diff --git a/source/blender/blenlib/BLI_lasso.h b/source/blender/blenlib/BLI_lasso.h
new file mode 100644
index 00000000000..2360173c3b8
--- /dev/null
+++ b/source/blender/blenlib/BLI_lasso.h
@@ -0,0 +1,41 @@
+/*
+ * ***** 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.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BLI_LASSO_H__
+#define __BLI_LASSO_H__
+
+/** \file BLI_lasso.h
+ *  \ingroup bli
+ */
+
+struct rcti;
+
+void BLI_lasso_boundbox(struct rcti *rect, int mcords[][2], short moves);
+int  BLI_lasso_is_point_inside(int mcords[][2], short moves, int sx, int sy, const int error_value);
+int  BLI_lasso_is_edge_inside(int mcords[][2], short moves, int x0, int y0, int x1, int y1, const int error_value);
+
+#endif
diff --git a/source/blender/blenlib/CMakeLists.txt b/source/blender/blenlib/CMakeLists.txt
index c06a1240729..61fe3b560e2 100644
--- a/source/blender/blenlib/CMakeLists.txt
+++ b/source/blender/blenlib/CMakeLists.txt
@@ -61,6 +61,7 @@ set(SRC
 	intern/graph.c
 	intern/gsqueue.c
 	intern/jitter.c
+	intern/lasso.c
 	intern/listbase.c
 	intern/math_base.c
 	intern/math_base_inline.c
@@ -90,10 +91,9 @@ set(SRC
 	intern/voxel.c
 	intern/winstuff.c
 
