/* Start enumerating a path */
int
gs_path_enum_copy_init(gs_path_enum * penum, const gs_state * pgs, bool copy)
{
gs_memory_t *mem = pgs->memory;
if (copy) {
gx_path *copied_path =
gx_path_alloc(mem, "gs_path_enum_init");
int code;
if (copied_path == 0)
return_error(gs_error_VMerror);
code = gx_path_copy(pgs->path, copied_path);
if (code < 0) {
gx_path_free(copied_path, "gs_path_enum_init");
return code;
}
gx_path_enum_init(penum, copied_path);
penum->copied_path = copied_path;
} else {
gx_path_enum_init(penum, pgs->path);
}
penum->memory = mem;
gs_currentmatrix(pgs, &penum->mat);
return 0;
}
static int
bbox_stroke_path(gx_device * dev, const gs_imager_state * pis, gx_path * ppath,
const gx_stroke_params * params,
const gx_drawing_color * pdevc, const gx_clip_path * pcpath)
{
gx_device_bbox *const bdev = (gx_device_bbox *) dev;
gx_device *tdev = bdev->target;
/* Skip the call if there is no target. */
int code =
(tdev == 0 ? 0 :
dev_proc(tdev, stroke_path)(tdev, pis, ppath, params, pdevc, pcpath));
if (!GX_DC_IS_TRANSPARENT(pdevc, bdev)) {
gs_fixed_rect ibox;
gs_fixed_point expand;
if (gx_stroke_path_expansion(pis, ppath, &expand) == 0 &&
gx_path_bbox(ppath, &ibox) >= 0
) {
/* The fast result is exact. */
adjust_box(&ibox, expand);
} else {
/*
* The result is not exact. Compute an exact result using
* strokepath.
*/
gx_path *spath = gx_path_alloc(pis->memory, "bbox_stroke_path");
int code = 0;
if (spath)
code = gx_imager_stroke_add(ppath, spath, dev, pis);
else
code = -1;
if (code >= 0)
code = gx_path_bbox(spath, &ibox);
if (code < 0) {
ibox.p.x = ibox.p.y = min_fixed;
ibox.q.x = ibox.q.y = max_fixed;
}
if (spath)
gx_path_free(spath, "bbox_stroke_path");
}
if (pcpath != NULL &&
!gx_cpath_includes_rectangle(pcpath, ibox.p.x, ibox.p.y,
ibox.q.x, ibox.q.y)
) {
/* Let the target do the drawing, but break down the */
/* fill path into pieces for computing the bounding box. */
gx_drawing_color devc;
set_nonclient_dev_color(&devc, bdev->black); /* any non-white color will do */
bdev->target = NULL;
gx_default_stroke_path(dev, pis, ppath, params, &devc, pcpath);
bdev->target = tdev;
} else {
/* Just use the path bounding box. */
BBOX_ADD_RECT(bdev, ibox.p.x, ibox.p.y, ibox.q.x, ibox.q.y);
}
}
return code;
}
