Ran Yakir (rany++at++rtset.co.il)
Thu, 28 Jan 1999 16:38:43 +0200
I encountered some strange behaviour of pfGetStage(), when it is called
from the COMPUTE process on IRIX 6.5.2 with Performer 2.2.3.
The function returns -1 allways. This doesn't happen on IRIX 6.4 with
Performer 2.2.2.
Attached is a sample program that prints the output of pfGetStage from
the DRAW and COMPUTE processes.
Ran
--
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//
// Copyright 1995, Silicon Graphics, Inc.
// ALL RIGHTS RESERVED
//
// UNPUBLISHED -- Rights reserved under the copyright laws of the United
// States. Use of a copyright notice is precautionary only and does not
// imply publication or disclosure.
//
// U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
// Use, duplication or disclosure by the Government is subject to restrictions
// as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
// in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
// in similar or successor clauses in the FAR, or the DOD or NASA FAR
// Supplement. Contractor/manufacturer is Silicon Graphics, Inc.,
// 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
//
// Permission to use, copy, modify, distribute, and sell this software
// and its documentation for any purpose is hereby granted without
// fee, provided that (i) the above copyright notices and this
// permission notice appear in all copies of the software and related
// documentation, and (ii) the name of Silicon Graphics may not be
// used in any advertising or publicity relating to the software
// without the specific, prior written permission of Silicon Graphics.
//
// THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
// EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
// WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//
// IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR ANY SPECIAL,
// INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY
// DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
// WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY
// THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE
// OR PERFORMANCE OF THIS SOFTWARE.
//
//
// simpleC.C: simple Performer program for programmer's guide
//
// $Revision: 1.10 $
// $Date: 1995/11/22 14:35:21 $
//
#include <stdlib.h>
#include <Performer/pf/pfChannel.h>
#include <Performer/pf/pfLightSource.h>
#include <Performer/pf/pfNode.h>
#include <Performer/pf/pfScene.h>
#include <Performer/pfutil.h>
#include <Performer/pfdu.h>
//
// Usage() -- print usage advice and exit. This
// procedure is executed in the application process.
//
static void
Usage (void)
{
pfNotify(PFNFY_FATAL, PFNFY_USAGE, "Usage: simpleC file.ext ...\n");
exit(1);
}
static void computeFunc (void *data)
{
int p;
pfNotify (PFNFY_INFO, PFNFY_PRINT,
"computeFunc: pfGetStage(): 0x%x\n", pfGetStage (getpid(), &p));
}
static void drawFunc (pfChannel *chan, void *data)
{
int p;
pfNotify (PFNFY_INFO, PFNFY_PRINT,
"drawFunc: pfGetStage(): 0x%x\n", pfGetStage (getpid(), &p));
}
int
main (int argc, char *argv[])
{
float t = 0.0f;
if (argc < 2)
Usage();
// Initialize Performer
pfInit();
pfNotifyLevel (PFNFY_INFO);
// Use default multiprocessing mode based on number of
// processors.
//
pfMultiprocess( PFMP_APP_CULL_DRAW | PFMP_FORK_COMPUTE );
// Load all loader DSO's before pfConfig() forks
pfdInitConverter(argv[1]);
// initiate multi-processing mode set in pfMultiprocess call
// FORKs for Performer processes, CULL and DRAW, etc. happen here.
//
pfConfig();
pfComputeFunc (computeFunc);
// Append to Performer search path, PFPATH, files in
// /usr/share/Performer/data */
pfFilePath(".:/usr/share/Performer/data");
pfNode *root = pfdLoadFile(argv[1]);
if (root == NULL)
{
pfExit();
exit(-1);
}
// Attach loaded file to a new pfScene
pfScene *scene = new pfScene;
scene->addChild(root);
// Create a pfLightSource and attach it to scene
scene->addChild(new pfLightSource);
// Configure and open GL window
pfPipe *p = pfGetPipe(0);
pfPipeWindow *pw = new pfPipeWindow(p);
pw->setWinType(PFPWIN_TYPE_X);
pw->setName("IRIS Performer");
pw->setOriginSize(0,0,500,500);
pw->open();
// Create and configure a pfChannel.
pfChannel *chan = new pfChannel(p);
chan->setTravFunc (PFTRAV_DRAW, drawFunc);
chan->setScene(scene);
chan->setFOV(45.0f, 0.0f);
// determine extent of scene's geometry
pfSphere bsphere;
root->getBound(&bsphere);
chan->setNearFar(1.0f, 10.0f * bsphere.radius);
// Simulate for twenty seconds.
while (t < 20.0f)
{
pfCoord view;
float s, c;
// Go to sleep until next frame time.
pfSync();
// Initiate cull/draw for this frame.
pfFrame();
// Compute new view position.
t = pfGetTime();
pfSinCos(45.0f*t, &s, &c);
view.hpr.set(45.0f*t, -10.0f, 0);
view.xyz.set(2.0f * bsphere.radius * s,
-2.0f * bsphere.radius *c,
0.5f * bsphere.radius);
chan->setView(view.xyz, view.hpr);
}
// Terminate parallel processes and exit
pfExit();
return 0;
}
This archive was generated by hypermail 2.0b2 on Thu Jan 28 1999 - 06:39:00 PST