RVCL — ReceiVe CoLor raster data
Format
RVCL [compression-mode,] length, data;
Parameters
compression-mode:
0 = uncompressed (Default)
1 = run-length encoded
2 = TIFF (Tagged Image File Format) [rev. 4.0]
length:
bytes of raster data
data:
binary raster data, 0H to FFH
Function
The RVCL command is the color version of the RVCD (ReceiVe Compressed raster
Data) command. It transfers the color raster data. Color specification must be made to
each pixel. An 8 bps color specification is used for the color data for each pixel. Also,
this command is only valid for an RGB color space. Accordingly, 3 bytes of data must be
sent for each pixel to be drawn when transferring color images.
Although this command handles monochrome or color data for encoding, since it relies
on the
active palette, the
correct palette matching the print data must be used.
The end of raster data must be declared by the ENDR (END Raster) command.
When transferring color data using RVCL (ReceiVe CoLor raster data), always specify a
palette using the CID (Configure color-Image Data) command. Data will not be properly
processed if the palette is specified using the SIMP (SIMPle color palette) or PANT
(PANTone color palette) commands.
If the image data actually sent exceeds the width or height of the specified source data,
the excessive portion will be truncated, resulting a clipped image.
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