[libcamera-devel,v2,05/24] libcamera: controls: Index ControlList by unsigned int

Message ID 20191108205409.18845-6-laurent.pinchart@ideasonboard.com
State Accepted
Headers show
Series
  • Control serialization and IPA C API
Related show

Commit Message

Laurent Pinchart Nov. 8, 2019, 8:53 p.m. UTC
In preparation for serialization, index the ControlList by unsigned int.
This will allow deserializing a ControlList without requiring external
information.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 include/libcamera/controls.h              | 26 +++++++---
 src/libcamera/camera_controls.cpp         |  4 +-
 src/libcamera/controls.cpp                | 59 +++++++++--------------
 src/libcamera/include/camera_controls.h   |  2 +-
 src/libcamera/include/control_validator.h |  2 +-
 src/libcamera/pipeline/uvcvideo.cpp       |  4 +-
 src/libcamera/pipeline/vimc.cpp           |  4 +-
 src/libcamera/v4l2_device.cpp             | 23 ++++-----
 8 files changed, 60 insertions(+), 64 deletions(-)

Comments

Niklas Söderlund Nov. 14, 2019, 9:40 a.m. UTC | #1
Hi Laurent,

Thanks for your patch.

On 2019-11-08 22:53:50 +0200, Laurent Pinchart wrote:
> In preparation for serialization, index the ControlList by unsigned int.
> This will allow deserializing a ControlList without requiring external
> information.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

