aboutsummaryrefslogtreecommitdiff
path: root/spaghetti-monster/fsm-channels.c
diff options
context:
space:
mode:
Diffstat (limited to 'spaghetti-monster/fsm-channels.c')
-rw-r--r--spaghetti-monster/fsm-channels.c357
1 files changed, 0 insertions, 357 deletions
diff --git a/spaghetti-monster/fsm-channels.c b/spaghetti-monster/fsm-channels.c
deleted file mode 100644
index cc78536..0000000
--- a/spaghetti-monster/fsm-channels.c
+++ /dev/null
@@ -1,357 +0,0 @@
-// fsm-channels.c: Channel mode functions for SpaghettiMonster.
-// Copyright (C) 2023 Selene ToyKeeper
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#pragma once
-
-#include "fsm-ramping.h"
-
-
-#if NUM_CHANNEL_MODES > 1
-void set_channel_mode(uint8_t mode) {
- if (mode == channel_mode) return; // abort if nothing to do
-
- uint8_t cur_level = actual_level;
-
- // turn off old LEDs before changing channel
- set_level(0);
-
- // change the channel
- channel_mode = mode;
-
- // update the LEDs
- set_level(cur_level);
-}
-#endif // if NUM_CHANNEL_MODES > 1
-
-
-#ifdef USE_CALC_2CH_BLEND
-// calculate a "tint ramp" blend between 2 channels
-// results are placed in *warm and *cool vars
-// brightness : total amount of light units to distribute
-// top : maximum allowed brightness per channel
-// blend : ratio between warm and cool (0 = warm, 128 = 50%, 255 = cool)
-void calc_2ch_blend(
- PWM_DATATYPE *warm,
- PWM_DATATYPE *cool,
- PWM_DATATYPE brightness,
- PWM_DATATYPE top,
- uint8_t blend) {
-
- #ifndef TINT_RAMPING_CORRECTION
- #define TINT_RAMPING_CORRECTION 26 // 140% brightness at middle tint
- #endif
-
- // calculate actual PWM levels based on a single-channel ramp
- // and a blend value
- PWM_DATATYPE warm_PWM, cool_PWM;
- PWM_DATATYPE2 base_PWM = brightness;
-
- #if defined(TINT_RAMPING_CORRECTION) && (TINT_RAMPING_CORRECTION > 0)
- uint8_t level = actual_level - 1;
-
- // middle tints sag, so correct for that effect
- // by adding extra power which peaks at the middle tint
- // (correction is only necessary when PWM is fast)
- if (level > HALFSPEED_LEVEL) {
- base_PWM = brightness
- + ((((PWM_DATATYPE2)brightness) * TINT_RAMPING_CORRECTION / 64)
- * triangle_wave(blend) / 255);
- }
- // fade the triangle wave out when above 100% power,
- // so it won't go over 200%
- if (brightness > top) {
- base_PWM -= 2 * (
- ((brightness - top) * TINT_RAMPING_CORRECTION / 64)
- * triangle_wave(blend) / 255
- );
- }
- // guarantee no more than 200% power
- if (base_PWM > (top << 1)) { base_PWM = top << 1; }
- #endif
-
- cool_PWM = (((PWM_DATATYPE2)blend * (PWM_DATATYPE2)base_PWM) + 127) / 255;
- warm_PWM = base_PWM - cool_PWM;
- // when running at > 100% power, spill extra over to other channel
- if (cool_PWM > top) {
- warm_PWM += (cool_PWM - top);
- cool_PWM = top;
- } else if (warm_PWM > top) {
- cool_PWM += (warm_PWM - top);
- warm_PWM = top;
- }
-
- *warm = warm_PWM;
- *cool = cool_PWM;
-}
-#endif // ifdef USE_CALC_2CH_BLEND
-
-
-#ifdef USE_HSV2RGB
-RGB_t hsv2rgb(uint8_t h, uint8_t s, uint16_t v) {
- RGB_t color;
-
- if (s == 0) { // grey
- color.r = color.g = color.b = v;
- return color;
- }
-
- uint8_t region;
- uint16_t fpart;
- uint16_t high, low, rising, falling;
-
- // hue has 6 segments, 0-5
- region = ((uint16_t)h * 6) >> 8;
- // find remainder part, make it from 0-255
- fpart = ((uint16_t)h * 6) - (region << 8);
-
- // calculate graph segments, doing integer multiplication
- // TODO: calculate 16-bit results, not 8-bit
- high = v;
- low = ((uint32_t)v * (255 - s)) >> 8;
- // TODO: use a cosine crossfade instead of linear
- // (because it looks better and feels more natural)
- falling = ((uint32_t)v * (255 - ((s * fpart) >> 8))) >> 8;
- rising = ((uint32_t)v * (255 - ((s * (255 - fpart)) >> 8))) >> 8;
-
- // default floor
- color.r = low;
- color.g = low;
- color.b = low;
-
- // assign graph shapes based on color cone region
- switch (region) {
- case 0:
- color.r = high;
- color.g = rising;
- //color.b = low;
- break;
- case 1:
- color.r = falling;
- color.g = high;
- //color.b = low;
- break;
- case 2:
- //color.r = low;
- color.g = high;
- color.b = rising;
- break;
- case 3:
- //color.r = low;
- color.g = falling;
- color.b = high;
- break;
- case 4:
- color.r = rising;
- //color.g = low;
- color.b = high;
- break;
- default:
- color.r = high;
- //color.g = low;
- color.b = falling;
- break;
- }
-
- return color;
-}
-#endif // ifdef USE_HSV2RGB
-
-
-///// Common set_level_*() functions shared by multiple lights /////
-// (unique lights should use their own,
-// but these common versions cover most of the common hardware designs)
-
-// TODO: upgrade some older lights to dynamic PWM
-// TODO: 1ch w/ dynamic PWM
-// TODO: 1ch w/ dynamic PWM and opamp enable pins?
