From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 15 Aug 2015 21:02:03 +0000 (-0400)
Subject: Remove laze evaluation for SetImageAlphaChannel() alpha traits
X-Git-Tag: 7.0.1-0~690
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=94beb9efd871cd08ab2e3e74f2cfd598efbdff58;p=imagemagick

Remove laze evaluation for SetImageAlphaChannel() alpha traits
---

diff --git a/MagickCore/channel.c b/MagickCore/channel.c
index 34ce618fa..c7f7102a4 100644
--- a/MagickCore/channel.c
+++ b/MagickCore/channel.c
@@ -1065,6 +1065,7 @@ MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,
       /*
         Copy pixel intensity to the alpha channel.
       */
+      image->alpha_trait=UpdatePixelTrait;
       status=CompositeImage(image,image,IntensityCompositeOp,MagickTrue,0,0,
         exception);
       if (alpha_type == ShapeAlphaChannel)
@@ -1234,5 +1235,6 @@ MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,
   }
   if (status == MagickFalse)
     return(status);
+  (void) SetPixelChannelMask(image,image->channel_mask);
   return(SyncImagePixelCache(image,exception));
 }