+	BLI_args.h
 	BLI_array.h
 	BLI_bitmap.h
-	BLI_smallhash.h
-	BLI_args.h
 	BLI_blenlib.h
 	BLI_boxpack2d.h
 	BLI_bpath.h
@@ -114,6 +114,7 @@ set(SRC
 	BLI_jitter.h
 	BLI_kdopbvh.h
 	BLI_kdtree.h
+	BLI_lasso.h
 	BLI_linklist.h
 	BLI_listbase.h
 	BLI_math.h
@@ -133,6 +134,7 @@ set(SRC
 	BLI_rand.h
 	BLI_rect.h
 	BLI_scanfill.h
+	BLI_smallhash.h
 	BLI_string.h
 	BLI_string_cursor_utf8.h
 	BLI_string_utf8.h
diff --git a/source/blender/blenlib/intern/lasso.c b/source/blender/blenlib/intern/lasso.c
new file mode 100644
index 00000000000..29b967fcd37
--- /dev/null
+++ b/source/blender/blenlib/intern/lasso.c
@@ -0,0 +1,129 @@
+/*
+ * ***** 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.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ */
+
+/** \file blender/blenlib/intern/lasso.c
+ *  \ingroup bli
+ */
+
+#include "DNA_vec_types.h"
+
+#include "BLI_math.h"
+#include "BLI_rect.h"
+
+#include "BLI_lasso.h" /* own include */
+
+void BLI_lasso_boundbox(rcti *rect, int mcords[][2], short moves)
+{
+	short a;
+
+	rect->xmin = rect->xmax = mcords[0][0];
+	rect->ymin = rect->ymax = mcords[0][1];
+
+	for (a = 1; a < moves; a++) {
+		if      (mcords[a][0] < rect->xmin) rect->xmin = mcords[a][0];
+		else if (mcords[a][0] > rect->xmax) rect->xmax = mcords[a][0];
+		if      (mcords[a][1] < rect->ymin) rect->ymin = mcords[a][1];
+		else if (mcords[a][1] > rect->ymax) rect->ymax = mcords[a][1];
+	}
+}
+
+
+int BLI_lasso_is_point_inside(int mcords[][2], short moves,
+                              const int sx, const int sy,
+                              const int error_value)
+{
+	/* we do the angle rule, define that all added angles should be about zero or (2 * PI) */
+	float angletot = 0.0, dot, ang, cross, fp1[2], fp2[2];
+	int a;
+	int *p1, *p2;
+
+	if (sx == error_value) {
+		return 0;
+	}
+
+	p1 = mcords[moves - 1];
+	p2 = mcords[0];
+
+	/* first vector */
+	fp1[0] = (float)(p1[0] - sx);
+	fp1[1] = (float)(p1[1] - sy);
+	normalize_v2(fp1);
+
+	for (a = 0; a < moves; a++) {
+		/* second vector */
+		fp2[0] = (float)(p2[0] - sx);
+		fp2[1] = (float)(p2[1] - sy);
+		normalize_v2(fp2);
+
+		/* dot and angle and cross */
+		dot = fp1[0] * fp2[0] + fp1[1] * fp2[1];
+		ang = fabs(saacos(dot));
+
+		cross = (float)((p1[1] - p2[1]) * (p1[0] - sx) + (p2[0] - p1[0]) * (p1[1] - sy));
+
+		if (cross < 0.0f) angletot -= ang;
+		else angletot += ang;
+
+		/* circulate */
+		fp1[0] = fp2[0]; fp1[1] = fp2[1];
+		p1 = p2;
+		p2 = mcords[a + 1];
+	}
+
+	if (fabs(angletot) > 4.0) return 1;
+	return 0;
+}
+
+/* edge version for lasso select. we assume boundbox check was done */
+int BLI_lasso_is_edge_inside(int mcords[][2], short moves,
+                             int x0, int y0, int x1, int y1,
+                             const int error_value)
+{
+	int v1[2], v2[2];
+	int a;
+
+	if (x0 == error_value || x1 == error_value) {
+		return 0;
+	}
+
+	v1[0] = x0, v1[1] = y0;
+	v2[0] = x1, v2[1] = y1;
+
+	/* check points in lasso */
+	if (BLI_lasso_is_point_inside(mcords, moves, v1[0], v1[1], error_value)) return 1;
+	if (BLI_lasso_is_point_inside(mcords, moves, v2[0], v2[1], error_value)) return 1;
+
+	/* no points in lasso, so we have to intersect with lasso edge */
+
+	if (isect_line_line_v2_int(mcords[0], mcords[moves - 1], v1, v2) > 0) return 1;
+	for (a = 0; a < moves - 1; a++) {
+		if (isect_line_line_v2_int(mcords[a], mcords[a + 1], v1, v2) > 0) return 1;
+	}
+
+	return 0;
+}
diff --git a/source/blender/blenlib/intern/listbase.c b/source/blender/blenlib/intern/listbase.c
index fecaa507b5c..b2b18286cfb 100644
--- a/source/blender/blenlib/intern/listbase.c
+++ b/source/blender/blenlib/intern/listbase.c
@@ -1,9 +1,4 @@
-/* util.c
- *
- * various string, file, list operations.
- *
- *
- *
+/*
  * ***** BEGIN GPL LICENSE BLOCK *****
  *
  * This program is free software; you can redistribute it and/or
diff --git a/source/blender/editors/include/ED_view3d.h b/source/blender/editors/include/ED_view3d.h
index f886c01039e..4b614085f8e 100644
--- a/source/blender/editors/include/ED_view3d.h
+++ b/source/blender/editors/include/ED_view3d.h
@@ -269,8 +269,6 @@ void view3d_get_transformation(const struct ARegion *ar, struct RegionView3D *rv
 
 /* XXX should move to BLI_math */
 int edge_inside_circle(short centx, short centy, short rad, short x1, short y1, short x2, short y2);
-int lasso_inside(int mcords[][2], short moves, int sx, int sy);
-int lasso_inside_edge(int mcords[][2], short moves, int x0, int y0, int x1, int y1);
 
 /* get 3d region from context, also if mouse is in header or toolbar */
 struct RegionView3D *ED_view3d_context_rv3d(struct bContext *C);
diff --git a/source/blender/editors/mesh/meshtools.c b/source/blender/editors/mesh/meshtools.c
index 7c02f26dbdc..96fb2afbac4 100644
--- a/source/blender/editors/mesh/meshtools.c
+++ b/source/blender/editors/mesh/meshtools.c
@@ -1016,7 +1016,7 @@ static float *editmesh_get_mirror_uv(BMEditMesh *em, int axis, float *uv, float
 		BMFace *efa;
 		
 		BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
-			poly_uv_center(em, efa, cent);
+			uv_poly_center(em, efa, cent);
 			
 			if ( (fabs(cent[0] - cent_vec[0]) < 0.001) && (fabs(cent[1] - cent_vec[1]) < 0.001) ) {
 				BMIter liter;
diff --git a/source/blender/editors/physics/particle_edit.c b/source/blender/editors/physics/particle_edit.c
index 5f22165176b..591015a7479 100644
--- a/source/blender/editors/physics/particle_edit.c
+++ b/source/blender/editors/physics/particle_edit.c
@@ -45,7 +45,9 @@
 #include "DNA_space_types.h"
 
