Merge pull request #3120 from shinyquagsire23/ncch-container-offsets
file_sys/ncch_container: Expose ncch_offset during instantiation and in OpenFile
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commit
dc5d7a802f
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@ -95,12 +95,14 @@ static bool LZSS_Decompress(const u8* compressed, u32 compressed_size, u8* decom
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return true;
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}
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NCCHContainer::NCCHContainer(const std::string& filepath) : filepath(filepath) {
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NCCHContainer::NCCHContainer(const std::string& filepath, u32 ncch_offset)
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: filepath(filepath), ncch_offset(ncch_offset) {
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file = FileUtil::IOFile(filepath, "rb");
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}
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Loader::ResultStatus NCCHContainer::OpenFile(const std::string& filepath) {
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Loader::ResultStatus NCCHContainer::OpenFile(const std::string& filepath, u32 ncch_offset) {
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this->filepath = filepath;
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this->ncch_offset = ncch_offset;
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file = FileUtil::IOFile(filepath, "rb");
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if (!file.IsOpen()) {
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@ -118,7 +120,7 @@ Loader::ResultStatus NCCHContainer::Load() {
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if (file.IsOpen()) {
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// Reset read pointer in case this file has been read before.
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file.Seek(0, SEEK_SET);
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file.Seek(ncch_offset, SEEK_SET);
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if (file.ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header))
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return Loader::ResultStatus::Error;
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@ -126,7 +128,7 @@ Loader::ResultStatus NCCHContainer::Load() {
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// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
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if (Loader::MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) {
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LOG_DEBUG(Service_FS, "Only loading the first (bootable) NCCH within the NCSD file!");
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ncch_offset = 0x4000;
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ncch_offset += 0x4000;
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file.Seek(ncch_offset, SEEK_SET);
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file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
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}
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@ -168,10 +168,10 @@ namespace FileSys {
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*/
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class NCCHContainer {
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public:
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NCCHContainer(const std::string& filepath);
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NCCHContainer(const std::string& filepath, u32 ncch_offset = 0);
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NCCHContainer() {}
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Loader::ResultStatus OpenFile(const std::string& filepath);
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Loader::ResultStatus OpenFile(const std::string& filepath, u32 ncch_offset = 0);
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/**
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* Ensure ExeFS and exheader is loaded and ready for reading sections
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@ -263,7 +263,7 @@ private:
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bool is_loaded = false;
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bool is_compressed = false;
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u32 ncch_offset = 0; // Offset to NCCH header, can be 0 or after NCSD header
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u32 ncch_offset = 0; // Offset to NCCH header, can be 0 for NCCHs or non-zero for CIAs/NCSDs
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u32 exefs_offset = 0;
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std::string filepath;
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