141 lines
4.7 KiB
C
141 lines
4.7 KiB
C
/****************************************************************************
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* apps/graphics/traveler/tools/libwld/wld_saveplanes.c
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* This file contains the logic which stores the world data into the specified
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* file
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/*************************************************************************
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* Included files
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*************************************************************************/
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#include <stdio.h>
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#include "wld_plane.h"
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/*************************************************************************
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* Private Functions
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*************************************************************************/
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/*************************************************************************
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* Name: wld_count_rectangles
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* Description:
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* This function counts the number of rectangles in one plane
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************************************************************************/
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static uint16_t wld_count_rectangles(rect_list_t * rect)
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{
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uint16_t count;
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for (count = 0; (rect); count++, rect = rect->flink);
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return count;
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}
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/*************************************************************************
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* Name: wld_save_worldplane
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* Description:
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* This function stores the world data for one plane
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************************************************************************/
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static uint8_t wld_save_worldplane(FILE * fp, rect_list_t * rect)
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{
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/* For each rectangle in the list */
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for (; (rect); rect = rect->flink)
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{
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/* Write the rectangle to the output file */
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if (fwrite((char *)&rect->d, SIZEOF_RECTDATATYPE, 1, fp) != 1)
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return PLANE_DATA_WRITE_ERROR;
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}
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return PLANE_SUCCESS;
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}
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/*************************************************************************
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* Public Functions
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*************************************************************************/
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/*************************************************************************
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* Name: wld_save_planes
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* Description:
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* This function stores the world data into the specified file
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************************************************************************/
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uint8_t wld_save_planes(const char *wldfile)
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{
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FILE *fp;
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plane_file_header_t fileHeader;
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uint8_t result;
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/* Open the file which contains the description of the world */
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fp = fopen(wldfile, "wb");
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if (!fp)
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{
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return PLANE_WRITE_OPEN_ERROR;
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}
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/* Create world file header */
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fileHeader.num_xrects = wld_count_rectangles(g_xplane_list.head);
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fileHeader.num_yrects = wld_count_rectangles(g_yplane_list.head);
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fileHeader.num_zrects = wld_count_rectangles(g_zplane_list.head);
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/* Write the file header to the output file */
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if (fwrite((char *)&fileHeader, SIZEOF_PLANEFILEHEADERTYPE, 1, fp) != 1)
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{
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result = PLANE_HEADER_WRITE_ERROR;
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}
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/* Save the world, one plane at a time */
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else
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{
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result = wld_save_worldplane(fp, g_xplane_list.head);
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if (result == PLANE_SUCCESS)
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{
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result = wld_save_worldplane(fp, g_yplane_list.head);
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}
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if (result == PLANE_SUCCESS)
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{
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wld_save_worldplane(fp, g_zplane_list.head);
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}
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}
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/* Close the file */
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fclose(fp);
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return result;
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}
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