llvovolume.h

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#ifndef LL_LLVOVOLUME_H
#define LL_LLVOVOLUME_H

#include "llviewerobject.h"
#include "llspatialpartition.h"
#include "llviewerimage.h"
#include "llframetimer.h"
#include "llapr.h"
#include <map>

class LLViewerTextureAnim;
class LLDrawPool;
class LLSelectNode;

enum LLVolumeInterfaceType
{
        INTERFACE_FLEXIBLE = 1,
};

// Base class for implementations of the volume - Primitive, Flexible Object, etc.
class LLVolumeInterface
{
public:
        virtual ~LLVolumeInterface() { }
        virtual LLVolumeInterfaceType getInterfaceType() const = 0;
        virtual BOOL doIdleUpdate(LLAgent &agent, LLWorld &world, const F64 &time) = 0;
        virtual BOOL doUpdateGeometry(LLDrawable *drawable) = 0;
        virtual LLVector3 getPivotPosition() const = 0;
        virtual void onSetVolume(const LLVolumeParams &volume_params, const S32 detail) = 0;
        virtual void onSetScale(const LLVector3 &scale, BOOL damped) = 0;
        virtual void onParameterChanged(U16 param_type, LLNetworkData *data, BOOL in_use, bool local_origin) = 0;
        virtual void onShift(const LLVector3 &shift_vector) = 0;
        virtual bool isVolumeUnique() const = 0; // Do we need a unique LLVolume instance?
        virtual bool isVolumeGlobal() const = 0; // Are we in global space?
        virtual bool isActive() const = 0; // Is this object currently active?
        virtual const LLMatrix4& getWorldMatrix(LLXformMatrix* xform) const = 0;
        virtual void updateRelativeXform() = 0;
        virtual U32 getID() const = 0;
};

// Class which embodies all Volume objects (with pcode LL_PCODE_VOLUME)
class LLVOVolume : public LLViewerObject
{
protected:
        virtual                         ~LLVOVolume();

public:
        static          void    initClass();
        static          void    preUpdateGeom();
        
        enum 
        {
                VERTEX_DATA_MASK =      (1 << LLVertexBuffer::TYPE_VERTEX) |
                                                        (1 << LLVertexBuffer::TYPE_NORMAL) |
                                                        (1 << LLVertexBuffer::TYPE_TEXCOORD) |
                                                        (1 << LLVertexBuffer::TYPE_TEXCOORD2) |
                                                        (1 << LLVertexBuffer::TYPE_COLOR)
        };

public:
                                                LLVOVolume(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);

        /*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);

                                void    deleteFaces();

                                void    animateTextures();
        /*virtual*/ BOOL        idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);

        /*virtual*/ BOOL        isActive() const;
        /*virtual*/ BOOL        isAttachment() const;
        /*virtual*/ BOOL        isRootEdit() const; // overridden for sake of attachments treating themselves as a root object
        /*virtual*/ BOOL        isHUDAttachment() const;

                                void    generateSilhouette(LLSelectNode* nodep, const LLVector3& view_point);
        /*virtual*/     void    setParent(LLViewerObject* parent);
                                F32             getIndividualRadius()                                   { return mRadius; }
                                S32             getLOD() const                                                  { return mLOD; }
        const LLVector3         getPivotPositionAgent() const;
        const LLMatrix4&        getRelativeXform() const                                { return mRelativeXform; }
        const LLMatrix3&        getRelativeXformInvTrans() const                { return mRelativeXformInvTrans; }
        /*virtual*/     const LLMatrix4 getRenderMatrix() const;

        /*virtual*/ BOOL        lineSegmentIntersect(const LLVector3& start, LLVector3& end) const;
                                LLVector3 agentPositionToVolume(const LLVector3& pos) const;
                                LLVector3 agentDirectionToVolume(const LLVector3& dir) const;
                                LLVector3 volumePositionToAgent(const LLVector3& dir) const;

                                
                                BOOL    getVolumeChanged() const                                { return mVolumeChanged; }
                                F32             getTextureVirtualSize(LLFace* face);
        /*virtual*/ F32         getRadius() const                                               { return mVObjRadius; };
                                const LLMatrix4& getWorldMatrix(LLXformMatrix* xform) const;

                                void    markForUpdate(BOOL priority)                    { LLViewerObject::markForUpdate(priority); mVolumeChanged = TRUE; }

        /*virtual*/ void        onShift(const LLVector3 &shift_vector); // Called when the drawable shifts

        /*virtual*/ void        parameterChanged(U16 param_type, bool local_origin);
        /*virtual*/ void        parameterChanged(U16 param_type, LLNetworkData* data, BOOL in_use, bool local_origin);

        /*virtual*/ U32         processUpdateMessage(LLMessageSystem *mesgsys,
                                                                                        void **user_data,
                                                                                        U32 block_num, const EObjectUpdateType update_type,
                                                                                        LLDataPacker *dp);

