/*===================== begin_copyright_notice ==================================

Copyright (c) 2017 Intel Corporation

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


======================= end_copyright_notice ==================================*/
#pragma once
#include "usc_config.h"
#include "usc.h"
#include "ShaderToken.h"
#include "ShaderTypes.h"
#include "SurfaceFormats.h"

namespace IGC
{
    class CAllocator;
}

namespace USC
{
    struct SIndexedTempDeclType;
}

namespace iSTD
{
    template<typename Type, class CAllocatorType>
    class CArray;
}

namespace USC
{

/*****************************************************************************\

Class:
    CShaderDecl

Description:

\*****************************************************************************/
class USC_API CShaderDecl
{
public:

    static ErrorCode   Create( CShaderDecl*& pShaderDecl );
    static void     Delete( CShaderDecl*& pShaderDecl );

    virtual void    Declare( const unsigned int number );
    virtual bool    IsDeclared( const unsigned int number ) const;
    virtual void    UnDeclare( const unsigned int number );
    virtual unsigned int   GetCount( void ) const;

    unsigned int    GetMaxNumber( void ) const { return m_MaxNumber; };
    unsigned int    GetMinNumber( void ) const { return m_MinNumber; };


    unsigned int    GetNextUndeclared( const unsigned int nextUndeclared ) const;

    virtual void    Compress( void );

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );

protected:
    CShaderDecl( );
    virtual ~CShaderDecl( void );

    virtual ErrorCode  Initialize( void );

    template<typename TOpType>
    ErrorCode  ValidateOperation( const CShaderDecl& src, unsigned char*& pStream );

    
    unsigned int   m_MaxNumber;
    unsigned int   m_MinNumber;
};

/*****************************************************************************\

Class:
    CShaderFiniteDecl

Description:

\*****************************************************************************/
class USC_API CShaderFiniteDecl :
    public CShaderDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters,
                        CShaderFiniteDecl*& pShaderDecl );
    static void     Delete( CShaderFiniteDecl*& pShaderDecl );

    virtual void    Declare( const unsigned int number );
    virtual bool    IsDeclared( const unsigned int number ) const;
    virtual void    UnDeclare( const unsigned int number );
    virtual unsigned int   GetCount( void ) const;
    unsigned int    GetMaxRegisters( void ) const;

    void			GetListOfDeclared( const unsigned int** listOfDeclared, unsigned int &listSize ) const;
    bool            GetNextUndeclared( const unsigned int nextUndeclaredHint, unsigned int& nextUndeclared );
    void            GetDeclaredIndexList( const ShaderRegisterIndexType** declaredIndex, unsigned int &listSize ) const;
    
    const unsigned int* GetListOfDeclared( void ) const;
    const ShaderRegisterIndexType* GetDeclaredIndexList( void ) const;

    virtual void    Compress( void );

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );

protected:
    CShaderFiniteDecl( 
        const bool allowResizing,
        const unsigned int maxRegisters );
    virtual ~CShaderFiniteDecl( void );

    virtual ErrorCode  Initialize(  );
    virtual bool    Resize( unsigned int number );

    const bool                  m_cAllowResizing;

    ShaderRegisterIndexType*    m_pDeclaredIndex;  // for each register holds SHADER_REGISTER_INDEX_NONE
                                                   // if not declared or its declared index otherwise 
    unsigned int* m_pDeclaredList;
    unsigned int  m_MaxRegisters;
    unsigned int  m_Count;

private:
    CShaderFiniteDecl(const CShaderFiniteDecl&);
    void operator=(const CShaderFiniteDecl&);

};

/*****************************************************************************\

Class:
    CShaderSamplerDecl

Description:

\*****************************************************************************/
class USC_API CShaderSamplerDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode    Create(
                            const unsigned int maxRegisters,
                            CShaderSamplerDecl*& pShaderDecl );
    static void         Delete(
                            CShaderSamplerDecl*& pShaderDecl );

    void                SetSamplerType(
                            const unsigned int number,
                            USC::SHADER_SAMPLER_TYPE type );

