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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "MEM_guardedalloc.h"
#include "BLI_buffer.h"
#include "BLI_utildefines.h"
#include <string.h>
void BLI_buffer_resize(BLI_Buffer *buffer, int new_count)
{
if (new_count > buffer->alloc_count) {
if (buffer->using_static) {
void *orig = buffer->data;
buffer->data = MEM_callocN(buffer->elem_size * new_count,
"BLI_Buffer.data");
memcpy(buffer->data, orig, buffer->elem_size * buffer->count);
buffer->alloc_count = new_count;
buffer->using_static = FALSE;
}
else {
if (new_count < buffer->alloc_count * 2)
buffer->alloc_count *= 2;
else
buffer->alloc_count = new_count;
buffer->data = MEM_reallocN(buffer->data,
(buffer->elem_size *
buffer->alloc_count));
}
}
buffer->count = new_count;
}
void BLI_buffer_free(BLI_Buffer *buffer)
{
if (!buffer->using_static)
MEM_freeN(buffer->data);
memset(buffer, 0, sizeof(*buffer));
}
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