Blender export GLSL shader patch

This patch adds the python module 'gpu' to blender with one method in it: export_shader(scene,material) to export the GLSL shader for use in an external game engine. 
The intention is to use this API in the X3D exporter to allow using the GLSL shader unchanged in the H3D game engine. The function export everything that's needed to use the shader.
Documentation in http://www.pasteall.org/22048/text

The patch modifies the GLSL library code by converting all 1D textures to 2D textures for compatibility with X3D. To keep it small, the patch does not include the modified 
source/blender/gpu/intern/gpu_shader_material.glsl.c
You must run
release/datafiles/datatoc.py source/blender/gpu/intern/gpu_shader_material.glsl
after applying the patch to update the C version of the GLSL library.

[ideasman42, 2011-06-01 08:39:42]

commented minor issue of struct type which Im quite sure is incorrect from
reading where its set and using the patch.

http://codereview.appspot.com/4529098/diff/1/source/blender/gpu/GPU_material.h
File source/blender/gpu/GPU_material.h (right):

http://codereview.appspot.com/4529098/diff/1/source/blender/gpu/GPU_material....
source/blender/gpu/GPU_material.h:199: struct Lamp *lamp;				/* when
type=GPU_DYNAMIC_LAMP_... or GPU_DYNAMIC_SAMPLER_2DSHADOW */
From using this patch, the type here is a lamp 'Object', but not lamp data.

[benoit.bolsee, 2011-06-01 11:07:25]

http://codereview.appspot.com/4529098/diff/1/source/blender/gpu/GPU_material.h
File source/blender/gpu/GPU_material.h (right):

http://codereview.appspot.com/4529098/diff/1/source/blender/gpu/GPU_material....
source/blender/gpu/GPU_material.h:199: struct Lamp *lamp;				/* when
type=GPU_DYNAMIC_LAMP_... or GPU_DYNAMIC_SAMPLER_2DSHADOW */
On 2011/06/01 08:39:43, ideasman42 wrote:
> From using this patch, the type here is a lamp 'Object', but not lamp data.

Yes, you are perfectly right. Initially I used the Lamp datablock, then realized
that it was not sufficient to get the position uniforms and changed to lamp
object, but I forgot to change the structure. Updating new patch.