| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * This class is a simple simulation of a typical CMOS cellphone imager chip, |
| * which outputs 12-bit Bayer-mosaic raw images. |
| * |
| * Unlike most real image sensors, this one's native color space is linear sRGB. |
| * |
| * The sensor is abstracted as operating as a pipeline 3 stages deep; |
| * conceptually, each frame to be captured goes through these three stages. The |
| * processing step for the sensor is marked off by vertical sync signals, which |
| * indicate the start of readout of the oldest frame. The interval between |
| * processing steps depends on the frame duration of the frame currently being |
| * captured. The stages are 1) configure, 2) capture, and 3) readout. During |
| * configuration, the sensor's registers for settings such as exposure time, |
| * frame duration, and gain are set for the next frame to be captured. In stage |
| * 2, the image data for the frame is actually captured by the sensor. Finally, |
| * in stage 3, the just-captured data is read out and sent to the rest of the |
| * system. |
| * |
| * The sensor is assumed to be rolling-shutter, so low-numbered rows of the |
| * sensor are exposed earlier in time than larger-numbered rows, with the time |
| * offset between each row being equal to the row readout time. |
| * |
| * The characteristics of this sensor don't correspond to any actual sensor, |
| * but are not far off typical sensors. |
| * |
| * Example timing diagram, with three frames: |
| * Frame 0-1: Frame duration 50 ms, exposure time 20 ms. |
| * Frame 2: Frame duration 75 ms, exposure time 65 ms. |
| * Legend: |
| * C = update sensor registers for frame |
| * v = row in reset (vertical blanking interval) |
| * E = row capturing image data |
| * R = row being read out |
| * | = vertical sync signal |
| *time(ms)| 0 55 105 155 230 270 |
| * Frame 0| :configure : capture : readout : : : |
| * Row # | ..|CCCC______|_________|_________| : : |
| * 0 | :\ \vvvvvEEEER \ : : |
| * 500 | : \ \vvvvvEEEER \ : : |
| * 1000 | : \ \vvvvvEEEER \ : : |
| * 1500 | : \ \vvvvvEEEER \ : : |
| * 2000 | : \__________\vvvvvEEEER_________\ : : |
| * Frame 1| : configure capture readout : : |
| * Row # | : |CCCC_____|_________|______________| : |
| * 0 | : :\ \vvvvvEEEER \ : |
| * 500 | : : \ \vvvvvEEEER \ : |
| * 1000 | : : \ \vvvvvEEEER \ : |
| * 1500 | : : \ \vvvvvEEEER \ : |
| * 2000 | : : \_________\vvvvvEEEER______________\ : |
| * Frame 2| : : configure capture readout: |
| * Row # | : : |CCCC_____|______________|_______|... |
| * 0 | : : :\ \vEEEEEEEEEEEEER \ |
| * 500 | : : : \ \vEEEEEEEEEEEEER \ |
| * 1000 | : : : \ \vEEEEEEEEEEEEER \ |
| * 1500 | : : : \ \vEEEEEEEEEEEEER \ |
| * 2000 | : : : \_________\vEEEEEEEEEEEEER_______\ |
| */ |
| |
| #ifndef HW_EMULATOR_CAMERA2_SENSOR_H |
| #define HW_EMULATOR_CAMERA2_SENSOR_H |
| |
| #include <hwl_types.h> |
| |
| #include <algorithm> |
| #include <functional> |
| |
| #include "Base.h" |
| #include "EmulatedScene.h" |
| #include "JpegCompressor.h" |
| #include "utils/Mutex.h" |
| #include "utils/StreamConfigurationMap.h" |
| #include "utils/Thread.h" |
| #include "utils/Timers.h" |
| |
| namespace android { |
| |
| using google_camera_hal::HwlPipelineCallback; |
| using google_camera_hal::HwlPipelineResult; |
| using google_camera_hal::StreamConfiguration; |
| |
| /* |
| * Default to sRGB with D65 white point |
| */ |
| struct ColorFilterXYZ { |
| float rX = 3.2406f; |
| float rY = -1.5372f; |
| float rZ = -0.4986f; |
| float grX = -0.9689f; |
| float grY = 1.8758f; |
| float grZ = 0.0415f; |
| float gbX = -0.9689f; |