> ---
>  include/libcamera/controls.h              | 26 +++++++---
>  src/libcamera/camera_controls.cpp         |  4 +-
>  src/libcamera/controls.cpp                | 59 +++++++++--------------
>  src/libcamera/include/camera_controls.h   |  2 +-
>  src/libcamera/include/control_validator.h |  2 +-
>  src/libcamera/pipeline/uvcvideo.cpp       |  4 +-
>  src/libcamera/pipeline/vimc.cpp           |  4 +-
>  src/libcamera/v4l2_device.cpp             | 23 ++++-----
>  8 files changed, 60 insertions(+), 64 deletions(-)
> 
> diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
> index 19075858fbba..f9979a466eaa 100644
> --- a/include/libcamera/controls.h
> +++ b/include/libcamera/controls.h
> @@ -78,12 +78,22 @@ private:
>  	ControlType type_;
>  };
>  
> -static inline bool operator==(const ControlId &lhs, const ControlId &rhs)
> +static inline bool operator==(unsigned int lhs, const ControlId &rhs)
>  {
> -	return lhs.id() == rhs.id();
> +	return lhs == rhs.id();
>  }
>  
> -static inline bool operator!=(const ControlId &lhs, const ControlId &rhs)
> +static inline bool operator!=(unsigned int lhs, const ControlId &rhs)
> +{
> +	return !(lhs == rhs);
> +}
> +
> +static inline bool operator==(const ControlId &lhs, unsigned int rhs)
> +{
> +	return lhs.id() == rhs;
> +}
> +
> +static inline bool operator!=(const ControlId &lhs, unsigned int rhs)
>  {
>  	return !(lhs == rhs);
>  }
> @@ -175,7 +185,7 @@ private:
>  class ControlList
>  {
>  private:
> -	using ControlListMap = std::unordered_map<const ControlId *, ControlValue>;
> +	using ControlListMap = std::unordered_map<unsigned int, ControlValue>;
>  
>  public:
>  	ControlList(const ControlIdMap &idmap, ControlValidator *validator = nullptr);
> @@ -199,7 +209,7 @@ public:
>  	template<typename T>
>  	const T &get(const Control<T> &ctrl) const
>  	{
> -		const ControlValue *val = find(ctrl);
> +		const ControlValue *val = find(ctrl.id());
>  		if (!val) {
>  			static T t(0);
>  			return t;
> @@ -211,7 +221,7 @@ public:
>  	template<typename T>
>  	void set(const Control<T> &ctrl, const T &value)
>  	{
> -		ControlValue *val = find(ctrl);
> +		ControlValue *val = find(ctrl.id());
>  		if (!val)
>  			return;
>  
> @@ -222,8 +232,8 @@ public:
>  	void set(unsigned int id, const ControlValue &value);
>  
>  private:
> -	const ControlValue *find(const ControlId &id) const;
> -	ControlValue *find(const ControlId &id);
> +	const ControlValue *find(unsigned int id) const;
> +	ControlValue *find(unsigned int id);
>  
>  	ControlValidator *validator_;
>  	const ControlIdMap *idmap_;
> diff --git a/src/libcamera/camera_controls.cpp b/src/libcamera/camera_controls.cpp
> index 341da56019f7..59dcede2ca36 100644
> --- a/src/libcamera/camera_controls.cpp
> +++ b/src/libcamera/camera_controls.cpp
> @@ -44,10 +44,10 @@ const std::string &CameraControlValidator::name() const
>   * \param[in] id The control ID
>   * \return True if the control is valid, false otherwise
>   */
> -bool CameraControlValidator::validate(const ControlId &id) const
> +bool CameraControlValidator::validate(unsigned int id) const
>  {
>  	const ControlInfoMap &controls = camera_->controls();
> -	return controls.find(&id) != controls.end();
> +	return controls.find(id) != controls.end();
>  }
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
> index 2c5c98633585..021d5f0990e0 100644
> --- a/src/libcamera/controls.cpp
> +++ b/src/libcamera/controls.cpp
> @@ -259,16 +259,21 @@ bool ControlValue::operator==(const ControlValue &other) const
>   */
>  
>  /**
> - * \fn bool operator==(const ControlId &lhs, const ControlId &rhs)
> - * \brief Compare two ControlId instances for equality
> - * \param[in] lhs Left-hand side ControlId
> + * \fn bool operator==(unsigned int lhs, const ControlId &rhs)
> + * \brief Compare a ControlId with a control numerical ID
> + * \param[in] lhs Left-hand side numerical ID
>   * \param[in] rhs Right-hand side ControlId
>   *
> - * ControlId instances are compared based on the numerical ControlId::id()
> - * only, as an object may not have two separate controls with the same
> - * numerical ID.
> + * \return True if \a lhs is equal to \a rhs.id(), false otherwise
> + */
> +
> +/**
> + * \fn bool operator==(const ControlId &lhs, unsigned int rhs)
> + * \brief Compare a ControlId with a control numerical ID
> + * \param[in] lhs Left-hand side ControlId
> + * \param[in] rhs Right-hand side numerical ID
>   *
> - * \return True if \a lhs and \a rhs have equal control IDs, false otherwise
> + * \return True if \a lhs.id() is equal to \a rhs, false otherwise
>   */
>  
>  /**
> @@ -655,7 +660,7 @@ ControlList::ControlList(const ControlInfoMap &info, ControlValidator *validator
>   */
>  bool ControlList::contains(const ControlId &id) const
>  {
> -	return controls_.find(&id) != controls_.end();
> +	return controls_.find(id.id()) != controls_.end();
>  }
>  
>  /**
> @@ -666,11 +671,7 @@ bool ControlList::contains(const ControlId &id) const
>   */
>  bool ControlList::contains(unsigned int id) const
>  {
> -	const auto iter = idmap_->find(id);
> -	if (iter == idmap_->end())
> -		return false;
> -
> -	return contains(*iter->second);
> +	return controls_.find(id) != controls_.end();
>  }
>  
>  /**
> @@ -716,15 +717,7 @@ const ControlValue &ControlList::get(unsigned int id) const
>  {
>  	static ControlValue zero;
>  
> -	const auto ctrl = idmap_->find(id);
> -	if (ctrl == idmap_->end()) {
> -		LOG(Controls, Error)
> -			<< "Control " << utils::hex(id)
> -			<< " is not supported";
> -		return zero;
> -	}
> -
> -	const ControlValue *val = find(*ctrl->second);
> +	const ControlValue *val = find(id);
>  	if (!val)
>  		return zero;
>  
> @@ -745,27 +738,19 @@ const ControlValue &ControlList::get(unsigned int id) const
>   */
>  void ControlList::set(unsigned int id, const ControlValue &value)
>  {
> -	const auto ctrl = idmap_->find(id);
> -	if (ctrl == idmap_->end()) {
> -		LOG(Controls, Error)
> -			<< "Control 0x" << utils::hex(id)
> -			<< " is not supported";
> -		return;
> -	}
> -
> -	ControlValue *val = find(*ctrl->second);
> +	ControlValue *val = find(id);
