[gegl] bin: add commmand to toggle mipmap rendering

[Øyvind "pippin" Kolås <ok src gnome org>]

commit d8ba8a467c35a5ae9434ebb8262cd7c79ed8b7ca
Author: Øyvind Kolås <pippin gimp org>
Date:   Sun Jan 13 23:23:21 2019 +0100

    bin: add commmand to toggle mipmap rendering

 bin/ui.c | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)
---
diff --git a/bin/ui.c b/bin/ui.c
index 8db072339..f07547038 100644
--- a/bin/ui.c
+++ b/bin/ui.c
@@ -482,6 +482,11 @@ static gboolean renderer_task (gpointer data)
   static gdouble progress = 0.0;
   void *old_processor = o->processor;
   GeglBuffer *old_buffer = o->processor_buffer;
+
+  if (renderer == GEGL_RENDERER_BLIT||
+      renderer == GEGL_RENDERER_BLIT_MIPMAP)
+    o->renderer_state = 4;
+
   switch (o->renderer_state)
   {
     case 0:
@@ -1008,6 +1013,38 @@ int cmd_dir_pgdn (COMMAND_ARGS) /* "dir-pgdn", 0, "", ""*/
   return 0;
 }
 
+
+  int cmd_mipmap (COMMAND_ARGS);
+int cmd_mipmap (COMMAND_ARGS) /* "mipmap", -1, "", ""*/
+{
+  gboolean curval;
+  State *o = hack_state;
+  if (argv[1])
+  {
+    if (!strcmp (argv[1], "on")||
+        !strcmp (argv[1], "true")||
+        !strcmp (argv[1], "1"))
+    {
+      g_object_set (gegl_config(), "mipmap-rendering", TRUE, NULL);
+      renderer = GEGL_RENDERER_BLIT_MIPMAP;
+    }
+    else
+    {
+      g_object_set (gegl_config(), "mipmap-rendering", FALSE, NULL);
+      renderer = GEGL_RENDERER_IDLE;
+    }
+  }
+  else
+  {
+    //printf ("mipmap rendering is %s\n", curval?"on":"off");
+  }
+  g_object_get (gegl_config(), "mipmap-rendering", &curval, NULL);
+  printf ("mipmap rendering is %s\n", curval?"on":"off");
+  renderer_dirty ++;
+  mrg_queue_draw (o->mrg, NULL);
+  return 0;
+}
+
   int cmd_dir_pgup (COMMAND_ARGS);
 int cmd_dir_pgup (COMMAND_ARGS) /* "dir-pgup", 0, "", ""*/
 {
@@ -2630,7 +2667,7 @@ static void load_path (State *o)
   o->u = 0;
   o->v = 0;
   o->is_video = 0;
-  o->frame_no = 0;
+  o->frame_no = -1;
   o->prev_frame_played = 0;
 
   if (g_str_has_suffix (path, ".gif"))