 #include "BLI_math.h"
-#include "BLI_blenlib.h"
+#include "BLI_lasso.h"
+#include "BLI_listbase.h"
+#include "BLI_string.h"
 #include "BLI_dynstr.h"
 #include "BLI_kdtree.h"
 #include "BLI_rand.h"
@@ -1633,7 +1635,9 @@ int PE_lasso_select(bContext *C, int mcords[][2], short moves, short extend, sho
 				copy_v3_v3(co, key->co);
 				mul_m4_v3(mat, co);
 				project_int(ar, co, vertco);
-				if ((vertco[0] != IS_CLIPPED) && lasso_inside(mcords,moves,vertco[0],vertco[1]) && key_test_depth(&data, co)) {
+				if (BLI_lasso_is_point_inside(mcords,moves,vertco[0],vertco[1], IS_CLIPPED) &&
+				    key_test_depth(&data, co))
+				{
 					if (select && !(key->flag & PEK_SELECT)) {
 						key->flag |= PEK_SELECT;
 						point->flag |= PEP_EDIT_RECALC;
@@ -1651,7 +1655,9 @@ int PE_lasso_select(bContext *C, int mcords[][2], short moves, short extend, sho
 			copy_v3_v3(co, key->co);
 			mul_m4_v3(mat, co);
 			project_int(ar, co,vertco);
-			if ((vertco[0] != IS_CLIPPED) && lasso_inside(mcords,moves,vertco[0],vertco[1]) && key_test_depth(&data, co)) {
+			if (BLI_lasso_is_point_inside(mcords,moves,vertco[0],vertco[1], IS_CLIPPED) &&
+			    key_test_depth(&data, co))
+			{
 				if (select && !(key->flag & PEK_SELECT)) {
 					key->flag |= PEK_SELECT;
 					point->flag |= PEP_EDIT_RECALC;
diff --git a/source/blender/editors/space_view3d/view3d_select.c b/source/blender/editors/space_view3d/view3d_select.c
index ac9c32816dd..09cc6b9c7a5 100644
--- a/source/blender/editors/space_view3d/view3d_select.c
+++ b/source/blender/editors/space_view3d/view3d_select.c
@@ -48,9 +48,12 @@
 #include "MEM_guardedalloc.h"
 
 #include "BLI_math.h"
-#include "BLI_blenlib.h"
+#include "BLI_lasso.h"
+#include "BLI_rect.h"
 #include "BLI_rand.h"
 #include "BLI_linklist.h"
+#include "BLI_listbase.h"
+#include "BLI_string.h"
 #include "BLI_utildefines.h"
 
 /* vertex box select */
@@ -319,79 +322,6 @@ static int edge_inside_rect(rcti *rect, short x1, short y1, short x2, short y2)
 #define MOVES_GESTURE 50
 #define MOVES_LASSO 500
 
