From 1d41d55f8cd02fbb03d46d56f45f6c77b87842f3 Mon Sep 17 00:00:00 2001
From: Matt Arnold <matt@boppl.me>
Date: Mon, 8 May 2017 21:33:18 +0100
Subject: [PATCH] Added command line options to disable OptimizeTransLayer
 and/or OptimizePlusLayer

---
 lib/screengif.rb         | 13 +++++++++----
 lib/screengif/options.rb | 10 ++++++++++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/lib/screengif.rb b/lib/screengif.rb
index 8f9d3c3..0c59af1 100755
--- a/lib/screengif.rb
+++ b/lib/screengif.rb
@@ -108,10 +108,15 @@ def self.start
     canvas = canvas.quantize(256, RGBColorspace, NoDitherMethod)
     $stderr.puts "Quantization completed." if $verbose
 
-    $stderr.puts "Beginning rmagick OptimizePlusLayer..." if $verbose
-    canvas = canvas.optimize_layers(OptimizePlusLayer)
-    $stderr.puts "Beginning rmagick OptimizeTransLayer..." if $verbose
-    canvas = canvas.optimize_layers(OptimizeTransLayer)
+    unless options.no_optimize_pluslayer
+      $stderr.puts "Beginning rmagick OptimizePlusLayer..." if $verbose
+      canvas = canvas.optimize_layers(OptimizePlusLayer)
+    end
+
+    unless options.no_optimize_translayer
+      $stderr.puts "Beginning rmagick OptimizeTransLayer..." if $verbose
+      canvas = canvas.optimize_layers(OptimizeTransLayer)
+    end
 
     $stderr.puts "Rmagick processing completed. Outputting results..." if $verbose
     output = canvas.to_blob 
diff --git a/lib/screengif/options.rb b/lib/screengif/options.rb
index 487836c..9b47327 100644
--- a/lib/screengif/options.rb
+++ b/lib/screengif/options.rb
@@ -20,6 +20,8 @@ def self.parse(args)
       options.output_file = nil
       options.no_gifsicle = false
       options.fuzz = 5
+      options.no_optimize_translayer = false
+      options.no_optimize_pluslayer = false
 
       # options.ffmpeg_inputfile = nil
 
@@ -93,6 +95,14 @@ def self.parse(args)
           options.no_gifsicle = true
         end
 
+        opts.on("--no-optimize-translayer", "Skip Optimize TransLayer.") do
+          options.no_optimize_translayer = true
+        end
+
+        opts.on("--no-optimize-pluslayer", "Skip Optimize PlusLayer.") do
+          options.no_optimize_pluslayer = true
+        end
+
         # Boilerplate
         opts.on_tail("-h", "--help", "Show this message") do
           puts opts