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グローランプ 89bd77e306 IO: Resolve IO DLL paths from environment variables (#119)
## Summary

Adds a unified mechanism for locating third-party IO DLLs through environment
variables, on top of the existing per-game `[xxxio] path=` INI setting.

## Changes

For each IO DLL, the path is resolved in this order:

1. The section-specific INI value, e.g. `[mai2io] path=`.
2. The section-specific environment variable, e.g. `SEGATOOLS_MAI2IO_PATH`.
3. `SEGATOOLS_IO_ROOT` joined with the default IO DLL filename, e.g.
   `%SEGATOOLS_IO_ROOT%\mai2io.dll`.
4. Empty path, which keeps the built-in IO implementation (unchanged default).

INI and environment-variable paths are run through Windows environment-variable
expansion, so values such as `%SEGATOOLS_IO_ROOT%\mai2io.dll` are valid in the
INI directly.

Reviewed-on: https://gitea.tendokyu.moe/TeamTofuShop/segatools/pulls/119
Co-authored-by: グローランプ <130208311+Gl0w1amp@users.noreply.github.com>
Co-committed-by: グローランプ <130208311+Gl0w1amp@users.noreply.github.com>
2026-07-08 20:23:08 +00:00

173 lines
4.6 KiB
C

#include <assert.h>
#include <stddef.h>
#include <stdlib.h>
#include "board/config.h"
#include "hooklib/config.h"
#include "hooklib/dvd.h"
#include "gfxhook/config.h"
#include "platform/config.h"
#include "chusanhook/config.h"
#include "util/io-path.h"
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
// Check GCC
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
void chuni_dll_config_load(
struct chuni_dll_config *cfg,
const wchar_t *filename)
{
assert(cfg != NULL);
assert(filename != NULL);
// Workaround for x64/x86 external IO dlls
// path32 for 32bit, path64 for 64bit
// path for 32bit only dlls (internal chu2to3 engine)
if (io_path_config_load(
cfg->path,
_countof(cfg->path),
L"chuniio",
L"path",
L"SEGATOOLS_CHUNIIO_PATH",
NULL,
filename)) {
cfg->chu2to3 = 1;
} else {
cfg->chu2to3 = 0;
#if defined(ENV32BIT)
io_path_config_load(
cfg->path,
_countof(cfg->path),
L"chuniio",
L"path32",
L"SEGATOOLS_CHUNIIO_PATH32",
L"chuniio_x86.dll",
filename);
#elif defined(ENV64BIT)
io_path_config_load(
cfg->path,
_countof(cfg->path),
L"chuniio",
L"path64",
L"SEGATOOLS_CHUNIIO_PATH64",
L"chuniio_x64.dll",
filename);
#else
#error "Unknown environment"
#endif
}
}
void slider_config_load(struct slider_config *cfg, const wchar_t *filename)
{
assert(cfg != NULL);
assert(filename != NULL);
cfg->enable = GetPrivateProfileIntW(L"slider", L"enable", 1, filename);
}
void led15093_config_load(struct led15093_config *cfg, const wchar_t *filename)
{
assert(cfg != NULL);
assert(filename != NULL);
wchar_t tmpstr[16];
bool cvt_port;
memset(cfg->board_number, ' ', sizeof(cfg->board_number));
memset(cfg->chip_number, ' ', sizeof(cfg->chip_number));
memset(cfg->boot_chip_number, ' ', sizeof(cfg->boot_chip_number));
cfg->enable = GetPrivateProfileIntW(L"led15093", L"enable", 1, filename);
cfg->port_no[0] = GetPrivateProfileIntW(L"led15093", L"portNo1", 0, filename);
cfg->port_no[1] = GetPrivateProfileIntW(L"led15093", L"portNo2", 0, filename);
cfg->high_baudrate = GetPrivateProfileIntW(L"led15093", L"highBaud", 0, filename);
cfg->fw_ver = GetPrivateProfileIntW(L"led15093", L"fwVer", 0x90, filename);
cfg->fw_sum = GetPrivateProfileIntW(L"led15093", L"fwSum", 0xadf7, filename);
GetPrivateProfileStringW(
L"led15093",
L"boardNumber",
L"15093-06",
tmpstr,
_countof(tmpstr),
filename);
size_t n = wcstombs(cfg->board_number, tmpstr, sizeof(cfg->board_number));
for (int i = n; i < sizeof(cfg->board_number); i++)
{
cfg->board_number[i] = ' ';
}
GetPrivateProfileStringW(
L"led15093",
L"chipNumber",
L"6710 ",
tmpstr,
_countof(tmpstr),
filename);
n = wcstombs(cfg->chip_number, tmpstr, sizeof(cfg->chip_number));
for (int i = n; i < sizeof(cfg->chip_number); i++)
{
cfg->chip_number[i] = ' ';
}
GetPrivateProfileStringW(
L"led15093",
L"bootChipNumber",
L"6709 ",
tmpstr,
_countof(tmpstr),
filename);
n = wcstombs(cfg->boot_chip_number, tmpstr, sizeof(cfg->boot_chip_number));
for (int i = n; i < sizeof(cfg->boot_chip_number); i++)
{
cfg->boot_chip_number[i] = ' ';
}
}
void chusan_hook_config_load(
struct chusan_hook_config *cfg,
const wchar_t *filename)
{
assert(cfg != NULL);
assert(filename != NULL);
memset(cfg, 0, sizeof(*cfg));
// Force load the 64bit Aime DLL instead of the 32bit one
cfg->aime.dll.path64 = true;
platform_config_load(&cfg->platform, filename);
aime_config_load(&cfg->aime, filename);
dvd_config_load(&cfg->dvd, filename);
io4_config_load(&cfg->io4, filename);
gfx_config_load(&cfg->gfx, filename);
vfd_config_load(&cfg->vfd, filename);
chuni_dll_config_load(&cfg->dll, filename);
slider_config_load(&cfg->slider, filename);
led15093_config_load(&cfg->led15093, filename);
}