>  	if (!val)
>  		return;
>  
>  	*val = value;
>  }
>  
> -const ControlValue *ControlList::find(const ControlId &id) const
> +const ControlValue *ControlList::find(unsigned int id) const
>  {
> -	const auto iter = controls_.find(&id);
> +	const auto iter = controls_.find(id);
>  	if (iter == controls_.end()) {
>  		LOG(Controls, Error)
> -			<< "Control " << id.name() << " not found";
> +			<< "Control " << utils::hex(id) << " not found";
>  
>  		return nullptr;
>  	}
> @@ -773,16 +758,16 @@ const ControlValue *ControlList::find(const ControlId &id) const
>  	return &iter->second;
>  }
>  
> -ControlValue *ControlList::find(const ControlId &id)
> +ControlValue *ControlList::find(unsigned int id)
>  {
>  	if (validator_ && !validator_->validate(id)) {
>  		LOG(Controls, Error)
> -			<< "Control " << id.name()
> +			<< "Control " << utils::hex(id)
>  			<< " is not valid for " << validator_->name();
>  		return nullptr;
>  	}
>  
> -	return &controls_[&id];
> +	return &controls_[id];
>  }
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/include/camera_controls.h b/src/libcamera/include/camera_controls.h
> index 998a2d155a44..265c1fe379db 100644
> --- a/src/libcamera/include/camera_controls.h
> +++ b/src/libcamera/include/camera_controls.h
> @@ -19,7 +19,7 @@ public:
>  	CameraControlValidator(Camera *camera);
>  
>  	const std::string &name() const override;
> -	bool validate(const ControlId &id) const override;
> +	bool validate(unsigned int id) const override;
>  
>  private:
>  	Camera *camera_;
> diff --git a/src/libcamera/include/control_validator.h b/src/libcamera/include/control_validator.h
> index 3598b18f2f26..f1c9110b158f 100644
> --- a/src/libcamera/include/control_validator.h
> +++ b/src/libcamera/include/control_validator.h
> @@ -19,7 +19,7 @@ public:
>  	virtual ~ControlValidator() {}
>  
>  	virtual const std::string &name() const = 0;
> -	virtual bool validate(const ControlId &id) const = 0;
> +	virtual bool validate(unsigned int id) const = 0;
>  };
>  
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo.cpp
> index 45448d6f8c05..522229241ffb 100644
> --- a/src/libcamera/pipeline/uvcvideo.cpp
> +++ b/src/libcamera/pipeline/uvcvideo.cpp
> @@ -231,7 +231,7 @@ int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
>  	ControlList controls(data->video_->controls());
>  
>  	for (auto it : request->controls()) {
> -		const ControlId &id = *it.first;
> +		unsigned int id = it.first;
>  		ControlValue &value = it.second;
>  
>  		if (id == controls::Brightness) {
> @@ -250,7 +250,7 @@ int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
>  
>  	for (const auto &ctrl : controls)
>  		LOG(UVC, Debug)
> -			<< "Setting control " << ctrl.first->name()
> +			<< "Setting control " << utils::hex(ctrl.first)
>  			<< " to " << ctrl.second.toString();
>  
>  	int ret = data->video_->setControls(&controls);
> diff --git a/src/libcamera/pipeline/vimc.cpp b/src/libcamera/pipeline/vimc.cpp
> index e6ab6a085824..06664fed42e7 100644
> --- a/src/libcamera/pipeline/vimc.cpp
> +++ b/src/libcamera/pipeline/vimc.cpp
> @@ -298,7 +298,7 @@ int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
>  	ControlList controls(data->sensor_->controls());
>  
>  	for (auto it : request->controls()) {
> -		const ControlId &id = *it.first;
> +		unsigned int id = it.first;
>  		ControlValue &value = it.second;
>  
>  		if (id == controls::Brightness)
> @@ -311,7 +311,7 @@ int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
>  
>  	for (const auto &ctrl : controls)
>  		LOG(VIMC, Debug)
> -			<< "Setting control " << ctrl.first->name()
> +			<< "Setting control " << utils::hex(ctrl.first)
>  			<< " to " << ctrl.second.toString();
>  
>  	int ret = data->sensor_->setControls(&controls);
> diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp
> index a2b0d891b12f..0452f801029c 100644
> --- a/src/libcamera/v4l2_device.cpp
> +++ b/src/libcamera/v4l2_device.cpp
> @@ -176,15 +176,15 @@ int V4L2Device::getControls(ControlList *ctrls)
>  
>  	unsigned int i = 0;
>  	for (const auto &ctrl : *ctrls) {
> -		const ControlId *id = ctrl.first;
> -		const auto iter = controls_.find(id->id());
> +		unsigned int id = ctrl.first;
> +		const auto iter = controls_.find(id);
>  		if (iter == controls_.end()) {
>  			LOG(V4L2, Error)
> -				<< "Control '" << id->name() << "' not found";
> +				<< "Control " << utils::hex(id) << " not found";
>  			return -EINVAL;
>  		}
>  
> -		v4l2Ctrls[i].id = id->id();
> +		v4l2Ctrls[i].id = id;
>  		i++;
>  	}
>  
> @@ -250,19 +250,19 @@ int V4L2Device::setControls(ControlList *ctrls)
>  
>  	unsigned int i = 0;
>  	for (const auto &ctrl : *ctrls) {
> -		const ControlId *id = ctrl.first;
> -		const auto iter = controls_.find(id->id());
> +		unsigned int id = ctrl.first;
> +		const auto iter = controls_.find(id);
>  		if (iter == controls_.end()) {
>  			LOG(V4L2, Error)
> -				<< "Control '" << id->name() << "' not found";
> +				<< "Control " << utils::hex(id) << " not found";
>  			return -EINVAL;
>  		}
>  
> -		v4l2Ctrls[i].id = id->id();
> +		v4l2Ctrls[i].id = id;
>  
>  		/* Set the v4l2_ext_control value for the write operation. */
>  		const ControlValue &value = ctrl.second;
> -		switch (id->type()) {
> +		switch (iter->first->type()) {
>  		case ControlTypeInteger64:
>  			v4l2Ctrls[i].value64 = value.get<int64_t>();
>  			break;
> @@ -403,10 +403,11 @@ void V4L2Device::updateControls(ControlList *ctrls,
>  			break;
>  
>  		const struct v4l2_ext_control *v4l2Ctrl = &v4l2Ctrls[i];
> -		const ControlId *id = ctrl.first;
> +		unsigned int id = ctrl.first;
>  		ControlValue &value = ctrl.second;
>  
> -		switch (id->type()) {
> +		const auto iter = controls_.find(id);
> +		switch (iter->first->type()) {
>  		case ControlTypeInteger64:
>  			value.set<int64_t>(v4l2Ctrl->value64);
>  			break;
> -- 
> Regards,
> 
> Laurent Pinchart
> 
> _______________________________________________
> libcamera-devel mailing list
> libcamera-devel@lists.libcamera.org
> https://lists.libcamera.org/listinfo/libcamera-devel
Jacopo Mondi Nov. 15, 2019, 4:08 p.m. UTC | #2
Hi Laurent,

