7 files changed, 24 insertions, 22 deletions
diff --git a/source/blender/ikplugin/BIK_api.h b/source/blender/ikplugin/BIK_api.h
index 8fd13507d3a..ad842029941 100644
--- a/source/blender/ikplugin/BIK_api.h
+++ b/source/blender/ikplugin/BIK_api.h
@@ -62,8 +62,8 @@ struct BIK_ParamValue {
 };
 typedef struct BIK_ParamValue BIK_ParamValue;
 
-void BIK_initialize_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
-void BIK_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, struct bPoseChannel *pchan, float ctime);
+void BIK_initialize_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
+void BIK_execute_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, struct bPoseChannel *pchan, float ctime);
 void BIK_release_tree(struct Scene *scene, struct Object *ob, float ctime);
 void BIK_clear_data(struct bPose *pose);
 void BIK_clear_cache(struct bPose *pose);
diff --git a/source/blender/ikplugin/intern/ikplugin_api.c b/source/blender/ikplugin/intern/ikplugin_api.c
index 09a2c3b88ed..0ee26ff45f1 100644
--- a/source/blender/ikplugin/intern/ikplugin_api.c
+++ b/source/blender/ikplugin/intern/ikplugin_api.c
@@ -89,7 +89,7 @@ static IKPlugin *get_plugin(bPose *pose)
 /*----------------------------------------*/
 /* Plugin API							  */
 
-void BIK_initialize_tree(struct EvaluationContext *eval_ctx, Scene *scene, Object *ob, float ctime)
+void BIK_initialize_tree(const struct EvaluationContext *eval_ctx, Scene *scene, Object *ob, float ctime)
 {
 	IKPlugin *plugin = get_plugin(ob->pose);
 
@@ -97,7 +97,7 @@ void BIK_initialize_tree(struct EvaluationContext *eval_ctx, Scene *scene, Objec
 		plugin->initialize_tree_func(eval_ctx, scene, ob, ctime);
 }
 
-void BIK_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, bPoseChannel *pchan, float ctime)
+void BIK_execute_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, bPoseChannel *pchan, float ctime)
 {
 	IKPlugin *plugin = get_plugin(ob->pose);
 
diff --git a/source/blender/ikplugin/intern/ikplugin_api.h b/source/blender/ikplugin/intern/ikplugin_api.h
index 07dd601012f..9a71463ede4 100644
--- a/source/blender/ikplugin/intern/ikplugin_api.h
+++ b/source/blender/ikplugin/intern/ikplugin_api.h
@@ -45,8 +45,8 @@ struct EvaluationContext;
 
 
 struct IKPlugin {
-	void (*initialize_tree_func)(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
-	void (*execute_tree_func)(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, struct bPoseChannel *pchan, float ctime);
+	void (*initialize_tree_func)(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
+	void (*execute_tree_func)(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, struct bPoseChannel *pchan, float ctime);
 	void (*release_tree_func)(struct Scene *scene, struct Object *ob, float ctime);
 	void (*remove_armature_func)(struct bPose *pose);
 	void (*clear_cache)(struct bPose *pose);
diff --git a/source/blender/ikplugin/intern/iksolver_plugin.c b/source/blender/ikplugin/intern/iksolver_plugin.c
index 1917db24d4f..5169b72590c 100644
--- a/source/blender/ikplugin/intern/iksolver_plugin.c
+++ b/source/blender/ikplugin/intern/iksolver_plugin.c
@@ -252,7 +252,7 @@ static void where_is_ik_bone(bPoseChannel *pchan, float ik_mat[3][3])   // nr =
 
 /* called from within the core BKE_pose_where_is loop, all animsystems and constraints
  * were executed & assigned. Now as last we do an IK pass */
-static void execute_posetree(struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, PoseTree *tree)
+static void execute_posetree(const struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, PoseTree *tree)
 {
 	float R_parmat[3][3], identity[3][3];
 	float iR_parmat[3][3];
@@ -534,7 +534,7 @@ static void free_posetree(PoseTree *tree)
 ///----------------------------------------
 /// Plugin API for legacy iksolver
 
-void iksolver_initialize_tree(struct EvaluationContext *UNUSED(eval_ctx), struct Scene *UNUSED(scene), struct Object *ob, float UNUSED(ctime))
+void iksolver_initialize_tree(const struct EvaluationContext *UNUSED(eval_ctx), struct Scene *UNUSED(scene), struct Object *ob, float UNUSED(ctime))
 {
 	bPoseChannel *pchan;
 
@@ -545,7 +545,7 @@ void iksolver_initialize_tree(struct EvaluationContext *UNUSED(eval_ctx), struct
 	ob->pose->flag &= ~POSE_WAS_REBUILT;
 }
 
-void iksolver_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob,  bPoseChannel *pchan_root, float ctime)
+void iksolver_execute_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob,  bPoseChannel *pchan_root, float ctime)
 {
 	while (pchan_root->iktree.first) {
 		PoseTree *tree = pchan_root->iktree.first;
diff --git a/source/blender/ikplugin/intern/iksolver_plugin.h b/source/blender/ikplugin/intern/iksolver_plugin.h
index b9bdbd892ec..f1ca91ebb49 100644
--- a/source/blender/ikplugin/intern/iksolver_plugin.h
+++ b/source/blender/ikplugin/intern/iksolver_plugin.h
@@ -40,9 +40,11 @@
 extern "C" {
 #endif
 
-void iksolver_initialize_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
-void iksolver_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob,
-                           struct bPoseChannel *pchan_root, float ctime);
+void iksolver_initialize_tree(
+        const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
+void iksolver_execute_tree(
+        const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob,
+        struct bPoseChannel *pchan_root, float ctime);
 
