Add support for Proton logging to stdout (Open-Wine-Components#279)

Author: Etaash-mathamsetty

umu/umu_run.py

@@ -321,6 +321,13 @@ def set_env(
     env["UMU_RUNTIME_UPDATE"] = os.environ.get("UMU_RUNTIME_UPDATE") or ""
     env["UMU_NO_PROTON"] = os.environ.get("UMU_NO_PROTON") or ""
 
+    # Proton logging (to stdout)
+    # Check for PROTON_LOG because it redirects output to log file
+    if os.environ.get("PROTON_LOG", "0") == "0":
+        env["WINEDEBUG"] = os.environ.get("WINEDEBUG") or "+fixme"
+        env["DXVK_LOG_LEVEL"] = os.environ.get("DXVK_LOG_LEVEL") or "info"
+        env["VKD3D_DEBUG"] = os.environ.get("VKD3D_DEBUG") or "fixme"
+
     return env