RES.BIN File format white paper

[ThievingSix]

RES.BIN File Format Deconstruction

[Header]
  [NumberOfFiles - 4 Bytes]        = 0x1C 0x00 0x00 0x00 (0x1C,    28)
  [Bin Header Size - 4 Bytes]      = 0xFA 0x02 0x00 0x00 (0x2FA,   762)
    [File 1 Record Size - 4 Bytes] = 0x0E 0x00 0x00 0x00 (0xE,     14)
      [File Size - 4 Bytes]        = 0x77 0x0E 0x00 0x00 (0xE77,   3703)
      [Unknown - 4 Bytes]          = 0x00 0x00 0x00 0x00 (0x00,    0)
      [File Name - Variant(6)]     = 0x62 0x67 0x2E 0x70
                                     0x6E 0x67           ("bg.png")
    . . .
    [File N Record Size - 4 Bytes] = 0x20 0x00 0x00 0x00 (0x20,    32)
      [File Size - 4 Bytes]        = 0x36 0x0F 0x00 0x00 (0xF36,   3894)
      [Unknown - 4 Bytes]          = 0x5B 0x92 0x03 0x00 (0x3925B, 234075)
      [File Name - Variant(24)]    = 0x73 0x75 0x62 0x5F
                                     0x6D 0x65 0x6E 0x75
                                     0x5F 0x62 0x75 0x74
                                     0x74 0x6F 0x6E 0x5F
                                     0x68 0x69 0x67 0x68
                                     0x2E 0x70 0x6E 0x67 ("sub_menu_button_high.png")
[File 1 Data]
. . .
[File N Data]

[CrowdAds]

[Jan_DK]

The question is, why use a RES.BIN file in application programming ?

Is it not just a way to group a bunch of bitmaps and to make normal png editing impossible(a form of image protection.)

[ThievingSix]

It might, but it seems that you can use it like a tilemap. eg Load the bin file with image.setresource and cycle through them.

Edit: I was thinking, if it was just for image protection I doubt that they wouldn't have some sort of encryption, or even a checksum. As you found out they don't do that for the firmware updates either.

[ThievingSix]

Yes I know double post.

Anyway thanks to Jan_DK finding the calculator application(!) figured out exactly how this is used:

image.setresource("res.bin")
img_button01 = image.load("res/button_01.png")

Not exactly how I imagined it but still useful if you use a lot of images.