/* We know ppath != ppath_old. */
int
gx_path_copy_reversed(const gx_path *ppath_old, gx_path *ppath, int init)
{ const subpath *psub = ppath_old->first_subpath;
#ifdef DEBUG
if ( gs_debug['p'] )
gx_dump_path(ppath_old, "before reversepath");
#endif
if ( init )
gx_path_init(ppath, &ppath_old->memory_procs);
nsp: while ( psub )
{ const segment *pseg = psub->last;
const segment *prev;
int code = gx_path_add_point(ppath, pseg->pt.x, pseg->pt.y);
if ( code < 0 )
{ gx_path_release(ppath);
return code;
}
for ( ; ; pseg = prev )
{ prev = pseg->prev;
switch ( pseg->type )
{
case s_start:
/* Finished subpath */
if ( psub->closed )
code = gx_path_close_subpath(ppath);
psub = (const subpath *)psub->last->next;
goto nsp;
case s_curve:
{ const curve_segment *pc = (const curve_segment *)pseg;
code = gx_path_add_curve(ppath,
pc->p2.x, pc->p2.y,
pc->p1.x, pc->p1.y,
prev->pt.x, prev->pt.y);
break;
}
case s_line:
case s_line_close:
code = gx_path_add_line(ppath, prev->pt.x, prev->pt.y);
break;
}
if ( code )
{ gx_path_release(ppath);
return code;
}
}
/* not reached */
}
ppath->position = ppath_old->position; /* restore current point */
#ifdef DEBUG
if ( gs_debug['p'] )
gx_dump_path(ppath, "after reversepath");
#endif
return 0;
}
static inline int
gs_curveto_aux(gs_state * pgs,
floatp x1, floatp y1, floatp x2, floatp y2, floatp x3, floatp y3)
{
gs_fixed_point p1, p2, p3;
int code;
gx_path *ppath = pgs->path;
code = clamp_point_aux(pgs->clamp_coordinates, &p1, x1, y1);
if (code < 0)
return code;
code = clamp_point_aux(pgs->clamp_coordinates, &p2, x2, y2);
if (code < 0)
return code;
code = clamp_point_aux(pgs->clamp_coordinates, &p3, x3, y3);
if (code < 0)
return code;
code = gx_path_add_curve(ppath, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
if (code < 0)
return code;
gx_setcurrentpoint(pgs, x3, y3);
return 0;
}
