C Logging: use instead of printf for messages

- See `--log` help message for usage.
- Supports enabling categories.
- Color severity.
- Optionally logs to a file.
- Currently use to replace printf calls in wm module.

See D3120 for details.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_global.h b/source/blender/blenkernel/BKE_global.h
index 832b4164613..ce8de456697 100644
--- a/source/blender/blenkernel/BKE_global.h
+++ b/source/blender/blenkernel/BKE_global.h
@@ -80,6 +80,13 @@ typedef struct Global {
 	 * however this is now only used for runtime options */
 	int f;
 
+	struct {
+		/* Logging vars (different loggers may use). */
+		int level;
+		/* FILE handle or use stderr (we own this so close when done). */
+		void *file;
+	} log;
+
 	/* debug flag, G_DEBUG, G_DEBUG_PYTHON & friends, set python or command line args */
 	int debug;