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tileclk: Optimize performance with pre-calculated colors and time caching 

- Replace color interpolation with pre-calculated color tables.
- Add a time cache system using `Uint8Array` for fast digit extraction.
- Implement typed arrays for animation timeout tracking.
- Add conditional state saving to reduce flash wear.
- Simplify touch handling.
- Change initial state values from -1 to null.
master
stweedo 2025-06-18 14:57:41 -05:00
parent a989ab80ec
commit 1e9c001725
1 changed files with 281 additions and 257 deletions
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528
apps/tileclk/app.js
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@ -6,7 +6,6 @@
const SEC_SCALE = 6; const SEC_SCALE = 6;
const FRAC_STEPS = 5; const FRAC_STEPS = 5;
const ANIM_DELAY = 16; const ANIM_DELAY = 16;
const COLOR_INTERP = 0.2;
const GAP = 3; const GAP = 3;
const MAIN_BORDER_THICKNESS = 2; const MAIN_BORDER_THICKNESS = 2;
const SEC_BORDER_THICKNESS = 1; const SEC_BORDER_THICKNESS = 1;
@ -27,33 +26,14 @@
let showSeconds = settings.seconds === "show" || (settings.seconds === "dynamic" && !Bangle.isLocked()); let showSeconds = settings.seconds === "show" || (settings.seconds === "dynamic" && !Bangle.isLocked());
const showBorders = settings.borders !== false; const showBorders = settings.borders !== false;
// ===== FLAT STATE VARIABLES (Optimized for access speed) ===== // ===== STATE VARIABLES =====
// Display state let showingClockInfo = false, clockInfoUnfocused = false, userClockInfoPreference = null;
let showingClockInfo = false; let pendingSwitch = false, isDrawing = true, isColonDrawn = false, isSeconds = false;
let clockInfoUnfocused = false; let drawTimeout = null, secondsTimeout = null, lastTime = null, lastSeconds = null;
let userClockInfoPreference = null; // null: no preference, 'show': user wants it, 'hide': user dismissed it let clockInfoMenu = null, touchHandler = null, lockHandler = null;
let pendingSwitch = false; let animationTimeouts = new Uint16Array(50), animationTimeoutCount = 0;
// State tracking for conditional saving
// Animation state let initialShowingClockInfo = false, initialUserClockInfoPreference = null;
let isDrawing = true;
let isColonDrawn = false;
let isSeconds = false;
let drawTimeout = null;
let secondsTimeout = null;
// Time tracking - simple integers
let lastTime = -1; // HHMM format (e.g., 1234 for 12:34)
let lastSeconds = -1; // 0-59
// Clock info menu
let clockInfoMenu = null;
// Event handlers (for cleanup)
let touchHandler = null;
let lockHandler = null;
// Animation timeouts tracking
let animationTimeouts = [];
// ===== STATE PERSISTENCE ===== // ===== STATE PERSISTENCE =====
@ -61,45 +41,78 @@
const state = require('Storage').readJSON("tileclk.state.json", true) || {}; const state = require('Storage').readJSON("tileclk.state.json", true) || {};
showingClockInfo = state.showingClockInfo || false; showingClockInfo = state.showingClockInfo || false;
userClockInfoPreference = state.userClockInfoPreference || null; userClockInfoPreference = state.userClockInfoPreference || null;
// Track initial values for conditional saving
initialShowingClockInfo = showingClockInfo;
initialUserClockInfoPreference = userClockInfoPreference;
} }
function saveDisplayState() { function saveDisplayState() {
require('Storage').writeJSON("tileclk.state.json", { // Only save if values have changed to reduce flash wear
showingClockInfo: showingClockInfo, if (showingClockInfo !== initialShowingClockInfo ||
userClockInfoPreference: userClockInfoPreference userClockInfoPreference !== initialUserClockInfoPreference) {
}); require('Storage').writeJSON("tileclk.state.json", {
showingClockInfo: showingClockInfo,
userClockInfoPreference: userClockInfoPreference
});
}
} }
// ===== DIGIT BITMAPS ===== // ===== DIGIT BITMAPS =====
// Each digit packed into 16 bits (5 rows × 3 bits each)
const digitBitmaps = new Uint16Array([ const digitBitmaps = new Uint16Array([
0b000000000000000, // ' ' (space) 0b000000000000000,0b111101101101111,0b010110010010111,0b111001111100111,0b111001111001111,
0b111101101101111, // '0' 0b101101111001001,0b111100111001111,0b111100111101111,0b111001001001001,0b111101111101111,0b111101111001111
0b010110010010111, // '1'
0b111001111100111, // '2'
0b111001111001111, // '3'
0b101101111001001, // '4'
0b111100111001111, // '5'
0b111100111101111, // '6'
0b111001001001001, // '7'
0b111101111101111, // '8'
0b111101111001111 // '9'
]); ]);
let timeCache = null;
const initEssentialCaches = () => {
timeCache = {
hourDigits12: new Uint8Array(24 * 2),
hourDigits24: new Uint8Array(24 * 2),
minuteDigits: new Uint8Array(60 * 2)
