diff --git a/.reuse/dep5 b/.reuse/dep5
index e2b525dc8..a52991950 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -87,6 +87,11 @@ Copyright: 2013-2020, The Khronos Group, Inc.
 License: Apache-2.0
 Comment: This is generated from the specification XML (licensed as above) by GLAD2.
 
+Files: src/external/glad/include/glad/glx.h
+Copyright: 2013-2020, The Khronos Group, Inc.
+License: Apache-2.0
+Comment: This is generated from the specification XML (licensed as above) by GLAD2.
+
 Files:  src/external/glad/src/*
 Copyright: 2013-2020, David Herberth
 License: MIT
diff --git a/src/external/glad/command.sh b/src/external/glad/command.sh
index 8540df6c2..ed98ca58d 100755
--- a/src/external/glad/command.sh
+++ b/src/external/glad/command.sh
@@ -12,7 +12,7 @@
 # command line (for the glad2 branch!)
 
 glad --merge \
-	--api='gl:core=4.5,gles2=3.2,egl=1.4' \
+	--api='gl:core=4.5,gles2=3.2,egl=1.4,glx=1.3' \
 	--extensions=\
 GL_EXT_external_buffer,\
 GL_EXT_memory_object,\
diff --git a/src/external/glad/include/glad/egl.h b/src/external/glad/include/glad/egl.h
index bbcf3aaa8..f6e9b2371 100644
--- a/src/external/glad/include/glad/egl.h
+++ b/src/external/glad/include/glad/egl.h
@@ -1,5 +1,5 @@
 /**
- * Loader generated by glad 2.0.0-beta on Wed Mar  3 17:01:11 2021
+ * Loader generated by glad 2.0.0-beta on Tue Dec 21 22:40:27 2021
  *
  * Generator: C/C++
  * Specification: egl
diff --git a/src/external/glad/include/glad/gl.h b/src/external/glad/include/glad/gl.h
index 8ca8b88c2..99b320601 100644
--- a/src/external/glad/include/glad/gl.h
+++ b/src/external/glad/include/glad/gl.h
@@ -1,5 +1,5 @@
 /**
- * Loader generated by glad 2.0.0-beta on Wed Mar  3 17:01:11 2021
+ * Loader generated by glad 2.0.0-beta on Tue Dec 21 22:40:26 2021
  *
  * Generator: C/C++
  * Specification: gl
diff --git a/src/external/glad/include/glad/glx.h b/src/external/glad/include/glad/glx.h
new file mode 100644
index 000000000..d91ed7957
--- /dev/null
+++ b/src/external/glad/include/glad/glx.h
@@ -0,0 +1,575 @@
+/**
+ * Loader generated by glad 2.0.0-beta on Tue Dec 21 22:40:27 2021
+ *
+ * Generator: C/C++
+ * Specification: glx
+ * Extensions: 0
+ *
+ * APIs:
+ *  - glx=1.3
+ *
+ * Options:
+ *  - ALIAS = False
+ *  - DEBUG = False
+ *  - HEADER_ONLY = False
+ *  - LOADER = False
+ *  - MX = False
+ *  - MX_GLOBAL = False
+ *  - ON_DEMAND = False
+ *
+ * Commandline:
+ *    --merge --api='glx=1.3' --extensions='' c
+ *
+ * Online:
+ *    http://glad.sh/#api=glx%3D1.3&extensions=&generator=c&options=MERGE
+ *
+ */
+
+#ifndef GLAD_GLX_H_
+#define GLAD_GLX_H_
+
+#ifdef GLX_H
+  #error GLX header already included (API: glx), remove previous include!
+#endif
+#define GLX_H 1
+
+
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#include <glad/gl.h>
+
+#define GLAD_GLX
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef GLAD_PLATFORM_H_
+#define GLAD_PLATFORM_H_
+
+#ifndef GLAD_PLATFORM_WIN32
+  #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__)
+    #define GLAD_PLATFORM_WIN32 1
+  #else
+    #define GLAD_PLATFORM_WIN32 0
+  #endif
+#endif
+
+#ifndef GLAD_PLATFORM_APPLE
+  #ifdef __APPLE__
+    #define GLAD_PLATFORM_APPLE 1
+  #else
+    #define GLAD_PLATFORM_APPLE 0
+  #endif
+#endif
+
+#ifndef GLAD_PLATFORM_EMSCRIPTEN
+  #ifdef __EMSCRIPTEN__
+    #define GLAD_PLATFORM_EMSCRIPTEN 1
+  #else
+    #define GLAD_PLATFORM_EMSCRIPTEN 0
+  #endif
+#endif
+
+#ifndef GLAD_PLATFORM_UWP
+  #if defined(_MSC_VER) && !defined(GLAD_INTERNAL_HAVE_WINAPIFAMILY)
+    #ifdef __has_include
+      #if __has_include(<winapifamily.h>)
+        #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1
+      #endif
+    #elif _MSC_VER >= 1700 && !_USING_V110_SDK71_
+      #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1
+    #endif
+  #endif
+
+  #ifdef GLAD_INTERNAL_HAVE_WINAPIFAMILY
+    #include <winapifamily.h>
+    #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+      #define GLAD_PLATFORM_UWP 1
+    #endif
+  #endif
+
+  #ifndef GLAD_PLATFORM_UWP
+    #define GLAD_PLATFORM_UWP 0
+  #endif
+#endif
+
+#ifdef __GNUC__
+  #define GLAD_GNUC_EXTENSION __extension__
+#else
+  #define GLAD_GNUC_EXTENSION
+#endif
+
