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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2023, Linaro Ltd
*
* swisp_stats.h - Statistics data format used by the software ISP and software IPA
*/
#pragma once
#include <array>
#include <stdint.h>
namespace libcamera {
/**
* \brief Struct that holds the statistics for the Software ISP
*
* The struct value types are large enough to not overflow.
* Should they still overflow for some reason, no check is performed and they
* wrap around.
*/
struct SwIspStats {
/**
* \brief Holds the sum of all sampled red pixels
*/
uint64_t sumR_;
/**
* \brief Holds the sum of all sampled green pixels
*/
uint64_t sumG_;
/**
* \brief Holds the sum of all sampled blue pixels
*/
uint64_t sumB_;
/**
* \brief Number of bins in the yHistogram
*/
static constexpr unsigned int kYHistogramSize = 64;
/**
* \brief Type of the histogram.
*/
using Histogram = std::array<uint32_t, kYHistogramSize>;
/**
* \brief A histogram of luminance values
*/
Histogram yHistogram;
};
} /* namespace libcamera */
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