};
for (let h = 0; h < 24; h++) {
const h12 = h % 12 || 12;
timeCache.hourDigits12[h * 2] = (h12 / 10) | 0;
timeCache.hourDigits12[h * 2 + 1] = h12 % 10;
timeCache.hourDigits24[h * 2] = (h / 10) | 0;
timeCache.hourDigits24[h * 2 + 1] = h % 10;
}
for (let m = 0; m < 60; m++) {
timeCache.minuteDigits[m * 2] = (m / 10) | 0;
timeCache.minuteDigits[m * 2 + 1] = m % 10;
}
}
// Helper function to get digit index // Helper function to get digit index
function getDigitIndex(digit) { const getDigitIndex = (digit) => {
if (digit === null || digit === -1) return 0; // space/blank if (digit === null) return 0; // space/blank
return (digit >= 0 && digit <= 9) ? digit + 1 : 0; return (digit >= 0 && digit <= 9) ? digit + 1 : 0;
} }
// Helper function to extract digits from time integer const extractTimeDigits = (time) => {
function extractTimeDigits(time) { if (time === null) {
if (time < 0) { return { h1: null, h2: null, m1: null, m2: null };
return { h1: -1, h2: -1, m1: -1, m2: -1 };
} }
// Bitwise OR 0 for integer division - more efficient on microcontrollers
const hours = (time / 100) | 0; const hours = (time / 100) | 0;
const minutes = time % 100; const minutes = time % 100;
if (timeCache && timeCache.minuteDigits) {
const hourCache = is12Hour ? timeCache.hourDigits12 : timeCache.hourDigits24;
const minuteCache = timeCache.minuteDigits;
return {
h1: hourCache[hours * 2],
h2: hourCache[hours * 2 + 1],
m1: minuteCache[minutes * 2],
m2: minuteCache[minutes * 2 + 1]
};
}
return { return {
h1: (hours / 10) | 0, h1: (hours / 10) | 0,
h2: hours % 10, h2: hours % 10,
@ -108,21 +121,12 @@
}; };
} }
// ===== CALCULATED CONSTANTS ===== const digitWidth = 3 * SCALE, colonWidth = SCALE, secDigitWidth = 3 * SEC_SCALE;
const digitWidth = 3 * SCALE; const totalSecWidth = 2 * secDigitWidth + GAP, secStartX = (width / 2) - (totalSecWidth / 2);
const colonWidth = SCALE;
const secDigitWidth = 3 * SEC_SCALE;
const totalSecWidth = 2 * secDigitWidth + GAP;
const secStartX = (width / 2) - (totalSecWidth / 2);
// ===== WIDGET OFFSET =====
const widgetYOffset = (settings.widgets === "hide" || settings.widgets === "swipe") ? -SCALE : 0; const widgetYOffset = (settings.widgets === "hide" || settings.widgets === "swipe") ? -SCALE : 0;
// ===== BORDER COLOR =====
const borderColor = settings.borderColor === "theme" || !settings.borderColor ? const borderColor = settings.borderColor === "theme" || !settings.borderColor ?
g.theme.bgH : g.toColor(settings.borderColor); g.theme.bgH : g.toColor(settings.borderColor);
// ===== POSITION CALCULATIONS =====
const positions = { const positions = {
threeDigit: (() => { threeDigit: (() => {
const totalWidth = 3 * digitWidth + colonWidth + 3 * GAP; const totalWidth = 3 * digitWidth + colonWidth + 3 * GAP;
@ -160,26 +164,15 @@
}; };
// Touch areas // Touch areas
const mainTimeArea = { const mainTimeArea = { top: widgetYOffset, bottom: widgetYOffset + Math.round(0.6 * height) };
top: widgetYOffset, const bottomArea = { top: positions.seconds.y + widgetYOffset - 10, bottom: height };
bottom: widgetYOffset + Math.round(0.6 * height)
};
const secondsArea = {
left: positions.seconds.x[0] - 10,
right: positions.seconds.x[1] + secDigitWidth + 10,
top: positions.seconds.y + widgetYOffset - 10,
bottom: positions.seconds.y + widgetYOffset + 50 // Covers both seconds and clock info
};
// ===== LAYOUT GENERATION =====
const threeDigitLayout = [ const threeDigitLayout = [
{ type: 'digit', value: 'h2', x: positions.threeDigit.digitX[0], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE }, { type: 'digit', value: 'h2', x: positions.threeDigit.digitX[0], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE },
{ type: 'colon', x: positions.threeDigit.colonX, y: positions.threeDigit.colonY + widgetYOffset, scale: SCALE }, { type: 'colon', x: positions.threeDigit.colonX, y: positions.threeDigit.colonY + widgetYOffset, scale: SCALE },
{ type: 'digit', value: 'm1', x: positions.threeDigit.digitX[1], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE }, { type: 'digit', value: 'm1', x: positions.threeDigit.digitX[1], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE },
{ type: 'digit', value: 'm2', x: positions.threeDigit.digitX[2], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE } { type: 'digit', value: 'm2', x: positions.threeDigit.digitX[2], y: positions.threeDigit.digitsY + widgetYOffset, scale: SCALE }
]; ];
const fourDigitLayout = [ const fourDigitLayout = [
{ type: 'digit', value: 'h1', x: positions.fourDigit.digitX[0], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE }, { type: 'digit', value: 'h1', x: positions.fourDigit.digitX[0], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE },
