diff options
author | Tamito Kajiyama <rd6t-kjym@asahi-net.or.jp> | 2014-06-04 09:51:39 +0400 |
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committer | Tamito Kajiyama <rd6t-kjym@asahi-net.or.jp> | 2014-06-04 10:03:42 +0400 |
commit | 812515b623be9179e67d97b84b10df587244d38c (patch) | |
tree | 92e11d33c238075686759b0b093d3b1d516121a7 /source/blender/freestyle/intern/python/Interface1D | |
parent | 5ee55caba58371d06e6437a493a93bdec804be45 (diff) |
Freestyle: Fix for a potential infinite loop in stroke resampling by vertex count.
Changes were made in Stroke::Resample(int) in C++ to prevent a potential infinite loop
caused by an inconsistency between Stroke::_Length and the stroke length computed
based on stroke vertices. Such a stroke length inconsistency is usually caused by missing
calls of Stroke::UpdateLength() (i.e., API implementation bugs), but also may occur due
to scripting errors in user-defined style modules. This commit is meant to help script
writters to identify the latter error cases. Now Stroke.resample(int) may raise a runtime
error to signal an error condition.
Diffstat (limited to 'source/blender/freestyle/intern/python/Interface1D')
-rw-r--r-- | source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.cpp b/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.cpp index 7110eef9036..aa8c90cfd24 100644 --- a/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.cpp +++ b/source/blender/freestyle/intern/python/Interface1D/BPy_Stroke.cpp @@ -151,10 +151,16 @@ static PyObject *Stroke_resample(BPy_Stroke *self, PyObject *args, PyObject *kwd float f; if (PyArg_ParseTupleAndKeywords(args, kwds, "i", (char **)kwlist_1, &i)) { - self->s->Resample(i); + if (self->s->Resample(i) < 0) { + PyErr_SetString(PyExc_RuntimeError, "Stroke resampling (by vertex count) failed"); + return NULL; + } } else if (PyErr_Clear(), PyArg_ParseTupleAndKeywords(args, kwds, "f", (char **)kwlist_2, &f)) { - self->s->Resample(f); + if (self->s->Resample(f) < 0) { + PyErr_SetString(PyExc_RuntimeError, "Stroke resampling (by vertex interval) failed"); + return NULL; + } } else { PyErr_SetString(PyExc_TypeError, "invalid argument"); |