MissionControl/mc_mitm/source/mcmitm_utils.cpp
2021-02-04 01:30:04 +01:00

40 lines
1.6 KiB
C++

/*
* Copyright (c) 2020-2021 ndeadly
*
* 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/>.
*/
#include "mcmitm_utils.hpp"
namespace ams::mitm::utils {
namespace {
constexpr inline s32 TargetThreadPriorityRangeSize = svc::LowestThreadPriority - svc::HighestThreadPriority + 1;
constexpr inline s32 UserThreadPriorityOffset = 28;
constexpr inline s32 HighestTargetThreadPriority = 0;
constexpr inline s32 LowestTargetThreadPriority = TargetThreadPriorityRangeSize - 1;
}
s32 ConvertToHorizonPriority(s32 user_priority) {
const s32 horizon_priority = user_priority + UserThreadPriorityOffset;
AMS_ASSERT(HighestTargetThreadPriority <= horizon_priority && horizon_priority <= LowestTargetThreadPriority);
return horizon_priority;
}
s32 ConvertToUserPriority(s32 horizon_priority) {
AMS_ASSERT(HighestTargetThreadPriority <= horizon_priority && horizon_priority <= LowestTargetThreadPriority);
return horizon_priority - UserThreadPriorityOffset;
}
}