Merge 1c4ab4fd56 into 0d2d85d19c

The glfwCreateWindow function ensures that the width and height are
at least greater or equal than zero, but on X11 it is invalid to
create a window with dimensions that equal zero, see [1].

This change ensures that the dimensions passed to XCreateWindow are
at least 1 by 1.

This issue was detected in [2], where a call to glfwCreateWindow
was done to request a 1x1 window, with a _glfw.x11.contentScaleX of
less than 1.0 (0.958333) this results in a request for a 0x0 window
which then causes an BadWindow error from X11.

[1]: e003f52661/specs/libX11/CH03.xml (L1333-1337)
[2]: https://github.com/WerWolv/ImHex/pull/2390

CONTRIBUTORS.md

@@ -279,6 +279,7 @@ video tutorials.
  - Corentin Wallez
  - Torsten Walluhn
  - Patrick Walton
+ - Ivor Wanders
  - Jim Wang
  - Xo Wang
  - Andre Weissflog

README.md

@@ -144,6 +144,7 @@ information on what to include when reporting a bug.
  - [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
  - [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to
    `GLFW_NATIVE_CONTEXT_API` (#2518)
+ - [X11] Bugfix: Prevent BadWindow when creating small windows (#2754)
 
 
 ## Contact

src/wl_window.c

@@ -1778,24 +1778,6 @@ static void keyboardHandleLeave(void* userData,
     if (!window)
         return;
 
-    // Handle any key repeats up to this point. We don't poll as this should be infrequent.
-    uint64_t repeats;
-    if (read(_glfw.wl.keyRepeatTimerfd, &repeats, sizeof(repeats)) == 8)
-    {
-        if(_glfw.wl.keyboardFocus)
-        {
-            for (uint64_t i = 0; i < repeats; i++)
-            {
-                _glfwInputKey(_glfw.wl.keyboardFocus,
-                              translateKey(_glfw.wl.keyRepeatScancode),
-                              _glfw.wl.keyRepeatScancode,
-                              GLFW_PRESS,
-                              _glfw.wl.xkb.modifiers);
-                inputText(_glfw.wl.keyboardFocus, _glfw.wl.keyRepeatScancode);
-            }
-        }
-    }
-
     struct itimerspec timer = {0};
     timerfd_settime(_glfw.wl.keyRepeatTimerfd, 0, &timer, NULL);
 

src/x11_window.c

@@ -576,6 +576,10 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
         height *= _glfw.x11.contentScaleY;
     }
 
+    // The dimensions must be nonzero, or a BadValue error results.
+    width = _glfw_max(1, width);
+    height = _glfw_max(1, height);
+
     int xpos = 0, ypos = 0;
 
     if (wndconfig->xpos != GLFW_ANY_POSITION && wndconfig->ypos != GLFW_ANY_POSITION)