int
ga_crop_window(struct gaRect *rect, struct gaRect **prect) {
char display[16], wndname[1024];
char *pdisplay, *pname;
Display *d = NULL;
int dw, dh, screen = 0;
Window w = 0;
//
if(rect == NULL || prect == NULL)
return -1;
//
if((pdisplay = ga_conf_readv("display", display, sizeof(display))) == NULL) {
*prect = NULL;
return 0;
}
if((pname = ga_conf_readv("find-window-name", wndname, sizeof(wndname))) == NULL) {
*prect = NULL;
return 0;
}
//
if((d = XOpenDisplay(pdisplay)) == NULL) {
ga_error("ga_crop_window: cannot open display %s\n", display);
return -1;
}
screen = XDefaultScreen(d);
dw = DisplayWidth(d, screen);
dh = DisplayHeight(d, screen);
if((w = FindWindowX(d, RootWindow(d, screen), pname)) == 0) {
ga_error("FindWindowX failed for %s/%s\n", pdisplay, pname);
XCloseDisplay(d);
return -1;
}
if(GetClientRectX(d, screen, w, rect) < 0) {
ga_error("GetClientRectX failed for %s/%s\n", pdisplay, pname);
XCloseDisplay(d);
return -1;
}
XRaiseWindow(d, w);
XSetInputFocus(d, w, RevertToNone, CurrentTime);
XCloseDisplay(d);
// size check: multiples of 2?
if((rect->right - rect->left + 1) % 2 != 0)
rect->left--;
if((rect->bottom - rect->top + 1) % 2 != 0)
rect->top--;
// window is all visible?
if(rect->left < 0 || rect->top < 0 || rect->right >= dw || rect->bottom >= dh) {
ga_error("Invalid window: (%d,%d)-(%d,%d) w=%d h=%d (screen dimension = %dx%d).\n",
rect->left, rect->top, rect->right, rect->bottom,
rect->right - rect->left + 1,
rect->bottom - rect->top + 1,
dw, dh);
return -1;
}
//
*prect = rect;
return 1;
}
int
do_hook(char *hook_type, int hook_type_sz) {
char *ptr, app_exe[1024], hook_method[1024];
int resolution[2];
//
if(CoInitializeEx(NULL, COINIT_MULTITHREADED) != S_OK) {
ga_error("*** CoInitializeEx failed.\n");
}
//
if(ga_hook_init() < 0)
return -1;
// handle ga-hook specific configurations
if((ptr = ga_conf_readv("game-exe", app_exe, sizeof(app_exe))) == NULL) {
ga_error("*** no game executable specified.\n");
return -1;
}
if((ptr = ga_conf_readv("hook-type", hook_type, hook_type_sz)) == NULL) {
ga_error("*** no hook type specified.\n");
return -1;
}
if((ptr = ga_conf_readv("hook-method", hook_method, sizeof(hook_method))) != NULL) {
ga_error("*** hook method specified: %s\n", hook_method);
}
//
ga_error("[start-hook] exe=%s; type=%s\n", app_exe, hook_type);
//
if(hook_input() < 0)
return -1;
// ---
if(strcasecmp(hook_type, "sdl") == 0) {
return hook_sdl12(hook_type, hook_method);
}
// d9?
if(strcasecmp(hook_type, "d9") == 0) {
return hook_d9(hook_type, hook_method);
}
// dxgi?
if(strcasecmp(hook_type, "dxgi") == 0) {
//if(strstr(hook_method, "GetDXGIFactoryAddress") != NULL)
return hook_dxgi(hook_type, hook_method);
}
// d10?
if(strcasecmp(hook_type, "d10") == 0) {
return hook_d10(hook_type, hook_method);
}
// d10.1?
if(strcasecmp(hook_type, "d10.1") == 0) {
return hook_d10_1(hook_type, hook_method);
}
// d11?
