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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-03-20 23:35:36 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-03-23 19:15:55 +0200
commitc7dd9655e5e0a95e3a776eb92f54841a68b82331 (patch)
tree53f6661b8a483423c6770f34829e4f6202845e0b /utils/raspberrypi/ctt/ctt_geq.py
parent976e01d59beecb7c1eb79396e8ec1f8d066fa355 (diff)
meson: Add configuration option to build the cam application
Building the cam application isn't always desired, for instance in a production environment that only needs the libcamera library. Add a meson option to disable it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'utils/raspberrypi/ctt/ctt_geq.py')
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * bound_method.h - Method bind and invocation
 */

#pragma once

#include <memory>
#include <tuple>
#include <type_traits>
#include <utility>

namespace libcamera {

class Object;

enum ConnectionType {
	ConnectionTypeAuto,
	ConnectionTypeDirect,
	ConnectionTypeQueued,
	ConnectionTypeBlocking,
};

class BoundMethodPackBase
{
public:
	virtual ~BoundMethodPackBase() = default;
};

template<typename R, typename... Args>
class BoundMethodPack : public BoundMethodPackBase
{
public:
	BoundMethodPack(const Args &... args)
		: args_(args...)
	{
	}

	R returnValue()
	{
		return ret_;
	}

	std::tuple<typename std::remove_reference_t<Args>...> args_;
	R ret_;
};

template<typename... Args>
class BoundMethodPack<void, Args...> : public BoundMethodPackBase
{
public:
	BoundMethodPack(const Args &... args)
		: args_(args...)
	{
	}

	void returnValue()
	{
	}

	std::tuple<typename std::remove_reference_t<Args>...> args_;
};

class BoundMethodBase
{
public:
	BoundMethodBase(void *obj, Object *object, ConnectionType type)
		: obj_(obj), object_(object), connectionType_(type)
	{
	}
	virtual ~BoundMethodBase() = default;

	template<typename T, typename std::enable_if_t<!std::is_same<Object, T>::value> * = nullptr>
	bool match(T *obj) { return obj == obj_; }
	bool match(Object *object) { return object == object_; }

	Object *object() const { return object_; }

	virtual void invokePack(BoundMethodPackBase *pack) = 0;

protected:
	bool activatePack(std::shared_ptr<BoundMethodPackBase> pack,
			  bool deleteMethod);

	void *obj_;
	Object *object_;

private:
	ConnectionType connectionType_;
};

template<typename R, typename... Args>
class BoundMethodArgs : public BoundMethodBase
{
public:
	using PackType = BoundMethodPack<R, Args...>;

private:
	template<std::size_t... I, typename T = R>
	std::enable_if_t<!std::is_void<T>::value, void>
	invokePack(BoundMethodPackBase *pack, std::index_sequence<I...>)
	{
		PackType *args = static_cast<PackType *>(pack);
		args->ret_ = invoke(std::get<I>(args->args_)...);
	}

	template<std::size_t... I, typename T = R>
	std::enable_if_t<std::is_void<T>::value, void>
	invokePack(BoundMethodPackBase *pack, std::index_sequence<I...>)
	{
		/* args is effectively unused when the sequence I is empty. */
		PackType *args [[gnu::unused]] = static_cast<PackType *>(pack);
		invoke(std::get<I>(args->args_)...);
	}

public:
	BoundMethodArgs(void *obj, Object *object, ConnectionType type)
		: BoundMethodBase(obj, object, type) {}

	void invokePack(BoundMethodPackBase *pack) override