-int lasso_inside(int mcords[][2], short moves, int sx, int sy)
-{
-	/* we do the angle rule, define that all added angles should be about zero or 2*PI */
-	float angletot = 0.0, len, dot, ang, cross, fp1[2], fp2[2];
-	int a;
-	int *p1, *p2;
-	
-	if (sx == IS_CLIPPED)
-		return 0;
-	
-	p1 = mcords[moves - 1];
-	p2 = mcords[0];
-	
-	/* first vector */
-	fp1[0] = (float)(p1[0] - sx);
-	fp1[1] = (float)(p1[1] - sy);
-	len = sqrt(fp1[0] * fp1[0] + fp1[1] * fp1[1]);
-	fp1[0] /= len;
-	fp1[1] /= len;
-	
-	for (a = 0; a < moves; a++) {
-		/* second vector */
-		fp2[0] = (float)(p2[0] - sx);
-		fp2[1] = (float)(p2[1] - sy);
-		len = sqrt(fp2[0] * fp2[0] + fp2[1] * fp2[1]);
-		fp2[0] /= len;
-		fp2[1] /= len;
-		
-		/* dot and angle and cross */
-		dot = fp1[0] * fp2[0] + fp1[1] * fp2[1];
-		ang = fabs(saacos(dot));
-
-		cross = (float)((p1[1] - p2[1]) * (p1[0] - sx) + (p2[0] - p1[0]) * (p1[1] - sy));
-		
-		if (cross < 0.0f) angletot -= ang;
-		else angletot += ang;
-		
-		/* circulate */
-		fp1[0] = fp2[0]; fp1[1] = fp2[1];
-		p1 = p2;
-		p2 = mcords[a + 1];
-	}
-	
-	if (fabs(angletot) > 4.0) return 1;
-	return 0;
-}
-
-/* edge version for lasso select. we assume boundbox check was done */
-int lasso_inside_edge(int mcords[][2], short moves, int x0, int y0, int x1, int y1)
-{
-	int v1[2], v2[2];
-	int a;
-
-	if (x0 == IS_CLIPPED || x1 == IS_CLIPPED)
-		return 0;
-	
-	v1[0] = x0, v1[1] = y0;
-	v2[0] = x1, v2[1] = y1;
-
-	/* check points in lasso */
-	if (lasso_inside(mcords, moves, v1[0], v1[1])) return 1;
-	if (lasso_inside(mcords, moves, v2[0], v2[1])) return 1;
-	
-	/* no points in lasso, so we have to intersect with lasso edge */
-	
-	if (isect_line_line_v2_int(mcords[0], mcords[moves - 1], v1, v2) > 0) return 1;
-	for (a = 0; a < moves - 1; a++) {
-		if (isect_line_line_v2_int(mcords[a], mcords[a + 1], v1, v2) > 0) return 1;
-	}
-	
-	return 0;
-}
-
 
 /* warning; lasso select with backbuffer-check draws in backbuf with persp(PERSP_WIN) 
  * and returns with persp(PERSP_VIEW). After lasso select backbuf is not OK
@@ -412,7 +342,7 @@ static void do_lasso_select_pose(ViewContext *vc, Object *ob, int mcords[][2], s
 			mul_v3_m4v3(vec, ob->obmat, pchan->pose_tail);
 			project_int(vc->ar, vec, sco2);
 			
-			if (lasso_inside_edge(mcords, moves, sco1[0], sco1[1], sco2[0], sco2[1])) {
+			if (BLI_lasso_is_edge_inside(mcords, moves, sco1[0], sco1[1], sco2[0], sco2[1], IS_CLIPPED)) {
 				if (select) pchan->bone->flag |= BONE_SELECTED;
 				else pchan->bone->flag &= ~BONE_SELECTED;
 			}
@@ -441,7 +371,7 @@ static void do_lasso_select_objects(ViewContext *vc, int mcords[][2], short move
 	for (base = vc->scene->base.first; base; base = base->next) {
 		if (BASE_SELECTABLE(vc->v3d, base)) { /* use this to avoid un-needed lasso lookups */
 			project_short(vc->ar, base->object->obmat[3], &base->sx);
-			if (lasso_inside(mcords, moves, base->sx, base->sy)) {
+			if (BLI_lasso_is_point_inside(mcords, moves, base->sx, base->sy, IS_CLIPPED)) {
 				
 				if (select) ED_base_object_select(base, BA_SELECT);
 				else ED_base_object_select(base, BA_DESELECT);
@@ -454,26 +384,13 @@ static void do_lasso_select_objects(ViewContext *vc, int mcords[][2], short move
 	}
 }
 
-static void lasso_select_boundbox(rcti *rect, int mcords[][2], short moves)
-{
-	short a;
-	
-	rect->xmin = rect->xmax = mcords[0][0];
-	rect->ymin = rect->ymax = mcords[0][1];
-	
-	for (a = 1; a < moves; a++) {
-		if (mcords[a][0] < rect->xmin) rect->xmin = mcords[a][0];
-		else if (mcords[a][0] > rect->xmax) rect->xmax = mcords[a][0];
-		if (mcords[a][1] < rect->ymin) rect->ymin = mcords[a][1];
-		else if (mcords[a][1] > rect->ymax) rect->ymax = mcords[a][1];
-	}
-}
-
 static void do_lasso_select_mesh__doSelectVert(void *userData, BMVert *eve, int x, int y, int UNUSED(index))
 {
 	LassoSelectUserData *data = userData;
 
