Armature related fixes and cleanups:

* Armatures that had constraint targets inside other armatures
  weren't transform()-ing correctly

* Issues with lattice deformed objects that are parents of bones
  when rendering an animation. Seems to be mostly OK now with the
  exception of the first rendered frame -- weird bugs like this have
  plagued blender for ages, which leads me to believe that
  RE_rotateBlenderScene() is a piece of garbage that nobody understands
  (especially me).

* made a few helper functions to clean up some repeated code related
  to clearing constraint status and rebuilding displists.

source/blender/blenkernel/BKE_constraint.h

@@ -51,6 +51,8 @@ struct bConstraintChannel *clone_constraint_channels (struct ListBase *dst, stru
 void relink_constraints (struct ListBase *list);
 void free_constraint_data (struct bConstraint *con);
 void clear_object_constraint_status (struct Object *ob);
+void clear_all_constraints(void);
+void rebuild_all_armature_displists(void);
 void do_constraint_channels (struct ListBase *conbase, struct ListBase *chanbase, float ctime);
 short get_constraint_target (struct bConstraint *con, short ownertype, void *ownerdata, float mat[][4], float size[3], float time);
 struct bConstraintChannel *find_constraint_channel (ListBase *list, const char *name);

source/blender/blenkernel/intern/constraint.c

@@ -45,6 +45,7 @@
 #include "DNA_object_types.h"
 #include "DNA_action_types.h"
 #include "DNA_curve_types.h"
+#include "DNA_scene_types.h"
 
 #include "BKE_utildefines.h"
 #include "BKE_action.h"
@@ -407,6 +408,27 @@ void clear_object_constraint_status (Object *ob)
 	}
 }
 
+void clear_all_constraints(void)
+{
+	Base *base;
+
+	/* Clear the constraint "done" flags -- this must be done
+	 * before displists are calculated for objects that are
+	 * deformed by armatures */
+	for (base = G.scene->base.first; base; base=base->next){
+		clear_object_constraint_status(base->object);
+	}
+}
+
+void rebuild_all_armature_displists(void) {
+	Base *base;
+
+	for (base = G.scene->base.first; base; base=base->next){
+		clear_object_constraint_status(base->object);
+		make_displists_by_armature(base->object);
+	}
+}
+
 short get_constraint_target (bConstraint *con, short ownertype, void* ownerdata, float mat[][4], float size[3], float ctime)
 {
 	short valid=0;

source/blender/blenkernel/intern/scene.c

@@ -75,6 +75,7 @@
 #include "BKE_global.h"
 #include "BKE_main.h"
 #include "BKE_anim.h"
+#include "BKE_constraint.h"
 
 #include "BKE_library.h"
 
@@ -407,6 +408,7 @@ void set_scene_bg(Scene *sce)
 	do_all_keys();
 #ifdef __NLA
 	do_all_actions();
+	rebuild_all_armature_displists();
 #endif
 	do_all_ikas();
 

source/blender/renderconverter/intern/convertBlenderScene.c

@@ -2813,6 +2813,7 @@ void RE_rotateBlenderScene(void)
 	do_all_keys();
 #ifdef __NLA
 	do_all_actions();
+	rebuild_all_armature_displists();
 #endif
 	do_all_ikas();
 	test_all_displists();
@@ -2831,7 +2832,6 @@ void RE_rotateBlenderScene(void)
 		clear_object_constraint_status(base->object);
 		if (base->object->type==OB_ARMATURE) {
 			where_is_armature (base->object);
-			make_displists_by_armature(base->object);
 		}
 		else
 

source/blender/src/drawview.c

@@ -1390,7 +1390,6 @@ void do_viewbuts(unsigned short event)
 			bPoseChannel *chan;
 			bArmature *arm;
 			Bone *bone;
-			Base *base;
 
 			arm = get_armature(OBACT);
 			if (!arm) return;
@@ -1411,10 +1410,7 @@ void do_viewbuts(unsigned short event)
 			
 			set_pose_channel (G.obpose->pose, chan);
 
-			for (base = G.scene->base.first; base; base=base->next){
-				clear_object_constraint_status(base->object);
-				make_displists_by_armature(base->object);
-			}
+			rebuild_all_armature_displists();
 
 			allqueue(REDRAWVIEW3D, 1);
 		}
@@ -1688,10 +1684,7 @@ void drawview3dspace(ScrArea *sa, void *spacedata)
 	 * or else armatures/poses/displists get recalculated all of the
 	 * time
 	 */
-	/* Clear the constraint "done" flags */
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
+	clear_all_constraints();
 #endif
 
 	/* draw set first */
@@ -1897,12 +1890,7 @@ void drawview3d_render(struct View3D *v3d)
 	/* abuse! to make sure it doesnt draw the helpstuff */
 	G.f |= G_SIMULATION;
 
-	/* Clear the constraint "done" flags -- this must be done
-	 * before displists are calculated for objects that are
-	 * deformed by armatures */
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
+	clear_all_constraints();
 	do_all_ipos();
 	BPY_do_all_scripts(SCRIPT_FRAMECHANGED);
 	do_all_keys();
@@ -1955,9 +1943,9 @@ void drawview3d_render(struct View3D *v3d)
 		
