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added PPSSPP's file system directory module for game loading

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This commit is contained in:
ShizZy 2013-09-23 21:50:41 -04:00
parent 3fe49a303d
commit 1af6ae2f48
3 changed files with 138 additions and 10 deletions
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3
src/core/core.vcxproj
View File

@ -137,6 +137,7 @@
<ClCompile Include="src\arm\arminit.cpp" />
<ClCompile Include="src\arm\disassembler\arm_disasm.cpp" />
<ClCompile Include="src\core.cpp" />
<ClCompile Include="src\file_sys\file_sys_directory.cpp" />
<ClCompile Include="src\loader.cpp" />
<ClCompile Include="src\mem_map.cpp" />
<ClCompile Include="src\mem_map_funcs.cpp" />
@ -156,6 +157,8 @@
<ClInclude Include="src\arm\mmu\wb.h" />
<ClInclude Include="src\arm\skyeye_defs.h" />
<ClInclude Include="src\core.h" />
<ClInclude Include="src\file_sys\file_sys.h" />
<ClInclude Include="src\file_sys\file_sys_directory.h" />
<ClInclude Include="src\loader.h" />
<ClInclude Include="src\mem_map.h" />
</ItemGroup>

12
src/core/core.vcxproj.filters
View File

@ -14,6 +14,9 @@
</ClCompile>
<ClCompile Include="src\mem_map_funcs.cpp" />
<ClCompile Include="src\loader.cpp" />
<ClCompile Include="src\file_sys\file_sys_directory.cpp">
<Filter>file_sys</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<Filter Include="arm">
@ -25,6 +28,9 @@
<Filter Include="arm\mmu">
<UniqueIdentifier>{a64d3c8a-747a-491b-b782-6e2622bedf24}</UniqueIdentifier>
</Filter>
<Filter Include="file_sys">
<UniqueIdentifier>{d19a3be3-56c3-4b0b-877c-c68388904bb2}</UniqueIdentifier>
</Filter>
</ItemGroup>
<ItemGroup>
<ClInclude Include="src\arm\disassembler\arm_disasm.h">
@ -69,6 +75,12 @@
<Filter>arm\mmu</Filter>
</ClInclude>
<ClInclude Include="src\loader.h" />
<ClInclude Include="src\file_sys\file_sys.h">
<Filter>file_sys</Filter>
</ClInclude>
<ClInclude Include="src\file_sys\file_sys_directory.h">
<Filter>file_sys</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<None Include="CMakeLists.txt" />

