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77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "driver/isp_types.h"
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#include "hal/color_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief ISP gamma Correction configuration
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*
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* @note This function is allowed to be called before or after esp_isp_gamma_enable(),
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* but it only takes effect until esp_isp_gamma_enable() is called
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*
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* @param[in] proc Processor handle
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* @param[in] component One of the R/G/B components, color_component_t
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* @param[in] pts Group of points that describe the desired gamma correction curve;<br>
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* Passing in NULL to reset to default parameters (no correction)
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*
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* @return
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* - ESP_OK On success
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* - ESP_ERR_INVALID_ARG If the combination of arguments is invalid
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*/
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esp_err_t esp_isp_gamma_configure(isp_proc_handle_t proc, color_component_t component, const isp_gamma_curve_points_t *pts);
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/**
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* @brief Enable ISP gamma function
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*
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* @param[in] proc Processor handle
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*
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* @return
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* - ESP_OK On success
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* - ESP_ERR_INVALID_ARG If the combination of arguments is invalid.
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*/
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esp_err_t esp_isp_gamma_enable(isp_proc_handle_t proc);
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/**
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* @brief Disable ISP gamma function
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*
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* @param[in] proc Processor handle
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*
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* @return
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* - ESP_OK On success
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* - ESP_ERR_INVALID_ARG If the combination of arguments is invalid.
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*/
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esp_err_t esp_isp_gamma_disable(isp_proc_handle_t proc);
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/**
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* @brief Helper function to fill the isp_gamma_curve_points_t structure, giving the mathematical function of the desired gamma correction curve
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*
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* @note The raw values are sampled with equal spacing
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*
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* @param[in] gamma_correction_operator The desired gamma correction curve y = f(x).<br>
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* x is the raw value, in [0, 256]; y is the gamma-corrected value, in [0, 256];<br>
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* y can be equal to 256 only if x = 256. For any other x value, y should be always less than 256.
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* @param[out] pts Pointer to the to-be-filled isp_gamma_curve_points_t structure
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*
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* @return
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* - ESP_OK On success
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* - ESP_ERR_INVALID_ARG If the combination of arguments is invalid.
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*/
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esp_err_t esp_isp_gamma_fill_curve_points(uint32_t (* gamma_correction_operator)(uint32_t), isp_gamma_curve_points_t *pts);
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#ifdef __cplusplus
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}
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#endif
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