crOpenGL/feedback/feedbackspu_init.c

/* Copyright (c) 2001, Stanford University
 * All rights reserved
 *
 * See the file LICENSE.txt for information on redistributing this software.
 */

#include "cr_spu.h"
#include "cr_environment.h"
#include "cr_string.h"
#include "cr_error.h"
#include "cr_mem.h"
#include "cr_server.h"
#include "feedbackspu.h"
#include <fcntl.h>
#ifndef WINDOWS
#include <unistd.h>
#endif

feedbackSPU feedback_spu;

static SPUFunctions feedback_functions = {
    NULL, /* CHILD COPY */
    NULL, /* DATA */
    _cr_feedback_table /* THE ACTUAL FUNCTIONS */
};

static SPUFunctions *feedbackSPUInit( int id, SPU *child, SPU *self,
        unsigned int context_id,
        unsigned int num_contexts )
{
    (void) context_id;
    (void) num_contexts;

#ifdef CHROMIUM_THREADSAFE
    crInitMutex(&feedback_spu.mutex);
#endif

    feedback_spu.id = id;
    feedback_spu.has_child = 0;
    if (child)
    {
        crSPUInitDispatchTable( &(feedback_spu.child) );
        crSPUCopyDispatchTable( &(feedback_spu.child), &(child->dispatch_table) );
        feedback_spu.has_child = 1;
    }
    crSPUInitDispatchTable( &(feedback_spu.super) );
    crSPUCopyDispatchTable( &(feedback_spu.super), &(self->superSPU->dispatch_table) );
    feedbackspuGatherConfiguration();

    /* create/init default state tracker */
    crStateInit();

    feedback_spu.defaultctx = crStateCreateContext(NULL, 0, NULL);
    crStateSetCurrent(feedback_spu.defaultctx);

    feedback_spu.numContexts = 0;
    crMemZero(feedback_spu.context, CR_MAX_CONTEXTS * sizeof(ContextInfo));

    return &feedback_functions;
}

static void feedbackSPUSelfDispatch(SPUDispatchTable *self)
{
    crSPUInitDispatchTable( &(feedback_spu.self) );
    crSPUCopyDispatchTable( &(feedback_spu.self), self );
}

static int feedbackSPUCleanup(void)
{
    return 1;
}

int SPULoad( char **name, char **super, SPUInitFuncPtr *init,
         SPUSelfDispatchFuncPtr *self, SPUCleanupFuncPtr *cleanup,
         SPUOptionsPtr *options, int *flags )
{
    *name = "feedback";
    *super = "passthrough";
    *init = feedbackSPUInit;
    *self = feedbackSPUSelfDispatch;
    *cleanup = feedbackSPUCleanup;
    *options = feedbackSPUOptions;
    *flags = (SPU_NO_PACKER|SPU_NOT_TERMINAL|SPU_MAX_SERVERS_ZERO);

    return 1;
}