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PackLoader

khora_sdk

Struct PackLoader 

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pub struct PackLoader { /* private fields */ }
Expand description

Pack-based asset loader for release mode.

Reads assets from a .pack archive file by seeking to the recorded offset (shifted by PACK_HEADER_SIZE) and reading the specified number of bytes.

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impl PackLoader

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pub fn new(pack_file: File) -> Result<PackLoader, Error>

Validates the leading header and returns a reader bound to pack_file.

Errors:

  • file shorter than PACK_HEADER_SIZE or unreadable,
  • magic doesn’t match PACK_MAGIC (file isn’t a Khora pack),
  • format_version field doesn’t match PACK_FORMAT_VERSION (this runtime can’t read this pack — typically an older runtime reading a newer pack).
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pub fn header(&self) -> &PackHeader

Returns a reference to the parsed header. Useful for diagnostics and for asserting header.asset_count == vfs.asset_count() at startup.

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pub fn write_header( out: &mut impl Write, asset_count: u32, flags: u32, ) -> Result<(), Error>

Writes a fresh 24-byte header at the start of out. Convenience helper for crate::asset::PackBuilder — keeps all the byte- layout knowledge in one module.

Trait Implementations§

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impl AssetIo for PackLoader

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fn load_bytes(&mut self, source: &AssetSource) -> Result<Vec<u8>, Error>

Loads raw bytes from the given asset source.
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impl Debug for PackLoader

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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fn on_start(&mut self, ctx: &mut dyn AppContext)

Called once after the backend is up but before the first update. Apps install their theme / fonts here.
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Called once when the window is closing. Persist state here.
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