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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* camera_sensor.h - A camera sensor
*/
#pragma once
#include <memory>
#include <string>
#include <variant>
#include <vector>
#include <libcamera/base/class.h>
#include <libcamera/control_ids.h>
#include <libcamera/controls.h>
#include <libcamera/geometry.h>
#include <libcamera/orientation.h>
#include <libcamera/transform.h>
#include "libcamera/internal/bayer_format.h"
#include "libcamera/internal/formats.h"
#include "libcamera/internal/v4l2_subdevice.h"
namespace libcamera {
class CameraLens;
class MediaEntity;
class SensorConfiguration;
enum class Orientation;
struct IPACameraSensorInfo;
class CameraSensor
{
public:
virtual ~CameraSensor();
virtual const std::string &model() const = 0;
virtual const std::string &id() const = 0;
virtual const MediaEntity *entity() const = 0;
virtual V4L2Subdevice *device() = 0;
virtual CameraLens *focusLens() = 0;
virtual const std::vector<unsigned int> &mbusCodes() const = 0;
virtual std::vector<Size> sizes(unsigned int mbusCode) const = 0;
virtual Size resolution() const = 0;
virtual V4L2SubdeviceFormat
getFormat(const std::vector<unsigned int> &mbusCodes,
const Size &size) const = 0;
virtual int setFormat(V4L2SubdeviceFormat *format,
Transform transform = Transform::Identity) = 0;
virtual int tryFormat(V4L2SubdeviceFormat *format) const = 0;
virtual int applyConfiguration(const SensorConfiguration &config,
Transform transform = Transform::Identity,
V4L2SubdeviceFormat *sensorFormat = nullptr) = 0;
virtual V4L2Subdevice::Stream imageStream() const;
virtual std::optional<V4L2Subdevice::Stream> embeddedDataStream() const;
virtual V4L2SubdeviceFormat embeddedDataFormat() const;
virtual int setEmbeddedDataEnabled(bool enable);
virtual const ControlList &properties() const = 0;
virtual int sensorInfo(IPACameraSensorInfo *info) const = 0;
virtual Transform computeTransform(Orientation *orientation) const = 0;
virtual BayerFormat::Order bayerOrder(Transform t) const = 0;
virtual const ControlInfoMap &controls() const = 0;
virtual ControlList getControls(const std::vector<uint32_t> &ids) = 0;
virtual int setControls(ControlList *ctrls) = 0;
virtual const std::vector<controls::draft::TestPatternModeEnum> &
testPatternModes() const = 0;
virtual int setTestPatternMode(controls::draft::TestPatternModeEnum mode) = 0;
};
class CameraSensorFactoryBase
{
public:
CameraSensorFactoryBase(int priority);
virtual ~CameraSensorFactoryBase() = default;
static std::unique_ptr<CameraSensor> create(MediaEntity *entity);
int priority() const { return priority_; }
private:
LIBCAMERA_DISABLE_COPY_AND_MOVE(CameraSensorFactoryBase)
static std::vector<CameraSensorFactoryBase *> &factories();
static void registerFactory(CameraSensorFactoryBase *factory);
virtual std::variant<std::unique_ptr<CameraSensor>, int>
match(MediaEntity *entity) const = 0;
int priority_;
};
template<typename _CameraSensor>
class CameraSensorFactory final : public CameraSensorFactoryBase
{
public:
CameraSensorFactory(int priority)
: CameraSensorFactoryBase(priority)
{
}
private:
std::variant<std::unique_ptr<CameraSensor>, int>
match(MediaEntity *entity) const override
{
return _CameraSensor::match(entity);
}
};
#define REGISTER_CAMERA_SENSOR(sensor, priority) \
static CameraSensorFactory<sensor> global_##sensor##Factory{ priority };
} /* namespace libcamera */
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