Expose show texture atlas command

This creates a file in the workspace and opens it currently, this could
be made nicer but it does the job for now.

Fixes #158920

src/vs/workbench/contrib/terminal/browser/terminal.ts

@@ -987,6 +987,11 @@ export interface IXtermTerminal {
 
  readonly onDidChangeSelection: Event<void>;
 
+ /**
+ * Gets a view of the current texture atlas used by the renderers.
+ */
+ readonly textureAtlas: Promise<ImageBitmap> | undefined;
+
  /**
  * The position of the terminal.
  */

src/vs/workbench/contrib/terminal/browser/terminalActions.ts

@@ -55,6 +55,8 @@ import { clearShellFileHistory, getCommandHistory } from 'vs/workbench/contrib/t
 import { Categories } from 'vs/platform/action/common/actionCommonCategories';
 import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
 import { TerminalCapability } from 'vs/platform/terminal/common/capabilities/capabilities';
+import { IFileService } from 'vs/platform/files/common/files';
+import { VSBuffer } from 'vs/base/common/buffer';
 
 export const switchTerminalActionViewItemSeparator = '\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500';
 export const switchTerminalShowTabsTitle = localize('showTerminalTabs', "Show Tabs");
@@ -2226,6 +2228,43 @@ export function registerTerminalActions() {
  clearShellFileHistory();
  }
  });
+ registerAction2(class extends Action2 {
+ constructor() {
+ super({
+ id: TerminalCommandId.ShowTextureAtlas,
+ title: { value: localize('workbench.action.terminal.showTextureAtlas', "Show Terminal Texture Atlas"), original: 'Show Terminal Texture Atlas' },
+ f1: true,
+ category: Categories.Developer.value,
+ precondition: ContextKeyExpr.or(TerminalContextKeys.processSupported, TerminalContextKeys.terminalHasBeenCreated)
+ });
+ }
+ async run(accessor: ServicesAccessor) {
+ const terminalService = accessor.get(ITerminalService);
+ const fileService = accessor.get(IFileService);
+ const openerService = accessor.get(IOpenerService);
+ const workspaceContextService = accessor.get(IWorkspaceContextService);
+ const bitmap = await terminalService.activeInstance?.xterm?.textureAtlas;
+ if (!bitmap) {
+ return;
+ }
+ const cwdUri = workspaceContextService.getWorkspace().folders[0].uri;
+ const fileUri = URI.joinPath(cwdUri, 'textureAtlas.png');
+ const canvas = document.createElement('canvas');
+ canvas.width = bitmap.width;
+ canvas.height = bitmap.height;
+ const ctx = canvas.getContext('bitmaprenderer');
+ if (!ctx) {
+ return;
+ }
+ ctx.transferFromImageBitmap(bitmap);
+ const blob = await new Promise<Blob | null>((res) => canvas.toBlob(res));
+ if (!blob) {
+ return;
+ }
+ await fileService.writeFile(fileUri, VSBuffer.wrap(new Uint8Array(await blob.arrayBuffer())));
+ openerService.open(fileUri);
+ }
+ });
  registerAction2(class extends Action2 {
  constructor() {
  super({

src/vs/workbench/contrib/terminal/browser/xterm/xtermTerminal.ts

@@ -121,6 +121,14 @@ export class XtermTerminal extends DisposableStore implements IXtermTerminal, II
  }
  get target(): TerminalLocation | undefined { return this._target; }
 
+ get textureAtlas(): Promise<ImageBitmap> | undefined {
+ const canvas = this._webglAddon?.textureAtlas || this._canvasAddon?.textureAtlas;
+ if (!canvas) {
+ return undefined;
+ }
+ return createImageBitmap(canvas);
+ }
+
  /**
  * @param xtermCtor The xterm.js constructor, this is passed in so it can be fetched lazily
  * outside of this class such that {@link raw} is not nullable.

src/vs/workbench/contrib/terminal/common/terminal.ts

@@ -573,6 +573,7 @@ export const enum TerminalCommandId {
  SetDimensions = 'workbench.action.terminal.setDimensions',
  ClearCommandHistory = 'workbench.action.terminal.clearCommandHistory',
  WriteDataToTerminal = 'workbench.action.terminal.writeDataToTerminal',
+ ShowTextureAtlas = 'workbench.action.terminal.showTextureAtlas',
 }
 
 export const DEFAULT_COMMANDS_TO_SKIP_SHELL: string[] = [