#include "lib9.h"#include "draw.h"#include "kernel.h" intcloadimage(Image *i, Rectangle r, uchar *data, int ndata){	int m, nb, miny, maxy, ncblock;	uchar *a; 	if(!rectinrect(r, i->r)){		werrstr("cloadimage: bad rectangle");		return -1;	} 	miny = r.min.y;	m = 0;	ncblock = _compblocksize(r, i->depth);	while(miny != r.max.y){		maxy = atoi((char*)data+0*12);		nb = atoi((char*)data+1*12);		if(maxy<=miny || r.max.y<maxy){			werrstr("creadimage: bad maxy %d", maxy);			return -1;		}		data += 2*12;		ndata -= 2*12;		m += 2*12;		if(nb<=0 || ncblock<nb || nb>ndata){			werrstr("creadimage: bad count %d", nb);			return -1;		}		a = bufimage(i->display, 21+nb);		if(a == nil)			return -1;		a[0] = 'Y';		BPLONG(a+1, i->id);		BPLONG(a+5, r.min.x);		BPLONG(a+9, miny);		BPLONG(a+13, r.max.x);		BPLONG(a+17, maxy);		memmove(a+21, data, nb);		miny = maxy;		data += nb;		ndata += nb;		m += nb;	}	return m;}