mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2024-11-14 13:27:41 -07:00
120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/*
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Copyright 2016-2024 melonDS team
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef DSI_TMD_H
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#define DSI_TMD_H
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#include "types.h"
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#include <array>
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namespace melonDS::DSi_TMD
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{
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struct TitleMetadataContent {
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u8 ContentId[4]; /// Content ID (00,00,00,vv) ;lowercase/hex ;"0000000vv.app"
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u8 ContentIndex[2]; /// Content Index (00,00)
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u8 ContentType[2]; /// Content Type (00,01) ;aka DSi .app
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u8 ContentSize[8]; /// Content Size (00,00,00,00,00,19,E4,00)
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u8 ContentSha1Hash[20]; /// Content SHA1 (on decrypted ".app" file)
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[[nodiscard]] u32 GetVersion() const noexcept
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{
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return (ContentId[0] << 24) | (ContentId[1] << 16) | (ContentId[2] << 8) | ContentId[3];
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}
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};
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static_assert(sizeof(TitleMetadataContent) == 36, "TitleMetadataContent is not 36 bytes!");
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/// Metadata for a DSiWare title.
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/// Used to install DSiWare titles to NAND.
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/// @see https://problemkaputt.de/gbatek.htm#dsisdmmcdsiwareticketsandtitlemetadata
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struct TitleMetadata
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{
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u32 SignatureType;
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u8 Signature[256];
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u8 SignatureAlignment[60];
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char SignatureName[64];
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u8 TmdVersion;
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u8 CaCrlVersion;
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u8 SignerCrlVersion;
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u8 Padding0;
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u8 SystemVersion[8];
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u8 TitleId[8];
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u32 TitleType;
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u8 GroupId[2];
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u8 PublicSaveSize[4];
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u8 PrivateSaveSize[4];
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u8 Padding1[4];
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u8 SrlFlag;
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u8 Padding2[3];
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u8 AgeRatings[16];
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u8 Padding3[30];
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u32 AccessRights;
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u16 TitleVersion;
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u16 NumberOfContents; /// There's always one or zero content entries in practice
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u16 BootContentIndex;
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u8 Padding4[2];
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TitleMetadataContent Contents;
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[[nodiscard]] bool HasPublicSaveData() const noexcept { return GetPublicSaveSize() != 0; }
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[[nodiscard]] bool HasPrivateSaveData() const noexcept { return GetPrivateSaveSize() != 0; }
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[[nodiscard]] u32 GetPublicSaveSize() const noexcept
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{
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return (PublicSaveSize[0] << 24) | (PublicSaveSize[1] << 16) | (PublicSaveSize[2] << 8) | PublicSaveSize[3];
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}
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[[nodiscard]] u32 GetPrivateSaveSize() const noexcept
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{
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return (PrivateSaveSize[0] << 24) | (PrivateSaveSize[1] << 16) | (PrivateSaveSize[2] << 8) | PrivateSaveSize[3];
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}
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[[nodiscard]] u32 GetCategory() const noexcept
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{
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return (TitleId[0] << 24) | (TitleId[1] << 16) | (TitleId[2] << 8) | TitleId[3];
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}
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[[nodiscard]] u32 GetCategoryNoByteswap() const noexcept
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{
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return reinterpret_cast<const u32&>(TitleId);
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}
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[[nodiscard]] u32 GetID() const noexcept
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{
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return (TitleId[4] << 24) | (TitleId[5] << 16) | (TitleId[6] << 8) | TitleId[7];
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}
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[[nodiscard]] u32 GetIDNoByteswap() const noexcept
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{
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return *reinterpret_cast<const u32*>(&TitleId[4]);
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}
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};
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static_assert(sizeof(TitleMetadata) == 520, "TitleMetadata is not 520 bytes!");
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}
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#endif // DSI_TMD_H
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