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https://github.com/yuzu-emu/yuzu.git
synced 2024-09-01 22:39:04 +00:00
added PPSSPP's file system directory module for game loading
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parent
3fe49a303d
commit
1af6ae2f48
@ -137,6 +137,7 @@
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<ClCompile Include="src\arm\arminit.cpp" />
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<ClCompile Include="src\arm\disassembler\arm_disasm.cpp" />
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<ClCompile Include="src\core.cpp" />
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<ClCompile Include="src\file_sys\file_sys_directory.cpp" />
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<ClCompile Include="src\loader.cpp" />
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<ClCompile Include="src\mem_map.cpp" />
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<ClCompile Include="src\mem_map_funcs.cpp" />
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@ -156,6 +157,8 @@
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<ClInclude Include="src\arm\mmu\wb.h" />
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<ClInclude Include="src\arm\skyeye_defs.h" />
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<ClInclude Include="src\core.h" />
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<ClInclude Include="src\file_sys\file_sys.h" />
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<ClInclude Include="src\file_sys\file_sys_directory.h" />
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<ClInclude Include="src\loader.h" />
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<ClInclude Include="src\mem_map.h" />
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</ItemGroup>
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@ -14,6 +14,9 @@
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</ClCompile>
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<ClCompile Include="src\mem_map_funcs.cpp" />
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<ClCompile Include="src\loader.cpp" />
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<ClCompile Include="src\file_sys\file_sys_directory.cpp">
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<Filter>file_sys</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<Filter Include="arm">
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@ -25,6 +28,9 @@
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<Filter Include="arm\mmu">
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<UniqueIdentifier>{a64d3c8a-747a-491b-b782-6e2622bedf24}</UniqueIdentifier>
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</Filter>
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<Filter Include="file_sys">
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<UniqueIdentifier>{d19a3be3-56c3-4b0b-877c-c68388904bb2}</UniqueIdentifier>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="src\arm\disassembler\arm_disasm.h">
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@ -69,6 +75,12 @@
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<Filter>arm\mmu</Filter>
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</ClInclude>
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<ClInclude Include="src\loader.h" />
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<ClInclude Include="src\file_sys\file_sys.h">
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<Filter>file_sys</Filter>
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</ClInclude>
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<ClInclude Include="src\file_sys\file_sys_directory.h">
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<Filter>file_sys</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<None Include="CMakeLists.txt" />
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@ -21,9 +21,9 @@
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//#include "ISOFileSystem.h"
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//#include "Core/HLE/sceKernel.h"
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//#include "file/zip_read.h"
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//#include "util/text/utf8.h"
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#include "utf8.h"
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#ifdef _WIN32
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#if EMU_PLATFORM == PLATFORM_WINDOWS
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//#include "Common/CommonWindows.h"
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#include <sys/stat.h>
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#else
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@ -33,6 +33,106 @@
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#include <ctype.h>
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#endif
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#if HOST_IS_CASE_SENSITIVE
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static bool FixFilenameCase(const std::string &path, std::string &filename)
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{
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// Are we lucky?
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if (File::Exists(path + filename))
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return true;
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size_t filenameSize = filename.size(); // size in bytes, not characters
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for (size_t i = 0; i < filenameSize; i++)
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{
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filename[i] = tolower(filename[i]);
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}
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//TODO: lookup filename in cache for "path"
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struct dirent_large { struct dirent entry; char padding[FILENAME_MAX+1]; } diren;
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struct dirent_large;
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struct dirent *result = NULL;
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DIR *dirp = opendir(path.c_str());
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if (!dirp)
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return false;
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bool retValue = false;
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while (!readdir_r(dirp, (dirent*) &diren, &result) && result)
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{
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if (strlen(result->d_name) != filenameSize)
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continue;
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size_t i;
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for (i = 0; i < filenameSize; i++)
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{
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if (filename[i] != tolower(result->d_name[i]))
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break;
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}
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if (i < filenameSize)
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continue;
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filename = result->d_name;
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retValue = true;
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}
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closedir(dirp);
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return retValue;
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}
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bool FixPathCase(std::string& basePath, std::string &path, FixPathCaseBehavior behavior)
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{
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size_t len = path.size();
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if (len == 0)
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return true;
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if (path[len - 1] == '/')
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{
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len--;
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if (len == 0)
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return true;
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}
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std::string fullPath;
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fullPath.reserve(basePath.size() + len + 1);
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fullPath.append(basePath);
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size_t start = 0;
