Matcap support in 3D Viewport.

Full log is here:
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.66/Usability#Matcap_in_3D_viewport

Implementation notes:

- Matcaps are an extension of Solid draw mode, and don't show in other drawmodes.
  (It's mostly intended to aid modeling/sculpt)

- By design, Matcaps are a UI feature, and only stored locally for the UI itself, and
  won't affect rendering or materials.

- Currently a set of 16 (GPL licensed) Matcaps have been compiled into Blender. 
  It doesn't take memory or cpu time, until you use it.

- Brush Icons and Matcaps use same code now, and only get generated/allocated on
  actually using it (instead of on startup).

- The current set might get new or different images still, based on user feedback.

- Matcap images are 512x512 pixels, so each image takes 1 Mb memory. Unused matcaps get 
  freed immediately. The Matcap icon previews (128x128 pixels) stay in memory.

- Loading own matcap image files will be added later. That needs design and code work 
  to get it stable and memory-friendly.

- The GLSL code uses the ID PreviewImage for matcaps. I tested it using the existing
  Material previews, which has its limits... especially for textured previews the
  normal-mapped matcap won't look good.

1 files changed, 51 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_datafiles.h b/source/blender/editors/include/ED_datafiles.h
index 6d7bcecc630..afe23090ae3 100644
--- a/source/blender/editors/include/ED_datafiles.h
+++ b/source/blender/editors/include/ED_datafiles.h
@@ -150,6 +150,57 @@ extern char datatoc_twist_png[];
 extern int datatoc_vertexdraw_png_size;
 extern char datatoc_vertexdraw_png[];
 
+/* Matcap files */
+
+extern int datatoc_mc01_jpg_size;
+extern char datatoc_mc01_jpg[];
+
+extern int datatoc_mc02_jpg_size;
+extern char datatoc_mc02_jpg[];
+
+extern int datatoc_mc03_jpg_size;
+extern char datatoc_mc03_jpg[];
+
+extern int datatoc_mc04_jpg_size;
+extern char datatoc_mc04_jpg[];
+
+extern int datatoc_mc05_jpg_size;
+extern char datatoc_mc05_jpg[];
+
+extern int datatoc_mc06_jpg_size;
+extern char datatoc_mc06_jpg[];
+
+extern int datatoc_mc07_jpg_size;
+extern char datatoc_mc07_jpg[];
+
+extern int datatoc_mc08_jpg_size;
+extern char datatoc_mc08_jpg[];
+
+extern int datatoc_mc09_jpg_size;
+extern char datatoc_mc09_jpg[];
+
+extern int datatoc_mc10_jpg_size;
+extern char datatoc_mc10_jpg[];
+
+extern int datatoc_mc11_jpg_size;
+extern char datatoc_mc11_jpg[];
+
+extern int datatoc_mc12_jpg_size;
+extern char datatoc_mc12_jpg[];
+
+extern int datatoc_mc13_jpg_size;
+extern char datatoc_mc13_jpg[];
+
+extern int datatoc_mc14_jpg_size;
+extern char datatoc_mc14_jpg[];
+
+extern int datatoc_mc15_jpg_size;
+extern char datatoc_mc15_jpg[];
+
+extern int datatoc_mc16_jpg_size;
+extern char datatoc_mc16_jpg[];
+
+
 
 #endif /* __ED_DATAFILES_H__ */