On Fri, Nov 08, 2019 at 10:53:50PM +0200, Laurent Pinchart wrote:
> In preparation for serialization, index the ControlList by unsigned int.
> This will allow deserializing a ControlList without requiring external
> information.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

Thanks
  j

> ---
>  include/libcamera/controls.h              | 26 +++++++---
>  src/libcamera/camera_controls.cpp         |  4 +-
>  src/libcamera/controls.cpp                | 59 +++++++++--------------
>  src/libcamera/include/camera_controls.h   |  2 +-
>  src/libcamera/include/control_validator.h |  2 +-
>  src/libcamera/pipeline/uvcvideo.cpp       |  4 +-
>  src/libcamera/pipeline/vimc.cpp           |  4 +-
>  src/libcamera/v4l2_device.cpp             | 23 ++++-----
>  8 files changed, 60 insertions(+), 64 deletions(-)
>
> diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
> index 19075858fbba..f9979a466eaa 100644
> --- a/include/libcamera/controls.h
> +++ b/include/libcamera/controls.h
> @@ -78,12 +78,22 @@ private:
>  	ControlType type_;
>  };
>
> -static inline bool operator==(const ControlId &lhs, const ControlId &rhs)
> +static inline bool operator==(unsigned int lhs, const ControlId &rhs)
>  {
> -	return lhs.id() == rhs.id();
> +	return lhs == rhs.id();
>  }
>
> -static inline bool operator!=(const ControlId &lhs, const ControlId &rhs)
> +static inline bool operator!=(unsigned int lhs, const ControlId &rhs)
> +{
> +	return !(lhs == rhs);
> +}
> +
> +static inline bool operator==(const ControlId &lhs, unsigned int rhs)
> +{
> +	return lhs.id() == rhs;
> +}
> +
> +static inline bool operator!=(const ControlId &lhs, unsigned int rhs)
>  {
>  	return !(lhs == rhs);
>  }
> @@ -175,7 +185,7 @@ private:
>  class ControlList
>  {
>  private:
> -	using ControlListMap = std::unordered_map<const ControlId *, ControlValue>;
> +	using ControlListMap = std::unordered_map<unsigned int, ControlValue>;
>
>  public:
>  	ControlList(const ControlIdMap &idmap, ControlValidator *validator = nullptr);
> @@ -199,7 +209,7 @@ public:
>  	template<typename T>
>  	const T &get(const Control<T> &ctrl) const
>  	{
> -		const ControlValue *val = find(ctrl);
> +		const ControlValue *val = find(ctrl.id());
>  		if (!val) {
>  			static T t(0);
>  			return t;
> @@ -211,7 +221,7 @@ public:
>  	template<typename T>
>  	void set(const Control<T> &ctrl, const T &value)
>  	{
> -		ControlValue *val = find(ctrl);
> +		ControlValue *val = find(ctrl.id());
>  		if (!val)
>  			return;
>
> @@ -222,8 +232,8 @@ public:
>  	void set(unsigned int id, const ControlValue &value);
>
>  private:
> -	const ControlValue *find(const ControlId &id) const;
> -	ControlValue *find(const ControlId &id);
> +	const ControlValue *find(unsigned int id) const;
> +	ControlValue *find(unsigned int id);
>
>  	ControlValidator *validator_;
>  	const ControlIdMap *idmap_;
> diff --git a/src/libcamera/camera_controls.cpp b/src/libcamera/camera_controls.cpp
> index 341da56019f7..59dcede2ca36 100644
> --- a/src/libcamera/camera_controls.cpp
> +++ b/src/libcamera/camera_controls.cpp
> @@ -44,10 +44,10 @@ const std::string &CameraControlValidator::name() const
>   * \param[in] id The control ID
>   * \return True if the control is valid, false otherwise
>   */
> -bool CameraControlValidator::validate(const ControlId &id) const
> +bool CameraControlValidator::validate(unsigned int id) const
>  {
>  	const ControlInfoMap &controls = camera_->controls();
> -	return controls.find(&id) != controls.end();
> +	return controls.find(id) != controls.end();
>  }
>
>  } /* namespace libcamera */
> diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
> index 2c5c98633585..021d5f0990e0 100644
> --- a/src/libcamera/controls.cpp
> +++ b/src/libcamera/controls.cpp
> @@ -259,16 +259,21 @@ bool ControlValue::operator==(const ControlValue &other) const
>   */
>
>  /**
> - * \fn bool operator==(const ControlId &lhs, const ControlId &rhs)
> - * \brief Compare two ControlId instances for equality
> - * \param[in] lhs Left-hand side ControlId
> + * \fn bool operator==(unsigned int lhs, const ControlId &rhs)
> + * \brief Compare a ControlId with a control numerical ID
> + * \param[in] lhs Left-hand side numerical ID
>   * \param[in] rhs Right-hand side ControlId
>   *
> - * ControlId instances are compared based on the numerical ControlId::id()
> - * only, as an object may not have two separate controls with the same
> - * numerical ID.
> + * \return True if \a lhs is equal to \a rhs.id(), false otherwise
> + */
> +
> +/**
> + * \fn bool operator==(const ControlId &lhs, unsigned int rhs)
> + * \brief Compare a ControlId with a control numerical ID
> + * \param[in] lhs Left-hand side ControlId
> + * \param[in] rhs Right-hand side numerical ID
>   *
> - * \return True if \a lhs and \a rhs have equal control IDs, false otherwise
> + * \return True if \a lhs.id() is equal to \a rhs, false otherwise
>   */
>
>  /**
> @@ -655,7 +660,7 @@ ControlList::ControlList(const ControlInfoMap &info, ControlValidator *validator
>   */
>  bool ControlList::contains(const ControlId &id) const
>  {
> -	return controls_.find(&id) != controls_.end();
> +	return controls_.find(id.id()) != controls_.end();
>  }
>
>  /**
> @@ -666,11 +671,7 @@ bool ControlList::contains(const ControlId &id) const
>   */
>  bool ControlList::contains(unsigned int id) const
>  {
> -	const auto iter = idmap_->find(id);
> -	if (iter == idmap_->end())
> -		return false;
> -
> -	return contains(*iter->second);
> +	return controls_.find(id) != controls_.end();
>  }
>
>  /**
> @@ -716,15 +717,7 @@ const ControlValue &ControlList::get(unsigned int id) const
>  {
>  	static ControlValue zero;
>
> -	const auto ctrl = idmap_->find(id);
> -	if (ctrl == idmap_->end()) {
> -		LOG(Controls, Error)
> -			<< "Control " << utils::hex(id)
> -			<< " is not supported";
> -		return zero;
> -	}
> -
> -	const ControlValue *val = find(*ctrl->second);
> +	const ControlValue *val = find(id);
>  	if (!val)
>  		return zero;
>
> @@ -745,27 +738,19 @@ const ControlValue &ControlList::get(unsigned int id) const
>   */
>  void ControlList::set(unsigned int id, const ControlValue &value)
>  {
> -	const auto ctrl = idmap_->find(id);
> -	if (ctrl == idmap_->end()) {
