Revision: 57014
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=57014
Author:   campbellbarton
Date:     2013-05-25 09:46:28 +0000 (Sat, 25 May 2013)
Log Message:
-----------
bmesh: optimize iterator size using a union for iterator specific data.
on 64bit system reduces the struct to 64bytes, was 120, also avoids 
initializing unused values.

Modified Paths:
--------------
    trunk/blender/source/blender/bmesh/intern/bmesh_iterators.c
    trunk/blender/source/blender/bmesh/intern/bmesh_iterators.h
    trunk/blender/source/blender/bmesh/intern/bmesh_iterators_inline.h

Modified: trunk/blender/source/blender/bmesh/intern/bmesh_iterators.c
===================================================================
--- trunk/blender/source/blender/bmesh/intern/bmesh_iterators.c 2013-05-25 
09:33:08 UTC (rev 57013)
+++ trunk/blender/source/blender/bmesh/intern/bmesh_iterators.c 2013-05-25 
09:46:28 UTC (rev 57014)
@@ -286,22 +286,7 @@
        return count;
 }
 
-
 /**
- * \brief Init Iterator
- *
- * Clears the internal state of an iterator for begin() callbacks.
- */
-static void init_iterator(BMIter *iter)
-{
-//     iter->v_first = iter->v_next = NULL; // UNUSED
-       iter->e_first = iter->e_next = NULL;
-       iter->l_first = iter->l_next = NULL;
-//     iter->f_first = iter->f_next = NULL; // UNUSED
-       iter->ldata = NULL;
-}
-
-/**
  * Notes on iterator implementation:
  *
  * Iterators keep track of the next element in a sequence.
@@ -319,88 +304,90 @@
  * VERT OF MESH CALLBACKS
  */
 
-void bmiter__vert_of_mesh_begin(BMIter *iter)
+void bmiter__vert_of_mesh_begin(struct BMIter__vert_of_mesh *iter)
 {
        BLI_mempool_iternew(iter->bm->vpool, &iter->pooliter);
 }
 
-void  *bmiter__vert_of_mesh_step(BMIter *iter)
+void *bmiter__vert_of_mesh_step(struct BMIter__vert_of_mesh *iter)
 {
        return BLI_mempool_iterstep(&iter->pooliter);
-
 }
 
-void  bmiter__edge_of_mesh_begin(BMIter *iter)
+void bmiter__edge_of_mesh_begin(struct BMIter__edge_of_mesh *iter)
 {
        BLI_mempool_iternew(iter->bm->epool, &iter->pooliter);
-       iter->count = iter->bm->totedge;  /* */
 }
 
-void  *bmiter__edge_of_mesh_step(BMIter *iter)
+void  *bmiter__edge_of_mesh_step(struct BMIter__edge_of_mesh *iter)
 {
        return BLI_mempool_iterstep(&iter->pooliter);
-
 }
 
-void  bmiter__face_of_mesh_begin(BMIter *iter)
+void  bmiter__face_of_mesh_begin(struct BMIter__face_of_mesh *iter)
 {
        BLI_mempool_iternew(iter->bm->fpool, &iter->pooliter);
 }
 
-void  *bmiter__face_of_mesh_step(BMIter *iter)
+void  *bmiter__face_of_mesh_step(struct BMIter__face_of_mesh *iter)
 {
        return BLI_mempool_iterstep(&iter->pooliter);
-
 }
 
 /*
  * EDGE OF VERT CALLBACKS
  */
 
-void  bmiter__edge_of_vert_begin(BMIter *iter)
+void  bmiter__edge_of_vert_begin(struct BMIter__edge_of_vert *iter)
 {
-       init_iterator(iter);
        if (iter->vdata->e) {
                iter->e_first = iter->vdata->e;
                iter->e_next = iter->vdata->e;
        }
+       else {
+               iter->e_first = NULL;
+               iter->e_next = NULL;
+       }
 }
 
-void  *bmiter__edge_of_vert_step(BMIter *iter)
+void  *bmiter__edge_of_vert_step(struct BMIter__edge_of_vert *iter)
 {
-       BMEdge *current = iter->e_next;
+       BMEdge *e_curr = iter->e_next;
 
-       if (iter->e_next)
+       if (iter->e_next) {
                iter->e_next = bmesh_disk_edge_next(iter->e_next, iter->vdata);
-       
-       if (iter->e_next == iter->e_first) iter->e_next = NULL;
+               if (iter->e_next == iter->e_first) {
+                       iter->e_next = NULL;
+               }
+       }
 
