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, 151 insertions, 0 deletions

diff --git a/source/blender/io/collada/TransformReader.cpp b/source/blender/io/collada/TransformReader.cpp
new file mode 100644
index 00000000000..8ee31f80405
--- /dev/null
+++ b/source/blender/io/collada/TransformReader.cpp
@@ -0,0 +1,151 @@
+/*
+ * 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
+ */
+
+/* COLLADABU_ASSERT, may be able to remove later */
+#include "COLLADABUPlatform.h"
+
+#include "TransformReader.h"
+
+TransformReader::TransformReader(UnitConverter *conv) : unit_converter(conv)
+{
+  /* pass */
+}
+
+void TransformReader::get_node_mat(float mat[4][4],
+                                   COLLADAFW::Node *node,
+                                   std::map<COLLADAFW::UniqueId, Animation> *animation_map,
+                                   Object *ob)
+{
+  get_node_mat(mat, node, animation_map, ob, NULL);
+}
+
+void TransformReader::get_node_mat(float mat[4][4],
+                                   COLLADAFW::Node *node,
+                                   std::map<COLLADAFW::UniqueId, Animation> *animation_map,
+                                   Object *ob,
+                                   float parent_mat[4][4])
+{
+  float cur[4][4];
+  float copy[4][4];
+
+  unit_m4(mat);
+
+  for (unsigned int i = 0; i < node->getTransformations().getCount(); i++) {
+
+    COLLADAFW::Transformation *tm = node->getTransformations()[i];
+    COLLADAFW::Transformation::TransformationType type = tm->getTransformationType();
+
+    switch (type) {
+      case COLLADAFW::Transformation::MATRIX:
+        // When matrix AND Trans/Rot/Scale are defined for a node,
+        // then this is considered as redundant information.
+        // So if we find a Matrix we use that and return.
+        dae_matrix_to_mat4(tm, mat);
+        if (parent_mat) {
+          mul_m4_m4m4(mat, parent_mat, mat);
+        }
+        return;
+      case COLLADAFW::Transformation::TRANSLATE:
+        dae_translate_to_mat4(tm, cur);
+        break;
+      case COLLADAFW::Transformation::ROTATE:
+        dae_rotate_to_mat4(tm, cur);
+        break;
+      case COLLADAFW::Transformation::SCALE:
+        dae_scale_to_mat4(tm, cur);
+        break;
+      case COLLADAFW::Transformation::LOOKAT:
+        fprintf(stderr, "|!     LOOKAT transformations are not supported yet.\n");
+        break;
+      case COLLADAFW::Transformation::SKEW:
+        fprintf(stderr, "|!     SKEW transformations are not supported yet.\n");
+        break;
+    }
+
+    copy_m4_m4(copy, mat);
+    mul_m4_m4m4(mat, copy, cur);
+
+    if (animation_map) {
+      // AnimationList that drives this Transformation
+      const COLLADAFW::UniqueId &anim_list_id = tm->getAnimationList();
+
+      // store this so later we can link animation data with ob
+      Animation anim = {ob, node, tm};
+      (*animation_map)[anim_list_id] = anim;
+    }
+  }
+
+  if (parent_mat) {
+    mul_m4_m4m4(mat, parent_mat, mat);
+  }
+}
+
+void TransformReader::dae_rotate_to_mat4(COLLADAFW::Transformation *tm, float m[4][4])
+{
+  COLLADAFW::Rotate *ro = (COLLADAFW::Rotate *)tm;
+  COLLADABU::Math::Vector3 &axis = ro->getRotationAxis();
+  const float angle = (float)DEG2RAD(ro->getRotationAngle());
+  const float ax[] = {(float)axis[0], (float)axis[1], (float)axis[2]};
+  // float quat[4];
+  // axis_angle_to_quat(quat, axis, angle);
+  // quat_to_mat4(m, quat);
+  axis_angle_to_mat4(m, ax, angle);
+}
+
+void TransformReader::dae_translate_to_mat4(COLLADAFW::Transformation *tm, float m[4][4])
+{
+  COLLADAFW::Translate *tra = (COLLADAFW::Translate *)tm;
+  COLLADABU::Math::Vector3 &t = tra->getTranslation();
+
+  unit_m4(m);
+
+  m[3][0] = (float)t[0];
+  m[3][1] = (float)t[1];
+  m[3][2] = (float)t[2];
+}
+
+void TransformReader::dae_scale_to_mat4(COLLADAFW::Transformation *tm, float m[4][4])
+{
+  COLLADABU::Math::Vector3 &s = ((COLLADAFW::Scale *)tm)->getScale();
+  float size[3] = {(float)s[0], (float)s[1], (float)s[2]};
+  size_to_mat4(m, size);
+}
+
+void TransformReader::dae_matrix_to_mat4(COLLADAFW::Transformation *tm, float m[4][4])
+{
+  unit_converter->dae_matrix_to_mat4_(m, ((COLLADAFW::Matrix *)tm)->getMatrix());
+}
+
+void TransformReader::dae_translate_to_v3(COLLADAFW::Transformation *tm, float v[3])
+{
+  dae_vector3_to_v3(((COLLADAFW::Translate *)tm)->getTranslation(), v);
+}
+
+void TransformReader::dae_scale_to_v3(COLLADAFW::Transformation *tm, float v[3])
+{
+  dae_vector3_to_v3(((COLLADAFW::Scale *)tm)->getScale(), v);
+}
+
+void TransformReader::dae_vector3_to_v3(const COLLADABU::Math::Vector3 &v3, float v[3])
+{
+  v[0] = v3.x;
+  v[1] = v3.y;
+  v[2] = v3.z;
+}