[gtk/wip/chergert/glproto] cleanup texture state when freeing

[Christian Hergert <chergert src gnome org>]

commit 1dd9884d7409d9234fa343d9c00d91127087f401
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jan 21 09:56:10 2021 -0800

    cleanup texture state when freeing

 gsk/next/gskgldriver.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gsk/next/gskgldriver.c b/gsk/next/gskgldriver.c
index 409414e14e..6162480830 100644
--- a/gsk/next/gskgldriver.c
+++ b/gsk/next/gskgldriver.c
@@ -77,6 +77,14 @@ gsk_gl_texture_free (gpointer data)
 
   if (texture != NULL)
     {
+      if (texture->user)
+        gdk_texture_clear_render_data (texture->user);
+
+      if (texture->texture_id != 0)
+        glDeleteTextures (1, &texture->texture_id);
+
+      /* TODO: Clear slices */
+
       g_slice_free (GskGLTexture, texture);
     }
 }