- switch to using DAG_object_flush_update instead of mesh_changed

- mesh drawing calculated derived surface before clipping to view matrix,
   waste for offscreen objects

source/blender/blenkernel/intern/mesh.c

@@ -54,6 +54,7 @@
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
 
+#include "BKE_depsgraph.h"
 #include "BKE_main.h"
 #include "BKE_DerivedMesh.h"
 #include "BKE_global.h"
@@ -1273,5 +1274,5 @@ void mesh_set_smooth_flag(Object *meshOb, int enableSmooth) {
 		}
 	}
 
-	mesh_changed(meshOb);
+	DAG_object_flush_update(G.scene, meshOb, OB_RECALC_DATA);
 }

source/blender/src/buttons_editing.c

@@ -397,7 +397,6 @@ void do_common_editbuts(unsigned short event) // old name, is a mix of object an
 	EditFace *efa;
 	Base *base;
 	Object *ob;
-	Mesh *me;
 	Nurb *nu;
 	Curve *cu;
 	BezTriple *bezt;

source/blender/src/drawobject.c

@@ -1920,27 +1920,32 @@ static void draw_mesh_object(Base *base, int dt)
 {
 	Object *ob= base->object;
 	Mesh *me= ob->data;
-	DerivedMesh *baseDM = mesh_get_base_derived(ob);
-	DerivedMesh *realDM = mesh_get_derived(ob);
 	int has_alpha= 0;
 	
 	if(G.obedit && ob->data==G.obedit->data) {
+		DerivedMesh *baseDM = mesh_get_base_derived(ob);
+		DerivedMesh *realDM = mesh_get_derived(ob);
+
 		if(dt>OB_WIRE) init_gl_materials(ob);	// no transp in editmode, the fancy draw over goes bad then
 		draw_em_fancy(ob, G.editMesh, baseDM, realDM, dt);
+
+		baseDM->release(baseDM);
 	}
 	else {
 		if(me->bb==NULL) tex_space_mesh(me);
 		if(me->totface<=4 || boundbox_clip(ob->obmat, me->bb)) {
+			DerivedMesh *baseDM = mesh_get_base_derived(ob);
+			DerivedMesh *realDM = mesh_get_derived(ob);
+
 			if(dt==OB_SOLID) has_alpha= init_gl_materials(ob);
 			draw_mesh_fancy(ob, baseDM, realDM, dt);
+
+			baseDM->release(baseDM);
 		}
 	}
 	
 	/* init_gl_materials did the proper checking if this is needed */
 	if(has_alpha) add_view3d_after(G.vd, base, V3D_TRANSP);
-	
-	baseDM->release(baseDM);
-	
 }
 
 /* ************** DRAW DISPLIST ****************** */

source/blender/src/editface.c

@@ -59,6 +59,7 @@
 #include "DNA_userdef_types.h"
 
 #include "BKE_utildefines.h"
+#include "BKE_depsgraph.h"
 #include "BKE_displist.h"
 #include "BKE_global.h"
 #include "BKE_mesh.h"
@@ -885,7 +886,8 @@ void rotate_uv_tface()
 	}
 	
 	BIF_undo_push("Rotate UV face");
-	mesh_changed(OBACT);
+	DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA);
+	
 	allqueue(REDRAWVIEW3D, 0);
 	allqueue(REDRAWIMAGE, 0);
 }
@@ -1228,7 +1230,7 @@ void set_faceselect()	/* toggle */
 	else if((G.f & (G_WEIGHTPAINT|G_VERTEXPAINT|G_TEXTUREPAINT))==0) {
 		if(me) {
 			reveal_tface();
-			mesh_changed(ob);
+			DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 		}
 		setcursor_space(SPACE_VIEW3D, CURSOR_STD);
 		BIF_undo_push("End UV Faceselect");

source/blender/src/editobject.c

@@ -2347,7 +2347,7 @@ void flip_subdivison(Object *ob, int level)
 	allqueue(REDRAWVIEW3D, 0);
 	allqueue(REDRAWOOPS, 0);
 	allqueue(REDRAWBUTSEDIT, 0);
-	mesh_changed(ob);
+	DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 	
 	BIF_undo_push("Switch subsurf on/off");
 }

source/blender/src/editsima.c

@@ -59,6 +59,7 @@
 #include "DNA_image_types.h"
 #include "DNA_object_types.h" // only for uvedit_selectionCB() (struct Object)
 
