From: Jehan <jehan@girinstud.io>
Date: Tue, 14 Feb 2023 10:21:18 +0000 (+0100)
Subject: babl: LUT from 3bpp to 4bpp must add a fully opaque alpha.
X-Git-Tag: archive/raspbian/1%0.1.106-3+rpi1^2~15^2^2~27
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=7b9764a7d4fcc8c4caeab48c2ce5d3f78a915991;p=babl.git

babl: LUT from 3bpp to 4bpp must add a fully opaque alpha.

For instance, conversion from "RGB u8" to "RGBA u8". With previous code,
the resulting color was right but the pixel was fully transparent.
---

diff --git a/babl/babl-fish-path.c b/babl/babl-fish-path.c
index 26072d5..ed89590 100644
--- a/babl/babl-fish-path.c
+++ b/babl/babl-fish-path.c
@@ -250,6 +250,7 @@ static inline int _do_lut (uint32_t *lut,
           {
              uint32_t col = src[0]*256*256+src[1]*256+src[2];
              *dst = lut[col];
+             *dst |= 0xff000000;
              dst++;
              src+=3;
           }