if(strcasecmp(hook_type, "d11") == 0) {
return hook_d11(hook_type, hook_method);
}
//
ga_error("Unsupported hook type (%s)\n", hook_type);
return -1;
}
//从config结构里找出key="logfile"对应的value，并打开
void
ga_openlog() {
char fn[1024];
FILE *fp;
//
if(ga_conf_readv("logfile", fn, sizeof(fn)) == NULL)
return;
if((fp = fopen(fn, "at")) != NULL) {
fclose(fp);
ga_logfile = strdup(fn);
}
//
return;
}
static int
hook_sdl12(const char *hook_type, const char *hook_method) {
HMODULE hMod;
char audio_type[64] = "";
const char *sdlpath = getenv("LIBSDL_SO");
const char *def_sdlpath = "SDL.dll";
if(sdlpath == NULL)
sdlpath = def_sdlpath;
//
if((hMod = GetModuleHandle(sdlpath)) == NULL) {
if((hMod = LoadLibrary(sdlpath)) == NULL) {
ga_error("Load %s failed.\n", sdlpath);
return -1;
}
}
if(ga_conf_readv("hook-audio", audio_type, sizeof(audio_type)) == NULL)
audio_type[0] = '\0';
//
//load_hook_function(hMod, t_SDL_Init, old_SDL_Init, "SDL_Init");
load_hook_function(hMod, t_SDL_Init, old_SDL_Init, "SDL_Init");
load_hook_function(hMod, t_SDL_SetVideoMode, old_SDL_SetVideoMode, "SDL_SetVideoMode");
load_hook_function(hMod, t_SDL_UpperBlit, old_SDL_UpperBlit, "SDL_UpperBlit");
// XXX: BlitSurface == UpperBlit
load_hook_function(hMod, t_SDL_BlitSurface, old_SDL_BlitSurface, "SDL_UpperBlit");
load_hook_function(hMod, t_SDL_Flip, old_SDL_Flip, "SDL_Flip");
load_hook_function(hMod, t_SDL_UpdateRect, old_SDL_UpdateRect, "SDL_UpdateRect");
load_hook_function(hMod, t_SDL_UpdateRects, old_SDL_UpdateRects, "SDL_UpdateRects");
load_hook_function(hMod, t_SDL_GL_SwapBuffers, old_SDL_GL_SwapBuffers, "SDL_GL_SwapBuffers");
load_hook_function(hMod, t_SDL_PollEvent, old_SDL_PollEvent, "SDL_PollEvent");
load_hook_function(hMod, t_SDL_WaitEvent, old_SDL_WaitEvent, "SDL_WaitEvent");
load_hook_function(hMod, t_SDL_PeepEvents, old_SDL_PeepEvents, "SDL_PeepEvents");
load_hook_function(hMod, t_SDL_SetEventFilter, old_SDL_SetEventFilter, "SDL_SetEventFilter");
if(strcmp("sdlaudio", audio_type) == 0) {
/////////////////////////////////////////
load_hook_function(hMod, t_SDL_OpenAudio, old_SDL_OpenAudio, "SDL_OpenAudio");
load_hook_function(hMod, t_SDL_PauseAudio, old_SDL_PauseAudio, "SDL_PauseAudio");
load_hook_function(hMod, t_SDL_CloseAudio, old_SDL_CloseAudio, "SDL_CloseAudio");
ga_error("hook: sdlaudio enabled.\n");
/////////////////////////////////////////
}
// for internal use
load_hook_function(hMod, t_SDL_CreateRGBSurface, old_SDL_CreateRGBSurface, "SDL_CreateRGBSurface");
load_hook_function(hMod, t_SDL_FreeSurface, old_SDL_FreeSurface, "SDL_FreeSurface");
load_hook_function(hMod, t_SDL_PushEvent, old_SDL_PushEvent, "SDL_PushEvent");
//
#define SDL_DO_HOOK(name) \
DetourTransactionBegin(); \
DetourUpdateThread(GetCurrentThread()); \
DetourAttach(&(PVOID&)old_##name, hook_##name); \
DetourTransactionCommit();
//SDL_DO_HOOK(SDL_Init);
SDL_DO_HOOK(SDL_SetVideoMode);
SDL_DO_HOOK(SDL_UpperBlit);
