[Scummvm-git-logs] scummvm master -> 3f4d9e4a16d70031ee3ca7902c7572ef1e7b3bfe

[tag2015]

This automated email contains information about 1 new commit which have been
pushed to the 'scummvm' repo located at https://github.com/scummvm/scummvm .

Summary:
3f4d9e4a16 AGS: Fix luminance=0 being improperly set to 255


Commit: 3f4d9e4a16d70031ee3ca7902c7572ef1e7b3bfe
    https://github.com/scummvm/scummvm/commit/3f4d9e4a16d70031ee3ca7902c7572ef1e7b3bfe
Author: Walter Agazzi (walter.agazzi at protonmail.com)
Date: 2024-01-31T22:36:30+01:00

Commit Message:
AGS: Fix luminance=0 being improperly set to 255

The sanity check should only be  applied for negative values,
otherwise a fully dark sprite ends up fully lit.
This is clearly noticeable in Unavowed during the
encounters and during the intro.
Fixes #14176

Changed paths:
    engines/ags/engine/ac/draw.cpp


diff --git a/engines/ags/engine/ac/draw.cpp b/engines/ags/engine/ac/draw.cpp
index bfd6208ae24..e63cdb6b0ff 100644
--- a/engines/ags/engine/ac/draw.cpp
+++ b/engines/ags/engine/ac/draw.cpp
@@ -1417,7 +1417,7 @@ void tint_image(Bitmap *ds, Bitmap *srcimg, int red, int grn, int blu, int light
 
 	// Some games have incorrect data that result in a negative luminance.
 	// Do the same as the accelerated drivers that use 255 luminance for that case.
-	if (luminance <= 0)
+	if (luminance < 0)
 		luminance = 255;
 
 	// For performance reasons, we have a separate blender for