Cleanup old references to GLES2 renderer

There are still some left in the Android Java code, even stuff to swap between
GLES1 and GLES2 support from early Godot days... would be good to see some cleanup
there too one day.

The "graphics/api" option for Android exports is removed, as only GLES 3.0 is supported.
It can be readded when GLES 2.0 support comes back. Fixes #13004.

19 files changed, 30 insertions, 70 deletions

diff --git a/platform/android/detect.py b/platform/android/detect.py
index a3ada5cf51..bc67f6e6dc 100644
--- a/platform/android/detect.py
+++ b/platform/android/detect.py
@@ -205,7 +205,7 @@ def configure(env):
         env.Append(CPPFLAGS=["-isystem", lib_sysroot + "/usr/include"])
 
     env.Append(CPPFLAGS='-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -fvisibility=hidden -fno-strict-aliasing'.split())
-    env.Append(CPPFLAGS='-DNO_STATVFS -DGLES2_ENABLED'.split())
+    env.Append(CPPFLAGS='-DNO_STATVFS -DGLES_ENABLED'.split())
 
     env['neon_enabled'] = False
     if env['android_arch'] == 'x86':
diff --git a/platform/android/export/export.cpp b/platform/android/export/export.cpp
index 79be1501a7..9945dc599b 100644
--- a/platform/android/export/export.cpp
+++ b/platform/android/export/export.cpp
@@ -945,16 +945,17 @@ public:
 public:
 	virtual void get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) {
 
-		int api = p_preset->get("graphics/api");
+		// Reenable when a GLES 2.0 backend is readded
+		/*int api = p_preset->get("graphics/api");
 		if (api == 0)
 			r_features->push_back("etc");
-		else
-			r_features->push_back("etc2");
+		else*/
+		r_features->push_back("etc2");
 	}
 
 	virtual void get_export_options(List<ExportOption> *r_options) {
 
-		r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "graphics/api", PROPERTY_HINT_ENUM, "OpenGL ES 2.0,OpenGL ES 3.0"), 1));
+		/*r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "graphics/api", PROPERTY_HINT_ENUM, "OpenGL ES 2.0,OpenGL ES 3.0"), 1));*/
 		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "graphics/32_bits_framebuffer"), true));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "one_click_deploy/clear_previous_install"), true));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_package/debug", PROPERTY_HINT_GLOBAL_FILE, "apk"), ""));
diff --git a/platform/android/globals/global_defaults.cpp b/platform/android/globals/global_defaults.cpp
index c73b578154..0e1c17e9c8 100644
--- a/platform/android/globals/global_defaults.cpp
+++ b/platform/android/globals/global_defaults.cpp
@@ -31,12 +31,4 @@
 #include "project_settings.h"
 
 void register_android_global_defaults() {
-
-	/*	GLOBAL_DEF("rasterizer.Android/use_fragment_lighting",false);
-	GLOBAL_DEF("rasterizer.Android/fp16_framebuffer",false);
-	GLOBAL_DEF("display.Android/driver","GLES2");
-	//GLOBAL_DEF("rasterizer.Android/trilinear_mipmap_filter",false);
-
-	ProjectSettings::get_singleton()->set_custom_property_info("display.Android/driver",PropertyInfo(Variant::STRING,"display.Android/driver",PROPERTY_HINT_ENUM,"GLES2"));
-	*/
 }
diff --git a/platform/android/godot_android.cpp b/platform/android/godot_android.cpp
index 9d056bca7c..f9bcbadc24 100644
--- a/platform/android/godot_android.cpp
+++ b/platform/android/godot_android.cpp
@@ -29,24 +29,23 @@
 /*************************************************************************/
 #ifdef ANDROID_NATIVE_ACTIVITY
 
