Sybren A. Stüvel
0c38436227
Alembic is not a single file format, it can be stored in two different ways: Ogawa and HDF5. Ogawa replaced HDF5 and is smaller and much faster (4-25x) to read ([source](http://exocortex.com/blog/alembic_is_about_to_get_really_fast)). As long as Blender has had Alembic support, it has never supported the HDF5 format in any release. There is a build option `WITH_ALEMBIC_HDF5` that can be used to enable HDF5 support in your own build. This commit removes this build option and the code that it manages. In the years that I have been maintainer of Blender's Alembic code, I only remember getting a request to support HDF5 once, and that was to support very old software that has likely since then been updated to support Ogawa. Ubuntu and Fedora also seem to bundle Blender without HDF5 support. This decision was discussed on [DevTalk](https://devtalk.blender.org/t/alembic-hdf5-support-completely-remove) where someone also mentioned that there is a tool available that can convert HDF5 files to the Ogawa format.
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/*
|
|
* 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) 2016 Kévin Dietrich.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
/** \file
|
|
* \ingroup balembic
|
|
*/
|
|
|
|
#include "abc_writer_archive.h"
|
|
|
|
#include "BKE_blender_version.h"
|
|
|
|
#include "BLI_path_util.h"
|
|
#include "BLI_string.h"
|
|
|
|
#include "DNA_scene_types.h"
|
|
|
|
#ifdef WIN32
|
|
# include "utfconv.h"
|
|
#endif
|
|
|
|
#include <fstream>
|
|
|
|
using Alembic::Abc::ErrorHandler;
|
|
using Alembic::Abc::kWrapExisting;
|
|
using Alembic::Abc::OArchive;
|
|
|
|
/* This kinda duplicates CreateArchiveWithInfo, but Alembic does not seem to
|
|
* have a version supporting streams. */
|
|
static OArchive create_archive(std::ostream *ostream,
|
|
const std::string &scene_name,
|
|
double scene_fps)
|
|
{
|
|
Alembic::Abc::MetaData abc_metadata;
|
|
|
|
abc_metadata.set(Alembic::Abc::kApplicationNameKey, "Blender");
|
|
abc_metadata.set(Alembic::Abc::kUserDescriptionKey, scene_name);
|
|
abc_metadata.set("blender_version", std::string("v") + BKE_blender_version_string());
|
|
abc_metadata.set("FramesPerTimeUnit", std::to_string(scene_fps));
|
|
|
|
time_t raw_time;
|
|
time(&raw_time);
|
|
char buffer[128];
|
|
|
|
#if defined _WIN32 || defined _WIN64
|
|
ctime_s(buffer, 128, &raw_time);
|
|
#else
|
|
ctime_r(&raw_time, buffer);
|
|
#endif
|
|
|
|
const std::size_t buffer_len = strlen(buffer);
|
|
if (buffer_len > 0 && buffer[buffer_len - 1] == '\n') {
|
|
buffer[buffer_len - 1] = '\0';
|
|
}
|
|
|
|
abc_metadata.set(Alembic::Abc::kDateWrittenKey, buffer);
|
|
|
|
ErrorHandler::Policy policy = ErrorHandler::kThrowPolicy;
|
|
Alembic::AbcCoreOgawa::WriteArchive archive_writer;
|
|
return OArchive(archive_writer(ostream, abc_metadata), kWrapExisting, policy);
|
|
}
|
|
|
|
ArchiveWriter::ArchiveWriter(const char *filename,
|
|
const std::string &abc_scene_name,
|
|
const Scene *scene)
|
|
{
|
|
/* Use stream to support unicode character paths on Windows. */
|
|
#ifdef WIN32
|
|
UTF16_ENCODE(filename);
|
|
std::wstring wstr(filename_16);
|
|
m_outfile.open(wstr.c_str(), std::ios::out | std::ios::binary);
|
|
UTF16_UN_ENCODE(filename);
|
|
#else
|
|
m_outfile.open(filename, std::ios::out | std::ios::binary);
|
|
#endif
|
|
|
|
m_archive = create_archive(&m_outfile, abc_scene_name, FPS);
|
|
}
|
|
|
|
OArchive &ArchiveWriter::archive()
|
|
{
|
|
return m_archive;
|
|
}
|