Embroidery format JEF

JEF Format

JEF Header

Type	Bytes	Value	Description
`u32`	4	0x74 +8 * Color_Changes	Offset into file where stitches begin.
`u32`	4	0x14	Unknown. (version number?)
`char`	14	"20122017218088"	Date
`u8`	1	0x20	Unknown
`u8`	1	0x20	Unknown
`u32`	4	Color Count	Color Count
`u32`	4	Point Count	Point Count
`u32`	4	Hoop Used	Hoop
`u32`	16	Extends	Distances from center of hoop.
`u32`	16	Edge amount for hoop	Distance from default 110 x 110 Hoop, or -1,-1,-1,-1 if does not fit.
`u32`	16	Edge amount for hoop	Distance from default 50 x 50 Hoop, or -1,-1,-1,-1 if does not fit.
`u32`	16	Edge amount for hoop	Distance from default 140 x 200 Hoop, or -1,-1,-1,-1 if does not fit.
`u32`	16	Edge amount for hoop	Distance from custom hoop, or -1,-1,-1,-1 if does not fit.
`u32`	4 * Color_Changes	Magic Number Color Lookup	List of colors changes.
`u32`	4 * Color_Changes	0x0D	The values 0x0D, 0x00, 0x00, 0x00 repeated as many times as there are color changes.

Hoop

Width	Height	Value
110	110	0
50	50	1
140	200	2
126	110	3
200	200	4

JEF Body

Stitch

A stitch is two bytes of X, Y coords in 2s complement between (-127,127)

Commands

If the X value is 0x80 (-128) then the issued value is a command, the command is predicated on the value of Y. Each command is 0x80, 0x??, dx, dy (Except end which simply ends at 0x80, 0x10)

Command	B0	B1
END	0x80	0x10
COLOR_CHANGE	0x80	0x01
STOP	0x80	0x01
JUMP	0x80	0x02
TRIM	0x80	0x02