Revert "vdisp/gl,sdl3: disable libdecor for Wayland"

This reverts commit c338e7b.

Author: MartinPulec

src/video_display/gl.cpp

@@ -57,7 +57,6 @@
 #include <cmath>
 #include <condition_variable>
 #include <cstdint>
-#include <cstdlib>             // for getenv
 #include <fstream>
 #include <iostream>
 #include <mutex>
@@ -947,16 +946,6 @@ static void * display_gl_init(struct module *parent, const char *fmt, unsigned i
                 keycontrol_register_key(&s->mod, i.first, msg, i.second.data());
         }
 
-#ifdef GLFW_WAYLAND_DISABLE_LIBDECOR
-        if (getenv("WAYLAND_DISPLAY") &&
-            s->init_hints.find(GLFW_WAYLAND_LIBDECOR) ==
-                s->init_hints.end()) {
-                s->init_hints[GLFW_WAYLAND_LIBDECOR] =
-                    GLFW_WAYLAND_DISABLE_LIBDECOR;
-                MSG(INFO, "Disabling libdecor.\n");
-        }
-#endif
-
 #if GLFW_VERSION_MAJOR < 3 || (GLFW_VERSION_MAJOR == 3 && GLFW_VERSION_MINOR < 3)
         if(!s->init_hints.empty()){
                 log_msg(LOG_LEVEL_WARNING, "GLFW version < 3.3 doesn't support init hints. Ignoring them.\n");

src/video_display/sdl3.c

@@ -5,7 +5,7 @@
  * @author Martin Pulec     <pulec@cesnet.cz>
  */
 /*
- * Copyright (c) 2018-2026 CESNET, zájmové sdružení právnických osob
+ * Copyright (c) 2018-2025 CESNET
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -60,7 +60,7 @@
 #include <stdbool.h>  // for true, bool, false
 #include <stdint.h>   // for int64_t, uint32_t
 #include <stdio.h>    // for printf, sscanf, snprintf
-#include <stdlib.h>   // for atoi, calloc, free, getenv
+#include <stdlib.h>   // for atoi, free, calloc
 #include <string.h>   // for NULL, strlen, strcmp, strstr, strchr
 #include <time.h>     // for timespec_get, TIME_UTC, timespec
 
@@ -1083,11 +1083,6 @@ display_sdl3_init(struct module *parent, const char *fmt, unsigned int flags)
         if (driver != NULL) {
                 SDL_CHECK(SDL_SetHint(SDL_HINT_VIDEO_DRIVER, driver));
         }
-        if (getenv("WAYLAND_DISPLAY")) {
-                SDL_CHECK(
-                    SDL_SetHint("SDL_VIDEO_WAYLAND_PREFER_LIBDECOR", "0"));
-                MSG(INFO, "Disabling libdecor.\n");
-        }
         if (!SDL_InitSubSystem(SDL_INIT_VIDEO)) {
                 MSG(ERROR, "Unable to initialize SDL3 video: %s\n",
                     SDL_GetError());