-	if (BLI_in_rcti(data->rect, x, y) && lasso_inside(data->mcords, data->moves, x, y)) {
+	if (BLI_in_rcti(data->rect, x, y) &&
+	    BLI_lasso_is_point_inside(data->mcords, data->moves, x, y, IS_CLIPPED))
+	{
 		BM_vert_select_set(data->vc->em->bm, eve, data->select);
 	}
 }
@@ -484,14 +401,15 @@ static void do_lasso_select_mesh__doSelectEdge(void *userData, BMEdge *eed, int
 	if (EDBM_backbuf_check(bm_solidoffs + index)) {
 		if (data->pass == 0) {
 			if (edge_fully_inside_rect(data->rect, x0, y0, x1, y1)  &&
-			    lasso_inside(data->mcords, data->moves, x0, y0) &&
-			    lasso_inside(data->mcords, data->moves, x1, y1)) {
+			    BLI_lasso_is_point_inside(data->mcords, data->moves, x0, y0, IS_CLIPPED) &&
+			    BLI_lasso_is_point_inside(data->mcords, data->moves, x1, y1, IS_CLIPPED))
+			{
 				BM_edge_select_set(data->vc->em->bm, eed, data->select);
 				data->done = 1;
 			}
 		}
 		else {
-			if (lasso_inside_edge(data->mcords, data->moves, x0, y0, x1, y1)) {
+			if (BLI_lasso_is_edge_inside(data->mcords, data->moves, x0, y0, x1, y1, IS_CLIPPED)) {
 				BM_edge_select_set(data->vc->em->bm, eed, data->select);
 			}
 		}
@@ -501,7 +419,9 @@ static void do_lasso_select_mesh__doSelectFace(void *userData, BMFace *efa, int
 {
 	LassoSelectUserData *data = userData;
 
-	if (BLI_in_rcti(data->rect, x, y) && lasso_inside(data->mcords, data->moves, x, y)) {
+	if (BLI_in_rcti(data->rect, x, y) &&
+	    BLI_lasso_is_point_inside(data->mcords, data->moves, x, y, IS_CLIPPED))
+	{
 		BM_face_select_set(data->vc->em->bm, efa, data->select);
 	}
 }
@@ -513,7 +433,7 @@ static void do_lasso_select_mesh(ViewContext *vc, int mcords[][2], short moves,
 	rcti rect;
 	int bbsel;
 	
-	lasso_select_boundbox(&rect, mcords, moves);
+	BLI_lasso_boundbox(&rect, mcords, moves);
 	
 	/* set editmesh */
 	vc->em = BMEdit_FromObject(vc->obedit);
@@ -577,7 +497,7 @@ static void do_lasso_select_mesh_uv(int mcords[][2], short moves, short select)
 	int screenUV[2], nverts, i, ok = 1;
 	rcti rect;
 	
-	lasso_select_boundbox(&rect, mcords, moves);
+	BLI_lasso_boundbox(&rect, mcords, moves);
 	
 	if (draw_uvs_face_check()) { /* Face Center Sel */
 		float cent[2];
@@ -589,7 +509,7 @@ static void do_lasso_select_mesh_uv(int mcords[][2], short moves, short select)
 			if ((select) != (simaFaceSel_Check(efa, tf))) {
 				uv_center(tf->uv, cent, (void *)efa->v4);
 				uvco_to_areaco_noclip(cent, screenUV);
-				if (BLI_in_rcti(&rect, screenUV[0], screenUV[1]) && lasso_inside(mcords, moves, screenUV[0], screenUV[1])) {
+				if (BLI_in_rcti(&rect, screenUV[0], screenUV[1]) && BLI_lasso_is_point_inside(mcords, moves, screenUV[0], screenUV[1])) {
 					efa->tmp.l = ok = 1;
 				}
 			}
@@ -607,7 +527,7 @@ static void do_lasso_select_mesh_uv(int mcords[][2], short moves, short select)
 				for (i = 0; i < nverts; i++) {
 					if ((select) != (simaUVSel_Check(efa, tf, i))) {
 						uvco_to_areaco_noclip(tf->uv[i], screenUV);
-						if (BLI_in_rcti(&rect, screenUV[0], screenUV[1]) && lasso_inside(mcords, moves, screenUV[0], screenUV[1])) {
+						if (BLI_in_rcti(&rect, screenUV[0], screenUV[1]) && BLI_lasso_is_point_inside(mcords, moves, screenUV[0], screenUV[1])) {
 							if (select) {
 								simaUVSel_Set(efa, tf, i);
 							}
@@ -633,7 +553,7 @@ static void do_lasso_select_curve__doSelect(void *userData, Nurb *UNUSED(nu), BP
 	Object *obedit = data->vc->obedit;
 	Curve *cu = (Curve *)obedit->data;
 