 		G.f &= ~G_PICKSEL;
 	}
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
+
+	clear_all_constraints();
+
 	/* first not selected and duplis */
 	base= G.scene->base.first;
 	while(base) {
@@ -2383,12 +2371,7 @@ void inner_play_anim_loop(int init, int mode)
 
 	set_timecursor(CFRA);
 
-	/* Clear the constraint "done" flags -- this must be done
-	 * before displists are calculated for objects that are
-	 * deformed by armatures */
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
+	clear_all_constraints();
 	do_all_ipos();
 	BPY_do_all_scripts(SCRIPT_FRAMECHANGED);
 	do_all_keys();
@@ -2489,13 +2472,7 @@ int play_anim(int mode)
 	if(event==SPACEKEY);
 	else CFRA= cfraont;
 
-	/* Clear the constraint "done" flags -- this must be done
-	 * before displists are calculated for objects that are
-	 * deformed by armatures */
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
-
+	clear_all_constraints();
 	do_all_ipos();
 	do_all_keys();
 	do_all_actions();

source/blender/src/editobject.c

@@ -2629,21 +2629,23 @@ static void clear_pose_update_flag(Object *ob) {
 	}
 }
 
-static void pose_flags_reset_done(Object *ob) {
+static int pose_flags_reset_done(Object *ob) {
 	/* Clear the constraint done status for every pose channe;
 	 * that has been flagged as needing constant updating
 	 */
 	bPoseChannel *chan;
+	int numreset = 0;
 
 	if (ob->pose) {
 		for (chan = ob->pose->chanbase.first; chan; chan=chan->next){
 			if (chan->flag & PCHAN_TRANS_UPDATE) {
 				chan->flag &= ~PCHAN_DONE;
+				numreset++;
 			}
 
 		}
 	}
-
+	return numreset;
 }
 
 static int is_ob_constraint_target(Object *ob, ListBase *conlist) {
@@ -2998,6 +3000,22 @@ static int pose_do_update_flag(Object *ob) {
 	return do_update;
 }
 
+void figure_pose_updating(void)
+{
+	Base *base;
+
+	flag_moving_objects();
+
+	for (base= FIRSTBASE; base; base= base->next) {
+		/* Recalculate the pose if necessary, regardless of
+		 * whether the layer is visible or not.
+		 */
+		if (pose_do_update_flag(base->object))
+			base->flag |= BA_WHERE_UPDATE;
+	}
+
+}
+
 /*** POSE FIGURIN' -- END ***/
 
 
@@ -3014,18 +3032,10 @@ static void setbaseflags_for_editing(int mode)	/* 0,'g','r','s' */
 	Base *base;
 	
 	copy_baseflags();
-	flag_moving_objects();
-
 
 	for (base= FIRSTBASE; base; base= base->next) {
 		base->flag &= ~(BA_PARSEL+BA_WASSEL);
 
-		/* Recalculate the pose if necessary, regardless of
-		 * whether the layer is visible or not.
-		 */
-		if (pose_do_update_flag(base->object))
-			base->flag |= BA_WHERE_UPDATE;
-
 		if( (base->lay & G.vd->lay) && base->object->id.lib==0) {
 			Object *ob= base->object;
 			Object *parsel= is_a_parent_selected(ob);
@@ -3700,10 +3710,6 @@ void special_trans_update(int keyflags)
 				base->object->partype |= PARSLOW;
 			}
 			else if(base->flag & BA_WHERE_UPDATE) {
-				/* deal with the armature case */
-				pose_flags_reset_done(base->object);
-				make_displists_by_armature(base->object);
-
 				where_is_object(base->object);
 				if(base->object->type==OB_IKA) {
 					itterate_ika(base->object);
@@ -3724,6 +3730,16 @@ void special_trans_update(int keyflags)
 		
 	}
 
+	base= FIRSTBASE;
+	while(base) {
+		if (pose_flags_reset_done(base->object)) {
+			if (!is_delay_deform())
+				make_displists_by_armature(base->object);
+		}
+
+		base= base->next;
+	}
+
 #if 1
 	if (G.obpose && G.obpose->type == OB_ARMATURE)
 		clear_pose_constraint_status(G.obpose);
@@ -4486,6 +4502,7 @@ void transform(int mode)
 		case OB_ARMATURE:
 			/* figure out which bones need calculating */
 			figure_bone_nocalc(G.obpose);
+			figure_pose_updating();
 			make_trans_bones(mode);
 			break;
 		}
@@ -4497,7 +4514,7 @@ void transform(int mode)
 		else if (mode=='s' || mode=='S') opt= 's';
 		
 		setbaseflags_for_editing(opt);
-		
+		figure_pose_updating();
 		make_trans_objects();
 	}
 	

source/blender/src/headerbuttons.c

@@ -509,13 +509,7 @@ void do_update_for_newframe(int mute)
 	allqueue(REDRAWBUTSSHADING, 0);
 	allqueue(REDRAWBUTSOBJECT, 0);
 
-	/* Clear the constraint "done" flags -- this must be done
-	 * before displists are calculated for objects that are
-	 * deformed by armatures */
-	for (base = G.scene->base.first; base; base=base->next){
-		clear_object_constraint_status(base->object);
-	}
-
+	clear_all_constraints();
 	/* layers/materials, object ipos are calculted in where_is_object (too) */
 	do_all_ipos();
 	BPY_do_all_scripts(SCRIPT_FRAMECHANGED);