[retro-gtk] gl-renderer: Fix context initialization with GLES

[Adrien Plazas <aplazas src gnome org>]

commit 54f7627a5cc20a254d3379b739bd426f5534d38d
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Fri Mar 19 00:31:38 2021 +0500

    gl-renderer: Fix context initialization with GLES
    
    Also stop using extensions.
    
    See https://www.khronos.org/registry/EGL/sdk/docs/man/html/eglCreateContext.xhtml

 retro-runner/retro-gl-renderer.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)
---
diff --git a/retro-runner/retro-gl-renderer.c b/retro-runner/retro-gl-renderer.c
index 1bc12c1..f096606 100644
--- a/retro-runner/retro-gl-renderer.c
+++ b/retro-runner/retro-gl-renderer.c
@@ -336,18 +336,22 @@ retro_gl_renderer_new (RetroCore             *core,
   check_egl_errors ("eglBindAPI");
 
   i = 0;
+
   context_attribs[i++] = EGL_CONTEXT_MAJOR_VERSION;
   context_attribs[i++] = major_version;
-  context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION;
-  context_attribs[i++] = minor_version;
-  context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK;
-  context_attribs[i++] = use_compat_profile ?
-    EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT :
-    EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT;
+
+  if (!is_opengl_es) {
+    context_attribs[i++] = EGL_CONTEXT_MINOR_VERSION;
+    context_attribs[i++] = minor_version;
+    context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK;
+    context_attribs[i++] = use_compat_profile ?
+      EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT :
+      EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT;
+  }
 
   if (callback->debug_context) {
-    context_attribs[i++] = EGL_CONTEXT_FLAGS_KHR;
-    context_attribs[i++] = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
+    context_attribs[i++] = EGL_CONTEXT_OPENGL_DEBUG;
+    context_attribs[i++] = EGL_TRUE;
   }
 
   context_attribs[i++] = EGL_NONE;