include: update GL headers from the registry

Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

include/GLES3/gl32.h

@@ -1,12 +1,12 @@
-#ifndef __gl32_h_
-#define __gl32_h_ 1
+#ifndef __gles2_gl32_h_
+#define __gles2_gl32_h_ 1
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
-** Copyright (c) 2013-2016 The Khronos Group Inc.
+** Copyright (c) 2013-2018 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
@@ -31,9 +31,7 @@ extern "C" {
 ** This header is generated from the Khronos OpenGL / OpenGL ES XML
 ** API Registry. The current version of the Registry, generator scripts
 ** used to make the header, and the header can be found at
-**   http://www.opengl.org/registry/
-**
-** Khronos $Revision$ on $Date$
+**   https://github.com/KhronosGroup/OpenGL-Registry
 */
 
 #include <GLES3/gl3platform.h>
@@ -46,7 +44,7 @@ extern "C" {
 #define GL_GLES_PROTOTYPES 1
 #endif
 
-/* Generated on date 20161024 */
+/* Generated on date 20190611 */
 
 /* Generated C header for:
  * API: gles2
@@ -64,8 +62,8 @@ extern "C" {
 typedef khronos_int8_t GLbyte;
 typedef khronos_float_t GLclampf;
 typedef khronos_int32_t GLfixed;
-typedef short GLshort;
-typedef unsigned short GLushort;
+typedef khronos_int16_t GLshort;
+typedef khronos_uint16_t GLushort;
 typedef void GLvoid;
 typedef struct __GLsync *GLsync;
 typedef khronos_int64_t GLint64;
@@ -672,7 +670,7 @@ GL_APICALL void GL_APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei
 
 #ifndef GL_ES_VERSION_3_0
 #define GL_ES_VERSION_3_0 1
-typedef unsigned short GLhalf;
+typedef khronos_uint16_t GLhalf;
 #define GL_READ_BUFFER                    0x0C02
 #define GL_UNPACK_ROW_LENGTH              0x0CF2
 #define GL_UNPACK_SKIP_ROWS               0x0CF3