-#include <errno.h>
-#include <jni.h>
-
-#include <EGL/egl.h>
-#include <GLES2/gl2.h>
-
 #include "engine.h"
 #include "file_access_android.h"
 #include "main/main.h"
 #include "os_android.h"
 #include "project_settings.h"
+
+#include <EGL/egl.h>
 #include <android/log.h>
 #include <android/sensor.h>
 #include <android/window.h>
 #include <android_native_app_glue.h>
+#include <errno.h>
+#include <jni.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+
 #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "godot", __VA_ARGS__))
 #define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "godot", __VA_ARGS__))
 
diff --git a/platform/haiku/detect.py b/platform/haiku/detect.py
index 50f9783dd2..7c62654ef6 100644
--- a/platform/haiku/detect.py
+++ b/platform/haiku/detect.py
@@ -67,7 +67,7 @@ def configure(env):
     ## Flags
 
     env.Append(CPPPATH=['#platform/haiku'])
-    env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES2_ENABLED', '-DGLES_OVER_GL'])
+    env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES_ENABLED', '-DGLES_OVER_GL'])
     env.Append(CPPFLAGS=['-DMEDIA_KIT_ENABLED'])
     # env.Append(CCFLAGS=['-DFREETYPE_ENABLED'])
     env.Append(CPPFLAGS=['-DPTHREAD_NO_RENAME'])  # TODO: enable when we have pthread_setname_np
diff --git a/platform/haiku/os_haiku.cpp b/platform/haiku/os_haiku.cpp
index 0c34e39655..3af111faf3 100644
--- a/platform/haiku/os_haiku.cpp
+++ b/platform/haiku/os_haiku.cpp
@@ -76,7 +76,7 @@ int OS_Haiku::get_video_driver_count() const {
 }
 
 const char *OS_Haiku::get_video_driver_name(int p_driver) const {
-	return "GLES2";
+	return "GLES3";
 }
 
 void OS_Haiku::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {
@@ -106,7 +106,9 @@ void OS_Haiku::initialize(const VideoMode &p_desired, int p_video_driver, int p_
 	context_gl->initialize();
 	context_gl->make_current();
 
-	rasterizer = memnew(RasterizerGLES2);
+	/* Port to GLES 3 rasterizer */
+	//rasterizer = memnew(RasterizerGLES2);
+
 #endif
 
 	visual_server = memnew(VisualServerRaster(rasterizer));
diff --git a/platform/iphone/detect.py b/platform/iphone/detect.py
index d426b478bf..4ea358f871 100644
--- a/platform/iphone/detect.py
+++ b/platform/iphone/detect.py
@@ -163,7 +163,7 @@ def configure(env):
     env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
 
     env.Append(CPPPATH=['#platform/iphone'])
-    env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES2_ENABLED', '-DMPC_FIXED_POINT', '-DCOREAUDIO_ENABLED'])
+    env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DMPC_FIXED_POINT', '-DCOREAUDIO_ENABLED'])
 
     # TODO: Move that to opus module's config
     if 'module_opus_enabled' in env and env['module_opus_enabled']:
diff --git a/platform/iphone/globals/global_defaults.cpp b/platform/iphone/globals/global_defaults.cpp
index 4bdc716d6e..b81e6def3b 100644
--- a/platform/iphone/globals/global_defaults.cpp
+++ b/platform/iphone/globals/global_defaults.cpp
@@ -31,11 +31,4 @@
 #include "project_settings.h"
 
 void register_iphone_global_defaults() {
-
-	/*GLOBAL_DEF("rasterizer.iOS/use_fragment_lighting",false);
-	GLOBAL_DEF("rasterizer.iOS/fp16_framebuffer",false);
-	GLOBAL_DEF("display.iOS/driver","GLES2");
-	ProjectSettings::get_singleton()->set_custom_property_info("display.iOS/driver",PropertyInfo(Variant::STRING,"display.iOS/driver",PROPERTY_HINT_ENUM,"GLES1,GLES2"));
-	GLOBAL_DEF("display.iOS/use_cadisplaylink",true);
-	*/
 }
diff --git a/platform/iphone/os_iphone.cpp b/platform/iphone/os_iphone.cpp
index d0865a35b9..62b7d93968 100644
--- a/platform/iphone/os_iphone.cpp
+++ b/platform/iphone/os_iphone.cpp
@@ -54,7 +54,7 @@ int OSIPhone::get_video_driver_count() const {
 
 const char *OSIPhone::get_video_driver_name(int p_driver) const {
 
-	return "GLES2";
+	return "GLES3";
 };
 
