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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.
*
* The Original Code is Copyright (C) 2012 by Nicholas Bishop
* All rights reserved.
*
* The Original Code is: all of this file.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenlib/intern/bitmap.c
* \ingroup bli
*
* Utility functions for variable size bitmasks.
*/
#include <string.h>
#include <limits.h>
#include "BLI_utildefines.h"
#include "BLI_bitmap.h"
/** Set or clear all bits in the bitmap. */
void BLI_bitmap_set_all(BLI_bitmap *bitmap, bool set, size_t bits)
{
memset(bitmap, set ? UCHAR_MAX : 0, BLI_BITMAP_SIZE(bits));
}
/** Invert all bits in the bitmap. */
void BLI_bitmap_flip_all(BLI_bitmap *bitmap, size_t bits)
{
size_t num_blocks = _BITMAP_NUM_BLOCKS(bits);
for (size_t i = 0; i < num_blocks; i++) {
bitmap[i] ^= ~(BLI_bitmap)0;
}
}
/** Copy all bits from one bitmap to another. */
void BLI_bitmap_copy_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits)
{
memcpy(dst, src, BLI_BITMAP_SIZE(bits));
}
/** Combine two bitmaps with boolean AND. */
void BLI_bitmap_and_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits)
{
size_t num_blocks = _BITMAP_NUM_BLOCKS(bits);
for (size_t i = 0; i < num_blocks; i++) {
dst[i] &= src[i];
}
}
/** Combine two bitmaps with boolean OR. */
void BLI_bitmap_or_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits)
{
size_t num_blocks = _BITMAP_NUM_BLOCKS(bits);
for (size_t i = 0; i < num_blocks; i++) {
dst[i] |= src[i];
}
}
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