Revision: 36929
          
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=36929
Author:   phabtar
Date:     2011-05-26 17:07:38 +0000 (Thu, 26 May 2011)
Log Message:
-----------
AnimationExporter class refactoring.

Exported AnimationExporter class to a separate set of files.

Modified Paths:
--------------
    branches/soc-2011-pepper/source/blender/collada/CMakeLists.txt
    branches/soc-2011-pepper/source/blender/collada/DocumentExporter.cpp

Added Paths:
-----------
    branches/soc-2011-pepper/source/blender/collada/AnimationExporter.cpp
    branches/soc-2011-pepper/source/blender/collada/AnimationExporter.h

Added: branches/soc-2011-pepper/source/blender/collada/AnimationExporter.cpp
===================================================================
--- branches/soc-2011-pepper/source/blender/collada/AnimationExporter.cpp       
                        (rev 0)
+++ branches/soc-2011-pepper/source/blender/collada/AnimationExporter.cpp       
2011-05-26 17:07:38 UTC (rev 36929)
@@ -0,0 +1,660 @@
+/*
+ * $Id: DocumentExporter.cpp 36898 2011-05-25 17:14:31Z phabtar $
+ *
+ * ***** 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.
+ *
+ * Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov, Jan Diederich, Tod 
Liverseed.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include "GeometryExporter.h"
+#include "AnimationExporter.h"
+
+template<class Functor>
+void forEachObjectInScene(Scene *sce, Functor &f)
+{
+       Base *base= (Base*) sce->base.first;
+       while(base) {
+               Object *ob = base->object;
+                       
+               f(ob);
+
+               base= base->next;
+       }
+}
+
+void AnimationExporter::exportAnimations(Scene *sce)
+       {
+               if(hasAnimations(sce)) {
+                       this->scene = sce;
+
+                       openLibrary();
+
+                       forEachObjectInScene(sce, *this);
+
+                       closeLibrary();
+               }
+       }
+
+       // called for each exported object
+       void AnimationExporter::operator() (Object *ob) 
+       {
+               if (!ob->adt || !ob->adt->action) return;
+               
+               FCurve *fcu = (FCurve*)ob->adt->action->curves.first;
+               
+               if (ob->type == OB_ARMATURE) {
+                       if (!ob->data) return;
+
+                       bArmature *arm = (bArmature*)ob->data;
+                       for (Bone *bone = (Bone*)arm->bonebase.first; bone; 
bone = bone->next)
+                               write_bone_animation(ob, bone);
+               }
+               else {
+                       while (fcu) {
+                               // TODO "rotation_quaternion" is also possible 
for objects (although euler is default)
+                               if ((!strcmp(fcu->rna_path, "location") || 
!strcmp(fcu->rna_path, "scale")) ||
+                                       (!strcmp(fcu->rna_path, 
"rotation_euler") && ob->rotmode == ROT_MODE_EUL))
+                                       dae_animation(fcu, id_name(ob));
+
+                               fcu = fcu->next;
+                       }
+               }
+       }
+
+       void AnimationExporter::dae_animation(FCurve *fcu, std::string ob_name)
+       {
+               const char *axis_names[] = {"X", "Y", "Z"};
+               const char *axis_name = NULL;
+               char anim_id[200];
+               
+               if (fcu->array_index < 3)
+                       axis_name = axis_names[fcu->array_index];
+
+               BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s_%s", 
(char*)translate_id(ob_name).c_str(),
+                                        fcu->rna_path, 
axis_names[fcu->array_index]);
+
+               // check rna_path is one of: rotation, scale, location
+
+               openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
+
+               // create input source
+               std::string input_id = 
create_source_from_fcurve(COLLADASW::InputSemantic::INPUT, fcu, anim_id, 
axis_name);
+
+               // create output source
+               std::string output_id = 
create_source_from_fcurve(COLLADASW::InputSemantic::OUTPUT, fcu, anim_id, 
axis_name);
+
+               // create interpolations source
+               std::string interpolation_id = 
create_interpolation_source(fcu->totvert, anim_id, axis_name);
+
+               std::string sampler_id = std::string(anim_id) + 
SAMPLER_ID_SUFFIX;
+               COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
+               std::string empty;
+               sampler.addInput(COLLADASW::InputSemantic::INPUT, 
COLLADABU::URI(empty, input_id));
+               sampler.addInput(COLLADASW::InputSemantic::OUTPUT, 
COLLADABU::URI(empty, output_id));
+