    SHADER_SAMPLER_TYPE GetSamplerType(
                            const unsigned int number ) const;

protected:
    CShaderSamplerDecl( const unsigned int maxRegisters );
    virtual ~CShaderSamplerDecl( void );

    virtual ErrorCode  Initialize( void );

private:
    iSTD::CArray<SShaderSamplerDeclType,IGC::CAllocator>* m_pSamplerDecl;
};

/*****************************************************************************\

Class:
    CShaderResourceDecl

Description:

\*****************************************************************************/
class USC_API CShaderResourceDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode    Create(
                            const unsigned int maxRegisters,
                            CShaderResourceDecl*& pShaderDecl );
    static void         Delete(
                            CShaderResourceDecl*& pShaderDecl );

    void    SetResourceType(
                const unsigned int number,
                const SHADER_RESOURCE_TYPE type );

    void    SetSurfaceFormat(
                const unsigned int number,
                const SURFACE_FORMAT surfaceFormat );

    void    SetUAVAccessMode(
                const unsigned int number,
                const SHADER_UAV_ACCESS_MODE accessMode );

    void    SetReturnType(
                const unsigned int number,
                const SHADER_RESOURCE_RETURN_TYPE type );

    void    SetStride(
                const unsigned int number,
                const unsigned int stride );

    void    SetByteOrStructCount(
                const unsigned int number,
                const unsigned int byteOrStructCount );

    void    SetOffset(
                const unsigned int number,
                const unsigned int offset );

    void    SetAccessCoherency(
                const unsigned int number,
                const bool accessCoherency);

    void    SetTGSMVariable(
                const unsigned int number);

    void    SetAlignment(
                const unsigned int number,
                const unsigned int alignment );

    SURFACE_FORMAT
            GetSurfaceFormat(
                const unsigned int number ) const;

    SHADER_RESOURCE_TYPE
            GetResourceType(
                const unsigned int number ) const;

    unsigned int    GetResourceStride(
                const unsigned int number ) const;

    unsigned int    GetByteOrStructCount(
                const unsigned int number ) const;

    unsigned int   GetOffset(
                const unsigned int number ) const;

    bool    GetAccessCoherency(
                const unsigned int number ) const;

    unsigned int   GetAlignment(
                const unsigned int number ) const;

    SHADER_RESOURCE_RETURN_TYPE
            GetReturnType(
                const unsigned int number ) const;

    bool    IsTGSMFixed(
                const unsigned int number ) const;

    bool    IsTGSMVariable(
                const unsigned int number ) const;

    virtual void    Compress( void );

    SShaderResourceDeclType
            GetResourceDeclElement(
                const unsigned int index ) const;

    unsigned int GetResourceDeclSize( void ) const;

    bool    IsValid( void ) const;

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );


protected:
    CShaderResourceDecl( const unsigned int maxRegisters );
    virtual ~CShaderResourceDecl( void );

    virtual ErrorCode  Initialize( void );

    iSTD::CArray<SShaderResourceDeclType,IGC::CAllocator>*   m_pResourceDecl;

private:
    CShaderResourceDecl(const CShaderResourceDecl&);
    void operator=(const CShaderResourceDecl&);
};

/*****************************************************************************\

Class:
    CShaderInputDecl

Description:

\*****************************************************************************/
class USC_API CShaderInputDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderInputDecl*& pShaderDecl );
    static void     Delete( CShaderInputDecl*& pShaderDecl );

    void    SetMask(
                const unsigned int number,
                const SHADER_MASK mask );

    void    SetUsage(
                const unsigned int number,
                const SHADER_CHANNEL channel,
                const SHADER_USAGE usage );

    void    SetUsageIndex(
                const unsigned int number,
                const SHADER_CHANNEL channel,
                const unsigned int usageIndex );

    void    SetInterpolationMode(
                const unsigned int number,
                const SHADER_INTERPOLATION_MODE mode );

    void    SetIndexed(
                const unsigned int number,
                const bool indexed );

    SHADER_MASK     GetMask(
                        const unsigned int number ) const;

