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util: add fourcc, intrusive list fixes

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This commit is contained in:
Michael Scire 2019-12-10 12:27:19 -08:00
parent 7cead4b620
commit c1d68d7f0d
3 changed files with 53 additions and 2 deletions
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1
libraries/libvapours/include/vapours/util.hpp
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@ -19,6 +19,7 @@
#include "util/util_alignment.hpp"
#include "util/util_size.hpp"
#include "util/util_fourcc.hpp"
#include "util/util_scope_guard.hpp"
#include "util/util_typed_storage.hpp"
#include "util/util_intrusive_list.hpp"

50
libraries/libvapours/include/vapours/util/util_fourcc.hpp Normal file
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@ -0,0 +1,50 @@
/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "../defines.hpp"
namespace ams::util {
template<char A, char B, char C, char D>
struct FourCC {
/* TODO: C++20 std::endian */
static constexpr u32 Code = (static_cast<u32>(A) << 0x18) |
(static_cast<u32>(B) << 0x10) |
(static_cast<u32>(C) << 0x08) |
(static_cast<u32>(D) << 0x00);
static constexpr const char String[] = {D, C, B, A};
static_assert(sizeof(Code) == 4);
static_assert(sizeof(String) == 4);
};
template<char A, char B, char C, char D>
struct ReverseFourCC {
/* TODO: C++20 std::endian */
static constexpr u32 Code = (static_cast<u32>(A) << 0x00) |
(static_cast<u32>(B) << 0x08) |
(static_cast<u32>(C) << 0x10) |
(static_cast<u32>(D) << 0x18);
static constexpr const char String[] = {A, B, C, D};
static_assert(sizeof(Code) == 4);
static_assert(sizeof(String) == 4);
};
}

4
libraries/libvapours/include/vapours/util/util_intrusive_list.hpp
View file

@ -68,9 +68,9 @@ namespace ams::util {
/* Splice a range into the list. */
auto last_prev = last->prev;
first->prev = this;
this->next = first;
last_prev->next = next;
this->next->prev = last_prev;
this->next = first;
}
void Unlink() {
@ -500,7 +500,7 @@ namespace ams::util {
}
void push_front(reference ref) {
this->impl.push_back(GetNode(ref));
this->impl.push_front(GetNode(ref));
}
void pop_back() {