F:/My Projects/LSEngine/Modules/LSGraphicsLib/Src/VertexBuffer/LSGVertexBufferBase.h

#ifndef __LSG_VERTEXBUFFERBASE_H__
#define __LSG_VERTEXBUFFERBASE_H__

#include "../LSGGraphicsLib.h"
#include "Allocator/LSTLAllocator.h"

namespace lsg {

        // == Enumerations.
        enum LSG_VERTEX_BUFFER_USAGE_TYPES {
                LSG_VBUT_SETONLY                                                                = (1 << 0),                                                             
                LSG_VBUT_STANDARD                                                               = (1 << 1),                                                             
                LSG_VBUT_DYNAMIC                                                                = (1 << 2),                                                             
                LSG_VBUT_MASK                                                                   = (LSG_VBUT_SETONLY | LSG_VBUT_STANDARD | LSG_VBUT_DYNAMIC),
                LSG_VBUT_FORCE_DWORD                                                    = 0x7FFFFFFF
        };

        enum LSG_VERTEX_BUFFER_ACCESS_FLAGS {
                LSG_VBAF_READ_ONLY                                                              = (1 << 7),                                                             
                LSG_VBAF_READ_WRITE                                                             = (1 << 8),                                                             
                LSG_VBAF_MASK                                                                   = (LSG_VBAF_READ_ONLY | LSG_VBAF_READ_WRITE),
                LSG_VBAF_FORCE_DWORD                                                    = 0x7FFFFFFF
        };

        enum LSG_VERTEX_BUFFER_PRIMITIVES {
                LSG_VBP_TRIANGLELIST                                                    = (1 << 9),                                                             
                LSG_VBP_TRIANGLESTRIP                                                   = (1 << 10),                                                    
                LSG_VBP_MASK                                                                    = (LSG_VBP_TRIANGLELIST | LSG_VBP_TRIANGLESTRIP),
                LSG_VBP_FORCE_DWORD                                                             = 0x7FFFFFFF
        };

        enum LSG_VERTEX_ATTRIBUTES {
                LSG_VA_POSITION,
                LSG_VA_POSITIONW,
                LSG_VA_NORMAL,
                LSG_VA_COLOR,
                LSG_VA_ALPHA,
                LSG_VA_TEX,
                LSG_VA_FOGCOORD,
                LSG_VA_BINORMAL,
                LSG_VA_TANGENT,
                LSG_VA_BLENDWEIGHT,
                LSG_VA_BLENDINDICES,
                LSG_VA_1FLOAT_TEX,
                LSG_VA_3FLOAT_TEX,
                LSG_VA_4FLOAT_TEX,
                //LSG_VA_1INDEX_TEX,
                //LSG_VA_4INDEX_TEX,

                LSG_VA_FORCE_DWORD                                                              = 0x7FFFFFFF
        };

        enum LSG_VERTEX_BUFFER_METRICS {
                LSG_VBM_MAX_ATTRIBUTES                                                  = 16,
                LSG_VBM_MAX_USAGES                                                              = 16,
                LSG_VBM_MAX_STREAMS                                                             = 16,
        };


        // == Types.
        typedef struct LSG_VB_CONTENTS {
                LSUINT8                                                                                 ui8Array[LSG_VBM_MAX_ATTRIBUTES];

                LSUINT32                                                                                ui32Total;


                // == Various constructors.
                LSE_CALL                                                                                LSG_VB_CONTENTS();
                LSE_CALL                                                                                LSG_VB_CONTENTS( LSUINT8 _ui8Type, LSUINT8 _ui8Stream = 0 );

                // == Operators.
                LSG_VB_CONTENTS & LSE_CALL                                              operator |= ( const LSG_VB_CONTENTS &_vcOther );

                LSG_VB_CONTENTS LSE_CALL                                                operator | ( const LSG_VB_CONTENTS &_vcOther ) const;

                LSUINT32 LSE_CALL                                                               operator [] ( LSUINT32 _ui32Index ) const;

                LSUINT32 LSE_CALL                                                               operator () ( LSUINT32 _ui32Index ) const;

                LSBOOL LSE_CALL                                                                 operator () ( LSUINT32 _ui32Type, LSUINT32 _ui32Stream ) const;

                LSBOOL LSE_CALL                                                                 operator & ( LSUINT32 _ui32Attr ) const;
        } * LPLSG_VB_CONTENTS, * const LPCLSG_VB_CONTENTS;


#ifdef _DEBUG
#define LSG_VB_INTERFACE        virtual
#else   // #ifdef _DEBUG
#define LSG_VB_INTERFACE
#endif  // #ifdef _DEBUG

        class CVertexBufferBase {
                // Rendering of the vertex buffer is handled by CFnd.  This allows the foundation to update its render state
                //      in preparation for the render.
                friend class                                                                    CFnd;
        public :
                // == Various constructors.
                LSE_CALLCTOR                                                                    CVertexBufferBase();
                LSE_CALLCTOR                                                                    ~CVertexBufferBase();


                // == Functions.
                LSVOID LSE_CALL                                                                 Reset();
                
                LSE_INLINE const LSG_VB_CONTENTS & LSE_CALL             Contents() const;

        protected :
                // == Members.
                LSG_VB_CONTENTS                                                                 m_vcContents;

                LSUINT32                                                                                m_ui32Lock;

                LSBOOL                                                                                  m_bFinalized;

                LSUINT16                                                                                m_ui16UsageAndAccess;

                LSUINT16                                                                                m_ui16ElementSize;

                LSUINT32                                                                                m_ui32Stride;

                LSUINT32                                                                                m_ui32Elements;

                LSUINT32                                                                                m_ui32PrimitiveCount;

                LSUINT32                                                                                m_ui32Id;

                CVectorPoD<LSUINT8, LSUINT32, 1024UL>                   m_vData;

                CVectorPoD<LSUINT16, LSUINT8, 1UL>                              m_vAttributeOffsets[LSG_VBM_MAX_ATTRIBUTES];

                static LSUINT32                                                                 m_ui32VertIdCounter;

                static CCriticalSection                                                 m_csCrit;


                // == Functions.
        };


        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // DEFINITIONS
        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // == Functions.
        LSE_INLINE const LSG_VB_CONTENTS & LSE_CALL CVertexBufferBase::Contents() const {
                return m_vcContents;
        }

}       // namespace lsg

#endif  // __LSG_VERTEXBUFFERBASE_H__