{ type: 'digit', value: 'h2', x: positions.fourDigit.digitX[1], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE }, { type: 'digit', value: 'h2', x: positions.fourDigit.digitX[1], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE },
@ -188,30 +181,37 @@
{ type: 'digit', value: 'm2', x: positions.fourDigit.digitX[3], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE } { type: 'digit', value: 'm2', x: positions.fourDigit.digitX[3], y: positions.fourDigit.digitsY + widgetYOffset, scale: SCALE }
]; ];
// ===== COLOR INTERPOLATION WITH CACHING ===== // ===== EFFICIENT COLOR SYSTEM =====
const colorCache = {}; // Pre-calculated color tables for animations using typed arrays
let colorOn = null, colorOff = null;
function interpColor(c1, c2, fraction) { const initColorTables = () => {
const key = c1 + "_" + c2 + "_" + Math.round(fraction * FRAC_STEPS); // Use Uint32Array for maximum performance
if (colorCache[key]) return colorCache[key]; colorOn = new Uint32Array(FRAC_STEPS + 1);
colorOff = new Uint32Array(FRAC_STEPS + 1);
// Pre-calculate fractions to avoid repeated operations const bgColor = g.theme.bg;
const invFrac = FRAC_STEPS - Math.round(fraction * FRAC_STEPS); const fgColor = g.theme.fg;
const frac = Math.round(fraction * FRAC_STEPS);
// Inline color extraction and use bitwise OR for integer conversion // Calculate all color transitions
const r = ((((c1 >> 16) & 0xFF) * invFrac + ((c2 >> 16) & 0xFF) * frac) / FRAC_STEPS) | 0; for (let i = 0; i <= FRAC_STEPS; i++) {
const g = ((((c1 >> 8) & 0xFF) * invFrac + ((c2 >> 8) & 0xFF) * frac) / FRAC_STEPS) | 0; const frac = i / FRAC_STEPS;
const b = (((c1 & 0xFF) * invFrac + (c2 & 0xFF) * frac) / FRAC_STEPS) | 0; const invFrac = 1 - frac;
colorCache[key] = (r << 16) | (g << 8) | b; // Direct calculation for better performance
return colorCache[key]; const rOn = (((bgColor >> 16) & 0xFF) * invFrac + ((fgColor >> 16) & 0xFF) * frac) | 0;
const gOn = (((bgColor >> 8) & 0xFF) * invFrac + ((fgColor >> 8) & 0xFF) * frac) | 0;
const bOn = ((bgColor & 0xFF) * invFrac + (fgColor & 0xFF) * frac) | 0;
const rOff = (((fgColor >> 16) & 0xFF) * invFrac + ((bgColor >> 16) & 0xFF) * frac) | 0;
const gOff = (((fgColor >> 8) & 0xFF) * invFrac + ((bgColor >> 8) & 0xFF) * frac) | 0;
const bOff = ((fgColor & 0xFF) * invFrac + (bgColor & 0xFF) * frac) | 0;
colorOn[i] = (rOn << 16) | (gOn << 8) | bOn;
colorOff[i] = (rOff << 16) | (gOff << 8) | bOff;
}
} }
// ===== BORDER DRAWING ===== // ===== BORDER DRAWING =====
function drawBorder(x, y, s, thickness) { const drawBorder = (x, y, s, thickness) => {
if (!showBorders || thickness <= 0) return; if (!showBorders || thickness <= 0) return;
g.setColor(borderColor); g.setColor(borderColor);
for (let i = 0; i < thickness; i++) { for (let i = 0; i < thickness; i++) {
g.drawRect(x + i, y + i, x + s - 1 - i, y + s - 1 - i); g.drawRect(x + i, y + i, x + s - 1 - i, y + s - 1 - i);
@ -219,22 +219,27 @@
} }
// ===== ANIMATION FUNCTIONS ===== // ===== ANIMATION FUNCTIONS =====
function animateTile(x, y, s, on, callback, isMainDigit) { function animateTransition(x, y, s, startColor, endColor, drawBorderFunc, callback) {
let progress = on ? 0 : 1; let step = 0;
const step = on ? COLOR_INTERP : -COLOR_INTERP; const colors = startColor === g.theme.bg ? colorOn : colorOff;
const thickness = isMainDigit ? MAIN_BORDER_THICKNESS : SEC_BORDER_THICKNESS;
function transition() { function transition() {
if (!isDrawing || (pendingSwitch && isSeconds)) return; if (!isDrawing || (pendingSwitch && isSeconds)) return;
g.setColor(interpColor(on ? g.theme.bg : g.theme.fg, on ? g.theme.fg : g.theme.bg, Math.abs(progress - (on ? 0 : 1))));
// Use pre-calculated color instead of interpColor()
g.setColor(colors[step]);
g.fillRect(x, y, x + s - 1, y + s - 1); g.fillRect(x, y, x + s - 1, y + s - 1);
progress += step; step++;
if (progress >= 0 && progress <= 1) { if (step <= FRAC_STEPS) {
const timeout = setTimeout(transition, ANIM_DELAY); const timeout = setTimeout(transition, ANIM_DELAY);
animationTimeouts.push(timeout); if (animationTimeoutCount < animationTimeouts.length) {
animationTimeouts[animationTimeoutCount++] = timeout;
}
} else { } else {
if (on) drawBorder(x, y, s, thickness); g.setColor(endColor);
g.fillRect(x, y, x + s - 1, y + s - 1);
if (drawBorderFunc) drawBorderFunc();
if (callback) callback(); if (callback) callback();
} }
} }
@ -242,74 +247,42 @@
transition(); transition();
} }
function animateTileOn(x, y, s, callback, isMainDigit) {
const thickness = isMainDigit ? MAIN_BORDER_THICKNESS : SEC_BORDER_THICKNESS;
const borderFunc = (showBorders && thickness > 0) ?
