22 lines
970 B
TypeScript
22 lines
970 B
TypeScript
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/**
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* Decide whether a terminal should postpone creating its WebGL renderer until
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* the pane is actually visible.
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*
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* Every terminal that loads the WebGL addon holds a live WebGL context for its
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* whole lifetime. Batch-connecting several hosts mounts all their panes at once,
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* so without deferral the renderer creates N WebGL contexts back-to-back on the
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* main thread (and N contexts contend for the GPU, which is also the root of the
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* "garbled / 花屏" corruption in #1049/#1063). A pane that mounts hidden does not
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* need a renderer yet — it buffers output via xterm's default DOM renderer and
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* upgrades to WebGL the moment it becomes visible.
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*
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* Visible panes (single connect, the active tab of a batch) keep the current
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* behavior: WebGL is created immediately.
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*/
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export function shouldDeferWebglUntilVisible(opts: {
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useWebGLAddon: boolean;
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initiallyVisible: boolean;
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}): boolean {
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return opts.useWebGLAddon && !opts.initiallyVisible;
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}
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