lsc_table.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2026, Ideas On Board
 *
 * Table-based Lsc implementation
 */
#pragma once
 
#include <vector>
 
#include <libcamera/base/log.h>
#include <libcamera/base/span.h>
 
#include <libcamera/geometry.h>
 
#include "libcamera/internal/value_node.h"
 
#include "lsc_base.h"
 
namespace libcamera {
 
LOG_DECLARE_CATEGORY(LscTable)
 
namespace ipa {
 
class LscTable : public LscImplementation
{
public:
    int parseLscData(const ValueNode &sets,
             const LscDescriptor &descriptor) override;
 
    LscImplementation::ComponentsMap
    sampleForCrop([[maybe_unused]] const Rectangle &cropRectangle,
              [[maybe_unused]] std::vector<double> xPos,
              [[maybe_unused]] std::vector<double> yPos) override
    {
        LOG(LscTable, Warning)
            << "Tabular LSC data doesn't support resampling";
        return lscData_;
    }
 
private:
    int parseLscComponent(const ValueNode &yamlSet,
                  unsigned int ct, const LscDescriptor &descriptor);
    std::vector<float> parseTable(const ValueNode &tuningData,
                     const char *prop,
                     unsigned int numHSamples,
                     unsigned int numVSamples);
 
    LscImplementation::ComponentsMap lscData_;
};
 
} /* namespace ipa */
 
} /* namespace libcamera */