diff options
Diffstat (limited to 'indra/llprimitive/llmodel.cpp')
| -rwxr-xr-x | indra/llprimitive/llmodel.cpp | 197 |
1 files changed, 181 insertions, 16 deletions
diff --git a/indra/llprimitive/llmodel.cpp b/indra/llprimitive/llmodel.cpp index 28ed051c55..e236f98fe6 100755 --- a/indra/llprimitive/llmodel.cpp +++ b/indra/llprimitive/llmodel.cpp @@ -186,27 +186,73 @@ LLModel::EModelStatus load_face_from_dom_triangles(std::vector<LLVolumeFace>& fa LLVolumeFace::VertexMapData::PointMap point_map; - for (U32 i = 0; i < idx.getCount(); i += idx_stride) + U32 index_count = idx.getCount(); + U32 vertex_count = pos_source ? v.getCount() : 0; + U32 tc_count = tc_source ? tc.getCount() : 0; + U32 norm_count = norm_source ? n.getCount() : 0; + + for (U32 i = 0; i < index_count; i += idx_stride) { LLVolumeFace::VertexData cv; if (pos_source) { + // guard against model data specifiying out of range indices or verts + // + if (((i + pos_offset) > index_count) + || ((idx[i+pos_offset]*3+2) > vertex_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.setPosition(LLVector4a(v[idx[i+pos_offset]*3+0], v[idx[i+pos_offset]*3+1], v[idx[i+pos_offset]*3+2])); + + if (!cv.getPosition().isFinite3()) + { + return LLModel::BAD_ELEMENT; + } } if (tc_source) { + // guard against model data specifiying out of range indices or tcs + // + if (((i + tc_offset) > index_count) + || ((idx[i+pos_offset]*2+1) > tc_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.mTexCoord.setVec(tc[idx[i+tc_offset]*2+0], tc[idx[i+tc_offset]*2+1]); + + if (!cv.mTexCoord.isFinite()) + { + llwarns << "Found NaN while loading tex coords from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } } if (norm_source) { + // guard against model data specifiying out of range indices or norms + // + if (((i + norm_offset) > index_count) + || ((idx[i+norm_offset]*3+2) > norm_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.setNormal(LLVector4a(n[idx[i+norm_offset]*3+0], n[idx[i+norm_offset]*3+1], n[idx[i+norm_offset]*3+2])); + + if (!cv.getNormal().isFinite3()) + { + llwarns << "Found NaN while loading normals from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } } BOOL found = FALSE; @@ -261,13 +307,13 @@ LLModel::EModelStatus load_face_from_dom_triangles(std::vector<LLVolumeFace>& fa LLVolumeFace& new_face = *face_list.rbegin(); if (!norm_source) { - ll_aligned_free_16(new_face.mNormals); + //ll_aligned_free_16(new_face.mNormals); new_face.mNormals = NULL; } if (!tc_source) { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } @@ -292,13 +338,13 @@ LLModel::EModelStatus load_face_from_dom_triangles(std::vector<LLVolumeFace>& fa LLVolumeFace& new_face = *face_list.rbegin(); if (!norm_source) { - ll_aligned_free_16(new_face.mNormals); + //ll_aligned_free_16(new_face.mNormals); new_face.mNormals = NULL; } if (!tc_source) { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } } @@ -364,6 +410,11 @@ LLModel::EModelStatus load_face_from_dom_polylist(std::vector<LLVolumeFace>& fac LLVolumeFace::VertexMapData::PointMap point_map; + U32 index_count = idx.getCount(); + U32 vertex_count = pos_source ? v.getCount() : 0; + U32 tc_count = tc_source ? tc.getCount() : 0; + U32 norm_count = norm_source ? n.getCount() : 0; + U32 cur_idx = 0; for (U32 i = 0; i < vcount.getCount(); ++i) { //for each polygon @@ -376,22 +427,65 @@ LLModel::EModelStatus load_face_from_dom_polylist(std::vector<LLVolumeFace>& fac if (pos_source) { + // guard against model data specifiying out of range indices or verts + // + if (((i + pos_offset) > index_count) + || ((idx[i+pos_offset]*3+2) > vertex_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.getPosition().set(v[idx[cur_idx+pos_offset]*3+0], v[idx[cur_idx+pos_offset]*3+1], v[idx[cur_idx+pos_offset]*3+2]); + + if (!cv.getPosition().isFinite3()) + { + llwarns << "Found NaN while loading positions from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } + } if (tc_source) { + // guard against model data specifiying out of range indices or tcs + // + if (((i + pos_offset) > index_count) + || ((idx[cur_idx+tc_offset]*2+1) > tc_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.mTexCoord.setVec(tc[idx[cur_idx+tc_offset]*2+0], tc[idx[cur_idx+tc_offset]*2+1]); + + if (!cv.mTexCoord.isFinite()) + { + llwarns << "Found NaN while loading tex coords from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } } if (norm_source) { + // guard against model data specifiying out of range indices or norms + // + if (((i + pos_offset) > index_count) + || ((idx[cur_idx+norm_offset]*3+2) > norm_count)) + { + return LLModel::BAD_ELEMENT; + } + cv.getNormal().set(n[idx[cur_idx+norm_offset]*3+0], n[idx[cur_idx+norm_offset]*3+1], n[idx[cur_idx+norm_offset]*3+2]); + + if (!cv.getNormal().isFinite3()) + { + llwarns << "Found NaN while loading normals from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } } cur_idx += idx_stride; @@ -480,13 +574,13 @@ LLModel::EModelStatus load_face_from_dom_polylist(std::vector<LLVolumeFace>& fac LLVolumeFace& new_face = *face_list.rbegin(); if (!norm_source) { - ll_aligned_free_16(new_face.mNormals); + //ll_aligned_free_16(new_face.mNormals); new_face.mNormals = NULL; } if (!tc_source) { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } @@ -514,13 +608,13 @@ LLModel::EModelStatus load_face_from_dom_polylist(std::vector<LLVolumeFace>& fac LLVolumeFace& new_face = *face_list.rbegin(); if (!norm_source) { - ll_aligned_free_16(new_face.mNormals); + //ll_aligned_free_16(new_face.mNormals); new_face.mNormals = NULL; } if (!tc_source) { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } } @@ -628,25 +722,59 @@ LLModel::EModelStatus load_face_from_dom_polygons(std::vector<LLVolumeFace>& fac if (v) { U32 v_idx = idx[j*stride+v_offset]*3; + v_idx = llclamp(v_idx, (U32) 0, (U32) v->getCount()); vert.getPosition().set(v->get(v_idx), v->get(v_idx+1), v->get(v_idx+2)); + + if (!vert.getPosition().isFinite3()) + { + llwarns << "Found NaN while loading position data from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } } - if (n) + //bounds check n and t lookups because some FBX to DAE converters + //use negative indices and empty arrays to indicate data does not exist + //for a particular channel + if (n && n->getCount() > 0) { U32 n_idx = idx[j*stride+n_offset]*3; + n_idx = llclamp(n_idx, (U32) 0, (U32) n->getCount()); vert.getNormal().set(n->get(n_idx), n->get(n_idx+1), n->get(n_idx+2)); + + if (!vert.getNormal().isFinite3()) + { + llwarns << "Found NaN while loading normals from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } + } + else + { + vert.getNormal().clear(); } + - if (t) + if (t && t->getCount() > 0) { U32 t_idx = idx[j*stride+t_offset]*2; + t_idx = llclamp(t_idx, (U32) 0, (U32) t->getCount()); vert.mTexCoord.setVec(t->get(t_idx), t->get(t_idx+1)); + + if (!vert.mTexCoord.isFinite()) + { + llwarns << "Found NaN while loading tex coords from DAE-Model, invalid model." << llendl; + return LLModel::BAD_ELEMENT; + } + } + else + { + vert.mTexCoord.clear(); } + verts.push_back(vert); } @@ -714,13 +842,13 @@ LLModel::EModelStatus load_face_from_dom_polygons(std::vector<LLVolumeFace>& fac LLVolumeFace& new_face = *face_list.rbegin(); if (!n) { - ll_aligned_free_16(new_face.mNormals); + //ll_aligned_free_16(new_face.mNormals); new_face.mNormals = NULL; } if (!t) { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } } @@ -994,6 +1122,43 @@ void LLModel::getNormalizedScaleTranslation(LLVector3& scale_out, LLVector3& tra translation_out = mNormalizedTranslation; } +LLVector3 LLModel::getTransformedCenter(const LLMatrix4& mat) +{ + LLVector3 ret; + + if (!mVolumeFaces.empty()) + { + LLMatrix4a m; + m.loadu(mat); + + LLVector4a minv,maxv; + + LLVector4a t; + m.affineTransform(mVolumeFaces[0].mPositions[0], t); + minv = maxv = t; + + for (S32 i = 0; i < mVolumeFaces.size(); ++i) + { + LLVolumeFace& face = mVolumeFaces[i]; + + for (U32 j = 0; j < face.mNumVertices; ++j) + { + m.affineTransform(face.mPositions[j],t); + update_min_max(minv, maxv, t); + } + } + + minv.add(maxv); + minv.mul(0.5f); + + ret.set(minv.getF32ptr()); + } + + return ret; +} + + + void LLModel::setNumVolumeFaces(S32 count) { mVolumeFaces.resize(count); @@ -1020,7 +1185,7 @@ void LLModel::setVolumeFaceData( } else { - ll_aligned_free_16(face.mNormals); + //ll_aligned_free_16(face.mNormals); face.mNormals = NULL; } @@ -1031,7 +1196,7 @@ void LLModel::setVolumeFaceData( } else { - ll_aligned_free_16(face.mTexCoords); + //ll_aligned_free_16(face.mTexCoords); face.mTexCoords = NULL; } @@ -1230,7 +1395,7 @@ void LLModel::generateNormals(F32 angle_cutoff) } else { - ll_aligned_free_16(new_face.mTexCoords); + //ll_aligned_free_16(new_face.mTexCoords); new_face.mTexCoords = NULL; } |