Puma Street Soccer PPM - Revision history

Sembiance: software

2025-12-23T01:31:21Z

software

Sembiance: /* Sample files */

2025-12-23T01:31:00Z

‎Sample files

Jsummers: /* Format details */

2025-11-23T14:48:51Z

‎Format details

Jsummers: /* Format details */

2025-09-27T13:48:30Z

‎Format details

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|ppm}} |released=~1998 }} Puma Street Soccer is a video game developed by Pixelstorm. It has an associate..."

2025-09-20T15:39:47Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|ppm}} |released=~1998 }} Puma Street Soccer is a video game developed by Pixelstorm. It has an associate..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Graphics
|extensions={{ext|ppm}}
|released=~1998
}}
Puma Street Soccer is a video game developed by Pixelstorm. It has an associated '''.PPM''' texture graphics format.

P.S.S. PPM is a variant of [[Netpbm formats|Netpbm binary PPM (P6)]] format.

It's not certain that this format is specific to Puma Street Soccer, but no other use has been found.

== Format details ==
P.S.S. PPM is structurally the same as Netpbm PPM, except that the signature is "<code>PX</code>" instead of "<code>P6</code>". However, the images are apparently not interpreted in the same way. One possibility is that they are deliberately obfuscated.

== Identification ==
Files start with ASCII "{{magic|PX}}", followed by a newline (<code>0x0a</code>).

In practice, the second line always seems to be a comment line. The following examples have been observed:

# Created by Paint Shop Pro
# Created by Paint Shop Pro 5
# Created by Jasc BatchMaster
# Created by Jasc Image Robot

It seems likely that these comments are misleading.

== Sample files ==
* Puma Street Soccer 1.1 demo for Windows 95: [https://archive.org/details/PC_Action_Issue_80_Estate_1999 PC Action Issue 80] → Puma Street Soccer/DATA1.CAB → Program_Executable_Files/data/texture_3d/...
* {{DiscMasterLink|search?detection=50580a2320*&sortBy=b3sum&showItemName=showItemName|DiscMaster search}}

[[Category:Game data files]]

← Older revision		Revision as of 01:31, 23 December 2025
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	It seems likely that these comments are misleading.		It seems likely that these comments are misleading.
		+
		+	== Software ==
		+	* {{Deark}}

	== Sample files ==		== Sample files ==

@@ Line 14: / Line 14: @@
 P.S.S. PPM is structurally the same as Netpbm PPM, except that the signature is "<code>PX</code>" instead of "<code>P6</code>".
-The images are lightly encrpyted with a repeating 255-byte ''xor'' key. The key can be found in some files that have a sufficient number of consecutive black pixels (such as the end of {{DiscMasterLink|view/22881/PC%20Action%20Issue%2080%20(Estate%201999).ISO/puma%20street%20soccer/data1.cab/Program_Executable_Files/data/texture_3d/Creol/_Thand_s.ppm|this file}}), or generated. The first key byte is 0xb5. To derive the next byte, right-shift the current byte by 1 bit, then if the bit that was shifted off was 1, xor with 0xb8.
+The images are lightly encrypted with a repeating 255-byte ''xor'' key. The key can be found in some files that have a sufficient number of consecutive black pixels (such as the end of {{DiscMasterLink|view/22881/PC%20Action%20Issue%2080%20(Estate%201999).ISO/puma%20street%20soccer/data1.cab/Program_Executable_Files/data/texture_3d/Creol/_Thand_s.ppm|this file}}), or generated. The first key byte is 0xb5. To derive the next byte, right-shift the current byte by 1 bit, then if the bit that was shifted off was 1, xor with 0xb8.
 == Identification ==

@@ Line 31: / Line 31: @@
 * Puma Street Soccer 1.1 demo for Windows 95: [https://archive.org/details/PC_Action_Issue_80_Estate_1999 PC Action Issue 80] → Puma Street Soccer/DATA1.CAB → Program_Executable_Files/data/texture_3d/...
 * {{DiscMasterLink|search?detection&#x3d;50580a2320*&amp;sortBy&#x3d;b3sum&amp;showItemName&#x3d;showItemName|DiscMaster search}}
 [[Category:Game data files]]

@@ Line 12: / Line 12: @@
 == Format details ==
-P.S.S. PPM is structurally the same as Netpbm PPM, except that the signature is "<code>PX</code>" instead of "<code>P6</code>". However, the images are apparently not interpreted in the same way. One possibility is that they are deliberately obfuscated.
+P.S.S. PPM is structurally the same as Netpbm PPM, except that the signature is "<code>PX</code>" instead of "<code>P6</code>".
 == Identification ==