        /*virtual*/ void        setSelected(BOOL sel);
        /*virtual*/ BOOL        setDrawableParent(LLDrawable* parentp);

        /*virtual*/ void        setScale(const LLVector3 &scale, BOOL damped);

        /*virtual*/ void        setTEImage(const U8 te, LLViewerImage *imagep);
        /*virtual*/ S32         setTETexture(const U8 te, const LLUUID &uuid);
        /*virtual*/ S32         setTEColor(const U8 te, const LLColor4 &color);
        /*virtual*/ S32         setTEBumpmap(const U8 te, const U8 bump);
        /*virtual*/ S32         setTEShiny(const U8 te, const U8 shiny);
        /*virtual*/ S32         setTEFullbright(const U8 te, const U8 fullbright);
        /*virtual*/ S32         setTEMediaFlags(const U8 te, const U8 media_flags);
        /*virtual*/ S32         setTEScale(const U8 te, const F32 s, const F32 t);
        /*virtual*/ S32         setTEScaleS(const U8 te, const F32 s);
        /*virtual*/ S32         setTEScaleT(const U8 te, const F32 t);
        /*virtual*/ S32         setTETexGen(const U8 te, const U8 texgen);
        /*virtual*/ BOOL        setMaterial(const U8 material);

                                void    setTexture(const S32 face);

        /*virtual*/ BOOL        setVolume(const LLVolumeParams &volume_params, const S32 detail, bool unique_volume = false);
                                void    sculpt();
                                void    updateRelativeXform();
        /*virtual*/ BOOL        updateGeometry(LLDrawable *drawable);
        /*virtual*/ void        updateFaceSize(S32 idx);
        /*virtual*/ BOOL        updateLOD();
                                void    updateRadius();
        /*virtual*/ void        updateTextures(LLAgent &agent);
                                void    updateTextures();

                                void    updateFaceFlags();
                                void    regenFaces();
                                BOOL    genBBoxes(BOOL force_global);
        virtual         void    updateSpatialExtents(LLVector3& min, LLVector3& max);
        virtual         F32             getBinRadius();
        virtual         void    writeCAL3D(apr_file_t* fp, 
                                                        std::string& path,
                                                        std::string& file_base,
                                                        S32 joint_num, 
                                                        LLVector3& pos, 
                                                        LLQuaternion& rot, 
                                                        S32& material_index, 
                                                        S32& texture_index, 
                                                        std::multimap<LLUUID, LLMaterialExportInfo*>& material_map);


        virtual U32 getPartitionType() const;

        // For Lights
        void setIsLight(BOOL is_light);
        void setLightColor(const LLColor3& color);
        void setLightIntensity(F32 intensity);
        void setLightRadius(F32 radius);
        void setLightFalloff(F32 falloff);
        void setLightCutoff(F32 cutoff);
        BOOL getIsLight() const;
        LLColor3 getLightBaseColor() const; // not scaled by intensity
        LLColor3 getLightColor() const; // scaled by intensity
        F32 getLightIntensity() const;
        F32 getLightRadius() const;
        F32 getLightFalloff() const;
        F32 getLightCutoff() const;
        F32 getLightDistance(const LLVector3& pos) const; // returns < 0 if inside radius

        // Flexible Objects
        U32 getVolumeInterfaceID() const;
        virtual BOOL isFlexible() const;
        virtual BOOL isSculpted() const;
        BOOL isVolumeGlobal() const;
        BOOL canBeFlexible() const;
        BOOL setIsFlexible(BOOL is_flexible);
        
        // Lighting
        F32 calcLightAtPoint(const LLVector3& pos, const LLVector3& norm, LLColor4& result);
        BOOL updateLighting(BOOL do_lighting);

protected:
        S32     computeLODDetail(F32    distance, F32 radius);
        BOOL calcLOD();
        LLFace* addFace(S32 face_index);
        void updateTEData();

public:
        LLViewerTextureAnim *mTextureAnimp;
        U8 mTexAnimMode;
protected:
        friend class LLDrawable;
        
        BOOL            mFaceMappingChanged;
        BOOL            mGlobalVolume;
        BOOL            mInited;
        LLFrameTimer mTextureUpdateTimer;
        S32                     mLOD;
        BOOL            mLODChanged;
        BOOL            mSculptChanged;
        F32                     mRadius;
        LLMatrix4       mRelativeXform;
        LLMatrix3       mRelativeXformInvTrans;
        BOOL            mVolumeChanged;
        F32                     mVObjRadius;
        LLVolumeInterface *mVolumeImpl;
        LLPointer<LLViewerImage> mSculptTexture;
        
        // statics
public:
        static F32 sLODSlopDistanceFactor;// Changing this to zero, effectively disables the LOD transition slop 
        static F32 sLODFactor;                          // LOD scale factor
        static F32 sDistanceFactor;                     // LOD distance factor
                
protected:
        static S32 sNumLODChanges;
        
        friend class LLVolumeImplFlexible;
};

#endif // LL_LLVOVOLUME_H

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