| float gbY = 1.8758f; |
| float gbZ = 0.0415f; |
| float bX = 0.0557f; |
| float bY = -0.2040f; |
| float bZ = 1.0570f; |
| }; |
| |
| typedef std::unordered_map< |
| camera_metadata_enum_android_request_available_dynamic_range_profiles_map, |
| std::unordered_set< |
| camera_metadata_enum_android_request_available_dynamic_range_profiles_map>> |
| ProfileMap; |
| |
| struct SensorCharacteristics { |
| size_t width = 0; |
| size_t height = 0; |
| size_t full_res_width = 0; |
| size_t full_res_height = 0; |
| nsecs_t exposure_time_range[2] = {0}; |
| nsecs_t frame_duration_range[2] = {0}; |
| int32_t sensitivity_range[2] = {0}; |
| camera_metadata_enum_android_sensor_info_color_filter_arrangement |
| color_arangement = ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB; |
| ColorFilterXYZ color_filter; |
| uint32_t max_raw_value = 0; |
| uint32_t black_level_pattern[4] = {0}; |
| uint32_t max_raw_streams = 0; |
| uint32_t max_processed_streams = 0; |
| uint32_t max_stalling_streams = 0; |
| uint32_t max_input_streams = 0; |
| uint32_t physical_size[2] = {0}; |
| bool is_flash_supported = false; |
| uint32_t lens_shading_map_size[2] = {0}; |
| uint32_t max_pipeline_depth = 0; |
| uint32_t orientation = 0; |
| bool is_front_facing = false; |
| bool quad_bayer_sensor = false; |
| bool is_10bit_dynamic_range_capable = false; |
| ProfileMap dynamic_range_profiles; |
| bool support_stream_use_case = false; |
| }; |
| |
| // Maps logical/physical camera ids to sensor characteristics |
| typedef std::unordered_map<uint32_t, SensorCharacteristics> LogicalCharacteristics; |
| |
| class EmulatedSensor : private Thread, public virtual RefBase { |
| public: |
| EmulatedSensor(); |
| ~EmulatedSensor(); |
| |
| static android_pixel_format_t OverrideFormat( |
| android_pixel_format_t format, |
| camera_metadata_enum_android_request_available_dynamic_range_profiles_map |
| profile) { |
| switch (profile) { |
| case ANDROID_REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES_MAP_STANDARD: |
| if (format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) { |
| return HAL_PIXEL_FORMAT_YCBCR_420_888; |
| } |
| break; |
| case ANDROID_REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES_MAP_HLG10: |
| if (format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) { |
| return static_cast<android_pixel_format_t>( |
| HAL_PIXEL_FORMAT_YCBCR_P010); |
| } |
| break; |
| default: |
| ALOGE("%s: Unsupported dynamic range profile 0x%x", __FUNCTION__, |
| profile); |
| } |
| |
| return format; |
| } |
| |
| static bool IsReprocessPathSupported(android_pixel_format_t input_format, |
| android_pixel_format_t output_format) { |
| if ((HAL_PIXEL_FORMAT_YCBCR_420_888 == input_format) && |
| ((HAL_PIXEL_FORMAT_YCBCR_420_888 == output_format) || |
| (HAL_PIXEL_FORMAT_BLOB == output_format))) { |
| return true; |
| } |
| |
| if (HAL_PIXEL_FORMAT_RAW16 == input_format && |
| HAL_PIXEL_FORMAT_RAW16 == output_format) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool AreCharacteristicsSupported( |
| const SensorCharacteristics& characteristics); |
| |
| static bool IsStreamCombinationSupported( |
| uint32_t logical_id, const StreamConfiguration& config, |
| StreamConfigurationMap& map, StreamConfigurationMap& max_resolution_map, |
| const PhysicalStreamConfigurationMap& physical_map, |
| const PhysicalStreamConfigurationMap& physical_map_max_resolution, |
| const LogicalCharacteristics& sensor_chars); |
| |
| static bool IsStreamCombinationSupported( |
| uint32_t logical_id, const StreamConfiguration& config, |
| StreamConfigurationMap& map, |
| const PhysicalStreamConfigurationMap& physical_map, |
