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2.5 Multires:

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* Fixed a memory corruption bug when deleting a multiresmodifier, was hanging on to a bad pointer. Reported on IRC by lusque
This commit is contained in:
Nicholas Bishop 2009-08-20 17:37:38 +00:00
parent ec6b14bb07
commit fda97809bc
5 changed files with 41 additions and 26 deletions
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5
source/blender/blenkernel/BKE_multires.h
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@ -35,10 +35,11 @@ struct Object;
typedef struct MultiresSubsurf {
struct MultiresModifierData *mmd;
struct Mesh *me;
struct Object *ob;
} MultiresSubsurf;
/* MultiresDM */
struct Object *MultiresDM_get_object(struct DerivedMesh *dm);
struct Mesh *MultiresDM_get_mesh(struct DerivedMesh *dm);
struct DerivedMesh *MultiresDM_new(struct MultiresSubsurf *, struct DerivedMesh*, int, int, int);
void *MultiresDM_get_vertnorm(struct DerivedMesh *);
@ -59,7 +60,7 @@ void multires_mark_as_modified(struct Object *ob);
void multires_force_update(struct Object *ob);
struct DerivedMesh *multires_dm_create_from_derived(struct MultiresModifierData*, struct DerivedMesh*,
struct Mesh *, int, int);
struct Object *, int, int);
struct MultiresModifierData *find_multires_modifier(struct Object *ob);
int multiresModifier_switch_level(struct Object *, const int);

36
source/blender/blenkernel/intern/cdderivedmesh.c
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@ -1297,7 +1297,7 @@ typedef struct MultiresDM {
IndexNode *vert_face_map_mem, *vert_edge_map_mem;
int *face_offsets;
Mesh *me;
Object *ob;
int modified;
void (*update)(DerivedMesh*);
@ -1308,15 +1308,19 @@ static void MultiresDM_release(DerivedMesh *dm)
MultiresDM *mrdm = (MultiresDM*)dm;
int mvert_layer;
/* Check that mmd still exists */
if(BLI_findindex(&mrdm->ob->modifiers, mrdm->mmd) < 0)
mrdm->mmd = NULL;
/* Before freeing, need to update the displacement map */
if(dm->needsFree && mrdm->modified)
if(dm->needsFree && mrdm->modified && mrdm->mmd)
mrdm->update(dm);
/* If the MVert data is being used as the sculpt undo store, don't free it */
mvert_layer = CustomData_get_layer_index(&dm->vertData, CD_MVERT);
if(mvert_layer != -1) {
CustomDataLayer *cd = &dm->vertData.layers[mvert_layer];
if(cd->data == mrdm->mmd->undo_verts)
if(mrdm->mmd && cd->data == mrdm->mmd->undo_verts)
cd->flag |= CD_FLAG_NOFREE;
}
@ -1348,7 +1352,7 @@ DerivedMesh *MultiresDM_new(MultiresSubsurf *ms, DerivedMesh *orig, int numVerts
dm = &mrdm->cddm.dm;
mrdm->mmd = ms->mmd;
mrdm->me = ms->me;
mrdm->ob = ms->ob;
if(dm) {
MDisps *disps;
@ -1391,7 +1395,12 @@ DerivedMesh *MultiresDM_new(MultiresSubsurf *ms, DerivedMesh *orig, int numVerts
Mesh *MultiresDM_get_mesh(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->me;
return get_mesh(((MultiresDM*)dm)->ob);
}
Object *MultiresDM_get_object(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->ob;
}
void *MultiresDM_get_orco(DerivedMesh *dm)
@ -1428,10 +1437,11 @@ void MultiresDM_set_update(DerivedMesh *dm, void (*update)(DerivedMesh*))
ListBase *MultiresDM_get_vert_face_map(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
if(!mrdm->vert_face_map)
create_vert_face_map(&mrdm->vert_face_map, &mrdm->vert_face_map_mem, mrdm->me->mface,
mrdm->me->totvert, mrdm->me->totface);
create_vert_face_map(&mrdm->vert_face_map, &mrdm->vert_face_map_mem, me->mface,
me->totvert, me->totface);
return mrdm->vert_face_map;
}
@ -1439,10 +1449,11 @@ ListBase *MultiresDM_get_vert_face_map(DerivedMesh *dm)
ListBase *MultiresDM_get_vert_edge_map(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
if(!mrdm->vert_edge_map)
create_vert_edge_map(&mrdm->vert_edge_map, &mrdm->vert_edge_map_mem, mrdm->me->medge,
mrdm->me->totvert, mrdm->me->totedge);
create_vert_edge_map(&mrdm->vert_edge_map, &mrdm->vert_edge_map_mem, me->medge,
me->totvert, me->totedge);
return mrdm->vert_edge_map;
}
@ -1450,6 +1461,7 @@ ListBase *MultiresDM_get_vert_edge_map(DerivedMesh *dm)
int *MultiresDM_get_face_offsets(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
int i, accum = 0;
if(!mrdm->face_offsets) {
@ -1457,11 +1469,11 @@ int *MultiresDM_get_face_offsets(DerivedMesh *dm)
int area = len * len;
int t = 1 + len * 3 + area * 3, q = t + len + area;
mrdm->face_offsets = MEM_callocN(sizeof(int) * mrdm->me->totface, "mrdm face offsets");
for(i = 0; i < mrdm->me->totface; ++i) {
mrdm->face_offsets = MEM_callocN(sizeof(int) * me->totface, "mrdm face offsets");
for(i = 0; i < me->totface; ++i) {
mrdm->face_offsets[i] = accum;
accum += (mrdm->me->mface[i].v4 ? q : t);
accum += (me->mface[i].v4 ? q : t);
}
}