-// TODO: 2ch stacked w/ dynamic PWM
-// TODO: 2ch stacked w/ dynamic PWM and opamp enable pins?
-
-
-#ifdef USE_SET_LEVEL_1CH
-// single set of LEDs with 1 power channel
-void set_level_1ch(uint8_t level) {
- if (level == 0) {
- LOW_PWM_LVL = 0;
- } else {
- level --; // PWM array index = level - 1
- LOW_PWM_LVL = PWM_GET(low_pwm_levels, level);
- }
-}
-#endif
-
-
-#ifdef USE_SET_LEVEL_2CH_STACKED
-// single set of LEDs with 2 stacked power channels, DDFET+1 or DDFET+linear
-void set_level_2ch_stacked(uint8_t level) {
- if (level == 0) {
- LOW_PWM_LVL = 0;
- HIGH_PWM_LVL = 0;
- } else {
- level --; // PWM array index = level - 1
- LOW_PWM_LVL = PWM_GET(low_pwm_levels, level);
- HIGH_PWM_LVL = PWM_GET(high_pwm_levels, level);
- }
-}
-#endif
-
-
-#ifdef USE_SET_LEVEL_3CH_STACKED
-// single set of LEDs with 3 stacked power channels, like DDFET+N+1
-void set_level_3ch_stacked(uint8_t level) {
- if (level == 0) {
- LOW_PWM_LVL = 0;
- MED_PWM_LVL = 0;
- HIGH_PWM_LVL = 0;
- } else {
- level --; // PWM array index = level - 1
- LOW_PWM_LVL = PWM_GET(low_pwm_levels, level);
- MED_PWM_LVL = PWM_GET(med_pwm_levels, level);
- HIGH_PWM_LVL = PWM_GET(high_pwm_levels, level);
- }
-}
-#endif
-
-
-#if defined(USE_TINT_RAMPING) && (!defined(TINT_RAMP_TOGGLE_ONLY))
-void set_level_2ch_blend() {
- #ifndef TINT_RAMPING_CORRECTION
- #define TINT_RAMPING_CORRECTION 26 // 140% brightness at middle tint
- #endif
-
- // calculate actual PWM levels based on a single-channel ramp
- // and a global tint value
- //PWM_DATATYPE brightness = PWM_GET(pwm1_levels, level);
- uint16_t brightness = PWM1_LVL;
- uint16_t warm_PWM, cool_PWM;
- #ifdef USE_STACKED_DYN_PWM
- uint16_t top = PWM1_TOP;
- //uint16_t top = PWM_GET(pwm_tops, actual_level-1);
- #else
- const uint16_t top = PWM_TOP;
- #endif
-
- // auto-tint modes
- uint8_t mytint;
- uint8_t level = actual_level - 1;
- #if 1
- // perceptual by ramp level
- if (tint == 0) { mytint = 255 * (uint16_t)level / RAMP_SIZE; }
- else if (tint == 255) { mytint = 255 - (255 * (uint16_t)level / RAMP_SIZE); }
- #else
- // linear with power level
- //if (tint == 0) { mytint = brightness; }
- //else if (tint == 255) { mytint = 255 - brightness; }
- #endif
- // stretch 1-254 to fit 0-255 range (hits every value except 98 and 198)
- else { mytint = (tint * 100 / 99) - 1; }
-
- PWM_DATATYPE2 base_PWM = brightness;
- #if defined(TINT_RAMPING_CORRECTION) && (TINT_RAMPING_CORRECTION > 0)
- // middle tints sag, so correct for that effect
- // by adding extra power which peaks at the middle tint
- // (correction is only necessary when PWM is fast)
- if (level > HALFSPEED_LEVEL) {
- base_PWM = brightness
