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00001 
+00007 /* Copyright, 2001 Nevrax Ltd.
+00008  *
+00009  * This file is part of NEVRAX NEL.
+00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
+00011  * it under the terms of the GNU General Public License as published by
+00012  * the Free Software Foundation; either version 2, or (at your option)
+00013  * any later version.
+00014 
+00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
+00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
+00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+00018  * General Public License for more details.
+00019 
+00020  * You should have received a copy of the GNU General Public License
+00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
+00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+00023  * MA 02111-1307, USA.
+00024  */
+00025 
+00026 #include "std3d.h"
+00027 
+00028 #include "3d/landscapevb_info.h"
+00029 #include "3d/vertex_buffer.h"
+00030 #include "3d/vertex_buffer_hard.h"
+00031 #include "3d/landscapevb_allocator.h"
+00032 
+00033 
+00034 namespace NL3D 
+00035 {
+00036 
+00037 
+00038 // ***************************************************************************
+00039 // ***************************************************************************
+00040 // VertexBufferInfo.
+00041 // ***************************************************************************
+00042 // ***************************************************************************
+00043 
+00044 
+00045 // ***************************************************************************
+00046 void            CFarVertexBufferInfo::setupNullPointers()
+00047 {
+00048         VertexCoordPointer= NULL;
+00049         TexCoordPointer0= NULL;
+00050         TexCoordPointer1= NULL;
+00051         ColorPointer= NULL;
+00052         GeomInfoPointer= NULL;
+00053         DeltaPosPointer= NULL;
+00054         AlphaInfoPointer= NULL;
+00055 }
+00056 
+00057 
+00058 // ***************************************************************************
+00059 void            CFarVertexBufferInfo::setupPointersForVertexProgram()
+00060 {
+00061         // see CLandscapeVBAllocator for program definition.
+00062         uint8   *vcoord= (uint8*)VertexCoordPointer;
+00063 
+00064         TexCoordPointer0= vcoord + TexCoordOff0;
+00065         TexCoordPointer1= vcoord + TexCoordOff1;
+00066         GeomInfoPointer= vcoord + GeomInfoOff;                  
+00067         DeltaPosPointer= vcoord + DeltaPosOff;
+00068         AlphaInfoPointer= vcoord + AlphaInfoOff;
+00069 }
+00070 
+00071 
+00072 // ***************************************************************************
+00073 void            CFarVertexBufferInfo::setupVertexBuffer(CVertexBuffer &vb, bool forVertexProgram)
+00074 {
+00075         VertexFormat= vb.getVertexFormat();
+00076         VertexSize= vb.getVertexSize();
+00077         NumVertices= vb.getNumVertices();
+00078 
+00079         if(NumVertices==0)
+00080         {
+00081                 setupNullPointers();
+00082                 return;
+00083         }
+00084 
+00085         VertexCoordPointer= vb.getVertexCoordPointer();
+00086 
+00087         if(forVertexProgram)
+00088         {
+00089                 // With VertexCoordPointer setuped, init for VP.
+00090                 TexCoordOff0= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX0);                              // v[8]= Tex0.
+00091                 TexCoordOff1= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX1);                              // v[9]= Tex1.
+00092                 GeomInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                   // v[10]= GeomInfos.
+00093                 DeltaPosOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                   // v[11]= EndPos-StartPos
+00094                 // Init Alpha Infos only if enabled (enabled if Value 5 are).
+00095                 AlphaInfoOff= 0;
+00096                 if( vb.getVertexFormat() & (1<<NL3D_LANDSCAPE_VPPOS_ALPHAINFO) )
+00097                         AlphaInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_ALPHAINFO);         // v[12]= AlphaInfos
+00098 
+00099                 // update Ptrs.
+00100                 setupPointersForVertexProgram();
+00101         }
+00102         else
+00103         {
+00104                 TexCoordOff0= vb.getTexCoordOff(0);
+00105                 TexCoordOff1= vb.getTexCoordOff(1);
+00106                 TexCoordPointer0= vb.getTexCoordPointer(0, 0);
+00107                 TexCoordPointer1= vb.getTexCoordPointer(0, 1);
+00108 
+00109                 // In Far0, we don't have Color component.
