bmesh api todo:

emDM_getTessFaceDataArray now returns UV's and Colors from editmode loops.

1 files changed, 26 insertions, 12 deletions

diff --git a/source/blender/blenkernel/intern/editderivedmesh.c b/source/blender/blenkernel/intern/editderivedmesh.c
index abc74983d2b..c53b11aa60c 100644
--- a/source/blender/blenkernel/intern/editderivedmesh.c
+++ b/source/blender/blenkernel/intern/editderivedmesh.c
@@ -1492,35 +1492,49 @@ static void *emDM_getTessFaceDataArray(DerivedMesh *dm, int type)
 {
 	EditDerivedBMesh *bmdm= (EditDerivedBMesh*) dm;
 	BMesh *bm= bmdm->tc->bm;
-	BMFace *efa;
-	char *data, *bmdata;
 	void *datalayer;
-	int index /*, offset*/ /*UNUSED */, size, i;
 
 	datalayer = DM_get_tessface_data_layer(dm, type);
 	if (datalayer)
 		return datalayer;
 
-	/* layers are store per face for editmesh, we convert to a tbmporary
+	/* layers are store per face for editmesh, we convert to a temporary
 	 * data layer array in the derivedmesh when these are requested */
 	if (type == CD_MTFACE || type == CD_MCOL) {
-		index = CustomData_get_layer_index(&bm->pdata, type);
+		const int type_from = (type == CD_MTFACE) ? CD_MTEXPOLY : CD_MLOOPCOL;
+		int index;
+		char *data, *bmdata;
+		index = CustomData_get_layer_index(&bm->pdata, type_from);
 
 		if (index != -1) {
 			/* offset = bm->pdata.layers[index].offset; */ /* UNUSED */
-			size = CustomData_sizeof(type);
+			const int size = CustomData_sizeof(type);
+			int i, j;
 
 			DM_add_tessface_layer(dm, type, CD_CALLOC, NULL);
 			index = CustomData_get_layer_index(&dm->faceData, type);
 			dm->faceData.layers[index].flag |= CD_FLAG_TEMPORARY;
 
 			data = datalayer = DM_get_tessface_data_layer(dm, type);
-			for (i=0; i<bmdm->tc->tottri; i++, data+=size) {
-				efa = bmdm->tc->looptris[i][0]->f;
-				/* BMESH_TODO: need to still add tface data,
-				 * derived from the loops.*/
-				bmdata = CustomData_bmesh_get(&bm->pdata, efa->head.data, type);
-				memcpy(data, bmdata, size);
+
+			if (type == CD_MTFACE) {
+				for (i = 0; i < bmdm->tc->tottri; i++, data += size) {
+					BMFace *efa = bmdm->tc->looptris[i][0]->f;
+					bmdata = CustomData_bmesh_get(&bm->pdata, efa->head.data, CD_MTEXPOLY);
+					ME_MTEXFACE_CPY(((MTFace *)data), ((MTexPoly *)bmdata));
+					for (j = 0; j < 3; j++) {
+						bmdata = CustomData_bmesh_get(&bm->ldata, bmdm->tc->looptris[i][j]->head.data, CD_MLOOPUV);
+						copy_v2_v2(((MTFace *)data)->uv[j], ((MLoopUV *)bmdata)->uv);
+					}
+				}
+			}
+			else {
+				for (i = 0; i < bmdm->tc->tottri; i++, data += size) {
+					for (j = 0; j < 3; j++) {
+						bmdata = CustomData_bmesh_get(&bm->ldata, bmdm->tc->looptris[i][j]->head.data, CD_MLOOPCOL);
+						MESH_MLOOPCOL_TO_MCOL(((MLoopCol *)bmdata), (((MCol *)data) + j));
+					}
+				}
 			}
 		}
 	}