| const LogicalCharacteristics& sensor_chars, bool is_max_res = false); |
| |
| /* |
| * Power control |
| */ |
| |
| status_t StartUp(uint32_t logical_camera_id, |
| std::unique_ptr<LogicalCharacteristics> logical_chars); |
| status_t ShutDown(); |
| |
| /* |
| * Physical camera settings control |
| */ |
| struct SensorSettings { |
| nsecs_t exposure_time = 0; |
| nsecs_t frame_duration = 0; |
| uint32_t gain = 0; // ISO |
| uint32_t lens_shading_map_mode; |
| bool report_neutral_color_point = false; |
| bool report_green_split = false; |
| bool report_noise_profile = false; |
| float zoom_ratio = 1.0f; |
| bool report_rotate_and_crop = false; |
| uint8_t rotate_and_crop = ANDROID_SCALER_ROTATE_AND_CROP_NONE; |
| bool report_video_stab = false; |
| uint8_t video_stab = ANDROID_CONTROL_VIDEO_STABILIZATION_MODE_OFF; |
| bool report_edge_mode = false; |
| uint8_t edge_mode = ANDROID_EDGE_MODE_OFF; |
| uint8_t sensor_pixel_mode = ANDROID_SENSOR_PIXEL_MODE_DEFAULT; |
| uint8_t test_pattern_mode = ANDROID_SENSOR_TEST_PATTERN_MODE_OFF; |
| uint32_t test_pattern_data[4] = {0, 0, 0, 0}; |
| uint32_t screen_rotation = 0; |
| }; |
| |
| // Maps physical and logical camera ids to individual device settings |
| typedef std::unordered_map<uint32_t, SensorSettings> LogicalCameraSettings; |
| |
| void SetCurrentRequest(std::unique_ptr<LogicalCameraSettings> logical_settings, |
| std::unique_ptr<HwlPipelineResult> result, |
| std::unique_ptr<Buffers> input_buffers, |
| std::unique_ptr<Buffers> output_buffers); |
| |
| status_t Flush(); |
| |
| /* |
| * Synchronizing with sensor operation (vertical sync) |
| */ |
| |
| // Wait until the sensor outputs its next vertical sync signal, meaning it |
| // is starting readout of its latest frame of data. Returns true if vertical |
| // sync is signaled, false if the wait timed out. |
| bool WaitForVSync(nsecs_t rel_time); |
| |
| static const nsecs_t kSupportedExposureTimeRange[2]; |
| static const nsecs_t kSupportedFrameDurationRange[2]; |
| static const int32_t kSupportedSensitivityRange[2]; |
| static const uint8_t kSupportedColorFilterArrangement; |
| static const uint32_t kDefaultMaxRawValue; |
| static const nsecs_t kDefaultExposureTime; |
| static const int32_t kDefaultSensitivity; |
| static const nsecs_t kDefaultFrameDuration; |
| static const nsecs_t kReturnResultThreshod; |
| static const uint32_t kDefaultBlackLevelPattern[4]; |
| static const camera_metadata_rational kDefaultColorTransform[9]; |
| static const float kDefaultColorCorrectionGains[4]; |
| static const float kDefaultToneMapCurveRed[4]; |
| static const float kDefaultToneMapCurveGreen[4]; |
| static const float kDefaultToneMapCurveBlue[4]; |
| static const uint8_t kPipelineDepth; |
| |
| private: |
| // Scene stabilization |
| static const uint32_t kRegularSceneHandshake; |
| static const uint32_t kReducedSceneHandshake; |
| |
| /** |
| * Logical characteristics |
| */ |
| std::unique_ptr<LogicalCharacteristics> chars_; |
| |
| uint32_t logical_camera_id_ = 0; |
| |
| static const nsecs_t kMinVerticalBlank; |
| |
| // Sensor sensitivity, approximate |
| |
| static const float kSaturationVoltage; |
| static const uint32_t kSaturationElectrons; |
| static const float kVoltsPerLuxSecond; |
| static const float kElectronsPerLuxSecond; |
| |
| static const float kReadNoiseStddevBeforeGain; // In electrons |
| static const float kReadNoiseStddevAfterGain; // In raw digital units |
| static const float kReadNoiseVarBeforeGain; |
| static const float kReadNoiseVarAfterGain; |
| static const camera_metadata_rational kNeutralColorPoint[3]; |