 #ifdef __cplusplus
 }
diff --git a/source/blender/ikplugin/intern/itasc_plugin.cpp b/source/blender/ikplugin/intern/itasc_plugin.cpp
index 2227747e7a1..93460559067 100644
--- a/source/blender/ikplugin/intern/itasc_plugin.cpp
+++ b/source/blender/ikplugin/intern/itasc_plugin.cpp
@@ -542,7 +542,7 @@ static void GetJointRotation(KDL::Rotation& boneRot, int type, double *rot)
 	}
 }
 
-static bool target_callback(struct EvaluationContext *eval_ctx, const iTaSC::Timestamp& timestamp, const iTaSC::Frame& current, iTaSC::Frame& next, void *param)
+static bool target_callback(const struct EvaluationContext *eval_ctx, const iTaSC::Timestamp& timestamp, const iTaSC::Frame& current, iTaSC::Frame& next, void *param)
 {
 	IK_Target *target = (IK_Target *)param;
 	// compute next target position
@@ -577,7 +577,7 @@ static bool target_callback(struct EvaluationContext *eval_ctx, const iTaSC::Tim
 	return true;
 }
 
-static bool base_callback(struct EvaluationContext *eval_ctx, const iTaSC::Timestamp& timestamp, const iTaSC::Frame& current, iTaSC::Frame& next, void *param)
+static bool base_callback(const struct EvaluationContext *eval_ctx, const iTaSC::Timestamp& timestamp, const iTaSC::Frame& current, iTaSC::Frame& next, void *param)
 {
 	IK_Scene *ikscene = (IK_Scene *)param;
 	// compute next armature base pose
@@ -863,7 +863,7 @@ static bool joint_callback(const iTaSC::Timestamp& timestamp, iTaSC::ConstraintV
 }
 
 // build array of joint corresponding to IK chain
-static int convert_channels(struct EvaluationContext *eval_ctx, IK_Scene *ikscene, PoseTree *tree, float ctime)
+static int convert_channels(const struct EvaluationContext *eval_ctx, IK_Scene *ikscene, PoseTree *tree, float ctime)
 {
 	IK_Channel *ikchan;
 	bPoseChannel *pchan;
@@ -1056,7 +1056,7 @@ static void BKE_pose_rest(IK_Scene *ikscene)
 	}
 }
 
-static IK_Scene *convert_tree(struct EvaluationContext *eval_ctx, Scene *blscene, Object *ob, bPoseChannel *pchan, float ctime)
+static IK_Scene *convert_tree(const struct EvaluationContext *eval_ctx, Scene *blscene, Object *ob, bPoseChannel *pchan, float ctime)
 {
 	PoseTree *tree = (PoseTree *)pchan->iktree.first;
 	PoseTarget *target;
@@ -1526,7 +1526,7 @@ static IK_Scene *convert_tree(struct EvaluationContext *eval_ctx, Scene *blscene
 	return ikscene;
 }
 
-static void create_scene(struct EvaluationContext *eval_ctx, Scene *scene, Object *ob, float ctime)
+static void create_scene(const struct EvaluationContext *eval_ctx, Scene *scene, Object *ob, float ctime)
 {
 	bPoseChannel *pchan;
 
@@ -1576,7 +1576,7 @@ static int init_scene(Object *ob)
 	return 0;
 }
 
-static void execute_scene(struct EvaluationContext *eval_ctx, Scene *blscene, IK_Scene *ikscene, bItasc *ikparam, float ctime, float frtime)
+static void execute_scene(const struct EvaluationContext *eval_ctx, Scene *blscene, IK_Scene *ikscene, bItasc *ikparam, float ctime, float frtime)
 {
 	int i;
 	IK_Channel *ikchan;
@@ -1744,7 +1744,7 @@ static void execute_scene(struct EvaluationContext *eval_ctx, Scene *blscene, IK
 //---------------------------------------------------
 // plugin interface
 //
-void itasc_initialize_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, float ctime)
+void itasc_initialize_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob, float ctime)
 {
 	bPoseChannel *pchan;
 	int count = 0;
@@ -1770,7 +1770,7 @@ void itasc_initialize_tree(struct EvaluationContext *eval_ctx, struct Scene *sce
 	ob->pose->flag &= ~POSE_WAS_REBUILT;
 }
 
-void itasc_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob,  bPoseChannel *pchan_root, float ctime)
+void itasc_execute_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, Object *ob,  bPoseChannel *pchan_root, float ctime)
 {
 	if (ob->pose->ikdata) {
 		IK_Data *ikdata = (IK_Data *)ob->pose->ikdata;
diff --git a/source/blender/ikplugin/intern/itasc_plugin.h b/source/blender/ikplugin/intern/itasc_plugin.h
index fb948e98696..2f4e4036d76 100644
--- a/source/blender/ikplugin/intern/itasc_plugin.h
+++ b/source/blender/ikplugin/intern/itasc_plugin.h
@@ -40,8 +40,8 @@
 extern "C" {
 #endif
 
-void itasc_initialize_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
-void itasc_execute_tree(struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob,  struct bPoseChannel *pchan_root, float ctime);
+void itasc_initialize_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob, float ctime);
+void itasc_execute_tree(const struct EvaluationContext *eval_ctx, struct Scene *scene, struct Object *ob,  struct bPoseChannel *pchan_root, float ctime);
 void itasc_release_tree(struct Scene *scene, struct Object *ob,  float ctime);
 void itasc_clear_data(struct bPose *pose);
 void itasc_clear_cache(struct bPose *pose);