[gtk/wip/chergert/glproto: 613/920] ensure we've loaded max texture size

[Christian Hergert <chergert src gnome org>]

commit c16ff6220369c64353fab12ab10998c766e32f6c
Author: Christian Hergert <chergert redhat com>
Date:   Wed Dec 30 16:32:30 2020 -0800

    ensure we've loaded max texture size

 gsk/next/gskglcommandqueue.c | 5 ++++-
 gsk/next/gskglrenderer.c     | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/gsk/next/gskglcommandqueue.c b/gsk/next/gskglcommandqueue.c
index b06c832889..57bc7fe3b9 100644
--- a/gsk/next/gskglcommandqueue.c
+++ b/gsk/next/gskglcommandqueue.c
@@ -1156,10 +1156,13 @@ gsk_gl_command_queue_create_texture (GskGLCommandQueue *self,
                                      int                min_filter,
                                      int                mag_filter)
 {
-  GLuint texture_id;
+  GLuint texture_id = 0;
 
   g_return_val_if_fail (GSK_IS_GL_COMMAND_QUEUE (self), -1);
 
+  if G_UNLIKELY (self->max_texture_size == -1)
+    glGetIntegerv (GL_MAX_TEXTURE_SIZE, &self->max_texture_size);
+
   if (width > self->max_texture_size || height > self->max_texture_size)
     return -1;
 
diff --git a/gsk/next/gskglrenderer.c b/gsk/next/gskglrenderer.c
index e9a36f376a..73827d6031 100644
--- a/gsk/next/gskglrenderer.c
+++ b/gsk/next/gskglrenderer.c
@@ -259,6 +259,8 @@ gsk_gl_renderer_render_texture (GskRenderer           *renderer,
   width = ceilf (viewport->size.width);
   height = ceilf (viewport->size.height);
 
+  gdk_gl_context_make_current (context);
+
   if (!gsk_next_driver_create_render_target (self->driver,
                                              width,
                                              height,