Texture sampling function refactoring:

ALERT! POSSIBLE BREAKING COMMIT, ESPECIALLY FOR SCULPT!

Separate the sculpt sampling function so that it can be reused
from other paint systems. This includes updating of the relevant
coordinates for anchored and rake style brushes, which are now
being updated as part of the stroke system.

I left only code for area-style brush texture mapping in sculpt
code, since it requires a few data structures not present on other
paint systems.

This commit makes it almost as easy to support rake on other systems as
exposing the python UI for it. Also it makes it totally possible to
have texture painting capabilities in vertex paint too :) These commits
will follow very soon.

Also, even if I did my best to keep the code from breaking, (even fixed a
leftover bug from coordinate changes) this is a big change. Please test!

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/editors/sculpt_paint/paint_intern.h b/source/blender/editors/sculpt_paint/paint_intern.h
index 8d1076479cd..5371f644bcb 100644
--- a/source/blender/editors/sculpt_paint/paint_intern.h
+++ b/source/blender/editors/sculpt_paint/paint_intern.h
@@ -64,8 +64,9 @@ struct PaintStroke *paint_stroke_new(struct bContext *C,
                                      StrokeUpdateStep update_step, StrokeDone done, int event_type);
 void paint_stroke_data_free(struct wmOperator *op);
 
-bool paint_space_stroke_enabled(struct Brush *br);
-bool paint_supports_dynamic_size(struct Brush *br);
+bool paint_space_stroke_enabled(struct Brush *br, enum PaintMode mode);
+bool paint_supports_dynamic_size(struct Brush *br, enum PaintMode mode);
+bool paint_supports_moving_texture(struct Brush *br, enum PaintMode mode);
 bool paint_supports_jitter(enum PaintMode mode);
 
 struct wmKeyMap *paint_stroke_modal_keymap(struct wmKeyConfig *keyconf);