51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
// Copyright 2020 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <array>
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#include <string>
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#include <tuple>
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#include "Common/CommonTypes.h"
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namespace NetPlay
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{
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struct SyncIdentifier
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{
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u64 dol_elf_size = 0;
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std::string game_id;
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u16 revision = 0;
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u8 disc_number = 0;
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bool is_datel = false;
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// This hash is intended to be (but is not guaranteed to be):
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// 1. Identical for discs with no differences that affect netplay/TAS sync
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// 2. Different for discs with differences that affect netplay/TAS sync
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// 3. Much faster than hashing the entire disc
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// The way the hash is calculated may change with updates to Dolphin.
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std::array<u8, 20> sync_hash{};
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bool operator==(const SyncIdentifier& s) const
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{
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return std::tie(dol_elf_size, game_id, revision, disc_number, is_datel, sync_hash) ==
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std::tie(s.dol_elf_size, s.game_id, s.revision, s.disc_number, s.is_datel, s.sync_hash);
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}
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bool operator!=(const SyncIdentifier& s) const { return !operator==(s); }
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};
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// The order of entries in this enum matters, as the lowest value is
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// treated as the "best" available option.
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enum class SyncIdentifierComparison : u8
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{
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SameGame,
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DifferentHash,
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DifferentDiscNumber,
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DifferentRevision,
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DifferentRegion,
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DifferentGame,
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Unknown,
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};
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} // namespace NetPlay
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