    SHADER_USAGE    GetUsage(
                        const unsigned int number,
                        const SHADER_CHANNEL channel ) const;

    unsigned int           GetUsageIndex(
                        const unsigned int number,
                        const SHADER_CHANNEL channel ) const;

    SHADER_INTERPOLATION_MODE   GetInterpolationMode(
                                    const unsigned int number ) const;

    bool            IsIndexed(
                        const unsigned int number ) const;

    const   SShaderInputDeclType& GetShaderInputDecl(unsigned int number) const;

    bool    HasIndexing( void ) const;

    void    SetMaxIndexedInputRegisterNum( const unsigned int number );
    void    SetMinIndexedInputRegisterNum( const unsigned int number );
    void    SetNumIndexedInputRegisters( const unsigned int number ); 

    unsigned int   GetMinIndexedInputRegisterNum( void ) const;
    unsigned int   GetMaxIndexedInputRegisterNum( void ) const; 
    unsigned int   GetNumIndexedInputRegisters( void ) const; 

    inline ShaderRegisterIndexType GetInstanceIDRegisterNum( void ) const;
    inline ShaderRegisterIndexType GetVertexIDRegisterNum( void ) const;

    virtual void    Compress( void ); 

    SShaderInputDeclType GetInputDeclElement( const unsigned int index ) const;

    unsigned int GetInputDeclSize( void ) const;

    bool IsValid( void ) const;

    inline bool HasFogFactor( void ) const;

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );


protected:
    CShaderInputDecl( const unsigned int maxRegisters );
    virtual ~CShaderInputDecl( void );

    virtual ErrorCode  Initialize( void );

    iSTD::CArray<SShaderInputDeclType,IGC::CAllocator>*  m_pInputDecl;

    bool    m_HasIndexing;
    bool    m_HasFogFactor;

    ShaderRegisterIndexType m_InstanceIDRegisterNum;
    ShaderRegisterIndexType m_VertexIDRegisterNum;

    unsigned int   m_MaxIndexedInputRegisterNum;
    unsigned int   m_MinIndexedInputRegisterNum;
    unsigned int   m_NumIndexedInputRegisters;

private:
    CShaderInputDecl(const CShaderInputDecl&);
    void operator=(const CShaderInputDecl&);
};

/*****************************************************************************\

Function:
    CShaderInputDecl::HasFogFactor

Description:
    Returns true if one of the channels of one of the input declerations
    has usage of FOGFACTOR or FOGCOORDINATE.

Input:
    None

Output:
    bool

\*****************************************************************************/
inline bool CShaderInputDecl::HasFogFactor( void ) const
{
    return m_HasFogFactor;
}

/*****************************************************************************\

Function:
    CShaderInputDecl::GetInstanceIDRegisterNum

Description:
    Returns the register index which has usage SHADER_USAGE_INSTANCE_ID or
    SHADER_REGISTER_INDEX_NONE if no such register exist.

Input:
    None

Output:
    ShaderRegisterIndexType

\*****************************************************************************/
inline ShaderRegisterIndexType CShaderInputDecl::GetInstanceIDRegisterNum( void ) const
{
    return m_InstanceIDRegisterNum;
}

/*****************************************************************************\

Function:
    CShaderInputDecl::GetVertexIDRegisterNum

Description:
    Returns the register index which has usage SHADER_USAGE_VERTEX_ID or
    SHADER_REGISTER_INDEX_NONE if no such register exist.

Input:
    None

Output:
    ShaderRegisterIndexType

\*****************************************************************************/
inline ShaderRegisterIndexType CShaderInputDecl::GetVertexIDRegisterNum( void ) const
{
    return m_VertexIDRegisterNum;
}

/*****************************************************************************\

Class:
    CShaderOutputDecl

Description:

\*****************************************************************************/
class CShaderOutputDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderOutputDecl*& pShaderDecl );
    static void     Delete( CShaderOutputDecl*& pShaderDecl );

    void    SetMask(
                const unsigned int number,
                const SHADER_MASK mask );

    void    SetUsage(
                const unsigned int number,
                const SHADER_CHANNEL channel,
                const SHADER_USAGE usage,
                const unsigned int usageIndex );

    void    SetIndexed(
                const unsigned int number,
                const bool indexed );

