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Merge pull request #181 from vincentdm05/missing-data

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Produce an error and return when indices and data dont match.
This commit is contained in:
Syoyo Fujita
2018-08-17 16:12:36 +09:00
committed by GitHub
parent cd65de860b 68350e2fc7
commit 826a892d0b
1 changed files with 33 additions and 0 deletions
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33
tiny_obj_loader.h
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@@ -1789,6 +1789,10 @@ bool LoadObj(attrib_t *attrib, std::vector<shape_t> *shapes,
unsigned int current_smoothing_id =
0; // Initial value. 0 means no smoothing.
int greatest_v_idx = -1;
int greatest_vn_idx = -1;
int greatest_vt_idx = -1;
shape_t shape;
size_t line_num = 0;
@@ -1907,6 +1911,10 @@ bool LoadObj(attrib_t *attrib, std::vector<shape_t> *shapes,
return false;
}
greatest_v_idx = greatest_v_idx > vi.v_idx ? greatest_v_idx : vi.v_idx;
greatest_vn_idx = greatest_vn_idx > vi.vn_idx ? greatest_vn_idx : vi.vn_idx;
greatest_vt_idx = greatest_vt_idx > vi.vt_idx ? greatest_vt_idx : vi.vt_idx;
face.vertex_indices.push_back(vi);
size_t n = strspn(token, " \t\r");
token += n;
@@ -2153,6 +2161,31 @@ bool LoadObj(attrib_t *attrib, std::vector<shape_t> *shapes,
// Ignore unknown command.
}
if (greatest_v_idx >= static_cast<int>(v.size() / 3))
{
if (err) {
std::stringstream ss;
ss << "WARN: Vertex indices out of bounds.\n" << std::endl;
(*err) += ss.str();
}
}
if (greatest_vn_idx >= static_cast<int>(vn.size() / 3))
{
if (err) {
std::stringstream ss;
ss << "WARN: Vertex normal indices out of bounds.\n" << std::endl;
(*err) += ss.str();
}
}
if (greatest_vt_idx >= static_cast<int>(vt.size() / 2))
{
if (err) {
std::stringstream ss;
ss << "WARN: Vertex texcoord indices out of bounds.\n" << std::endl;
(*err) += ss.str();
}
}
bool ret = exportGroupsToShape(&shape, faceGroup, lineGroup, tags, material,
name, triangulate, v);
// exportGroupsToShape return false when `usemtl` is called in the last