/******************************************************************************\

        Module:     PF_MetaHandler.c                                            

        Purpose:    Performance QD3D metahandler functions                              

        Author:     Sun-Inn Shih                                        

        Copyright (C) 1993-96 Apple Computer, Inc.  All rights reserved.    

\*****************************************************************************/

#include <QD3D.h>

#include <QD3DGeometry.h>

#include <QD3DRenderer.h>

#include <QD3DExtension.h>

#include "IRS_Geometry.h" 

#include "IRS_MetaHandler.h"

#include "IRS_Methods.h"

#include "IRS_Update.h"

/*===========================================================================*\

 *

 *  Routine:    IRS_Geometry_MetaHandler()

 *

 *

 *  kQ3GeometryTypeTriangle

 *  kQ3GeometryTypeLine

 *  kQ3GeometryTypePoint

 *  kQ3GeometryTypeMarker

 *  kQ3GeometryTypePixmapMarker

\*===========================================================================*/

static TQ3XFunctionPointer IRS_Geometry_MetaHandler(

    TQ3XMethodType          pMethodType)

{

    switch (pMethodType)

    {

        /* triangle handler : required */

        case kQ3GeometryTypeTriangle:

            return (TQ3XFunctionPointer) IRS_Geometry_Triangle;

        /* lines : required */

        case kQ3GeometryTypeLine:

            return (TQ3XFunctionPointer) IRS_Geometry_Line;

        /* point handler : required */

        case kQ3GeometryTypePoint:

            return (TQ3XFunctionPointer) IRS_Geometry_Point;

        /* marker handler : required */

        case kQ3GeometryTypeMarker:

            return (TQ3XFunctionPointer) IRS_Geometry_Marker;

        /* pixmapMarker handler : required */

        case kQ3GeometryTypePixmapMarker:

            return (TQ3XFunctionPointer) IRS_Geometry_PixmapMarker;

        /* pixmapMarker handler : required */

        case kQ3GeometryTypeTriMesh :

            return (TQ3XFunctionPointer) IRS_Geometry_TM;

        default:

            return NULL;

    }

}

/*===========================================================================*\

 *

 *  Routine:    IRS_Update_Matrix_MetaHandler()

 *

 *  update

 *

\*===========================================================================*/

static TQ3XFunctionPointer IRS_Update_Matrix_MetaHandler(

    TQ3XMethodType          pMethodType)

{

    switch (pMethodType)

    {

        /* update the local to frustum matrix */

        case kQ3XMethodTypeRendererUpdateMatrixLocalToFrustum:

            return (TQ3XFunctionPointer) IRS_Update_Matrix_localToFrustum;

        default:

            return NULL;

    }

}

/*===========================================================================*\

 *

 *  Routine:    IRSMetaHandler()

 *

 *  Comments:   top level meta handler

 *

\*===========================================================================*/

TQ3XFunctionPointer IRSMetaHandler(

    TQ3XMethodType  pMethodType)

{

    switch (pMethodType)

    {

        /* initialization */

        case kQ3XMethodTypeObjectNew:

            return (TQ3XFunctionPointer) IRSNew;

        /* clean up */

        case kQ3XMethodTypeObjectDelete:

            return (TQ3XFunctionPointer) IRSDelete;

        /* start frame : required */

        case kQ3XMethodTypeRendererStartFrame:

            return (TQ3XFunctionPointer) IRSStartFrame;

        /* end frame: optional */

        case kQ3XMethodTypeRendererEndFrame:

            return (TQ3XFunctionPointer) IRSEndFrame;

        /* start pass : required*/

        case kQ3XMethodTypeRendererStartPass:

            return (TQ3XFunctionPointer) IRSStartPass;

        /* end pass : required */

        case kQ3XMethodTypeRendererEndPass:

            return (TQ3XFunctionPointer) IRSEndPass;

        /* cancel rendering: required*/

        case kQ3XMethodTypeRendererCancel:

            return (TQ3XFunctionPointer) IRSCancel;

        /* to second level metahandlers */

        /*  geometry meta handler: required */

        case kQ3XMethodTypeRendererSubmitGeometryMetaHandler:

            return (TQ3XFunctionPointer) IRS_Geometry_MetaHandler;

        /*  matrix meta handler: optional */

        case kQ3XMethodTypeRendererUpdateMatrixMetaHandler:

            return (TQ3XFunctionPointer) IRS_Update_Matrix_MetaHandler;

        default:

            return NULL;

    }

}