    SHADER_MASK     GetMask(
                        const unsigned int number ) const;

    SHADER_USAGE    GetUsage(
                        const unsigned int number,
                        const SHADER_CHANNEL channel ) const;

    unsigned int           GetUsageIndex(
                        const unsigned int number,
                        const SHADER_CHANNEL channel ) const;

    bool            IsIndexed(
                        const unsigned int number ) const;

    const   SShaderOutputDeclType& GetShaderOutputDecl(unsigned int number) const;

    bool    HasIndexing( void ) const;

    void    SetMaxIndexedOutputRegisterNum( const unsigned int number );
    void    SetMinIndexedOutputRegisterNum( const unsigned int number );
    void    SetNumIndexedOutputRegisters( const unsigned int number );
    
    unsigned int   GetMaxIndexedOutputRegisterNum( void ) const;
    unsigned int   GetMinIndexedOutputRegisterNum( void ) const;
    unsigned int   GetNumIndexedOutputRegisters( void ) const;

    void    SetActualOutputRegistersCount( const unsigned int number );
    void	SetAdditionalOutputsCount( const unsigned int number );
    void	SetActualOutputIndexNumber( const unsigned int index, const unsigned int number );
    void	SetAdditionalOutputIndexNumber( const unsigned int index, const unsigned int number );

    unsigned int   GetActualOutputRegistersCount( void ) const;
    unsigned int   GetAdditionalOutputsCount( void ) const;
    unsigned int   GetActualOutputIndexNumber( const unsigned int index ) const;
    unsigned int   GetAdditionalOutputIndexNumber( const unsigned int index ) const;

    void GetListOfDeclared( const unsigned int** listOfDeclared, unsigned int &listSize, USC_CLIENT_TYPE clientType, unsigned char renderTargetPropagationMask ) const;

    virtual void    Compress( void );

    SShaderOutputDeclType GetOutputDeclElement( const unsigned int index ) const;

    unsigned int GetOutputDeclSize( void ) const;

    bool IsValid( void ) const;

    bool     GetInvariantEnable( const unsigned int number ) const;
    void     SetInvariantEnable( const unsigned int number, const bool invariant );

    inline bool HasPointSize( void ) const;
    inline const ShaderRegisterIndexType* GetTextureCoordinateToRegisterNumMap( void ) const;
    inline const unsigned int* GetActualOutputsArray( void ) const;
    inline const unsigned int* GetAdditionalOutputsArray( void ) const;
    inline ShaderRegisterIndexType GetFogCoordinateOrFactorRegisterNum( void ) const;
    inline ShaderRegisterIndexType GetSecondaryColorRegisterNum( void ) const;

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );


protected:
    CShaderOutputDecl( const unsigned int maxRegisters );
    virtual ~CShaderOutputDecl( void );

    virtual ErrorCode  Initialize( void );

    iSTD::CArray<SShaderOutputDeclType,IGC::CAllocator>* m_pOutputDecl;

    bool    m_HasIndexing;

    unsigned int   m_MaxIndexedOutputRegisterNum;
    unsigned int   m_MinIndexedOutputRegisterNum;
    unsigned int   m_NumIndexedOutputRegisters;
    
    unsigned int   m_ActualOutputRegisters[ NUM_PSHADER_OUTPUT_REGISTERS ];
    unsigned int   m_ActualOutputRegistersCount;
    unsigned int   m_AdditionalOutputRegisters[ NUM_PSHADER_OUTPUT_COLOR_REGISTERS ];
    unsigned int   m_AdditionalOutputsCount;
    
    bool    m_HasPointSize;
    ShaderRegisterIndexType m_texCoordRegisterNum[ NUM_TEXTURE_COORDINATES ];
    ShaderRegisterIndexType m_fogCoordRegisterNum;
    ShaderRegisterIndexType m_secondaryColorRegisterNum;

private:
    CShaderOutputDecl(const CShaderOutputDecl&);
    void operator=(const CShaderOutputDecl&);
};

/*****************************************************************************\

Function:
    CShaderOutputDecl::HasPointSize

Description:
    Returns true if one of the channels of one of the output declerations
    has usage of POINT_SIZE.

