ipa_context.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2021, Google Inc.
 *
 * IPU3 IPA Context
 *
 */
 
#pragma once
 
#include <linux/intel-ipu3.h>
 
#include <libcamera/base/utils.h>
 
#include <libcamera/controls.h>
#include <libcamera/geometry.h>
 
#include <libipa/fc_queue.h>
 
namespace libcamera {
 
namespace ipa::ipu3 {
 
struct IPASessionConfiguration {
    struct {
        ipu3_uapi_grid_config bdsGrid;
        Size bdsOutputSize;
        uint32_t stride;
    } grid;
 
    struct {
        ipu3_uapi_grid_config afGrid;
    } af;
 
    struct {
        utils::Duration minExposureTime;
        utils::Duration maxExposureTime;
        double minAnalogueGain;
        double maxAnalogueGain;
    } agc;
 
    struct {
        int32_t defVBlank;
        utils::Duration lineDuration;
        Size size;
    } sensor;
};
 
struct IPAActiveState {
    struct {
        uint32_t focus;
        double maxVariance;
        bool stable;
    } af;
 
    struct {
        uint32_t exposure;
        double gain;
        uint32_t constraintMode;
        uint32_t exposureMode;
    } agc;
 
    struct {
        struct {
            double red;
            double green;
            double blue;
        } gains;
 
        double temperatureK;
    } awb;
 
    struct {
        double gamma;
        struct ipu3_uapi_gamma_corr_lut gammaCorrection;
    } toneMapping;
};
 
struct IPAFrameContext : public FrameContext {
    struct {
        uint32_t exposure;
        double gain;
    } sensor;
};
 
struct IPAContext {
    IPAContext(unsigned int frameContextSize)
        : frameContexts(frameContextSize)
    {
    }
 
    IPASessionConfiguration configuration;
    IPAActiveState activeState;
 
    FCQueue<IPAFrameContext> frameContexts;
 
    ControlInfoMap::Map ctrlMap;
};
 
} /* namespace ipa::ipu3 */
 
} /* namespace libcamera*/