+#ifndef GLAD_API_CALL
+  #if defined(GLAD_API_CALL_EXPORT)
+    #if GLAD_PLATFORM_WIN32 || defined(__CYGWIN__)
+      #if defined(GLAD_API_CALL_EXPORT_BUILD)
+        #if defined(__GNUC__)
+          #define GLAD_API_CALL __attribute__ ((dllexport)) extern
+        #else
+          #define GLAD_API_CALL __declspec(dllexport) extern
+        #endif
+      #else
+        #if defined(__GNUC__)
+          #define GLAD_API_CALL __attribute__ ((dllimport)) extern
+        #else
+          #define GLAD_API_CALL __declspec(dllimport) extern
+        #endif
+      #endif
+    #elif defined(__GNUC__) && defined(GLAD_API_CALL_EXPORT_BUILD)
+      #define GLAD_API_CALL __attribute__ ((visibility ("default"))) extern
+    #else
+      #define GLAD_API_CALL extern
+    #endif
+  #else
+    #define GLAD_API_CALL extern
+  #endif
+#endif
+
+#ifdef APIENTRY
+  #define GLAD_API_PTR APIENTRY
+#elif GLAD_PLATFORM_WIN32
+  #define GLAD_API_PTR __stdcall
+#else
+  #define GLAD_API_PTR
+#endif
+
+#ifndef GLAPI
+#define GLAPI GLAD_API_CALL
+#endif
+
+#ifndef GLAPIENTRY
+#define GLAPIENTRY GLAD_API_PTR
+#endif
+
+#define GLAD_MAKE_VERSION(major, minor) (major * 10000 + minor)
+#define GLAD_VERSION_MAJOR(version) (version / 10000)
+#define GLAD_VERSION_MINOR(version) (version % 10000)
+
+#define GLAD_GENERATOR_VERSION "2.0.0-beta"
+
+typedef void (*GLADapiproc)(void);
+
+typedef GLADapiproc (*GLADloadfunc)(const char *name);
+typedef GLADapiproc (*GLADuserptrloadfunc)(void *userptr, const char *name);
+
+typedef void (*GLADprecallback)(const char *name, GLADapiproc apiproc, int len_args, ...);
+typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apiproc, int len_args, ...);
+
+#endif /* GLAD_PLATFORM_H_ */
+
+#define GLX_ACCUM_ALPHA_SIZE 17
+#define GLX_ACCUM_BLUE_SIZE 16
+#define GLX_ACCUM_BUFFER_BIT 0x00000080
+#define GLX_ACCUM_GREEN_SIZE 15
+#define GLX_ACCUM_RED_SIZE 14
+#define GLX_ALPHA_SIZE 11
+#define GLX_AUX_BUFFERS 7
+#define GLX_AUX_BUFFERS_BIT 0x00000010
+#define GLX_BACK_LEFT_BUFFER_BIT 0x00000004
+#define GLX_BACK_RIGHT_BUFFER_BIT 0x00000008
+#define GLX_BAD_ATTRIBUTE 2
+#define GLX_BAD_CONTEXT 5
+#define GLX_BAD_ENUM 7
+#define GLX_BAD_SCREEN 1
+#define GLX_BAD_VALUE 6
+#define GLX_BAD_VISUAL 4
+#define GLX_BLUE_SIZE 10
+#define GLX_BUFFER_SIZE 2
+#define GLX_BufferSwapComplete 1
+#define GLX_COLOR_INDEX_BIT 0x00000002
+#define GLX_COLOR_INDEX_TYPE 0x8015
+#define GLX_CONFIG_CAVEAT 0x20
+#define GLX_DAMAGED 0x8020
+#define GLX_DEPTH_BUFFER_BIT 0x00000020
+#define GLX_DEPTH_SIZE 12
+#define GLX_DIRECT_COLOR 0x8003
+#define GLX_DONT_CARE 0xFFFFFFFF
+#define GLX_DOUBLEBUFFER 5
+#define GLX_DRAWABLE_TYPE 0x8010
+#define GLX_EVENT_MASK 0x801F
+#define GLX_EXTENSIONS 0x3
+#define GLX_EXTENSION_NAME "GLX"
+#define GLX_FBCONFIG_ID 0x8013
+#define GLX_FRONT_LEFT_BUFFER_BIT 0x00000001
+#define GLX_FRONT_RIGHT_BUFFER_BIT 0x00000002
+#define GLX_GRAY_SCALE 0x8006
+#define GLX_GREEN_SIZE 9
+#define GLX_HEIGHT 0x801E
+#define GLX_LARGEST_PBUFFER 0x801C
+#define GLX_LEVEL 3
+#define GLX_MAX_PBUFFER_HEIGHT 0x8017
+#define GLX_MAX_PBUFFER_PIXELS 0x8018
+#define GLX_MAX_PBUFFER_WIDTH 0x8016
+#define GLX_NONE 0x8000
+#define GLX_NON_CONFORMANT_CONFIG 0x800D
+#define GLX_NO_EXTENSION 3
+#define GLX_PBUFFER 0x8023
+#define GLX_PBUFFER_BIT 0x00000004
+#define GLX_PBUFFER_CLOBBER_MASK 0x08000000
+#define GLX_PBUFFER_HEIGHT 0x8040
+#define GLX_PBUFFER_WIDTH 0x8041
+#define GLX_PIXMAP_BIT 0x00000002
+#define GLX_PRESERVED_CONTENTS 0x801B
+#define GLX_PSEUDO_COLOR 0x8004
+#define GLX_PbufferClobber 0
+#define GLX_RED_SIZE 8
+#define GLX_RENDER_TYPE 0x8011
+#define GLX_RGBA 4
+#define GLX_RGBA_BIT 0x00000001
+#define GLX_RGBA_TYPE 0x8014
+#define GLX_SAVED 0x8021
+#define GLX_SCREEN 0x800C
+#define GLX_SLOW_CONFIG 0x8001
+#define GLX_STATIC_COLOR 0x8005
+#define GLX_STATIC_GRAY 0x8007
+#define GLX_STENCIL_BUFFER_BIT 0x00000040
+#define GLX_STENCIL_SIZE 13
+#define GLX_STEREO 6
+#define GLX_TRANSPARENT_ALPHA_VALUE 0x28
+#define GLX_TRANSPARENT_BLUE_VALUE 0x27
+#define GLX_TRANSPARENT_GREEN_VALUE 0x26
+#define GLX_TRANSPARENT_INDEX 0x8009
+#define GLX_TRANSPARENT_INDEX_VALUE 0x24
+#define GLX_TRANSPARENT_RED_VALUE 0x25