Input:
    None

Output:
    bool

\*****************************************************************************/
inline bool CShaderOutputDecl::HasPointSize( void ) const
{
    return m_HasPointSize;
}

/*****************************************************************************\

Function:
    CShaderOutputDecl::GetTextureCoordinateToRegisterNumMap

Description:
    Returns pointer to integer array of size MAX_TEXTURE_COORDINATES,
    each element in the array holds SHADER_REGISTER_INDEX_NONE if the
    corresponding texture coordinate is not defined used in any of the output registers,
    otherwise the register number of the texcoord.

Input:
    None

Output:
    ShaderRegisterIndexType*

\*****************************************************************************/
inline const ShaderRegisterIndexType*  CShaderOutputDecl::GetTextureCoordinateToRegisterNumMap( void ) const
{
    return m_texCoordRegisterNum;
}


inline const unsigned int* CShaderOutputDecl::GetActualOutputsArray( void ) const
{
    return m_ActualOutputRegisters;
}

inline const unsigned int* CShaderOutputDecl::GetAdditionalOutputsArray( void ) const
{
    return m_AdditionalOutputRegisters;
}

/*****************************************************************************\

Function:
    CShaderOutputDecl::GetFogCoordinateOrFactorRegisterNum

Description:
    Returns the first register number which has usage of fog coordinate or fog factor.
    If no such register exist, -1 is returned.

Input:
    None

Output:
    int

\*****************************************************************************/
inline ShaderRegisterIndexType CShaderOutputDecl::GetFogCoordinateOrFactorRegisterNum( void ) const
{
    return m_fogCoordRegisterNum;
}

/*****************************************************************************\

Function:
    CShaderOutputDecl::GetSecondaryColorRegisterNum

Description:
    Returns the first register number which has usage secondary color.
    If no such register exist, -1 is returned.

Input:
    None

Output:
    int

\*****************************************************************************/
inline ShaderRegisterIndexType CShaderOutputDecl::GetSecondaryColorRegisterNum( void ) const
{
    return m_secondaryColorRegisterNum;
}

/*****************************************************************************\

Class:
    CShaderIndexedTemporaryArrayDecl

Description:

\*****************************************************************************/
class CShaderIndexedTemporaryArrayDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderIndexedTemporaryArrayDecl*& pShaderDecl );
    static void     Delete( CShaderIndexedTemporaryArrayDecl*& pShaderDecl );

    void    Setup(
                const unsigned int number,
                const unsigned int size );
    void    SetSize(
                const unsigned int number,
                const unsigned int size );
    void    SetCached(
                const unsigned int number,
                const SIMD_MODE simdMode );
    void    SetReadChannels(
                const unsigned int number,
                const SShaderWriteMask mask );
    void    SetHasIndirectRegisterWrites(
                const unsigned int number );

    unsigned int     GetSize(
                         const unsigned int number ) const;
    bool             IsCached(
                         const unsigned int number,
                         const SIMD_MODE simdMode ) const;    
    bool             HasCachedTemps( void ) const;
    SShaderWriteMask GetReadChannels(
                         const unsigned int number ) const;
    unsigned int     GetNumReadChannels(
                         const unsigned int number ) const;
    SHADER_CHANNEL   GetFirstReadChannel(
                         const unsigned int number ) const;
    bool             HasIndirectRegisterWrites(
                         const unsigned int number ) const;    

    virtual void    Compress( void );

    SIndexedTempDeclType GetIndexedTemporaryArrayDeclElement( const unsigned int index ) const;

    unsigned int GetIndexedTemporaryArrayDeclSize( void ) const;

    bool IsValid( void ) const;

