Commit: 42825dc1fc03609efed30259fa69cc31819be31c
Author: Campbell Barton
Date:   Fri Sep 11 18:41:35 2015 +1000
Branches: master
https://developer.blender.org/rB42825dc1fc03609efed30259fa69cc31819be31c

Fix T46074: Collada crashes importing animation

double-frees and freeing memory already inserted into Blender.

===================================================================

M       source/blender/collada/AnimationImporter.cpp
M       source/blender/collada/AnimationImporter.h

===================================================================

diff --git a/source/blender/collada/AnimationImporter.cpp 
b/source/blender/collada/AnimationImporter.cpp
index e5f7bb2..dbff917 100644
--- a/source/blender/collada/AnimationImporter.cpp
+++ b/source/blender/collada/AnimationImporter.cpp
@@ -153,15 +153,13 @@ void 
AnimationImporter::animation_to_fcurves(COLLADAFW::AnimationCurve *curve)
                                calchandles_fcurve(fcu);
 
                                fcurves.push_back(fcu);
+                               unused_curves.push_back(fcu);
                        }
                }
                break;
                default:
                        fprintf(stderr, "Output dimension of %d is not yet 
supported (animation id = %s)\n", (int)dim, curve->getOriginalId().c_str());
        }
-
-       for (std::vector<FCurve *>::iterator it = fcurves.begin(); it != 
fcurves.end(); it++)
-               unused_curves.push_back(*it);
 }
 
 
@@ -175,6 +173,11 @@ void AnimationImporter::fcurve_deg_to_rad(FCurve *cu)
        }
 }
 
+void AnimationImporter::fcurve_is_used(FCurve *fcu)
+{
+       unused_curves.erase(std::remove(unused_curves.begin(), 
unused_curves.end(), fcu), unused_curves.end());
+}
+
 
 void AnimationImporter::add_fcurves_to_object(Object *ob, std::vector<FCurve 
*>& curves, char *rna_path, int array_index, Animation *animated)
 {
@@ -225,6 +228,7 @@ void AnimationImporter::add_fcurves_to_object(Object *ob, 
std::vector<FCurve *>&
                                
                                /* add F-Curve to group */
                                action_groups_add_channel(act, grp, fcu);
+                               fcurve_is_used(fcu);
                                
                        }
 #if 0
@@ -235,10 +239,8 @@ void AnimationImporter::add_fcurves_to_object(Object *ob, 
std::vector<FCurve *>&
                }
                else {
                        BLI_addtail(&act->curves, fcu);
+                       fcurve_is_used(fcu);
                }
-
-               // curve is used, so remove it from unused_curves
-               unused_curves.erase(std::remove(unused_curves.begin(), 
unused_curves.end(), fcu), unused_curves.end());
        }
 }
 
@@ -438,7 +440,7 @@ void AnimationImporter::modify_fcurve(std::vector<FCurve *> 
*curves, const char
                if (array_index == -1) fcu->array_index = i;
                else fcu->array_index = array_index;
 
-               unused_curves.erase(std::remove(unused_curves.begin(), 
unused_curves.end(), fcu), unused_curves.end());
+               fcurve_is_used(fcu);
        }
 }
 
@@ -448,7 +450,7 @@ void AnimationImporter::unused_fcurve(std::vector<FCurve *> 
*curves)
        std::vector<FCurve *>::iterator it;
        for (it = curves->begin(); it != curves->end(); it++) {
                FCurve *fcu = *it;
-               unused_curves.erase(std::remove(unused_curves.begin(), 
unused_curves.end(), fcu), unused_curves.end());
+               fcurve_is_used(fcu);
        }
 }
 
@@ -621,6 +623,7 @@ void AnimationImporter:: Assign_color_animations(const 
COLLADAFW::UniqueId& list
                for (iter = animcurves.begin(); iter != animcurves.end(); 
iter++) {
                        FCurve *fcu = *iter;
                        BLI_addtail(AnimCurves, fcu);
+                       fcurve_is_used(fcu);
                }
        }
 
@@ -660,6 +663,7 @@ void AnimationImporter:: Assign_float_animations(const 
COLLADAFW::UniqueId& list
                                /** XXX What About animtype "rotation" ? */
 
                                BLI_addtail(AnimCurves, fcu);
+                               fcurve_is_used(fcu);
                        }
                }
        }
@@ -705,6 +709,7 @@ void AnimationImporter::Assign_lens_animations(const 
COLLADAFW::UniqueId& listid
                                }
 
                                BLI_addtail(AnimCurves, fcu);
+                               fcurve_is_used(fcu);
                        }
                }
        }
@@ -840,8 +845,10 @@ void AnimationImporter::apply_matrix_curves(Object *ob, 
std::vector<FCurve *>& a
                        add_bone_fcurve(ob, node, newcu[i]);
                else
                        BLI_addtail(curves, newcu[i]);
+               // fcurve_is_used(newcu[i]);  // never added to unused
        }
 
+
        if (is_joint) {
                bPoseChannel *chan = BKE_pose_channel_find_name(ob->pose, 
bone_name);
                chan->rotmode = ROT_MODE_QUAT;
@@ -966,6 +973,7 @@ void 
AnimationImporter::translate_Animations(COLLADAFW::Node *node,
                                                                FCurve *fcu = 
*iter;
                                                        
                                                                
BLI_addtail(AnimCurves, fcu);
+                                                               
fcurve_is_used(fcu);
                                                        }
                                                }
                                                
@@ -1233,6 +1241,7 @@ void AnimationImporter::add_bone_animation_sampled(Object 
*ob, std::vector<FCurv
        // add curves
        for (int i = 0; i < totcu; i++) {
                add_bone_fcurve(ob, node, newcu[i]);
+               // fcurve_is_used(newcu[i]);  // never added to unused
        }
 
        bPoseChannel *chan = BKE_pose_channel_find_name(ob->pose, bone_name);
@@ -1832,7 +1841,7 @@ bool 
AnimationImporter::evaluate_animation(COLLADAFW::Transformation *tm, float
                                                i++;
                                                j = 0;
                                        }
-                                       
unused_curves.erase(std::remove(unused_curves.begin(), unused_curves.end(), 
*it), unused_curves.end());
+                                       fcurve_is_used(*it);
                                }
 
                                COLLADAFW::Matrix tm(matrix);
diff --git a/source/blender/collada/AnimationImporter.h 
b/source/blender/collada/AnimationImporter.h
index 565fe18..15dee8f 100644
--- a/source/blender/collada/AnimationImporter.h
+++ b/source/blender/collada/AnimationImporter.h
@@ -85,7 +85,10 @@ private:
 
        void fcurve_deg_to_rad(FCurve *cu);
 
+       void fcurve_is_used(FCurve *fcu);
+
        void add_fcurves_to_object(Object *ob, std::vector<FCurve*>& curves, 
char *rna_path, int array_index, Animation *animated);
+
        
        int typeFlag;

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