+#define GLX_TRANSPARENT_RGB 0x8008
+#define GLX_TRANSPARENT_TYPE 0x23
+#define GLX_TRUE_COLOR 0x8002
+#define GLX_USE_GL 1
+#define GLX_VENDOR 0x1
+#define GLX_VERSION 0x2
+#define GLX_VISUAL_ID 0x800B
+#define GLX_WIDTH 0x801D
+#define GLX_WINDOW 0x8022
+#define GLX_WINDOW_BIT 0x00000001
+#define GLX_X_RENDERABLE 0x8012
+#define GLX_X_VISUAL_TYPE 0x22
+#define __GLX_NUMBER_EVENTS 17
+
+
+#ifndef GLEXT_64_TYPES_DEFINED
+/* This code block is duplicated in glext.h, so must be protected */
+#define GLEXT_64_TYPES_DEFINED
+/* Define int32_t, int64_t, and uint64_t types for UST/MSC */
+/* (as used in the GLX_OML_sync_control extension). */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#include <inttypes.h>
+#elif defined(__sun__) || defined(__digital__)
+#include <inttypes.h>
+#if defined(__STDC__)
+#if defined(__arch64__) || defined(_LP64)
+typedef long int int64_t;
+typedef unsigned long int uint64_t;
+#else
+typedef long long int int64_t;
+typedef unsigned long long int uint64_t;
+#endif /* __arch64__ */
+#endif /* __STDC__ */
+#elif defined( __VMS ) || defined(__sgi)
+#include <inttypes.h>
+#elif defined(__SCO__) || defined(__USLC__)
+#include <stdint.h>
+#elif defined(__UNIXOS2__) || defined(__SOL64__)
+typedef long int int32_t;
+typedef long long int int64_t;
+typedef unsigned long long int uint64_t;
+#elif defined(_WIN32) && defined(__GNUC__)
+#include <stdint.h>
+#elif defined(_WIN32)
+typedef __int32 int32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+/* Fallback if nothing above works */
+#include <inttypes.h>
+#endif
+#endif
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
+
+#else
+
+#endif
+
+
+#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060)
+
+#else
+
+#endif
+
+
+
+
+
+
+
+
+typedef XID GLXFBConfigID;
+
+typedef struct __GLXFBConfigRec *GLXFBConfig;
+
+typedef XID GLXContextID;
+
+typedef struct __GLXcontextRec *GLXContext;
+
+typedef XID GLXPixmap;
+
+typedef XID GLXDrawable;
+
+typedef XID GLXWindow;
+
+typedef XID GLXPbuffer;
+
+typedef void (GLAD_API_PTR *__GLXextFuncPtr)(void);
+
+typedef XID GLXVideoCaptureDeviceNV;
+
+typedef unsigned int GLXVideoDeviceNV;
+
+typedef XID GLXVideoSourceSGIX;
+
+typedef XID GLXFBConfigIDSGIX;
+
+typedef struct __GLXFBConfigRec *GLXFBConfigSGIX;
+
+typedef XID GLXPbufferSGIX;
+
+typedef struct {
+    int event_type;             /* GLX_DAMAGED or GLX_SAVED */
+    int draw_type;              /* GLX_WINDOW or GLX_PBUFFER */
+    unsigned long serial;       /* # of last request processed by server */
+    Bool send_event;            /* true if this came for SendEvent request */
+    Display *display;           /* display the event was read from */
+    GLXDrawable drawable;       /* XID of Drawable */
+    unsigned int buffer_mask;   /* mask indicating which buffers are affected */
+    unsigned int aux_buffer;    /* which aux buffer was affected */
+    int x, y;
+    int width, height;
+    int count;                  /* if nonzero, at least this many more */
+} GLXPbufferClobberEvent;
+
+typedef struct {
+    int type;
+    unsigned long serial;       /* # of last request processed by server */
+    Bool send_event;            /* true if this came from a SendEvent request */
+    Display *display;           /* Display the event was read from */
+    GLXDrawable drawable;       /* drawable on which event was requested in event mask */
+    int event_type;
+    int64_t ust;
+    int64_t msc;
+    int64_t sbc;
+} GLXBufferSwapComplete;
+
+typedef union __GLXEvent {
+    GLXPbufferClobberEvent glxpbufferclobber;
+    GLXBufferSwapComplete glxbufferswapcomplete;
+    long pad[24];
+} GLXEvent;
+
+typedef struct {
+    int type;
+    unsigned long serial;
+    Bool send_event;
+    Display *display;
+    int extension;
+    int evtype;
+    GLXDrawable window;
+    Bool stereo_tree;
+} GLXStereoNotifyEventEXT;
+
+typedef struct {
+    int type;
+    unsigned long serial;   /* # of last request processed by server */
+    Bool send_event;        /* true if this came for SendEvent request */
+    Display *display;       /* display the event was read from */
+    GLXDrawable drawable;   /* i.d. of Drawable */