> -		LOG(Controls, Error)
> -			<< "Control 0x" << utils::hex(id)
> -			<< " is not supported";
> -		return;
> -	}
> -
> -	ControlValue *val = find(*ctrl->second);
> +	ControlValue *val = find(id);
>  	if (!val)
>  		return;
>
>  	*val = value;
>  }
>
> -const ControlValue *ControlList::find(const ControlId &id) const
> +const ControlValue *ControlList::find(unsigned int id) const
>  {
> -	const auto iter = controls_.find(&id);
> +	const auto iter = controls_.find(id);
>  	if (iter == controls_.end()) {
>  		LOG(Controls, Error)
> -			<< "Control " << id.name() << " not found";
> +			<< "Control " << utils::hex(id) << " not found";
>
>  		return nullptr;
>  	}
> @@ -773,16 +758,16 @@ const ControlValue *ControlList::find(const ControlId &id) const
>  	return &iter->second;
>  }
>
> -ControlValue *ControlList::find(const ControlId &id)
> +ControlValue *ControlList::find(unsigned int id)
>  {
>  	if (validator_ && !validator_->validate(id)) {
>  		LOG(Controls, Error)
> -			<< "Control " << id.name()
> +			<< "Control " << utils::hex(id)
>  			<< " is not valid for " << validator_->name();
>  		return nullptr;
>  	}
>
> -	return &controls_[&id];
> +	return &controls_[id];
>  }
>
>  } /* namespace libcamera */
> diff --git a/src/libcamera/include/camera_controls.h b/src/libcamera/include/camera_controls.h
> index 998a2d155a44..265c1fe379db 100644
> --- a/src/libcamera/include/camera_controls.h
> +++ b/src/libcamera/include/camera_controls.h
> @@ -19,7 +19,7 @@ public:
>  	CameraControlValidator(Camera *camera);
>
>  	const std::string &name() const override;
> -	bool validate(const ControlId &id) const override;
> +	bool validate(unsigned int id) const override;
>
>  private:
>  	Camera *camera_;
> diff --git a/src/libcamera/include/control_validator.h b/src/libcamera/include/control_validator.h
> index 3598b18f2f26..f1c9110b158f 100644
> --- a/src/libcamera/include/control_validator.h
> +++ b/src/libcamera/include/control_validator.h
> @@ -19,7 +19,7 @@ public:
>  	virtual ~ControlValidator() {}
>
>  	virtual const std::string &name() const = 0;
> -	virtual bool validate(const ControlId &id) const = 0;
> +	virtual bool validate(unsigned int id) const = 0;
>  };
>
>  } /* namespace libcamera */
> diff --git a/src/libcamera/pipeline/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo.cpp
> index 45448d6f8c05..522229241ffb 100644
> --- a/src/libcamera/pipeline/uvcvideo.cpp
> +++ b/src/libcamera/pipeline/uvcvideo.cpp
> @@ -231,7 +231,7 @@ int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
>  	ControlList controls(data->video_->controls());
>
>  	for (auto it : request->controls()) {
> -		const ControlId &id = *it.first;
> +		unsigned int id = it.first;
>  		ControlValue &value = it.second;
>
>  		if (id == controls::Brightness) {
> @@ -250,7 +250,7 @@ int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
>
>  	for (const auto &ctrl : controls)
>  		LOG(UVC, Debug)
> -			<< "Setting control " << ctrl.first->name()
> +			<< "Setting control " << utils::hex(ctrl.first)
>  			<< " to " << ctrl.second.toString();
>
>  	int ret = data->video_->setControls(&controls);
> diff --git a/src/libcamera/pipeline/vimc.cpp b/src/libcamera/pipeline/vimc.cpp
> index e6ab6a085824..06664fed42e7 100644
> --- a/src/libcamera/pipeline/vimc.cpp
> +++ b/src/libcamera/pipeline/vimc.cpp
> @@ -298,7 +298,7 @@ int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
>  	ControlList controls(data->sensor_->controls());
>
>  	for (auto it : request->controls()) {
> -		const ControlId &id = *it.first;
> +		unsigned int id = it.first;
>  		ControlValue &value = it.second;
>
>  		if (id == controls::Brightness)
> @@ -311,7 +311,7 @@ int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
>
>  	for (const auto &ctrl : controls)
>  		LOG(VIMC, Debug)
> -			<< "Setting control " << ctrl.first->name()
> +			<< "Setting control " << utils::hex(ctrl.first)
>  			<< " to " << ctrl.second.toString();
>
>  	int ret = data->sensor_->setControls(&controls);
> diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp
> index a2b0d891b12f..0452f801029c 100644
> --- a/src/libcamera/v4l2_device.cpp
> +++ b/src/libcamera/v4l2_device.cpp
> @@ -176,15 +176,15 @@ int V4L2Device::getControls(ControlList *ctrls)
>
>  	unsigned int i = 0;
>  	for (const auto &ctrl : *ctrls) {
> -		const ControlId *id = ctrl.first;
> -		const auto iter = controls_.find(id->id());
> +		unsigned int id = ctrl.first;
> +		const auto iter = controls_.find(id);
>  		if (iter == controls_.end()) {
>  			LOG(V4L2, Error)
> -				<< "Control '" << id->name() << "' not found";
> +				<< "Control " << utils::hex(id) << " not found";
>  			return -EINVAL;
>  		}
>
> -		v4l2Ctrls[i].id = id->id();
> +		v4l2Ctrls[i].id = id;
>  		i++;
>  	}
>
> @@ -250,19 +250,19 @@ int V4L2Device::setControls(ControlList *ctrls)
>
>  	unsigned int i = 0;
>  	for (const auto &ctrl : *ctrls) {
> -		const ControlId *id = ctrl.first;
> -		const auto iter = controls_.find(id->id());
> +		unsigned int id = ctrl.first;
> +		const auto iter = controls_.find(id);
>  		if (iter == controls_.end()) {
>  			LOG(V4L2, Error)
> -				<< "Control '" << id->name() << "' not found";
> +				<< "Control " << utils::hex(id) << " not found";
>  			return -EINVAL;
>  		}
>
> -		v4l2Ctrls[i].id = id->id();
> +		v4l2Ctrls[i].id = id;
>
>  		/* Set the v4l2_ext_control value for the write operation. */
>  		const ControlValue &value = ctrl.second;
> -		switch (id->type()) {
> +		switch (iter->first->type()) {
>  		case ControlTypeInteger64:
>  			v4l2Ctrls[i].value64 = value.get<int64_t>();
>  			break;
> @@ -403,10 +403,11 @@ void V4L2Device::updateControls(ControlList *ctrls,
>  			break;
>
>  		const struct v4l2_ext_control *v4l2Ctrl = &v4l2Ctrls[i];
> -		const ControlId *id = ctrl.first;
> +		unsigned int id = ctrl.first;
>  		ControlValue &value = ctrl.second;
>
> -		switch (id->type()) {
> +		const auto iter = controls_.find(id);
> +		switch (iter->first->type()) {
>  		case ControlTypeInteger64:
>  			value.set<int64_t>(v4l2Ctrl->value64);
>  			break;
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> libcamera-devel mailing list
> libcamera-devel@lists.libcamera.org
> https://lists.libcamera.org/listinfo/libcamera-devel

