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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* camera.h - Camera object interface
*/
#pragma once
#include <memory>
#include <set>
#include <stdint.h>
#include <string>
#include <libcamera/base/class.h>
#include <libcamera/base/flags.h>
#include <libcamera/base/object.h>
#include <libcamera/base/signal.h>
#include <libcamera/controls.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>
#include <libcamera/transform.h>
namespace libcamera {
class FrameBuffer;
class FrameBufferAllocator;
class PipelineHandler;
class Request;
class CameraConfiguration
{
public:
enum Status {
Valid,
Adjusted,
Invalid,
};
using iterator = std::vector<StreamConfiguration>::iterator;
using const_iterator = std::vector<StreamConfiguration>::const_iterator;
virtual ~CameraConfiguration();
void addConfiguration(const StreamConfiguration &cfg);
virtual Status validate() = 0;
StreamConfiguration &at(unsigned int index);
const StreamConfiguration &at(unsigned int index) const;
StreamConfiguration &operator[](unsigned int index)
{
return at(index);
}
const StreamConfiguration &operator[](unsigned int index) const
{
return at(index);
}
iterator begin();
const_iterator begin() const;
iterator end();
const_iterator end() const;
bool empty() const;
std::size_t size() const;
Transform transform;
protected:
CameraConfiguration();
enum class ColorSpaceFlag {
None,
StreamsShareColorSpace,
};
using ColorSpaceFlags = Flags<ColorSpaceFlag>;
Status validateColorSpaces(ColorSpaceFlags flags = ColorSpaceFlag::None);
std::vector<StreamConfiguration> config_;
};
class Camera final : public Object, public std::enable_shared_from_this<Camera>,
public Extensible
{
LIBCAMERA_DECLARE_PRIVATE()
public:
static std::shared_ptr<Camera> create(std::unique_ptr<Private> d,
const std::string &id,
const std::set<Stream *> &streams);
const std::string &id() const;
Signal<Request *, FrameBuffer *> bufferCompleted;
Signal<Request *> requestCompleted;
Signal<> disconnected;
int acquire();
int release();
const ControlInfoMap &controls() const;
const ControlList &properties() const;
const std::set<Stream *> &streams() const;
std::unique_ptr<CameraConfiguration> generateConfiguration(const StreamRoles &roles = {});
int configure(CameraConfiguration *config);
std::unique_ptr<Request> createRequest(uint64_t cookie = 0);
int queueRequest(Request *request);
int start(const ControlList *controls = nullptr);
int stop();
private:
LIBCAMERA_DISABLE_COPY(Camera)
Camera(std::unique_ptr<Private> d, const std::string &id,
const std::set<Stream *> &streams);
~Camera();
friend class PipelineHandler;
void disconnect();
void requestComplete(Request *request);
friend class FrameBufferAllocator;
int exportFrameBuffers(Stream *stream,
std::vector<std::unique_ptr<FrameBuffer>> *buffers);
};
} /* namespace libcamera */
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