Source/System/State/OpenGL/OSGLogicOpChunk.cpp

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  29 /*---------------------------------------------------------------------------*\
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  37 \*---------------------------------------------------------------------------*/
  38
  39 //---------------------------------------------------------------------------
  40 //  Includes
  41 //---------------------------------------------------------------------------
  42
  43 #include <cstdlib>
  44 #include <cstdio>
  45
  46 #include "OSGConfig.h"
  47
  48 #include "OSGLogicOpChunk.h"
  49 #include "OSGDrawEnv.h"
  50
  51 OSG_BEGIN_NAMESPACE
  52
  53 // Documentation for this class is emitted in the
  54 // OSGLogicOpChunkBase.cpp file.
  55 // To modify it, please change the .fcd file (OSGLogicOpChunk.fcd) and
  56 // regenerate the base file.
  57
  58 /***************************************************************************\
  59  *                           Class variables                               *
  60 \***************************************************************************/
  61
  62 #ifndef OSG_OGL_ES2
  63 StateChunkClass LogicOpChunk::_class("LogicOp", 1, 50);
  64 #else
  65 StateChunkClass LogicOpChunk::_class("LogicOp", 1, 110);
  66 #endif
  67
  68 /***************************************************************************\
  69  *                           Class methods                                 *
  70 \***************************************************************************/
  71
  72 void LogicOpChunk::initMethod(InitPhase ePhase)
  73 {
  74     Inherited::initMethod(ePhase);
  75 }
  76
  77
  78 /***************************************************************************\
  79  *                           Instance methods                              *
  80 \***************************************************************************/
  81
  82 /*------------------------- Chunk Class Access ---------------------------*/
  83
  84 const StateChunkClass *LogicOpChunk::getClass(void) const
  85 {
  86     return &_class;
  87 }
  88
  89 /*--------------------------------- Sync ---------------------------------*/
  90
  91 void LogicOpChunk::changed(ConstFieldMaskArg whichField,
  92                             UInt32            origin,
  93                             BitVector         details)
  94 {
  95     Inherited::changed(whichField, origin, details);
  96 }
  97
  98 /*-------------------------------- Output --------------------------------*/
  99
 100 void LogicOpChunk::dump(      UInt32    ,
 101                          const BitVector ) const
 102 {
 103     SLOG << "Dump LogicOpChunk NI" << std::endl;
 104 }
 105
 106 /*----------------------------- State Commands ---------------------------*/
 107
 108 void LogicOpChunk::activate(DrawEnv *pEnv, UInt32 index)
 109 {
 110 #ifndef OSG_OGL_ES2
 111     pEnv->incNumChunkChanges();
 112
 113     if(_sfLogicOp.getValue() != GL_COPY)
 114     {
 115         glLogicOp(_sfLogicOp.getValue());
 116         glEnable (GL_COLOR_LOGIC_OP    );
 117     }
 118 #endif
 119 }
 120
 121 void LogicOpChunk::changeFrom(DrawEnv    *pEnv,
 122                               StateChunk *old,
 123                               UInt32      index  )
 124 {
 125     old ->deactivate(pEnv, index);
 126     this->activate  (pEnv, index);
 127 }
 128
 129 void LogicOpChunk::deactivate(DrawEnv *pEnv, UInt32 index)
 130 {
 131 #ifndef OSG_OGL_ES2
 132     if(_sfLogicOp.getValue() != GL_COPY)
 133     {
 134         glDisable(GL_COLOR_LOGIC_OP);
 135         glLogicOp(GL_COPY          );
 136     }
 137 #endif
 138 }
 139
 140 /*------------------------------- Comparison -----------------------------*/
 141
 142 Real32 LogicOpChunk::switchCost(StateChunk *chunk)
 143 {
 144     return 0.f;
 145 }
 146
 147 bool LogicOpChunk::operator < (const StateChunk &other) const
 148 {
 149     return this < &other;
 150 }
 151
 152 bool LogicOpChunk::operator == (const StateChunk &other) const
 153 {
 154     LogicOpChunk const *tOther = dynamic_cast<LogicOpChunk const *>(&other);
 155
 156     if(tOther == NULL)
 157         return false;
 158
 159     if(tOther == this)
 160         return true;
 161
 162     if(getLogicOp() != tOther->getLogicOp())
 163         return false;
 164
 165     return true;
 166 }
 167
 168 bool LogicOpChunk::operator != (const StateChunk &other) const
 169 {
 170     return !(*this == other);
 171 }
 172
 173 /*-------------------------------------------------------------------------*\
 174  -  private                                                                 -
 175 \*-------------------------------------------------------------------------*/
 176
 177 /*----------------------- constructors & destructors ----------------------*/
 178
 179 LogicOpChunk::LogicOpChunk(void) :
 180     Inherited()
 181 {
 182 }
 183
 184 LogicOpChunk::LogicOpChunk(const LogicOpChunk &source) :
 185     Inherited(source)
 186 {
 187 }
 188
 189 LogicOpChunk::~LogicOpChunk(void)
 190 {
 191 }
 192
 193 /*----------------------------- class specific ----------------------------*/
 194
 195 OSG_END_NAMESPACE