Genus Graphics Library
From Just Solve the File Format Problem
(Difference between revisions)
Dexvertbot (Talk | contribs) m (Sample files) |
|||
| Line 3: | Line 3: | ||
|formattype=electronic | |formattype=electronic | ||
|subcat=Archiving | |subcat=Archiving | ||
| − | |extensions={{ext|gx}}, {{ext|gxl}} | + | |extensions={{ext|gx}}, {{ext|gxl}}, others |
}} | }} | ||
| − | '''Genus Graphics Library''' is an archive format created by Genus Microprogramming Inc. | + | '''Genus Graphics Library''' (sometimes called '''GXLib''', or similar) is an archive format created by Genus Microprogramming Inc. |
See also [[PCX Library]]. | See also [[PCX Library]]. | ||
| + | |||
| + | == Format details == | ||
| + | The format allows for the possibility of compression, but it's not clear if any standard compression methods have ever been defined. | ||
== Identification == | == Identification == | ||
| − | Files begin with {{magic|0x01 | + | Files begin with bytes {{magic|0x01 0xca}}, and have {{magic|64 00}} at offset 52. |
| + | |||
| + | The two-byte integer at offset 94 is the number of archive members. If it is nonzero, then the byte at offset 128 is the compression method of the first member:, which is normally 0. | ||
| + | |||
| + | There's a copyright string at offset 2 that usually, but not always, starts with "{{magic|Copyright (c) Genus Microprogramming, Inc. 1988}}". | ||
== Software == | == Software == | ||
| Line 18: | Line 25: | ||
== Sample files == | == Sample files == | ||
* {{DexvertSamples|archive/gxlib}} | * {{DexvertSamples|archive/gxlib}} | ||
| + | |||
| + | * Examples of files with a different copyright string: | ||
| + | ** {{CdTextfiles|nightowl/nopv06/002A/AQUEST1.ZIP|AQUEST1.ZIP}} → *.GGL | ||
| + | ** {{CdTextfiles|nightowl/pdsi006/001A/EGAPITD3.ZIP|EGAPITD3.ZIP}} → *.EGA | ||
| + | |||
| + | * {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/EDUCATE/QWIZTEST.ZIP|QWIZTEST.ZIP}} → GVI.CMP and some other files - Needs investigation. Apparently an incompatible variant of this format. | ||
== Links == | == Links == | ||
Revision as of 16:39, 1 August 2025
Genus Graphics Library (sometimes called GXLib, or similar) is an archive format created by Genus Microprogramming Inc.
See also PCX Library.
Contents |
Format details
The format allows for the possibility of compression, but it's not clear if any standard compression methods have ever been defined.
Identification
Files begin with bytes 0x01 0xca, and have 64 00 at offset 52.
The two-byte integer at offset 94 is the number of archive members. If it is nonzero, then the byte at offset 128 is the compression method of the first member:, which is normally 0.
There's a copyright string at offset 2 that usually, but not always, starts with "Copyright (c) Genus Microprogramming, Inc. 1988".
Software
Sample files
- Examples of files with a different copyright string:
- AQUEST1.ZIP → *.GGL
- EGAPITD3.ZIP → *.EGA
- QWIZTEST.ZIP → GVI.CMP and some other files - Needs investigation. Apparently an incompatible variant of this format.
