Source/System/Cluster/Window/SortLast/OSGSepiaComposer.cpp

   1 /*---------------------------------------------------------------------------*\
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   5  *               Copyright (C) 2000-2002 by the OpenSG Forum                 *
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  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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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 #include "OSGSepiaComposer.h"
  48
  49 OSG_USING_NAMESPACE
  50
  51 /*! \class OSG::SepiaComposer
  52
  53  This composer implements the binary swap composition.
  54 */
  55
  56 void SepiaComposer::initMethod(InitPhase ePhase)
  57 {
  58     Inherited::initMethod(ePhase);
  59 }
  60
  61 /*----------------------- constructors & destructors ----------------------*/
  62
  63 SepiaComposer::SepiaComposer(void) :
  64      Inherited      (    ),
  65     _descphysaddr   (0   ),
  66     _descvirtaddr   (NULL),
  67 #ifdef OSG_WITH_SEPIA
  68     _pam            (    ),
  69 #endif
  70     _frame          (0   ),
  71     _pbuffer        (NULL),
  72     _zbuffer        (NULL),
  73     _fromNode       (0   ),
  74     _toNode         (0   ),
  75     _dmaBufferHandle(0   )
  76 {
  77 }
  78
  79 SepiaComposer::SepiaComposer(const SepiaComposer &source) :
  80      Inherited      (source),
  81     _descphysaddr   (0     ),
  82     _descvirtaddr   (NULL  ),
  83 #ifdef OSG_WITH_SEPIA
  84     _pam            (      ),
  85 #endif
  86     _frame          (0     ),
  87     _pbuffer        (NULL  ),
  88     _zbuffer        (NULL  ),
  89     _fromNode       (0     ),
  90     _toNode         (0     ),
  91     _dmaBufferHandle(0     )
  92 {
  93 }
  94
  95 SepiaComposer::~SepiaComposer(void)
  96 {
  97 }
  98
  99 /*----------------------------- class specific ----------------------------*/
 100
 101 void SepiaComposer::changed(ConstFieldMaskArg whichField,
 102                             UInt32            origin,
 103                             BitVector         details)
 104 {
 105     Inherited::changed(whichField, origin, details);
 106 }
 107
 108 void SepiaComposer::dump(      UInt32    ,
 109                          const BitVector ) const
 110 {
 111     SLOG << "Dump SepiaComposer NI" << std::endl;
 112 }
 113
 114 /*----------------------------- features ---------------------------------*/
 115
 116 /*! Currently it is not possible to do rendering on the client
 117  */
 118 bool SepiaComposer::getClientRendering()
 119 {
 120     return false;
 121 }
 122
 123 /*----------------------------- composition -------------------------------*/
 124
 125 void SepiaComposer::open(void)
 126 {
 127 #ifdef OSG_WITH_SEPIA
 128     // sync all renderers and the client
 129     Connection *connection=clusterWindow()->getNetwork()->getMainConnection();
 130     if(isClient())
 131     {
 132         connection->wait();
 133         connection->signal();
 134     }
 135     else
 136     {
 137         connection->signal();
 138         connection->wait();
 139     }
 140
 141     bool isDisplay;
 142     _toNode   = clusterId()+1;
 143     _fromNode = clusterId()-1;
 144
 145     if(isClient())
 146     {
 147         _toNode    = SEPIA_NO_NODE;
 148         isDisplay = true;
 149     }
 150     else
 151     {
 152         isDisplay = false;
 153     }
 154     if(clusterId() == 0)
 155     {
 156         _fromNode = SEPIA_NO_NODE;
 157     }
 158 //    printf("init %d %d\n",getWidth(),getHeight());
 159
 160     int bfsize = clusterWindow()->getWidth() * clusterWindow()->getHeight() * 4;
 161
 162     /* open the default Sepia */
 163     _pam = SepiaOpen(NULL);
 164     /* set the ServerNet node number for this node */
 165     SepiaSetNodeNumber(_pam, clusterId());
 166     /* set the node type: Rendering or Display */
 167     SepiaSetNodeType(_pam, isDisplay ? DISPLAY_NODE : RENDERING_NODE);
 168     /* initialize the Sepia */
 169     SepiaInit(_pam);
 170     /* Insure that cleanup is done when we exit */
 171     // !!!! atexit(finalizeSepia);
 172
 173     SINFO << "Use readPixel Mode" << std::endl;
 174     /* set the channel format */
 175     SepiaSetFormat(_pam, TWO_32b_CHANNELS_DISPLAY_ONE);
 176
 177     if (isDisplay) {
 178         _pbuffer = SepiaAllocateAlignedMemory (bfsize);
 179         SepiaLockAndBuildDescriptors (_pam, _pbuffer, NULL,
 180                                       bfsize,