+               // this input is required
+               sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, 
COLLADABU::URI(empty, interpolation_id));
+
+               addSampler(sampler);
+
+               std::string target = translate_id(ob_name)
+                       + "/" + get_transform_sid(fcu->rna_path, -1, axis_name, 
true);
+               addChannel(COLLADABU::URI(empty, sampler_id), target);
+
+               closeAnimation();
+       }
+
+       void AnimationExporter::write_bone_animation(Object *ob_arm, Bone *bone)
+       {
+               if (!ob_arm->adt)
+                       return;
+        
+               //write bone animations for 3 transform types
+               //i=0 --> rotations
+               //i=1 --> scale
+               //i=2 --> location
+               for (int i = 0; i < 3; i++)
+                       sample_and_write_bone_animation(ob_arm, bone, i);
+        
+               for (Bone *child = (Bone*)bone->childbase.first; child; child = 
child->next)
+                       write_bone_animation(ob_arm, child);
+       }
+
+       void AnimationExporter::sample_and_write_bone_animation(Object *ob_arm, 
Bone *bone, int transform_type)
+       {
+               bArmature *arm = (bArmature*)ob_arm->data;
+               int flag = arm->flag;
+               std::vector<float> fra;
+               char prefix[256];
+
+               BLI_snprintf(prefix, sizeof(prefix), "pose.bones[\"%s\"]", 
bone->name);
+
+               bPoseChannel *pchan = get_pose_channel(ob_arm->pose, 
bone->name);
+               if (!pchan)
+                       return;
+
+               switch (transform_type) {
+               case 0:
+                       find_rotation_frames(ob_arm, fra, prefix, 
pchan->rotmode);
+                       break;
+               case 1:
+                       find_frames(ob_arm, fra, prefix, "scale");
+                       break;
+               case 2:
+                       find_frames(ob_arm, fra, prefix, "location");
+                       break;
+               default:
+                       return;
+               }
+
+               // exit rest position
+               if (flag & ARM_RESTPOS) {
+                       arm->flag &= ~ARM_RESTPOS;
+                       where_is_pose(scene, ob_arm);
+               }
+
+               if (fra.size()) {
+                       float *v = (float*)MEM_callocN(sizeof(float) * 3 * 
fra.size(), "temp. anim frames");
+                       sample_animation(v, fra, transform_type, bone, ob_arm);
+
+                       if (transform_type == 0) {
+                               // write x, y, z curves separately if it is 
rotation
+                               float *c = (float*)MEM_callocN(sizeof(float) * 
fra.size(), "temp. anim frames");
+                               for (int i = 0; i < 3; i++) {
+                                       for (unsigned int j = 0; j < 
fra.size(); j++)
+                                               c[j] = v[j * 3 + i];
+
+                                       dae_bone_animation(fra, c, 
transform_type, i, id_name(ob_arm), bone->name);
+                               }
+                               MEM_freeN(c);
+                       }
+                       else {
+                               // write xyz at once if it is location or scale
+                               dae_bone_animation(fra, v, transform_type, -1, 
id_name(ob_arm), bone->name);
+                       }
+
+                       MEM_freeN(v);
+               }
+
+               // restore restpos
+               if (flag & ARM_RESTPOS) 
+                       arm->flag = flag;
+               where_is_pose(scene, ob_arm);
+       }
+
+       void AnimationExporter::sample_animation(float *v, std::vector<float> 
&frames, int type, Bone *bone, Object *ob_arm)
+       {
+               bPoseChannel *pchan, *parchan = NULL;
+               bPose *pose = ob_arm->pose;
+
+               pchan = get_pose_channel(pose, bone->name);
+
+               if (!pchan)
+                       return;
+
+               parchan = pchan->parent;
+
+               enable_fcurves(ob_arm->adt->action, bone->name);
+
+               std::vector<float>::iterator it;
+               for (it = frames.begin(); it != frames.end(); it++) {
+                       float mat[4][4], ipar[4][4];
+
+                       float ctime = bsystem_time(scene, ob_arm, *it, 0.0f);
+
+                       BKE_animsys_evaluate_animdata(&ob_arm->id, ob_arm->adt, 
*it, ADT_RECALC_ANIM);
+                       where_is_pose_bone(scene, ob_arm, pchan, ctime, 1);
+
+                       // compute bone local mat
+                       if (bone->parent) {
+                               invert_m4_m4(ipar, parchan->pose_mat);