+    int event_type;         /* GLX_DAMAGED_SGIX or GLX_SAVED_SGIX */
+    int draw_type;          /* GLX_WINDOW_SGIX or GLX_PBUFFER_SGIX */
+    unsigned int mask;      /* mask indicating which buffers are affected*/
+    int x, y;
+    int width, height;
+    int count;              /* if nonzero, at least this many more */
+} GLXBufferClobberEventSGIX;
+
+typedef struct {
+    char    pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
+    int     networkId;
+} GLXHyperpipeNetworkSGIX;
+
+typedef struct {
+    char    pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
+    int     channel;
+    unsigned int participationType;
+    int     timeSlice;
+} GLXHyperpipeConfigSGIX;
+
+typedef struct {
+    char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
+    int srcXOrigin, srcYOrigin, srcWidth, srcHeight;
+    int destXOrigin, destYOrigin, destWidth, destHeight;
+} GLXPipeRect;
+
+typedef struct {
+    char pipeName[80]; /* Should be [GLX_HYPERPIPE_PIPE_NAME_LENGTH_SGIX] */
+    int XOrigin, YOrigin, maxHeight, maxWidth;
+} GLXPipeRectLimits;
+
+
+
+#define GLX_VERSION_1_0 1
+GLAD_API_CALL int GLAD_GLX_VERSION_1_0;
+#define GLX_VERSION_1_1 1
+GLAD_API_CALL int GLAD_GLX_VERSION_1_1;
+#define GLX_VERSION_1_2 1
+GLAD_API_CALL int GLAD_GLX_VERSION_1_2;
+#define GLX_VERSION_1_3 1
+GLAD_API_CALL int GLAD_GLX_VERSION_1_3;
+
+
+typedef GLXFBConfig * (GLAD_API_PTR *PFNGLXCHOOSEFBCONFIGPROC)(Display * dpy, int screen, const int * attrib_list, int * nelements);
+typedef XVisualInfo * (GLAD_API_PTR *PFNGLXCHOOSEVISUALPROC)(Display * dpy, int screen, int * attribList);
+typedef void (GLAD_API_PTR *PFNGLXCOPYCONTEXTPROC)(Display * dpy, GLXContext src, GLXContext dst, unsigned long mask);
+typedef GLXContext (GLAD_API_PTR *PFNGLXCREATECONTEXTPROC)(Display * dpy, XVisualInfo * vis, GLXContext shareList, Bool direct);
+typedef GLXPixmap (GLAD_API_PTR *PFNGLXCREATEGLXPIXMAPPROC)(Display * dpy, XVisualInfo * visual, Pixmap pixmap);
+typedef GLXContext (GLAD_API_PTR *PFNGLXCREATENEWCONTEXTPROC)(Display * dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
+typedef GLXPbuffer (GLAD_API_PTR *PFNGLXCREATEPBUFFERPROC)(Display * dpy, GLXFBConfig config, const int * attrib_list);
+typedef GLXPixmap (GLAD_API_PTR *PFNGLXCREATEPIXMAPPROC)(Display * dpy, GLXFBConfig config, Pixmap pixmap, const int * attrib_list);
+typedef GLXWindow (GLAD_API_PTR *PFNGLXCREATEWINDOWPROC)(Display * dpy, GLXFBConfig config, Window win, const int * attrib_list);
+typedef void (GLAD_API_PTR *PFNGLXDESTROYCONTEXTPROC)(Display * dpy, GLXContext ctx);
+typedef void (GLAD_API_PTR *PFNGLXDESTROYGLXPIXMAPPROC)(Display * dpy, GLXPixmap pixmap);
+typedef void (GLAD_API_PTR *PFNGLXDESTROYPBUFFERPROC)(Display * dpy, GLXPbuffer pbuf);
+typedef void (GLAD_API_PTR *PFNGLXDESTROYPIXMAPPROC)(Display * dpy, GLXPixmap pixmap);
+typedef void (GLAD_API_PTR *PFNGLXDESTROYWINDOWPROC)(Display * dpy, GLXWindow win);
+typedef const char * (GLAD_API_PTR *PFNGLXGETCLIENTSTRINGPROC)(Display * dpy, int name);
+typedef int (GLAD_API_PTR *PFNGLXGETCONFIGPROC)(Display * dpy, XVisualInfo * visual, int attrib, int * value);
+typedef GLXContext (GLAD_API_PTR *PFNGLXGETCURRENTCONTEXTPROC)(void);
+typedef Display * (GLAD_API_PTR *PFNGLXGETCURRENTDISPLAYPROC)(void);
+typedef GLXDrawable (GLAD_API_PTR *PFNGLXGETCURRENTDRAWABLEPROC)(void);
+typedef GLXDrawable (GLAD_API_PTR *PFNGLXGETCURRENTREADDRAWABLEPROC)(void);
+typedef int (GLAD_API_PTR *PFNGLXGETFBCONFIGATTRIBPROC)(Display * dpy, GLXFBConfig config, int attribute, int * value);
+typedef GLXFBConfig * (GLAD_API_PTR *PFNGLXGETFBCONFIGSPROC)(Display * dpy, int screen, int * nelements);
+typedef void (GLAD_API_PTR *PFNGLXGETSELECTEDEVENTPROC)(Display * dpy, GLXDrawable draw, unsigned long * event_mask);
+typedef XVisualInfo * (GLAD_API_PTR *PFNGLXGETVISUALFROMFBCONFIGPROC)(Display * dpy, GLXFBConfig config);
+typedef Bool (GLAD_API_PTR *PFNGLXISDIRECTPROC)(Display * dpy, GLXContext ctx);
+typedef Bool (GLAD_API_PTR *PFNGLXMAKECONTEXTCURRENTPROC)(Display * dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
+typedef Bool (GLAD_API_PTR *PFNGLXMAKECURRENTPROC)(Display * dpy, GLXDrawable drawable, GLXContext ctx);
