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Fix crash when having multiple text objects sharing the same curve datablock

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Issue was caused by BKE_vfont_to_curve() modifying curve->nurbs list which
gave threading issues.

Now added BKE_vfont_to_curve_nubase() which operates on a given nurbs list
base which is local in do_makeDispListCurveTypes().

By the looks of it it wouldn't give speed regression because previously it
also was creating nurbs for every font object sharing the same curve data.
This commit is contained in:
Sergey Sharybin
2014-01-05 17:04:52 +06:00
parent ac3d33af73
commit a2bf25e8ff
3 changed files with 29 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
source/blender/blenkernel/BKE_font.h
View File

@@ -83,6 +83,9 @@ void BKE_vfont_free(struct VFont *sc);
struct VFont *BKE_vfont_builtin_get(void);
struct VFont *BKE_vfont_load(struct Main *bmain, const char *name);
bool BKE_vfont_to_curve_nubase(struct Main *bmain, struct Scene *scene, struct Object *ob,
struct ListBase *nubase, int mode, struct CharTrans **r_chartransdata);
bool BKE_vfont_to_curve(struct Main *bmain, struct Scene *scene, struct Object *ob, int mode,
struct CharTrans **r_chartransdata);

10
source/blender/blenkernel/intern/displist.c
View File

@@ -1374,10 +1374,12 @@ static void do_makeDispListCurveTypes(Scene *scene, Object *ob, ListBase *dispba
if (ob->curve_cache->path) free_path(ob->curve_cache->path);
ob->curve_cache->path = NULL;
if (ob->type == OB_FONT)
BKE_vfont_to_curve(G.main, scene, ob, FO_EDIT, NULL);
BKE_nurbList_duplicate(&nubase, BKE_curve_nurbs_get(cu));
if (ob->type == OB_FONT) {
BKE_vfont_to_curve_nubase(G.main, scene, ob, &nubase, FO_EDIT, NULL);
}
else {
BKE_nurbList_duplicate(&nubase, BKE_curve_nurbs_get(cu));
}
if (!forOrco)
curve_calc_modifiers_pre(scene, ob, &nubase, forRender, renderResolution);

29
source/blender/blenkernel/intern/font.c
View File

@@ -293,7 +293,7 @@ static VChar *find_vfont_char(VFontData *vfd, unsigned int character)
return BLI_ghash_lookup(vfd->characters, SET_UINT_IN_POINTER(character));
}
static void build_underline(Curve *cu, float x1, float y1, float x2, float y2, int charidx, short mat_nr)
static void build_underline(Curve *cu, ListBase *nubase, float x1, float y1, float x2, float y2, int charidx, short mat_nr)
{
Nurb *nu2;
BPoint *bp;
@@ -324,11 +324,11 @@ static void build_underline(Curve *cu, float x1, float y1, float x2, float y2, i
copy_v4_fl4(bp[3].vec, x1, y2, 0.0f, 1.0f);
nu2->bp = bp;
BLI_addtail(&(cu->nurb), nu2);
BLI_addtail(nubase, nu2);
}
static void buildchar(Main *bmain, Curve *cu, unsigned int character, CharInfo *info,
static void buildchar(Main *bmain, Curve *cu, ListBase *nubase, unsigned int character, CharInfo *info,
float ofsx, float ofsy, float rot, int charidx)
{
BezTriple *bezt1, *bezt2;
@@ -450,7 +450,7 @@ static void buildchar(Main *bmain, Curve *cu, unsigned int character, CharInfo *
bezt2++;
}
BLI_addtail(&(cu->nurb), nu2);
BLI_addtail(nubase, nu2);
}
nu1 = nu1->next;
@@ -495,8 +495,8 @@ static float char_width(Curve *cu, VChar *che, CharInfo *info)
}
}
bool BKE_vfont_to_curve(Main *bmain, Scene *scene, Object *ob, int mode,
struct CharTrans **r_chartransdata)
bool BKE_vfont_to_curve_nubase(Main *bmain, Scene *scene, Object *ob, ListBase *nubase,
int mode, struct CharTrans **r_chartransdata)
{
Curve *cu = ob->data;
EditFont *ef = cu->editfont;
@@ -1020,7 +1020,7 @@ makebreak:
if (mode == FO_EDIT) {
/* make nurbdata */
BKE_nurbList_free(&cu->nurb);
BKE_nurbList_free(nubase);
ct = chartransdata;
for (i = 0; i < slen; i++) {
@@ -1037,7 +1037,7 @@ makebreak:
}
/* We do not want to see any character for \n or \r */
if (cha != '\n' && cha != '\r')
buildchar(bmain, cu, cha, info, ct->xof, ct->yof, ct->rot, i);
buildchar(bmain, cu, nubase, cha, info, ct->xof, ct->yof, ct->rot, i);
if ((info->flag & CU_CHINFO_UNDERLINE) && (cu->textoncurve == NULL) && (cha != '\n') && (cha != '\r')) {
float ulwidth, uloverlap = 0.0f;
@@ -1054,7 +1054,8 @@ makebreak:
twidth = char_width(cu, che, info);
ulwidth = cu->fsize * ((twidth * (1.0f + (info->kern / 40.0f))) + uloverlap);
build_underline(cu, ct->xof * cu->fsize, ct->yof * cu->fsize + (cu->ulpos - 0.05f) * cu->fsize,
build_underline(cu, nubase,
ct->xof * cu->fsize, ct->yof * cu->fsize + (cu->ulpos - 0.05f) * cu->fsize,
ct->xof * cu->fsize + ulwidth,
ct->yof * cu->fsize + (cu->ulpos - 0.05f) * cu->fsize - cu->ulheight * cu->fsize,
i, info->mat_nr);
@@ -1081,3 +1082,13 @@ finally:
return ok;
}
bool BKE_vfont_to_curve(Main *bmain, Scene *scene, Object *ob, int mode,
struct CharTrans **r_chartransdata)
{
Curve *cu = (Curve *) ob->data;
BLI_assert(ob->type == OB_FONT);
return BKE_vfont_to_curve_nubase(bmain, scene, ob, &cu->nurb, mode, r_chartransdata);
}