Ikura GDL (archive): Difference between revisions

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[[Category:Archives]]
[[Category:Archives]]
Note: Because no extension is used on files, this was best way I could describe the format (referring to wiki page title).
This is a [[Ikura GDL]] format.
 
Used in the following games:
* Amorous Professor Cherry
* Bazooka Cafe
* Cat Girl Alliance
* Chain
* Come See Me Tonight
* Crescendo
* Do You Like Horny Bunnies
* Family Project
* Figures of Happiness
* Heart de Roommate
* Hitomi -My Stepsister-
* Idols Galore
* I'm Gonna Nurse You
* Jewel Knights
* Let's Meow Meow
* Pick Me, Honey
* Private Nurse
* Sagara Family
* Secret Wives Club
* Slave Pageant
* Snow Sakura
* Tottemo Pheromone
* Tsukushite Agechau 4


Common file names:
Common file names:
* DATA !Different Format!
* DATA  
* GGD
* GGD
* ISF
* ISF
* MIDI
* SE
* SE
* VOICE
* VOICE, 1, 2
* WMSC
* WMSC


Uncommon file names:<br />
(Trabulance Titles)
* TRGRP
* TRMSC
* TRSE
* TRSNR
(Kana -Little Sister-)
* DRSDAT
* DRSGRP
* DRSEF
==Structure==
{| class="wikitable"
{| class="wikitable"
!colspan="15"|Format #1
|-
!colspan="15"|Header
!colspan="15"|Header
|-
|-
! Size !! Content
! Size !! Content !! Description
|-
|-
| 8Bytes || Magic/ID
| 2Bytes || Index Size ||
|-
|-
| 4Bytes|| File Count
!colspan="15"|Index Entry
|-
|-
| 4Bytes|| Index Size?
! Size !! Content !! Description
|-
|-
| 12Bytes|| Archive Name
| 12Bytes || File Name || Unused space is filled with 0x00
|-
|-
| 4Bytes|| Unknown/Static?
| 4Bytes|| Offset ||
|-
!colspan="15"| Last Index Entry
|-
! size !! Content !! Description
|-
| 12bytes || Padding || (0x00)
|-
| 4bytes || Total Archive Size ||
|}
|}


{| class="wikitable"
{| class="wikitable"
!colspan="15"|Index
!colspan="15"|Format #2
|-
!colspan="15"|Header
|-
! Size !! Content !! Description
|-
|-
! Size !! Content
| 8Bytes || Magic/ID || 'SM2MPX10'
|-
|-
| 12Bytes || File Name
| 4Bytes|| File Count ||
|-
|-
| 4Bytes|| Offset
| 4Bytes|| Index Size ||
|-
|-
| 4Bytes|| File Size
| 12Bytes|| Archive Name || Unused space is filled with 0x00
|-
| 4Bytes|| Unknown/Static? || hex:20 00 00 00
|-
!colspan="15"|Index Entry
|-
! Size !! Content || Description
|-
| 12Bytes || File Name || Unused space is filled with 0x00
|-
| 4Bytes|| Offset ||
|-
| 4Bytes|| File Size ||
|}
|}


SM2MPX10
Based on the fact that format #1 seems more common with older games suggest this is the earlier version of the format thus labeled as format #1. The second format appears more often in newer releases thus is labeled as format #2. There are some games that even use both at the same time. Further testing could be done to see if any games can or cannot read either of these known formats. This could help gauge what era the licensed engine game from.
Has some unknown values in header. Data is storage only.
Possibly to help predict what formats are expected or how the engine handles it's data.
 
As of this revision, in format #2 the last 4 bytes in the header are still unknown but so far, appear static in most, if not all format 2 archives. This could be some sort of version or support check but testing would need
to be done if this value means anything, if changing does anything, or if it is even read and stored in memory.
 
== Tools ==
[https://orin.page/projects/code/ikuratools/releases Downloads]

Latest revision as of 16:35, 4 August 2024

This is a Ikura GDL format.

Common file names:

  • DATA
  • GGD
  • ISF
  • MIDI
  • SE
  • VOICE, 1, 2
  • WMSC

Uncommon file names:
(Trabulance Titles)

  • TRGRP
  • TRMSC
  • TRSE
  • TRSNR

(Kana -Little Sister-)

  • DRSDAT
  • DRSGRP
  • DRSEF

Structure

Format #1
Header
Size Content Description
2Bytes Index Size
Index Entry
Size Content Description
12Bytes File Name Unused space is filled with 0x00
4Bytes Offset
Last Index Entry
size Content Description
12bytes Padding (0x00)
4bytes Total Archive Size
Format #2
Header
Size Content Description
8Bytes Magic/ID 'SM2MPX10'
4Bytes File Count
4Bytes Index Size
12Bytes Archive Name Unused space is filled with 0x00
4Bytes Unknown/Static? hex:20 00 00 00
Index Entry
Size Content Description
12Bytes File Name Unused space is filled with 0x00
4Bytes Offset
4Bytes File Size

Based on the fact that format #1 seems more common with older games suggest this is the earlier version of the format thus labeled as format #1. The second format appears more often in newer releases thus is labeled as format #2. There are some games that even use both at the same time. Further testing could be done to see if any games can or cannot read either of these known formats. This could help gauge what era the licensed engine game from. Possibly to help predict what formats are expected or how the engine handles it's data.

As of this revision, in format #2 the last 4 bytes in the header are still unknown but so far, appear static in most, if not all format 2 archives. This could be some sort of version or support check but testing would need to be done if this value means anything, if changing does anything, or if it is even read and stored in memory.

Tools

Downloads