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diff --git a/backends/graphics/opengl/pipeline.h b/backends/graphics/opengl/pipeline.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 BACKENDS_GRAPHICS_OPENGL_PIEPLINE_H
+#define BACKENDS_GRAPHICS_OPENGL_PIEPLINE_H
+
+#include "backends/graphics/opengl/opengl-sys.h"
+
+namespace OpenGL {
+
+/**
+ * Interface for OpenGL pipeline functionality.
+ *
+ * This encapsulates differences in various rendering pipelines used for
+ * OpenGL, OpenGL ES 1, and OpenGL ES 2.
+ */
+class Pipeline {
+public:
+	virtual ~Pipeline() {}
+
+	/**
+	 * Activate the pipeline.
+	 *
+	 * This sets the OpenGL state to make use of drawing with the given
+	 * OpenGL pipeline.
+	 */
+	virtual void activate() = 0;
+
+	/**
+	 * Set modulation color.
+	 *
+	 * @param r Red component in [0,1].
+	 * @param g Green component in [0,1].
+	 * @param b Blue component in [0,1].
+	 * @param a Alpha component in [0,1].
+	 */
+	virtual void setColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a) = 0;
+
+	/**
+	 * Setup coordinates for drawing with glDrawArrays.
+	 *
+	 * @param vertices  The list of vertices, 2 coordinates for each vertex.
+	 * @param texCoords The list of texture coordinates, 2 coordinates for
+	 *                  each vertex.
+	 */
+	virtual void setDrawCoordinates(const GLfloat *vertices, const GLfloat *texCoords) = 0;
+};
+
+#if !USE_FORCED_GLES2
+class FixedPipeline : public Pipeline {
+public:
+	virtual void activate();
+
+	virtual void setColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
+
+	virtual void setDrawCoordinates(const GLfloat *vertices, const GLfloat *texCoords);
+};
+#endif // !USE_FORCED_GLES2
+
+#if !USE_FORCED_GLES
+class ShaderPipeline : public Pipeline {
+public:
+	virtual void activate();
+
+	virtual void setColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a);
+
+	virtual void setDrawCoordinates(const GLfloat *vertices, const GLfloat *texCoords);
+};
+#endif // !USE_FORCED_GLES
+
+} // End of namespace OpenGL
+
+#endif