Docs » Autodocs » graphics.library » WritePixelLine8
WritePixelLine8 -- write the pen number value of a horizontal line
of pixels starting at a specified x,y location and continuing
right for count pixels. (V36)
count = WritePixelLine8(rp,xstart,ystart,width,array,temprp)
D0 A0 D0:16 D1:16 D2 A2 A1
LONG WritePixelLine8(struct RastPort *, UWORD, UWORD,
UWORD, UBYTE *, struct RastPort *);
For each pixel in a horizontal region, decode the pen number selector
from a linear array of pen numbers into the bit-planes used to describe
a particular rastport.
rp - pointer to a RastPort structure
(x,y) - a point in the RastPort
width - count of horizontal pixels to write
array - pointer to an array of UBYTEs from which to fetch the pixel data
allocate at least (((width+15)>>4)<<4) bytes.
temprp - temporary rastport (copy of rp with Layer set == NULL,
temporary memory allocated for
temprp->BitMap with Rows set == 1,
temprp->BitMap BytesPerRow == (((width+15)>>4)<<1),
and temporary memory allocated for
temprp->BitMap->Planes[])
Count will be set to the number of pixels plotted
width must be non negative
WritePixel(), <graphics/rastport.h>
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