Patch

diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
index 19075858fbba..f9979a466eaa 100644
--- a/include/libcamera/controls.h
+++ b/include/libcamera/controls.h
@@ -78,12 +78,22 @@  private:
 	ControlType type_;
 };
 
-static inline bool operator==(const ControlId &lhs, const ControlId &rhs)
+static inline bool operator==(unsigned int lhs, const ControlId &rhs)
 {
-	return lhs.id() == rhs.id();
+	return lhs == rhs.id();
 }
 
-static inline bool operator!=(const ControlId &lhs, const ControlId &rhs)
+static inline bool operator!=(unsigned int lhs, const ControlId &rhs)
+{
+	return !(lhs == rhs);
+}
+
+static inline bool operator==(const ControlId &lhs, unsigned int rhs)
+{
+	return lhs.id() == rhs;
+}
+
+static inline bool operator!=(const ControlId &lhs, unsigned int rhs)
 {
 	return !(lhs == rhs);
 }
@@ -175,7 +185,7 @@  private:
 class ControlList
 {
 private:
-	using ControlListMap = std::unordered_map<const ControlId *, ControlValue>;
+	using ControlListMap = std::unordered_map<unsigned int, ControlValue>;
 
 public:
 	ControlList(const ControlIdMap &idmap, ControlValidator *validator = nullptr);
@@ -199,7 +209,7 @@  public:
 	template<typename T>
 	const T &get(const Control<T> &ctrl) const
 	{
-		const ControlValue *val = find(ctrl);
+		const ControlValue *val = find(ctrl.id());
 		if (!val) {
 			static T t(0);
 			return t;
@@ -211,7 +221,7 @@  public:
 	template<typename T>
 	void set(const Control<T> &ctrl, const T &value)
 	{
-		ControlValue *val = find(ctrl);
+		ControlValue *val = find(ctrl.id());
 		if (!val)
 			return;
 
