3D View: wrap GPU_select cache calls

Avoids including GPU_select and makes it more clear that the cache is
needed for view3d_opengl_select calls.

Also use typed enum for select mode.

source/blender/editors/armature/armature_select.c

@@ -53,8 +53,6 @@
 #include "ED_screen.h"
 #include "ED_view3d.h"
 
-#include "GPU_select.h"
-
 #include "armature_intern.h"
 
 /* utility macros for storing a temp int in the bone (selection flag) */
@@ -343,7 +341,7 @@ static EditBone *get_nearest_editbonepoint(
 	int hits = 0;
 
 	/* we _must_ end cache before return, use 'goto cache_end' */
-	GPU_select_cache_begin();
+	view3d_opengl_select_cache_begin();
 
 	BLI_rcti_init_pt_radius(&rect, mval, 12);
 	hits12 = view3d_opengl_select(vc, buffer, MAXPICKBUF, &rect, select_mode);
@@ -368,7 +366,7 @@ static EditBone *get_nearest_editbonepoint(
 	}
 
 cache_end:
-	GPU_select_cache_end();
+	view3d_opengl_select_cache_end();
 
 	/* See if there are any selected bones in this group */
 	if (hits > 0) {

source/blender/editors/include/ED_view3d.h

@@ -303,18 +303,21 @@ bool ED_view3d_autodist_depth_seg(struct ARegion *ar, const int mval_sta[2], con
 #define MAXPICKELEMS    2500
 #define MAXPICKBUF      (4 * MAXPICKELEMS)
 
-enum {
+typedef enum {
 	/* all elements in the region, ignore depth */
 	VIEW3D_SELECT_ALL = 0,
 	/* pick also depth sorts (only for small regions!) */
 	VIEW3D_SELECT_PICK_ALL = 1,
 	/* sorts and only returns visible objects (only for small regions!) */
 	VIEW3D_SELECT_PICK_NEAREST = 2,
-};
+} eV3DSelectMode;
+
+void view3d_opengl_select_cache_begin(void);
+void view3d_opengl_select_cache_end(void);
 
 int view3d_opengl_select(
         struct ViewContext *vc, unsigned int *buffer, unsigned int bufsize, const struct rcti *input,
-        int select_mode);
+        eV3DSelectMode select_mode);
 
 /* view3d_select.c */
 float ED_view3d_select_dist_px(void);

source/blender/editors/space_view3d/view3d_select.c

@@ -96,8 +96,6 @@
 
 #include "GPU_draw.h"
 
-#include "GPU_select.h"
-
 #include "view3d_intern.h"  /* own include */
 
 // #include "PIL_time_utildefines.h"
@@ -1243,7 +1241,7 @@ static int mixed_bones_object_selectbuffer(
 	int hits = 0;
 
 	/* we _must_ end cache before return, use 'goto finally' */
-	GPU_select_cache_begin();
+	view3d_opengl_select_cache_begin();
 
 	BLI_rcti_init_pt_radius(&rect, mval, 14);
 	hits15 = view3d_opengl_select(vc, buffer, MAXPICKBUF, &rect, select_mode);
@@ -1287,7 +1285,7 @@ static int mixed_bones_object_selectbuffer(
 	}
 
 finally:
-	GPU_select_cache_end();
+	view3d_opengl_select_cache_end();
 
 	return hits;
 }

source/blender/editors/space_view3d/view3d_view.c

@@ -1163,6 +1163,21 @@ static void view3d_select_loop(ViewContext *vc, Scene *scene, View3D *v3d, ARegi
 	}
 }
 
+/**
+ * Optionally cache data for multiple calls to #view3d_opengl_select
+ *
+ * just avoid GPU_select headers outside this file
+ */
+void view3d_opengl_select_cache_begin(void)
+{
+	GPU_select_cache_begin();
+}
+
+void view3d_opengl_select_cache_end(void)
+{
+	GPU_select_cache_end();
+}
+
 /**
  * \warning be sure to account for a negative return value
  * This is an error, "Too many objects in select buffer"
@@ -1172,7 +1187,7 @@ static void view3d_select_loop(ViewContext *vc, Scene *scene, View3D *v3d, ARegi
  */
 int view3d_opengl_select(
         ViewContext *vc, unsigned int *buffer, unsigned int bufsize, const rcti *input,
-        int select_mode)
+        eV3DSelectMode select_mode)
 {
 	Scene *scene = vc->scene;
 	View3D *v3d = vc->v3d;