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diff --git a/synfig-core/tags/stable/src/synfig/gamma.cpp b/synfig-core/tags/stable/src/synfig/gamma.cpp
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+++ b/synfig-core/tags/stable/src/synfig/gamma.cpp
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+/* === S Y N F I G ========================================================= */
+/*!	\file gamma.cpp
+**	\brief Template File
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+**	This package is free software; you can redistribute it and/or
+**	modify it under the terms of the GNU General Public License as
+**	published by the Free Software Foundation; either version 2 of
+**	the License, or (at your option) any later version.
+**
+**	This package is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**	General Public License for more details.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#	include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#	include <config.h>
+#endif
+
+#include "gamma.h"
+#include <cmath>
+#include <algorithm>
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+//using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+void
+Gamma::set_gamma(float x)
+{
+	gamma_r=gamma_g=gamma_b=x;
+	int i;
+	red_blue_level=1.0f;
+	for(i=0;i<65536;i++)
+	{
+		float f(float(i)/65536.0f);
+		f=pow(f,gamma_r);
+		table_r_U16_to_U8[i]=table_g_U16_to_U8[i]=table_b_U16_to_U8[i]=(unsigned char)(f*(255.0f-(black_level*255))+0.5f + black_level*255.0f);
+	}
+
+	for(i=0;i<256;i++)
+		table_r_U8_to_F32[i]=table_g_U8_to_F32[i]=table_b_U8_to_F32[i]=pow((float(i)/255.0f)*(1.0f-black_level)+black_level,gamma_r);
+}
+
+
+void
+Gamma::refresh_gamma_r()
+{
+	int i;
+//	const float scalar(min(red_blue_level,1.0f));
+	const float scalar(1.0f);
+	for(i=0;i<65536;i++)
+	{
+		float f(float(i)/65536.0f);
+		f=pow(f,gamma_r)*scalar;
+		table_r_U16_to_U8[i]=(unsigned char)(f*(255.0f-(black_level*255))+0.5f + black_level*255.0f);
+	}
+
+	for(i=0;i<256;i++)
+		table_r_U8_to_F32[i]=pow((float(i)/255.0f)*(1.0f-black_level)+black_level,gamma_r)*scalar;
+}
+
+void
+Gamma::refresh_gamma_g()
+{
+	int i;
+//	const float scalar(sqrt(min(red_blue_level,2.0f-red_blue_level)));
+	const float scalar(1.0f);
+	for(i=0;i<65536;i++)
+	{
+		float f(float(i)/65536.0f);
+		f=pow(f,gamma_g)*scalar;
+		table_g_U16_to_U8[i]=(unsigned char)(f*(255.0f-(black_level*255))+0.5f + black_level*255.0f);
+	}
+	for(i=0;i<256;i++)
+		table_g_U8_to_F32[i]=pow((float(i)/255.0f)*(1.0f-black_level)+black_level,gamma_g)*scalar;
+}
+
+void
+Gamma::refresh_gamma_b()
+{
+	int i;
+//	const float scalar(min(2.0f-red_blue_level,1.0f));
+	const float scalar(1.0f);
+	for(i=0;i<65536;i++)
+	{
+		float f(float(i)/65536.0f);
+		f=pow(f,gamma_b)*scalar;
+		table_b_U16_to_U8[i]=(unsigned char)(f*(255.0f-(black_level*255))+0.5f + black_level*255.0f);
+	}
+	for(i=0;i<256;i++)
+		table_b_U8_to_F32[i]=pow((float(i)/255.0f)*(1.0f-black_level)+black_level,gamma_b)*scalar;
+}
+
+void
+Gamma::set_gamma_r(float x)
+{
+	// If the gamma hasn't changed, then don't recompute the tables
+	if(x==gamma_r) return;
+
+	gamma_r=x;
+	refresh_gamma_r();
+}
+
+void
+Gamma::set_gamma_g(float x)
+{
+	// If the gamma hasn't changed, then don't recompute the tables
+	if(x==gamma_g) return;
+
+	gamma_g=x;
+	refresh_gamma_g();
+}
+
+void
+Gamma::set_gamma_b(float x)
+{
+	// If the gamma hasn't changed, then don't recompute the tables
+	if(x==gamma_b) return;
+
+	gamma_b=x;
+	refresh_gamma_b();
+}
+
+void
+Gamma::set_black_level(float x)
+{
+	// If the black_level hasn't changed, then don't recompute the tables
+	if(x==black_level) return;
+
+	black_level=x;
+
+	// Rebuild tables
+	refresh_gamma_r();
+	refresh_gamma_g();
+	refresh_gamma_b();
+}
+
+void
+Gamma::set_red_blue_level(float x)
+{
+	// If the black_level hasn't changed, then don't recompute the tables
+	if(x==red_blue_level) return;
+
+	red_blue_level=x;
+
+	// Rebuild tables
+	refresh_gamma_r();
+	refresh_gamma_g();
+	refresh_gamma_b();
+}
+
+void
+Gamma::set_all(float r, float g, float b, float black, float red_blue)
+{
+	// If nothing has changed, then don't recompute the tables
+	if(gamma_r==r && gamma_g==g && gamma_b==b && black_level==black && red_blue_level==red_blue)
+		return;
+
+	gamma_r=r;
+	gamma_g=g;
+	gamma_b=b;
+	black_level=black;
+	red_blue_level=red_blue;
+
+	// Rebuild tables
+	refresh_gamma_r();
+	refresh_gamma_g();
+	refresh_gamma_b();
+}