Use X11 loader functions instead of linking to X11 libs

meson.build

@@ -98,7 +98,7 @@ dep_wayland_client = dependency('wayland-client',
 
 if dep_x11.found()
   vulkan_wsi_args += ['-DVK_USE_PLATFORM_XLIB_KHR']
-  vulkan_wsi_deps += dep_x11
+  vulkan_wsi_deps += dep_x11.partial_dependency(compile_args : true, includes : true)
 endif
 if dep_wayland_client.found()
   vulkan_wsi_args += ['-DVK_USE_PLATFORM_WAYLAND_KHR']

src/keybinds.h

@@ -1,18 +1,23 @@
-#include <X11/Xlib.h>
+#pragma once
-#include <iostream>
+#include "shared_x11.h"
-#include "X11/keysym.h"
+#include "loaders/loader_x11.h"
-#include <functional>
+
+#ifndef KeySym
+typedef unsigned long KeySym;
+#endif
 
 double elapsedF2, elapsedF12, elapsedReloadCfg;
 uint64_t last_f2_press, last_f12_press, reload_cfg_press;
 pthread_t f2;
-char *displayid = getenv("DISPLAY");
-std::unique_ptr<Display, std::function<void(Display*)>> dpy(XOpenDisplay(displayid), [](Display* d) { XCloseDisplay(d); });
 
 bool key_is_pressed(KeySym ks) {
+
+    if (!init_x11())
+        return false;
+
     char keys_return[32];
-    XQueryKeymap(dpy.get(), keys_return);
+    g_x11->XQueryKeymap(get_xdisplay(), keys_return);
-    KeyCode kc2 = XKeysymToKeycode(dpy.get(), ks);
+    KeyCode kc2 = g_x11->XKeysymToKeycode(get_xdisplay(), ks);
     bool isPressed = !!(keys_return[kc2 >> 3] & (1 << (kc2 & 7)));
     return isPressed;
 }

src/meson.build

@@ -61,7 +61,8 @@ opengl_files = files(
   'gl/gl3w/GL/gl3w.c',
 )
 
-if get_option('with_xnvctrl').enabled()
+if get_option('with_x11').enabled() and \
+    get_option('with_xnvctrl').enabled()
   pre_args += '-DHAVE_XNVCTRL'
   vklayer_files += files(
     'loaders/loader_nvctrl.cpp',
@@ -74,6 +75,8 @@ if get_option('with_x11').enabled()
   opengl_files += files(
     'gl/inject_glx.cpp',
     'loaders/loader_glx.cpp',
+    'loaders/loader_x11.cpp',
+    'shared_x11.cpp',
   )
 endif
 

src/nvctrl.cpp

@@ -5,10 +5,10 @@
 #include "nvctrl.h"
 #include "loaders/loader_nvctrl.h"
 #include "string_utils.h"
+#include "shared_x11.h"
 
 typedef std::unordered_map<std::string, std::string> string_map;
 
-Display *display = XOpenDisplay(NULL);
 libnvctrl_loader nvctrl("libXNVCtrl.so");
 
 struct nvctrlInfo nvctrl_info;
@@ -16,8 +16,8 @@ bool nvctrlSuccess = false;
 
 bool checkXNVCtrl()
 {
-    if (nvctrl.IsLoaded()) {
+    if (init_x11() && nvctrl.IsLoaded()) {
-        nvctrlSuccess = nvctrl.XNVCTRLIsNvScreen(display, 0);
+        nvctrlSuccess = nvctrl.XNVCTRLIsNvScreen(get_xdisplay(), 0);
         if (!nvctrlSuccess)
             std::cerr << "MANGOHUD: XNVCtrl didn't find the correct display" << std::endl;
         return nvctrlSuccess;
@@ -47,7 +47,7 @@ void parse_token(std::string token, string_map& options) {
 
 char* get_attr_target_string(int attr, int target_type, int target_id) {
     char* c = nullptr;
-    if (!nvctrl.XNVCTRLQueryTargetStringAttribute(display, target_type, target_id, 0, attr, &c)) {
+    if (!nvctrl.XNVCTRLQueryTargetStringAttribute(get_xdisplay(), target_type, target_id, 0, attr, &c)) {
         std::cerr << "Failed to query attribute '" << attr << "'.\n";
     }
     return c;
@@ -57,6 +57,9 @@ void getNvctrlInfo(){
     string_map params;
     std::string token;
 
