source: OGRE/trunk/ogrenew/RenderSystems/GL/src/nvparse/rc1.0_general.h @ 692

#ifndef _RC10_GENERAL_H
#define _RC10_GENERAL_H

#include "rc1.0_register.h"
#include "nvparse_errors.h"
#include "nvparse_externs.h"

enum {
        RCP_MUL = 0,
        RCP_DOT,
        RCP_MUX,
        RCP_SUM
};

class ConstColorStruct {
public:
        void Init(RegisterEnum _reg, float _v0, float _v1, float _v2, float _v3)
        { reg = _reg; v[0] = _v0; v[1] = _v1; v[2] = _v2; v[3] = _v3; }
        RegisterEnum reg;
        float v[4];
};

class OpStruct {
public:
        void Init(int _op, RegisterEnum _reg0, MappedRegisterStruct _reg1, MappedRegisterStruct _reg2)
        { op = _op; reg[0].reg = _reg0; reg[1] = _reg1; reg[2] = _reg2; }
        void Init(int _op, RegisterEnum _reg0)
        { op = _op; reg[0].reg = _reg0; }
        int op;
        MappedRegisterStruct reg[3];
        void Validate(int stage, int portion);
};

class GeneralFunctionStruct {
public:
        void Init(OpStruct _op0, OpStruct _op1, OpStruct _op2) { op[0] = _op0; op[1] = _op1; op[2] = _op2; numOps = 3; }
        void Init(OpStruct _op0, OpStruct _op1) { op[0] = _op0; op[1] = _op1; numOps = 2; }
        void Init(OpStruct _op0) { op[0] = _op0; numOps = 1; }
        void Validate(int stage, int portion);
        void Invoke(int stage, int portion, BiasScaleEnum bs);
        void ZeroOut();
        int numOps;
        OpStruct op[3];
};


class GeneralPortionStruct {
public:
        void Init(int _designator, GeneralFunctionStruct _gf, BiasScaleEnum _bs)
        { designator = _designator; gf = _gf; bs = _bs; }

        void Validate(int stage);
        void Invoke(int stage);
        void ZeroOut();
        int designator;
        GeneralFunctionStruct gf;
        BiasScaleEnum bs;
};

class GeneralCombinerStruct {
public:
        void Init(GeneralPortionStruct _portion0, GeneralPortionStruct _portion1, ConstColorStruct _cc0, ConstColorStruct _cc1)
        { portion[0] = _portion0; portion[1] = _portion1; numPortions = 2; cc[0] = _cc0; cc[1] = _cc1; numConsts = 2; }
        void Init(GeneralPortionStruct _portion0, GeneralPortionStruct _portion1, ConstColorStruct _cc0)
        { portion[0] = _portion0; portion[1] = _portion1; numPortions = 2; cc[0] = _cc0; numConsts = 1; }
        void Init(GeneralPortionStruct _portion0, GeneralPortionStruct _portion1)
        { portion[0] = _portion0; portion[1] = _portion1; numPortions = 2; numConsts = 0; }

        void Init(GeneralPortionStruct _portion0, ConstColorStruct _cc0, ConstColorStruct _cc1)
        { portion[0] = _portion0; numPortions = 1; cc[0] = _cc0; cc[1] = _cc1; numConsts = 2; }
        void Init(GeneralPortionStruct _portion0, ConstColorStruct _cc0)
        { portion[0] = _portion0; numPortions = 1; cc[0] = _cc0; numConsts = 1; }
        void Init(GeneralPortionStruct _portion0)
        { portion[0] = _portion0; numPortions = 1; numConsts = 0; }

        void Validate(int stage);
        void SetUnusedLocalConsts(int numGlobalConsts, ConstColorStruct *globalCCs);
        void Invoke(int stage);
        void ZeroOut();
        GeneralPortionStruct portion[2];
        int numPortions;
        ConstColorStruct cc[2];
        int numConsts;
};

class GeneralCombinersStruct {
public:
        void Init() {num = 0;}
        void Init(GeneralCombinerStruct _gc) { num = 1; general[0] = _gc; }
        GeneralCombinersStruct& operator+=(GeneralCombinerStruct& _gc)
        {
                if (num < RCP_NUM_GENERAL_COMBINERS)
                        general[num++] = _gc;
                else
                        errors.set("Too many general combiners.");
                return *this;
        }
        void Validate(int numConsts, ConstColorStruct *cc);
        void Invoke();
        GeneralCombinerStruct general[RCP_NUM_GENERAL_COMBINERS];
        int num;
private:
        int localConsts;
};


#endif