() => drawBorder(x, y, s, thickness) : null;
animateTransition(x, y, s, g.theme.bg, g.theme.fg, borderFunc, callback);
}
function animateTileOff(x, y, s, callback) {
animateTransition(x, y, s, g.theme.fg, g.theme.bg, null, callback);
}
// ===== TILE CALCULATION ===== // ===== TILE CALCULATION =====
function calculateTilesToUpdate(x, y, s, currentDigit, prevDigit) { const calculateTilesToUpdate = (x, y, s, currentDigit, prevDigit) => {
const currentPacked = digitBitmaps[getDigitIndex(currentDigit)]; const currentPacked = digitBitmaps[getDigitIndex(currentDigit)];
const prevPacked = digitBitmaps[getDigitIndex(prevDigit)]; const prevPacked = digitBitmaps[getDigitIndex(prevDigit)];
const tiles = []; const tiles = [];
let yPos = y; let yPos = y;
// Loop unrolled for 5 rows - eliminates loop overhead on microcontroller // Loop through 5 rows
// Row 0 for (let row = 0; row < 5; row++) {
let currentRow = (currentPacked >> 12) & 0b111; const shift = 12 - row * 3;
let prevRow = (prevPacked >> 12) & 0b111; const currentRow = (currentPacked >> shift) & 0b111;
let diff = currentRow ^ prevRow; const prevRow = (prevPacked >> shift) & 0b111;
if (diff) { const diff = currentRow ^ prevRow;
if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 }); if (diff) {
if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 }); if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 });
if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 }); if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 });
} if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 });
}
// Row 1 yPos += s;
yPos += s;
currentRow = (currentPacked >> 9) & 0b111;
prevRow = (prevPacked >> 9) & 0b111;
diff = currentRow ^ prevRow;
if (diff) {
if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 });
if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 });
if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 });
}
// Row 2
yPos += s;
currentRow = (currentPacked >> 6) & 0b111;
prevRow = (prevPacked >> 6) & 0b111;
diff = currentRow ^ prevRow;
if (diff) {
if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 });
if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 });
if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 });
}
// Row 3
yPos += s;
currentRow = (currentPacked >> 3) & 0b111;
prevRow = (prevPacked >> 3) & 0b111;
diff = currentRow ^ prevRow;
if (diff) {
if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 });
if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 });
if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 });
}
// Row 4
yPos += s;
currentRow = currentPacked & 0b111;
prevRow = prevPacked & 0b111;
diff = currentRow ^ prevRow;
if (diff) {
if (diff & 4) tiles.push({ x: x, y: yPos, state: (currentRow >> 2) & 1 });
if (diff & 2) tiles.push({ x: x + s, y: yPos, state: (currentRow >> 1) & 1 });
if (diff & 1) tiles.push({ x: x + s + s, y: yPos, state: currentRow & 1 });
} }
return tiles; return tiles;
} }
// ===== TILE UPDATE ===== // ===== TILE UPDATE =====
function updateTile(tile, s, skipAnimation, isMainDigit) { function updateTile(tile, s, skipAnimation, isMainDigit, isClearing) {
const thickness = isMainDigit ? MAIN_BORDER_THICKNESS : SEC_BORDER_THICKNESS; const thickness = isMainDigit ? MAIN_BORDER_THICKNESS : SEC_BORDER_THICKNESS;
if (tile.state) { if (tile.state) {
@ -318,25 +291,30 @@
g.fillRect(tile.x, tile.y, tile.x + s - 1, tile.y + s - 1); g.fillRect(tile.x, tile.y, tile.x + s - 1, tile.y + s - 1);
drawBorder(tile.x, tile.y, s, thickness); drawBorder(tile.x, tile.y, s, thickness);
} else { } else {
animateTile(tile.x, tile.y, s, true, null, isMainDigit); animateTileOn(tile.x, tile.y, s, null, isMainDigit);
} }
} else { } else {
g.setColor(g.theme.bg); if (skipAnimation || isClearing) {
g.fillRect(tile.x, tile.y, tile.x + s - 1, tile.y + s - 1); g.setColor(g.theme.bg);
g.fillRect(tile.x, tile.y, tile.x + s - 1, tile.y + s - 1);
} else {
animateTileOff(tile.x, tile.y, s, null);
}
} }
} }
function updateTiles(tiles, s, callback, skipAnimation, isMainDigit) { function updateTiles(tiles, s, callback, skipAnimation, isMainDigit, isClearing) {
if (!isDrawing || !tiles.length || (pendingSwitch && isSeconds)) { if (!isDrawing || !tiles.length || (pendingSwitch && isSeconds)) {
if (callback) callback(); if (callback) callback();
return; return;
