77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/****************************************************************************
|
|
* apps/graphics/traveler/tools/libwld/wld_newplane.c
|
|
* This file contains the logic to allocate memory for a new plane rectangle
|
|
*
|
|
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/*************************************************************************
|
|
* Included files
|
|
*************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include "wld_mem.h"
|
|
#include "wld_plane.h"
|
|
|
|
/*************************************************************************
|
|
* Public Functions
|
|
*************************************************************************/
|
|
|
|
/*************************************************************************
|
|
* Name: wld_new_plane
|
|
* Description:
|
|
* This function allocates memory for a new plane rectangle
|
|
************************************************************************/
|
|
|
|
rect_list_t *wld_new_plane(void)
|
|
{
|
|
rect_list_t *rect;
|
|
|
|
/* Try to get the new structure from the free list */
|
|
|
|
rect = g_free_planes;
|
|
if (rect)
|
|
{
|
|
/* Got get... remove it from the g_free_planes; */
|
|
|
|
g_free_planes = rect->flink;
|
|
}
|
|
else
|
|
{
|
|
/* Nothing on the free list. Allocate a new one */
|
|
|
|
rect = (rect_list_t *)wld_malloc(sizeof(rect_list_t));
|
|
}
|
|
|
|
return rect;
|
|
}
|