replace BLI_array_growone() with BLI_array_growitems() when the size of the increase is known ahead of time, will reduce reallocs and give some speedup.

3 files changed, 11 insertions, 11 deletions

diff --git a/source/blender/blenkernel/intern/DerivedMesh.c b/source/blender/blenkernel/intern/DerivedMesh.c
index 6a98ab324cb..67a4d6657c9 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -1112,8 +1112,8 @@ void DM_update_weight_mcol(Object *ob, DerivedMesh *dm, int const draw_flag,
 			for (i=0; i<dm->numPolyData; i++, mp++) {
 				ml = mloop + mp->loopstart;
 
-				for (j=0; j<mp->totloop; j++, ml++, totloop++) {
-					BLI_array_growone(wtcol_l);
+				BLI_array_growitems(wtcol_l, mp->totloop);
+				for (j = 0; j < mp->totloop; j++, ml++, totloop++) {
 					copy_v4_v4_char((char *)&wtcol_l[totloop],
 					                (char *)&wtcol_v[4 * ml->v]);
 				}
diff --git a/source/blender/blenkernel/intern/modifiers_bmesh.c b/source/blender/blenkernel/intern/modifiers_bmesh.c
index 3d1349f09ed..c54a622be7e 100644
--- a/source/blender/blenkernel/intern/modifiers_bmesh.c
+++ b/source/blender/blenkernel/intern/modifiers_bmesh.c
@@ -171,10 +171,11 @@ BMEditMesh *CDDM_To_BMesh(Object *ob, DerivedMesh *dm, BMEditMesh *existing, int
 		BLI_array_empty(verts);
 		BLI_array_empty(edges);
 
+		BLI_array_growitems(verts, mp->totloop);
+		BLI_array_growitems(edges, mp->totloop);
+
 		ml = mloop + mp->loopstart;
-		for (j=0; j<mp->totloop; j++, ml++) {
-			BLI_array_growone(verts);
-			BLI_array_growone(edges);
+		for (j = 0; j < mp->totloop; j++, ml++) {
 
 			verts[j] = vtable[ml->v];
 			edges[j] = etable[ml->e];
diff --git a/source/blender/blenkernel/intern/subsurf_ccg.c b/source/blender/blenkernel/intern/subsurf_ccg.c
index 76077fe3a14..f8fec9911fb 100644
--- a/source/blender/blenkernel/intern/subsurf_ccg.c
+++ b/source/blender/blenkernel/intern/subsurf_ccg.c
@@ -3040,17 +3040,16 @@ static CCGDerivedMesh *getCCGDerivedMesh(CCGSubSurf *ss,
 		/* set the face base vert */
 		*((int*)ccgSubSurf_getFaceUserData(ss, f)) = vertNum;
 
-		BLI_array_empty(loopidx);		
-		for (s=0; s<numVerts; s++) {
-			BLI_array_growone(loopidx);
+		BLI_array_empty(loopidx);
+		BLI_array_growitems(loopidx, numVerts);
+		for (s = 0; s < numVerts; s++) {
 			loopidx[s] = loopindex++;
 		}
 		
 		BLI_array_empty(vertidx);
-				for(s = 0; s < numVerts; s++) {
+		BLI_array_growitems(vertidx, numVerts);
+		for (s = 0; s < numVerts; s++) {
 			CCGVert *v = ccgSubSurf_getFaceVert(ss, f, s);
-			
-			BLI_array_growone(vertidx);
 			vertidx[s] = GET_INT_FROM_POINTER(ccgSubSurf_getVertVertHandle(v));
 		}