+typedef int (GLAD_API_PTR *PFNGLXQUERYCONTEXTPROC)(Display * dpy, GLXContext ctx, int attribute, int * value);
+typedef void (GLAD_API_PTR *PFNGLXQUERYDRAWABLEPROC)(Display * dpy, GLXDrawable draw, int attribute, unsigned int * value);
+typedef Bool (GLAD_API_PTR *PFNGLXQUERYEXTENSIONPROC)(Display * dpy, int * errorb, int * event);
+typedef const char * (GLAD_API_PTR *PFNGLXQUERYEXTENSIONSSTRINGPROC)(Display * dpy, int screen);
+typedef const char * (GLAD_API_PTR *PFNGLXQUERYSERVERSTRINGPROC)(Display * dpy, int screen, int name);
+typedef Bool (GLAD_API_PTR *PFNGLXQUERYVERSIONPROC)(Display * dpy, int * maj, int * min);
+typedef void (GLAD_API_PTR *PFNGLXSELECTEVENTPROC)(Display * dpy, GLXDrawable draw, unsigned long event_mask);
+typedef void (GLAD_API_PTR *PFNGLXSWAPBUFFERSPROC)(Display * dpy, GLXDrawable drawable);
+typedef void (GLAD_API_PTR *PFNGLXUSEXFONTPROC)(Font font, int first, int count, int list);
+typedef void (GLAD_API_PTR *PFNGLXWAITGLPROC)(void);
+typedef void (GLAD_API_PTR *PFNGLXWAITXPROC)(void);
+
+GLAD_API_CALL PFNGLXCHOOSEFBCONFIGPROC glad_glXChooseFBConfig;
+#define glXChooseFBConfig glad_glXChooseFBConfig
+GLAD_API_CALL PFNGLXCHOOSEVISUALPROC glad_glXChooseVisual;
+#define glXChooseVisual glad_glXChooseVisual
+GLAD_API_CALL PFNGLXCOPYCONTEXTPROC glad_glXCopyContext;
+#define glXCopyContext glad_glXCopyContext
+GLAD_API_CALL PFNGLXCREATECONTEXTPROC glad_glXCreateContext;
+#define glXCreateContext glad_glXCreateContext
+GLAD_API_CALL PFNGLXCREATEGLXPIXMAPPROC glad_glXCreateGLXPixmap;
+#define glXCreateGLXPixmap glad_glXCreateGLXPixmap
+GLAD_API_CALL PFNGLXCREATENEWCONTEXTPROC glad_glXCreateNewContext;
+#define glXCreateNewContext glad_glXCreateNewContext
+GLAD_API_CALL PFNGLXCREATEPBUFFERPROC glad_glXCreatePbuffer;
+#define glXCreatePbuffer glad_glXCreatePbuffer
+GLAD_API_CALL PFNGLXCREATEPIXMAPPROC glad_glXCreatePixmap;
+#define glXCreatePixmap glad_glXCreatePixmap
+GLAD_API_CALL PFNGLXCREATEWINDOWPROC glad_glXCreateWindow;
+#define glXCreateWindow glad_glXCreateWindow
+GLAD_API_CALL PFNGLXDESTROYCONTEXTPROC glad_glXDestroyContext;
+#define glXDestroyContext glad_glXDestroyContext
+GLAD_API_CALL PFNGLXDESTROYGLXPIXMAPPROC glad_glXDestroyGLXPixmap;
+#define glXDestroyGLXPixmap glad_glXDestroyGLXPixmap
+GLAD_API_CALL PFNGLXDESTROYPBUFFERPROC glad_glXDestroyPbuffer;
+#define glXDestroyPbuffer glad_glXDestroyPbuffer
+GLAD_API_CALL PFNGLXDESTROYPIXMAPPROC glad_glXDestroyPixmap;
+#define glXDestroyPixmap glad_glXDestroyPixmap
+GLAD_API_CALL PFNGLXDESTROYWINDOWPROC glad_glXDestroyWindow;
+#define glXDestroyWindow glad_glXDestroyWindow
+GLAD_API_CALL PFNGLXGETCLIENTSTRINGPROC glad_glXGetClientString;
+#define glXGetClientString glad_glXGetClientString
+GLAD_API_CALL PFNGLXGETCONFIGPROC glad_glXGetConfig;
+#define glXGetConfig glad_glXGetConfig
+GLAD_API_CALL PFNGLXGETCURRENTCONTEXTPROC glad_glXGetCurrentContext;
+#define glXGetCurrentContext glad_glXGetCurrentContext
+GLAD_API_CALL PFNGLXGETCURRENTDISPLAYPROC glad_glXGetCurrentDisplay;
+#define glXGetCurrentDisplay glad_glXGetCurrentDisplay
+GLAD_API_CALL PFNGLXGETCURRENTDRAWABLEPROC glad_glXGetCurrentDrawable;
+#define glXGetCurrentDrawable glad_glXGetCurrentDrawable
+GLAD_API_CALL PFNGLXGETCURRENTREADDRAWABLEPROC glad_glXGetCurrentReadDrawable;
+#define glXGetCurrentReadDrawable glad_glXGetCurrentReadDrawable
+GLAD_API_CALL PFNGLXGETFBCONFIGATTRIBPROC glad_glXGetFBConfigAttrib;
+#define glXGetFBConfigAttrib glad_glXGetFBConfigAttrib
+GLAD_API_CALL PFNGLXGETFBCONFIGSPROC glad_glXGetFBConfigs;
+#define glXGetFBConfigs glad_glXGetFBConfigs
+GLAD_API_CALL PFNGLXGETSELECTEDEVENTPROC glad_glXGetSelectedEvent;
+#define glXGetSelectedEvent glad_glXGetSelectedEvent
+GLAD_API_CALL PFNGLXGETVISUALFROMFBCONFIGPROC glad_glXGetVisualFromFBConfig;
+#define glXGetVisualFromFBConfig glad_glXGetVisualFromFBConfig
+GLAD_API_CALL PFNGLXISDIRECTPROC glad_glXIsDirect;
+#define glXIsDirect glad_glXIsDirect
+GLAD_API_CALL PFNGLXMAKECONTEXTCURRENTPROC glad_glXMakeContextCurrent;
+#define glXMakeContextCurrent glad_glXMakeContextCurrent
+GLAD_API_CALL PFNGLXMAKECURRENTPROC glad_glXMakeCurrent;
+#define glXMakeCurrent glad_glXMakeCurrent
+GLAD_API_CALL PFNGLXQUERYCONTEXTPROC glad_glXQueryContext;