@@ -222,8 +232,8 @@  public:
 	void set(unsigned int id, const ControlValue &value);
 
 private:
-	const ControlValue *find(const ControlId &id) const;
-	ControlValue *find(const ControlId &id);
+	const ControlValue *find(unsigned int id) const;
+	ControlValue *find(unsigned int id);
 
 	ControlValidator *validator_;
 	const ControlIdMap *idmap_;
diff --git a/src/libcamera/camera_controls.cpp b/src/libcamera/camera_controls.cpp
index 341da56019f7..59dcede2ca36 100644
--- a/src/libcamera/camera_controls.cpp
+++ b/src/libcamera/camera_controls.cpp
@@ -44,10 +44,10 @@  const std::string &CameraControlValidator::name() const
  * \param[in] id The control ID
  * \return True if the control is valid, false otherwise
  */
-bool CameraControlValidator::validate(const ControlId &id) const
+bool CameraControlValidator::validate(unsigned int id) const
 {
 	const ControlInfoMap &controls = camera_->controls();
-	return controls.find(&id) != controls.end();
+	return controls.find(id) != controls.end();
 }
 
 } /* namespace libcamera */
diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
index 2c5c98633585..021d5f0990e0 100644
--- a/src/libcamera/controls.cpp
+++ b/src/libcamera/controls.cpp
@@ -259,16 +259,21 @@  bool ControlValue::operator==(const ControlValue &other) const
  */
 
 /**
- * \fn bool operator==(const ControlId &lhs, const ControlId &rhs)
- * \brief Compare two ControlId instances for equality
- * \param[in] lhs Left-hand side ControlId
+ * \fn bool operator==(unsigned int lhs, const ControlId &rhs)
+ * \brief Compare a ControlId with a control numerical ID
+ * \param[in] lhs Left-hand side numerical ID
  * \param[in] rhs Right-hand side ControlId
  *
- * ControlId instances are compared based on the numerical ControlId::id()
- * only, as an object may not have two separate controls with the same
- * numerical ID.
+ * \return True if \a lhs is equal to \a rhs.id(), false otherwise
+ */
+
+/**
+ * \fn bool operator==(const ControlId &lhs, unsigned int rhs)
+ * \brief Compare a ControlId with a control numerical ID
+ * \param[in] lhs Left-hand side ControlId
+ * \param[in] rhs Right-hand side numerical ID
  *
- * \return True if \a lhs and \a rhs have equal control IDs, false otherwise
+ * \return True if \a lhs.id() is equal to \a rhs, false otherwise
  */
 
 /**
@@ -655,7 +660,7 @@  ControlList::ControlList(const ControlInfoMap &info, ControlValidator *validator
  */
 bool ControlList::contains(const ControlId &id) const
 {
-	return controls_.find(&id) != controls_.end();
+	return controls_.find(id.id()) != controls_.end();
 }
 
 /**
@@ -666,11 +671,7 @@  bool ControlList::contains(const ControlId &id) const
  */
 bool ControlList::contains(unsigned int id) const
 {
-	const auto iter = idmap_->find(id);
-	if (iter == idmap_->end())
-		return false;
-
-	return contains(*iter->second);
+	return controls_.find(id) != controls_.end();
 }
 
 /**
@@ -716,15 +717,7 @@  const ControlValue &ControlList::get(unsigned int id) const
 {
 	static ControlValue zero;
 
-	const auto ctrl = idmap_->find(id);
-	if (ctrl == idmap_->end()) {
-		LOG(Controls, Error)
-			<< "Control " << utils::hex(id)
-			<< " is not supported";
-		return zero;
-	}
-
-	const ControlValue *val = find(*ctrl->second);
+	const ControlValue *val = find(id);
 	if (!val)
 		return zero;
 
@@ -745,27 +738,19 @@  const ControlValue &ControlList::get(unsigned int id) const
  */
 void ControlList::set(unsigned int id, const ControlValue &value)
 {
-	const auto ctrl = idmap_->find(id);
-	if (ctrl == idmap_->end()) {
-		LOG(Controls, Error)
-			<< "Control 0x" << utils::hex(id)
-			<< " is not supported";
-		return;
-	}
-
-	ControlValue *val = find(*ctrl->second);
+	ControlValue *val = find(id);
 	if (!val)
 		return;
 
 	*val = value;
 }
 
-const ControlValue *ControlList::find(const ControlId &id) const
+const ControlValue *ControlList::find(unsigned int id) const
 {
-	const auto iter = controls_.find(&id);
+	const auto iter = controls_.find(id);
 	if (iter == controls_.end()) {
 		LOG(Controls, Error)
-			<< "Control " << id.name() << " not found";
+			<< "Control " << utils::hex(id) << " not found";
 
 		return nullptr;
 	}
@@ -773,16 +758,16 @@  const ControlValue *ControlList::find(const ControlId &id) const
 	return &iter->second;
 }
 
-ControlValue *ControlList::find(const ControlId &id)
+ControlValue *ControlList::find(unsigned int id)
 {
 	if (validator_ && !validator_->validate(id)) {
 		LOG(Controls, Error)
-			<< "Control " << id.name()
+			<< "Control " << utils::hex(id)
 			<< " is not valid for " << validator_->name();
 		return nullptr;
 	}
 
