}
-/**
- * If the first character is '!' we interpret it as specific driver name
- * (i.e. "!r200" or "!i830"). Whatever follows ':' is interpreted as
- * arguments.
- *
- * The caller may free() the returned driver name.
- */
-char *
-_eglSplitDisplayString(const char *dpyString, const char **args)
-{
- char *drv, *p;
-
- if (!dpyString || dpyString[0] != '!')
- return NULL;
- drv = _eglstrdup(dpyString + 1);
- if (!drv)
- return NULL;
-
- p = strchr(dpyString, ':');
- if (p) {
- drv[p - dpyString] = '\0';
- p++;
- }
- if (args)
- *args = p;
-
- return drv;
-}
-
-
/**
* Allocate a new _EGLDisplay object for the given nativeDisplay handle.
* We'll also try to determine the device driver name at this time.
#endif
-/**
- * Choose a driver for a given display.
- * The caller may free() the returned strings.
- */
-static char *
-_eglChooseDriver(_EGLDisplay *dpy, char **argsRet)
-{
- char *path = NULL;
- const char *args = NULL;
- const char *suffix = NULL;
- const char *p;
-
- path = getenv("EGL_DRIVER");
- if (path)
- path = _eglstrdup(path);
-
-#if defined(_EGL_PLATFORM_X)
- if (!path && dpy && dpy->NativeDisplay) {
- /* assume (wrongly!) that the native display is a display string */
- path = _eglSplitDisplayString((const char *) dpy->NativeDisplay, &args);
- }
- suffix = "so";
-#elif defined(_EGL_PLATFORM_WINDOWS)
- suffix = "dll";
-#else /* _EGL_PLATFORM_NO_OS */
- if (path) {
- /* force the use of the default driver */
- _eglLog(_EGL_DEBUG, "ignore EGL_DRIVER");
- free(path);
- path = NULL;
- }
- suffix = NULL;
-#endif
-
- if (!path)
- path = _eglstrdup(DefaultDriverName);
-
- /* append suffix if there isn't */
- p = strrchr(path, '.');
- if (!p && suffix) {
- size_t len = strlen(path);
- char *tmp = malloc(len + strlen(suffix) + 2);
- if (tmp) {
- memcpy(tmp, path, len);
- tmp[len++] = '.';
- tmp[len] = '\0';
- strcat(tmp + len, suffix);
-
- free(path);
- path = tmp;
- }
- }
-
- if (argsRet)
- *argsRet = (args) ? _eglstrdup(args) : NULL;
-
- return path;
-}
-
-
/**
* Open the named driver and find its bootstrap function: _eglMain().
*/
}
-/**
- * Load a driver and save it.
- */
-const char *
-_eglPreloadDriver(_EGLDisplay *dpy)
-{
- char *path, *args;
- _EGLDriver *drv;
- EGLint i;
-
- path = _eglChooseDriver(dpy, &args);
- if (!path)
- return NULL;
-
- for (i = 0; i < _eglGlobal.NumDrivers; i++) {
- drv = _eglGlobal.Drivers[i];
- if (strcmp(drv->Path, path) == 0) {
- _eglLog(_EGL_DEBUG, "Driver %s is already preloaded",
- drv->Name);
- free(path);
- if (args)
- free(args);
- return drv->Name;
- }
- }
-
- drv = _eglLoadDriver(path, args);
- if (!drv) {
- free(path);
- if (args)
- free(args);
- return NULL;
- }
-
- _eglGlobal.Drivers[_eglGlobal.NumDrivers++] = drv;
-
- return drv->Name;
-}
-
-
/**
* Open a preloaded driver.
*/
}
-/**
- * Given a display handle, return the _EGLDriver for that display.
- */
-_EGLDriver *
-_eglLookupDriver(EGLDisplay dpy)
-{
- _EGLDisplay *d = _eglLookupDisplay(dpy);
- if (d)
- return d->Driver;
- else
- return NULL;
-}
-
-
/**
* Plug all the available fallback routines into the given driver's
* dispatch table.