3
source/blender/blenkernel/intern/modifier.c
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@ -8102,14 +8102,13 @@ static DerivedMesh *multiresModifier_applyModifier(ModifierData *md, Object *ob,
int useRenderParams, int isFinalCalc)
{
MultiresModifierData *mmd = (MultiresModifierData*)md;
Mesh *me = get_mesh(ob);
DerivedMesh *final;
/* TODO: for now just skip a level1 mesh */
if(mmd->lvl == 1)
return dm;
final = multires_dm_create_from_derived(mmd, dm, me, useRenderParams, isFinalCalc);
final = multires_dm_create_from_derived(mmd, dm, ob, useRenderParams, isFinalCalc);
if(mmd->undo_signal && mmd->undo_verts && mmd->undo_verts_tot == final->getNumVerts(final)) {
int i;
MVert *dst = CDDM_get_verts(final);

19
source/blender/blenkernel/intern/multires.c
View File

@ -204,10 +204,11 @@ static void VecAddUf(float a[3], float b[3])
a[2] += b[2];
}
static void multires_subdisp(DerivedMesh *orig, Mesh *me, DerivedMesh *final, int lvl, int totlvl,
static void multires_subdisp(DerivedMesh *orig, Object *ob, DerivedMesh *final, int lvl, int totlvl,
int totsubvert, int totsubedge, int totsubface, int addverts)
{
DerivedMesh *mrdm;
Mesh *me = ob->data;
MultiresModifierData mmd_sub;
MVert *mvs = CDDM_get_verts(final);
MVert *mvd, *mvd_f1, *mvs_f1, *mvd_f3, *mvd_f4;
@ -222,7 +223,7 @@ static void multires_subdisp(DerivedMesh *orig, Mesh *me, DerivedMesh *final, in
memset(&mmd_sub, 0, sizeof(MultiresModifierData));
mmd_sub.lvl = mmd_sub.totlvl = totlvl;
mrdm = multires_dm_create_from_derived(&mmd_sub, orig, me, 0, 0);
mrdm = multires_dm_create_from_derived(&mmd_sub, orig, ob, 0, 0);
mvd = CDDM_get_verts(mrdm);
/* Need to map from ccg to mrdm */
@ -468,7 +469,7 @@ void multiresModifier_subdivide(MultiresModifierData *mmd, Object *ob, int dista
orig = CDDM_from_mesh(me, NULL);
memset(&mmd_sub, 0, sizeof(MultiresModifierData));
mmd_sub.lvl = mmd_sub.totlvl = mmd->lvl;
mrdm = multires_dm_create_from_derived(&mmd_sub, orig, me, 0, 0);
mrdm = multires_dm_create_from_derived(&mmd_sub, orig, ob, 0, 0);
totsubvert = mrdm->getNumVerts(mrdm);
totsubedge = mrdm->getNumEdges(mrdm);
totsubface = mrdm->getNumFaces(mrdm);
@ -497,7 +498,7 @@ void multiresModifier_subdivide(MultiresModifierData *mmd, Object *ob, int dista
orig = CDDM_from_mesh(me, NULL);
