Merge of first part of changes from the apricot branch, especially

the features that are needed to run the game. Compile tested with
scons, make, but not cmake, that seems to have an issue not related
to these changes. The changes include:

* GLSL support in the viewport and game engine, enable in the game
  menu in textured draw mode.
* Synced and merged part of the duplicated blender and gameengine/
  gameplayer drawing code.
* Further refactoring of game engine drawing code, especially mesh
  storage changed a lot.
* Optimizations in game engine armatures to avoid recomputations.
* A python function to get the framerate estimate in game.

* An option take object color into account in materials.
* An option to restrict shadow casters to a lamp's layers.
* Increase from 10 to 18 texture slots for materials, lamps, word.
  An extra texture slot shows up once the last slot is used.

* Memory limit for undo, not enabled by default yet because it
  needs the .B.blend to be changed.
* Multiple undo for image painting.

* An offset for dupligroups, so not all objects in a group have to
  be at the origin.

1 files changed, 87 insertions, 0 deletions

diff --git a/source/blender/gpu/intern/gpu_codegen.h b/source/blender/gpu/intern/gpu_codegen.h
new file mode 100644
index 00000000000..53b52f24f16
--- /dev/null
+++ b/source/blender/gpu/intern/gpu_codegen.h
@@ -0,0 +1,87 @@
+/**
+ * $Id$
+ *
+ * ***** 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
+