[gtk/wip/otte/center-center-center: 2/5] gl: Call make_current() before doing any GL work

[Benjamin Otte <otte src gnome org>]

commit b912e84df7ef7c0a4c298ea9f712cc5bf5f4aa82
Author: Benjamin Otte <otte redhat com>
Date:   Fri Oct 22 17:37:34 2021 +0200

    gl: Call make_current() before doing any GL work
    
    But don't call it too early, we only want to call it once we have
    prepared the target.
    
    This way, we guarantee that a GL context is always available and that it
    is bound to the correct target.

 gsk/gl/gskglrenderer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/gsk/gl/gskglrenderer.c b/gsk/gl/gskglrenderer.c
index 0b1e9eddda..c11715ae9e 100644
--- a/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@ -203,11 +203,12 @@ gsk_gl_renderer_render (GskRenderer          *renderer,
   viewport.size.width = gdk_surface_get_width (surface) * scale_factor;
   viewport.size.height = gdk_surface_get_height (surface) * scale_factor;
 
-  gdk_gl_context_make_current (self->context);
   gdk_draw_context_begin_frame_full (GDK_DRAW_CONTEXT (self->context),
                                      gsk_render_node_prefers_high_depth (root),
                                      update_area);
 
+  gdk_gl_context_make_current (self->context);
+
   /* Must be called *AFTER* gdk_draw_context_begin_frame() */
   render_region = get_render_region (surface, self->context);
 
@@ -221,7 +222,6 @@ gsk_gl_renderer_render (GskRenderer          *renderer,
   gsk_gl_driver_end_frame (self->driver);
   gsk_gl_render_job_free (job);
 
-  gdk_gl_context_make_current (self->context);
   gdk_draw_context_end_frame (GDK_DRAW_CONTEXT (self->context));
 
   gsk_gl_driver_after_frame (self->driver);
@@ -251,6 +251,8 @@ gsk_gl_renderer_render_texture (GskRenderer           *renderer,
 
   format = gsk_render_node_prefers_high_depth (root) ? GL_RGBA32F : GL_RGBA8;
 
+  gdk_gl_context_make_current (self->context);
+
   if (gsk_gl_driver_create_render_target (self->driver,
                                           width, height,
                                           format,