} }
const tile = tiles.shift(); const tile = tiles.shift();
updateTile(tile, s, skipAnimation, isMainDigit); updateTile(tile, s, skipAnimation, isMainDigit, isClearing);
const timeout = setTimeout(() => updateTiles(tiles, s, callback, skipAnimation, isMainDigit), ANIM_DELAY); const timeout = setTimeout(() => updateTiles(tiles, s, callback, skipAnimation, isMainDigit, isClearing), ANIM_DELAY);
animationTimeouts.push(timeout); if (animationTimeoutCount < animationTimeouts.length) {
animationTimeouts[animationTimeoutCount++] = timeout;
}
} }
// ===== DIGIT DRAWING ===== // ===== DIGIT DRAWING =====
function drawDigit(x, y, s, num, prevNum, callback, skipAnimation, isMainDigit) { function drawDigit(x, y, s, num, prevNum, callback, skipAnimation, isMainDigit) {
if (num === prevNum) { if (num === prevNum) {
@ -351,7 +329,7 @@
} }
const tiles = calculateTilesToUpdate(x, y, s, num, prevNum); const tiles = calculateTilesToUpdate(x, y, s, num, prevNum);
updateTiles(tiles, s, callback, skipAnimation, isMainDigit); updateTiles(tiles, s, callback, skipAnimation, isMainDigit, num === null);
} }
function drawColon(x, y, callback) { function drawColon(x, y, callback) {
@ -359,14 +337,13 @@
if (callback) callback(); if (callback) callback();
return; return;
} }
animateTile(x, y + SCALE * 2, SCALE, true, () => { animateTileOn(x, y + SCALE * 2, SCALE, () => {
animateTile(x, y + SCALE * 4, SCALE, true, () => { animateTileOn(x, y + SCALE * 4, SCALE, () => {
isColonDrawn = true; isColonDrawn = true;
if (callback) callback(); if (callback) callback();
}, true); }, true);
}, true); }, true);
} }
// ===== TIME UPDATE SCHEDULING ===== // ===== TIME UPDATE SCHEDULING =====
function scheduleNextUpdate() { function scheduleNextUpdate() {
if (drawTimeout) clearTimeout(drawTimeout); if (drawTimeout) clearTimeout(drawTimeout);
@ -375,23 +352,22 @@
drawTimeout = setTimeout(updateAndAnimTime, msUntilNextMinute); drawTimeout = setTimeout(updateAndAnimTime, msUntilNextMinute);
} }
// ===== CLEARING FUNCTIONS (Direct callback approach for performance) ===== // ===== CLEARING FUNCTIONS (Direct callback approach for performance) =====
function clearColon(callback) { function clearColon(callback) {
if (!isColonDrawn) { if (!isColonDrawn) {
if (callback) callback(); if (callback) callback();
return; return;
} }
const layout = is12Hour && lastTime >= 0 && lastTime < 1000 ? threeDigitLayout : fourDigitLayout; const layout = is12Hour && lastTime !== null && lastTime < 1000 ? threeDigitLayout : fourDigitLayout;
const colonItem = layout.find(item => item.type === 'colon'); const colonItem = layout.find(item => item.type === 'colon');
if (colonItem) { if (colonItem) {
animateTile(colonItem.x, colonItem.y + SCALE * 2, SCALE, false, () => { animateTileOff(colonItem.x, colonItem.y + SCALE * 2, SCALE, () => {
animateTile(colonItem.x, colonItem.y + SCALE * 4, SCALE, false, () => { animateTileOff(colonItem.x, colonItem.y + SCALE * 4, SCALE, () => {
isColonDrawn = false; isColonDrawn = false;
if (callback) callback(); if (callback) callback();
}, true); });
}, true); });
} else { } else {
isColonDrawn = false; isColonDrawn = false;
if (callback) callback(); if (callback) callback();
@ -399,7 +375,7 @@
} }
function clearAllDigits(callback) { function clearAllDigits(callback) {
const wasThreeDigit = is12Hour && lastTime >= 0 && lastTime < 1000; const wasThreeDigit = is12Hour && lastTime !== null && lastTime < 1000;
const layout = wasThreeDigit ? threeDigitLayout : fourDigitLayout; const layout = wasThreeDigit ? threeDigitLayout : fourDigitLayout;
const previousDigits = extractTimeDigits(lastTime); const previousDigits = extractTimeDigits(lastTime);
@ -413,7 +389,7 @@
const item = items.shift(); const item = items.shift();
if (item.type === 'digit') { if (item.type === 'digit') {
drawDigit(item.x, item.y, item.scale, -1, previousDigits[item.value], () => clearItems(items, next), false, true); drawDigit(item.x, item.y, item.scale, null, previousDigits[item.value], () => clearItems(items, next), false, true);
} else if (item.type === 'colon') { } else if (item.type === 'colon') {
clearColon(() => clearItems(items, next)); clearColon(() => clearItems(items, next));
} }
@ -429,12 +405,11 @@
clearItems(minuteItems.slice(), () => { clearItems(minuteItems.slice(), () => {