+                               mul_m4_m4m4(mat, pchan->pose_mat, ipar);
+                       }
+                       else
+                               copy_m4_m4(mat, pchan->pose_mat);
+
+                       switch (type) {
+                       case 0:
+                               mat4_to_eul(v, mat);
+                               break;
+                       case 1:
+                               mat4_to_size(v, mat);
+                               break;
+                       case 2:
+                               copy_v3_v3(v, mat[3]);
+                               break;
+                       }
+
+                       v += 3;
+               }
+
+               enable_fcurves(ob_arm->adt->action, NULL);
+       }
+
+       // dae_bone_animation -> add_bone_animation
+       // (blend this into dae_bone_animation)
+       void AnimationExporter::dae_bone_animation(std::vector<float> &fra, 
float *v, int tm_type, int axis, std::string ob_name, std::string bone_name)
+       {
+               const char *axis_names[] = {"X", "Y", "Z"};
+               const char *axis_name = NULL;
+               char anim_id[200];
+               bool is_rot = tm_type == 0;
+               
+               if (!fra.size())
+                       return;
+
+               char rna_path[200];
+               BLI_snprintf(rna_path, sizeof(rna_path), 
"pose.bones[\"%s\"].%s", bone_name.c_str(),
+                                        tm_type == 0 ? "rotation_quaternion" : 
(tm_type == 1 ? "scale" : "location"));
+
+               if (axis > -1)
+                       axis_name = axis_names[axis];
+               
+               std::string transform_sid = get_transform_sid(NULL, tm_type, 
axis_name, false);
+               
+               BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s_%s", 
(char*)translate_id(ob_name).c_str(),
+                                        
(char*)translate_id(bone_name).c_str(), (char*)transform_sid.c_str());
+
+               openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
+
+               // create input source
+               std::string input_id = 
create_source_from_vector(COLLADASW::InputSemantic::INPUT, fra, is_rot, 
anim_id, axis_name);
+
+               // create output source
+               std::string output_id;
+               if (axis == -1)
+                       output_id = create_xyz_source(v, fra.size(), anim_id);
+               else
+                       output_id = 
create_source_from_array(COLLADASW::InputSemantic::OUTPUT, v, fra.size(), 
is_rot, anim_id, axis_name);
+
+               // create interpolations source
+               std::string interpolation_id = 
create_interpolation_source(fra.size(), anim_id, axis_name);
+
+               std::string sampler_id = std::string(anim_id) + 
SAMPLER_ID_SUFFIX;
+               COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
+               std::string empty;
+               sampler.addInput(COLLADASW::InputSemantic::INPUT, 
COLLADABU::URI(empty, input_id));
+               sampler.addInput(COLLADASW::InputSemantic::OUTPUT, 
COLLADABU::URI(empty, output_id));
+
+               // TODO create in/out tangents source
+
+               // this input is required
+               sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, 
COLLADABU::URI(empty, interpolation_id));
+
+               addSampler(sampler);
+
+               std::string target = translate_id(ob_name + "_" + bone_name) + 
"/" + transform_sid;
+               addChannel(COLLADABU::URI(empty, sampler_id), target);
+
+               closeAnimation();
+       }
+
+       float AnimationExporter::convert_time(float frame)
+       {
+               return FRA2TIME(frame);
+       }
+
+       float AnimationExporter::convert_angle(float angle)
+       {
+               return COLLADABU::Math::Utils::radToDegF(angle);
+       }
+
+       std::string 
AnimationExporter::get_semantic_suffix(COLLADASW::InputSemantic::Semantics 
semantic)
+       {
+               switch(semantic) {
+               case COLLADASW::InputSemantic::INPUT:
+                       return INPUT_SOURCE_ID_SUFFIX;
+               case COLLADASW::InputSemantic::OUTPUT:
+                       return OUTPUT_SOURCE_ID_SUFFIX;
+               case COLLADASW::InputSemantic::INTERPOLATION:
+                       return INTERPOLATION_SOURCE_ID_SUFFIX;
+               case COLLADASW::InputSemantic::IN_TANGENT:
+                       return INTANGENT_SOURCE_ID_SUFFIX;
+               case COLLADASW::InputSemantic::OUT_TANGENT:
+                       return OUTTANGENT_SOURCE_ID_SUFFIX;
+               default:
+                       break;

@@ Diff output truncated at 10240 characters. @@
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