From: Øyvind Kolås <pippin@gimp.org>
Date: Wed, 15 Feb 2023 16:21:56 +0000 (+0100)
Subject: babl: LUT, only exclude associated alpha when copied
X-Git-Tag: archive/raspbian/1%0.1.106-3+rpi1^2~15^2^2~24
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=920aee0b73805cf8f3acb57ff7975c07b004452f;p=babl.git

babl: LUT, only exclude associated alpha when copied
---

diff --git a/babl/babl-fish-path.c b/babl/babl-fish-path.c
index c1e59a8..bda0c7b 100644
--- a/babl/babl-fish-path.c
+++ b/babl/babl-fish-path.c
@@ -962,26 +962,30 @@ _babl_fish_prepare_bpp (Babl *babl)
                                                   babl_format_get_n_components (babl_source) - 1);
   const Babl *dest_type   = babl_format_get_type (babl_dest,
                                                   babl_format_get_n_components (babl_dest) - 1);
+
+  int dest_not_associated = ((babl->conversion.destination->format.model->flags &
+          BABL_MODEL_FLAG_ASSOCIATED)==0);
+
   if (
       (babl->conversion.source->format.type[0]->bits < 32)       
 
-      && ((babl->conversion.destination->format.model->flags &
-          BABL_MODEL_FLAG_ASSOCIATED)==0)
-
       && (  (   source_bpp == 2
              && dest_bpp   == 16)
 
           ||(   source_bpp == 4
              && dest_bpp   == 16
-             && dest_type  == babl_type_from_id (BABL_FLOAT))
+             && dest_type  == babl_type_from_id (BABL_FLOAT)
+             && dest_not_associated)
 
           ||(   source_bpp == 4
              && dest_bpp   == 4
-             && dest_type  ==source_type)
+             && dest_type  == source_type
+             && dest_not_associated)
 
           ||(   source_bpp == 4
              && dest_bpp   == 8
-             && dest_type  == babl_type_from_id (BABL_U16))
+             && dest_type  == babl_type_from_id (BABL_U16)
+             && dest_not_associated)
 
           ||(   source_bpp == 3
              && dest_bpp   == 4)