Wexos: Imported from avsys wiki

2024-05-01T16:59:54Z

Imported from avsys wiki

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The '''BCLIM''' file format ('''B'''inary '''C'''itra '''L'''ayout '''IM'''age) is used to store layout images on the [[Nintendo 3DS]].

= File Format=
== Header ==
The header is at the end of the file (to align the image data without the need for additional padding). It is always 0x14 bytes.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''File magic'''. Always ''CLIM'' in ASCII.
|-
| 0x04 || UInt16 || {{BOM}}
|-
| 0x06 || UInt16 || '''Header size''', always 0x14.
|-
| 0x08 || UInt32 || '''Version''' of this file.
|-
| 0x0C || UInt32 || '''File size''' in bytes.
|-
| 0x10 || UInt16 || '''Number of data blocks''', always 0x01.
|-
| 0x12 || UInt16 || Padding.
|}

== Image Information ==
A section containing image information comes directly after header. It is always 0x14 bytes long.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''imag'' in ASCII.
|-
| 0x04 || UInt32 || '''Parse information size'''.
|-
| 0x08 || UInt16 || '''Width''' of the texture in pixels.
|-
| 0x0A || UInt16 || '''Height''' of the texture in pixels.
|-
| 0x0C || UInt32 || '''[[#Format|Image format]]'''. [[3DS Image Formats|See here]] for an explanation of all formats.
|}

== Format ==
{| class="wikitable"
! ID !! Name !! Type !! Bits Per Pixel (BPP)
|-
| 0x00 || L8 || Luminance || 8
|-
| 0x01 || A8 || Alpha || 8
|-
| 0x02 || LA4 || Luminance + Alpha || 8
|-
| 0x03 || LA8 || Luminance + Alpha || 16
|-
| 0x04 || HILO8 || ? || 16
|-
| 0x05 || RGB565 || Color || 16
|-
| 0x06 || RGB8 || Color || 32
|-
| 0x07 || RGB5A1 || Color + Alpha || 16
|-
| 0x08 || RGBA4 || Color + Alpha || 16
|-
| 0x09 || RGBA8 || Color + Alpha || 32
|-
| 0x0A || ETC1 || Color || 4
|-
| 0x0B || ETC1A4 || Color + Alpha || 8
|-
| 0x0C || L4 || Luminance || 4
|-
| 0x0D || A4 || Alpha || 4
|}

= Tools =
The following tools can handle BCLIM files:
* [[Every File Explorer]], by [[Gericom]]

[[Category:3DS File Formats]]

BCLIM (File Format) - Revision history

Wexos: Imported from avsys wiki