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while (start < len)
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{
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size_t i = path.find('/', start);
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if (i == std::string::npos)
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i = len;
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if (i > start)
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{
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std::string component = path.substr(start, i - start);
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// Fix case and stop on nonexistant path component
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if (FixFilenameCase(fullPath, component) == false) {
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// Still counts as success if partial matches allowed or if this
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// is the last component and only the ones before it are required
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return (behavior == FPC_PARTIAL_ALLOWED || (behavior == FPC_PATH_MUST_EXIST && i >= len));
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}
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path.replace(start, i - start, component);
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fullPath.append(component);
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fullPath.append(1, '/');
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}
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start = i + 1;
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}
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return true;
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}
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#endif
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std::string DirectoryFileHandle::GetLocalPath(std::string& basePath, std::string localpath)
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{
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if (localpath.empty())
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@ -50,9 +150,20 @@ std::string DirectoryFileHandle::GetLocalPath(std::string& basePath, std::string
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return basePath + localpath;
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}
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bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, FileAccess access) {
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bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, FileAccess access)
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{
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#if HOST_IS_CASE_SENSITIVE
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if (access & (FILEACCESS_APPEND|FILEACCESS_CREATE|FILEACCESS_WRITE))
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{
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DEBUG_LOG(FILESYS, "Checking case for path %s", fileName.c_str());
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if ( ! FixPathCase(basePath, fileName, FPC_PATH_MUST_EXIST) )
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return false; // or go on and attempt (for a better error code than just 0?)
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}
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// else we try fopen first (in case we're lucky) before simulating case insensitivity
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#endif
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std::string fullName = GetLocalPath(basePath,fileName);
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INFO_LOG(FILESYS, "Actually opening %s", fullName.c_str());
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INFO_LOG(FILESYS,"Actually opening %s", fullName.c_str());
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//TODO: tests, should append seek to end of file? seeking in a file opened for append?
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#ifdef _WIN32
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@ -74,7 +185,7 @@ bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, Fil
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openmode = OPEN_EXISTING;
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}
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//Let's do it!
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hFile = CreateFile(fullName.c_str(), desired, sharemode, 0, openmode, 0, 0);
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hFile = CreateFile(ConvertUTF8ToWString(fullName).c_str(), desired, sharemode, 0, openmode, 0, 0);
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bool success = hFile != INVALID_HANDLE_VALUE;
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#else
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// Convert flags in access parameter to fopen access mode
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@ -268,7 +379,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
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// At this point, we should check if the paths match and give an already exists error.
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if (from == fullTo)
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return SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
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return -1;//SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
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std::string fullFrom = GetLocalPath(from);
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@ -282,7 +393,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
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const char * fullToC = fullTo.c_str();
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#ifdef _WIN32
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bool retValue = (MoveFile(fullFrom.c_str(), fullToC) == TRUE);
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bool retValue = (MoveFile(ConvertUTF8ToWString(fullFrom).c_str(), ConvertUTF8ToWString(fullToC).c_str()) == TRUE);
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#else
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bool retValue = (0 == rename(fullFrom.c_str(), fullToC));
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#endif
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@ -305,7 +416,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
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#endif
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// TODO: Better error codes.
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return retValue ? 0 : SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
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return retValue ? 0 : -1;//SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
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}
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bool DirectoryFileSystem::RemoveFile(const std::string &filename) {
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@ -439,7 +550,7 @@ PSPFileInfo DirectoryFileSystem::GetFileInfo(std::string filename) {
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{
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#ifdef _WIN32
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struct _stat64i32 s;
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_wstat64i32(fullName.c_str(), &s);
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_wstat64i32(ConvertUTF8ToWString(fullName).c_str(), &s);
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#else
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struct stat s;
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stat(fullName.c_str(), &s);
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@ -559,7 +670,7 @@ void DirectoryFileSystem::DoState(PointerWrap &p) {
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}
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}
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/*
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VFSFileSystem::VFSFileSystem(IHandleAllocator *_hAlloc, std::string _basePath) : basePath(_basePath) {
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INFO_LOG(FILESYS, "Creating VFS file system");
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@ -710,3 +821,5 @@ void VFSFileSystem::DoState(PointerWrap &p) {
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ERROR_LOG(FILESYS, "FIXME: Open files during savestate, could go badly.");
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}
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}
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*/
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