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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2021, Google Inc.
*
* ipa_context.h - IPU3 IPA Context
*
*/
#pragma once
#include <array>
#include <linux/intel-ipu3.h>
#include <libcamera/base/utils.h>
#include <libcamera/controls.h>
#include <libcamera/geometry.h>
namespace libcamera {
namespace ipa::ipu3 {
/* Maximum number of frame contexts to be held */
static constexpr uint32_t kMaxFrameContexts = 16;
struct IPASessionConfiguration {
struct {
ipu3_uapi_grid_config bdsGrid;
Size bdsOutputSize;
uint32_t stride;
} grid;
struct {
ipu3_uapi_grid_config afGrid;
} af;
struct {
utils::Duration minShutterSpeed;
utils::Duration maxShutterSpeed;
double minAnalogueGain;
double maxAnalogueGain;
} agc;
struct {
int32_t defVBlank;
utils::Duration lineDuration;
} sensor;
};
struct IPAActiveState {
struct {
uint32_t focus;
double maxVariance;
bool stable;
} af;
struct {
uint32_t exposure;
double gain;
} 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 {
IPAFrameContext();
IPAFrameContext(uint32_t id, const ControlList &reqControls);
struct {
uint32_t exposure;
double gain;
} sensor;
uint32_t frame;
ControlList frameControls;
};
struct IPAContext {
IPASessionConfiguration configuration;
IPAActiveState activeState;
std::array<IPAFrameContext, kMaxFrameContexts> frameContexts;
};
} /* namespace ipa::ipu3 */
} /* namespace libcamera*/
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