-	return &controls_[&id];
+	return &controls_[id];
 }
 
 } /* namespace libcamera */
diff --git a/src/libcamera/include/camera_controls.h b/src/libcamera/include/camera_controls.h
index 998a2d155a44..265c1fe379db 100644
--- a/src/libcamera/include/camera_controls.h
+++ b/src/libcamera/include/camera_controls.h
@@ -19,7 +19,7 @@  public:
 	CameraControlValidator(Camera *camera);
 
 	const std::string &name() const override;
-	bool validate(const ControlId &id) const override;
+	bool validate(unsigned int id) const override;
 
 private:
 	Camera *camera_;
diff --git a/src/libcamera/include/control_validator.h b/src/libcamera/include/control_validator.h
index 3598b18f2f26..f1c9110b158f 100644
--- a/src/libcamera/include/control_validator.h
+++ b/src/libcamera/include/control_validator.h
@@ -19,7 +19,7 @@  public:
 	virtual ~ControlValidator() {}
 
 	virtual const std::string &name() const = 0;
-	virtual bool validate(const ControlId &id) const = 0;
+	virtual bool validate(unsigned int id) const = 0;
 };
 
 } /* namespace libcamera */
diff --git a/src/libcamera/pipeline/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo.cpp
index 45448d6f8c05..522229241ffb 100644
--- a/src/libcamera/pipeline/uvcvideo.cpp
+++ b/src/libcamera/pipeline/uvcvideo.cpp
@@ -231,7 +231,7 @@  int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
 	ControlList controls(data->video_->controls());
 
 	for (auto it : request->controls()) {
-		const ControlId &id = *it.first;
+		unsigned int id = it.first;
 		ControlValue &value = it.second;
 
 		if (id == controls::Brightness) {
@@ -250,7 +250,7 @@  int PipelineHandlerUVC::processControls(UVCCameraData *data, Request *request)
 
 	for (const auto &ctrl : controls)
 		LOG(UVC, Debug)
-			<< "Setting control " << ctrl.first->name()
+			<< "Setting control " << utils::hex(ctrl.first)
 			<< " to " << ctrl.second.toString();
 
 	int ret = data->video_->setControls(&controls);
diff --git a/src/libcamera/pipeline/vimc.cpp b/src/libcamera/pipeline/vimc.cpp
index e6ab6a085824..06664fed42e7 100644
--- a/src/libcamera/pipeline/vimc.cpp
+++ b/src/libcamera/pipeline/vimc.cpp
@@ -298,7 +298,7 @@  int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
 	ControlList controls(data->sensor_->controls());
 
 	for (auto it : request->controls()) {
-		const ControlId &id = *it.first;
+		unsigned int id = it.first;
 		ControlValue &value = it.second;
 
 		if (id == controls::Brightness)
@@ -311,7 +311,7 @@  int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
 
 	for (const auto &ctrl : controls)
 		LOG(VIMC, Debug)
-			<< "Setting control " << ctrl.first->name()
+			<< "Setting control " << utils::hex(ctrl.first)
 			<< " to " << ctrl.second.toString();
 
 	int ret = data->sensor_->setControls(&controls);
diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp
index a2b0d891b12f..0452f801029c 100644
--- a/src/libcamera/v4l2_device.cpp
+++ b/src/libcamera/v4l2_device.cpp
@@ -176,15 +176,15 @@  int V4L2Device::getControls(ControlList *ctrls)
 
 	unsigned int i = 0;
 	for (const auto &ctrl : *ctrls) {
-		const ControlId *id = ctrl.first;
-		const auto iter = controls_.find(id->id());
+		unsigned int id = ctrl.first;
+		const auto iter = controls_.find(id);
 		if (iter == controls_.end()) {
 			LOG(V4L2, Error)
-				<< "Control '" << id->name() << "' not found";
+				<< "Control " << utils::hex(id) << " not found";
 			return -EINVAL;
 		}
 
-		v4l2Ctrls[i].id = id->id();
+		v4l2Ctrls[i].id = id;
 		i++;
 	}
 
@@ -250,19 +250,19 @@  int V4L2Device::setControls(ControlList *ctrls)
 
 	unsigned int i = 0;
 	for (const auto &ctrl : *ctrls) {
-		const ControlId *id = ctrl.first;
-		const auto iter = controls_.find(id->id());
+		unsigned int id = ctrl.first;
+		const auto iter = controls_.find(id);
 		if (iter == controls_.end()) {
 			LOG(V4L2, Error)
-				<< "Control '" << id->name() << "' not found";
+				<< "Control " << utils::hex(id) << " not found";
 			return -EINVAL;
 		}
 
-		v4l2Ctrls[i].id = id->id();
+		v4l2Ctrls[i].id = id;
 
 		/* Set the v4l2_ext_control value for the write operation. */
 		const ControlValue &value = ctrl.second;
-		switch (id->type()) {
+		switch (iter->first->type()) {
 		case ControlTypeInteger64:
 			v4l2Ctrls[i].value64 = value.get<int64_t>();
 			break;
@@ -403,10 +403,11 @@  void V4L2Device::updateControls(ControlList *ctrls,
 			break;
 
 		const struct v4l2_ext_control *v4l2Ctrl = &v4l2Ctrls[i];
-		const ControlId *id = ctrl.first;
+		unsigned int id = ctrl.first;
 		ControlValue &value = ctrl.second;
 
-		switch (id->type()) {
+		const auto iter = controls_.find(id);
+		switch (iter->first->type()) {
 		case ControlTypeInteger64:
 			value.set<int64_t>(v4l2Ctrl->value64);
 			break;