+00110                 if(VertexFormat & CVertexBuffer::PrimaryColorFlag)
+00111                 {
+00112                         ColorOff= vb.getColorOff();
+00113                         ColorPointer= vb.getColorPointer();
+00114                 }
+00115                 else
+00116                 {
+00117                         ColorOff= 0;
+00118                         ColorPointer= NULL;
+00119                 }
+00120         }
+00121 
+00122 }
+00123 // ***************************************************************************
+00124 void            CFarVertexBufferInfo::setupVertexBufferHard(IVertexBufferHard &vb, void *vcoord, bool forVertexProgram)
+00125 {
+00126         VertexFormat= vb.getVertexFormat();
+00127         VertexSize= vb.getVertexSize();
+00128         NumVertices= vb.getNumVertices();
+00129 
+00130         if(NumVertices==0)
+00131         {
+00132                 setupNullPointers();
+00133                 return;
+00134         }
+00135 
+00136         VertexCoordPointer= vcoord;
+00137 
+00138         if(forVertexProgram)
+00139         {
+00140                 // With VertexCoordPointer setuped, init for VP.
+00141                 TexCoordOff0= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_TEX0);                                // v[8]= Tex0.
+00142                 TexCoordOff1= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_TEX1);                                // v[9]= Tex1.
+00143                 GeomInfoOff= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                             // v[10]= GeomInfos.
+00144                 DeltaPosOff= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                             // v[11]= EndPos-StartPos
+00145                 // Init Alpha Infos only if enabled (enabled if Value 5 are).
+00146                 AlphaInfoOff= 0;
+00147                 if( vb.getVertexFormat() & (1<<NL3D_LANDSCAPE_VPPOS_ALPHAINFO) )
+00148                         AlphaInfoOff= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_ALPHAINFO);           // v[12]= AlphaInfos
+00149 
+00150                 // update Ptrs.
+00151                 setupPointersForVertexProgram();
+00152         }
+00153         else
+00154         {
+00155                 TexCoordOff0= vb.getValueOff (CVertexBuffer::TexCoord0);
+00156                 TexCoordOff1= vb.getValueOff (CVertexBuffer::TexCoord1);
+00157                 TexCoordPointer0= (uint8*)vcoord + TexCoordOff0;
+00158                 TexCoordPointer1= (uint8*)vcoord + TexCoordOff1;
+00159 
+00160                 // In Far0, we don't have Color component.
+00161                 if(VertexFormat & CVertexBuffer::PrimaryColorFlag)
+00162                 {
+00163                         ColorOff= vb.getValueOff (CVertexBuffer::PrimaryColor);
+00164                         ColorPointer= (uint8*)vcoord + ColorOff;
+00165                 }
+00166                 else
+00167                 {
+00168                         ColorOff= 0;
+00169                         ColorPointer= NULL;
+00170                 }
+00171         }
+00172 }
+00173 
+00174 
+00175 // ***************************************************************************
+00176 void            CNearVertexBufferInfo::setupNullPointers()
+00177 {
+00178         VertexCoordPointer= NULL;
+00179         TexCoordPointer0= NULL;
+00180         TexCoordPointer1= NULL;
+00181         TexCoordPointer2= NULL;
+00182         GeomInfoPointer= NULL;
+00183         DeltaPosPointer= NULL;
+00184 }
+00185 
+00186 
+00187 // ***************************************************************************
+00188 void            CNearVertexBufferInfo::setupPointersForVertexProgram()
+00189 {
+00190         // see CLandscapeVBAllocator for program definition.
