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Fixes https://github.com/microsoft/vscode/issues/166158

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This commit is contained in:
Jean Pierre
2022-11-22 00:07:23 -05:00
parent a351f5758a
commit d4ee0309d9
5 changed files with 33 additions and 23 deletions
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addons/xterm-addon-canvas/src/BaseRenderLayer.ts
+4 -3
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@@ -376,12 +376,12 @@ export abstract class BaseRenderLayer extends Disposable implements IRenderLayer
this._ctx.save();
this._clipRow(y);
// Draw the image, use the bitmap if it's available
if (this._charAtlas.pages[glyph.texturePage].hasCanvasChanged) {
if (this._charAtlas.pages[glyph.texturePage].dirtyId !== this._bitmapGenerator[glyph.texturePage]?.dirtyId) {
if (!this._bitmapGenerator[glyph.texturePage]) {
this._bitmapGenerator[glyph.texturePage] = new BitmapGenerator(this._charAtlas.pages[glyph.texturePage].canvas);
}
this._bitmapGenerator[glyph.texturePage]?.refresh();
this._charAtlas.pages[glyph.texturePage].hasCanvasChanged = false;
this._bitmapGenerator[glyph.texturePage]!.refresh();
this._bitmapGenerator[glyph.texturePage]!.dirtyId = this._charAtlas.pages[glyph.texturePage].dirtyId;
}
this._ctx.drawImage(
this._bitmapGenerator[glyph.texturePage]?.bitmap || this._charAtlas!.pages[glyph.texturePage].canvas,
@@ -440,6 +440,7 @@ class BitmapGenerator {
private _commitTimeout: number | undefined = undefined;
private _bitmap: ImageBitmap | undefined = undefined;
public get bitmap(): ImageBitmap | undefined { return this._bitmap; }
public dirtyId: number = -1;
constructor(private readonly _canvas: HTMLCanvasElement) {
}