[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [51420] trunk/blender/source/blender: add option to initialize heap with a known number of elements, since this may be known in advance - it avoids re-allocing too much.
Campbell Barton
ideasman42 at gmail.com
Fri Oct 19 12:40:33 CEST 2012
Revision: 51420
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=51420
Author: campbellbarton
Date: 2012-10-19 10:40:32 +0000 (Fri, 19 Oct 2012)
Log Message:
-----------
add option to initialize heap with a known number of elements, since this may be known in advance - it avoids re-allocing too much.
Modified Paths:
--------------
trunk/blender/source/blender/blenlib/BLI_heap.h
trunk/blender/source/blender/blenlib/intern/BLI_heap.c
trunk/blender/source/blender/bmesh/intern/bmesh_decimate.c
trunk/blender/source/blender/modifiers/intern/MOD_decimate.c
Modified: trunk/blender/source/blender/blenlib/BLI_heap.h
===================================================================
--- trunk/blender/source/blender/blenlib/BLI_heap.h 2012-10-19 10:37:24 UTC (rev 51419)
+++ trunk/blender/source/blender/blenlib/BLI_heap.h 2012-10-19 10:40:32 UTC (rev 51420)
@@ -42,6 +42,7 @@
/* Creates a new heap. BLI_memarena is used for allocating nodes. Removed nodes
* are recycled, so memory usage will not shrink. */
+Heap *BLI_heap_new_ex(unsigned int tot_reserve);
Heap *BLI_heap_new(void);
void BLI_heap_free(Heap *heap, HeapFreeFP ptrfreefp);
Modified: trunk/blender/source/blender/blenlib/intern/BLI_heap.c
===================================================================
--- trunk/blender/source/blender/blenlib/intern/BLI_heap.c 2012-10-19 10:37:24 UTC (rev 51419)
+++ trunk/blender/source/blender/blenlib/intern/BLI_heap.c 2012-10-19 10:40:32 UTC (rev 51420)
@@ -67,16 +67,22 @@
/***/
-Heap *BLI_heap_new(void)
+/* use when the size of the heap is known in advance */
+Heap *BLI_heap_new_ex(unsigned int tot_reserve)
{
Heap *heap = (Heap *)MEM_callocN(sizeof(Heap), __func__);
- heap->bufsize = 1;
- heap->tree = (HeapNode **)MEM_mallocN(sizeof(HeapNode *), "BLIHeapTree");
+ heap->bufsize = tot_reserve;
+ heap->tree = (HeapNode **)MEM_mallocN(tot_reserve * sizeof(HeapNode *), "BLIHeapTree");
heap->arena = BLI_memarena_new(1 << 16, "heap arena");
return heap;
}
+Heap *BLI_heap_new(void)
+{
+ return BLI_heap_new_ex(1);
+}
+
void BLI_heap_free(Heap *heap, HeapFreeFP ptrfreefp)
{
int i;
Modified: trunk/blender/source/blender/bmesh/intern/bmesh_decimate.c
===================================================================
--- trunk/blender/source/blender/bmesh/intern/bmesh_decimate.c 2012-10-19 10:37:24 UTC (rev 51419)
+++ trunk/blender/source/blender/bmesh/intern/bmesh_decimate.c 2012-10-19 10:40:32 UTC (rev 51420)
@@ -531,7 +531,7 @@
/* alloc vars */
vquadrics = MEM_callocN(sizeof(Quadric) * bm->totvert, __func__);
- eheap = BLI_heap_new();
+ eheap = BLI_heap_new_ex(bm->totedge);
eheap_table = MEM_callocN(sizeof(HeapNode *) * bm->totedge, __func__);
tot_edge_orig = bm->totedge;
Modified: trunk/blender/source/blender/modifiers/intern/MOD_decimate.c
===================================================================
--- trunk/blender/source/blender/modifiers/intern/MOD_decimate.c 2012-10-19 10:37:24 UTC (rev 51419)
+++ trunk/blender/source/blender/modifiers/intern/MOD_decimate.c 2012-10-19 10:40:32 UTC (rev 51420)
@@ -47,7 +47,11 @@
#include "BKE_particle.h"
#include "BKE_cdderivedmesh.h"
+#include "BKE_tessmesh.h"
+/* testing only! - Campbell */
+// #define USE_DECIMATE_BMESH
+
#ifdef WITH_MOD_DECIMATE
#include "LOD_decimation.h"
#endif
@@ -70,12 +74,39 @@
}
#ifdef WITH_MOD_DECIMATE
+#ifdef USE_DECIMATE_BMESH
+
+#include "bmesh.h"
+
static DerivedMesh *applyModifier(ModifierData *md, Object *UNUSED(ob),
DerivedMesh *derivedData,
ModifierApplyFlag UNUSED(flag))
{
DecimateModifierData *dmd = (DecimateModifierData *) md;
DerivedMesh *dm = derivedData, *result = NULL;
+ BMEditMesh *em;
+ BMesh *bm;
+
+ em = DM_to_editbmesh(dm, NULL, FALSE);
+ bm = em->bm;
+
+ BM_mesh_decimate(bm, dmd->percent);
+
+ BLI_assert(em->looptris == NULL);
+ result = CDDM_from_BMEditMesh(em, NULL, TRUE, FALSE);
+ BMEdit_Free(em);
+ MEM_freeN(em);
+
+ return result;
+}
+
+#else
+static DerivedMesh *applyModifier(ModifierData *md, Object *UNUSED(ob),
+ DerivedMesh *derivedData,
+ ModifierApplyFlag UNUSED(flag))
+{
+ DecimateModifierData *dmd = (DecimateModifierData *) md;
+ DerivedMesh *dm = derivedData, *result = NULL;
MVert *mvert;
MFace *mface;
LOD_Decimation_Info lod;
@@ -192,6 +223,7 @@
return dm;
}
}
+#endif // USE_DECIMATE_BMESH
#else // WITH_MOD_DECIMATE
static DerivedMesh *applyModifier(ModifierData *UNUSED(md), Object *UNUSED(ob),
DerivedMesh *derivedData,
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