// Copyright status: this file is in the public domain.

#include <stdlib.h>

#include "lx.h"

#include "proto.h"
#include "internal.h"

void lx_FillPoly(LX_CONN *xc, LX_XID drawable, LX_XID gc, LX_SHAPECLASS sclass, LX_COORDMODE cmode, int npts, const LX_POINT *pts)
{
 unsigned char *req;
 int reqlen;
 int psc;
 int pcm;
 int i;
 int o;
 const LX_POINT *p;

 if ( (xc->flags & XCF_FAIL) ||
      (npts < 0) || (npts > (65535-4)) )
  { lx__bad_call(xc,"lx_FillPoly");
    return;
  }
 lx__nochain(xc);
 psc = lx__shapeclass_to_proto(sclass);
 pcm = lx__coordmode_to_proto(cmode);
 if ((psc < 0) || (pcm < 0))
  { lx__bad_call(xc,"lx_FillPoly");
    return;
  }
 reqlen = 4 + npts;
 req = malloc(reqlen<<2);
 if (! req)
  { lx__nomem_fail(xc);
    return;
  }
 req[0] = XP_REQ_FillPoly;
 req[1] = 0;
 w_card16(&req[2],reqlen);
 w_card32(&req[4],drawable);
 w_card32(&req[8],gc);
 req[12] = psc;
 req[13] = pcm;
 o = 16;
 for (i=0;i<npts;i++)
  { p = &pts[i];
    if ( (p->x < -32768) || (p->x > 32767) ||
	 (p->y < -32768) || (p->y > 32767) )
     { free(req);
       lx__bad_call(xc,"lx_FillPoly");
       return;
     }
    w_int16(&req[o],p->x);
    w_int16(&req[o+2],p->y);
    o += 4;
  }
 lx__send_req_free(xc,req,reqlen<<2);
}