- + ((((PWM_DATATYPE2)brightness) * TINT_RAMPING_CORRECTION / 64) * triangle_wave(mytint) / 255);
- }
- // fade the triangle wave out when above 100% power,
- // so it won't go over 200%
- if (brightness > top) {
- base_PWM -= 2 * (
- ((brightness - top) * TINT_RAMPING_CORRECTION / 64)
- * triangle_wave(mytint) / 255
- );
- }
- // guarantee no more than 200% power
- if (base_PWM > (top << 1)) { base_PWM = top << 1; }
- #endif
-
- cool_PWM = (((PWM_DATATYPE2)mytint * (PWM_DATATYPE2)base_PWM) + 127) / 255;
- warm_PWM = base_PWM - cool_PWM;
- // when running at > 100% power, spill extra over to other channel
- if (cool_PWM > top) {
- warm_PWM += (cool_PWM - top);
- cool_PWM = top;
- } else if (warm_PWM > top) {
- cool_PWM += (warm_PWM - top);
- warm_PWM = top;
- }
-
- TINT1_LVL = warm_PWM;
- TINT2_LVL = cool_PWM;
-
- // disable the power channel, if relevant
- #ifdef LED_ENABLE_PIN
- if (warm_PWM)
- LED_ENABLE_PORT |= (1 << LED_ENABLE_PIN);
- else
- LED_ENABLE_PORT &= ~(1 << LED_ENABLE_PIN);
- #endif
- #ifdef LED2_ENABLE_PIN
- if (cool_PWM)
- LED2_ENABLE_PORT |= (1 << LED2_ENABLE_PIN);
- else
- LED2_ENABLE_PORT &= ~(1 << LED2_ENABLE_PIN);
- #endif
-}
-#endif // ifdef USE_TINT_RAMPING
-
-
-#ifdef USE_GRADUAL_TICK_1CH
-void gradual_tick_1ch() {
- GRADUAL_TICK_SETUP();
-
- GRADUAL_ADJUST_1CH(low_pwm_levels, LOW_PWM_LVL);
-
- // did we go far enough to hit the next defined ramp level?
- // if so, update the main ramp level tracking var
- if ((LOW_PWM_LVL == PWM_GET(low_pwm_levels, gt)))
- {
- GRADUAL_IS_ACTUAL();
- }
-}
-#endif
-
-
-#ifdef USE_GRADUAL_TICK_2CH_STACKED
-void gradual_tick_2ch_stacked() {
- GRADUAL_TICK_SETUP();
-
- GRADUAL_ADJUST(low_pwm_levels, LOW_PWM_LVL, PWM_TOP);
- GRADUAL_ADJUST_1CH(high_pwm_levels, HIGH_PWM_LVL);
-
- // did we go far enough to hit the next defined ramp level?
- // if so, update the main ramp level tracking var
- if ( (LOW_PWM_LVL == PWM_GET(low_pwm_levels, gt))
- && (HIGH_PWM_LVL == PWM_GET(high_pwm_levels, gt))
- )
- {
- GRADUAL_IS_ACTUAL();
- }
-}
-#endif
-
-
-#ifdef USE_GRADUAL_TICK_3CH_STACKED
-void gradual_tick_3ch_stacked() {
- GRADUAL_TICK_SETUP();
-
- GRADUAL_ADJUST(low_pwm_levels, LOW_PWM_LVL, PWM_TOP);
- GRADUAL_ADJUST(med_pwm_levels, MED_PWM_LVL, PWM_TOP);
- GRADUAL_ADJUST_1CH(high_pwm_levels, HIGH_PWM_LVL);
-
- // did we go far enough to hit the next defined ramp level?
- // if so, update the main ramp level tracking var
- if ( (LOW_PWM_LVL == PWM_GET(low_pwm_levels, gt))
- && (MED_PWM_LVL == PWM_GET(med_pwm_levels, gt))
- && (HIGH_PWM_LVL == PWM_GET(high_pwm_levels, gt))
- )
- {
- GRADUAL_IS_ACTUAL();
- }
-}
-#endif
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-28 20:26:56 +0000