/**************************************************************************
# Copyright (C) 1994 Kubota Graphics Corp.
# 
# Permission to use, copy, modify, and distribute this material for
# any purpose and without fee is hereby granted, provided that the
# above copyright notice and this permission notice appear in all
# copies, and that the name of Kubota Graphics not be used in
# advertising or publicity pertaining to this material.  Kubota
# Graphics Corporation MAKES NO REPRESENTATIONS ABOUT THE ACCURACY
# OR SUITABILITY OF THIS MATERIAL FOR ANY PURPOSE.  IT IS PROVIDED
# "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE AND KUBOTA GRAPHICS CORPORATION DISCLAIMS ALL WARRANTIES,
# EXPRESS OR IMPLIED.
**************************************************************************/
 
/*
  ======================================================================
  Functions:
        ddt_g4vll_drom_quadlst * ddr_g4vll_drom_quadlst_create (object)
        void ddr_g4vll_drom_quadlst_print (object, data)
        void ddr_g4vll_drom_quadlst_delete (object, data)
	void ddr_g4vll_drom_quadlst_render (object)

  ======================================================================
 */
#include "drom.h"
#include <dore/internal/system.h>
#include <dore/dore_develop/private/quadlst.h>

/*
 ======================================================================
 */

static DtInt classid = -1;
static DtInt dataindex = -1;

/* ====================================================================== */

ddt_g4vll_drom_quadlst *ddr_g4vll_drom_quadlst_create (
    DtObjectStructure *object)
{
    struct quadlst *quadlst;
    ddt_g4vll_drom_quadlst *drom_quadlst;
    int i;

    quadlst = (struct quadlst *)(object->data);

    drom_quadlst =  (ddt_g4vll_drom_quadlst *)
            DDspace_Allocate(sizeof(ddt_g4vll_drom_quadlst));

    if (quadlst->uv_count > 0) {
        drom_quadlst->bboxuv = (ddt_g4vll_drom_bboxuv *)DDspace_Allocate
                (quadlst->uv_count *sizeof(ddt_g4vll_drom_bboxuv));

        for (i=0; i< quadlst->uv_count; i++) {
            drom_quadlst->bboxuv[i].initialized = DcFalse;
        }
    } else {
        drom_quadlst->bboxuv = (ddt_g4vll_drom_bboxuv *)0;
    }

    if (quadlst->uvw_count > 0) {
        drom_quadlst->bboxuvw = (ddt_g4vll_drom_bboxuvw *)DDspace_Allocate
                (quadlst->uvw_count *sizeof(ddt_g4vll_drom_bboxuvw));

        for (i=0; i< quadlst->uvw_count; i++) {
            drom_quadlst->bboxuvw[i].initialized = DcFalse;
        }
    } else {
        drom_quadlst->bboxuvw = (ddt_g4vll_drom_bboxuvw *)0;
    }

    return drom_quadlst;
}

/* ====================================================================== */

void ddr_g4vll_drom_quadlst_print (
    DtObject object,
    DtInt *data)
{
    return;
}

/* ====================================================================== */

void ddr_g4vll_drom_quadlst_delete (
    DtObject object,
    ddt_g4vll_drom_quadlst *data)
{
    if (data != (ddt_g4vll_drom_quadlst *)0) {
        if (data->bboxuv != (ddt_g4vll_drom_bboxuv *)0) {
            DDspace_Deallocate(data->bboxuv);
        }
        if (data->bboxuvw != (ddt_g4vll_drom_bboxuvw *)0) {
            DDspace_Deallocate(data->bboxuvw);
        }

        DDspace_Deallocate(data);
    }
}
/*
  ======================================================================
 */
void ddr_g4vll_drom_quadlst_render (
    dot_object *object)
{
    extern DtRealCouple *dde_g4vll_quad_list_bboxuv;
    extern DtRealTriple *dde_g4vll_quad_list_bboxuvw;
    struct quadlst *quadlst;
    DtInt i;
    ddt_g4vll_drom_quadlst *drom_quadlst;
    ddt_g4vll_drom_bboxuv *bboxuv;
    ddt_g4vll_drom_bboxuvw *bboxuvw;
    DtInt idx;
    
    if (classid == -1) 
	classid = DsInqClassId ("DoQuadList");

    /* Determine index into quad list's additional data */
    if (dataindex == -1) {
        for (i=0; dde_g4vll_drom_class_data[i].name != 0; i++) {
            if (dde_g4vll_drom_class_data[i].id == classid) {
                dataindex = dde_g4vll_drom_class_data[i].index;
                break;
            }
        }
    }

    if (!DDcondex_QueryRender(classid))
	return;

    quadlst = (struct quadlst *)(object->data);
    drom_quadlst = (ddt_g4vll_drom_quadlst *)
		   object->additional_data [dataindex];