 181                                       isDisplay,
 182                                       &_descvirtaddr,
 183                                       &_descphysaddr);
 184     }
 185     else
 186     {
 187         /*--render node specific setup--*/
 188         SepiaSetVerbose(_pam,1);
 189
 190         /* set the comparison to less than and 32 bit Z depth */
 191         SetCompzParameters(_pam, GL_LESS, Z32);
 192
 193         /* setup two buffers: one for the pixels and one for the depth information */
 194         _pbuffer = SepiaAllocateAlignedMemory (bfsize);
 195         _zbuffer = SepiaAllocateAlignedMemory (bfsize);
 196         SepiaLockAndBuildDescriptors (_pam,
 197                                       _pbuffer, _zbuffer,
 198                                       bfsize, isDisplay,
 199                                       &_descvirtaddr,
 200                                       &_descphysaddr);
 201     }
 202 #endif
 203 }
 204
 205 void SepiaComposer::composeWindow(void)
 206 {
 207 #ifdef OSG_WITH_SEPIA
 208     int width=clusterWindow()->getWidth();
 209     int height=clusterWindow()->getHeight();
 210     // sync all renderers and the client
 211     Connection *connection=clusterWindow()->getNetwork()->getMainConnection();
 212     if(isClient())
 213     {
 214         connection->wait();
 215         connection->signal();
 216     }
 217     else
 218     {
 219         connection->signal();
 220         connection->wait();
 221     }
 222
 223     // display node ?
 224     if (isClient())
 225     {
 226         SepiaStartTransfer(_pam, _fromNode,
 227                            SEPIA_NO_NODE,
 228                            _descphysaddr);
 229         usleep(1000);
 230         /* wait until we have a buffer to display */
 231         SepiaWaitTransfer(_pam);
 232
 233         glViewport(0,0,width,height);
 234
 235         glClearColor(0.0, 0.0, 0.0, 0.0);
 236         glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 237
 238         glPushMatrix();
 239         glLoadIdentity();
 240         glMatrixMode(GL_PROJECTION);
 241         glPushMatrix();
 242         glLoadIdentity();
 243         glOrtho(0, width, 0, height,-1,1);
 244
 245         glDisable(GL_SCISSOR_TEST);
 246         glRasterPos2i(0, 0);
 247         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 248         glPixelZoom(1.0, 1.0);
 249         glDrawPixels(width,height,
 250                      GL_RGBA, GL_UNSIGNED_BYTE,
 251                      _pbuffer);
 252         glPopMatrix();
 253         glMatrixMode(GL_MODELVIEW);
 254         glPopMatrix();
 255     }
 256     else
 257     {
 258         glPixelStorei(GL_PACK_ALIGNMENT, 1);
 259         glReadPixels(   0,                                              /* GLint x - lower left corner */
 260                         0,                                              /* GLint y - lower left corner */
 261                         width,                  /* GLsizei width */
 262                         height,                 /* GLsizei height */
 263                         GL_RGBA,                                /* GLenum format */
 264                         GL_UNSIGNED_BYTE,               /* GLenum type */
 265                         _pbuffer);
 266         glReadPixels(   0,                                              /* GLint x - lower left corner */
 267                         0,                                              /* GLint y - lower left corner */
 268                         width,                  /* GLsizei width */
 269                         height              ,   /* GLsizei height */
 270                         GL_DEPTH_COMPONENT,             /* GLenum format */
 271                         GL_UNSIGNED_INT,                /* GLenum type */
 272                         _zbuffer);
 273
 274         SepiaStartTransfer(_pam,
 275                            _fromNode,
 276                            _toNode,
 277                            _descphysaddr);
 278
 279         /* wait for the transfer to complete */
 280         SepiaWaitTransfer(_pam);
 281     }
 282 #endif
 283 }
 284
 285 void SepiaComposer::close(void)
 286 {
 287 }
 288
 289 /*----------------------------- features ---------------------------------*/
 290
 291 /*----------------------------- helper ------------------------------------*/
 292
 293 /*----------------------------- thread proc -------------------------------*/
 294