-	if (lasso_inside(data->mcords, data->moves, x, y)) {
+	if (BLI_lasso_is_point_inside(data->mcords, data->moves, x, y, IS_CLIPPED)) {
 		if (bp) {
 			bp->f1 = data->select ? (bp->f1 | SELECT) : (bp->f1 & ~SELECT);
 			if (bp == cu->lastsel && !(bp->f1 & 1)) cu->lastsel = NULL;
@@ -681,7 +601,7 @@ static void do_lasso_select_lattice__doSelect(void *userData, BPoint *bp, int x,
 {
 	LassoSelectUserData *data = userData;
 
-	if (lasso_inside(data->mcords, data->moves, x, y)) {
+	if (BLI_lasso_is_point_inside(data->mcords, data->moves, x, y, IS_CLIPPED)) {
 		bp->f1 = data->select ? (bp->f1 | SELECT) : (bp->f1 & ~SELECT);
 	}
 }
@@ -722,20 +642,22 @@ static void do_lasso_select_armature(ViewContext *vc, int mcords[][2], short mov
 			project_short(vc->ar, vec, sco2);
 			
 			didpoint = 0;
-			if (lasso_inside(mcords, moves, sco1[0], sco1[1])) {
+			if (BLI_lasso_is_point_inside(mcords, moves, sco1[0], sco1[1], IS_CLIPPED)) {
 				if (select) ebone->flag |= BONE_ROOTSEL;
 				else ebone->flag &= ~BONE_ROOTSEL;
 				didpoint = 1;
 				change = TRUE;
 			}
-			if (lasso_inside(mcords, moves, sco2[0], sco2[1])) {
+			if (BLI_lasso_is_point_inside(mcords, moves, sco2[0], sco2[1], IS_CLIPPED)) {
 				if (select) ebone->flag |= BONE_TIPSEL;
 				else ebone->flag &= ~BONE_TIPSEL;
 				didpoint = 1;
 				change = TRUE;
 			}
 			/* if one of points selected, we skip the bone itself */
-			if (didpoint == 0 && lasso_inside_edge(mcords, moves, sco1[0], sco1[1], sco2[0], sco2[1])) {
+			if (didpoint == 0 &&
+			    BLI_lasso_is_edge_inside(mcords, moves, sco1[0], sco1[1], sco2[0], sco2[1], IS_CLIPPED))
+			{
 				if (select) ebone->flag |= BONE_TIPSEL | BONE_ROOTSEL | BONE_SELECTED;
 				else ebone->flag &= ~(BONE_SELECTED | BONE_TIPSEL | BONE_ROOTSEL);
 				change = TRUE;
@@ -771,7 +693,7 @@ static void do_lasso_select_meta(ViewContext *vc, int mcords[][2], short moves,
 		mul_v3_m4v3(vec, vc->obedit->obmat, &ml->x);
 		project_short(vc->ar, vec, sco);
 
-		if (lasso_inside(mcords, moves, sco[0], sco[1])) {
+		if (BLI_lasso_is_point_inside(mcords, moves, sco[0], sco[1], IS_CLIPPED)) {
 			if (select) ml->flag |= SELECT;
 			else ml->flag &= ~SELECT;
 		}
@@ -850,7 +772,7 @@ static void do_lasso_select_paintvert(ViewContext *vc, int mcords[][2], short mo
 		paintvert_deselect_all_visible(ob, SEL_DESELECT, FALSE);  /* flush selection at the end */
 	bm_vertoffs = me->totvert + 1; /* max index array */
 
