Ewald
068792c764
- Implement global, shadows, midtones, and highlights zones for color correction - Add brightness, contrast, saturation, vibrance, and gamma controls per zone - Include temperature and tint adjustments with improved hue adjustment range - Introduce soft brush drawing feature with adjustable softness - Enhance draw tool with improved cursor feedback and eraser functionality - Optimize performance with requestAnimationFrame for certain interactions - Refactor color correction widget synchronization and reset logic
46 lines
1008 B
JavaScript
46 lines
1008 B
JavaScript
const POOL_MAX = 24;
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const pool = [];
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function clampDim(value) {
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return Math.max(1, Math.round(value || 1));
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}
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function acquireCanvas(width, height) {
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const w = clampDim(width);
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const h = clampDim(height);
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for (let i = pool.length - 1; i >= 0; i--) {
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const c = pool[i];
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if (c.width === w && c.height === h) {
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pool.splice(i, 1);
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return c;
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}
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}
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const reused = pool.pop();
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if (reused) {
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if (reused.width !== w) reused.width = w;
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if (reused.height !== h) reused.height = h;
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return reused;
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}
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const fresh = document.createElement("canvas");
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fresh.width = w;
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fresh.height = h;
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return fresh;
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}
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function releaseCanvas(canvas) {
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if (!canvas) return;
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if (pool.length >= POOL_MAX) return;
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try {
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const ctx = canvas.getContext("2d");
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if (ctx) ctx.clearRect(0, 0, canvas.width, canvas.height);
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} catch {
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return;
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}
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pool.push(canvas);
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}
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function _poolSize() {
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return pool.length;
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}
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export {
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_poolSize,
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acquireCanvas,
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releaseCanvas
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};
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