platform/vfs.c: add option path redirection
Optional for now, since not all games or configurations may need it. It may be better eventually to refactor hooklib/path.c to allow for static path remapping, to minimize boilerplate code around the functions.
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2
dist/chuni/segatools.ini
vendored
2
dist/chuni/segatools.ini
vendored
@ -1,6 +1,8 @@
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[vfs]
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; Insert the path to the game AMFS directory here (contains ICF1 and ICF2)
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amfs=
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; Insert the path to the game Option directory here (contains Axxx directories)
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option=
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; Create an empty directory somewhere and insert the path here.
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; This directory may be shared between multiple SEGA games.
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; NOTE: This has nothing to do with Windows %APPDATA%.
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2
dist/idz/segatools.ini
vendored
2
dist/idz/segatools.ini
vendored
@ -1,6 +1,8 @@
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[vfs]
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; Insert the path to the game AMFS directory here (contains ICF1 and ICF2)
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amfs=
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; Insert the path to the game Option directory here (contains OPxx directories)
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option=
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; Create an empty directory somewhere and insert the path here.
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; This directory may be shared between multiple SEGA games.
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; NOTE: This has nothing to do with Windows %APPDATA%.
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@ -295,5 +295,13 @@ void vfs_config_load(struct vfs_config *cfg, const wchar_t *filename)
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cfg->appdata,
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_countof(cfg->appdata),
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filename);
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GetPrivateProfileStringW(
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L"vfs",
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L"option",
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L"",
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cfg->option,
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_countof(cfg->option),
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filename);
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}
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@ -19,6 +19,10 @@ static HRESULT vfs_path_hook_nthome(
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const wchar_t *src,
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wchar_t *dest,
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size_t *count);
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static HRESULT vfs_path_hook_option(
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const wchar_t *src,
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wchar_t *dest,
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size_t *count);
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static HRESULT vfs_reg_read_amfs(void *bytes, uint32_t *nbytes);
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static HRESULT vfs_reg_read_appdata(void *bytes, uint32_t *nbytes);
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@ -26,6 +30,9 @@ static wchar_t vfs_nthome_real[MAX_PATH];
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static const wchar_t vfs_nthome[] = L"C:\\Documents and Settings\\AppUser\\";
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static const size_t vfs_nthome_len = _countof(vfs_nthome) - 1;
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static const wchar_t vfs_option[] = L"C:\\Mount\\Option\\";
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static const size_t vfs_option_len = _countof(vfs_option) - 1;
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static const struct reg_hook_val vfs_reg_vals[] = {
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{
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.name = L"AMFS",
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@ -65,6 +72,10 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
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return E_FAIL;
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}
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if (config->option[0] == L'\0') {
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dprintf("Vfs: WARNING: OPTION path not specified in INI file\n");
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}
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home_ok = GetEnvironmentVariableW(
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L"USERPROFILE",
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vfs_nthome_real,
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@ -80,9 +91,13 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
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memcpy(&vfs_config, config, sizeof(*config));
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vfs_slashify(vfs_nthome_real, _countof(vfs_nthome_real));
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vfs_slashify(vfs_config.amfs, _countof(vfs_config.amfs));
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vfs_slashify(vfs_config.appdata, _countof(vfs_config.appdata));
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vfs_slashify(vfs_nthome_real, _countof(vfs_nthome_real));
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if (vfs_config.option[0] != L'\0') {
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vfs_slashify(vfs_config.option, _countof(vfs_config.option));
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}
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hr = vfs_mkdir_rec(vfs_config.amfs);
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@ -114,6 +129,8 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
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dprintf("Vfs: Failed to create %S: %x\n", temp, (int) hr);
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}
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/* Not auto-creating option directory as it is normally a read-only mount */
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hr = path_hook_push(vfs_path_hook);
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if (FAILED(hr)) {
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@ -126,6 +143,14 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
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return hr;
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}
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if (vfs_config.option[0] != L'\0') {
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hr = path_hook_push(vfs_path_hook_option);
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if (FAILED(hr)) {
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return hr;
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}
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}
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hr = reg_hook_push_key(
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HKEY_LOCAL_MACHINE,
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L"SYSTEM\\SEGA\\SystemProperty\\mount",
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@ -241,7 +266,7 @@ static HRESULT vfs_path_hook(const wchar_t *src, wchar_t *dest, size_t *count)
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return S_FALSE;
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}
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/* Cut off E:\ prefix, replace with redir path, count NUL terminator */
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/* Cut off <prefix>\, replace with redir path, count NUL terminator */
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redir_len = wcslen(redir);
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required = wcslen(src) - 3 + redir_len + 1;
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@ -296,6 +321,42 @@ static HRESULT vfs_path_hook_nthome(
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return S_OK;
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}
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static HRESULT vfs_path_hook_option(
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const wchar_t *src,
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wchar_t *dest,
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size_t *count)
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{
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size_t required;
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size_t redir_len;
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assert(src != NULL);
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assert(count != NULL);
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/* Case-insensitive check to see if src starts with vfs_option */
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if (path_compare_w(src, vfs_option, vfs_option_len) != 0) {
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return S_FALSE;
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}
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/* Cut off the matched prefix, add the replaced prefix, count NUL */
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redir_len = wcslen(vfs_config.option);
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required = wcslen(src) - vfs_option_len + redir_len + 1;
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if (dest != NULL) {
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if (required > *count) {
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return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
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}
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wcscpy_s(dest, *count, vfs_config.option);
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wcscpy_s(dest + redir_len, *count - redir_len, src + vfs_option_len);
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}
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*count = required;
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return S_OK;
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}
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static HRESULT vfs_reg_read_amfs(void *bytes, uint32_t *nbytes)
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{
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return reg_hook_read_wstr(bytes, nbytes, vfs_config.amfs);
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@ -9,6 +9,7 @@ struct vfs_config {
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bool enable;
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wchar_t amfs[MAX_PATH];
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wchar_t appdata[MAX_PATH];
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wchar_t option[MAX_PATH];
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};
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HRESULT vfs_hook_init(const struct vfs_config *config);
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