5f51e2e545
Provide the contrast used in IPA to Bayer parameters. Similar to the calculated Gamma value we will pass this value into the debayer fragment shader for further consumption. Reviewed-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2023-2025 Red Hat Inc.
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*
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* Authors:
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* Hans de Goede <hdegoede@redhat.com>
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*
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* DebayerParams header
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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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#include "libcamera/internal/matrix.h"
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#include "libcamera/internal/vector.h"
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namespace libcamera {
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struct DebayerParams {
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static constexpr unsigned int kRGBLookupSize = 256;
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struct CcmColumn {
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int16_t r;
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int16_t g;
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int16_t b;
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};
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using LookupTable = std::array<uint8_t, kRGBLookupSize>;
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using CcmLookupTable = std::array<CcmColumn, kRGBLookupSize>;
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/*
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* Color lookup tables when CCM is not used.
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*
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* Each color of a debayered pixel is amended by the corresponding
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* value in the given table.
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*/
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LookupTable red;
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LookupTable green;
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LookupTable blue;
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/*
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* Color and gamma lookup tables when CCM is used.
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*
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* Each of the CcmLookupTable's corresponds to a CCM column; together they
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* make a complete 3x3 CCM lookup table. The CCM is applied on debayered
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* pixels and then the gamma lookup table is used to set the resulting
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* values of all the three colors.
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*/
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CcmLookupTable redCcm;
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CcmLookupTable greenCcm;
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CcmLookupTable blueCcm;
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LookupTable gammaLut;
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/*
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* Per frame corrections as calculated by the IPA
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*/
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Matrix<float, 3, 3> ccm;
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RGB<float> blackLevel;
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float gamma;
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float contrast;
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};
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} /* namespace libcamera */
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