-       return current;
+       return e_curr;
 }
 
 /*
  * FACE OF VERT CALLBACKS
  */
 
-void  bmiter__face_of_vert_begin(BMIter *iter)
+void  bmiter__face_of_vert_begin(struct BMIter__face_of_vert *iter)
 {
-       init_iterator(iter);
-       iter->count = 0;
-       if (iter->vdata->e)
-               iter->count = bmesh_disk_facevert_count(iter->vdata);
-       if (iter->count) {
+       ((BMIter *)iter)->count = bmesh_disk_facevert_count(iter->vdata);
+       if (((BMIter *)iter)->count) {
                iter->e_first = bmesh_disk_faceedge_find_first(iter->vdata->e, 
iter->vdata);
                iter->e_next = iter->e_first;
                iter->l_first = 
bmesh_radial_faceloop_find_first(iter->e_first->l, iter->vdata);
                iter->l_next = iter->l_first;
        }
+       else {
+               iter->l_first = iter->l_next = NULL;
+               iter->e_first = iter->e_next = NULL;
+       }
 }
-void  *bmiter__face_of_vert_step(BMIter *iter)
+void  *bmiter__face_of_vert_step(struct BMIter__face_of_vert *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
 
-       if (iter->count && iter->l_next) {
-               iter->count--;
+       if (((BMIter *)iter)->count && iter->l_next) {
+               ((BMIter *)iter)->count--;
                iter->l_next = bmesh_radial_faceloop_find_next(iter->l_next, 
iter->vdata);
                if (iter->l_next == iter->l_first) {
                        iter->e_next = 
bmesh_disk_faceedge_find_next(iter->e_next, iter->vdata);
@@ -409,9 +396,11 @@
                }
        }
        
-       if (!iter->count) iter->l_next = NULL;
+       if (!((BMIter *)iter)->count) {
+               iter->l_next = NULL;
+       }
 
-       return current ? current->f : NULL;
+       return l_curr ? l_curr->f : NULL;
 }
 
 
@@ -420,25 +409,26 @@
  *
  */
 
-void  bmiter__loop_of_vert_begin(BMIter *iter)
+void  bmiter__loop_of_vert_begin(struct BMIter__loop_of_vert *iter)
 {
-       init_iterator(iter);
-       iter->count = 0;
-       if (iter->vdata->e)
-               iter->count = bmesh_disk_facevert_count(iter->vdata);
-       if (iter->count) {
+       ((BMIter *)iter)->count = bmesh_disk_facevert_count(iter->vdata);
+       if (((BMIter *)iter)->count) {
                iter->e_first = bmesh_disk_faceedge_find_first(iter->vdata->e, 
iter->vdata);
                iter->e_next = iter->e_first;
                iter->l_first = 
bmesh_radial_faceloop_find_first(iter->e_first->l, iter->vdata);
                iter->l_next = iter->l_first;
        }
+       else {
+               iter->l_first = iter->l_next = NULL;
+               iter->e_first = iter->e_next = NULL;
+       }
 }
-void  *bmiter__loop_of_vert_step(BMIter *iter)
+void  *bmiter__loop_of_vert_step(struct BMIter__loop_of_vert *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
 
-       if (iter->count) {
-               iter->count--;
+       if (((BMIter *)iter)->count) {
+               ((BMIter *)iter)->count--;
                iter->l_next = bmesh_radial_faceloop_find_next(iter->l_next, 
iter->vdata);
                if (iter->l_next == iter->l_first) {
                        iter->e_next = 
bmesh_disk_faceedge_find_next(iter->e_next, iter->vdata);
@@ -447,107 +437,86 @@
                }
        }
        
-       if (!iter->count) iter->l_next = NULL;
-
-       
-       if (current) {
-               return current;
+       if (!((BMIter *)iter)->count) {
+               iter->l_next = NULL;
        }
 
-       return NULL;
+       /* NULL on finish */
+       return l_curr;
 }
 
+/*
+ * LOOP OF EDGE CALLBACKS
+ */
 
-void  bmiter__loops_of_edge_begin(BMIter *iter)
+void  bmiter__loop_of_edge_begin(struct BMIter__loop_of_edge *iter)
 {
-       BMLoop *l;
-
-       l = iter->edata->l;
-
-       /* note sure why this sets ldata ... */
-       init_iterator(iter);
-       
-       iter->l_first = iter->l_next = l;
+       iter->l_first = iter->l_next = iter->edata->l;
 }
 
-void  *bmiter__loops_of_edge_step(BMIter *iter)
+void  *bmiter__loop_of_edge_step(struct BMIter__loop_of_edge *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
 
        if (iter->l_next) {
                iter->l_next = iter->l_next->radial_next;
+               if (iter->l_next == iter->l_first) {
+                       iter->l_next = NULL;
+               }
        }
 
-       if (iter->l_next == iter->l_first) {
-               iter->l_next = NULL;
-       }
-
-       if (current) {
-               return current;
-       }
-
-       return NULL;
+       /* NULL on finish */
+       return l_curr;
 }
 
-void  bmiter__loops_of_loop_begin(BMIter *iter)
-{
-       BMLoop *l;
+/*
+ * LOOP OF LOOP CALLBACKS
+ */
 
