F:/My Projects/LSEngine/Modules/LSGraphicsLib/Src/DirectX/LSGDirectX10VertexBuffer.h

#ifndef __LSG_DIRECTX10VERTEXBUFFER_H__
#define __LSG_DIRECTX10VERTEXBUFFER_H__

#include "../LSGGraphicsLib.h"

#ifdef LSG_DX10

#include "../VertexBuffer/LSGVertexBufferBase.h"
#include "Vector/LSTLVectorPoD.h"

namespace lsg {

        class CDirectX10VertexBuffer : public CVertexBufferBase {
        public :
                // == Various constructors.
                LSE_CALLCTOR                                                                    CDirectX10VertexBuffer();
                LSE_CALLCTOR                                                                    ~CDirectX10VertexBuffer();


                // == Functions.
                LSE_INLINE D3D10_PRIMITIVE_TOPOLOGY LSE_CALL    GetDirectX10PrimitiveType() const;


        protected :
                // == Types.
                typedef struct LSG_DIRECTX10_PREFINED_VERT_ATT {
                        LSUINT32                                                                        ui32Mask;

                        LSUINT32                                                                        ui32Size;
                } * LPLSG_DIRECTX10_PREFINED_VERT_ATT, * const LPCLSG_DIRECTX10_PREFINED_VERT_ATT;

                typedef struct LSG_DIRECTX10_LAST_VERT_DECLS {
                        LSUINT32                                                                        ui32StreamIds[LSG_VBM_MAX_STREAMS];

                        ID3D10InputLayout *                                                     pilInputLayout;


                        // == Various constructors.
                        LSE_CALLCTOR                                                            LSG_DIRECTX10_LAST_VERT_DECLS();
                        LSE_CALLCTOR                                                            ~LSG_DIRECTX10_LAST_VERT_DECLS();
                } * LPLSG_DIRECTX10_LAST_VERT_DECLS, * const LPCLSG_DIRECTX10_LAST_VERT_DECLS;


                // == Members.
                ID3D10Buffer *                                                                  m_pbApiVertexBuffer;

                LSBOOL                                                                                  m_bFakeAlpha[LSG_VBM_MAX_USAGES];

                LSUINT32                                                                                m_ui32VertexDeclLength;

                CVectorPoD<LSG_DIRECTX10_LAST_VERT_DECLS, LSUINT8, 1UL>
                                                                                                                m_vVertDeclRecord;

                D3D10_INPUT_ELEMENT_DESC *                                              m_piedVertexDeclaration;

                D3D10_PRIMITIVE_TOPOLOGY                                                m_ptPrimitiveType;

                static LSG_DIRECTX10_PREFINED_VERT_ATT                  m_dpvaVertices[];


                // == Functions.
                LSG_VB_INTERFACE LSBOOL LSE_CALL                                CreateApiVertexBuffer();

                LSG_VB_INTERFACE LSVOID LSE_CALL                                ResetApi();

                LSVOID LSE_CALL                                                                 UnLockApi();
                
                LSG_VB_INTERFACE LSVOID LSE_CALL                                AdjustInputsToApi( LSG_VB_CONTENTS &_vcContents, LSUINT16 &_ui16UsageAndAccess );

                LSG_VB_INTERFACE LSUINT32 LSE_CALL                              GetVertexAttributeSizeApi( const LSG_VB_CONTENTS &_vcContents );

                LSG_VB_INTERFACE LSBOOL LSE_CALL                                SetStreamApi( LSUINT32 _ui32Stream, LSUINT32 _ui32Offset, LSUINT32 _ui32ElementsSize );

                LSG_VB_INTERFACE LSBOOL LSE_CALL                                CanBufferBeDestroyedApi( LSUINT32 _ui32Elements, LSUINT32 _ui32ElementsSize, LSUINT32 _ui32UsageAndAccess );

                LSG_VB_INTERFACE LSUINT32 LSE_CALL                              RawColorToApiColor( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSVOID * _pvBuffer );

