MGR bitmap

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|formattype=electronic
 
|formattype=electronic
 
|subcat=Graphics
 
|subcat=Graphics
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|extensions={{noext}}, {{ext|mgr}}
 
|released=~1984
 
|released=~1984
 
}}
 
}}
== Overview ==
 
 
'''MGR bitmap''' is an image file format associated with the '''ManaGeR''' (or '''MGR''') windowing system.
 
'''MGR bitmap''' is an image file format associated with the '''ManaGeR''' (or '''MGR''') windowing system.
  
== Identification ==
+
== Format ==
Apparently, MGR bitmap files do not conventionally have a filename extension.
+
"Old format" files have a 6-byte header, and "modern format" files have an 8-byte header.
  
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== Identifiers ==
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The MGR software does not appear to use any filename extension for this format, but some third-party software uses '''.mgr'''.
 +
 +
== Identification ==
 
Files begin with a two-byte ASCII signature:
 
Files begin with a two-byte ASCII signature:
 
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{| class="wikitable"
"yz" = modern format, 8-bit aligned
+
! Signature
"yx" = modern format, squeezed
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! Format
"xz" = old format, 1-bit, 32-bit aligned
+
|-
"zz" = old format, 1-bit, 16-bit aligned
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|"yz" || modern format, 8-bit aligned
"zy" = old format, 8-bit, 16-bit aligned
+
|-
"xy" = same as "zy"?
+
|"yx" || modern format, squeezed
 +
|-
 +
|"xz" || old format, 1-bit, 32-bit aligned
 +
|-
 +
|"zz" || old format, 1-bit, 16-bit aligned
 +
|-
 +
|"zy" || old format, 8-bit, 16-bit aligned
 +
|-
 +
|"xy" || same as "zy"?
 +
|}
  
 
== Specifications ==
 
== Specifications ==
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== Software ==
 
== Software ==
* [http://netpbm.sourceforge.net/ Netpbm]: mgrtopbm, pbmtomgr
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* [[Konvertor]]
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* [[Netpbm]]: mgrtopbm, pbmtomgr
 +
* [[XnView]]
 
* [ftp://sunsite.unc.edu/pub/linux/apps/MGR/mgrsrc-0.69.tgz MGR source code]
 
* [ftp://sunsite.unc.edu/pub/linux/apps/MGR/mgrsrc-0.69.tgz MGR source code]
  
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== Links ==
 
== Links ==
* [[Wikipedia:ManaGeR|Wikipedia: ManaGeR]]
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* [[Wikipedia: ManaGeR]]
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[[Category:Sun]]

Revision as of 15:59, 29 March 2016

File Format
Name MGR bitmap
Ontology
Extension(s) (none), .mgr
Released ~1984

MGR bitmap is an image file format associated with the ManaGeR (or MGR) windowing system.

Contents

Format

"Old format" files have a 6-byte header, and "modern format" files have an 8-byte header.

Identifiers

The MGR software does not appear to use any filename extension for this format, but some third-party software uses .mgr.

Identification

Files begin with a two-byte ASCII signature:

Signature Format
"yz" modern format, 8-bit aligned
"yx" modern format, squeezed
"xz" old format, 1-bit, 32-bit aligned
"zz" old format, 1-bit, 16-bit aligned
"zy" old format, 8-bit, 16-bit aligned
"xy" same as "zy"?

Specifications

Software

Sample files

Links

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Namespaces

Variants
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