Source/System/State/OpenGL/OSGShadeModelChunk.cpp

   1 /*---------------------------------------------------------------------------*\
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  37 \*---------------------------------------------------------------------------*/
  38
  39 //---------------------------------------------------------------------------
  40 //  Includes
  41 //---------------------------------------------------------------------------
  42
  43 #include <stdlib.h>
  44 #include <stdio.h>
  45
  46 #include "OSGConfig.h"
  47
  48 #include "OSGShadeModelChunk.h"
  49 #include "OSGDrawEnv.h"
  50
  51 OSG_BEGIN_NAMESPACE
  52
  53 /***************************************************************************\
  54  *                            Description                                  *
  55 \***************************************************************************/
  56
  57 /*! \class OSG::ShadeModelChunk
  58 ShadeModelChunk controls the shading model used for rendering lines and filled polygons.
  59 */
  60
  61 /***************************************************************************\
  62  *                           Class variables                               *
  63 \***************************************************************************/
  64
  65 StateChunkClass ShadeModelChunk::_class("ShadeModel", 1, 100);
  66
  67 /***************************************************************************\
  68  *                           Class methods                                 *
  69 \***************************************************************************/
  70
  71 void ShadeModelChunk::initMethod (InitPhase ePhase)
  72 {
  73     Inherited::initMethod(ePhase);
  74 }
  75
  76
  77 /***************************************************************************\
  78  *                           Instance methods                              *
  79 \***************************************************************************/
  80
  81 /*-------------------------------------------------------------------------*\
  82  -  private                                                                 -
  83 \*-------------------------------------------------------------------------*/
  84
  85 /*----------------------- constructors & destructors ----------------------*/
  86
  87 ShadeModelChunk::ShadeModelChunk(void) :
  88     Inherited()
  89 {
  90 }
  91
  92 ShadeModelChunk::ShadeModelChunk(const ShadeModelChunk &source) :
  93     Inherited(source)
  94 {
  95 }
  96
  97 ShadeModelChunk::~ShadeModelChunk(void)
  98 {
  99 }
 100
 101 /*------------------------- Chunk Class Access ---------------------------*/
 102
 103 const StateChunkClass *ShadeModelChunk::getClass(void) const
 104 {
 105     return &_class;
 106 }
 107
 108 /*------------------------------- Sync -----------------------------------*/
 109
 110 void ShadeModelChunk::changed(ConstFieldMaskArg whichField,
 111                               UInt32            origin,
 112                               BitVector         details)
 113 {
 114     Inherited::changed(whichField, origin, details);
 115 }
 116
 117 /*------------------------------ Output ----------------------------------*/
 118
 119 void ShadeModelChunk::dump(      UInt32,
 120                            const BitVector ) const
 121 {
 122     SLOG << "Dump ShadeModelChunk NI" << std::endl;
 123 }
 124
 125 /*------------------------------ State ------------------------------------*/
 126
 127 void ShadeModelChunk::activate(DrawEnv *pEnv, UInt32)
 128 {
 129 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 130     pEnv->incNumChunkChanges();
 131
 132     if(getShadeModel() != GL_SMOOTH)
 133         glShadeModel(getShadeModel());
 134 #else
 135     OSG_ASSERT(false);
 136 #endif
 137 }
 138
 139 void ShadeModelChunk::changeFrom(DrawEnv    *pEnv,
 140                                  StateChunk *old_chunk,
 141                                  UInt32      index    )
 142 {
 143     ShadeModelChunk *old = dynamic_cast<ShadeModelChunk *>(old_chunk);
 144
 145     if(old == NULL)
 146     {
 147         FWARNING(("ShadeModelChunk::changeFrom: caught "
 148                   "non-ShadeModelChunk!\n"));
 149         return;
 150     }
 151
 152     // ShadeModelChunk didn't change so do nothing.
 153     if(old == this)
 154         return;
 155
 156 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 157     pEnv->incNumChunkChanges();
 158
 159     if(old->getShadeModel() != getShadeModel())
 160         glShadeModel(getShadeModel());
 161 #else
 162     OSG_ASSERT(false);
 163 #endif
 164 }
 165
 166 void ShadeModelChunk::deactivate(DrawEnv *, UInt32)
 167 {
 168 #if !defined(OSG_OGL_COREONLY) || defined(OSG_CHECK_COREONLY)
 169     if(getShadeModel() != GL_SMOOTH)
 170         glShadeModel(GL_SMOOTH);
 171 #else
 172     OSG_ASSERT(false);
 173 #endif
 174 }
 175
 176
 177 /*-------------------------- Comparison -----------------------------------*/
 178
 179 Real32 ShadeModelChunk::switchCost(StateChunk *OSG_CHECK_ARG(chunk))
 180 {
 181     return 0;
 182 }
 183
 184 bool ShadeModelChunk::operator <(const StateChunk &other) const
 185 {
 186     return this < &other;
 187 }
 188
 189 bool ShadeModelChunk::operator ==(const StateChunk &other) const
 190 {
 191     ShadeModelChunk const *tother =
 192             dynamic_cast<ShadeModelChunk const*>(&other);
 193
 194     if(!tother)
 195         return false;
 196
 197     if(tother == this)
 198         return true;
 199
 200     return true;
 201 }
 202
 203 bool ShadeModelChunk::operator !=(const StateChunk &other) const
 204 {
 205     return !(*this == other);
 206 }
 207
 208 OSG_END_NAMESPACE
 209