                LSG_VB_INTERFACE LSUINT32 LSE_CALL                              RawColorToApiColor( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSREAL _fA, LSVOID * _pvBuffer );

                LSG_VB_INTERFACE LSVOID LSE_CALL                                SetColorApi( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSVOID * _pvBuffer );

                LSG_VB_INTERFACE LSVOID LSE_CALL                                SetAlphaApi( LSREAL _fA, LSVOID * _pvBuffer );

                LSG_VB_INTERFACE LSVOID LSE_CALL                                PrepareToRenderApi();

                LSG_VB_INTERFACE LSVOID LSE_CALL                                EndRenderApi();

                LSG_VB_INTERFACE LSVOID LSE_CALL                                RenderApi( LSUINT32 _ui32TotalPrimitives );

                LSUINT32 LSE_CALL                                                               BestStrideApi( LSUINT32 _ui32Size );


        private :
                LSBOOL LSE_CALL                                                                 GenerateVertexDeclaration( const LSG_VB_CONTENTS &_vcContents );
        };


        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // DEFINITIONS
        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // == Functions.
        LSE_INLINE D3D10_PRIMITIVE_TOPOLOGY LSE_CALL CDirectX10VertexBuffer::GetDirectX10PrimitiveType() const {
                return m_ptPrimitiveType;
        }

        LSE_INLINE LSUINT32 LSE_CALL CDirectX10VertexBuffer::RawColorToApiColor( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSVOID * _pvBuffer ) {
                LSUINT32 * pui32Dest = static_cast<LSUINT32 *>(_pvBuffer);
                // 0xAARRGGBB.
                (*pui32Dest) = 0xFF |                                                                                                                                                                                   // Alpha.
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fR, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 16) |       // Red.
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fG, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 8) |        // Green.
                        static_cast<LSUINT32>((CMathLib::Clamp( _fB, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0)));                        // Blue.
                return sizeof( LSUINT32 );
        }

        LSE_INLINE LSUINT32 LSE_CALL CDirectX10VertexBuffer::RawColorToApiColor( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSREAL _fA, LSVOID * _pvBuffer ) {
                LSUINT32 * pui32Dest = static_cast<LSUINT32 *>(_pvBuffer);
                // 0xAARRGGBB.
                (*pui32Dest) =
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fA, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 24) |       // Alpha.
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fR, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 16) |       // Red.
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fG, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 8) |        // Green.
                        static_cast<LSUINT32>((CMathLib::Clamp( _fB, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0)));                        // Blue.
                return sizeof( LSUINT32 );
        }

        LSE_INLINE LSVOID LSE_CALL CDirectX10VertexBuffer::SetColorApi( LSREAL _fR, LSREAL _fG, LSREAL _fB, LSVOID * _pvBuffer ) {
                LSUINT32 * pui32Dest = static_cast<LSUINT32 *>(_pvBuffer);
                LSUINT32 ui32Temp = 
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fR, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 16) |       // Red.
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fG, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 8) |        // Green.
                        static_cast<LSUINT32>((CMathLib::Clamp( _fB, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0)));                        // Blue.
                ui32Temp |= (*pui32Dest) & 0xFF000000;  // Keep the existing alpha.
                (*pui32Dest) = ui32Temp;
        }

        LSE_INLINE LSVOID LSE_CALL CDirectX10VertexBuffer::SetAlphaApi( LSREAL _fA, LSVOID * _pvBuffer ) {
                LSUINT32 * pui32Dest = static_cast<LSUINT32 *>(_pvBuffer);
                LSUINT32 ui32Temp = 
                        (static_cast<LSUINT32>((CMathLib::Clamp( _fA, LSM_ZERO, LSM_ONE ) * static_cast<LSREAL>(255.0))) << 24);        // Alpha.
                ui32Temp |= (*pui32Dest) & 0x00FFFFFF;  // Keep the existing color.
                (*pui32Dest) = ui32Temp;
        }

}       // namespace lsg

#endif  // #ifdef LSG_DX10

#endif  // __LSG_DIRECTX10VERTEXBUFFER_H__