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Diffstat (limited to 'source/blender/alembic/intern/abc_reader_object.h')
| -rw-r--r-- | source/blender/alembic/intern/abc_reader_object.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/source/blender/alembic/intern/abc_reader_object.h b/source/blender/alembic/intern/abc_reader_object.h new file mode 100644 index 00000000000..94923df2df9 --- /dev/null +++ b/source/blender/alembic/intern/abc_reader_object.h @@ -0,0 +1,171 @@ +/* + * 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. + */ + +/** \file + * \ingroup balembic + */ + +#ifndef __ABC_READER_OBJECT_H__ +#define __ABC_READER_OBJECT_H__ + +#include <Alembic/Abc/All.h> +#include <Alembic/AbcGeom/All.h> + +extern "C" { +#include "DNA_ID.h" +} + +struct CacheFile; +struct Main; +struct Mesh; +struct Object; + +using Alembic::AbcCoreAbstract::chrono_t; + +struct ImportSettings { + bool do_convert_mat; + float conversion_mat[4][4]; + + int from_up; + int from_forward; + float scale; + bool is_sequence; + bool set_frame_range; + + /* Length and frame offset of file sequences. */ + int sequence_len; + int sequence_offset; + + /* From MeshSeqCacheModifierData.read_flag */ + int read_flag; + + bool validate_meshes; + + CacheFile *cache_file; + + ImportSettings() + : do_convert_mat(false), + from_up(0), + from_forward(0), + scale(1.0f), + is_sequence(false), + set_frame_range(false), + sequence_len(1), + sequence_offset(0), + read_flag(0), + validate_meshes(false), + cache_file(NULL) + { + } +}; + +template<typename Schema> static bool has_animations(Schema &schema, ImportSettings *settings) +{ + return settings->is_sequence || !schema.isConstant(); +} + +class AbcObjectReader { + protected: + std::string m_name; + std::string m_object_name; + std::string m_data_name; + Object *m_object; + Alembic::Abc::IObject m_iobject; + + ImportSettings *m_settings; + + chrono_t m_min_time; + chrono_t m_max_time; + + /* Use reference counting since the same reader may be used by multiple + * modifiers and/or constraints. */ + int m_refcount; + + bool m_inherits_xform; + + public: + AbcObjectReader *parent_reader; + + public: + explicit AbcObjectReader(const Alembic::Abc::IObject &object, ImportSettings &settings); + + virtual ~AbcObjectReader(); + + const Alembic::Abc::IObject &iobject() const; + + typedef std::vector<AbcObjectReader *> ptr_vector; + + /** + * Returns the transform of this object. This can be the Alembic object + * itself (in case of an Empty) or it can be the parent Alembic object. + */ + virtual Alembic::AbcGeom::IXform xform(); + + Object *object() const; + void object(Object *ob); + + const std::string &name() const + { + return m_name; + } + const std::string &object_name() const + { + return m_object_name; + } + const std::string &data_name() const + { + return m_data_name; + } + bool inherits_xform() const + { + return m_inherits_xform; + } + + virtual bool valid() const = 0; + virtual bool accepts_object_type(const Alembic::AbcCoreAbstract::ObjectHeader &alembic_header, + const Object *const ob, + const char **err_str) const = 0; + + virtual void readObjectData(Main *bmain, const Alembic::Abc::ISampleSelector &sample_sel) = 0; + + virtual struct Mesh *read_mesh(struct Mesh *mesh, + const Alembic::Abc::ISampleSelector &sample_sel, + int read_flag, + const char **err_str); + virtual bool topology_changed(Mesh *existing_mesh, + const Alembic::Abc::ISampleSelector &sample_sel); + + /** Reads the object matrix and sets up an object transform if animated. */ + void setupObjectTransform(const float time); + + void addCacheModifier(); + + chrono_t minTime() const; + chrono_t maxTime() const; + + int refcount() const; + void incref(); + void decref(); + + void read_matrix(float r_mat[4][4], const float time, const float scale, bool &is_constant); + + protected: + void determine_inherits_xform(); +}; + +Imath::M44d get_matrix(const Alembic::AbcGeom::IXformSchema &schema, const float time); + +#endif /* __ABC_READER_OBJECT_H__ */ |