Cleanup: move Alembic, AVI, Collada, and USD to `source/blender/io`

This moves the `alembic`, `avi`, `collada`, and `usd` modules into a common
`io` directory.

This also cleans up some `#include "../../{somedir}/{somefile}.h"` by
adding `../../io/{somedir}` to `CMakeLists.txt` and then just using
`#include "{somefile}.h"`.

No functional changes.

1 files changed, 98 insertions, 0 deletions

diff --git a/source/blender/io/collada/collada_internal.h b/source/blender/io/collada/collada_internal.h
new file mode 100644
index 00000000000..297ea9c0bbb
--- /dev/null
+++ b/source/blender/io/collada/collada_internal.h
@@ -0,0 +1,98 @@
+/*
+ * 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 collada
+ */
+
+#ifndef __COLLADA_INTERNAL_H__
+#define __COLLADA_INTERNAL_H__
+
+#include <string>
+#include <vector>
+#include <map>
+
+#include "COLLADAFWFileInfo.h"
+#include "Math/COLLADABUMathMatrix4.h"
+
+#include "DNA_armature_types.h"
+#include "DNA_material_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "BLI_math.h"
+#include "BLI_linklist.h"
+
+class UnitConverter {
+ private:
+  COLLADAFW::FileInfo::Unit unit;
+  COLLADAFW::FileInfo::UpAxisType up_axis;
+
+  float x_up_mat4[4][4];
+  float y_up_mat4[4][4];
+  float z_up_mat4[4][4];
+  float scale_mat4[4][4];
+
+ public:
+  enum UnitSystem {
+    None,
+    Metric,
+    Imperial,
+  };
+
+  // Initialize with Z_UP, since Blender uses right-handed, z-up
+  UnitConverter();
+
+  void read_asset(const COLLADAFW::FileInfo *asset);
+
+  void convertVector3(COLLADABU::Math::Vector3 &vec, float *v);
+
+  UnitConverter::UnitSystem isMetricSystem(void);
+
+  float getLinearMeter(void);
+
+  // TODO need also for angle conversion, time conversion...
+
+  static void dae_matrix_to_mat4_(float out[4][4], const COLLADABU::Math::Matrix4 &in);
+  static void mat4_to_dae(float out[4][4], float in[4][4]);
+  static void mat4_to_dae_double(double out[4][4], float in[4][4]);
+
+  float (&get_rotation())[4][4];
+  float (&get_scale())[4][4];
+  void calculate_scale(Scene &sce);
+};
+
+extern void clear_global_id_map();
+/** Look at documentation of translate_map */
+extern std::string translate_id(const std::string &id);
+extern std::string translate_id(const char *idString);
+
+extern std::string id_name(void *id);
+extern std::string encode_xml(std::string xml);
+
+extern std::string get_geometry_id(Object *ob);
+extern std::string get_geometry_id(Object *ob, bool use_instantiation);
+
+extern std::string get_light_id(Object *ob);
+
+extern std::string get_joint_sid(Bone *bone);
+
+extern std::string get_camera_id(Object *ob);
+extern std::string get_morph_id(Object *ob);
+
+extern std::string get_effect_id(Material *mat);
+extern std::string get_material_id(Material *mat);
+
+#endif /* __COLLADA_INTERNAL_H__ */