    /* Store the object's handle globally for its output routine.  */

    dde_g4vll_drom_quadlst = drom_quadlst;

    if (quadlst->uv_count > 0 && dde_g4vll_drom_data.texture_2D_valid) {
        idx = quadlst->uv_count > dde_g4vll_drom_data.map_diffuse_color_uv_index ?
                dde_g4vll_drom_data.map_diffuse_color_uv_index : 0;

        bboxuv = &(drom_quadlst->bboxuv[idx]);

        if (!bboxuv->initialized) {
            DtReal umin, umax, vmin, vmax;

            /* This bounding box has not been set yet, so compute it.  */

            umin = umax = quadlst->uv_list[idx][0][0];
            vmin = vmax = quadlst->uv_list[idx][0][1];

            for (i=1; i< quadlst->quad_count*4; i++) {
                umin = min(umin, quadlst->uv_list[idx][i][0]);
                umax = max(umax, quadlst->uv_list[idx][i][0]);
                vmin = min(vmin, quadlst->uv_list[idx][i][1]);
                vmax = max(vmax, quadlst->uv_list[idx][i][1]);
            }

            bboxuv->bbox[0][0] = umin;
            bboxuv->bbox[0][1] = vmin;

            bboxuv->bbox[1][0] = umin;
            bboxuv->bbox[1][1] = vmax;

            bboxuv->bbox[2][0] = umax;
            bboxuv->bbox[2][1] = vmax;

            bboxuv->bbox[3][0] = umax;
            bboxuv->bbox[3][1] = vmin;

	    bboxuv->initialized = DcTrue;
        }
        dde_g4vll_quad_list_bboxuv = bboxuv->bbox;
    }

    if (quadlst->uvw_count > 0 && dde_g4vll_drom_data.texture_3D_valid) {
        idx = quadlst->uvw_count > dde_g4vll_drom_data.map_diffuse_color_uvw_index ?
                dde_g4vll_drom_data.map_diffuse_color_uvw_index : 0;

        bboxuvw = &(drom_quadlst->bboxuvw[idx]);

        if (!bboxuvw->initialized) {
            DtReal umin, umax, vmin, vmax, wmin, wmax;

            /* This bounding box has not been set yet, so compute it. */

            umin = umax = quadlst->uvw_list[idx][0][0];
            vmin = vmax = quadlst->uvw_list[idx][0][1];
            wmin = wmax = quadlst->uvw_list[idx][0][2];

            for (i=1; i< quadlst->quad_count*4; i++) {
                umin = min(umin, quadlst->uvw_list[idx][i][0]);
                umax = max(umax, quadlst->uvw_list[idx][i][0]);
                vmin = min(vmin, quadlst->uvw_list[idx][i][1]);
                vmax = max(vmax, quadlst->uvw_list[idx][i][1]);
                wmin = min(wmin, quadlst->uvw_list[idx][i][2]);
                wmax = max(wmax, quadlst->uvw_list[idx][i][2]);
            }

            bboxuvw->bbox[0][0] = umin;
            bboxuvw->bbox[0][1] = vmin;
            bboxuvw->bbox[0][2] = wmin;

            bboxuvw->bbox[1][0] = umin;
            bboxuvw->bbox[1][1] = vmax;
            bboxuvw->bbox[1][2] = wmin;

            bboxuvw->bbox[2][0] = umax;
            bboxuvw->bbox[2][1] = vmax;
            bboxuvw->bbox[2][2] = wmin;

            bboxuvw->bbox[3][0] = umax;
            bboxuvw->bbox[3][1] = vmin;
            bboxuvw->bbox[3][2] = wmin;

            bboxuvw->bbox[4][0] = umin;
            bboxuvw->bbox[4][1] = vmin;
            bboxuvw->bbox[4][2] = wmax;

            bboxuvw->bbox[5][0] = umin;
            bboxuvw->bbox[5][1] = vmax;
            bboxuvw->bbox[5][2] = wmax;

            bboxuvw->bbox[6][0] = umax;
            bboxuvw->bbox[6][1] = vmax;
            bboxuvw->bbox[6][2] = wmax;

            bboxuvw->bbox[7][0] = umax;
            bboxuvw->bbox[7][1] = vmin;
            bboxuvw->bbox[7][2] = wmax;

	    bboxuvw->initialized = DcTrue;
        }
        dde_g4vll_quad_list_bboxuvw = bboxuvw->bbox;
    }

    if (doe_system_timing_display_traverse_count == 1)
        doe_system_timing_quads_drawn += quadlst->quad_count;

    ddr_g4vll_drom_render_quad_list (DcRGB,
				   quadlst->bounding_box_pts,
				   quadlst->quad_count,
				   quadlst->element_normal,
				   quadlst->vertex_location,
				   quadlst->vertex_normal,
				   quadlst->vertex_color,
				   quadlst->uv_count,
				   quadlst->uv_list,
				   quadlst->uvw_count,
				   quadlst->uvw_list,
				   quadlst->vertex_alpha);

    dde_g4vll_quad_list_bboxuv  = DcNullPtr;
    dde_g4vll_quad_list_bboxuvw = DcNullPtr;
    dde_g4vll_drom_quadlst = DcNullPtr;
}