+#include "BKE_depsgraph.h"
 #include "BKE_global.h"
 #include "BKE_mesh.h"
 #include "BKE_displist.h"
@@ -761,7 +762,7 @@ void transform_tface_uv(int mode, int context)	// 2 args, for callback
 	G.moving= 0;
 	prop_size*= 3;
 	
-	mesh_changed(OBACT);
+	DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA);
 	allqueue(REDRAWVIEW3D, 0);
 
 	if(event!=ESCKEY && event!=RIGHTMOUSE)

source/blender/src/toolbox.c

@@ -67,6 +67,7 @@
 #include "BLI_blenlib.h"
 #include "BLI_arithb.h"
 
+#include "BKE_depsgraph.h"
 #include "BKE_plugin_types.h"
 #include "BKE_utildefines.h"
 #include "BKE_mesh.h"
@@ -1808,8 +1809,8 @@ static void tb_do_mesh(void *arg, int event){
 	case 2: G.f ^= G_DRAWEDGES; break;
 	case 3: G.f ^= G_DRAWFACES; break;
 	case 4: G.f ^= G_DRAWNORMALS; break;
-	case 5: me->flag ^= ME_SUBSURF; mesh_changed(OBACT); break;
-	case 6: me->flag ^= ME_OPT_EDGES; mesh_changed(OBACT); break;
+	case 5: me->flag ^= ME_SUBSURF; DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA); break;
+	case 6: me->flag ^= ME_OPT_EDGES; DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA); break;
 	}
 	addqueue(curarea->win, REDRAW, 1);
 }

source/blender/src/vpaint.c

@@ -60,6 +60,7 @@
 #include "DNA_view3d_types.h"
 #include "DNA_userdef_types.h"
 
+#include "BKE_depsgraph.h"
 #include "BKE_displist.h"
 #include "BKE_global.h"
 #include "BKE_mesh.h"
@@ -766,7 +767,7 @@ void wpaint_undo (void){
 	me->dvert= MEM_mallocN(sizeof(MDeformVert)*me->totvert, "deformVert");
 	copy_dverts(me->dvert, wpaintundobuf, totwpaintundo);
 
-	mesh_changed(OBACT);
+	DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA);
 	scrarea_do_windraw(curarea);
 	
 }
@@ -940,7 +941,7 @@ void weight_paint(void)
 		me->mcol= 0;
 	}
 	
-	mesh_changed(ob);
+	DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 	// this flag is event for softbody to refresh weightpaint values
 	if(ob->soft) ob->softflag |= OB_SB_REDO;
 	
@@ -1153,7 +1154,7 @@ void set_wpaint(void)		/* toggle */
 	else {
 		freefastshade();	/* to be sure */
 		if (me) {
-			mesh_changed(ob);
+			DAG_object_flush_update(G.scene, OBACT, OB_RECALC_DATA);
 		}
 		if(!(G.f & G_FACESELECT))
 			setcursor_space(SPACE_VIEW3D, CURSOR_STD);
@@ -1202,7 +1203,7 @@ void set_vpaint(void)		/* toggle */
 	else {
 		freefastshade();	/* to be sure */
 		if (me) {
-			mesh_changed(ob);
+			DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);
 		}
 		if((G.f & G_FACESELECT)==0) setcursor_space(SPACE_VIEW3D, CURSOR_STD);
 	}