Source/System/State/OpenGL/OSGTwoSidedLightingChunk.cpp

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  37 \*---------------------------------------------------------------------------*/
  38
  39 #include <cstdlib>
  40 #include <cstdio>
  41
  42 #include "OSGConfig.h"
  43
  44 #include "OSGGL.h"
  45
  46 #include "OSGTwoSidedLightingChunk.h"
  47 #include "OSGWindow.h"
  48 #include "OSGCamera.h"
  49
  50 OSG_USING_NAMESPACE
  51
  52 // Documentation for this class is emited in the
  53 // OSGTwoSidedLightingChunkBase.cpp file.
  54 // To modify it, please change the .fcd file (OSGTwoSidedLightingChunk.fcd) and
  55 // regenerate the base file.
  56
  57 /***************************************************************************\
  58  *                           Class variables                               *
  59 \***************************************************************************/
  60
  61 StateChunkClass TwoSidedLightingChunk::_class("TwoSidedLighting", 1, 100);
  62
  63 /***************************************************************************\
  64  *                           Class methods                                 *
  65 \***************************************************************************/
  66
  67 void TwoSidedLightingChunk::initMethod(InitPhase ePhase)
  68 {
  69     Inherited::initMethod(ePhase);
  70 }
  71
  72 /***************************************************************************\
  73  *                           Instance methods                              *
  74 \***************************************************************************/
  75
  76 /*-------------------------------------------------------------------------*\
  77  -  private                                                                 -
  78 \*-------------------------------------------------------------------------*/
  79
  80 TwoSidedLightingChunk::TwoSidedLightingChunk(void) :
  81      Inherited(        ),
  82     _state    (GL_FALSE)
  83 {
  84 }
  85
  86 TwoSidedLightingChunk::TwoSidedLightingChunk(
  87     const TwoSidedLightingChunk &source) :
  88
  89     Inherited(source),
  90     _state(source._state)
  91 {
  92 }
  93
  94 TwoSidedLightingChunk::~TwoSidedLightingChunk(void)
  95 {
  96 }
  97
  98 /*------------------------- Chunk Class Access ---------------------------*/
  99
 100 const StateChunkClass *TwoSidedLightingChunk::getClass(void) const
 101 {
 102     return &_class;
 103 }
 104
 105 /*------------------------------- Sync -----------------------------------*/
 106
 107 void TwoSidedLightingChunk::changed(ConstFieldMaskArg whichField,
 108                                     UInt32            origin,
 109                                     BitVector         details)
 110 {
 111     Inherited::changed(whichField, origin, details);
 112 }
 113
 114 /*------------------------------ Output ----------------------------------*/
 115
 116 void TwoSidedLightingChunk::dump(      UInt32    ,
 117                          const BitVector ) const
 118 {
 119     SLOG << "Dump TwoSidedLightingChunk NI" << std::endl;
 120 }
 121
 122 /*------------------------------ State ------------------------------------*/
 123
 124 void TwoSidedLightingChunk::activate (DrawEnv *pEnv, UInt32 idx)
 125 {
 126 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 127     pEnv->incNumChunkChanges();
 128
 129     glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
 130 #else
 131     OSG_ASSERT(false);
 132 #endif
 133 }
 134
 135 void TwoSidedLightingChunk::changeFrom(DrawEnv    *pEnv,
 136                                        StateChunk *old_chunk,
 137                                        UInt32      idx      )
 138 {
 139 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 140     TwoSidedLightingChunk *old =
 141         dynamic_cast<TwoSidedLightingChunk *>(old_chunk);
 142
 143     if(old == NULL)
 144     {
 145         FWARNING(( "TwoSidedLightingChunk::changeFrom: "
 146                    "caught non-TwoSidedLightingChunk!\n"));
 147         return;
 148     }
 149
 150     // TwoSidedLightingChunk didn't change so do nothing.
 151     if(old == this)
 152         return;
 153
 154     pEnv->incNumChunkChanges();
 155
 156     glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
 157 #else
 158     OSG_ASSERT(false);
 159 #endif
 160 }
 161
 162 void TwoSidedLightingChunk::deactivate(DrawEnv *pEnv, UInt32 idx)
 163 {
 164 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 165     glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE);
 166 #else
 167     OSG_ASSERT(false);
 168 #endif
 169 }
 170
 171
 172 /*-------------------------- Comparison -----------------------------------*/
 173
 174 Real32 TwoSidedLightingChunk::switchCost(StateChunk *OSG_CHECK_ARG(chunk))
 175 {
 176     return 0;
 177 }
 178
 179 bool TwoSidedLightingChunk::operator <(const StateChunk &other) const
 180 {
 181     return this < &other;
 182 }
 183
 184 bool TwoSidedLightingChunk::operator ==(const StateChunk &other) const
 185 {
 186     TwoSidedLightingChunk const *tother =
 187                 dynamic_cast<TwoSidedLightingChunk const*>(&other);
 188
 189     if(!tother)
 190         return false;
 191
 192     if(tother == this)
 193         return true;
 194
 195     return true;
 196 }
 197
 198 bool TwoSidedLightingChunk::operator !=(const StateChunk &other) const
 199 {
 200     return !(*this == other);
 201 }