QL-Win / QL-Win/QuickLook

Crash when previewing large images

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bug
Dominant language
C#
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Avg merge
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Merged PRs (30d)
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Description

Describe the bug
When attempting to preview a large image file (png/jpg), quicklook crashes. It seems to be images larger than 10mb or so cause the crash.

Expected behavior
Ideally quicklook would handle images of all sizes to preview, or show and error that the image is too large to preview rather than crashing and closing.

Desktop (please complete the following information):

  • OS Version: Windows 10 (multiple versions tested)
  • QuickLook Version: v0.3.7 (from installer)

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the crash in QuickLook v0.3.7 on Windows 10 with PNG and JPG files larger than about 10 MB. Trace the large-image preview path from that reproduction; done means large images preview without crashing, or display an error explaining that the image is too large.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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