-       l = iter->ldata;
-
-       /* note sure why this sets ldata ... */
-       init_iterator(iter);
-
-       iter->l_first = l;
+void  bmiter__loop_of_loop_begin(struct BMIter__loop_of_loop *iter)
+{
+       iter->l_first = iter->ldata;
        iter->l_next = iter->l_first->radial_next;
        
        if (iter->l_next == iter->l_first)
                iter->l_next = NULL;
 }
 
-void  *bmiter__loops_of_loop_step(BMIter *iter)
+void  *bmiter__loop_of_loop_step(struct BMIter__loop_of_loop *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
        
        if (iter->l_next) {
                iter->l_next = iter->l_next->radial_next;
+               if (iter->l_next == iter->l_first) {
+                       iter->l_next = NULL;
+               }
        }
 
-       if (iter->l_next == iter->l_first) {
-               iter->l_next = NULL;
-       }
-
-       if (current) {
-               return current;
-       }
-
-       return NULL;
+       /* NULL on finish */
+       return l_curr;
 }
 
 /*
  * FACE OF EDGE CALLBACKS
  */
 
-void  bmiter__face_of_edge_begin(BMIter *iter)
+void  bmiter__face_of_edge_begin(struct BMIter__face_of_edge *iter)
 {
-       init_iterator(iter);
-       
-       if (iter->edata->l) {
-               iter->l_first = iter->edata->l;
-               iter->l_next = iter->edata->l;
-       }
+       iter->l_first = iter->l_next = iter->edata->l;
 }
 
-void  *bmiter__face_of_edge_step(BMIter *iter)
+void  *bmiter__face_of_edge_step(struct BMIter__face_of_edge *iter)
 {
        BMLoop *current = iter->l_next;
 
        if (iter->l_next) {
                iter->l_next = iter->l_next->radial_next;
+               if (iter->l_next == iter->l_first) {
+                       iter->l_next = NULL;
+               }
        }
 
-       if (iter->l_next == iter->l_first) iter->l_next = NULL;
-
        return current ? current->f : NULL;
 }
 
@@ -555,19 +524,17 @@
  * VERTS OF EDGE CALLBACKS
  */
 
-void  bmiter__vert_of_edge_begin(BMIter *iter)
+void  bmiter__vert_of_edge_begin(struct BMIter__vert_of_edge *iter)
 {
-       init_iterator(iter);
-       iter->count = 0;
+       ((BMIter *)iter)->count = 0;
 }
 
-void  *bmiter__vert_of_edge_step(BMIter *iter)
+void  *bmiter__vert_of_edge_step(struct BMIter__vert_of_edge *iter)
 {
-       iter->count++;
-       switch (iter->count) {
-               case 1:
+       switch (((BMIter *)iter)->count++) {
+               case 0:
                        return iter->edata->v1;
-               case 2:
+               case 1:
                        return iter->edata->v2;
                default:
                        return NULL;
@@ -578,58 +545,67 @@
  * VERT OF FACE CALLBACKS
  */
 
-void  bmiter__vert_of_face_begin(BMIter *iter)
+void  bmiter__vert_of_face_begin(struct BMIter__vert_of_face *iter)
 {
-       init_iterator(iter);
        iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
 }
 
-void  *bmiter__vert_of_face_step(BMIter *iter)
+void  *bmiter__vert_of_face_step(struct BMIter__vert_of_face *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
 
-       if (iter->l_next) iter->l_next = iter->l_next->next;
-       if (iter->l_next == iter->l_first) iter->l_next = NULL;
+       if (iter->l_next) {
+               iter->l_next = iter->l_next->next;
+               if (iter->l_next == iter->l_first) {
+                       iter->l_next = NULL;
+               }
+       }
 
-       return current ? current->v : NULL;
+       return l_curr ? l_curr->v : NULL;
 }
 
 /*
  * EDGE OF FACE CALLBACKS
  */
 
-void  bmiter__edge_of_face_begin(BMIter *iter)
+void  bmiter__edge_of_face_begin(struct BMIter__edge_of_face *iter)
 {
-       init_iterator(iter);
        iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
 }
 
-void  *bmiter__edge_of_face_step(BMIter *iter)
+void  *bmiter__edge_of_face_step(struct BMIter__edge_of_face *iter)
 {
-       BMLoop *current = iter->l_next;
+       BMLoop *l_curr = iter->l_next;
 
-       if (iter->l_next) iter->l_next = iter->l_next->next;
-       if (iter->l_next == iter->l_first) iter->l_next = NULL;
+       if (iter->l_next) {
+               iter->l_next = iter->l_next->next;
+               if (iter->l_next == iter->l_first) {
+                       iter->l_next = NULL;
+               }
+       }
        
-       return current ? current->e : NULL;
+       return l_curr ? l_curr->e : NULL;
 }
 
 /*
  * LOOP OF FACE CALLBACKS
  */
 
-void  bmiter__loop_of_face_begin(BMIter *iter)
+void  bmiter__loop_of_face_begin(struct BMIter__loop_of_face *iter)
 {
-       init_iterator(iter);
        iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);

@@ Diff output truncated at 10240 characters. @@
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