ijpds formats.book - Kodak

Byte Position Bytes Field Name Description
Chapter 4. Record Formats
Compressed Character Definition (CCD)
8 1 Reserved This field is unused and must contain all binary zeros.
9-10 2 Width A binary number representing the width of the uncompressed
character data to be combined into the RIP frame buffer. The
range is 0 to 65535, although the practical size is limited by the
page size and font memory limitations of the data station.
11-12 2 Height A binary number representing the height of the uncompressed
character data to be combined into the RIP frame buffer. The
range is 0 to 65535, although the practical size is limited by the
page size and font memory limitations of the data station.
Each character may have a different height and width, eliminating
the need to supply data to position the character inside the
character cell. If the CCD has a width or height of zero, a blank
character is defined. No data is combined into the frame buffer of
the RIP for characters with a width and/or height of zero.
13-16 4 X Offset A signed binary number that defines the number of dots to the left
side of the bounding box of the character from the X position of the
current cursor. The X offset moves relative to the font’s orientation.
The range is -2,147,483,647 to 2,147,483,647, although useful
values are limited by the page size of the RIP or Super RIP.
17-20 4 Y Offset A signed binary number that defines the number of dots to the top
side of the bounding box of the character from the Y position of the
current cursor. The Y offset moves relative to the font’s orientation.
The range is -2,147,483,647 to 2,147,483,647, although useful
values are limited by the page size of the RIP or Super RIP.
21-24 4 X Escapement A signed binary number that defines the direction and distance to
the left side of the next character cell from the X position of the
current character. The X escapement moves relative to the font’s
orientation. The range is -2,147,483,647 to 2,147,483,647,
although useful values are limited by the page size of the RIP or
Super RIP.
25-28 4 Y Escapement A signed binary number that defines the direction and distance to
the starting position of the next character cell from the Y position of
the current character. The Y escapement moves relative to the
font’s orientation. The range is -2,147,483,647 to 2,147,483,647,
although useful values are limited by the page size of the RIP or
Super RIP.
29-30 2 Reserved This field is unused and must contain all binary zeros.
31-32 2 Compression Type Specifies the compression algorithm used to compress the
bitmapped character data. Undefined or unsupported compression
types will cause an error message to be displayed and the font
download will stop.
Compression types (see “Compression Types” on page 4-2) are:
0x0000 = Reserved
0x0001 = 32-bit Vertical Run Length Encoding (RLEV32)
33-36 4 Compression
The meaning of these bytes depends on the compression type
Parameter
specified in bytes 30-31.
Reference Guide 4 - 19