 OSIPhone *OSIPhone::get_singleton() {
diff --git a/platform/iphone/platform_config.h b/platform/iphone/platform_config.h
index 54de66082e..7ff6e7a9a9 100644
--- a/platform/iphone/platform_config.h
+++ b/platform/iphone/platform_config.h
@@ -28,7 +28,7 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 #include <alloca.h>
-// #define GLES2_INCLUDE_H <ES2/gl.h>
+
 #define GLES3_INCLUDE_H <ES3/gl.h>
 
 #define PLATFORM_REFCOUNT
diff --git a/platform/osx/detect.py b/platform/osx/detect.py
index c24bd98bf6..ff7cf2ad2f 100644
--- a/platform/osx/detect.py
+++ b/platform/osx/detect.py
@@ -110,7 +110,7 @@ def configure(env):
     ## Flags
 
     env.Append(CPPPATH=['#platform/osx'])
-    env.Append(CPPFLAGS=['-DOSX_ENABLED', '-DUNIX_ENABLED', '-DGLES2_ENABLED', '-DAPPLE_STYLE_KEYS', '-DCOREAUDIO_ENABLED'])
+    env.Append(CPPFLAGS=['-DOSX_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DAPPLE_STYLE_KEYS', '-DCOREAUDIO_ENABLED'])
     env.Append(LINKFLAGS=['-framework', 'Cocoa', '-framework', 'Carbon', '-framework', 'OpenGL', '-framework', 'AGL', '-framework', 'AudioUnit', '-framework', 'CoreAudio', '-lz', '-framework', 'IOKit', '-framework', 'ForceFeedback'])
     env.Append(LIBS=['pthread'])
 
diff --git a/platform/osx/os_osx.mm b/platform/osx/os_osx.mm
index 2e0e2620be..8703b8ff16 100644
--- a/platform/osx/os_osx.mm
+++ b/platform/osx/os_osx.mm
@@ -896,7 +896,7 @@ int OS_OSX::get_video_driver_count() const {
 
 const char *OS_OSX::get_video_driver_name(int p_driver) const {
 
-	return "GLES2";
+	return "GLES3";
 }
 
 void OS_OSX::initialize_core() {
@@ -1066,8 +1066,6 @@ void OS_OSX::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 		zoomed = true;
 
 	/*** END OSX INITIALIZATION ***/
-	/*** END OSX INITIALIZATION ***/
-	/*** END OSX INITIALIZATION ***/
 
 	bool use_gl2 = p_video_driver != 1;
 
@@ -1077,16 +1075,12 @@ void OS_OSX::initialize(const VideoMode &p_desired, int p_video_driver, int p_au
 	RasterizerGLES3::register_config();
 	RasterizerGLES3::make_current();
 
-	//rasterizer = instance_RasterizerGLES2();
-	//visual_server = memnew( VisualServerRaster(rasterizer) );
-
 	visual_server = memnew(VisualServerRaster);
 	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);
 
 	AudioDriverManager::initialize(p_audio_driver);
 
diff --git a/platform/uwp/app.h b/platform/uwp/app.h
index e079fa9c9d..b812512a98 100644
--- a/platform/uwp/app.h
+++ b/platform/uwp/app.h
@@ -33,6 +33,7 @@
 
