First set of changes to fix compilation errors and initialise the gles3 renderer for Mac OS X. Still broken at this point.

drivers/gl_context/glad/glad.h

@@ -150,12 +150,26 @@ typedef unsigned int GLhandleARB;
 typedef unsigned short GLhalfARB;
 typedef unsigned short GLhalf;
 typedef GLint GLfixed;
+// Temporary work around for upstream issue: https://github.com/Dav1dde/glad/issues/70
+// Originally fixed by Algorithmus, reapplied in master
+#if defined(__APPLE__)
+typedef long GLintptr;
+typedef long GLsizeiptr;
+#else
 typedef ptrdiff_t GLintptr;
 typedef ptrdiff_t GLsizeiptr;
+#endif
 typedef int64_t GLint64;
 typedef uint64_t GLuint64;
+// Temporary work around for upstream issue: https://github.com/Dav1dde/glad/issues/70
+// Originally fixed by Algorithmus, reapplied in master
+#if defined(__APPLE__)
+typedef long GLintptrARB;
+typedef long GLsizeiptrARB;
+#else
 typedef ptrdiff_t GLintptrARB;
 typedef ptrdiff_t GLsizeiptrARB;
+#endif
 typedef int64_t GLint64EXT;
 typedef uint64_t GLuint64EXT;
 typedef struct __GLsync *GLsync;

drivers/gles3/rasterizer_gles3.cpp

@@ -136,9 +136,13 @@ void RasterizerGLES3::initialize() {
 		ERR_PRINT("Error initializing GLAD");
 	}
 
+#ifdef __APPLE__
+	// FIXME glDebugMessageCallbackARB does not seem to work on Mac OS X and opengl 3, this may be an issue with our opengl canvas..
+#else
 	glEnable(_EXT_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
 	glDebugMessageCallbackARB(_gl_debug_print, NULL);
 	glEnable(_EXT_DEBUG_OUTPUT);
+#endif
 
 #endif
 

platform/osx/os_osx.h

@@ -35,7 +35,7 @@
 #include "drivers/unix/os_unix.h"
 #include "main/input_default.h"
 #include "servers/visual_server.h"
-#include "servers/visual/visual_server_wrap_mt.h"
+// #include "servers/visual/visual_server_wrap_mt.h"
 #include "servers/visual/rasterizer.h"
 #include "servers/physics_server.h"
 #include "servers/audio/audio_server_sw.h"
@@ -58,7 +58,8 @@
 class OS_OSX : public OS_Unix {
 public:
 	bool force_quit;
-	Rasterizer *rasterizer;
+//  rasterizer seems to no longer be given to visual server, its using GLES3 directly?
+//	Rasterizer *rasterizer;
 	VisualServer *visual_server;
 
 	List<String> args;

platform/osx/os_osx.mm

@@ -38,13 +38,14 @@
 #include "servers/visual/visual_server_raster.h"
 //#include "drivers/opengl/rasterizer_gl.h"
 //#include "drivers/gles2/rasterizer_gles2.h"
+#include "drivers/gles3/rasterizer_gles3.h"
 #include "os_osx.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include "print_string.h"
 #include "servers/physics/physics_server_sw.h"
-#include "drivers/gles2/rasterizer_instance_gles2.h"
-#include "servers/visual/visual_server_wrap_mt.h"
+// #include "drivers/gles2/rasterizer_instance_gles2.h"
+// #include "servers/visual/visual_server_wrap_mt.h"
 #include "main/main.h"
 #include "os/keyboard.h"
 #include "dir_access_osx.h"
@@ -1084,15 +1085,19 @@ void OS_OSX::initialize(const VideoMode& p_desired,int p_video_driver,int p_audi
 
 	AudioDriverManagerSW::add_driver(&audio_driver_osx);
 
+	// only opengl support here... 
+	RasterizerGLES3::register_config();
+	RasterizerGLES3::make_current();
 
-	rasterizer = instance_RasterizerGLES2();
+//	rasterizer = instance_RasterizerGLES2();
+//	visual_server = memnew( VisualServerRaster(rasterizer) );
 
-	visual_server = memnew( VisualServerRaster(rasterizer) );
-
-	if (get_render_thread_mode()!=RENDER_THREAD_UNSAFE) {
-
-		visual_server =memnew(VisualServerWrapMT(visual_server,get_render_thread_mode()==RENDER_SEPARATE_THREAD));
-	}
+	visual_server = memnew( VisualServerRaster );
+	// FIXME: Reimplement threaded rendering? Or remove?
+//	if (get_render_thread_mode()!=RENDER_THREAD_UNSAFE) {
+//
+//		visual_server =memnew(VisualServerWrapMT(visual_server,get_render_thread_mode()==RENDER_SEPARATE_THREAD));
+//	}
 	visual_server->init();
 	visual_server->cursor_set_visible(false, 0);
 
@@ -1176,7 +1181,7 @@ void OS_OSX::finalize() {
 
 	visual_server->finish();
 	memdelete(visual_server);
-	memdelete(rasterizer);
+//	memdelete(rasterizer);
 
 	physics_server->finish();
 	memdelete(physics_server);

platform/osx/platform_config.h

@@ -28,6 +28,7 @@
 /*************************************************************************/
 #include <alloca.h>
 
-#define GLES2_INCLUDE_H "GL/glew.h"
-#define GLES3_INCLUDE_H "GL/glew.h"
+//#define GLES2_INCLUDE_H "GL/glew.h"
+//#define GLES3_INCLUDE_H "GL/glew.h"
+#define GLES3_INCLUDE_H "gl_context/glad/glad.h"
 #define PTHREAD_RENAME_SELF

platform/windows/os_windows.cpp

@@ -1087,13 +1087,15 @@ void OS_Windows::initialize(const VideoMode& p_desired,int p_video_driver,int p_
 
 	RasterizerGLES3::make_current();
 #else
- #ifdef DX9_ENABLED
+	// FIXME: Does DX support still work now that rasterizer is no longer used?
+#ifdef DX9_ENABLED
 	rasterizer = memnew( RasterizerDX9(hWnd) );
- #endif
+#endif
 #endif
 
 	visual_server = memnew( VisualServerRaster );
-	//if (get_render_thread_mode()!=RENDER_THREAD_UNSAFE) {
+ 	// FIXME: Reimplement threaded rendering? Or remove?
+//	if (get_render_thread_mode()!=RENDER_THREAD_UNSAFE) {
 //
 //		visual_server =memnew(VisualServerWrapMT(visual_server,get_render_thread_mode()==RENDER_SEPARATE_THREAD));
 //	}

servers/visual/shader_language.h

@@ -151,6 +151,11 @@ public:
 
 	/* COMPILER */
 
+	// lame work around to Apple defining this as a macro in 10.12 SDK
+	#ifdef TYPE_BOOL
+	#undef TYPE_BOOL
+	#endif
+
 	enum DataType {
 		TYPE_VOID,
 		TYPE_BOOL,