+#define glXQueryContext glad_glXQueryContext
+GLAD_API_CALL PFNGLXQUERYDRAWABLEPROC glad_glXQueryDrawable;
+#define glXQueryDrawable glad_glXQueryDrawable
+GLAD_API_CALL PFNGLXQUERYEXTENSIONPROC glad_glXQueryExtension;
+#define glXQueryExtension glad_glXQueryExtension
+GLAD_API_CALL PFNGLXQUERYEXTENSIONSSTRINGPROC glad_glXQueryExtensionsString;
+#define glXQueryExtensionsString glad_glXQueryExtensionsString
+GLAD_API_CALL PFNGLXQUERYSERVERSTRINGPROC glad_glXQueryServerString;
+#define glXQueryServerString glad_glXQueryServerString
+GLAD_API_CALL PFNGLXQUERYVERSIONPROC glad_glXQueryVersion;
+#define glXQueryVersion glad_glXQueryVersion
+GLAD_API_CALL PFNGLXSELECTEVENTPROC glad_glXSelectEvent;
+#define glXSelectEvent glad_glXSelectEvent
+GLAD_API_CALL PFNGLXSWAPBUFFERSPROC glad_glXSwapBuffers;
+#define glXSwapBuffers glad_glXSwapBuffers
+GLAD_API_CALL PFNGLXUSEXFONTPROC glad_glXUseXFont;
+#define glXUseXFont glad_glXUseXFont
+GLAD_API_CALL PFNGLXWAITGLPROC glad_glXWaitGL;
+#define glXWaitGL glad_glXWaitGL
+GLAD_API_CALL PFNGLXWAITXPROC glad_glXWaitX;
+#define glXWaitX glad_glXWaitX
+
+
+
+
+
+GLAD_API_CALL int gladLoadGLXUserPtr(Display *display, int screen, GLADuserptrloadfunc load, void *userptr);
+GLAD_API_CALL int gladLoadGLX(Display *display, int screen, GLADloadfunc load);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src/external/glad/src/egl.c b/src/external/glad/src/egl.c
index c21c8259d..a9090be6c 100644
--- a/src/external/glad/src/egl.c
+++ b/src/external/glad/src/egl.c
@@ -311,7 +311,7 @@ int gladLoadEGL(EGLDisplay display, GLADloadfunc load) {
     return gladLoadEGLUserPtr(display, glad_egl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load);
 }
 
-
+ 
 
 
 #ifdef __cplusplus
diff --git a/src/external/glad/src/gl.c b/src/external/glad/src/gl.c
index fe203bd65..656691c8a 100644
--- a/src/external/glad/src/gl.c
+++ b/src/external/glad/src/gl.c
@@ -1989,14 +1989,17 @@ static int glad_gl_find_extensions_gl( int version) {
 }
 
 static int glad_gl_find_core_gl(void) {
-    int i, major, minor;
+    int i;
     const char* version;
     const char* prefixes[] = {
         "OpenGL ES-CM ",
         "OpenGL ES-CL ",
         "OpenGL ES ",
+        "OpenGL SC ",
         NULL
     };
+    int major = 0;
+    int minor = 0;
     version = (const char*) glad_glGetString(GL_VERSION);
     if (!version) return 0;
     for (i = 0;  prefixes[i];  i++) {
@@ -2101,14 +2104,17 @@ static int glad_gl_find_extensions_gles2( int version) {
 }
 
 static int glad_gl_find_core_gles2(void) {
-    int i, major, minor;
+    int i;
     const char* version;
     const char* prefixes[] = {
         "OpenGL ES-CM ",
         "OpenGL ES-CL ",
         "OpenGL ES ",
+        "OpenGL SC ",
         NULL
     };
+    int major = 0;
+    int minor = 0;
     version = (const char*) glad_glGetString(GL_VERSION);
     if (!version) return 0;
     for (i = 0;  prefixes[i];  i++) {
@@ -2162,7 +2168,7 @@ int gladLoadGLES2( GLADloadfunc load) {
 
 
 
-
+ 
 
 
 #ifdef __cplusplus
diff --git a/src/external/glad/src/glx.c b/src/external/glad/src/glx.c
new file mode 100644
index 000000000..2a61d6fa1
--- /dev/null
+++ b/src/external/glad/src/glx.c
@@ -0,0 +1,216 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glad/glx.h>
+
+#ifndef GLAD_IMPL_UTIL_C_
+#define GLAD_IMPL_UTIL_C_
+
+#ifdef _MSC_VER
+#define GLAD_IMPL_UTIL_SSCANF sscanf_s
+#else
+#define GLAD_IMPL_UTIL_SSCANF sscanf
+#endif
+
+#endif /* GLAD_IMPL_UTIL_C_ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+int GLAD_GLX_VERSION_1_0 = 0;
+int GLAD_GLX_VERSION_1_1 = 0;
+int GLAD_GLX_VERSION_1_2 = 0;
+int GLAD_GLX_VERSION_1_3 = 0;
+
+
+
+PFNGLXCHOOSEFBCONFIGPROC glad_glXChooseFBConfig = NULL;
+PFNGLXCHOOSEVISUALPROC glad_glXChooseVisual = NULL;
+PFNGLXCOPYCONTEXTPROC glad_glXCopyContext = NULL;
+PFNGLXCREATECONTEXTPROC glad_glXCreateContext = NULL;
+PFNGLXCREATEGLXPIXMAPPROC glad_glXCreateGLXPixmap = NULL;
+PFNGLXCREATENEWCONTEXTPROC glad_glXCreateNewContext = NULL;
+PFNGLXCREATEPBUFFERPROC glad_glXCreatePbuffer = NULL;
+PFNGLXCREATEPIXMAPPROC glad_glXCreatePixmap = NULL;
+PFNGLXCREATEWINDOWPROC glad_glXCreateWindow = NULL;
