source: vbox/trunk/src/VBox/Additions/common/crOpenGL/feedback/feedbackspu_init.c@ 78408

/* 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_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;

    crInitMutex(&feedback_spu.mutex);
        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.StateTracker);

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

DECLHIDDEN(const SPUREG) g_FeedbackSpuReg =
{
    /** pszName. */
    "feedback",
    /** pszSuperName. */
    "passthrough",
    /** fFlags. */
    SPU_NO_PACKER | SPU_NOT_TERMINAL | SPU_MAX_SERVERS_ZERO,
    /** pfnInit. */
    feedbackSPUInit,
    /** pfnDispatch. */
    feedbackSPUSelfDispatch, 
    /** pfnCleanup. */
    feedbackSPUCleanup
};