| static const float kGreenSplit; |
| |
| static const uint32_t kMaxRAWStreams; |
| static const uint32_t kMaxProcessedStreams; |
| static const uint32_t kMaxStallingStreams; |
| static const uint32_t kMaxInputStreams; |
| static const uint32_t kMaxLensShadingMapSize[2]; |
| static const int32_t kFixedBitPrecision; |
| static const int32_t kSaturationPoint; |
| |
| std::vector<int32_t> gamma_table_; |
| |
| Mutex control_mutex_; // Lock before accessing control parameters |
| // Start of control parameters |
| Condition vsync_; |
| bool got_vsync_; |
| std::unique_ptr<LogicalCameraSettings> current_settings_; |
| std::unique_ptr<HwlPipelineResult> current_result_; |
| std::unique_ptr<Buffers> current_output_buffers_; |
| std::unique_ptr<Buffers> current_input_buffers_; |
| std::unique_ptr<JpegCompressor> jpeg_compressor_; |
| |
| // End of control parameters |
| |
| unsigned int rand_seed_ = 1; |
| |
| /** |
| * Inherited Thread virtual overrides, and members only used by the |
| * processing thread |
| */ |
| bool threadLoop() override; |
| |
| nsecs_t next_capture_time_; |
| nsecs_t next_readout_time_; |
| |
| struct SensorBinningFactorInfo { |
| bool has_raw_stream = false; |
| bool has_non_raw_stream = false; |
| bool quad_bayer_sensor = false; |
| bool max_res_request = false; |
| }; |
| |
| std::map<uint32_t, SensorBinningFactorInfo> sensor_binning_factor_info_; |
| |
| std::unique_ptr<EmulatedScene> scene_; |
| |
| static EmulatedScene::ColorChannels GetQuadBayerColor(uint32_t x, uint32_t y); |
| |
| static void RemosaicQuadBayerBlock(uint16_t* img_in, uint16_t* img_out, |
| int xstart, int ystart, |
| int row_stride_in_bytes); |
| |
| static status_t RemosaicRAW16Image(uint16_t* img_in, uint16_t* img_out, |
| size_t row_stride_in_bytes, |
| const SensorCharacteristics& chars); |
| |
| void CaptureRawBinned(uint8_t* img, size_t row_stride_in_bytes, uint32_t gain, |
| const SensorCharacteristics& chars); |
| |
| void CaptureRawFullRes(uint8_t* img, size_t row_stride_in_bytes, |
| uint32_t gain, const SensorCharacteristics& chars); |
| |
| enum RGBLayout { RGB, RGBA, ARGB }; |
| void CaptureRGB(uint8_t* img, uint32_t width, uint32_t height, |
| uint32_t stride, RGBLayout layout, uint32_t gain, |
| const SensorCharacteristics& chars); |
| void CaptureYUV420(YCbCrPlanes yuv_layout, uint32_t width, uint32_t height, |
| uint32_t gain, float zoom_ratio, bool rotate, |
| const SensorCharacteristics& chars); |
| void CaptureDepth(uint8_t* img, uint32_t gain, uint32_t width, uint32_t height, |
| uint32_t stride, const SensorCharacteristics& chars); |
| |
| struct YUV420Frame { |
| uint32_t width = 0; |
| uint32_t height = 0; |
| YCbCrPlanes planes; |
| }; |
| |
| enum ProcessType { REPROCESS, HIGH_QUALITY, REGULAR }; |
| status_t ProcessYUV420(const YUV420Frame& input, const YUV420Frame& output, |
| uint32_t gain, ProcessType process_type, |
| float zoom_ratio, bool rotate_and_crop, |
| const SensorCharacteristics& chars); |
| |
| inline int32_t ApplysRGBGamma(int32_t value, int32_t saturation); |
| |
| bool WaitForVSyncLocked(nsecs_t reltime); |
| void CalculateAndAppendNoiseProfile(float gain /*in ISO*/, |
| float base_gain_factor, |
| HalCameraMetadata* result /*out*/); |
| |
| void ReturnResults(HwlPipelineCallback callback, |
| std::unique_ptr<LogicalCameraSettings> settings, |
| std::unique_ptr<HwlPipelineResult> result, |
| bool reprocess_request); |
| |
| static float GetBaseGainFactor(float max_raw_value) { |
| return max_raw_value / EmulatedSensor::kSaturationElectrons; |
| } |
| }; |
| |
| } // namespace android |
| |
| #endif // HW_EMULATOR_CAMERA2_SENSOR_H |
