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diff --git a/common/rendermode.h b/common/rendermode.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 program 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.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef COMMON_RENDERMODE_H
+#define COMMON_RENDERMODE_H
+
+#include "common/scummsys.h"
+
+namespace Common {
+
+class String;
+
+/**
+ * List of render modes. It specifies which original graphics mode
+ * to use. Some targets used postprocessing dithering routines for
+ * reducing color depth of final image which let it to be rendered on
+ * such low-level adapters as CGA or Hercules.
+ */
+enum RenderMode {
+	kRenderDefault = 0,
+	kRenderVGA = 1,
+	kRenderEGA = 2,
+	kRenderCGA = 3,
+	kRenderHercG = 4,
+	kRenderHercA = 5,
+	kRenderAmiga = 6,
+	kRenderFMTowns = 7,
+	kRenderPC9821 = 8,
+	kRenderPC9801 = 9
+};
+
+struct RenderModeDescription {
+	const char *code;
+	const char *description;
+	RenderMode id;
+};
+
+extern const RenderModeDescription g_renderModes[];
+
+/** Convert a string containing a render mode name into a RenderingMode enum value. */
+extern RenderMode parseRenderMode(const String &str);
+extern const char *getRenderModeCode(RenderMode id);
+extern const char *getRenderModeDescription(RenderMode id);
+
+// TODO: Rename the following to something better; also, document it
+extern String renderMode2GUIO(RenderMode id);
+
+// TODO: Rename the following to something better; also, document it
+extern String allRenderModesGUIOs();
+
+
+} // End of namespace Common
+
+#endif