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+
+#------------------------------------------------------------------------------
+# $File: playdate,v 1.1 2022/11/04 13:34:48 christos Exp $
+#
+# Various native file formats for the Playdate portable video game console.
+#
+# These are unofficially documented at
+# https://github.com/jaames/playdate-reverse-engineering
+#
+# The SDK is a source for many test files, and can be used to
+# create others. https://play.date/dev/
+
+
+# pdi: static image
+0 string Playdate\ IMG Playdate image data
+>12 belong&0x80 0x80 (compressed)
+>>20 lelong x %d x
+>>24 lelong x %d
+>12 belong&0x80 0x00 (uncompressed)
+>>16 leshort x %d x
+>>18 leshort x %d
+
+# pdt: multiple static images
+0 string Playdate\ IMT Playdate image data set
+>12 belong&0x80 0x80 (compressed)
+>>20 lelong x %d x
+>>24 lelong x %d,
+>>28 lelong x %d cells
+>12 belong&0x80 0x00 (uncompressed)
+>>20 lelong x tile grid %d x
+>>24 lelong x %d
+
+# pds: string tables
+0 string Playdate\ STR Playdate localization strings
+>12 belong&0x80 0x80 (compressed)
+>12 belong&0x80 0x00 (uncompressed)
+
+# pda: audio
+0 string Playdate\ AUD Playdate audio file
+>12 lelong&0xffffff x %d Hz,
+>15 byte 0 unsigned, 8-bit PCM, 1 channel
+>15 byte 1 unsigned, 8-bit PCM, 2 channel
+>15 byte 2 signed, 16-bit little-endian PCM, 1 channel
+>15 byte 3 signed, 16-bit little-endian PCM, 1 channel
+>15 byte 4 4-bit ADPCM, 1 channel
+>15 byte 5 4-bit ADPCM, 2 channel
+
+# pda: video
+0 string Playdate\ VID Playdate video file
+>24 leshort x %d x
+>26 leshort x %d,
+>16 leshort x %d frames,
+>20 lefloat x %.2f FPS
+
+# pdz: executable package
+# Not a lot we can do, as it's a stream of entries with no summary information.
+0 string Playdate\ PDZ Playdate executable package