/**
* Clear for reuse, avoids re-allocation when an arena may
* otherwise be free'd and recreated.
*/
void BLI_memarena_clear(MemArena *ma)
{
if (ma->bufs) {
unsigned char *curbuf_prev;
size_t curbuf_used;
if (ma->bufs->next) {
BLI_linklist_freeN(ma->bufs->next);
ma->bufs->next = NULL;
}
curbuf_prev = ma->curbuf;
ma->curbuf = ma->bufs->link;
memarena_curbuf_align(ma);
/* restore to original size */
curbuf_used = (size_t)(curbuf_prev - ma->curbuf);
ma->cursize += curbuf_used;
if (ma->use_calloc) {
memset(ma->curbuf, 0, curbuf_used);
}
}
#ifdef WITH_MEM_VALGRIND
VALGRIND_DESTROY_MEMPOOL(ma);
VALGRIND_CREATE_MEMPOOL(ma, 0, false);
#endif
}
void BLI_memarena_free(MemArena *ma)
{
BLI_linklist_freeN(ma->bufs);
#ifdef WITH_MEM_VALGRIND
VALGRIND_DESTROY_MEMPOOL(ma);
#endif
MEM_freeN(ma);
}
static int knifeproject_exec(bContext *C, wmOperator *op)
{
ARegion *ar = CTX_wm_region(C);
Scene *scene = CTX_data_scene(C);
Object *obedit = CTX_data_edit_object(C);
BMEditMesh *em = BKE_editmesh_from_object(obedit);
const bool cut_through = RNA_boolean_get(op->ptr, "cut_through");
LinkNode *polys = NULL;
CTX_DATA_BEGIN (C, Object *, ob, selected_objects)
{
if (ob != obedit) {
polys = knifeproject_poly_from_object(ar, scene, ob, polys);
}
}
CTX_DATA_END;
if (polys) {
EDBM_mesh_knife(C, polys, true, cut_through);
/* select only tagged faces */
BM_mesh_elem_hflag_disable_all(em->bm, BM_VERT | BM_EDGE | BM_FACE, BM_ELEM_SELECT, false);
/* not essential, but switch out of vertex mode since the
* selected regions wont be nicely isolated after flushing.
* note: call after de-select to avoid selection flushing */
EDBM_selectmode_disable(scene, em, SCE_SELECT_VERTEX, SCE_SELECT_EDGE);
BM_mesh_elem_hflag_enable_test(em->bm, BM_FACE, BM_ELEM_SELECT, true, false, BM_ELEM_TAG);
BM_mesh_select_mode_flush(em->bm);
BLI_linklist_freeN(polys);
return OPERATOR_FINISHED;
}
else {
BKE_report(op->reports, RPT_ERROR, "No other selected objects found to use for projection");
return OPERATOR_CANCELLED;
}
}
/*
* Frees memory from a previous call to BLI_file_read_as_lines.
*/
void BLI_file_free_lines(LinkNode *lines)
{
BLI_linklist_freeN(lines);
}