RLE_PUTROW(3) 3 (2/2/87) RLE_PUTROW(3)
NAME
rle_putrow - Write a row (scanline) of data to an RLE file.
SYNOPSIS
#include <rle.h>
void rle_putrow( rows, length, the_hdr );
rle_pixel ** rows;
int length;
rle_hdr * the_hdr;
DESCRIPTION
Rle_putrow is called for each output scanline when creating
an RLE(5) image. Rows is an array of pointers to the pixel
data for the color components of the scanline. Rows should
have the_hdr->ncolors elements. If an alpha channel is
being saved, rows[-1] should point to the alpha channel
data. Length is the number of pixels in the scanline.
Rows[i] should point to the the_hdr->xmin element of the
scanline.
The function rle_row_alloc(3) will properly allocate memory
for use by rle_putrow.
SEE ALSO
rle_hdr(3), rle_skiprow(3), rle_putraw(3), rle_puteof(3),
rle_row_alloc(3), rle_row_free(3), librle(3), RLE(5).
AUTHOR
Spencer W. Thomas, Todd Fuqua
BUGS
Having the scanline indexed from xmin is an incredible
botch. Its origin lies in the deep dark history of the
raster toolkit, and it seems it's too late to change it now.
Page 1 (printed 12/1/98)
