TGA - Revision history

Dexvertbot: /* Identification */

2023-12-28T04:40:07Z

‎Identification

Dexvertbot: /* Sample files */

2023-12-28T04:39:47Z

‎Sample files

Eiim: Add Kaitai Struct

2023-09-15T01:58:17Z

Add Kaitai Struct

Jsummers: Deleted X16/X32 section (see Discussion)

2020-12-21T20:33:38Z

Deleted X16/X32 section (see Discussion)

Jsummers at 14:28, 9 December 2020

2020-12-09T14:28:05Z

Jsummers: Updated/replaced some links

2020-12-09T14:26:12Z

Updated/replaced some links

Moldy Arachnid at 01:29, 30 November 2020

2020-11-30T01:29:58Z

Moldy Arachnid at 01:17, 30 November 2020

2020-11-30T01:17:33Z

Moldy Arachnid: /* Software */

2020-11-30T01:14:52Z

‎Software

Moldy Arachnid: sort of a trivia section, but maybe not

2020-11-30T01:13:11Z

sort of a trivia section, but maybe not

@@ Line 48: / Line 48: @@
 TGA files have no signature at the beginning of the file. They can be identified fairly reliably by testing whether the first 18 bytes have sensible values for TGA format, but that is nontrivial.
-Some, but not all, TGA files have a signature at the ''end'' of the file. In that case, the last 18 bytes of the file are the ASCII characters "<code>TRUEVISION-XFILE.</code>", followed by a NUL byte (<code>0x00</code>). An example of a file ending in <code>TRUEVISION-XFILE.[0x00]</code> is seen at telparia.com/fileFormatSamples/image/tga/ (linked below in &sect;Sample files) > https://telparia.com/fileFormatSamples/image/tga/test.tga.
+Some, but not all, TGA files have a signature at the ''end'' of the file. In that case, the last 18 bytes of the file are the ASCII characters "<code>TRUEVISION-XFILE.</code>", followed by a NUL byte (<code>0x00</code>). An example of a file ending in <code>TRUEVISION-XFILE.[0x00]</code> is seen at {{DexvertSamples|image/tga}} (linked below in &sect;Sample files) > https://sembiance.com/fileFormatSamples/image/tga/test.tga.
 == Versions ==

@@ Line 80: / Line 80: @@
 * http://downloads.oldschoolbg.com/cstrike/gfx/env/
 * https://github.com/timfel/tombexcavator/tree/master/data/TGA
-* https://telparia.com/fileFormatSamples/image/tga/
+* {{DexvertSamples|image/tga}}
 == Links ==

@@ Line 7: / Line 7: @@
 |wikidata={{wikidata|Q1063976}}
 |released=1984
 }}
 '''TGA''' ('''Targa''') is a raster image file format developed by Truevision, Inc. (then named EPICenter) in 1984. Designed for use with MS-DOS color applications, TGA is the native format of Truevision's TARGA (Truevision Advanced Raster Graphics Adapter) boards, which were some of the first graphic cards for IBM-compatible PCs to support 24-bit RGB color encoding (sometimes termed ''truecolor'').

← Older revision		Revision as of 20:33, 21 December 2020
Line 55:		Line 55:

	It also adds an optional "Developer Area" segment, which supports arbitrary custom data. A custom data item is tagged with a 16-bit integer identifier, similar to a [[TIFF]] tag. There does not appear to be any published list of TGA tags, though tag 20 seems to be used for [[Photoshop Image Resources]].		It also adds an optional "Developer Area" segment, which supports arbitrary custom data. A custom data item is tagged with a 16-bit integer identifier, similar to a [[TIFF]] tag. There does not appear to be any published list of TGA tags, though tag 20 seems to be used for [[Photoshop Image Resources]].
−
−	~~== Note about .X16 files and .X32 files ==~~
−	An "image/tga" file may have been found in a mysterious [[X16]] file; see [https://archive.org/details/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000 Gary the Swamp Frog's Great Geometry Adventure] > [https://ia600106.us.archive.org/view_archive.php?archive=/4/items/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso files in the ISO] > [https://archive.org/download/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso/XTRAS%2FMIXTARGA.X16 MIXTARGA.X16] ("<code>TRUEVISION-XFILE.0x00</code>").

