Source/System/State/Auxiliary/OSGTextureObjRefChunk.cpp

   1 /*---------------------------------------------------------------------------*\
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  37 \*---------------------------------------------------------------------------*/
  38
  39 //---------------------------------------------------------------------------
  40 //  Includes
  41 //---------------------------------------------------------------------------
  42
  43 #include <cstdlib>
  44 #include <cstdio>
  45
  46 #include <boost/bind.hpp>
  47
  48 #include "OSGConfig.h"
  49
  50 #include "OSGGL.h"
  51 #include "OSGGLU.h"
  52 #include "OSGGLEXT.h"
  53 #include "OSGImage.h"
  54
  55 #include "OSGDrawEnv.h"
  56
  57 #include "OSGTextureObjRefChunk.h"
  58
  59 //#define OSG_DUMP_TEX
  60
  61 OSG_USING_NAMESPACE
  62
  63 // Documentation for this class is emited in the
  64 // OSGTextureObjRefChunkBase.cpp file.
  65 // To modify it, please change the .fcd file (OSGTextureObjRefChunk.fcd) and
  66 // regenerate the base file.
  67
  68 /***************************************************************************\
  69  *                           Class variables                               *
  70 \***************************************************************************/
  71
  72 /***************************************************************************\
  73  *                           Class methods                                 *
  74 \***************************************************************************/
  75
  76 /*-------------------------------------------------------------------------*\
  77  -  private                                                                -
  78 \*-------------------------------------------------------------------------*/
  79
  80 void TextureObjRefChunk::initMethod(InitPhase ePhase)
  81 {
  82     Inherited::initMethod(ePhase);
  83 }
  84
  85 /***************************************************************************\
  86  *                           Instance methods                              *
  87 \***************************************************************************/
  88
  89 /*-------------------------------------------------------------------------*\
  90  -  private                                                                 -
  91 \*-------------------------------------------------------------------------*/
  92
  93
  94 /*------------- constructors & destructors --------------------------------*/
  95
  96 TextureObjRefChunk::TextureObjRefChunk(void) :
  97     Inherited()
  98 {
  99 }
 100
 101 TextureObjRefChunk::TextureObjRefChunk(const TextureObjRefChunk &source) :
 102     Inherited(source)
 103 {
 104 }
 105
 106 TextureObjRefChunk::~TextureObjRefChunk(void)
 107 {
 108 }
 109
 110 /*------------------------- Chunk Class Access ---------------------------*/
 111
 112 /*------------------------------- Sync -----------------------------------*/
 113
 114 /*! React to field changes.
 115     Note: this function also handles CubeTexture changes, make sure to keep
 116     it consistent with the cubeTexture specifics
 117 */
 118
 119 void TextureObjRefChunk::changed(ConstFieldMaskArg whichField,
 120                                  UInt32            origin,
 121                                  BitVector         details)
 122 {
 123     Inherited::changed(whichField, origin, details);
 124 }
 125
 126 bool TextureObjRefChunk::isTransparent(void) const
 127 {
 128     // Even if the texture has alpha, the Blending is makes the sorting
 129     // important, thus textures per se are not transparent
 130     return false;
 131 }
 132
 133
 134 /*----------------------------- onCreate --------------------------------*/
 135
 136 void TextureObjRefChunk::onCreate(const TextureObjRefChunk *source)
 137 {
 138     Inherited::onCreate(source);
 139 }
 140
 141 void TextureObjRefChunk::onCreateAspect(const TextureObjRefChunk *createAspect,
 142                                         const TextureObjRefChunk *source      )
 143 {
 144     Inherited::onCreateAspect(createAspect, source);
 145 }
 146
 147 /*------------------------------ Output ----------------------------------*/
 148
 149 void TextureObjRefChunk::dump(      UInt32    OSG_CHECK_ARG(uiIndent),
 150                               const BitVector OSG_CHECK_ARG(bvFlags )) const
 151 {
 152     SLOG << "Dump TextureObjRefChunk NI" << std::endl;
 153 }
 154
 155
 156 /*------------------------------ State ------------------------------------*/
 157
 158
 159 void TextureObjRefChunk::activate(DrawEnv *pEnv, UInt32 idx)
 160 {
 161     Window *pWin = pEnv->getWindow();
 162
 163     pEnv->incNumChunkChanges();
 164
 165     if(activateTexture(pWin, idx))
 166         return; // trying to access too many textures
 167
 168     if(this->getOsgGLId() != 0)
 169     {
 170         glBindTexture(this->getTarget(),
 171                       pWin->getGLObjectId(this->getOsgGLId()));
 172     }
 173     else
 174     {
 175         glBindTexture(this->getTarget(),
 176                       this->getOglGLId());
 177     }
 178
 179     pEnv->setActiveTexTarget(idx, this->getTarget());
 180
 181     glEnable(this->getTarget());
 182 }
 183
 184
 185 void TextureObjRefChunk::changeFrom(DrawEnv    *pEnv,
 186                                     StateChunk *old   ,
 187                                     UInt32      idx )
 188 {
 189     // change from me to me?
 190     // this assumes I haven't changed in the meantime.
 191     // is that a valid assumption?
 192     if(old == this)
 193         return;
 194
 195     pEnv->incNumChunkChanges();
 196
 197     Window *pWin = pEnv->getWindow();
 198
 199     if(activateTexture(pWin, idx))
 200         return; // trying to access too many textures
 201
 202     if(this->getOsgGLId() != 0)
 203     {
 204         glBindTexture(this->getTarget(),
 205                       pWin->getGLObjectId(this->getOsgGLId()));
 206     }
 207     else
 208     {
 209         glBindTexture(this->getTarget(),
 210                       this->getOglGLId());
 211     }
 212
 213     pEnv->setActiveTexTarget(idx, this->getTarget());
 214
 215     glEnable(this->getTarget());
 216 }
 217
 218 void TextureObjRefChunk::deactivate(DrawEnv *pEnv, UInt32 idx)
 219 {
 220     Window *pWin = pEnv->getWindow();
 221
 222     if(activateTexture(pWin, idx))
 223         return; // trying to access too many textures
 224
 225     glDisable(this->getTarget());
 226
 227     pEnv->setActiveTexTarget(idx, GL_NONE);
 228 }
 229
 230 /*-------------------------- Comparison -----------------------------------*/
 231
 232 Real32 TextureObjRefChunk::switchCost(StateChunk *OSG_CHECK_ARG(chunk))
 233 {
 234     return 0;
 235 }
 236
 237 bool TextureObjRefChunk::operator < (const StateChunk &other) const
 238 {
 239     return this < &other;
 240 }
 241
 242 bool TextureObjRefChunk::operator == (const StateChunk &other) const
 243 {
 244     bool returnValue = false;
 245
 246     return returnValue;
 247 }
 248
 249 bool TextureObjRefChunk::operator != (const StateChunk &other) const
 250 {
 251     return ! (*this == other);
 252 }
 253
 254 void TextureObjRefChunk::validate(DrawEnv *)
 255 {
 256 }
 257
 258 Int32 TextureObjRefChunk::getOpenGLId(DrawEnv *pEnv)
 259 {
 260     if(this->getOsgGLId() != 0)
 261     {
 262         return pEnv->getWindow()->getGLObjectId(this->getOsgGLId());
 263     }
 264     else
 265     {
 266         return this->getOglGLId();
 267     }
 268 }
 269
 270 GLenum TextureObjRefChunk::determineInternalFormat(void)
 271 {
 272     return _sfInternalFormat.getValue();
 273 }