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Fix ~1 second delay opening new document in Chrome by correctly setting willReadFrequently (#2962)

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* Fix ~1 second delay opening new document in Chrome by correctly setting willReadFrequently

* Use willReadFrequently in a couple more places
This commit is contained in:
Keavon Chambers
2025-07-31 02:49:16 -07:00
committed by GitHub
parent abab145d65
commit 07802204f2
3 changed files with 4 additions and 4 deletions
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frontend/src/components/panels/Document.svelte
+2 -2
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@@ -241,8 +241,8 @@
`.trim(); `.trim();
if (!rasterizedCanvas) { if (!rasterizedCanvas) {
rasterizedCanvas = await rasterizeSVGCanvas(svg, width * dpiFactor, height * dpiFactor, "image/png"); rasterizedCanvas = await rasterizeSVGCanvas(svg, width * dpiFactor, height * dpiFactor);
rasterizedContext = rasterizedCanvas.getContext("2d") || undefined; rasterizedContext = rasterizedCanvas.getContext("2d", { willReadFrequently: true }) || undefined;
} }
if (!rasterizedContext) return undefined; if (!rasterizedContext) return undefined;
frontend/src/messages.ts
+1 -1
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@@ -516,7 +516,7 @@ export class Color {
const canvas = document.createElement("canvas"); const canvas = document.createElement("canvas");
canvas.width = 1; canvas.width = 1;
canvas.height = 1; canvas.height = 1;
const context = canvas.getContext("2d"); const context = canvas.getContext("2d", { willReadFrequently: true });
if (!context) return undefined; if (!context) return undefined;
context.clearRect(0, 0, 1, 1); context.clearRect(0, 0, 1, 1);
frontend/src/utility-functions/rasterization.ts
+1 -1
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@@ -93,7 +93,7 @@ export async function imageToCanvasContext(imageData: ImageBitmapSource): Promis
canvas.width = width; canvas.width = width;
canvas.height = height; canvas.height = height;
const context = canvas.getContext("2d"); const context = canvas.getContext("2d", { willReadFrequently: true });
if (!context) throw new Error("Could not create canvas context"); if (!context) throw new Error("Could not create canvas context");
context.drawImage(image, 0, 0, image.width, image.height, 0, 0, width, height); context.drawImage(image, 0, 0, image.width, image.height, 0, 0, width, height);