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diff --git a/source/blender/gpu/intern/gpu_codegen.h b/source/blender/gpu/intern/gpu_codegen.h
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+++ b/source/blender/gpu/intern/gpu_codegen.h
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+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2005 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Brecht Van Lommel.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __GPU_CODEGEN_H__
+#define __GPU_CODEGEN_H__
+
+#include "DNA_listBase.h"
+
+struct ListBase;
+struct GPUShader;
+struct GPUOutput;
+struct GPUNode;
+struct GPUVertexAttribs;
+
+#define MAX_FUNCTION_NAME	64
+#define MAX_PARAMETER		32
+
+#define FUNCTION_QUAL_IN	0
+#define FUNCTION_QUAL_OUT	1
+#define FUNCTION_QUAL_INOUT	2
+
+typedef struct GPUFunction {
+	char name[MAX_FUNCTION_NAME];
+	int paramtype[MAX_PARAMETER];
+	int paramqual[MAX_PARAMETER];
+	int totparam;
+} GPUFunction;
+
+GPUFunction *GPU_lookup_function(char *name);
+
+/* Pass Generation
+   - Takes a list of nodes and a desired output, and makes a pass. This
+     will take ownership of the nodes and free them early if unused or
+	 at the end if used.
+*/
+
+struct GPUPass;
+typedef struct GPUPass GPUPass;
+
+GPUPass *GPU_generate_pass(ListBase *nodes, struct GPUNodeLink *outlink,
+	struct GPUVertexAttribs *attribs, int *builtin, const char *name);
+
+struct GPUShader *GPU_pass_shader(GPUPass *pass);
+
+void GPU_pass_bind(GPUPass *pass, double time);
+void GPU_pass_update_uniforms(GPUPass *pass);
+void GPU_pass_unbind(GPUPass *pass);
+
+void GPU_pass_free(GPUPass *pass);
+
+/* Material calls */
+
+char *GPU_builtin_name(GPUBuiltin builtin);
+void gpu_material_add_node(struct GPUMaterial *material, struct GPUNode *node);
+int GPU_link_changed(struct GPUNodeLink *link);
+
+#endif
+