- split {curve,lattice,armature}_deform_verts out of mesh_deform

 - removed mesh_deform (merge into mesh_modifier)
 - switch python lattice_apply function to use object_apply_deform,
   this isn't exactly equivalent but the python system shouldn't
   have been calling that deep into the kernel anyway.

New feature: Modifier stack
 - added Object.modifiers (list of ModifierData elements)
 - added DNA_modifier_types.h
     o contains type definition for the file data for the various
       modifier types
 - added BKE_modifier.h
     o contains modifierType_get_info (access to modifier type registry)
     o structs and defines for runtime modifier usage
 - updated mesh_calc_modifiers to evaluate modifier stack (note that
   for the time being it also evaluates the old style modifiers so files
   should load and work as normal).
 - add file handling modifier code (todo: don't replicate on object copy)
 - add modifier stack UI code (lives in object panel)


Only real new feature at the moment is that you can apply lattices and
curves *after* a subdivision surface which was never possible before.

Todo:
 - DEP graph updating does not work correctly yet, so you generally have
   to tab cycle to see results.
 - editmode calculation does not use modifier stack.
 - bug fixes (there must be a few in there somewhere)

3 files changed, 55 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_modifier_types.h b/source/blender/makesdna/DNA_modifier_types.h
new file mode 100644
index 00000000000..486fc68785c
--- /dev/null
+++ b/source/blender/makesdna/DNA_modifier_types.h
@@ -0,0 +1,52 @@
+/**
+ * $Id$ 
+ */
+
+#ifndef DNA_MODIFIER_TYPES_H
+#define DNA_MODIFIER_TYPES_H
+
+typedef enum ModifierType {
+	eModifierType_None = 0,
+	eModifierType_Subsurf,
+	eModifierType_Lattice,
+	eModifierType_Curve,
+
+	NUM_MODIFIER_TYPES
+} ModifierType;
+
+	/* These numerical values are explicitly chosen so that 
+	 * (mode&1) is true for realtime calc and (mode&2) is true
+	 * for render calc.
+	 */
+typedef enum ModifierMode {
+	eModifierMode_Disabled = 0,
+	eModifierMode_OnlyRealtime = 1,
+	eModifierMode_OnlyRender = 2,
+	eModifierMode_RealtimeAndRender = 3,
+} ModifierMode;
+
+typedef struct ModifierData {
+	struct ModifierData *next, *prev;
+
+	int type, mode;
+} ModifierData;
+
+typedef struct SubsurfModifierData {
+	ModifierData modifier;
+
+	short subdivType, levels, renderLevels, pad;
+} SubsurfModifierData;
+
+typedef struct LatticeModifierData {
+	ModifierData modifier;
+
+	struct Object *object;
+} LatticeModifierData;
+
+typedef struct CurveModifierData {
+	ModifierData modifier;
+
+	struct Object *object;
+} CurveModifierData;
+
+#endif
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index 5959f6da594..ee55dcb19fb 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -103,6 +103,7 @@ typedef struct Object {
 	ListBase network;
 	ListBase disp;
 	ListBase defbase;
+	ListBase modifiers; /* list of ModifierData structures */
 	struct Material **mat;
 	
 	/* rot en drot have to be together! (transform('r' en 's')) */
diff --git a/source/blender/makesdna/intern/makesdna.c b/source/blender/makesdna/intern/makesdna.c
index 200639cd402..5a8a13f7d50 100644
--- a/source/blender/makesdna/intern/makesdna.c
+++ b/source/blender/makesdna/intern/makesdna.c
@@ -93,6 +93,7 @@ char *includefiles[] = {
 	"DNA_curve_types.h",
 	"DNA_mesh_types.h",
 	"DNA_meshdata_types.h",
+	"DNA_modifier_types.h",
 	"DNA_lattice_types.h",	
 	"DNA_object_types.h",
 	"DNA_object_force.h",
@@ -1107,6 +1108,7 @@ int main(int argc, char ** argv)
 #include "DNA_curve_types.h"
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
+#include "DNA_modifier_types.h"
 #include "DNA_lattice_types.h"	
 #include "DNA_object_types.h"
 #include "DNA_object_force.h"