[gtk/wip/chergert/glproto] next: apply padding to both sides of packed texture

[Christian Hergert <chergert src gnome org>]

commit 80ba659cd439bb090d464a41b69d0086b04aabed
Author: Christian Hergert <chergert redhat com>
Date:   Mon Feb 22 10:03:05 2021 -0800

    next: apply padding to both sides of packed texture

 gsk/next/gskgltexturelibrary.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/gsk/next/gskgltexturelibrary.c b/gsk/next/gskgltexturelibrary.c
index b6185a0302..17415608be 100644
--- a/gsk/next/gskgltexturelibrary.c
+++ b/gsk/next/gskgltexturelibrary.c
@@ -275,8 +275,8 @@ gsk_gl_texture_library_pack (GskGLTextureLibrary *self,
       int packed_y;
 
       gsk_gl_texture_atlases_pack (self->driver,
-                                   width + padding,
-                                   height + padding,
+                                   padding + width + padding,
+                                   padding + height + padding,
                                    &atlas,
                                    &packed_x,
                                    &packed_y);
@@ -293,7 +293,9 @@ gsk_gl_texture_library_pack (GskGLTextureLibrary *self,
     }
   else
     {
-      GskGLTexture *texture = gsk_gl_texture_library_pack_one (self, width + 2, height + 2);
+      GskGLTexture *texture = gsk_gl_texture_library_pack_one (self,
+                                                               padding + width + padding,
+                                                               padding + height + padding);
 
       entry->texture = texture;
       entry->is_atlased = FALSE;