if (showSeconds && !showingClockInfo) { if (showSeconds && !showingClockInfo) {
clearSeconds(() => { clearSeconds(() => {
lastTime = -1; lastTime = null;
if (callback) callback(); if (callback) callback();
}); });
} else { } else {
lastTime = -1; lastTime = null;
animationTimeouts = []; // Clear animation timeouts to prevent memory leak
if (callback) callback(); if (callback) callback();
} }
}); });
@ -453,20 +428,33 @@
// Extract digits only for layout decision // Extract digits only for layout decision
const isCurrentThreeDigit = is12Hour && hoursNum < 10; const isCurrentThreeDigit = is12Hour && hoursNum < 10;
const wasLastThreeDigit = is12Hour && lastTime >= 0 && lastTime < 1000; const wasLastThreeDigit = is12Hour && lastTime !== null && lastTime < 1000;
function drawTime() { function drawTime() {
// Extract current digits - bitwise OR faster than Math.floor on Espruino // Extract current digits using cached lookups for maximum performance
const h1 = (hoursNum / 10) | 0; let h1, h2, m1, m2;
const h2 = hoursNum % 10;
const m1 = (minutesNum / 10) | 0; if (timeCache && timeCache.minuteDigits) {
const m2 = minutesNum % 10; const hourCache = is12Hour ? timeCache.hourDigits12 : timeCache.hourDigits24;
const minuteCache = timeCache.minuteDigits;
h1 = hourCache[hoursNum * 2];
h2 = hourCache[hoursNum * 2 + 1];
m1 = minuteCache[minutesNum * 2];
m2 = minuteCache[minutesNum * 2 + 1];
} else {
// Fallback to direct calculation
h1 = (hoursNum / 10) | 0;
h2 = hoursNum % 10;
m1 = (minutesNum / 10) | 0;
m2 = minutesNum % 10;
}
const digitMap = { h1: h1, h2: h2, m1: m1, m2: m2 }; const digitMap = { h1: h1, h2: h2, m1: m1, m2: m2 };
// Extract previous digits (or -1 for blank) // Extract previous digits (or null for blank)
const previousDigits = (isCurrentThreeDigit !== wasLastThreeDigit && lastTime >= 0) ? const previousDigits = (isCurrentThreeDigit !== wasLastThreeDigit && lastTime !== null) ?
{ h1: -1, h2: -1, m1: -1, m2: -1 } : { h1: null, h2: null, m1: null, m2: null } :
extractTimeDigits(lastTime); extractTimeDigits(lastTime);
const layout = isCurrentThreeDigit ? threeDigitLayout : fourDigitLayout; const layout = isCurrentThreeDigit ? threeDigitLayout : fourDigitLayout;
@ -496,8 +484,6 @@
} }
function finishDrawing() { function finishDrawing() {
g.flip();
animationTimeouts = []; // Clear animation timeouts to prevent memory leak
lastTime = currentTime; lastTime = currentTime;
if (showSeconds && !showingClockInfo) updateSeconds(); if (showSeconds && !showingClockInfo) updateSeconds();
scheduleNextUpdate(); scheduleNextUpdate();
@ -514,17 +500,23 @@
const now = new Date(); const now = new Date();
let secondsNum = now.getSeconds(); let secondsNum = now.getSeconds();
const skipAnimation = lastSeconds < 0; const skipAnimation = lastSeconds === null;
// Declare digit variables once // Declare digit variables once
let s1, s2, prevS1, prevS2; let s1, s2, prevS1, prevS2;
if (skipAnimation) { if (skipAnimation) {
// Calculate how many tiles need to be drawn from blank // Calculate how many tiles need to be drawn from blank using cached lookups
s1 = (secondsNum / 10) | 0; // Bitwise OR for integer division if (timeCache && timeCache.minuteDigits) {
s2 = secondsNum % 10; s1 = timeCache.minuteDigits[secondsNum * 2];
let tiles0 = calculateTilesToUpdate(positions.seconds.x[0], positions.seconds.y + widgetYOffset, SEC_SCALE, s1, -1); s2 = timeCache.minuteDigits[secondsNum * 2 + 1];
let tiles1 = calculateTilesToUpdate(positions.seconds.x[1], positions.seconds.y + widgetYOffset, SEC_SCALE, s2, -1); } else {
s1 = (secondsNum / 10) | 0; // Bitwise OR for integer division
s2 = secondsNum % 10;
}
let tiles0 = calculateTilesToUpdate(positions.seconds.x[0], positions.seconds.y + widgetYOffset, SEC_SCALE, s1, null);
let tiles1 = calculateTilesToUpdate(positions.seconds.x[1], positions.seconds.y + widgetYOffset, SEC_SCALE, s2, null);
let tilesNeeded = tiles0.length + tiles1.length; let tilesNeeded = tiles0.length + tiles1.length;
// Check time again after calculations // Check time again after calculations
@ -539,11 +531,23 @@
} }
} }
// Extract current and previous digits // Extract current and previous digits using cached lookups
s1 = (secondsNum / 10) | 0; // Bitwise OR for integer division if (timeCache && timeCache.minuteDigits) {
