineDeviceInterface_3_4 : public ICameraDevice {
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TrampolineDeviceInterface_3_4(sp<ExternalCameraDevice> parent) :
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mParent(parent) {}
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virtual Return<void> getResourceCost(V3_2::ICameraDevice::getResourceCost_cb _hidl_cb)
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override {
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return mParent->getResourceCost(_hidl_cb);
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}
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virtual Return<void> getCameraCharacteristics(
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V3_2::ICameraDevice::getCameraCharacteristics_cb _hidl_cb) override {
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return mParent->getCameraCharacteristics(_hidl_cb);
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}
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virtual Return<Status> setTorchMode(TorchMode mode) override {
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return mParent->setTorchMode(mode);
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}
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virtual Return<void> open(const sp<V3_2::ICameraDeviceCallback>& callback,
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V3_2::ICameraDevice::open_cb _hidl_cb) override {
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return mParent->open(callback, _hidl_cb);
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}
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virtual Return<void> dumpState(const hidl_handle& fd) override {
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return mParent->dumpState(fd);
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}
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private:
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sp<ExternalCameraDevice> mParent;
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};
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};
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} // namespace implementation
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} // namespace V3_4
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} // namespace device
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} // namespace camera
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_CAMERA_DEVICE_V3_4_EXTCAMERADEVICE_H
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