mirror of
https://github.com/saphid/frame-control.git
synced 2026-10-26 04:08:26 +01:00
118 lines
5.3 KiB
Python
118 lines
5.3 KiB
Python
"""Small OpenVR diagnostic client; runs on the Frame, never polls another app's events.
|
|
|
|
Indices/signatures are for IVROverlay_027 and IVROverlayView_003 from Valve's
|
|
shipped openvr_capi.h, not interchangeable with IVROverlay_028.
|
|
"""
|
|
import ctypes as C
|
|
import hashlib
|
|
|
|
KEY = b'valve.steam.desktopgame.2001947813'
|
|
|
|
|
|
class Vector(C.Structure):
|
|
_fields_ = [('x', C.c_float), ('y', C.c_float)]
|
|
|
|
|
|
class Matrix(C.Structure):
|
|
_fields_ = [('m', (C.c_float * 4) * 3)]
|
|
|
|
|
|
class Mouse(C.Structure):
|
|
_fields_ = [('x', C.c_float), ('y', C.c_float), ('button', C.c_uint32)]
|
|
|
|
|
|
class Scroll(C.Structure):
|
|
_fields_ = [('xdelta',C.c_float),('ydelta',C.c_float),('unused',C.c_uint32),('viewportscale',C.c_float)]
|
|
|
|
|
|
class Data(C.Union):
|
|
_fields_ = [('mouse', Mouse), ('scroll', Scroll), ('reserved', C.c_uint64 * 6)]
|
|
|
|
|
|
class Event(C.Structure):
|
|
_pack_ = 4 # Linux OpenVR preserves its historical 4-byte event packing.
|
|
_fields_ = [('eventType', C.c_uint32), ('device', C.c_uint32),
|
|
('age', C.c_float), ('data', Data)]
|
|
|
|
|
|
class Overlay:
|
|
def __init__(self):
|
|
self.vr = C.CDLL('/opt/steamvr/bin/linuxarm64/libopenvr_api.so')
|
|
self.vr.VR_InitInternal2.argtypes = [C.POINTER(C.c_int), C.c_int, C.c_char_p]
|
|
self.vr.VR_GetGenericInterface.argtypes = [C.c_char_p, C.POINTER(C.c_int)]
|
|
self.vr.VR_GetGenericInterface.restype = C.c_void_p
|
|
error = C.c_int()
|
|
self.vr.VR_InitInternal2(C.byref(error), 3, None) # background, no scene focus
|
|
if error.value:
|
|
raise RuntimeError('OpenVR init: ' + str(error.value))
|
|
try:
|
|
self.table = self.interface(b'FnTable:IVROverlay_027')
|
|
self.handle = C.c_uint64()
|
|
rc = self.fn(0, C.c_int, C.c_char_p, C.POINTER(C.c_uint64))(KEY, C.byref(self.handle))
|
|
if rc:
|
|
raise RuntimeError('Frame Control overlay not found: ' + str(rc))
|
|
except Exception:
|
|
self.close()
|
|
raise
|
|
|
|
def interface(self, version):
|
|
error = C.c_int()
|
|
ptr = self.vr.VR_GetGenericInterface(version, C.byref(error))
|
|
if error.value or not ptr:
|
|
raise RuntimeError('OpenVR interface unavailable: ' + version.decode())
|
|
return C.cast(ptr, C.POINTER(C.c_void_p))
|
|
|
|
def fn(self, index, result, *args):
|
|
return C.CFUNCTYPE(result, *args)(self.table[index])
|
|
|
|
def snapshot(self):
|
|
h = self.handle
|
|
width, height = C.c_uint32(), C.c_uint32()
|
|
texture_error = self.fn(64, C.c_int, C.c_uint64, C.POINTER(C.c_uint32), C.POINTER(C.c_uint32))(h, C.byref(width), C.byref(height))
|
|
transform_type = C.c_int()
|
|
type_error = self.fn(31,C.c_int,C.c_uint64,C.POINTER(C.c_int))(h,C.byref(transform_type))
|
|
origin, matrix = C.c_int(), Matrix()
|
|
transform_error = self.fn(33, C.c_int, C.c_uint64, C.POINTER(C.c_int), C.POINTER(Matrix))(h, C.byref(origin), C.byref(matrix))
|
|
scale, method = Vector(), C.c_int()
|
|
scale_error = self.fn(49, C.c_int, C.c_uint64, C.POINTER(Vector))(h, C.byref(scale))
|
|
method_error = self.fn(47, C.c_int, C.c_uint64, C.POINTER(C.c_int))(h, C.byref(method))
|
|
return {'interface': 'IVROverlay_027',
|
|
'visible': bool(self.fn(43, C.c_bool, C.c_uint64)(h)),
|
|
'dashboardVisible': bool(self.fn(66, C.c_bool)()),
|
|
'activeDashboard': bool(self.fn(67, C.c_bool, C.c_uint64)(h)),
|
|
'texture': {'error': texture_error, 'width': width.value, 'height': height.value},
|
|
'transform': {'error': transform_error, 'typeError':type_error,'type':transform_type.value,'origin': origin.value,
|
|
'matrix': [list(row) for row in matrix.m]},
|
|
'input': {'error': method_error, 'method': method.value,
|
|
'scaleError': scale_error, 'scale': [scale.x, scale.y]}}
|
|
|
|
def post_mouse(self, kind, x, y, button=0):
|
|
# PostOverlayEvent is the supported overlay-view injection API. It is
|
|
# not a tracked controller and its void return does not prove delivery.
|
|
view = self.interface(b'FnTable:IVROverlayView_003')
|
|
event = Event(kind, 0xFFFFFFFF, 0, Data(mouse=Mouse(x, y, button)))
|
|
C.CFUNCTYPE(None, C.c_uint64, C.POINTER(Event))(view[2])(self.handle, C.byref(event))
|
|
|
|
def post_scroll(self, xdelta, ydelta):
|
|
view = self.interface(b'FnTable:IVROverlayView_003')
|
|
event = Event(309, 0xFFFFFFFF, 0, Data(scroll=Scroll(xdelta, ydelta, 0, 1)))
|
|
C.CFUNCTYPE(None, C.c_uint64, C.POINTER(Event))(view[2])(self.handle, C.byref(event))
|
|
|
|
def image_hash(self):
|
|
width, height = C.c_uint32(), C.c_uint32()
|
|
call = self.fn(6, C.c_int, C.c_uint64, C.c_void_p, C.c_uint32,
|
|
C.POINTER(C.c_uint32), C.POINTER(C.c_uint32))
|
|
rc = call(self.handle, None, 0, C.byref(width), C.byref(height))
|
|
size = width.value * height.value * 4
|
|
result = {'error': rc, 'width': width.value, 'height': height.value}
|
|
if 0 < size <= 32 * 1024 * 1024:
|
|
pixels = C.create_string_buffer(size)
|
|
rc = call(self.handle, pixels, size, C.byref(width), C.byref(height))
|
|
result['error'] = rc
|
|
if not rc:
|
|
result['sha256'] = hashlib.sha256(pixels.raw).hexdigest()
|
|
return result
|
|
|
|
def close(self):
|
|
self.vr.VR_ShutdownInternal()
|