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );


protected:
    CShaderIndexedTemporaryArrayDecl( const unsigned int maxRegisters );
    virtual ~CShaderIndexedTemporaryArrayDecl( void );

    virtual ErrorCode  Initialize( void );

    const SIndexedTempDeclType* GetDeclElement( const unsigned int number ) const;
    void                        SetDeclElement( const unsigned int number,
                                                const SIndexedTempDeclType& decl );

    iSTD::CArray<SIndexedTempDeclType,IGC::CAllocator>* m_pIndexedTemporaryArrayDecl;

private:
    CShaderIndexedTemporaryArrayDecl(const CShaderIndexedTemporaryArrayDecl&);
    void operator=(const CShaderIndexedTemporaryArrayDecl&);
    bool m_HasCachedTemps;
};

/*****************************************************************************\

Class:
    CShaderInterfaceDecl

Description:

\*****************************************************************************/
class CShaderInterfaceDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderInterfaceDecl*& pShaderDecl );

    static void     Delete( CShaderInterfaceDecl*& pShaderDecl );

    virtual void    Compress( void );

    bool    SetInterface( const unsigned int number,
                        const unsigned int arraySize,
                        const unsigned int numCallSites,
                        const unsigned int numFunctionTables,
                        const unsigned int*& functionTables,
                        const unsigned int constantBufferOffset,
                        SShaderInterfaceDeclType& iface );

    bool    GetInterface( const unsigned int number,
                        SShaderInterfaceDeclType& iface ) const;

    SShaderInterfaceDeclType GetIfaceDeclElement( const unsigned int index ) const;

    bool IsValid( void ) const;

    // Throwing assert and returning error, since we have to declare interface manually from CShader
    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );

protected:
    CShaderInterfaceDecl( const unsigned int maxRegisters );

    virtual ~CShaderInterfaceDecl( void );

    virtual ErrorCode  Initialize( void );

    iSTD::CArray<SShaderInterfaceDeclType,IGC::CAllocator>* m_pIfaceDecls;    
};

/*****************************************************************************\

Class:
    CShaderFunctionTableDecl

Description:

\*****************************************************************************/
class CShaderFunctionTableDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderFunctionTableDecl*& pShaderDecl );

    static void     Delete( CShaderFunctionTableDecl*& pShaderDecl );

    virtual void    Compress( void );

    bool    SetFunctionTable( const unsigned int number,
                              const unsigned int numFunctionBodies,
                              const unsigned int* pFunctionBodies );

    bool    GetFunctionTable( const unsigned int number,
                              SShaderFunctionTableDeclType &ftDecl ) const;

    bool    GetCallSite( const unsigned int ftID,
                         const unsigned int fbID,
                         unsigned int& callSite ) const;

    bool    GetCallOffsets( const unsigned int ftID,
                            const unsigned int callSite,
                            SVFuncCallOffsets& offsets) const;

    SShaderFunctionTableDeclType GetFunctionTablesElement( const unsigned int index ) const;

    unsigned int GetFunctionTablesArraySize( void ) const;

    bool IsValid( void ) const;

    // Throwing assert and returning error, since we have to declare interface manually from CShader
    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );

protected:
    CShaderFunctionTableDecl( const unsigned int maxRegisters );

    virtual ~CShaderFunctionTableDecl( void );

    virtual ErrorCode  Initialize( void );
    virtual bool    Resize( unsigned int number );

    iSTD::CArray<SShaderFunctionTableDeclType,IGC::CAllocator>* m_pFunctionTables;
};

/*****************************************************************************\

Class:
    CShaderFunctionBodyDecl

Description:

\*****************************************************************************/
class CShaderFunctionBodyDecl :
    public CShaderFiniteDecl
{
public:
    static ErrorCode   Create( 
                        const unsigned int maxRegisters, 
                        CShaderFunctionBodyDecl*& pShaderDecl );

    static void     Delete( CShaderFunctionBodyDecl*& pShaderDecl );

    template<typename TOpType>
    ErrorCode  Process( const CShaderDecl& src, unsigned char*& pStream, unsigned int& size );

protected:
    CShaderFunctionBodyDecl( const unsigned int maxRegisters );

    virtual ~CShaderFunctionBodyDecl( void );
};

} // namespace USC
