Catch logs from SDL.

Author: HexDecimal

build_sdl.py

@@ -205,6 +205,7 @@ def on_directive_handle(
 extern "Python" {
 // SDL_AudioCallback callback.
 void _sdl_audio_callback(void* userdata, Uint8* stream, int len);
+void _sdl_log_output_function(void *userdata, int category, SDL_LogPriority priority, const char *message);
 }
 """
 

tcod/sdl/__init__.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+from tcod.loader import ffi, lib
+
+logger = logging.getLogger(__name__)
+
+_LOG_PRIORITY = {
+    int(lib.SDL_LOG_PRIORITY_VERBOSE): logging.DEBUG,
+    int(lib.SDL_LOG_PRIORITY_DEBUG): logging.DEBUG,
+    int(lib.SDL_LOG_PRIORITY_INFO): logging.INFO,
+    int(lib.SDL_LOG_PRIORITY_WARN): logging.WARNING,
+    int(lib.SDL_LOG_PRIORITY_ERROR): logging.ERROR,
+    int(lib.SDL_LOG_PRIORITY_CRITICAL): logging.CRITICAL,
+}
+
+
+@ffi.def_extern()  # type: ignore
+def _sdl_log_output_function(_userdata: Any, category: int, priority: int, message: Any) -> None:
+    """Pass logs sent by SDL to Python's logging system."""
+    logger.log(_LOG_PRIORITY.get(priority, 0), "%i:%s", category, ffi.string(message).decode("utf-8"))
+
+
+lib.SDL_LogSetOutputFunction(lib._sdl_log_output_function, ffi.NULL)