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1 #include <u.h>2 #include <libc.h>3 #include <draw.h>5 void6 line(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp)7 {8 lineop(dst, p0, p1, end0, end1, radius, src, sp, SoverD);9 }11 void12 lineop(Image *dst, Point p0, Point p1, int end0, int end1, int radius, Image *src, Point sp, Drawop op)13 {14 uchar *a;16 _setdrawop(dst->display, op);18 a = bufimage(dst->display, 1+4+2*4+2*4+4+4+4+4+2*4);19 if(a == 0){20 fprint(2, "image line: %r\n");21 return;22 }23 a[0] = 'L';24 BPLONG(a+1, dst->id);25 BPLONG(a+5, p0.x);26 BPLONG(a+9, p0.y);27 BPLONG(a+13, p1.x);28 BPLONG(a+17, p1.y);29 BPLONG(a+21, end0);30 BPLONG(a+25, end1);31 BPLONG(a+29, radius);32 BPLONG(a+33, src->id);33 BPLONG(a+37, sp.x);34 BPLONG(a+41, sp.y);35 }