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A PS2 Icon parsing library or client
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yellows111 d57d9129de Bumped RLE raw-copy threshold by 0x100 
the icons that Gauntlet: Dark Legacy uses for it's save games are rarely even worth being compressed, considering that it only saves around 2900 bytes from just leaving it uncompressed. However, the fact that it's still compressed while still parsing properly ONLY with this change makes me think many others have had this constant wrong for a while. Could it be lower? needs research.

* changed a space for a no-break space in a file input description to make it flow better when text is split.

I was considering making this 0.8.0+u1, but eeh, nah.
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README.md

icondumper2 (working title)

A JavaScript library (sorta) to read PS2 icons, and their related formats.

What is a "PS2 icon"?

A set of vertices with may or may not include a texture while defining colours for those vertices.

Why?

Current implementations had some issues with rendering some icons. These were mostly:

  • Not rendering any color for texture type 3.
  • Failing to decompress some specific RLE-compressed icons. (types above 8)
  • Requires writing/reading a specific format for successful output of data.

As of writing, there was no exporter that exists for the format that exhibited one of these problems.

icondumper2 is the result of me trying to avoid these problems.

What it supports:

  • EMS Memory Adapter export files (.psu)
  • PS3 virtual memory card export files (.psv)
  • SharkPort export files (.sps)
  • X-Port export files (.xps)
  • CodeBreaker Save export files (.cbs)
  • Max Drive "PowerSave"/export files (.max)
  • PS2 icons (.ico, .icn)
  • PS2D format (icon.sys)

What can it do:

  • Allow any file in a supported virtual filesystem (such as those from export files) to be read.
  • Warn of invalid icon.sys display names.
  • Export the icon model, with all seperate shapes included as a JavaScript Object.
  • CommonJS (that includes node!) module exporting while still being compatible with other JavaScript implementations.
  • Convert a 128x128x16 BGR5A1 bitmap to a standard RGB5A1 format.
  • Convert an icon or a set of icons to glTF 2, with textures saved as PNG.
  • Decompress any LZARI-formatted data.

What it doesn't do:

  • Create, manipulate or otherwise taint save files.
  • Modify any original input files.
  • Use any implementation-specific features.

Client compatibility:

The library requires use of const, let and class declarations.

Any JavaScript implementation should work if they support all three of these declarations.

Tested clients:

  • Chrome (or Blink-based browser) 49 (or higher) - HTML reference client
  • Firefox (or Gecko-based browser) 45 (or higher) - HTML reference client
  • Node.js 13 (or higher) - Example client and glTF 2 exporter.

Why "icondumper2"?

Because it replaced what was left of icondumper (1).

Included files:

File Description
icon.js The library itself.
index.js Node.js example client.
gltf-exporter.js Node.js client to export icons to glTF 2.
index.htm HTML reference client.
lzari.js A LZARI decompression-only library.

Included example files:

Directory Description Formats
/example_001 A tetrahedron with all 3 base colors set. PSU, SPS