Common nn::ui2d
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nn::font and nn::ui2d share similar file structures. Some are used in nn::font Bffnt as well as nn::ui2d Bflyt and Bflan. This style of file may be a holdover from the 32-bit era, as newer ui2d formats like Bnvg have an nn::util style.
Header
The base struct of an nn::ui2d style file.
| Offset | Size | Type | Description |
|---|---|---|---|
| 0x0 | 0x4 | u32 | Magic (dependent on file type) |
| 0x4 | 0x2 | u16 | Endianess (0xfffe in big-endian) |
| 0x6 | 0x2 | u16 | Header size |
| 0x8 | 0x2 | u16 | Micro version |
| 0xa | 0x1 | u8 | Minor version |
| 0xb | 0x1 | u8 | Major version |
| 0xc | 0x4 | u32 | File size |
| 0x10 | 0x2 | u16 | Section count |
| 0x12 | 0x2 | u16 | Reserved |
Section
The base struct of a sub section in an nn::ui2d style file.
| Offset | Size | Type | Description |
|---|---|---|---|
| 0x0 | 0x4 | u32 | Magic (dependent on file type) |
| 0x4 | 0x4 | u32 | Section size |
User Data
Typically only found in Bflyt and Bflan.
Section
| Offset | Size | Type | Description |
|---|---|---|---|
| 0x0 | 0x8 | Ui2dSection | Ui2d Section |
| 0x8 | 0x2 | u16 | User data count |
| 0xa | 0x2 | u16 | Reserved |
User Data Entry
Array immediately follows User Data Section header.
| Offset | Size | Type | Description |
|---|---|---|---|
| 0x0 | 0x4 | u32 | Name offset (relative to this entry) |
| 0x4 | 0x4 | u32 | Data array offset (relative to this entry) |
| 0x8 | 0x2 | u16 | Data count |
| 0xa | 0x1 | u8 | Data type |
| 0xb | 0x1 | u8 | Reserved |
User Data Type
| Name (unofficial) | Value | Description |
|---|---|---|
| String | 0x0 | |
| S32 | 0x1 | |
| Float | 0x2 | |
| SystemData | 0x3 | Unknown |