c683e81947
Add a CPU based SwStats implementation for SoftwareISP / SoftIPA use. This implementation offers a configure function + functions to gather statistics on a line by line basis. This allows CPU based software debayering to call into interleave debayering and statistics gathering on a line by line basis while the input data is still hot in the cache. This implementation also allows specifying a window over which to gather statistics instead of processing the whole frame. Doxygen documentation by Dennis Bonke. Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # sc8280xp Lenovo x13s Tested-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Milan Zamazal <mzamazal@redhat.com> Co-developed-by: Andrey Konovalov <andrey.konovalov@linaro.org> Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org> Co-developed-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Pavel Machek <pavel@ucw.cz> Co-developed-by: Dennis Bonke <admin@dennisbonke.com> Signed-off-by: Dennis Bonke <admin@dennisbonke.com> Co-developed-by: Marttico <g.martti@gmail.com> Signed-off-by: Marttico <g.martti@gmail.com> Co-developed-by: Toon Langendam <t.langendam@gmail.com> Signed-off-by: Toon Langendam <t.langendam@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
46 lines
982 B
C++
46 lines
982 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2023, Linaro Ltd
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*
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* swisp_stats.h - Statistics data format used by the software ISP and software IPA
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*/
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#pragma once
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#include <array>
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#include <stdint.h>
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namespace libcamera {
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/**
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* \brief Struct that holds the statistics for the Software ISP
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*
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* The struct value types are large enough to not overflow.
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* Should they still overflow for some reason, no check is performed and they
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* wrap around.
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*/
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struct SwIspStats {
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/**
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* \brief Holds the sum of all sampled red pixels
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*/
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uint64_t sumR_;
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/**
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* \brief Holds the sum of all sampled green pixels
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*/
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uint64_t sumG_;
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/**
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* \brief Holds the sum of all sampled blue pixels
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*/
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uint64_t sumB_;
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/**
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* \brief Number of bins in the yHistogram
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*/
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static constexpr unsigned int kYHistogramSize = 16;
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/**
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* \brief A histogram of luminance values
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*/
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std::array<uint32_t, kYHistogramSize> yHistogram;
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};
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} /* namespace libcamera */
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