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RLE_OP(3)             DragonFly Library Functions Manual             RLE_OP(3)

NAME
       rle_op - Data structure for raw run-length encoded image data.

SYNOPSIS
       #include <rle.h>
       #include <rle_raw.h>
       typedef struct rle_op rle_op;

DESCRIPTION
       The rle_op data structure is used to describe a single run of data in a
       RLE(5) run-length encoded image.  It is filled by the function
       rle_getraw(3), and is used by the functions rle_putraw(3) and
       rle_rawtorow(3).

       The structure is
           struct rle_op {
                 int     opcode;   /* One of RByteDataOp or RRunDataOp. */
                 int     xloc;     /* X starting location of this data. */
                 int     length;   /* Length of run or data array. */
                 union {
                         rle_pixel *pixels;  /* ByteData case. */
                         int       run_val;  /* RunData case. */
                 } u;
            };

       If the opcode has the value RByteDataOp, then the u.pixels component
       points to an array of length pixel values.  If the opcode has the value
       RRunDataOp, then the u.run_val component contains a pixel value that is
       to be repeated length times.

SEE ALSO
       rle_hdr(3), rle_getraw(3), rle_putraw(3), rle_rawtorow(3), librle(3),
       RLE(5).

AUTHOR
       Spencer W. Thomas

4th Berkeley Distribution         July, 1990                         RLE_OP(3)