+PFNGLXDESTROYCONTEXTPROC glad_glXDestroyContext = NULL;
+PFNGLXDESTROYGLXPIXMAPPROC glad_glXDestroyGLXPixmap = NULL;
+PFNGLXDESTROYPBUFFERPROC glad_glXDestroyPbuffer = NULL;
+PFNGLXDESTROYPIXMAPPROC glad_glXDestroyPixmap = NULL;
+PFNGLXDESTROYWINDOWPROC glad_glXDestroyWindow = NULL;
+PFNGLXGETCLIENTSTRINGPROC glad_glXGetClientString = NULL;
+PFNGLXGETCONFIGPROC glad_glXGetConfig = NULL;
+PFNGLXGETCURRENTCONTEXTPROC glad_glXGetCurrentContext = NULL;
+PFNGLXGETCURRENTDISPLAYPROC glad_glXGetCurrentDisplay = NULL;
+PFNGLXGETCURRENTDRAWABLEPROC glad_glXGetCurrentDrawable = NULL;
+PFNGLXGETCURRENTREADDRAWABLEPROC glad_glXGetCurrentReadDrawable = NULL;
+PFNGLXGETFBCONFIGATTRIBPROC glad_glXGetFBConfigAttrib = NULL;
+PFNGLXGETFBCONFIGSPROC glad_glXGetFBConfigs = NULL;
+PFNGLXGETSELECTEDEVENTPROC glad_glXGetSelectedEvent = NULL;
+PFNGLXGETVISUALFROMFBCONFIGPROC glad_glXGetVisualFromFBConfig = NULL;
+PFNGLXISDIRECTPROC glad_glXIsDirect = NULL;
+PFNGLXMAKECONTEXTCURRENTPROC glad_glXMakeContextCurrent = NULL;
+PFNGLXMAKECURRENTPROC glad_glXMakeCurrent = NULL;
+PFNGLXQUERYCONTEXTPROC glad_glXQueryContext = NULL;
+PFNGLXQUERYDRAWABLEPROC glad_glXQueryDrawable = NULL;
+PFNGLXQUERYEXTENSIONPROC glad_glXQueryExtension = NULL;
+PFNGLXQUERYEXTENSIONSSTRINGPROC glad_glXQueryExtensionsString = NULL;
+PFNGLXQUERYSERVERSTRINGPROC glad_glXQueryServerString = NULL;
+PFNGLXQUERYVERSIONPROC glad_glXQueryVersion = NULL;
+PFNGLXSELECTEVENTPROC glad_glXSelectEvent = NULL;
+PFNGLXSWAPBUFFERSPROC glad_glXSwapBuffers = NULL;
+PFNGLXUSEXFONTPROC glad_glXUseXFont = NULL;
+PFNGLXWAITGLPROC glad_glXWaitGL = NULL;
+PFNGLXWAITXPROC glad_glXWaitX = NULL;
+
+
+static void glad_glx_load_GLX_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GLX_VERSION_1_0) return;
+    glad_glXChooseVisual = (PFNGLXCHOOSEVISUALPROC) load(userptr, "glXChooseVisual");
+    glad_glXCopyContext = (PFNGLXCOPYCONTEXTPROC) load(userptr, "glXCopyContext");
+    glad_glXCreateContext = (PFNGLXCREATECONTEXTPROC) load(userptr, "glXCreateContext");
+    glad_glXCreateGLXPixmap = (PFNGLXCREATEGLXPIXMAPPROC) load(userptr, "glXCreateGLXPixmap");
+    glad_glXDestroyContext = (PFNGLXDESTROYCONTEXTPROC) load(userptr, "glXDestroyContext");
+    glad_glXDestroyGLXPixmap = (PFNGLXDESTROYGLXPIXMAPPROC) load(userptr, "glXDestroyGLXPixmap");
+    glad_glXGetConfig = (PFNGLXGETCONFIGPROC) load(userptr, "glXGetConfig");
+    glad_glXGetCurrentContext = (PFNGLXGETCURRENTCONTEXTPROC) load(userptr, "glXGetCurrentContext");
+    glad_glXGetCurrentDrawable = (PFNGLXGETCURRENTDRAWABLEPROC) load(userptr, "glXGetCurrentDrawable");
+    glad_glXIsDirect = (PFNGLXISDIRECTPROC) load(userptr, "glXIsDirect");
+    glad_glXMakeCurrent = (PFNGLXMAKECURRENTPROC) load(userptr, "glXMakeCurrent");
+    glad_glXQueryExtension = (PFNGLXQUERYEXTENSIONPROC) load(userptr, "glXQueryExtension");
+    glad_glXQueryVersion = (PFNGLXQUERYVERSIONPROC) load(userptr, "glXQueryVersion");
+    glad_glXSwapBuffers = (PFNGLXSWAPBUFFERSPROC) load(userptr, "glXSwapBuffers");
+    glad_glXUseXFont = (PFNGLXUSEXFONTPROC) load(userptr, "glXUseXFont");
+    glad_glXWaitGL = (PFNGLXWAITGLPROC) load(userptr, "glXWaitGL");
+    glad_glXWaitX = (PFNGLXWAITXPROC) load(userptr, "glXWaitX");
+}
+static void glad_glx_load_GLX_VERSION_1_1( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GLX_VERSION_1_1) return;
+    glad_glXGetClientString = (PFNGLXGETCLIENTSTRINGPROC) load(userptr, "glXGetClientString");
+    glad_glXQueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC) load(userptr, "glXQueryExtensionsString");
+    glad_glXQueryServerString = (PFNGLXQUERYSERVERSTRINGPROC) load(userptr, "glXQueryServerString");
+}
+static void glad_glx_load_GLX_VERSION_1_2( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GLX_VERSION_1_2) return;
+    glad_glXGetCurrentDisplay = (PFNGLXGETCURRENTDISPLAYPROC) load(userptr, "glXGetCurrentDisplay");
+}
+static void glad_glx_load_GLX_VERSION_1_3( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GLX_VERSION_1_3) return;
+    glad_glXChooseFBConfig = (PFNGLXCHOOSEFBCONFIGPROC) load(userptr, "glXChooseFBConfig");
+    glad_glXCreateNewContext = (PFNGLXCREATENEWCONTEXTPROC) load(userptr, "glXCreateNewContext");
