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Editorial Team
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Asked: 2026-05-20T23:34:29+00:00

Most games come with their resources (models, textures, etc.) packed into special files (like

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Most games come with their resources (models, textures, etc.) packed into special files (like .pk3 files in Quake 3 for example). Apparently, those files somehow get “mounted” and are used as if they were separate file systems.

I’d like to know how this is achieved. The only strategy I came up with so far is placing offset-size information in the file’s header, then memory-mapping the file and accessing the resources as if they were independent write-protected chunks of memory.

I’d like to know if my strategy is viable and if there are better alternatives.

Thanks!

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1 Answer

  1. Editorial Team

    Your strategy is quite reasonable; in fact, it’s an exact analogue of what a filesystem driver does with a raw block device. What problems are you having with that implementation?

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