SDL_DO_HOOK(SDL_Flip);
SDL_DO_HOOK(SDL_UpdateRect);
SDL_DO_HOOK(SDL_UpdateRects);
SDL_DO_HOOK(SDL_WaitEvent);
SDL_DO_HOOK(SDL_PeepEvents);
SDL_DO_HOOK(SDL_SetEventFilter);
if(strcmp("sdlaudio", audio_type) == 0) {
/////////////////////////////////////////
SDL_DO_HOOK(SDL_OpenAudio);
SDL_DO_HOOK(SDL_PauseAudio);
SDL_DO_HOOK(SDL_CloseAudio);
/////////////////////////////////////////
}
#if 1
SDL_DO_HOOK(SDL_GL_SwapBuffers);
SDL_DO_HOOK(SDL_PollEvent);
#else
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)old_SDL_GL_SwapBuffers, hook_SDL_GL_SwapBuffers);
DetourTransactionCommit();
//
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)old_SDL_PollEvent, hook_SDL_PollEvent);
DetourTransactionCommit();
#endif
#undef SDL_DO_HOOK
ga_error("hook_sdl12: done\n");
//
return 0;
}
int
ga_crop_window(struct gaRect *rect, struct gaRect **prect) {
char wndname[1024], wndclass[1024];
char *pname;
char *pclass;
int dw, dh, find_wnd_arg = 0;
HWND hWnd;
RECT client;
POINT lt, rb;
//
if(rect == NULL || prect == NULL)
return -1;
//
pname = ga_conf_readv("find-window-name", wndname, sizeof(wndname));
pclass = ga_conf_readv("find-window-class", wndclass, sizeof(wndclass));
//
if(pname != NULL && *pname != '\0')
find_wnd_arg++;
if(pclass != NULL && *pclass != '\0')
find_wnd_arg++;
if(find_wnd_arg <= 0) {
*prect = NULL;
return 0;
}
//
if((hWnd = FindWindow(pclass, pname)) == NULL) {
ga_error("FindWindow failed for '%s/%s'\n",
pclass ? pclass : "",
pname ? pname : "");
return -1;
}
//
GetWindowText(hWnd, wndname, sizeof(wndname));
dw = GetSystemMetrics(SM_CXSCREEN);
dh = GetSystemMetrics(SM_CYSCREEN);
//
ga_error("Found window (0x%08x) :%s%s%s%s\n", hWnd,
pclass ? " class=" : "",
pclass ? pclass : "",
pname ? " name=" : "",
pname ? pname : "");
//设置子窗口置顶
if(SetWindowPos(hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE|SWP_SHOWWINDOW) == 0) {
ga_error("SetWindowPos failed.\n");
return -1;
}
if(GetClientRect(hWnd, &client) == 0) {
ga_error("GetClientRect failed.\n");
return -1;
}
if(SetForegroundWindow(hWnd) == 0) {
ga_error("SetForegroundWindow failed.\n");
}
//
lt.x = client.left;
lt.y = client.top;
rb.x = client.right-1;
rb.y = client.bottom-1;
//
if(ClientToScreen(hWnd, <) == 0
|| ClientToScreen(hWnd, &rb) == 0) {
ga_error("Map from client coordinate to screen coordinate failed.\n");
return -1;
}
//
rect->left = lt.x;
rect->top = lt.y;
rect->right = rb.x;
rect->bottom = rb.y;
// size check: multiples of 2?
if((rect->right - rect->left + 1) % 2 != 0)
rect->left--;
if((rect->bottom - rect->top + 1) % 2 != 0)
rect->top--;
//
if(rect->left < 0 || rect->top < 0 || rect->right >= dw || rect->bottom >= dh) {
ga_error("Invalid window: (%d,%d)-(%d,%d) w=%d h=%d (screen dimension = %dx%d).\n",
rect->left, rect->top, rect->right, rect->bottom,
rect->right - rect->left + 1,
rect->bottom - rect->top + 1);
return -1;
}
//
*prect = rect;
return 1;
}