multires_subdisp(orig, me, final, mmd->lvl, mmd->totlvl, totsubvert, totsubedge, totsubface, 0);
multires_subdisp(orig, ob, final, mmd->lvl, mmd->totlvl, totsubvert, totsubedge, totsubface, 0);
orig->needsFree = 1;
orig->release(orig);
@ -1166,9 +1167,11 @@ static void multiresModifier_disp_run(DerivedMesh *dm, MVert *subco, int invert)
static void multiresModifier_update(DerivedMesh *dm)
{
Object *ob;
Mesh *me;
MDisps *mdisps;
ob = MultiresDM_get_object(dm);
me = MultiresDM_get_mesh(dm);
mdisps = CustomData_get_layer(&me->fdata, CD_MDISPS);
@ -1189,7 +1192,7 @@ static void multiresModifier_update(DerivedMesh *dm)
(includes older displacements but not new sculpts) */
mmd.totlvl = totlvl;
mmd.lvl = lvl;
subco_dm = multires_dm_create_from_derived(&mmd, orig, me, 0, 0);
subco_dm = multires_dm_create_from_derived(&mmd, orig, ob, 0, 0);
cur_lvl_orig_verts = CDDM_get_verts(subco_dm);
/* Subtract the original vertex cos from the new vertex cos */
@ -1199,7 +1202,7 @@ static void multiresModifier_update(DerivedMesh *dm)
final = multires_subdisp_pre(dm, totlvl - lvl, 0);
multires_subdisp(orig, me, final, lvl, totlvl, dm->getNumVerts(dm), dm->getNumEdges(dm),
multires_subdisp(orig, ob, final, lvl, totlvl, dm->getNumVerts(dm), dm->getNumEdges(dm),
dm->getNumFaces(dm), 1);
subco_dm->release(subco_dm);
@ -1226,7 +1229,7 @@ void multires_force_update(Object *ob)
}
}
struct DerivedMesh *multires_dm_create_from_derived(MultiresModifierData *mmd, DerivedMesh *dm, Mesh *me,
struct DerivedMesh *multires_dm_create_from_derived(MultiresModifierData *mmd, DerivedMesh *dm, Object *ob,
int useRenderParams, int isFinalCalc)
{
SubsurfModifierData smd;
@ -1235,7 +1238,7 @@ struct DerivedMesh *multires_dm_create_from_derived(MultiresModifierData *mmd, D
int i;
ms.mmd = mmd;
ms.me = me;
ms.ob = ob;
memset(&smd, 0, sizeof(SubsurfModifierData));
smd.levels = smd.renderLevels = mmd->lvl - 1;

2
source/blender/blenloader/intern/readfile.c
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@ -9416,7 +9416,7 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
mmd->lvl = mmd->totlvl;
orig = CDDM_from_mesh(me, NULL);
dm = multires_dm_create_from_derived(mmd, orig, me, 0, 0);
dm = multires_dm_create_from_derived(mmd, orig, ob, 0, 0);
multires_load_old(dm, me->mr);