--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/freeglut/src/egl/fg_init_egl.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,74 @@
+/*
+ * fg_init_egl.c
+ *
+ * Various freeglut initialization functions.
+ *
+ * Copyright (C) 2012  Sylvain Beucler
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define FREEGLUT_BUILDING_LIB
+#include <GL/freeglut.h>
+#include "fg_internal.h"
+
+/*
+ * A call to this function should initialize all the display stuff...
+ */
+void fghPlatformInitializeEGL()
+{
+  /* CreateDisplay */
+  /* Using EGL_DEFAULT_DISPLAY, or a specific native display */
+  EGLNativeDisplayType nativeDisplay = EGL_DEFAULT_DISPLAY;
+  fgDisplay.pDisplay.egl.Display = eglGetDisplay(nativeDisplay);
+
+  FREEGLUT_INTERNAL_ERROR_EXIT(fgDisplay.pDisplay.egl.Display != EGL_NO_DISPLAY,
+			       "No display available", "fgPlatformInitialize");
+  if (eglInitialize(fgDisplay.pDisplay.egl.Display, &fgDisplay.pDisplay.egl.MajorVersion, &fgDisplay.pDisplay.egl.MinorVersion) != EGL_TRUE)
+    fgError("eglInitialize: error %x\n", eglGetError());
+
+# ifdef GL_VERSION_1_1  /* or later */
+  eglBindAPI(EGL_OPENGL_API);
+# else
+  eglBindAPI(EGL_OPENGL_ES_API);
+# endif
+
+  /* fgDisplay.ScreenWidth = ...; */
+  /* fgDisplay.ScreenHeight = ...; */
+  /* fgDisplay.ScreenWidthMM = ...; */
+  /* fgDisplay.ScreenHeightMM = ...; */
+}
+
+void fghPlatformCloseDisplayEGL()
+{
+  if (fgDisplay.pDisplay.egl.Display != EGL_NO_DISPLAY) {
+    eglTerminate(fgDisplay.pDisplay.egl.Display);
+    fgDisplay.pDisplay.egl.Display = EGL_NO_DISPLAY;
+    fgDisplay.pDisplay.egl.MajorVersion = 0;
+    fgDisplay.pDisplay.egl.MinorVersion = 0;
+  }
+}
+
+/**
+ * Destroy a menu context
+ */
+void fgPlatformDestroyContext ( SFG_PlatformDisplay pDisplay, SFG_WindowContextType MContext )
+{
+  if (MContext != EGL_NO_CONTEXT)
+    eglDestroyContext(pDisplay.egl.Display, MContext);
+}