llpose.h

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#ifndef LL_LLPOSE_H
#define LL_LLPOSE_H

//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include <string>

#include "llmap.h"
#include "lljointstate.h"
#include "lljoint.h"
#include <map>


//-----------------------------------------------------------------------------
// class LLPose
//-----------------------------------------------------------------------------
class LLPose
{
        friend class LLPoseBlender;
protected:
        typedef std::map<std::string, LLPointer<LLJointState> > joint_map;
        typedef joint_map::iterator joint_map_iterator;
        typedef joint_map::value_type joint_map_value_type;
        
        joint_map                                       mJointMap;
        F32                                                     mWeight;
        joint_map_iterator                      mListIter;
public:
        // Iterate through jointStates
        LLJointState* getFirstJointState();
        LLJointState* getNextJointState();
        LLJointState* findJointState(LLJoint *joint);
        LLJointState* findJointState(const std::string &name);
public:
        // Constructor
        LLPose() : mWeight(0.f) {}
        // Destructor
        ~LLPose();
        // add a joint state in this pose
        BOOL addJointState(const LLPointer<LLJointState>& jointState);
        // remove a joint state from this pose
        BOOL removeJointState(const LLPointer<LLJointState>& jointState);
        // removes all joint states from this pose
        BOOL removeAllJointStates();
        // set weight for all joint states in this pose
        void setWeight(F32 weight);
        // get weight for this pose
        F32 getWeight() const;
        // returns number of joint states stored in this pose
        S32 getNumJointStates() const;
};

const S32 JSB_NUM_JOINT_STATES = 6;

class LLJointStateBlender
{
protected:
        LLPointer<LLJointState> mJointStates[JSB_NUM_JOINT_STATES];
        S32                             mPriorities[JSB_NUM_JOINT_STATES];
        BOOL                    mAdditiveBlends[JSB_NUM_JOINT_STATES];
public:
        LLJointStateBlender();
        ~LLJointStateBlender();
        void blendJointStates(BOOL apply_now = TRUE);
        BOOL addJointState(const LLPointer<LLJointState>& joint_state, S32 priority, BOOL additive_blend);
        void interpolate(F32 u);
        void clear();
        void resetCachedJoint();

public:
        LLJoint mJointCache;
};

class LLMotion;

class LLPoseBlender
{
protected:
        typedef std::list<LLJointStateBlender*> blender_list_t;
        typedef std::map<LLJoint*,LLJointStateBlender*> blender_map_t;
        blender_map_t mJointStateBlenderPool;
        blender_list_t mActiveBlenders;

        S32                     mNextPoseSlot;
        LLPose          mBlendedPose;
public:
        // Constructor
        LLPoseBlender();
        // Destructor
        ~LLPoseBlender();
        
        // request motion joint states to be added to pose blender joint state records
        BOOL addMotion(LLMotion* motion);

        // blend all joint states and apply to skeleton
        void blendAndApply();

        // removes all joint state blenders from last time
        void clearBlenders();

        // blend all joint states and cache results
        void blendAndCache(BOOL reset_cached_joints);

        // interpolate all joints towards cached values
        void interpolate(F32 u);

        LLPose* getBlendedPose() { return &mBlendedPose; }
};

#endif // LL_LLPOSE_H

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