FONT (File Format): Difference between revisions

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VisualWikitext
>Aruki
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{| class="wikitable"
{| class="wikitable"
! Offset
! Offset
! Type
! Size
! Size
! Description
! Description
|-
|-
| 0x0
| 0x0
| char[4]
| 4
| 4
| '''"FONT" magic fourCC'''
| '''"FONT" magic fourCC'''
|-
|-
| 0x4
| 0x4
| u32
| 4
| 4
| '''Version'''; see below
| '''Version'''; see below
|-
|-
| 0x8
| 0x8
| u32
| 4
| 4
| '''Max glyph height''' (plus padding, in points)
| {{unknown|'''Unknown'''}}
|-
|-
| 0xC
| 0xC
| s32
| 4
| 4
| '''Min glyph height''' (plus padding, in points)
| '''Line height'''
|-
|-
| 0x10
| 0x10
| 4
| 4
| '''Max glyph width''' (plus padding, in points)
| '''Paragraph upper margin'''
|-
|-
| 0x14
| 0x14
| 4
| 4
| '''Min glyph width''' (plus padding, in points)
| '''Line margin'''
|-
|-
| 0x18
| 0x18
Line 127: Line 132:
| u32
| u32
| 4
| 4
| '''Glyph left padding'''
| '''Left padding'''
|-
|-
| 0x16
| 0x16
Line 137: Line 142:
| u32
| u32
| 4
| 4
| '''Glyph right padding'''
| '''Right padding'''
|-
|-
| 0x1E
| 0x1E
| u32
| u32
| 4
| 4
| '''Glyph width'''
| '''Width'''
|-
|-
| 0x22
| 0x22
| u32
| u32
| 4
| 4
| '''Glyph height'''
| '''Height'''
|-
|-
| 0x26
| 0x26
| u32
| u32
| 4
| 4
| '''Glyph base offset'''
| '''Base offset'''
|-
|-
| 0x2A
| 0x2A

Revision as of 23:06, 26 March 2015

The FONT format defines fonts that can be used to display text in-game.


To do:
Notate differences between different versions of the format. Only Metroid Prime's FONT version is documented at the moment. Character definition structure should be expanded on; there should be a section explaining what each value does, and it should be made more clear which UV coordinate corresponds to which vertex.
This file format needs more research
There's some unknowns in the header, and some of the values in the character definition structure should be double-checked.


Format

Header

Offset Type Size Description
0x0 char[4] 4 "FONT" magic fourCC
0x4 u32 4 Version; see below
0x8 u32 4 Unknown
0xC s32 4 Line height
0x10 4 Paragraph upper margin
0x14 4 Line margin
0x18 4 Unknown
0x1C 2 Unknown
0x1E 4 Font Size (in points)
0x22 N Font name; zero-terminated string
0x22+N 4 TXTR file ID
0x26+N 4 Unknown
0x2A+N 4 Glyph Count
0x2E+N Glyphs (Version 2, Version 4)

Version

Version Game
1 Metroid Prime Kiosk Demo
2 Metroid Prime NTSC 0-00
4 Metroid Prime PAL/Player's Choice and Metroid Prime 2
5 Metroid Prime 3, DKCR

Glyph Entry (Version 2)

Offset Type Size Description
0x0 u16 2 UTF-16 character
0x2 float 4 Left UV coordinate
0x6 float 4 Top UV coordinate
0xA float 4 Right UV coordinate
0xE float 4 Bottom UV coordinate
0x12 u32 4 Left padding
0x16 u32 4 Print head advance
0x1A u32 4 Right padding
0x1E u32 4 Width
0x22 u32 4 Height
0x26 u32 4 Base offset
0x2A u32 4 Kerning index
0x2E End of glyph definition

Glyph Entry (Version 4)

Offset Type Size Description
0x0 u16 2 UTF-16 character
0x2 float 4 Left UV coordinate
0x6 float 4 Top UV coordinate
0xA float 4 Right UV coordinate
0xE float 4 Bottom UV coordinate
0x12 u8 1 Layer Index
  1. TXTR Red channel is fill, Green channel is outline
  2. TXTR Blue channel is fill, Alpha channel is outline
0x13 u32 4 Glyph left padding
0x17 u32 4 Print head advance
0x1B u32 4 Glyph right padding
0x1F u32 4 Glyph width
0x23 u32 4 Glyph height
0x27 u32 4 Kerning index
0x2B End of glyph definition

Kerning Table

This table is at the end of the file, and defines kerning pairs. It starts with a 32-bit count value and then loops the following structure:

Offset Size Description
0x0 2 Character 1
0x2 2 Character 2
0x4 4 Kerning adjust
0x8 End of entry
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