mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-20 10:56:50 +01:00
80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
|
/*************************************************************************/
|
||
|
|
/* bitfield_dynamic.cpp */
|
||
|
|
/*************************************************************************/
|
||
|
|
/* This file is part of: */
|
||
|
|
/* GODOT ENGINE */
|
||
|
|
/* https://godotengine.org */
|
||
|
|
/*************************************************************************/
|
||
|
|
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
|
||
|
|
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
|
||
|
|
/* */
|
||
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
||
|
|
/* a copy of this software and associated documentation files (the */
|
||
|
|
/* "Software"), to deal in the Software without restriction, including */
|
||
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
||
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
||
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
||
|
|
/* the following conditions: */
|
||
|
|
/* */
|
||
|
|
/* The above copyright notice and this permission notice shall be */
|
||
|
|
/* included in all copies or substantial portions of the Software. */
|
||
|
|
/* */
|
||
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
||
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
||
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
||
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
||
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
||
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
||
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
#include "bitfield_dynamic.h"
|
||
|
|
|
||
|
|
#include "core/os/memory.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
void BitFieldDynamic::copy_from(const BitFieldDynamic &p_source) {
|
||
|
|
create(p_source.get_num_bits(), false);
|
||
|
|
memcpy(_data, p_source.get_data(), p_source.get_num_bytes());
|
||
|
|
}
|
||
|
|
|
||
|
|
void BitFieldDynamic::create(uint32_t p_num_bits, bool p_blank) {
|
||
|
|
// first delete any initial
|
||
|
|
destroy();
|
||
|
|
|
||
|
|
_num_bits = p_num_bits;
|
||
|
|
if (p_num_bits) {
|
||
|
|
_num_bytes = (p_num_bits / 8) + 1;
|
||
|
|
_data = (uint8_t *)memalloc(_num_bytes);
|
||
|
|
|
||
|
|
if (p_blank) {
|
||
|
|
blank(false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void BitFieldDynamic::destroy() {
|
||
|
|
if (_data) {
|
||
|
|
memfree(_data);
|
||
|
|
_data = nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
_num_bytes = 0;
|
||
|
|
_num_bits = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void BitFieldDynamic::blank(bool p_set_or_zero) {
|
||
|
|
if (p_set_or_zero) {
|
||
|
|
memset(_data, 255, _num_bytes);
|
||
|
|
} else {
|
||
|
|
memset(_data, 0, _num_bytes);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void BitFieldDynamic::invert() {
|
||
|
|
for (uint32_t n = 0; n < _num_bytes; n++) {
|
||
|
|
_data[n] = ~_data[n];
|
||
|
|
}
|
||
|
|
}
|