 #include <wrl.h>
 
+// ANGLE doesn't provide a specific lib for GLES3, so we keep using GLES2
 #include "GLES2/gl2.h"
 #include "os_uwp.h"
 
diff --git a/platform/uwp/detect.py b/platform/uwp/detect.py
index 434c597449..7cc8afff06 100644
--- a/platform/uwp/detect.py
+++ b/platform/uwp/detect.py
@@ -136,7 +136,7 @@ def configure(env):
 
     env.Append(CPPPATH=['#platform/uwp', '#drivers/windows'])
     env.Append(CCFLAGS=['/DUWP_ENABLED', '/DWINDOWS_ENABLED', '/DTYPED_METHOD_BIND'])
-    env.Append(CCFLAGS=['/DGLES2_ENABLED', '/DGL_GLEXT_PROTOTYPES', '/DEGL_EGLEXT_PROTOTYPES', '/DANGLE_ENABLED'])
+    env.Append(CCFLAGS=['/DGLES_ENABLED', '/DGL_GLEXT_PROTOTYPES', '/DEGL_EGLEXT_PROTOTYPES', '/DANGLE_ENABLED'])
     winver = "0x0602" # Windows 8 is the minimum target for UWP build
     env.Append(CCFLAGS=['/DWINVER=%s' % winver, '/D_WIN32_WINNT=%s' % winver])
 
diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index acb0ba4bca..978a56f64f 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -69,7 +69,7 @@ int OSUWP::get_video_driver_count() const {
 }
 const char *OSUWP::get_video_driver_name(int p_driver) const {
 
-	return "GLES2";
+	return "GLES3";
 }
 
 Size2 OSUWP::get_window_size() const {
diff --git a/platform/windows/context_gl_win.cpp b/platform/windows/context_gl_win.cpp
index 8571f0dc65..81aa18dd23 100644
--- a/platform/windows/context_gl_win.cpp
+++ b/platform/windows/context_gl_win.cpp
@@ -27,25 +27,12 @@
 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
-#if defined(OPENGL_ENABLED) || defined(GLES2_ENABLED)
-
-//
-// C++ Implementation: context_gl_x11
-//
-// Description:
-//
-//
+#if defined(OPENGL_ENABLED) || defined(GLES_ENABLED)
+
 // Author: Juan Linietsky <reduzio@gmail.com>, (C) 2008
-//
-// Copyright: See COPYING file that comes with this distribution
-//
-//
 
 #include "context_gl_win.h"
 
-//#include "drivers/opengl/glwrapper.h"
-//#include "ctxgl_procaddr.h"
-
 #define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
 #define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
 #define WGL_CONTEXT_FLAGS_ARB 0x2094
diff --git a/platform/windows/context_gl_win.h b/platform/windows/context_gl_win.h
index 0059cbc311..5a280b0d08 100644
--- a/platform/windows/context_gl_win.h
+++ b/platform/windows/context_gl_win.h
@@ -27,18 +27,9 @@
 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
-#if defined(OPENGL_ENABLED) || defined(GLES2_ENABLED)
-//
-// C++ Interface: context_gl_x11
-//
-// Description:
-//
-//
+#if defined(OPENGL_ENABLED) || defined(GLES_ENABLED)
+
 // Author: Juan Linietsky <reduzio@gmail.com>, (C) 2008
-//
-// Copyright: See COPYING file that comes with this distribution
-//
-//
 
 #ifndef CONTEXT_GL_WIN_H
 #define CONTEXT_GL_WIN_H
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index 0f62dbb9e8..97a3198d10 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -143,7 +143,7 @@ int OS_Windows::get_video_driver_count() const {
 }
 const char *OS_Windows::get_video_driver_name(int p_driver) const {
 
-	return "GLES2";
+	return "GLES3";
 }
 
 int OS_Windows::get_audio_driver_count() const {
diff --git a/platform/x11/detect.py b/platform/x11/detect.py
index 6bd0ac8317..3d07851c4f 100644
--- a/platform/x11/detect.py
+++ b/platform/x11/detect.py
@@ -236,7 +236,7 @@ def configure(env):
         env.ParseConfig('pkg-config zlib --cflags --libs')
 
     env.Append(CPPPATH=['#platform/x11'])
-    env.Append(CPPFLAGS=['-DX11_ENABLED', '-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES2_ENABLED', '-DGLES_OVER_GL'])
+    env.Append(CPPFLAGS=['-DX11_ENABLED', '-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES_ENABLED', '-DGLES_OVER_GL'])
     env.Append(LIBS=['GL', 'pthread'])
 
     if (platform.system() == "Linux"):