From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Tue, 2 Dec 2025 17:09:27 +0000 (+0100)
Subject: nihav_core/scale: fix the case when unpacking with discarding alpha
X-Git-Url: https://git.nihav.org/?a=commitdiff_plain;h=0d5b476d5770147b1b0e93b761be080f501630e3;p=nihav.git

nihav_core/scale: fix the case when unpacking with discarding alpha
---

diff --git a/nihav-core/src/scale/repack.rs b/nihav-core/src/scale/repack.rs
index 506e396..c967bfc 100644
--- a/nihav-core/src/scale/repack.rs
+++ b/nihav-core/src/scale/repack.rs
@@ -155,6 +155,7 @@ impl Kernel for UnpackKernel {
         df.comp_info[..self.ncomps].clone_from_slice(&chr[..self.ncomps]);
         df.components = self.ncomps as u8;
         df.palette = false;
+        df.alpha = in_fmt.fmt.alpha && dest_fmt.fmt.alpha;
         if debug {
             println!(" [intermediate format {}]", df);
         }