diff options
Diffstat (limited to 'intern/openvdb/intern/openvdb_reader.cc')
| -rw-r--r-- | intern/openvdb/intern/openvdb_reader.cc | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/intern/openvdb/intern/openvdb_reader.cc b/intern/openvdb/intern/openvdb_reader.cc new file mode 100644 index 00000000000..8b15b81710d --- /dev/null +++ b/intern/openvdb/intern/openvdb_reader.cc @@ -0,0 +1,136 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2015 Blender Foundation. + * All rights reserved. + * + * Contributor(s): Kevin Dietrich + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include "openvdb_reader.h" +#include "openvdb_util.h" + +OpenVDBReader::OpenVDBReader() + : m_meta_map(new openvdb::MetaMap) + , m_file(NULL) +{ + /* Although it is safe, it may not be good to have this here, could be done + * once instead of everytime we read a file. */ + openvdb::initialize(); +} + +OpenVDBReader::~OpenVDBReader() +{ + cleanupFile(); +} + +void OpenVDBReader::open(const openvdb::Name &filename) +{ + cleanupFile(); + + try { + m_file = new openvdb::io::File(filename); + m_file->setCopyMaxBytes(0); + m_file->open(); + + m_meta_map = m_file->getMetadata(); + } + /* Mostly to catch exceptions related to Blosc not being supported. */ + catch (const openvdb::IoError &e) { + std::cerr << e.what() << '\n'; + cleanupFile(); + } +} + +void OpenVDBReader::floatMeta(const openvdb::Name &name, float &value) const +{ + try { + value = m_meta_map->metaValue<float>(name); + } + CATCH_KEYERROR; +} + +void OpenVDBReader::intMeta(const openvdb::Name &name, int &value) const +{ + try { + value = m_meta_map->metaValue<int>(name); + } + CATCH_KEYERROR; +} + +void OpenVDBReader::vec3sMeta(const openvdb::Name &name, float value[3]) const +{ + try { + openvdb::Vec3s meta_val = m_meta_map->metaValue<openvdb::Vec3s>(name); + + value[0] = meta_val.x(); + value[1] = meta_val.y(); + value[2] = meta_val.z(); + } + CATCH_KEYERROR; +} + +void OpenVDBReader::vec3IMeta(const openvdb::Name &name, int value[3]) const +{ + try { + openvdb::Vec3i meta_val = m_meta_map->metaValue<openvdb::Vec3i>(name); + + value[0] = meta_val.x(); + value[1] = meta_val.y(); + value[2] = meta_val.z(); + } + CATCH_KEYERROR; +} + +void OpenVDBReader::mat4sMeta(const openvdb::Name &name, float value[4][4]) const +{ + try { + openvdb::Mat4s meta_val = m_meta_map->metaValue<openvdb::Mat4s>(name); + + for (int i = 0; i < 4; ++i) { + for (int j = 0; j < 4; ++j) { + value[i][j] = meta_val[i][j]; + } + } + } + CATCH_KEYERROR; +} + +bool OpenVDBReader::hasGrid(const openvdb::Name &name) const +{ + return m_file->hasGrid(name); +} + +openvdb::GridBase::Ptr OpenVDBReader::getGrid(const openvdb::Name &name) const +{ + return m_file->readGrid(name); +} + +size_t OpenVDBReader::numGrids() const +{ + return m_file->getGrids()->size(); +} + +void OpenVDBReader::cleanupFile() +{ + if (m_file) { + m_file->close(); + delete m_file; + } +} |