enhanced blending modes and antialiasing
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jackw01
parent
758ad73185
commit
4d35218695
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@ -45,14 +45,15 @@ const CRGB colorSchemes[colorSchemeCount][4] = {
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};
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// Clock settings
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const bool useEnhancedRenderer = true;
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const int buttonClickRepeatDelayMs = 1500;
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const int buttonLongPressDelayMs = 300;
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const bool showSecondHand = true;
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const bool twelveHour = true;
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// Serial
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const int serialPortBaudRate = 115200;
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const int debugMessageIntervalMs = 5000;
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const long serialPortBaudRate = 115200;
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const int debugMessageIntervalMs = 2000;
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// Clock modes
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typedef enum {
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@ -70,7 +71,7 @@ const uint8_t minBrightness = 4;
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// Run loop
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const int runLoopIntervalMs = 30;
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// EEPROM Addresses
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// EEPROM addresses
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const uint16_t eepromAddrColorScheme = 0;
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const uint16_t eepromAddrClockMode = 1;
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@ -93,4 +94,11 @@ const uint8_t PROGMEM gamma[] = {
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177,180,182,184,186,189,191,193,196,198,200,203,205,208,210,213,
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215,218,220,223,225,228,231,233,236,239,241,244,247,249,252,255 };
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// LED blend modes
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typedef enum {
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BlendModeOver,
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BlendModeAlpha,
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BlendModeAdd
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} BlendMode;
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#endif
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@ -1,4 +1,5 @@
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//
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// WS2812 LED Analog Clock Firmware
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// Copyright (c) 2016-2018 jackw01
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// This code is distrubuted under the MIT License, see LICENSE for details
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//
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@ -9,8 +10,9 @@
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#include <EEPROM.h>
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#include <RTClib.h>
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#include "config.h"
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#include "constants.h"
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// LED ring and RTC
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CRGB leds[ledRingSize];
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RTC_DS1307 rtc;
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@ -21,6 +23,9 @@ int lastButtonClickTime = 0;
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int lastDebugMessageTime = 0;
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uint8_t currentBrightness;
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uint8_t previousBrightness[16];
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int lastSecondsValue = 0;
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int lastMillisecondsSetTime = 0;
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int milliseconds;
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DateTime now;
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void setup() {
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@ -54,7 +59,7 @@ void setup() {
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void loop() {
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int currentTime = millis();
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if (currentTime - lastLoopTime > runLoopIntervalMs) {
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lastLoopTime = millis();
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lastLoopTime = currentTime;
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// Handle button
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if (digitalRead(pinButton) == LOW && currentTime - lastButtonClickTime > buttonClickRepeatDelayMs) {
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delay(buttonLongPressDelayMs);
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@ -87,8 +92,18 @@ void loop() {
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currentBrightness = sum / 16;
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FastLED.setBrightness(currentBrightness);
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// Show clock
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// Get time and calculate milliseconds value that is synced with the RTC's second count
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now = rtc.now();
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int currentSeconds = now.second();
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if (currentSeconds != lastSecondsValue) {
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lastSecondsValue = currentSeconds;
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milliseconds = 0;
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}
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currentTime = millis();
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milliseconds = (milliseconds + currentTime - lastMillisecondsSetTime);
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lastMillisecondsSetTime = currentTime;
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// Show clock
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clearLeds();
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showClock();
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}
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@ -142,32 +157,32 @@ void printDebugMessage() {
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// Show a ring clock
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void ringClock() {
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int h = hourPosition();
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int h = hourPosition();
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int m = minutePosition();
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int s = secondPosition();
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float s = floatSecondPosition();
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if (m > h) {
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for (int i = 0; i < m; i++) leds[i] = minuteColor();
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for (int i = 0; i < h; i++) leds[i] = hourColor();
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for (int i = 0; i < m; i++) setLed(i, minuteColor(), BlendModeOver);
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for (int i = 0; i < h; i++) setLed(i, hourColor(), BlendModeOver);
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} else {
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for (int i = 0; i < h; i++) leds[i] = hourColor();
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for (int i = 0; i < m; i++) leds[i] = minuteColor();
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for (int i = 0; i < h; i++) setLed(i, hourColor(), BlendModeOver);
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for (int i = 0; i < m; i++) setLed(i, minuteColor(), BlendModeOver);
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}
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if (showSecondHand) leds[s] = secondColor();
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if (showSecondHand) setLed(s, secondColor(), BlendModeAlpha);
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FastLED.show();
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}
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// Show a more traditional dot clock
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void dotClock() {
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int h = hourPosition();
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int m = minutePosition();
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int s = secondPosition();
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float h = floatHourPosition();
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float m = floatMinutePosition();
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float s = floatSecondPosition();
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for (int i = h - 1; i < h + 2; i++) leds[wrap(i)] = hourColor();