+00191         uint8   *vcoord= (uint8*)VertexCoordPointer;
+00192 
+00193         TexCoordPointer0= vcoord + TexCoordOff0;
+00194         TexCoordPointer1= vcoord + TexCoordOff1;
+00195         TexCoordPointer2= vcoord + TexCoordOff2;
+00196         GeomInfoPointer= vcoord + GeomInfoOff;                  
+00197         DeltaPosPointer= vcoord + DeltaPosOff;
+00198 
+00199 }
+00200 
+00201 
+00202 // ***************************************************************************
+00203 void            CNearVertexBufferInfo::setupVertexBuffer(CVertexBuffer &vb, bool forVertexProgram)
+00204 {
+00205         VertexFormat= vb.getVertexFormat();
+00206         VertexSize= vb.getVertexSize();
+00207         NumVertices= vb.getNumVertices();
+00208 
+00209         if(NumVertices==0)
+00210         {
+00211                 setupNullPointers();
+00212                 return;
+00213         }
+00214 
+00215         VertexCoordPointer= vb.getVertexCoordPointer();
+00216 
+00217         if(forVertexProgram)
+00218         {
+00219                 // With VertexCoordPointer setuped, init for VP.
+00220                 TexCoordOff0= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX0);                              // v[8]= Tex0.
+00221                 TexCoordOff1= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX1);                              // v[9]= Tex1.
+00222                 TexCoordOff2= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_TEX2);                              // v[13]= Tex1.
+00223                 GeomInfoOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                   // v[10]= GeomInfos.
+00224                 DeltaPosOff= vb.getValueOffEx(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                   // v[11]= EndPos-StartPos
+00225 
+00226                 // update Ptrs.
+00227                 setupPointersForVertexProgram();
+00228         }
+00229         else
+00230         {
+00231                 TexCoordPointer0= vb.getTexCoordPointer(0, 0);
+00232                 TexCoordPointer1= vb.getTexCoordPointer(0, 1);
+00233                 TexCoordPointer2= vb.getTexCoordPointer(0, 2);
+00234 
+00235                 TexCoordOff0= vb.getTexCoordOff(0);
+00236                 TexCoordOff1= vb.getTexCoordOff(1);
+00237                 TexCoordOff2= vb.getTexCoordOff(2);
+00238         }
+00239 }
+00240 // ***************************************************************************
+00241 void            CNearVertexBufferInfo::setupVertexBufferHard(IVertexBufferHard &vb, void *vcoord, bool forVertexProgram)
+00242 {
+00243         VertexFormat= vb.getVertexFormat();
+00244         VertexSize= vb.getVertexSize();
+00245         NumVertices= vb.getNumVertices();
+00246 
+00247         if(NumVertices==0)
+00248         {
+00249                 setupNullPointers();
+00250                 return;
+00251         }
+00252 
+00253         VertexCoordPointer= vcoord;
+00254 
+00255         if(forVertexProgram)
+00256         {
+00257                 // With VertexCoordPointer setuped, init for VP.
+00258                 TexCoordOff0= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_TEX0);                                // v[8]= Tex0.
+00259                 TexCoordOff1= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_TEX1);                                // v[9]= Tex1.
+00260                 TexCoordOff2= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_TEX2);                                // v[9]= Tex1.
+00261                 GeomInfoOff= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_GEOMINFO);                             // v[10]= GeomInfos.
+00262                 DeltaPosOff= vb.getValueOff(NL3D_LANDSCAPE_VPPOS_DELTAPOS);                             // v[11]= EndPos-StartPos
+00263 
+00264                 // update Ptrs.
+00265                 setupPointersForVertexProgram();
+00266         }
+00267         else
+00268         {
+00269                 TexCoordPointer0= (uint8*)vcoord + vb.getValueOff (CVertexBuffer::TexCoord0);
+00270                 TexCoordPointer1= (uint8*)vcoord + vb.getValueOff (CVertexBuffer::TexCoord1);
+00271                 TexCoordPointer2= (uint8*)vcoord + vb.getValueOff (CVertexBuffer::TexCoord2);
+00272 
+00273                 TexCoordOff0= vb.getValueOff (CVertexBuffer::TexCoord0);
+00274                 TexCoordOff1= vb.getValueOff (CVertexBuffer::TexCoord1);
+00275                 TexCoordOff2= vb.getValueOff (CVertexBuffer::TexCoord2);
+00276         }
+00277 }
+00278 
+00279 
+00280 } // NL3D
+
landscapevb_info.cpp
