+ bool success =
+ getCurrentExecPath(buf, sizeof(buf)) ||
+ getExecPathFromProcfs(buf, sizeof(buf));
+
+ if (success) {
+ pathRemoveFile(buf, DIR_DELIM_CHAR);
+ std::string execpath(buf);
+
+ path_share = execpath + DIR_DELIM "..";
+ path_user = execpath + DIR_DELIM "..";
+
+ if (detectMSVCBuildDir(execpath)) {
+ path_share += DIR_DELIM "..";
+ path_user += DIR_DELIM "..";
+ }
+ } else {
+ errorstream << "Failed to get paths by executable location, "
+ "trying cwd" << std::endl;
+
+ if (!getCurrentWorkingDir(buf, sizeof(buf)))
+ FATAL_ERROR("Ran out of methods to get paths");
+
+ size_t cwdlen = strlen(buf);
+ if (cwdlen >= 1 && buf[cwdlen - 1] == DIR_DELIM_CHAR) {
+ cwdlen--;
+ buf[cwdlen] = '\0';
+ }
+
+ if (cwdlen >= 4 && !strcmp(buf + cwdlen - 4, DIR_DELIM "bin"))
+ pathRemoveFile(buf, DIR_DELIM_CHAR);
+
+ std::string execpath(buf);
+
+ path_share = execpath;
+ path_user = execpath;
+ }
+ path_cache = path_user + DIR_DELIM + "cache";
+#else
+ infostream << "Using system-wide paths (NOT RUN_IN_PLACE)" << std::endl;
+
+ if (!setSystemPaths())
+ errorstream << "Failed to get one or more system-wide path" << std::endl;
+
+ // Initialize path_cache
+ // First try $XDG_CACHE_HOME/PROJECT_NAME
+ const char *cache_dir = getenv("XDG_CACHE_HOME");
+ const char *home_dir = getenv("HOME");
+ if (cache_dir) {
+ path_cache = std::string(cache_dir) + DIR_DELIM + PROJECT_NAME;
+ } else if (home_dir) {
+ // Then try $HOME/.cache/PROJECT_NAME
+ path_cache = std::string(home_dir) + DIR_DELIM + ".cache"
+ + DIR_DELIM + PROJECT_NAME;
+ } else {
+ // If neither works, use $PATH_USER/cache
+ path_cache = path_user + DIR_DELIM + "cache";
+ }
+ // Migrate cache folder to new location if possible
+ migrateCachePath();
+#endif
+
+ infostream << "Detected share path: " << path_share << std::endl;
+ infostream << "Detected user path: " << path_user << std::endl;
+ infostream << "Detected cache path: " << path_cache << std::endl;
+
+#ifdef USE_GETTEXT
+ bool found_localedir = false;
+# ifdef STATIC_LOCALEDIR
+ if (STATIC_LOCALEDIR[0] && fs::PathExists(STATIC_LOCALEDIR)) {
+ found_localedir = true;
+ path_locale = STATIC_LOCALEDIR;
+ infostream << "Using locale directory " << STATIC_LOCALEDIR << std::endl;
+ } else {
+ path_locale = getDataPath("locale");
+ if (fs::PathExists(path_locale)) {
+ found_localedir = true;
+ infostream << "Using in-place locale directory " << path_locale
+ << " even though a static one was provided "
+ << "(RUN_IN_PLACE or CUSTOM_LOCALEDIR)." << std::endl;
+ }
+ }
+# else
+ path_locale = getDataPath("locale");
+ if (fs::PathExists(path_locale)) {
+ found_localedir = true;
+ }
+# endif
+ if (!found_localedir) {
+ warningstream << "Couldn't find a locale directory!" << std::endl;
+ }
+#endif // USE_GETTEXT
+}
+
+
+
+void setXorgClassHint(const video::SExposedVideoData &video_data,
+ const std::string &name)
+{
+#ifdef XORG_USED
+ if (video_data.OpenGLLinux.X11Display == NULL)
+ return;
+
+ XClassHint *classhint = XAllocClassHint();
+ classhint->res_name = (char *)name.c_str();
+ classhint->res_class = (char *)name.c_str();
+
+ XSetClassHint((Display *)video_data.OpenGLLinux.X11Display,
