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1,926 bytes removed ,  12:00, 21 August 2009
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== *.ppm FILES ==
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Flipnote Studio uses 3 different file extensions:
{| class="wikitable"
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*[[Flipnote Files\PPM|.PPM]] - these are the animation files themselves
|- style="background-color: #ddd;"
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*[[Flipnote Files\LST|.LST]] - This is a list of the files in the current directory
! Start
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*[[Flipnote Files\PLS|.PLS]] - These are the sticker files, and the recently edited file.
! Length
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! Description
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|-
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| 0x0000
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| 4
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| Magic (should be PARA)
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|-
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| 0x0004
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| 4
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| Size of animation-section
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|-
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| 0x0008
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| 4
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| Offset audio-data
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|-
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| 0x000C
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| 2
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| # of frames
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|-
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| 0x000E
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| 2
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| Unknown - all files looked at so far has this field set to 24 00 hex.
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|-
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| 0x0010
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| 2
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| Is locked? - 0 open, 1 locked
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|-
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| 0x0012
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| 2
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| Preview frame number ??
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|-
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| 0x0014
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| 22
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| Original author name (UCS-2)
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|-
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| 0x002A
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| 22
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| Author name (UCS-2)
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|-
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| 0x0040
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| 22
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| User name (UCS-2)
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|-
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| 0x0056
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| 8
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| Original author ID
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|-
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| 0x005E
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| 8
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| Edit Author ID - the last user to save the file
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|-
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| 0x0066
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| 18
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| Original File-name - see notes on format
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|-
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| 0x0078
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| 18
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| File-name - see notes on format
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|-
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| 0x008A
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| 8
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| Mirrored author ID ??
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|-
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| 0x0092
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| 8
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| Partial File name? - see notes on format
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|-
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| 0x009A
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| 6
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| Unknown - possibly date information
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|-
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| 0x00A0
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| 1536
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| Preview Bitmap (4 bits/pixel).
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|}
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The file name seems to be stored in the file header 3 times:
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*Original file name 0x0066
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*Current file name 0x0078
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*Partial file name 0x0092
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The file name is stored in 3 parts:
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*3 hex bytes, the first byte's high nibble is not the same as the first byte of the file name
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*13 bytes for the central part of the file name
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*2 bytes for the last part of the file name.
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For the file name : G35B20_0909841CDBEB1_002
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*First location: D3 5B 20 30 39 30 39 38 34 31 43 44 42 45 42 31 00 00
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*Second location: D3 5B 20 30 39 30 39 38 34 31 43 44 42 45 42 31 02 00
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*Last location: D3 5B 20 09 09 84 1C DB
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=== Palette: ===
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{| class="wikitable"
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|- style="background-color: #ddd;"
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! Hex
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! Color
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|-
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| 0x0
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| ??
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|-
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| 0x1
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| Dark grey
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|-
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| 0x2
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| White
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|-
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| 0x3
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| Light grey
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|-
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| 0x4
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| Light red
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|-
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| 0x5
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| Dark red
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|-
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| 0x6
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| Pink
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|-
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| 0x7
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| Pure green
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|-
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| 0x8
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| Pure blue
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|-
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| 0x9
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| Purple
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|-
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| 0xA
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| Light blue
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|-
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| 0xB
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| Pure green
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|-
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| 0xC
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| Magenta
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|-
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| 0xD
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| Pure green
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|-
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| 0xE
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| Pure green
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|-
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| 0xF
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| Pure green
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|}
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The preview image is a 64x48 image stored in a 16 colour tile way, with each 8x8 tile taking up 32 bytes of the file.
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Here's two preview images I (blasty) decoded from some PPM files.
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[[Image:ppm_1.png]] [[Image:ppm_2.png]]
 
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