forked from eden-emu/eden
Loader: Keep a reference to the file and pass it to the correct AppLoader, instead of loading it multiple times.
This commit is contained in:
Emmanuel Gil Peyrot
parent
2d63df90a9
commit
b5237e885d
8 changed files with 130 additions and 190 deletions
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@ -4,8 +4,6 @@
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#include <memory>
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#include "common/file_util.h"
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#include "core/loader/ncch.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/mem_map.h"
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@ -99,15 +97,6 @@ static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompresse
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// AppLoader_NCCH class
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/// AppLoader_NCCH constructor
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AppLoader_NCCH::AppLoader_NCCH(const std::string& filename) {
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this->filename = filename;
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}
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/// AppLoader_NCCH destructor
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AppLoader_NCCH::~AppLoader_NCCH() {
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}
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ResultStatus AppLoader_NCCH::LoadExec() const {
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if (!is_loaded)
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return ResultStatus::ErrorNotLoaded;
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@ -123,108 +112,100 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
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ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const {
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// Iterate through the ExeFs archive until we find the .code file...
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FileUtil::IOFile file(filename, "rb");
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if (file.IsOpen()) {
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LOG_DEBUG(Loader, "%d sections:", kMaxSections);
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for (int i = 0; i < kMaxSections; i++) {
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// Load the specified section...
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if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
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LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
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exefs_header.section[i].offset, exefs_header.section[i].size,
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exefs_header.section[i].name);
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s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
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sizeof(ExeFs_Header)+ncch_offset);
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file.Seek(section_offset, 0);
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// Section is compressed...
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if (i == 0 && is_compressed) {
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// Read compressed .code section...
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std::unique_ptr<u8[]> temp_buffer;
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try {
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temp_buffer.reset(new u8[exefs_header.section[i].size]);
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} catch (std::bad_alloc&) {
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return ResultStatus::ErrorMemoryAllocationFailed;
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}
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file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size);
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// Decompress .code section...
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u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0],
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exefs_header.section[i].size);
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buffer.resize(decompressed_size);
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if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0],
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decompressed_size)) {
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return ResultStatus::ErrorInvalidFormat;
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}
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// Section is uncompressed...
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}
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else {
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buffer.resize(exefs_header.section[i].size);
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file.ReadBytes(&buffer[0], exefs_header.section[i].size);
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}
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return ResultStatus::Success;
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}
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}
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} else {
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LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
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if (!file->IsOpen())
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return ResultStatus::Error;
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LOG_DEBUG(Loader, "%d sections:", kMaxSections);
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for (int i = 0; i < kMaxSections; i++) {
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// Load the specified section...
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if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
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LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
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exefs_header.section[i].offset, exefs_header.section[i].size,
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exefs_header.section[i].name);
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s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
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sizeof(ExeFs_Header)+ncch_offset);
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file->Seek(section_offset, 0);
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// Section is compressed...
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if (i == 0 && is_compressed) {
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// Read compressed .code section...
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std::unique_ptr<u8[]> temp_buffer;
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try {
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temp_buffer.reset(new u8[exefs_header.section[i].size]);
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} catch (std::bad_alloc&) {
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return ResultStatus::ErrorMemoryAllocationFailed;
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}
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file->ReadBytes(&temp_buffer[0], exefs_header.section[i].size);
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// Decompress .code section...
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u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0],
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exefs_header.section[i].size);
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buffer.resize(decompressed_size);
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if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0],
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decompressed_size)) {
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return ResultStatus::ErrorInvalidFormat;
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}
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// Section is uncompressed...
