copying bmesh dir on its own from bmesh branch

1 files changed, 126 insertions, 0 deletions

diff --git a/source/blender/bmesh/operators/bmo_mirror.c b/source/blender/bmesh/operators/bmo_mirror.c
new file mode 100644
index 00000000000..82e77fc9a96
--- /dev/null
+++ b/source/blender/bmesh/operators/bmo_mirror.c
@@ -0,0 +1,126 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Joseph Eagar.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_meshdata_types.h"
+
+#include "BLI_math.h"
+#include "BLI_array.h"
+
+#include "BKE_customdata.h"
+
+#include "bmesh.h"
+#include "bmesh_operators_private.h" /* own include */
+
+#define ELE_NEW		1
+
+void bmesh_mirror_exec(BMesh *bm, BMOperator *op)
+{
+	BMOperator dupeop, weldop;
+	BMOIter siter;
+	BMIter iter;
+	BMVert *v, *v2, **vmap = NULL;
+	BLI_array_declare(vmap);
+	BMEdge /*  *e, */ **emap = NULL;
+	BLI_array_declare(emap);
+	float mtx[4][4];
+	float imtx[4][4];
+	float scale[3] = {1.0f, 1.0f, 1.0f};
+	float dist = BMO_slot_float_get(op, "mergedist");
+	int i, ototvert, ototedge, axis = BMO_slot_int_get(op, "axis");
+	int mirroru = BMO_slot_int_get(op, "mirror_u");
+	int mirrorv = BMO_slot_int_get(op, "mirror_v");
+
+	ototvert = bm->totvert;
+	ototedge = bm->totedge;
+	
+	BMO_slot_mat4_get(op, "mat", mtx);
+	invert_m4_m4(imtx, mtx);
+	
+	BMO_op_initf(bm, &dupeop, "dupe geom=%s", op, "geom");
+	BMO_op_exec(bm, &dupeop);
+	
+	BMO_slot_buffer_flag_enable(bm, &dupeop, "newout", ELE_NEW, BM_ALL);
+
+	/* create old -> new mappin */
+	i = 0;
+	v2 = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
+	BMO_ITER(v, &siter, bm, &dupeop, "newout", BM_VERT) {
+		BLI_array_growone(vmap);
+		vmap[i] = v;
+
+		/* BMESH_TODO, double check this is being used, calling following operators will overwrite anyway - campbell */
+		BM_elem_index_set(v2, i); /* set_dirty! */
+		v2 = BM_iter_step(&iter);
+
+		i++;
+	}
+	bm->elem_index_dirty |= BM_VERT;
+
+	/* feed old data to transform bmo */
+	scale[axis] = -1.0f;
+	BMO_op_callf(bm, "transform verts=%fv mat=%m4", ELE_NEW, mtx);
+	BMO_op_callf(bm, "scale verts=%fv vec=%v", ELE_NEW, scale);
+	BMO_op_callf(bm, "transform verts=%fv mat=%m4", ELE_NEW, imtx);
+	
+	BMO_op_init(bm, &weldop, "weldverts");
+
+	v = BM_iter_new(&iter, bm, BM_VERTS_OF_MESH, NULL);
+	for (i = 0; i < ototvert; i++) {
+		if (ABS(v->co[axis]) <= dist) {
+			BMO_slot_map_ptr_insert(bm, &weldop, "targetmap", vmap[i], v);
+		}
+		v = BM_iter_step(&iter);
+	}
+	
+	if (mirroru || mirrorv) {
+		BMFace *f;
+		BMLoop *l;
+		MLoopUV *luv;
+		int totlayer;
+		BMIter liter;
+
+		BMO_ITER(f, &siter, bm, &dupeop, "newout", BM_FACE) {
+			BM_ITER(l, &liter, bm, BM_LOOPS_OF_FACE, f) {
+				totlayer = CustomData_number_of_layers(&bm->ldata, CD_MLOOPUV);
+				for (i = 0; i < totlayer; i++) {
+					luv = CustomData_bmesh_get_n(&bm->ldata, l->head.data, CD_MLOOPUV, i);
+					if (mirroru)
+						luv->uv[0] = 1.0f - luv->uv[0];
+					if (mirrorv)
+						luv->uv[1] = 1.0f - luv->uv[1];
+				}
+			}
+		}
+	}
+
+	BMO_op_exec(bm, &weldop);
+	
+	BMO_op_finish(bm, &weldop);
+	BMO_op_finish(bm, &dupeop);
+
+	BMO_slot_from_flag(bm, op, "newout", ELE_NEW, BM_ALL);
+
+	BLI_array_free(vmap);
+	BLI_array_free(emap);
+}