174 lines
7.2 KiB
C
174 lines
7.2 KiB
C
// Copyright 2021 Victor Toni (@vitoni)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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/**
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* States reflecting the state of the keyboard.
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* Dependeing on these states various effects can set for the RGB matrix.
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*/
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enum states {
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REGULAR //!< when in regular use
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#if defined(RGB_IDLE_TIMEOUT)
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,IDLE_FADE_OUT //!< when started idling
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,IDLE //!< when idling
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#endif
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#if defined(RGB_FADE_IN) || defined(RGB_IDLE_TIMEOUT)
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,FADE_IN //!< when starting initially or before going back to REGULAR
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#endif
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#if defined(RGB_DISABLE_WITH_FADE_OUT)
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,FADE_OUT //!< before supending
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#endif
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,SUSPENDED //!< expecting to be suspended by RGB_MATRIX_TIMEOUT any time
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};
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/**
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* @brief Scales down `g_rgb_timer` so that it can be used for RGB effects.
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* @details Usually these calculations aredone internally by some RGB effects.
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This method exposed to scaling so that all effects to have same timebase. If `rgb_matrix_config.speed` all effects are affected the same.
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* @param[in] factor The factor can be used to speed up some operations in relation to others.
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* @return scaled down timer taking into account the given factor
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* @see g_rgb_timer
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* @see rgb_matrix_config.speed
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*/
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uint8_t rgb_time_2_scale_w_factor(const uint8_t factor);
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/**
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* @brief Scales down `g_rgb_timer` so that it can be used for RGB effects.
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* @return scaled down timer
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* @see rgb_time_2_scale_w_factor()
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*/
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uint8_t rgb_time_2_scale(void);
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/**
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* @brief Inverse function to calculate time required to execute `timer` steps.
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* @details This method allows calculation of the time needed to execute N `timer`steps.
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Usefull when using a scaled down time but requiring the time needed to perform these steps.
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* @param[in] scaled_time scaled down timer to inverse to time
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* @return time corresponding to scaled down time
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* @see rgb_time_2_scale()
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*/
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uint16_t scale_2_rgb_time(const uint8_t scaled_time);
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/**
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* @brief Convenience method to eventually skip the value part when setting HSV.
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* @details When setting HSV this includes the value/brightness.
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As changing brightness might interfer with fading or breathing effects,
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this method can skip the value part of HSV (depending on the preprocessor flag: RGB_FADE_IN).
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* @param[in] hue Hue
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* @param[in] sat Saturation
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* @param[in] hue Value (brightness)
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* @see rgb_matrix_sethsv_noeeprom()
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*/
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void rgb_matrix_sethsv_noeeprom_user(const uint16_t hue, const uint8_t sat, const uint8_t val);
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#if defined(RGB_FADE_IN) || defined(RGB_DISABLE_WITH_FADE_OUT) || defined(RGB_IDLE_TIMEOUT)
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# if defined(RGB_MATRIX_MAXIMUM_BRIGHTNESS)
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# if (RGB_MATRIX_MAXIMUM_BRIGHTNESS) < 1
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# error "RGB_MATRIX_MAXIMUM_BRIGHTNESS must not be less than ONE"
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# endif
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# if UINT8_MAX < (RGB_MATRIX_MAXIMUM_BRIGHTNESS)
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# error "RGB_MATRIX_MAXIMUM_BRIGHTNESS must not be larger than UINT8_MAX"
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# endif
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# else
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# define RGB_MATRIX_MAXIMUM_BRIGHTNESS 200
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# endif
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#endif
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#if defined(RGB_FADE_IN) || defined(RGB_IDLE_TIMEOUT)
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/**
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* @brief Calculates the time offset required by fade in.
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* @details Using an arbitrary timer any point on the sine curve might be pointed to.
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* The offset is calculated so that
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* a) the point is at the lowest point in the curve and the curve is raising
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* b) the point is near the current brightness (eg. fade in might be called while fading out and the lowest value has not yet been reached).
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* @param[in] time Current time usually represented by a(usually scaled) timer
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* @return Offset required so that time matches the current brightness
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*/
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uint8_t calc_fade_in_offset(const uint8_t time);
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/**
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* @brief Increases value/brightness until reaching RGB_MATRIX_MAXIMUM_BRIGHTNESS based on given timer.
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* @param[in] time A (usually scaled) timer
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* @return Returns `true` if RGB_MATRIX_MAXIMUM_BRIGHTNESS has been reached, `false` otherwise.
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*/
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bool fade_in(const uint8_t time);
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#endif
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#if defined(RGB_DISABLE_WITH_FADE_OUT)
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# if !defined(RGB_MATRIX_TIMEOUT)
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# warning "RGB_DISABLE_WITH_FADE_OUT expects RGB_MATRIX_TIMEOUT to be defined"
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# endif
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#endif
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#if defined(RGB_DISABLE_WITH_FADE_OUT) || defined(RGB_IDLE_TIMEOUT)
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/**
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* @brief Calculates the time offset required by fade out.
