From 575c9ae6fb3d8c310452d7e8951ea9874ef05d98 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Thu, 7 Apr 2022 14:32:40 +0200
Subject: [PATCH] Tech ENABLE_OPENGL_ES - Disabled 'Show wireframe' option in
 gizmo simplify - glPolygonMode() is not supported by OpenGL ES

---
 src/slic3r/GUI/Gizmos/GLGizmoSimplify.cpp | 6 ++++++
 src/slic3r/GUI/OpenGLManager.hpp          | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Gizmos/GLGizmoSimplify.cpp b/src/slic3r/GUI/Gizmos/GLGizmoSimplify.cpp
index 3eb58479dc..c34678c5d2 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoSimplify.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoSimplify.cpp
@@ -354,7 +354,9 @@ void GLGizmoSimplify::on_render_input_window(float x, float y, float bottom_limi
     ImGui::Text(_u8L("%d triangles").c_str(), m_configuration.wanted_count);
     m_imgui->disabled_end(); // use_count
 
+#if !ENABLE_OPENGL_ES
     ImGui::Checkbox(_u8L("Show wireframe").c_str(), &m_show_wireframe);
+#endif // !ENABLE_OPENGL_ES
 
     m_imgui->disabled_begin(is_cancelling);
     if (m_imgui->button(_L("Close"))) {
@@ -773,9 +775,13 @@ void GLGizmoSimplify::on_render()
 #if !ENABLE_GL_CORE_PROFILE
             glsafe(::glLineWidth(1.0f));
 #endif // !ENABLE_GL_CORE_PROFILE
+#if !ENABLE_OPENGL_ES
             glsafe(::glPolygonMode(GL_FRONT_AND_BACK, GL_LINE));
+#endif // !ENABLE_OPENGL_ES
             glmodel.render();
+#if !ENABLE_OPENGL_ES
             glsafe(::glPolygonMode(GL_FRONT_AND_BACK, GL_FILL));
+#endif // !ENABLE_OPENGL_ES
 #if ENABLE_LEGACY_OPENGL_REMOVAL
             glmodel.set_color(color);
 #endif // ENABLE_LEGACY_OPENGL_REMOVAL
diff --git a/src/slic3r/GUI/OpenGLManager.hpp b/src/slic3r/GUI/OpenGLManager.hpp
index 0793d67a0b..e92ca8f99d 100644
--- a/src/slic3r/GUI/OpenGLManager.hpp
+++ b/src/slic3r/GUI/OpenGLManager.hpp
@@ -45,7 +45,7 @@ public:
 
         bool is_core_profile() const;
         bool is_mesa() const;
-        bool is_es() {
+        bool is_es() const {
             return
 #if ENABLE_OPENGL_ES
                 true;