s2 = secondsNum % 10; s1 = timeCache.minuteDigits[secondsNum * 2];
prevS1 = lastSeconds < 0 ? -1 : (lastSeconds / 10) | 0; s2 = timeCache.minuteDigits[secondsNum * 2 + 1];
prevS2 = lastSeconds < 0 ? -1 : lastSeconds % 10; if (lastSeconds !== null) {
prevS1 = timeCache.minuteDigits[lastSeconds * 2];
prevS2 = timeCache.minuteDigits[lastSeconds * 2 + 1];
} else {
prevS1 = null;
prevS2 = null;
}
} else {
s1 = (secondsNum / 10) | 0; // Bitwise OR for integer division
s2 = secondsNum % 10;
prevS1 = lastSeconds === null ? null : (lastSeconds / 10) | 0;
prevS2 = lastSeconds === null ? null : lastSeconds % 10;
}
function updateDigit(index) { function updateDigit(index) {
// Check if we should stop // Check if we should stop
@ -573,8 +577,6 @@
function finishSeconds() { function finishSeconds() {
lastSeconds = secondsNum; lastSeconds = secondsNum;
isSeconds = false; isSeconds = false;
animationTimeouts = [];
g.flip();
// If we're locked after finishing animation, clear the seconds // If we're locked after finishing animation, clear the seconds
if (settings.seconds === "dynamic" && Bangle.isLocked() && !showingClockInfo) { if (settings.seconds === "dynamic" && Bangle.isLocked() && !showingClockInfo) {
@ -603,7 +605,7 @@
function clearSeconds(callback) { function clearSeconds(callback) {
// If not drawing seconds, just call callback // If not drawing seconds, just call callback
if (lastSeconds < 0) { if (lastSeconds === null) {
if (callback) callback(); if (callback) callback();
return; return;
} }
@ -614,16 +616,22 @@
secondsTimeout = null; secondsTimeout = null;
} }
// Always do sequential animated clearing // Always do sequential animated clearing using cached lookups
isSeconds = true; isSeconds = true;
const s1 = (lastSeconds / 10) | 0; // Bitwise OR for integer division let s1, s2;
const s2 = lastSeconds % 10;
drawDigit(positions.seconds.x[0], positions.seconds.y + widgetYOffset, SEC_SCALE, -1, s1, () => { if (timeCache && timeCache.minuteDigits) {
drawDigit(positions.seconds.x[1], positions.seconds.y + widgetYOffset, SEC_SCALE, -1, s2, () => { s1 = timeCache.minuteDigits[lastSeconds * 2];
lastSeconds = -1; s2 = timeCache.minuteDigits[lastSeconds * 2 + 1];
} else {
s1 = (lastSeconds / 10) | 0; // Bitwise OR for integer division
s2 = lastSeconds % 10;
}
drawDigit(positions.seconds.x[0], positions.seconds.y + widgetYOffset, SEC_SCALE, null, s1, () => {
drawDigit(positions.seconds.x[1], positions.seconds.y + widgetYOffset, SEC_SCALE, null, s2, () => {
lastSeconds = null;
isSeconds = false; isSeconds = false;
animationTimeouts = []; // Clear animation timeouts to prevent memory leak
if (callback) callback(); if (callback) callback();
}, false, false); }, false, false);
}, false, false); }, false, false);
@ -631,8 +639,11 @@
// ===== ANIMATION CLEANUP ===== // ===== ANIMATION CLEANUP =====
function cancelAllAnimations() { function cancelAllAnimations() {
animationTimeouts.forEach(t => clearTimeout(t)); // Use typed array for better performance
animationTimeouts = []; for (let i = 0; i < animationTimeoutCount; i++) {
clearTimeout(animationTimeouts[i]);
}
animationTimeoutCount = 0;
} }
// ===== SWITCHING FUNCTIONS (Optimized with direct state changes) ===== // ===== SWITCHING FUNCTIONS (Optimized with direct state changes) =====
@ -672,7 +683,7 @@
g.flip(); g.flip();
}; };
if (showSeconds && lastSeconds >= 0) { if (showSeconds && lastSeconds !== null) {
clearSeconds(show); clearSeconds(show);
} else { } else {
show(); show();
@ -700,7 +711,7 @@
userClockInfoPreference = 'hide'; userClockInfoPreference = 'hide';
showingClockInfo = false; showingClockInfo = false;
clockInfoUnfocused = false; clockInfoUnfocused = false;
lastSeconds = -1; lastSeconds = null;
g.setColor(g.theme.bg); g.setColor(g.theme.bg);
g.fillRect(0, positions.seconds.y + widgetYOffset - 10, width, positions.seconds.y + widgetYOffset + 50); g.fillRect(0, positions.seconds.y + widgetYOffset - 10, width, positions.seconds.y + widgetYOffset + 50);
@ -716,30 +727,13 @@
Bangle.removeListener("touch", touchHandler); Bangle.removeListener("touch", touchHandler);
} }
// Create new handler
touchHandler = (_, e) => { touchHandler = (_, e) => {
if (showingClockInfo) { // Main time area - cycles through clock info states when clock info is available
// Check if tap is on clock info area if (e.y >= mainTimeArea.top && e.y <= mainTimeArea.bottom) {