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* @details Using an arbitrary timer any point on the Sinus curve might be pointed to.
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* The offest is calculated so that
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* a) the point is at the highest point in the curve and the curve is failing
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* b) the point is near the current brightness (eg. fade out might be called while on breath effect).
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* @param[in] time Current time usually represented by a(usually scaled) timer
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* @return Offset required so that time matches the current brightness
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*/
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uint8_t calc_fade_out_offset(const uint8_t time);
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#endif
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#if defined(RGB_DISABLE_WITH_FADE_OUT)
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/**
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* @brief Decreases value/brightness until reaching 0 based on given timer.
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* @param[in] time A (usually scaled) timer
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* @return Returns `true` if 0 has been reached, `false` otherwise.
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*/
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bool fade_out(const uint8_t time);
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#endif
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#if defined(RGB_IDLE_TIMEOUT)
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# if RGB_IDLE_TIMEOUT < 0
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# error "RGB_IDLE_TIMEOUT must not be less than ZERO"
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# endif
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# if !defined(RGB_IDLE_MINIMUM_BRIGHTNESS)
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// minimum brightness when idling
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# define RGB_IDLE_MINIMUM_BRIGHTNESS (RGB_MATRIX_MAXIMUM_BRIGHTNESS/5)
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# endif
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# if RGB_IDLE_MINIMUM_BRIGHTNESS < 0
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# error "RGB_IDLE_MINIMUM_BRIGHTNESS must not be less than ZERO"
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# endif // RGB_IDLE_MINIMUM_BRIGHTNESS < 0
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# if RGB_MATRIX_MAXIMUM_BRIGHTNESS <= RGB_IDLE_MINIMUM_BRIGHTNESS
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# error "RGB_IDLE_MINIMUM_BRIGHTNESS must be less than RGB_MATRIX_MAXIMUM_BRIGHTNESS"
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# endif // RGB_MATRIX_MAXIMUM_BRIGHTNESS <= RGB_IDLE_MINIMUM_BRIGHTNESS
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/**
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* @brief Decreases value/brightness until reaching `RGB_IDLE_MINIMUM_BRIGHTNESS` based on given timer.
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* @param[in] time A (usually scaled) timer
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* @return Returns `true` if `RGB_IDLE_MINIMUM_BRIGHTNESS` has been reached, `false` otherwise.
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*/
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bool idle_fade_out(const uint8_t time);
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#if defined(RGB_IDLE_BREATHE)
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# if !defined(RGB_IDLE_MAXIMUM_BRIGHTNESS)
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// maximum brightness when idling
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# define RGB_IDLE_MAXIMUM_BRIGHTNESS (RGB_MATRIX_MAXIMUM_BRIGHTNESS*3/5)
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# endif
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# if !(0 <= RGB_IDLE_MAXIMUM_BRIGHTNESS)
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# error "RGB_IDLE_MINIMUM_BRIGHTNESS must not be less than ZERO, was: " RGB_IDLE_MAXIMUM_BRIGHTNESS
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# endif // RGB_IDLE_MAXIMUM_BRIGHTNESS < 0
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# if !(RGB_IDLE_MINIMUM_BRIGHTNESS < RGB_IDLE_MAXIMUM_BRIGHTNESS)
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# error "RGB_IDLE_MINIMUM_BRIGHTNESS must be less than RGB_IDLE_MAXIMUM_BRIGHTNESS"
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# endif // RGB_IDLE_MAXIMUM_BRIGHTNESS <= RGB_IDLE_MINIMUM_BRIGHTNESS
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# if !(RGB_IDLE_MAXIMUM_BRIGHTNESS <= RGB_MATRIX_MAXIMUM_BRIGHTNESS)
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# error "RGB_IDLE_MAXIMUM_BRIGHTNESS must be less than or equal to RGB_MATRIX_MAXIMUM_BRIGHTNESS"
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# endif // RGB_MATRIX_MAXIMUM_BRIGHTNESS <= RGB_IDLE_MAXIMUM_BRIGHTNESS
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/**
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* @brief Changes value/brightness to create a breathing effect based on given timer.
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* @details Brightness will breathe in the range starting from `RGB_IDLE_MINIMUM_BRIGHTNESS` to `RGB_IDLE_MAXIMUM_BRIGHTNESS`.
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* @param[in] time A (usually scaled) timer
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*/
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void idle_breathe(const uint8_t time);
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#endif // RGB_IDLE_BREATHE
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#endif // RGB_IDLE_TIMEOUT
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