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

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