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}
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else {
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buffer.resize(exefs_header.section[i].size);
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file->ReadBytes(&buffer[0], exefs_header.section[i].size);
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}
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return ResultStatus::Success;
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}
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}
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return ResultStatus::ErrorNotUsed;
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}
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ResultStatus AppLoader_NCCH::Load() {
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LOG_INFO(Loader, "Loading NCCH file %s...", filename.c_str());
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if (is_loaded)
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return ResultStatus::ErrorAlreadyLoaded;
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FileUtil::IOFile file(filename, "rb");
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if (file.IsOpen()) {
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file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
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if (!file->IsOpen())
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return ResultStatus::Error;
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// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
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if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
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LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
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ncch_offset = 0x4000;
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file.Seek(ncch_offset, 0);
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file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
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}
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file->ReadBytes(&ncch_header, sizeof(NCCH_Header));
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// Verify we are loading the correct file type...
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if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
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return ResultStatus::ErrorInvalidFormat;
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// Read ExHeader...
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file.ReadBytes(&exheader_header, sizeof(ExHeader_Header));
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is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
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entry_point = exheader_header.codeset_info.text.address;
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LOG_INFO(Loader, "Name: %s", exheader_header.codeset_info.name);
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LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
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LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point);
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// Read ExeFS...
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exefs_offset = ncch_header.exefs_offset * kBlockSize;
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u32 exefs_size = ncch_header.exefs_size * kBlockSize;
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LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
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LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
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file.Seek(exefs_offset + ncch_offset, 0);
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file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
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LoadExec(); // Load the executable into memory for booting
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is_loaded = true; // Set state to loaded
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return ResultStatus::Success;
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} else {
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LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
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// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
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if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
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LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
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ncch_offset = 0x4000;
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file->Seek(ncch_offset, 0);
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file->ReadBytes(&ncch_header, sizeof(NCCH_Header));
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}
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return ResultStatus::Error;
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// Verify we are loading the correct file type...
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if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
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return ResultStatus::ErrorInvalidFormat;
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// Read ExHeader...
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file->ReadBytes(&exheader_header, sizeof(ExHeader_Header));
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is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
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entry_point = exheader_header.codeset_info.text.address;
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LOG_INFO(Loader, "Name: %s", exheader_header.codeset_info.name);
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LOG_DEBUG(Loader, "Code compressed: %s", is_compressed ? "yes" : "no");
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LOG_DEBUG(Loader, "Entry point: 0x%08X", entry_point);
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// Read ExeFS...
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exefs_offset = ncch_header.exefs_offset * kBlockSize;
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u32 exefs_size = ncch_header.exefs_size * kBlockSize;
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LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
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LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
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file->Seek(exefs_offset + ncch_offset, 0);
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file->ReadBytes(&exefs_header, sizeof(ExeFs_Header));
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LoadExec(); // Load the executable into memory for booting
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is_loaded = true; // Set state to loaded
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return ResultStatus::Success;
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}
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ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) const {
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@ -244,29 +225,26 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) const {
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}
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ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
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FileUtil::IOFile file(filename, "rb");
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if (file.IsOpen()) {
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// Check if the NCCH has a RomFS...
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if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
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u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
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u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
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if (!file->IsOpen())
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return ResultStatus::Error;
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LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
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LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
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// Check if the NCCH has a RomFS...
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if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
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u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
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u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000;
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buffer.resize(romfs_size);
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LOG_DEBUG(Loader, "RomFS offset: 0x%08X", romfs_offset);
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LOG_DEBUG(Loader, "RomFS size: 0x%08X", romfs_size);
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file.Seek(romfs_offset, 0);
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file.ReadBytes(&buffer[0], romfs_size);
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buffer.resize(romfs_size);
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return ResultStatus::Success;
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}
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LOG_DEBUG(Loader, "NCCH has no RomFS");
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return ResultStatus::ErrorNotUsed;
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} else {
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LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
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file->Seek(romfs_offset, 0);
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file->ReadBytes(&buffer[0], romfs_size);
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return ResultStatus::Success;
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}
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return ResultStatus::Error;
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LOG_DEBUG(Loader, "NCCH has no RomFS");
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return ResultStatus::ErrorNotUsed;
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}
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u64 AppLoader_NCCH::GetProgramId() const {
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