-	lasso_select_boundbox(&rect, mcords, moves);
+	BLI_lasso_boundbox(&rect, mcords, moves);
 	EDBM_backbuf_border_mask_init(vc, mcords, moves, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
 
 	edbm_backbuf_check_and_select_verts_obmode(me, select);
@@ -873,7 +795,7 @@ static void do_lasso_select_paintface(ViewContext *vc, int mcords[][2], short mo
 
 	bm_vertoffs = me->totpoly + 1; /* max index array */
 
-	lasso_select_boundbox(&rect, mcords, moves);
+	BLI_lasso_boundbox(&rect, mcords, moves);
 	EDBM_backbuf_border_mask_init(vc, mcords, moves, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
 	
 	edbm_backbuf_check_and_select_tfaces(me, select);
@@ -893,7 +815,7 @@ static void do_lasso_select_node(int mcords[][2], short moves, short select)
 	short node_cent[2];
 	float node_centf[2];
 	
-	lasso_select_boundbox(&rect, mcords, moves);
+	BLI_lasso_boundbox(&rect, mcords, moves);
 	
 	/* store selection in temp test flag */
 	for (node = snode->edittree->nodes.first; node; node = node->next) {
@@ -902,7 +824,7 @@ static void do_lasso_select_node(int mcords[][2], short moves, short select)
 		node_centf[1] = (node->totr.ymin + node->totr.ymax) / 2;
 		
 		ipoco_to_areaco_noclip(G.v2d, node_centf, node_cent);
-		if (BLI_in_rcti(&rect, node_cent[0], node_cent[1]) && lasso_inside(mcords, moves, node_cent[0], node_cent[1])) {
+		if (BLI_in_rcti(&rect, node_cent[0], node_cent[1]) && BLI_lasso_is_point_inside(mcords, moves, node_cent[0], node_cent[1])) {
 			if (select) {
 				node->flag |= SELECT;
 			}
diff --git a/source/blender/editors/uvedit/uvedit_draw.c b/source/blender/editors/uvedit/uvedit_draw.c
index e772ff5a87a..987f6b250cb 100644
--- a/source/blender/editors/uvedit/uvedit_draw.c
+++ b/source/blender/editors/uvedit/uvedit_draw.c
@@ -198,11 +198,11 @@ static void draw_uvs_stretch(SpaceImage *sima, Scene *scene, BMEditMesh *em, MTe
 					i++;
 				}
 
-				poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, efa->len);
+				uv_poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, efa->len);
 
 				totarea += BM_face_calc_area(efa);
 				//totuvarea += tf_area(tf, efa->v4!=0);
-				totuvarea += poly_uv_area(tf_uv, efa->len);
+				totuvarea += uv_poly_area(tf_uv, efa->len);
 				
 				if (uvedit_face_visible_test(scene, ima, efa, tf)) {
 					BM_elem_flag_enable(efa, BM_ELEM_TAG);
@@ -248,10 +248,10 @@ static void draw_uvs_stretch(SpaceImage *sima, Scene *scene, BMEditMesh *em, MTe
 							i++;
 						}
 
-						poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, efa->len);
+						uv_poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, efa->len);
 
 						//uvarea = tf_area(tf, efa->v4!=0) / totuvarea;
-						uvarea = poly_uv_area(tf_uv, efa->len) / totuvarea;
+						uvarea = uv_poly_area(tf_uv, efa->len) / totuvarea;
 						
 						if (area < FLT_EPSILON || uvarea < FLT_EPSILON)
 							areadiff = 1.0f;
@@ -315,7 +315,7 @@ static void draw_uvs_stretch(SpaceImage *sima, Scene *scene, BMEditMesh *em, MTe
 						copy_v2_v2(tf_uvorig[i], luv->uv);
 					}
 
-					poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, nverts);
+					uv_poly_copy_aspect(tf_uvorig, tf_uv, aspx, aspy, nverts);
 
 					j = nverts - 1;
 					BM_ITER_ELEM_INDEX (l, &liter, efa, BM_LOOPS_OF_FACE, i) {
@@ -742,7 +742,7 @@ static void draw_uvs(SpaceImage *sima, Scene *scene, Object *obedit)
 				continue;
 
 			if (!uvedit_face_select_test(scene, em, efa)) {
-				poly_uv_center(em, efa, cent);
+				uv_poly_center(em, efa, cent);
 				bglVertex2fv(cent);
 			}
 		}
@@ -757,7 +757,7 @@ static void draw_uvs(SpaceImage *sima, Scene *scene, Object *obedit)
 				continue;
 
 			if (uvedit_face_select_test(scene, em, efa)) {
-				poly_uv_center(em, efa, cent);
+				uv_poly_center(em, efa, cent);
 				bglVertex2fv(cent);
 			}
 		}
diff --git a/source/blender/editors/uvedit/uvedit_intern.h b/source/blender/editors/uvedit/uvedit_intern.h
index fdcb5db1911..04d20b3ba09 100644
--- a/source/blender/editors/uvedit/uvedit_intern.h
+++ b/source/blender/editors/uvedit/uvedit_intern.h
@@ -54,14 +54,9 @@ struct BMVert;
 int uvedit_face_visible_nolocal(struct Scene *scene, struct BMFace *efa);
 
