trace: Hack to detect writes to user buffers.

It often happens that new data is written directly to the user buffers
without mapping/unmapping. This hack marks user buffers and dumps them
before passing them to pipe context.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/gallium/drivers/trace/tr_winsys.h b/src/gallium/drivers/trace/tr_winsys.h
index 2218117347..062ddf66a0 100644
--- a/src/gallium/drivers/trace/tr_winsys.h
+++ b/src/gallium/drivers/trace/tr_winsys.h
@@ -34,6 +34,14 @@
 #include "pipe/p_winsys.h"
 
 
+/**
+ * It often happens that new data is written directly to the user buffers 
+ * without mapping/unmapping. This flag marks user buffers, so that their 
+ * contents can be dumpped before being used by the pipe context.
+ */
+#define TRACE_BUFFER_USAGE_USER  (1 << 31)
+
+
 struct hash_table;
 
 
@@ -60,4 +68,9 @@ struct pipe_winsys *
 trace_winsys_create(struct pipe_winsys *winsys);
 
 
+void
+trace_winsys_user_buffer_update(struct pipe_winsys *winsys, 
+                                struct pipe_buffer *buffer);
+
+
 #endif /* TR_WINSYS_H_ */