Source/System/FileIO/OSB/OSGOSBShaderParameterRealElement.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *                   Copyright (C) 2013 by the OpenSG Forum                  *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29
  30 #include "OSGOSBShaderParameterRealElement.h"
  31
  32 #include "OSGOSBRootElement.h"
  33
  34 OSG_BEGIN_NAMESPACE
  35
  36 /*-------------------------------------------------------------------------*/
  37 /* OSBShaderParameterRealElement                                             */
  38 /*-------------------------------------------------------------------------*/
  39
  40 /*! Reads the ShaderParameterReal from OpenSG 1.x and stores it's value
  41     so OSBSHLChunkElement can add it as a uniform, see
  42     OSBSHLChunkElement::postRead().
  43  */
  44
  45 /*-------------------------------------------------------------------------*/
  46 /* Static members                                                          */
  47
  48 OSBElementRegistrationHelper<OSBShaderParameterRealElement>
  49     OSBShaderParameterRealElement::_regHelper =
  50         OSBElementRegistrationHelper<OSBShaderParameterRealElement>(
  51             "ShaderParameterReal");
  52
  53 /*-------------------------------------------------------------------------*/
  54 /* Constructor                                                             */
  55
  56 OSBShaderParameterRealElement::OSBShaderParameterRealElement(
  57     OSBRootElement *root) :
  58
  59      Inherited(root, OSGOSBHeaderVersion200),
  60     _value    (                            )
  61 {
  62 }
  63
  64 /*-------------------------------------------------------------------------*/
  65 /* Destructor                                                              */
  66
  67 OSBShaderParameterRealElement::~OSBShaderParameterRealElement(void)
  68 {
  69 }
  70
  71 /*-------------------------------------------------------------------------*/
  72 /* Reading                                                                 */
  73
  74 void
  75 OSBShaderParameterRealElement::read(const std::string &typeName)
  76 {
  77     OSG_OSB_LOG(("OSBShaderParameterRealElement::read: [%s]\n",
  78                  typeName.c_str()));
  79
  80     BinaryReadHandler *rh = editRoot()->getReadHandler();
  81
  82     UInt8  ptrTypeId;
  83     UInt16 version;
  84
  85     rh->getValue(ptrTypeId);
  86     rh->getValue(version  );
  87
  88     OSG_OSB_LOG(("OSBShaderParameterRealElement::read: version: [%u]\n",
  89                  version));
  90
  91     std::string    fieldName;
  92     std::string    fieldTypeName;
  93     UInt32         fieldSize;
  94     PtrFieldListIt ptrFieldIt;
  95
  96     while(readFieldHeader("", fieldName, fieldTypeName, fieldSize))
  97     {
  98         if(fieldName == "name")
  99         {
 100             _name.copyFromBin(*rh);
 101         }
 102         else if(fieldName == "value")
 103         {
 104             _value.copyFromBin(*rh);
 105         }
 106         else
 107         {
 108             OSG_OSB_LOG(("Skipping [%d] bytes for field [%s]\n",
 109                          fieldSize, fieldName.c_str()));
 110             rh->skip(fieldSize);
 111         }
 112     }
 113
 114     // no container is created for this element, which means the root does
 115     // not automatically insert it into the IdElemMap - do it manually
 116     editRoot()->editIdElemMap().insert(
 117         OSBRootElement::IdElemMap::value_type(getFCIdFile(), this));
 118 }
 119
 120 void
 121 OSBShaderParameterRealElement::postRead(void)
 122 {
 123     OSG_OSB_LOG(("OSBShaderParameterRealElement::postRead:\n"));
 124 }
 125
 126 /*-------------------------------------------------------------------------*/
 127 /* Writing                                                                 */
 128
 129 void
 130 OSBShaderParameterRealElement::preWrite(FieldContainer * const)
 131 {
 132     // This can not be called, ShaderParameterReal does not exist
 133     OSG_ASSERT(false);
 134 }
 135
 136 void
 137 OSBShaderParameterRealElement::write(void)
 138 {
 139     // This can not be called, ShaderParameterReal does not exist
 140     OSG_ASSERT(false);
 141 }
 142
 143 /*-------------------------------------------------------------------------*/
 144 /* Access                                                                  */
 145
 146 Real32
 147 OSBShaderParameterRealElement::getValue(void) const
 148 {
 149     return _value.getValue();
 150 }
 151
 152 OSG_END_NAMESPACE