+    glad_glXCreatePbuffer = (PFNGLXCREATEPBUFFERPROC) load(userptr, "glXCreatePbuffer");
+    glad_glXCreatePixmap = (PFNGLXCREATEPIXMAPPROC) load(userptr, "glXCreatePixmap");
+    glad_glXCreateWindow = (PFNGLXCREATEWINDOWPROC) load(userptr, "glXCreateWindow");
+    glad_glXDestroyPbuffer = (PFNGLXDESTROYPBUFFERPROC) load(userptr, "glXDestroyPbuffer");
+    glad_glXDestroyPixmap = (PFNGLXDESTROYPIXMAPPROC) load(userptr, "glXDestroyPixmap");
+    glad_glXDestroyWindow = (PFNGLXDESTROYWINDOWPROC) load(userptr, "glXDestroyWindow");
+    glad_glXGetCurrentReadDrawable = (PFNGLXGETCURRENTREADDRAWABLEPROC) load(userptr, "glXGetCurrentReadDrawable");
+    glad_glXGetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC) load(userptr, "glXGetFBConfigAttrib");
+    glad_glXGetFBConfigs = (PFNGLXGETFBCONFIGSPROC) load(userptr, "glXGetFBConfigs");
+    glad_glXGetSelectedEvent = (PFNGLXGETSELECTEDEVENTPROC) load(userptr, "glXGetSelectedEvent");
+    glad_glXGetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC) load(userptr, "glXGetVisualFromFBConfig");
+    glad_glXMakeContextCurrent = (PFNGLXMAKECONTEXTCURRENTPROC) load(userptr, "glXMakeContextCurrent");
+    glad_glXQueryContext = (PFNGLXQUERYCONTEXTPROC) load(userptr, "glXQueryContext");
+    glad_glXQueryDrawable = (PFNGLXQUERYDRAWABLEPROC) load(userptr, "glXQueryDrawable");
+    glad_glXSelectEvent = (PFNGLXSELECTEVENTPROC) load(userptr, "glXSelectEvent");
+}
+
+
+
+static int glad_glx_has_extension(Display *display, int screen, const char *ext) {
+#ifndef GLX_VERSION_1_1
+    (void) display;
+    (void) screen;
+    (void) ext;
+#else
+    const char *terminator;
+    const char *loc;
+    const char *extensions;
+
+    if (glXQueryExtensionsString == NULL) {
+        return 0;
+    }
+
+    extensions = glXQueryExtensionsString(display, screen);
+
+    if(extensions == NULL || ext == NULL) {
+        return 0;
+    }
+
+    while(1) {
+        loc = strstr(extensions, ext);
+        if(loc == NULL)
+            break;
+
+        terminator = loc + strlen(ext);
+        if((loc == extensions || *(loc - 1) == ' ') &&
+            (*terminator == ' ' || *terminator == '\0')) {
+            return 1;
+        }
+        extensions = terminator;
+    }
+#endif
+
+    return 0;
+}
+
+static GLADapiproc glad_glx_get_proc_from_userptr(void *userptr, const char* name) {
+    return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name);
+}
+
+static int glad_glx_find_extensions(Display *display, int screen) {
+    (void) glad_glx_has_extension;
+    return 1;
+}
+
+static int glad_glx_find_core_glx(Display **display, int *screen) {
+    int major = 0, minor = 0;
+    if(*display == NULL) {
+#ifdef GLAD_GLX_NO_X11
+        (void) screen;
+        return 0;
+#else
+        *display = XOpenDisplay(0);
+        if (*display == NULL) {
+            return 0;
+        }
+        *screen = XScreenNumberOfScreen(XDefaultScreenOfDisplay(*display));
+#endif
+    }
+    glXQueryVersion(*display, &major, &minor);
+    GLAD_GLX_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
+    GLAD_GLX_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
+    GLAD_GLX_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
+    GLAD_GLX_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1;
+    return GLAD_MAKE_VERSION(major, minor);
+}
+
+int gladLoadGLXUserPtr(Display *display, int screen, GLADuserptrloadfunc load, void *userptr) {
+    int version;
+    glXQueryVersion = (PFNGLXQUERYVERSIONPROC) load(userptr, "glXQueryVersion");
+    if(glXQueryVersion == NULL) return 0;
+    version = glad_glx_find_core_glx(&display, &screen);
+
+    glad_glx_load_GLX_VERSION_1_0(load, userptr);
+    glad_glx_load_GLX_VERSION_1_1(load, userptr);
+    glad_glx_load_GLX_VERSION_1_2(load, userptr);
+    glad_glx_load_GLX_VERSION_1_3(load, userptr);
+
+    if (!glad_glx_find_extensions(display, screen)) return 0;
+
+    return version;
+}
+
+int gladLoadGLX(Display *display, int screen, GLADloadfunc load) {
+    return gladLoadGLXUserPtr(display, screen, glad_glx_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load);
+}
+
+ 
+
+
+#ifdef __cplusplus
+}
+#endif