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jbhook1: If gfx.vertical is set, rotate error messages too

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By hooking CreateProcessA, we can adjust the commandline to
disable any rotation, which displays the error box at the correct
place on screen (no additional x/y adjustment is needed)
This commit is contained in:
Will Toohey 2023-06-20 12:35:28 +10:00 committed by icex2
parent 9ce47e7050
commit 3bff7f8a5e
1 changed files with 79 additions and 0 deletions
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79
src/main/jbhook1/dllmain.c
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@ -47,6 +47,29 @@ my_mwindow_create(HINSTANCE, void *, const char *, DWORD, DWORD, BOOL);
static HWND(CDECL *real_mwindow_create)(
HINSTANCE, void *, const char *, DWORD, DWORD, BOOL);
static BOOL STDCALL my_CreateProcessA(
LPCSTR lpApplicationName,
LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPCSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation);
static BOOL(STDCALL *real_CreateProcessA)(
LPCSTR lpApplicationName,
LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPCSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation);
static const struct hook_symbol init_hook_syms[] = {
{
.name = "mwindow_create",
@ -55,6 +78,17 @@ static const struct hook_symbol init_hook_syms[] = {
},
};
static const struct hook_symbol kernel32_hook_syms[] = {
{
.name = "CreateProcessA",
.patch = my_CreateProcessA,
.link = (void **) &real_CreateProcessA,
},
};
// so our CreateProcessA hook can check
static bool vertical;
/**
* This seems to be a good entry point to intercept before the game calls
* anything important (very close to the start of WinMain).
@ -107,6 +141,7 @@ static HWND CDECL my_mwindow_create(
jbhook1_log_gftools_init();
fullscreen = !config_gfx.windowed;
vertical = config_gfx.vertical;
if (config_gfx.vertical) {
DWORD tmp = window_width;
@ -175,9 +210,53 @@ BOOL WINAPI DllMain(HMODULE mod, DWORD reason, void *ctx)
/* Actual hooks for game specific stuff */
hook_table_apply(
NULL,
"kernel32.dll",
kernel32_hook_syms,
lengthof(kernel32_hook_syms));
acp_hook_init();
adapter_hook_init();
}
return TRUE;
}
static BOOL STDCALL my_CreateProcessA(
LPCSTR lpApplicationName,
LPSTR lpCommandLine,
LPSECURITY_ATTRIBUTES lpProcessAttributes,
LPSECURITY_ATTRIBUTES lpThreadAttributes,
BOOL bInheritHandles,
DWORD dwCreationFlags,
LPVOID lpEnvironment,
LPCSTR lpCurrentDirectory,
LPSTARTUPINFOA lpStartupInfo,
LPPROCESS_INFORMATION lpProcessInformation)
{
LPSTR rot_arg;
// de-rotate the error window if needed. In theory this should parse the
// commandline properly, in practice this works on all the .exe jubeats.
if (vertical && lpCommandLine) {
if ((rot_arg = strstr(lpCommandLine, " -R90 "))) { // jubeat 01
memcpy(rot_arg, " -R0 ", strlen(" -R0 "));
} else if ((rot_arg =
strstr(lpCommandLine, " -rot:90 "))) { // jubeat 02
memcpy(rot_arg, " -rot:0 ", strlen(" -rot:0 "));
}
}
return real_CreateProcessA(
lpApplicationName,
lpCommandLine,
lpProcessAttributes,
lpThreadAttributes,
bInheritHandles,
dwCreationFlags,
lpEnvironment,
lpCurrentDirectory,
lpStartupInfo,
lpProcessInformation);
}