Source/System/Window/Passive/OSGPassiveViewport.cpp

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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 "OSGGL.h"
  49 #include "OSGCamera.h"
  50 #include "OSGBackground.h"
  51 #include "OSGForeground.h"
  52 #include "OSGPassiveViewport.h"
  53
  54 #include "OSGRenderActionBase.h"
  55 #include "OSGPassiveWindow.h"
  56
  57 OSG_USING_NAMESPACE
  58
  59 /***************************************************************************\
  60  *                            Description                                  *
  61 \***************************************************************************/
  62
  63 /*! \class OSG::PassiveViewport
  64     \ingroup GrpSystemWindowViewports
  65
  66 A PassiveViewport is a basic Viewport for integration into other OpenGL
  67 programs. See \ref PageSystemWindowViewports for a description.
  68
  69 */
  70
  71 /*----------------------- constructors & destructors ----------------------*/
  72
  73 PassiveViewport::PassiveViewport(void) :
  74      Inherited      (    ),
  75     _pDeactivateTask(NULL)
  76 {
  77 }
  78
  79 PassiveViewport::PassiveViewport(const PassiveViewport &source) :
  80      Inherited      (source),
  81     _pDeactivateTask(NULL  )
  82 {
  83 }
  84
  85 PassiveViewport::~PassiveViewport(void)
  86 {
  87     _pDeactivateTask = NULL;
  88 }
  89
  90 /*----------------------------- class specific ----------------------------*/
  91
  92 void PassiveViewport::initMethod (InitPhase ePhase)
  93 {
  94 }
  95
  96 void PassiveViewport::changed(ConstFieldMaskArg whichField,
  97                               UInt32            origin,
  98                               BitVector         details)
  99 {
 100     Inherited::changed(whichField, origin, details);
 101 }
 102
 103 void PassiveViewport::dump(      UInt32    ,
 104                          const BitVector ) const
 105 {
 106     SLOG << "Dump PassiveViewport NI" << std::endl;
 107 }
 108
 109 void PassiveViewport::render(RenderActionBase *action)
 110 {
 111 #if 1 // Have to check GV
 112     if ( getCamera() == NULL )
 113     {
 114         SWARNING << "Viewport::render: no camera!" << std::endl;
 115         return;
 116     }
 117     if ( getBackground() == NULL )
 118     {
 119         SWARNING << "Viewport::render: no background!" << std::endl;
 120         return;
 121     }
 122     if ( getRoot() == NULL )
 123     {
 124         SWARNING << "Viewport::render: no root!" << std::endl;
 125         return;
 126     }
 127     if ( action->getWindow() == NULL)
 128     {
 129         SWARNING << "Viewport::render: no window!" << std::endl;
 130         return;
 131     }
 132
 133     Window *pWin  = action->getWindow();
 134
 135     if((pWin->getDrawMode() & Window::PartitionDrawMask) ==
 136                                                  Window::ParallelPartitionDraw)
 137     {
 138         if(_pDeactivateTask == NULL)
 139         {
 140             _pDeactivateTask =
 141                 new WindowDrawTask(WindowDrawTask::DeactivateAndWait);
 142         }
 143
 144         pWin->_pContextThread->queueTask(_pDeactivateTask);
 145
 146         _pDeactivateTask->waitForBarrier();
 147
 148         pWin->doActivate();
 149     }
 150
 151     GLint vp[4];
 152
 153     glGetIntegerv(GL_VIEWPORT, vp);
 154
 155     setLeft      (Real32(vp[0])           );
 156     setBottom    (Real32(vp[1])           );
 157     setRight     (Real32(vp[0] + vp[2] - 1));
 158     setTop       (Real32(vp[1] + vp[3] - 1));
 159
 160     if((pWin->getDrawMode() & Window::PartitionDrawMask) ==
 161                                                  Window::ParallelPartitionDraw)
 162     {
 163         pWin->doDeactivate();
 164
 165         pWin->_pContextThread->queueTask(pWin->_pActivateTask);
 166     }
 167 #endif
 168
 169     Inherited::render(action);
 170 }
 171
 172 bool PassiveViewport::isPassive(void)
 173 {
 174     return true;
 175 }