 /* geometric utilities */
-
-void uv_center(float uv[][2], float cent[2], int quad);
-float uv_area(float uv[][2], int quad);
-void uv_copy_aspect(float uv_orig[][2], float uv[][2], float aspx, float aspy);
-
-float poly_uv_area(float uv[][2], int len);
-void poly_copy_aspect(float uv_orig[][2], float uv[][2], float aspx, float aspy, int len);
-void poly_uv_center(struct BMEditMesh *em, struct BMFace *f, float cent[2]);
+float uv_poly_area(float uv[][2], int len);
+void  uv_poly_copy_aspect(float uv_orig[][2], float uv[][2], float aspx, float aspy, int len);
+void  uv_poly_center(struct BMEditMesh *em, struct BMFace *f, float cent[2]);
 
 /* find nearest */
 
diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c
index 1c62ce3a684..832bf6f57e9 100644
--- a/source/blender/editors/uvedit/uvedit_ops.c
+++ b/source/blender/editors/uvedit/uvedit_ops.c
@@ -522,7 +522,7 @@ void uvedit_live_unwrap_update(SpaceImage *sima, Scene *scene, Object *obedit)
 }
 
 /*********************** geometric utilities ***********************/
-void poly_uv_center(BMEditMesh *em, BMFace *f, float cent[2])
+void uv_poly_center(BMEditMesh *em, BMFace *f, float cent[2])
 {
 	BMLoop *l;
 	MLoopUV *luv;
@@ -538,28 +538,7 @@ void poly_uv_center(BMEditMesh *em, BMFace *f, float cent[2])
 	mul_v2_fl(cent, 1.0f / (float)f->len);
 }
 
-
-void uv_center(float uv[][2], float cent[2], int quad)
-{
-	if (quad) {
-		cent[0] = (uv[0][0] + uv[1][0] + uv[2][0] + uv[3][0]) / 4.0f;
-		cent[1] = (uv[0][1] + uv[1][1] + uv[2][1] + uv[3][1]) / 4.0f;
-	}
-	else {
-		cent[0] = (uv[0][0] + uv[1][0] + uv[2][0]) / 3.0f;
-		cent[1] = (uv[0][1] + uv[1][1] + uv[2][1]) / 3.0f;
-	}
-}
-
-float uv_area(float uv[][2], int quad)
-{
-	if (quad)
-		return area_tri_v2(uv[0], uv[1], uv[2]) + area_tri_v2(uv[0], uv[2], uv[3]); 
-	else
-		return area_tri_v2(uv[0], uv[1], uv[2]); 
-}
-
-float poly_uv_area(float uv[][2], int len)
+float uv_poly_area(float uv[][2], int len)
 {
 	//BMESH_TODO: make this not suck
 	//maybe use scanfill? I dunno.
@@ -572,7 +551,7 @@ float poly_uv_area(float uv[][2], int len)
 	return 1.0;
 }
 
-void poly_copy_aspect(float uv_orig[][2], float uv[][2], float aspx, float aspy, int len)
+void uv_poly_copy_aspect(float uv_orig[][2], float uv[][2], float aspx, float aspy, int len)
 {
 	int i;
 	for (i = 0; i < len; i++) {
@@ -2469,7 +2448,7 @@ static int border_select_exec(bContext *C, wmOperator *op)
 
 			tf = CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY);
 			if (uvedit_face_visible_test(scene, ima, efa, tf)) {
-				poly_uv_center(em, efa, cent);
+				uv_poly_center(em, efa, cent);
 				if (BLI_in_rctf(&rectf, cent[0], cent[1])) {
 					BM_elem_flag_enable(efa, BM_ELEM_TAG);
 					change = 1;