133
src/core/src/file_sys/file_sys_directory.cpp
View File

@ -21,9 +21,9 @@
//#include "ISOFileSystem.h"
//#include "Core/HLE/sceKernel.h"
//#include "file/zip_read.h"
//#include "util/text/utf8.h"
#include "utf8.h"
#ifdef _WIN32
#if EMU_PLATFORM == PLATFORM_WINDOWS
//#include "Common/CommonWindows.h"
#include <sys/stat.h>
#else
@ -33,6 +33,106 @@
#include <ctype.h>
#endif
#if HOST_IS_CASE_SENSITIVE
static bool FixFilenameCase(const std::string &path, std::string &filename)
{
// Are we lucky?
if (File::Exists(path + filename))
return true;
size_t filenameSize = filename.size(); // size in bytes, not characters
for (size_t i = 0; i < filenameSize; i++)
{
filename[i] = tolower(filename[i]);
}
//TODO: lookup filename in cache for "path"
struct dirent_large { struct dirent entry; char padding[FILENAME_MAX+1]; } diren;
struct dirent_large;
struct dirent *result = NULL;
DIR *dirp = opendir(path.c_str());
if (!dirp)
return false;
bool retValue = false;
while (!readdir_r(dirp, (dirent*) &diren, &result) && result)
{
if (strlen(result->d_name) != filenameSize)
continue;
size_t i;
for (i = 0; i < filenameSize; i++)
{
if (filename[i] != tolower(result->d_name[i]))
break;
}
if (i < filenameSize)
continue;
filename = result->d_name;
retValue = true;
}
closedir(dirp);
return retValue;
}
bool FixPathCase(std::string& basePath, std::string &path, FixPathCaseBehavior behavior)
{
size_t len = path.size();
if (len == 0)
return true;
if (path[len - 1] == '/')
{
len--;
if (len == 0)
return true;
}
std::string fullPath;
fullPath.reserve(basePath.size() + len + 1);
fullPath.append(basePath);
size_t start = 0;
while (start < len)
{
size_t i = path.find('/', start);
if (i == std::string::npos)
i = len;
if (i > start)
{
std::string component = path.substr(start, i - start);
// Fix case and stop on nonexistant path component
if (FixFilenameCase(fullPath, component) == false) {
// Still counts as success if partial matches allowed or if this
// is the last component and only the ones before it are required
return (behavior == FPC_PARTIAL_ALLOWED || (behavior == FPC_PATH_MUST_EXIST && i >= len));
}
path.replace(start, i - start, component);
fullPath.append(component);
fullPath.append(1, '/');
}
start = i + 1;
}
return true;
}
#endif
std::string DirectoryFileHandle::GetLocalPath(std::string& basePath, std::string localpath)
{
if (localpath.empty())
@ -50,9 +150,20 @@ std::string DirectoryFileHandle::GetLocalPath(std::string& basePath, std::string
return basePath + localpath;
}
bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, FileAccess access) {
bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, FileAccess access)
{
#if HOST_IS_CASE_SENSITIVE
if (access & (FILEACCESS_APPEND|FILEACCESS_CREATE|FILEACCESS_WRITE))
{
DEBUG_LOG(FILESYS, "Checking case for path %s", fileName.c_str());
if ( ! FixPathCase(basePath, fileName, FPC_PATH_MUST_EXIST) )
return false; // or go on and attempt (for a better error code than just 0?)
}
// else we try fopen first (in case we're lucky) before simulating case insensitivity
#endif
std::string fullName = GetLocalPath(basePath,fileName);
INFO_LOG(FILESYS, "Actually opening %s", fullName.c_str());
INFO_LOG(FILESYS,"Actually opening %s", fullName.c_str());
//TODO: tests, should append seek to end of file? seeking in a file opened for append?
#ifdef _WIN32
@ -74,7 +185,7 @@ bool DirectoryFileHandle::Open(std::string& basePath, std::string& fileName, Fil
openmode = OPEN_EXISTING;
}
//Let's do it!
hFile = CreateFile(fullName.c_str(), desired, sharemode, 0, openmode, 0, 0);
hFile = CreateFile(ConvertUTF8ToWString(fullName).c_str(), desired, sharemode, 0, openmode, 0, 0);
bool success = hFile != INVALID_HANDLE_VALUE;
#else
// Convert flags in access parameter to fopen access mode
@ -268,7 +379,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
// At this point, we should check if the paths match and give an already exists error.
if (from == fullTo)
return SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
return -1;//SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
std::string fullFrom = GetLocalPath(from);
@ -282,7 +393,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
const char * fullToC = fullTo.c_str();
#ifdef _WIN32
bool retValue = (MoveFile(fullFrom.c_str(), fullToC) == TRUE);
bool retValue = (MoveFile(ConvertUTF8ToWString(fullFrom).c_str(), ConvertUTF8ToWString(fullToC).c_str()) == TRUE);
#else
bool retValue = (0 == rename(fullFrom.c_str(), fullToC));
#endif
@ -305,7 +416,7 @@ int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &
#endif
// TODO: Better error codes.
return retValue ? 0 : SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
return retValue ? 0 : -1;//SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
}
bool DirectoryFileSystem::RemoveFile(const std::string &filename) {
@ -439,7 +550,7 @@ PSPFileInfo DirectoryFileSystem::GetFileInfo(std::string filename) {
{
#ifdef _WIN32
struct _stat64i32 s;
_wstat64i32(fullName.c_str(), &s);
_wstat64i32(ConvertUTF8ToWString(fullName).c_str(), &s);
#else
struct stat s;
stat(fullName.c_str(), &s);
@ -559,7 +670,7 @@ void DirectoryFileSystem::DoState(PointerWrap &p) {
}
}
/*
VFSFileSystem::VFSFileSystem(IHandleAllocator *_hAlloc, std::string _basePath) : basePath(_basePath) {
INFO_LOG(FILESYS, "Creating VFS file system");
@ -710,3 +821,5 @@ void VFSFileSystem::DoState(PointerWrap &p) {
ERROR_LOG(FILESYS, "FIXME: Open files during savestate, could go badly.");
}
}
*/