Memory card icon (.ico)

Verified against: the NTSC-U disc's WARRIORS.WAD (entry warr.ico, 79,128 bytes). Disc check made with coney-tools extract (2026-10-07), counts only.

Purpose

The icon the PS2's memory card browser shows for the game's save: a small 3D model that morphs between shapes, with one texture. The game copies the file into the save folder as WARR.ICO (Save); it never parses it, so there is no loader in the executable. The format is the console's own, documented publicly by the homebrew community; this page records what this file holds.

Original structure

None in the game: the console's browser reads the file. Save has where the game copies it.

Data

All values little-endian. Fixed-point values are 4.12 (4096 = 1.0). Inferred from the public format; the disc file reads exactly to its end this way (disc check, corroboration).

Part	Size	Contents
Header	20	u32 0x00010000, u32 shape count (8), u32 texture type (7), u32 0, u32 vertex count (576)
Vertices	vertices × (8 × shapes + 16)	per vertex: one s16 x, y, z, w position per shape, an s16 normal (x, y, z, w), s16 u, v and an RGBA colour (128 = full)
Animation header	20	u32 1, u32 frame length (100), f32 speed (0.5), u32 play offset (0), u32 frame count (8)
Frames		per frame {u32 shape, u32 key count} and that many {f32 time, f32 weight} keys
Texture	32,768	128 × 128, 16-bit A1B5G5R5 (red in the low bits); uncompressed because bit 3 of the texture type is clear

The vertices form a triangle list (every three vertices one triangle). On this icon each frame fades one shape in and the previous one out over 14.0625 time units.

Coney's implementation

coney-tools extract (type data) writes data/icon/warr.gltf (shape 0, the other shapes as morph targets), warr.png and warr.json (header and animation) (python/src/coney_tools/ps2icon.py). The engine does not need the icon.

Open questions

• None for extraction. How the browser maps the frames' time units to seconds was not checked.