void icetDestroyContext(IceTContext context)
{
IceTContext saved_current_context;
saved_current_context = icetGetContext();
if (context == saved_current_context) {
icetRaiseDebug("Destroying current context.");
saved_current_context = NULL;
}
/* Temporarily make the context to be destroyed current. */
icetSetContext(context);
/* Call destructors for other dependent units. */
callDestructor(ICET_RENDER_LAYER_DESTRUCTOR);
/* From here on out be careful. We are invalidating the context. */
context->magic_number = 0;
icetStateDestroy(context->state);
context->state = NULL;
context->communicator->Destroy(context->communicator);
/* The context is now completely destroyed and now null. Restore saved
context. */
icetSetContext(saved_current_context);
}
IceTContext icetCreateContext(IceTCommunicator comm)
{
int idx;
for (idx = 0; idx < num_contexts; idx++) {
if (context_list[idx].state == NULL) {
break;
}
}
if (idx >= num_contexts) {
num_contexts += 4;
context_list = realloc(context_list,
num_contexts*sizeof(struct IceTContext));
memset(context_list + idx, 0, 4 * sizeof(struct IceTContext));
}
context_list[idx].communicator = comm->Duplicate(comm);
context_list[idx].buffer = NULL;
context_list[idx].buffer_size = 0;
context_list[idx].buffer_offset = 0;
context_list[idx].display_inflate_texture = 0;
context_list[idx].state = icetStateCreate();
icetSetContext(idx);
icetStateSetDefaults();
return idx;
}
IceTContext icetCreateContext(IceTCommunicator comm)
{
IceTContext context = malloc(sizeof(struct IceTContextStruct));
context->magic_number = CONTEXT_MAGIC_NUMBER;
context->communicator = comm->Duplicate(comm);
context->state = icetStateCreate();
icetSetContext(context);
icetStateSetDefaults();
return context;
}
// ****************************************************************************
// Method: IceTNetworkManager default constructor
//
// Programmer: Tom Fogal
// Creation: June 17, 2008
//
// Modifications:
//
// Tom Fogal, Wed May 18 11:57:34 MDT 2011
// Initialize 'renderings'.
//
// ****************************************************************************
IceTNetworkManager::IceTNetworkManager(void): NetworkManager(), renderings(0)
{
this->comm = icetCreateMPICommunicator(VISIT_MPI_COMM);
DEBUG_ONLY(ICET_CHECK_ERROR);
this->context = icetCreateContext(comm);
DEBUG_ONLY(ICET_CHECK_ERROR);
ICET(icetSetContext(this->context));
DEBUG_ONLY(ICET(icetDiagnostics(ICET_DIAG_FULL)));
ICET(icetStrategy(ICET_STRATEGY_REDUCE));
ICET(icetDrawFunc(render));
ICET(icetDisable(ICET_DISPLAY));
ICET(icetInputOutputBuffers(
ICET_COLOR_BUFFER_BIT | ICET_DEPTH_BUFFER_BIT, /* inputs */
ICET_COLOR_BUFFER_BIT | ICET_DEPTH_BUFFER_BIT /* outputs */
));
DEBUG_ONLY(PR_ICET_MPI);
}