	== Specifications ==		== Specifications ==

@@ Line 12: / Line 12: @@
 Most TGA files are quite simple, but the format has the potential to be fairly complex.
-TGA images are normally either uncompressed, or compressed with [[run-length encoding]]. Additional compression schemes may exist.
+TGA images are either uncompressed, or compressed with [[run-length encoding]].
 == Format details ==

@@ Line 5: / Line 5: @@
 |locfdd={{LoCFDD|fdd000179}}, {{LoCFDD|fdd000180}}
 |pronom={{PRONOM|x-fmt/367}}, {{PRONOM|fmt/402}}
 |released=1984
 }}
@@ Line 77: / Line 78: @@
 == Sample files ==
 * http://www.fileformat.info/format/tga/sample/index.htm
-* http://samples.libav.org/image-samples/TGA/
+* https://samples.libav.org/image-samples/TGA/
 * http://links.uwaterloo.ca/Repository/TGA/
-* http://www.virtualservidores.com/cstrike/gfx/env/ - dead link (2020-11-30 12:31 AM GMT)
+* http://downloads.oldschoolbg.com/cstrike/gfx/env/
-* [http://code.google.com/p/tombexcavator/source/browse/#svn%2Ftrunk%2Fdata%2FTGA tombexcavator samples]
+* https://github.com/timfel/tombexcavator/tree/master/data/TGA
 * https://telparia.com/fileFormatSamples/image/tga/
@@ Line 88: / Line 89: @@
 * [http://www.paulbourke.net/dataformats/tga/ Creating TGA Image files] By Paul Bourke, 1996.
 * [https://twitter.com/angealbertini/status/535565222652948480/photo/1 TGA format chart]

@@ Line 56: / Line 56: @@
 == Note about .X16 files and .X32 files ==
-An "image/tga" file was found in a mysterious [[X16]] file. See [https://archive.org/details/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000 Gary the Swamp Frog's Great Geometry Adventure] > [https://ia600106.us.archive.org/view_archive.php?archive=/4/items/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso files in the ISO] > [https://archive.org/download/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso/XTRAS%2FMIXTARGA.X16 MIXTARGA.X16])
+An "image/tga" file was found in a mysterious [[X16]] file; see [https://archive.org/details/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000 Gary the Swamp Frog's Great Geometry Adventure] > [https://ia600106.us.archive.org/view_archive.php?archive=/4/items/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso files in the ISO] > [https://archive.org/download/Gary_the_Swamp_Frogs_Great_Geometry_Adventure_Ohio_Distinctive_Software_2000/Gary%20the%20Swamp%20Frog%27s%20Great%20Geometry%20Adventure%20%28Ohio%20Distinctive%20Software%29%282000%29.iso/XTRAS%2FMIXTARGA.X16 MIXTARGA.X16].
 == Specifications ==
@@ Line 88: / Line 88: @@
 * [http://www.paulbourke.net/dataformats/tga/ Creating TGA Image files] By Paul Bourke, 1996.
 * [https://twitter.com/angealbertini/status/535565222652948480/photo/1 TGA format chart]

@@ Line 65: / Line 65: @@
 == Software ==
-TGA is widely supported. Software listed here has been arbitrarily selected.
+TGA is widely supported. Software listed here has been semi-arbitrarily selected.
 * [[Netpbm]]: pamtotga, tgatoppm
 * [[ImageMagick]]

@@ Line 54: / Line 54: @@
 It also adds an optional "Developer Area" segment, which supports arbitrary custom data. A custom data item is tagged with a 16-bit integer identifier, similar to a [[TIFF]] tag. There does not appear to be any published list of TGA tags, though tag 20 seems to be used for [[Photoshop Image Resources]].
 == Specifications ==
@@ Line 70: / Line 73: @@
 * {{Deark}}
 * [http://snisurset.net/code/abydos/ abydos]
 == Sample files ==