+    if (!init_x11())
+        return;
+
     int enums[] = {
         NV_CTRL_STRING_GPU_UTILIZATION,
         NV_CTRL_STRING_GPU_CURRENT_CLOCK_FREQS,
@@ -83,7 +86,7 @@ void getNvctrlInfo(){
         nvctrl_info.MemClock = 0;
 
     int64_t temp = 0;
-    nvctrl.XNVCTRLQueryTargetAttribute64(display,
+    nvctrl.XNVCTRLQueryTargetAttribute64(get_xdisplay(),
                         NV_CTRL_TARGET_TYPE_GPU,
                         0,
                         0,
@@ -92,7 +95,7 @@ void getNvctrlInfo(){
     nvctrl_info.temp = temp;
 
     int64_t memtotal = 0;
-    nvctrl.XNVCTRLQueryTargetAttribute64(display,
+    nvctrl.XNVCTRLQueryTargetAttribute64(get_xdisplay(),
                         NV_CTRL_TARGET_TYPE_GPU,
                         0,
                         0,
@@ -101,11 +104,11 @@ void getNvctrlInfo(){
     nvctrl_info.memoryTotal = memtotal;
 
     int64_t memused = 0;
-    nvctrl.XNVCTRLQueryTargetAttribute64(display,
+    nvctrl.XNVCTRLQueryTargetAttribute64(get_xdisplay(),
                         NV_CTRL_TARGET_TYPE_GPU,
                         0,
                         0,
                         NV_CTRL_USED_DEDICATED_GPU_MEMORY,
                         &memused);
     nvctrl_info.memoryUsed = memused;
-}
+}

src/overlay.cpp

@@ -810,13 +810,19 @@ void init_system_info(){
 }
 
 void check_keybinds(struct overlay_params& params){
+   bool pressed = false; // FIXME just a placeholder until wayland support
    uint64_t now = os_time_get(); /* us */
    elapsedF2 = (double)(now - last_f2_press);
    elapsedF12 = (double)(now - last_f12_press);
    elapsedReloadCfg = (double)(now - reload_cfg_press);
   
   if (elapsedF2 >= 500000 && !params.output_file.empty()){
-     if (key_is_pressed(params.toggle_logging)){
+#ifdef HAVE_X11
+     pressed = key_is_pressed(params.toggle_logging);
+#else
+     pressed = false;
+#endif
+     if (pressed){
        last_f2_press = now;
        log_start = now;
        loggingOn = !loggingOn;
@@ -828,14 +834,24 @@ void check_keybinds(struct overlay_params& params){
    }
 
    if (elapsedF12 >= 500000){
-      if (key_is_pressed(params.toggle_hud)){
+#ifdef HAVE_X11
+      pressed = key_is_pressed(params.toggle_hud);
+#else
+      pressed = false;
+#endif
+      if (pressed){
          last_f12_press = now;
          params.no_display = !params.no_display;
       }
    }
 
    if (elapsedReloadCfg >= 500000){
-      if (key_is_pressed(params.reload_cfg)){
+#ifdef HAVE_X11
+      pressed = key_is_pressed(params.reload_cfg);
+#else
+      pressed = false;
+#endif
+      if (pressed){
          parse_overlay_config(&params, getenv("MANGOHUD_CONFIG"));
          reload_cfg_press = now;
       }

src/overlay_params.cpp

@@ -26,8 +26,6 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <sys/sysinfo.h>
-#include <X11/Xlib.h>
-#include <X11/keysym.h>
 #include <wordexp.h>
 #include "imgui.h"
 #include <iostream>
@@ -38,6 +36,11 @@
 
 #include "mesa/util/os_socket.h"
 
+#ifdef HAVE_X11
+#include <X11/keysym.h>
+#include "loaders/loader_x11.h"
+#endif
+
 static enum overlay_param_position
 
 parse_position(const char *str)
@@ -86,23 +89,31 @@ parse_alpha(const char *str)
    return strtof(str, NULL);
 }
 
+#ifdef HAVE_X11
 static KeySym
 parse_toggle_hud(const char *str)
 {
-   return XStringToKeysym(str);
+   if (g_x11->IsLoaded())
+      return g_x11->XStringToKeysym(str);
+   return 0;
 }
 
 static KeySym
 parse_toggle_logging(const char *str)
 {
-   return XStringToKeysym(str);
+   if (g_x11->IsLoaded())
+      return g_x11->XStringToKeysym(str);
+   return 0;
 }
 
 static KeySym
 parse_reload_cfg(const char *str)
 {
-   return XStringToKeysym(str);
+   if (g_x11->IsLoaded())
+      return g_x11->XStringToKeysym(str);
+   return 0;
 }
+#endif
 
 static uint32_t
 parse_fps_sampling_period(const char *str)