vulkaninfo: On X11 use default visual

If the visual passed to XCreateWindow is not the default one, it can
cause a BadMatch error. Usually the first one returned does work, but in
certain cases we need to search through all the visuals to find one that
matches the default visual. This was seen on an xrdp session on Rocky 9.

Author: rp42

vulkaninfo/vulkaninfo.h

@@ -71,6 +71,7 @@
 #endif  // _WIN32
 
 #if defined(VK_USE_PLATFORM_XLIB_KHR) || defined(VK_USE_PLATFORM_XCB_KHR)
+#include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #endif
 
@@ -772,7 +773,7 @@ static void AppDestroyXcbWindow(AppInstance &inst) {
 #ifdef VK_USE_PLATFORM_XLIB_KHR
 static void AppCreateXlibWindow(AppInstance &inst) {
     long visualMask = VisualScreenMask;
-    int numberOfVisuals;
+    int numberOfVisuals{};
 
     inst.xlib_display = XOpenDisplay(nullptr);
     if (inst.xlib_display == nullptr) {
@@ -781,12 +782,17 @@ static void AppCreateXlibWindow(AppInstance &inst) {
 
     XVisualInfo vInfoTemplate = {};
     vInfoTemplate.screen = DefaultScreen(inst.xlib_display);
-    XVisualInfo *visualInfo = XGetVisualInfo(inst.xlib_display, visualMask, &vInfoTemplate, &numberOfVisuals);
+    XVisualInfo *visualInfoBegin = XGetVisualInfo(inst.xlib_display, visualMask, &vInfoTemplate, &numberOfVisuals);
+    XVisualInfo *visualInfoEnd = visualInfoBegin + numberOfVisuals;
+    const Visual *rootVisual = DefaultVisual(inst.xlib_display, vInfoTemplate.screen);
+    const XVisualInfo *foundVisualInfo =
+        std::find_if(visualInfoBegin, visualInfoEnd, [rootVisual](const XVisualInfo &vi) { return vi.visual == rootVisual; });
+    const XVisualInfo *visualInfo = foundVisualInfo == visualInfoEnd ? visualInfoBegin : foundVisualInfo;
     inst.xlib_window = XCreateWindow(inst.xlib_display, RootWindow(inst.xlib_display, vInfoTemplate.screen), 0, 0, inst.width,
                                      inst.height, 0, visualInfo->depth, InputOutput, visualInfo->visual, 0, nullptr);
 
     XSync(inst.xlib_display, false);
-    XFree(visualInfo);
+    XFree(visualInfoBegin);
 }
 
 static VkSurfaceKHR AppCreateXlibSurface(AppInstance &inst) {