Allocating pfVec3/pfMaterial/pfGeoState in shared memory with C++ interface

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RUS (Daniela.Rainer++at++RUS.Uni-Stuttgart.DE)
Wed, 15 Jul 1998 18:24:26 +0000

Hi,

currently we are porting our application from the Performer C API to the C++
API. We wonder how to allocate coordinates/colors/normals/materials in shared
memory. The man pages for example for pfVec3 say:

"new allocates a pfVec3 from the default memory arena (-pfGetSharedArena)."
allocates memory from shared arena.

In the perfly C++ example code you find

  coords = (pfVec3*)pfCalloc(4, sizeof(pfVec3), arena);
Why do you use the C API here? Why not coords=new pfVec4(4, arena)?

   mtl = new pfMaterial();
Does this allocate mtl in the default shared arena?

  pfGeoState *gs = new (pfGetSharedArena()) pfGeoState;
Why not pfGeoState *gs = new pfGeoState;

Thanks for any help.

Best Regards
Daniela

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