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leds[m] = minuteColor();
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if (showSecondHand) [s] = secondColor();
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for (float i = h - 1; i < h + 2; i++) setLed(i, hourColor(), BlendModeAdd);
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setLed(m, minuteColor(), BlendModeAdd);
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if (showSecondHand) setLed(s, secondColor(), BlendModeAdd);
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FastLED.show();
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}
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@ -194,9 +209,9 @@ void timeColorClock() {
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int h = hourPosition();
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int m = minutePosition();
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int s = secondPosition();
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float decHour = decimalHour();
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float fHour = floatHour();
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CRGB pixelColor = CHSV((uint8_t)mapFloat(fmod(20.0 - decHour, 24.0), 0.0, 24.0, 0.0, 255.0), 255, 255);
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CRGB pixelColor = CHSV((uint8_t)mapFloat(fmod(20.0 - fHour, 24.0), 0.0, 24.0, 0.0, 255.0), 255, 255);
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for (int i = h - 1; i < h + 2; i++) leds[wrap(i)] = pixelColor;
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leds[m] = pixelColor;
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@ -235,10 +250,10 @@ int hourPosition() {
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int hour;
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if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
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else hour = now.hour() * (ledRingSize / 12);
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return hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1));;
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return hour + map(now.minute(), 0, 59, 0, (ledRingSize / 12) - 1);
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} else {
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int hour = now.hour() * (ledRingSize / 24);
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return hour + int(map(now.minute(), 0, 59, 0, (ledRingSize / 24) - 1));;
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return hour + map(now.minute(), 0, 59, 0, (ledRingSize / 24) - 1);
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}
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}
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@ -250,10 +265,31 @@ int secondPosition() {
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return map(now.second(), 0, 59, 0, ledRingSize - 1);
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}
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float decimalHour() {
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float floatHour() {
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return (float)now.hour() + mapFloat(now.minute() + mapFloat(now.second(), 0.0, 59.0, 0.0, 1.0), 0.0, 59.0, 0.0, 1.0);
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}
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// Get positions as a float mapped to ring size
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float floatHourPosition() {
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if (twelveHour) {
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int hour;
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if (now.hour() > 12) hour = (now.hour() - 12) * (ledRingSize / 12);
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else hour = now.hour() * (ledRingSize / 12);
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return hour + mapFloat(now.minute(), 0.0, 59.0, 0.0, (ledRingSize / 12.0) - 1.0);
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} else {
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int hour = now.hour() * (ledRingSize / 24);
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return hour + mapFloat(now.minute(), 0, 59, 0, (ledRingSize / 24.0) - 1.0);
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}
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}
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float floatMinutePosition() {
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return mapFloat(now.minute() + ((1 / 60) * now.second()), 0.0, 59.0, 0.0, (float)ledRingSize);
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}
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float floatSecondPosition() {
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return mapFloat(now.second() + (0.001 * milliseconds), 0.0, 60.0, 0.0, (float)ledRingSize);
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}
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// Get colors
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CRGB hourColor() {
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return colorSchemes[colorScheme][0];
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@ -272,11 +308,48 @@ void clearLeds() {
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for (int i = 0; i < ledRingSize; i++) leds[i] = CRGB(0, 0, 0);
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}
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// Enhanced additive blending
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// Set LED(s) at a position with enhanced rendering
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void setLed(float position, CRGB color, BlendMode blendMode) {
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if (useEnhancedRenderer) {
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int low = floor(position);
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int high = ceil(position);
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float lowFactor = ((float)high - position);
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float highFactor = (position - (float)low);
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if (blendMode == BlendModeAdd) {
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blendAdd(wrap(low), color, lowFactor);
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blendAdd(wrap(high), color, highFactor);
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} else if (blendMode == BlendModeAlpha) {
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blendAlpha(wrap(low), color, lowFactor);
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blendAlpha(wrap(high), color, highFactor);
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} else if (blendMode == BlendModeOver) {
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blendOver(wrap(low), color, lowFactor);
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blendOver(wrap(high), color, highFactor);
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}
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} else {
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leds[wrap((int)position)] = color;
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}
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}
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// Additive blending
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void blendAdd(int position, CRGB color, float factor) {
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leds[position].r += color.r * factor;
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leds[position].g += color.g * factor;
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leds[position].b += color.b * factor;
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leds[position].r += min(color.r * factor, 255 - leds[position].r);
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leds[position].g += min(color.g * factor, 255 - leds[position].g);
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leds[position].b += min(color.b * factor, 255 - leds[position].b);
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}
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// Alpha blending (factor is the alpha value)
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void blendAlpha(int position, CRGB color, float factor) {
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leds[position].r = (uint8_t)mapFloat(factor, 0.0, 1.0, leds[position].r, color.r);
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leds[position].g = (uint8_t)mapFloat(factor, 0.0, 1.0, leds[position].g, color.g);
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leds[position].b = (uint8_t)mapFloat(factor, 0.0, 1.0, leds[position].b, color.b);
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}
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// Overlay/replace blending
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void blendOver(int position, CRGB color, float factor) {
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leds[position].r = color.r * factor;
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leds[position].g = color.g * factor;
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leds[position].b = color.b * factor;
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leds[position] = color;
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}
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// Wrap around LED ring
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