OpenGL: implemenation of fixed function lighting as per pixel GLSL shaders. The

code is still unused, but the intention is to use this to solve the double sided
lighting problem on NVidia, and to make the materials work on OpenGL ES 2.0
eventually.

The code works and matches the fixed function lighting pretty much exactly, but
still needs optimizations. The actual integration in object draw will be
committed later when more fixing & testing, there's lots of different combinations
and unclear OpenGL state here.

SConstruct

@@ -527,11 +527,13 @@ if B.targets != ['cudakernels']:
     data_to_c_simple("release/datafiles/preview_cycles.blend")
 
     # --- glsl ---
+    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_fixed_fragment.glsl")
+    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_fixed_vertex.glsl")
+    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_material.glsl")
     data_to_c_simple("source/blender/gpu/shaders/gpu_shader_material.glsl")
-    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_vertex.glsl")
     data_to_c_simple("source/blender/gpu/shaders/gpu_shader_sep_gaussian_blur_frag.glsl")
     data_to_c_simple("source/blender/gpu/shaders/gpu_shader_sep_gaussian_blur_vert.glsl")
-    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_material.glsl")
+    data_to_c_simple("source/blender/gpu/shaders/gpu_shader_vertex.glsl")
     data_to_c_simple("source/blender/gpu/shaders/gpu_shader_vsm_store_frag.glsl")
     data_to_c_simple("source/blender/gpu/shaders/gpu_shader_vsm_store_vert.glsl")