Atmosphere/libraries/libvapours/include/vapours/util/util_fourcc.hpp

46 lines
1.9 KiB
C++

/*
* Copyright (c) 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 <vapours/common.hpp>
#include <vapours/assert.hpp>
#include <vapours/util/util_endian.hpp>
namespace ams::util {
template<char A, char B, char C, char D>
struct FourCC {
static constexpr u32 Code = IsLittleEndian() ? ((static_cast<u32>(A) << 0x00) | (static_cast<u32>(B) << 0x08) | (static_cast<u32>(C) << 0x10) | (static_cast<u32>(D) << 0x18))
: ((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[] = {A, B, C, D};
static_assert(sizeof(Code) == 4);
static_assert(sizeof(String) == 4);
};
template<char A, char B, char C, char D>
struct ReverseFourCC {
static constexpr u32 Code = IsLittleEndian() ? ((static_cast<u32>(A) << 0x18) | (static_cast<u32>(B) << 0x10) | (static_cast<u32>(C) << 0x08) | (static_cast<u32>(D) << 0x00))
: ((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[] = {D, C, B, A};
static_assert(sizeof(Code) == 4);
static_assert(sizeof(String) == 4);
};
}