133 lines
5.0 KiB
Python
133 lines
5.0 KiB
Python
# Live repro of the GUI-open bug in the RUNNING app: load 6 Nexus + EZkeys,
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# transport PLAY, then OPEN_GUI ch=5 (Nexus) — exactly the frontend sequence.
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# Usage: python probe_app4_live.py
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import ctypes, ctypes.wintypes as w, struct, subprocess, sys, os, time, re
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sys.stdout.reconfigure(encoding='utf-8', errors='replace')
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APP_PID = 22264 # sonicforge-daw.exe (SHM name is per-PID)
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SHM_NAME = f"SonicForge_DAW_IPC_{APP_PID}".encode()
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SHM_NAME_LEGACY = b"SonicForge_DAW_IPC" # installed build still uses legacy name
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APP_LOG = os.path.join(os.environ.get('APPDATA', '.'), 'SonicForgeDAW', 'logs', 'bridge.log')
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VST = r"C:\Program Files\Common Files\VST3"
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NEXUS = os.path.join(VST, "Nexus.vst3")
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EZKEYS = os.path.join(VST, "Toontrack", "EZkeys 2.vst3")
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kernel32 = ctypes.WinDLL('kernel32', use_last_error=True)
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kernel32.OpenFileMappingA.argtypes = [ctypes.wintypes.DWORD, w.BOOL, ctypes.c_char_p]
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kernel32.OpenFileMappingA.restype = ctypes.c_void_p
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kernel32.MapViewOfFile.argtypes = [ctypes.c_void_p, ctypes.wintypes.DWORD, ctypes.wintypes.DWORD, ctypes.wintypes.DWORD, ctypes.c_size_t]
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kernel32.MapViewOfFile.restype = ctypes.c_void_p
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FILE_MAP_ALL_ACCESS = 0xF001F
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hMap = kernel32.OpenFileMappingA(FILE_MAP_ALL_ACCESS, False, SHM_NAME)
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name_used = SHM_NAME
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if not hMap:
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print(f"OpenFileMapping({SHM_NAME}) failed err={ctypes.get_last_error()}, trying legacy...")
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hMap = kernel32.OpenFileMappingA(FILE_MAP_ALL_ACCESS, False, SHM_NAME_LEGACY)
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name_used = SHM_NAME_LEGACY
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if not hMap:
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print(f"OpenFileMapping({SHM_NAME_LEGACY}) failed err={ctypes.get_last_error()}")
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sys.exit(1)
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ptr = kernel32.MapViewOfFile(hMap, FILE_MAP_ALL_ACCESS, 0, 0, 0)
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if not ptr:
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print("MapViewOfFile failed", ctypes.get_last_error()); sys.exit(1)
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print(f"SHM {name_used} mapped")
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def w32(off, fmt, *args):
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ctypes.memmove(ptr + off, struct.pack(fmt, *args), struct.calcsize(fmt))
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def rd32(off):
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return ctypes.c_uint32.from_address(ptr + off).value
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def write_control(ctype, arg0, arg1, ch, path):
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for i in range(8):
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off = 2836 + i * 1040
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if rd32(off) == 0:
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w32(off, 'IIII', ctype, arg0, arg1, ch)
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if path:
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b = path.encode('utf-8')[:1023] + b'\x00'
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ctypes.memmove(ptr + off + 16, b, len(b))
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return i
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raise RuntimeError("control queue full")
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def push_controls(events):
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for i in range(8):
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w32(2836 + i * 1040, 'I', 0)
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for (ctype, arg0, arg1, ch, path) in events:
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write_control(ctype, arg0, arg1, ch, path)
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w32(11156, 'I', len(events))
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def log_lines():
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try:
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with open(APP_LOG, 'r', encoding='utf-8', errors='replace') as f:
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return f.readlines()
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except FileNotFoundError:
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return []
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def wait_log(pattern, timeout, since):
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end = time.time() + timeout
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while time.time() < end:
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lines = log_lines()
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for i in range(since, len(lines)):
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if pattern in lines[i]:
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return lines[i].strip()
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time.sleep(0.2)
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return None
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def bridge_pid():
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try:
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out = subprocess.run(["tasklist", "/FI", "IMAGENAME eq daw_vst_bridge.exe", "/FO", "CSV"],
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capture_output=True, text=True).stdout
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for line in out.splitlines()[1:]:
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if "daw_vst_bridge" in line:
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return line.split(',')[1].strip('"')
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except Exception:
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pass
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return None
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# 1) LOAD 6 Nexus ch0-5 + EZkeys ch6 (restore session state after bridge restart)
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since = len(log_lines())
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evs = [(2, 0, 0, ch, NEXUS) for ch in range(6)] + [(2, 0, 0, 6, EZKEYS)]
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push_controls(evs)
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print("pushed LOAD x7; waiting for instruments...")
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loaded = []
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for ch in range(7):
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r = wait_log(f"instrument loaded ch={ch}", 60, since)
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loaded.append(r or "TIMEOUT")
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print(f" ch={ch}: {('loaded' if r else 'TIMEOUT')}")
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# 2) TRANSPORT PLAY
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since = len(log_lines())
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push_controls([(3, 1, 0, 0, "")])
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r = wait_log("transport PLAY", 10, since)
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print("transport:", r or "TIMEOUT")
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# 3) OPEN_GUI ch=5 (Nexus) while playing — same args as frontend open_vst_gui
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since = len(log_lines())
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push_controls([(4, 0, 0, 5, "Nexus")])
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print("pushed OPEN_GUI ch=5 plugin=Nexus; watching 40s...")
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pid0 = bridge_pid()
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t0 = time.time()
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wi0 = rd32(4)
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last_wi, last_t = wi0, t0
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stall_started = None
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events = []
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while time.time() - t0 < 40:
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wi = rd32(4)
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if wi != last_wi:
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last_wi, last_t = wi, time.time()
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stall_started = None
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elif stall_started is None and time.time() - last_t > 3.0:
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stall_started = time.time() - last_t
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print(f" [{time.time()-t0:.1f}s] bridge_write_index STALL {wi} since +{time.time()-last_t:.1f}s")
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pid = bridge_pid()
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if pid and pid != pid0:
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print(f" [{time.time()-t0:.1f}s] BRIDGE RESTARTED pid {pid0} -> {pid}")
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pid0 = pid
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lines = log_lines()
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for i in range(since, len(lines)):
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l = lines[i].strip()
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if any(k in l for k in ("EXCEPTION", "FAILED", "attached", "deferred", "restarted", "Starting DAW")):
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print(f" [{time.time()-t0:.1f}s] LOG: {l}")
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time.sleep(0.2)
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print("done. write_index advanced:", last_wi, ">", wi0)
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