aux/bindings: Add script to generate steamvr input profiles

src/xrt/auxiliary/bindings/steamvr_profiles.py

@@ -0,0 +1,111 @@
+#!/usr/bin/env python3
+# Copyright 2020, Collabora, Ltd.
+# SPDX-License-Identifier: BSL-1.0
+"""Generate SteamVR input profiles from a JSON file describing interaction
+profiles and bindings."""
+
+from bindings import *
+import argparse
+import os
+import errno
+import json
+
+
+def names(p):
+    hw_name = str(p.name.split("/")[-1])
+    vendor_name = str(p.name.split("/")[-2])
+
+    fname = vendor_name + "_" + hw_name + "_profile.json"
+
+    return hw_name, vendor_name, fname
+
+
+def open_file(args, fname):
+    out_dir = str(args.output)
+    try:
+        os.makedirs(out_dir)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+
+    fname = out_dir + "/" + fname
+
+    f = open(fname, "w")
+    return f
+
+
+def steamvr_subpath_name(sub_path_name, sub_path_obj):
+    if sub_path_obj["type"] == "pose":
+        return sub_path_name.replace("/input/", "/pose/")
+
+    return sub_path_name
+
+
+def main():
+    """Handle command line and generate a file."""
+    parser = argparse.ArgumentParser(description='Bindings generator.')
+    parser.add_argument(
+        'bindings', help='Bindings file to use')
+    parser.add_argument(
+        'output', type=str, help='Output directory')
+    args = parser.parse_args()
+
+    bindings = Bindings.load_and_parse(args.bindings)
+
+    for p in bindings.profiles:
+
+        device_class = ""
+        if p.hw_type == "tracked_controller":
+            device_class = "TrackedDeviceClass_Controller"
+        else:
+            # TODO: profile for non-controller hw
+            continue
+
+        hw_name, vendor_name, fname = names(p)
+
+        input_source = {}
+
+        pg: PathGroup
+        for idx, pg in enumerate(p.pathgroups):
+            sp_name = steamvr_subpath_name(pg.sub_path_name, pg.sub_path_obj)
+            sp = pg.sub_path_obj
+
+            input_source[sp_name] = {
+                "type": sp["type"],
+                "binding_image_point": [0, 0],  # TODO
+                "order": idx
+            }
+            for component in ["click", "touch", "value", "force"]:
+                if component in sp:
+                    input_source[sp_name][component] = sp[component]
+
+        j = {
+            "json_id": "input_profile",
+            "controller_type": "monado_" + vendor_name + "_" + hw_name,
+            "device_class": device_class,
+            "resource_root": "steamvr-monado",
+            "driver_name": "monado",
+            # "legacy_binding": None, # TODO
+            "input_bindingui_mode": "controller_handed",
+            "should_show_binidng_errors": True,
+            "input_bindingui_left": {
+                "image": "{indexcontroller}/icons/indexcontroller_left.svg"  # TODO
+            },
+            "input_bindingui_right": {
+                "image": "{indexcontroller}/icons/indexcontroller_right.svg"  # TODO
+            },
+            "input_source": input_source
+
+        }
+
+        f = open_file(args, fname)
+
+        # print("Creating SteamVR input profile", f.name)
+
+        json.dump(j, f, indent=2)
+
+        f.close()
+
+
+if __name__ == "__main__":
+    main()