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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <vector>
#include "common/common_types.h"
#include "core/hle/service/cam/cam_params.h"
namespace Service::CAM {
struct Resolution;
} // namespace Service::CAM
namespace Camera {
/// An abstract class standing for a camera. All camera implementations should inherit from this.
class CameraInterface {
public:
virtual ~CameraInterface();
/// Starts the camera for video capturing.
virtual void StartCapture() = 0;
/// Stops the camera for video capturing.
virtual void StopCapture() = 0;
/**
* Sets the video resolution from raw CAM service parameters.
* For the meaning of the parameters, please refer to Service::CAM::Resolution. Note that the
* actual camera implementation doesn't need to respect all the parameters. However, the width
* and the height parameters must be respected and be used to determine the size of output
* frames.
* @param resolution The resolution parameters to set
*/
virtual void SetResolution(const Service::CAM::Resolution& resolution) = 0;
/**
* Configures how received frames should be flipped by the camera.
* @param flip Flip applying to the frame
*/
virtual void SetFlip(Service::CAM::Flip flip) = 0;
/**
* Configures what effect should be applied to received frames by the camera.
* @param effect Effect applying to the frame
*/
virtual void SetEffect(Service::CAM::Effect effect) = 0;
/**
* Sets the output format of the all frames received after this function is called.
* @param format Output format of the frame
*/
virtual void SetFormat(Service::CAM::OutputFormat format) = 0;
/**
* Sets the recommended framerate of the camera.
* @param frame_rate Recommended framerate
*/
virtual void SetFrameRate(Service::CAM::FrameRate frame_rate) = 0;
/**
* Receives a frame from the camera.
* This function should be only called between a StartCapture call and a StopCapture call.
* @returns A std::vector<u16> containing pixels. The total size of the vector is width * height
* where width and height are set by a call to SetResolution.
*/
virtual std::vector<u16> ReceiveFrame() = 0;
/**
* Test if the camera is opened successfully and can receive a preview frame. Only used for
* preview. This function should be only called between a StartCapture call and a StopCapture
* call.
* @returns true if the camera is opened successfully and false otherwise
*/
virtual bool IsPreviewAvailable() = 0;
};
} // namespace Camera
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