From 834d30041efc9cc4d962ac6f9b28198dca29b311 Mon Sep 17 00:00:00 2001
From: walter <walter.beller.morales@gmail.com>
Date: Tue, 16 May 2023 00:36:45 -0400
Subject: [PATCH] add support for image coalesce

---
 src/wand/magick.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/wand/magick.rs b/src/wand/magick.rs
index ba96095..c217865 100644
--- a/src/wand/magick.rs
+++ b/src/wand/magick.rs
@@ -262,6 +262,18 @@ impl MagickWand {
         }
     }
 
+    /// Rebuilds image sequence with each frame size the same as first frame, and composites each frame atop of previous.
+    /// Only affects GIF, and other formats with multiple pages/layers.
+    pub fn coalesce(&mut self) -> Result<()> {
+        let result = unsafe { bindings::MagickCoalesceImages(self.wand) };
+        if result.is_null() {
+            Err(MagickError("failed to coalesce images"))
+        } else {
+            self.wand = result;
+            Ok(())
+        }
+    }
+
     // Replaces colors in the image from a color lookup table.
     pub fn clut_image(
         &self,