+ video_data.OpenGLLinux.X11Window, classhint);
+ XFree(classhint);
+#endif
+}
+
+bool setXorgWindowIcon(IrrlichtDevice *device,
+ const std::string &icon_file)
+{
+#ifdef XORG_USED
+
+ video::IVideoDriver *v_driver = device->getVideoDriver();
+
+ video::IImageLoader *image_loader = NULL;
+ u32 cnt = v_driver->getImageLoaderCount();
+ for (u32 i = 0; i < cnt; i++) {
+ if (v_driver->getImageLoader(i)->isALoadableFileExtension(icon_file.c_str())) {
+ image_loader = v_driver->getImageLoader(i);
+ break;
+ }
+ }
+
+ if (!image_loader) {
+ warningstream << "Could not find image loader for file '"
+ << icon_file << "'" << std::endl;
+ return false;
+ }
+
+ io::IReadFile *icon_f = device->getFileSystem()->createAndOpenFile(icon_file.c_str());
+
+ if (!icon_f) {
+ warningstream << "Could not load icon file '"
+ << icon_file << "'" << std::endl;
+ return false;
+ }
+
+ video::IImage *img = image_loader->loadImage(icon_f);
+
+ if (!img) {
+ warningstream << "Could not load icon file '"
+ << icon_file << "'" << std::endl;
+ icon_f->drop();
+ return false;
+ }
+
+ u32 height = img->getDimension().Height;
+ u32 width = img->getDimension().Width;
+
+ size_t icon_buffer_len = 2 + height * width;
+ long *icon_buffer = new long[icon_buffer_len];
+
+ icon_buffer[0] = width;
+ icon_buffer[1] = height;
+
+ for (u32 x = 0; x < width; x++) {
+ for (u32 y = 0; y < height; y++) {
+ video::SColor col = img->getPixel(x, y);
+ long pixel_val = 0;
+ pixel_val |= (u8)col.getAlpha() << 24;
+ pixel_val |= (u8)col.getRed() << 16;
+ pixel_val |= (u8)col.getGreen() << 8;
+ pixel_val |= (u8)col.getBlue();
+ icon_buffer[2 + x + y * width] = pixel_val;
+ }
+ }
+
+ img->drop();
+ icon_f->drop();
+
+ const video::SExposedVideoData &video_data = v_driver->getExposedVideoData();
+
+ Display *x11_dpl = (Display *)video_data.OpenGLLinux.X11Display;
+
+ if (x11_dpl == NULL) {
+ warningstream << "Could not find x11 display for setting its icon."
+ << std::endl;
+ delete [] icon_buffer;
+ return false;
+ }
+
+ Window x11_win = (Window)video_data.OpenGLLinux.X11Window;
+
+ Atom net_wm_icon = XInternAtom(x11_dpl, "_NET_WM_ICON", False);
+ Atom cardinal = XInternAtom(x11_dpl, "CARDINAL", False);
+ XChangeProperty(x11_dpl, x11_win,
+ net_wm_icon, cardinal, 32,
+ PropModeReplace, (const unsigned char *)icon_buffer,
+ icon_buffer_len);
+
+ delete [] icon_buffer;
+
+#endif
+ return true;
+}
+
+////
+//// Video/Display Information (Client-only)
+////
+
+#ifndef SERVER
+
+static irr::IrrlichtDevice *device;
+
+void initIrrlicht(irr::IrrlichtDevice *device_)
+{
+ device = device_;
+}
+
+v2u32 getWindowSize()
+{
+ return device->getVideoDriver()->getScreenSize();
+}
+
+
+std::vector<core::vector3d<u32> > getSupportedVideoModes()
+{
+ IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
+ sanity_check(nulldevice != NULL);
+
+ std::vector<core::vector3d<u32> > mlist;
+ video::IVideoModeList *modelist = nulldevice->getVideoModeList();
+
+ u32 num_modes = modelist->getVideoModeCount();
+ for (u32 i = 0; i != num_modes; i++) {
+ core::dimension2d<u32> mode_res = modelist->getVideoModeResolution(i);
+ s32 mode_depth = modelist->getVideoModeDepth(i);