if (e.x >= secondsArea.left && e.x <= secondsArea.right && if (showingClockInfo) {
e.y >= secondsArea.top && e.y <= secondsArea.bottom) {
// Refocus if unfocused
if (clockInfoUnfocused) {
if (settings.haptics !== false) Bangle.buzz(50); // Haptic feedback for refocus
clockInfoUnfocused = false;
if (clockInfoMenu) {
clockInfoMenu.focus = true;
clockInfoMenu.redraw();
}
g.flip();
}
return;
}
// Check main time area for dismissal
if (e.y >= mainTimeArea.top && e.y <= mainTimeArea.bottom) {
if (!clockInfoUnfocused) { if (!clockInfoUnfocused) {
// First tap: unfocus // First tap: unfocus
if (settings.haptics !== false) Bangle.buzz(40); // Light haptic for unfocus if (settings.haptics !== false) Bangle.buzz(40);
clockInfoUnfocused = true; clockInfoUnfocused = true;
if (clockInfoMenu) { if (clockInfoMenu) {
clockInfoMenu.focus = false; clockInfoMenu.focus = false;
@ -748,7 +742,7 @@
g.flip(); g.flip();
} else { } else {
// Second tap: dismiss // Second tap: dismiss
if (settings.haptics !== false) Bangle.buzz(60); // Slightly stronger haptic for dismiss if (settings.haptics !== false) Bangle.buzz(60);
if (showSeconds) { if (showSeconds) {
switchToSeconds(); switchToSeconds();
} else { } else {
@ -757,13 +751,32 @@
} }
} }
} }
} else { return;
// Check seconds area for switching to clock info }
if (e.x >= secondsArea.left && e.x <= secondsArea.right &&
e.y >= secondsArea.top && e.y <= secondsArea.bottom) { // Bottom area - toggles between seconds and clock info
if (settings.haptics !== false) Bangle.buzz(50); // Haptic feedback for showing clock info if (e.y >= bottomArea.top && e.y <= bottomArea.bottom) {
userClockInfoPreference = 'show'; if (showingClockInfo) {
switchToClockInfo(); // Refocus if unfocused, otherwise toggle to seconds
if (clockInfoUnfocused) {
if (settings.haptics !== false) Bangle.buzz(50);
clockInfoUnfocused = false;
if (clockInfoMenu) {
clockInfoMenu.focus = true;
clockInfoMenu.redraw();
}
g.flip();
} else if (showSeconds) {
if (settings.haptics !== false) Bangle.buzz(50);
switchToSeconds();
}
} else {
// Switch to clock info if available
if (clockInfoMenu) {
if (settings.haptics !== false) Bangle.buzz(50);
userClockInfoPreference = 'show';
switchToClockInfo();
}
} }
} }
}; };
@ -836,10 +849,14 @@
function drawClock() { function drawClock() {
g.clear(Bangle.appRect); g.clear(Bangle.appRect);
if (settings.widgets !== "hide") Bangle.drawWidgets(); if (settings.widgets !== "hide") Bangle.drawWidgets();
lastTime = -1; lastTime = null;
lastSeconds = -1; lastSeconds = null;
isColonDrawn = false; isColonDrawn = false;
// Initialize essential caches
if (!timeCache) initEssentialCaches();
if (!colorOn || !colorOff) initColorTables();
// Load saved state // Load saved state
loadDisplayState(); loadDisplayState();
@ -907,12 +924,19 @@
showingClockInfo = false; showingClockInfo = false;
clockInfoUnfocused = false; clockInfoUnfocused = false;
userClockInfoPreference = null; userClockInfoPreference = null;
lastTime = -1; lastTime = null;
lastSeconds = -1; lastSeconds = null;
isColonDrawn = false; isColonDrawn = false;
isDrawing = false;
pendingSwitch = false;
isSeconds = false;
// Clear animation system
colorOn = null;
colorOff = null;
// Clear caches // Clear caches
Object.keys(colorCache).forEach(key => delete colorCache[key]); timeCache = null;
// Restore widgets if hidden // Restore widgets if hidden
if (["hide", "swipe"].includes(settings.widgets)) { if (["hide", "swipe"].includes(settings.widgets)) {
@ -943,7 +967,7 @@
pendingSwitch = false; // Clear any pending switch pendingSwitch = false; // Clear any pending switch
if (isLocked) { if (isLocked) {
if (!showingClockInfo && lastSeconds >= 0) { if (!showingClockInfo && lastSeconds !== null) {
if (secondsTimeout) clearTimeout(secondsTimeout); if (secondsTimeout) clearTimeout(secondsTimeout);
clearSeconds(() => { clearSeconds(() => {
if (userClockInfoPreference === 'show') { if (userClockInfoPreference === 'show') {
@ -961,7 +985,7 @@
if (showingClockInfo && userClockInfoPreference !== 'show') { if (showingClockInfo && userClockInfoPreference !== 'show') {
switchToSeconds(); switchToSeconds();
} else if (showSeconds && !showingClockInfo) { } else if (showSeconds && !showingClockInfo) {
updateAndAnimTime(); updateSeconds();
} }
} }
} }