+ mlist.push_back(core::vector3d<u32>(mode_res.Width, mode_res.Height, mode_depth));
+ }
+
+ nulldevice->drop();
+
+ return mlist;
+}
+
+std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers()
+{
+ std::vector<irr::video::E_DRIVER_TYPE> drivers;
+
+ for (int i = 0; i != irr::video::EDT_COUNT; i++) {
+ if (irr::IrrlichtDevice::isDriverSupported((irr::video::E_DRIVER_TYPE)i))
+ drivers.push_back((irr::video::E_DRIVER_TYPE)i);
+ }
+
+ return drivers;
+}
+
+const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type)
+{
+ static const char *driver_ids[] = {
+ "null",
+ "software",
+ "burningsvideo",
+ "direct3d8",
+ "direct3d9",
+ "opengl",
+ "ogles1",
+ "ogles2",
+ };
+
+ return driver_ids[type];
+}
+
+
+const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type)
+{
+ static const char *driver_names[] = {
+ "NULL Driver",
+ "Software Renderer",
+ "Burning's Video",
+ "Direct3D 8",
+ "Direct3D 9",
+ "OpenGL",
+ "OpenGL ES1",
+ "OpenGL ES2",
+ };
+
+ return driver_names[type];
+}
+
+# ifndef __ANDROID__
+# ifdef XORG_USED
+
+static float calcDisplayDensity()
+{
+ const char *current_display = getenv("DISPLAY");
+
+ if (current_display != NULL) {
+ Display *x11display = XOpenDisplay(current_display);
+
+ if (x11display != NULL) {
+ /* try x direct */
+ float dpi_height = floor(DisplayHeight(x11display, 0) /
+ (DisplayHeightMM(x11display, 0) * 0.039370) + 0.5);
+ float dpi_width = floor(DisplayWidth(x11display, 0) /
+ (DisplayWidthMM(x11display, 0) * 0.039370) + 0.5);
+
+ XCloseDisplay(x11display);
+
+ return std::max(dpi_height,dpi_width) / 96.0;
+ }
+ }
+
+ /* return manually specified dpi */
+ return g_settings->getFloat("screen_dpi")/96.0;
+}
+
+
+float getDisplayDensity()
+{
+ static float cached_display_density = calcDisplayDensity();
+ return cached_display_density;
+}
+
+
+# else // XORG_USED
+float getDisplayDensity()
+{
+ return g_settings->getFloat("screen_dpi")/96.0;
+}
+# endif // XORG_USED
+
+v2u32 getDisplaySize()
+{
+ IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
+
+ core::dimension2d<u32> deskres = nulldevice->getVideoModeList()->getDesktopResolution();
+ nulldevice -> drop();
+
+ return deskres;
+}
+# endif // __ANDROID__
+#endif // SERVER
+
+
+////
+//// OS-specific Secure Random
+////
+
+#ifdef WIN32
+
+bool secure_rand_fill_buf(void *buf, size_t len)
+{
+ HCRYPTPROV wctx;
+
+ if (!CryptAcquireContext(&wctx, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
+ return false;
+
+ CryptGenRandom(wctx, len, (BYTE *)buf);
+ CryptReleaseContext(wctx, 0);
+ return true;
+}
+
+#else
+
+bool secure_rand_fill_buf(void *buf, size_t len)
+{
+ // N.B. This function checks *only* for /dev/urandom, because on most
+ // common OSes it is non-blocking, whereas /dev/random is blocking, and it
+ // is exceptionally uncommon for there to be a situation where /dev/random
+ // exists but /dev/urandom does not. This guesswork is necessary since
+ // random devices are not covered by any POSIX standard...
+ FILE *fp = fopen("/dev/urandom", "rb");
+ if (!fp)
+ return false;
+
+ bool success = fread(buf, len, 1, fp) == 1;
+
+ fclose(fp);
+ return success;
+}
+
+#endif
+
+} //namespace porting