mesa/st: add ST_DEBUG environment variable

At last it's possible to turn on tgsi dumps and other debugging in the
state tracker without modifying sources...

1 files changed, 36 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_debug.h b/src/mesa/state_tracker/st_debug.h
index 49d752e1b23..4a060d7759c 100644
--- a/src/mesa/state_tracker/st_debug.h
+++ b/src/mesa/state_tracker/st_debug.h
@@ -29,8 +29,44 @@
 #ifndef ST_DEBUG_H
 #define ST_DEBUG_H
 
+#include "pipe/p_compiler.h"
+#include "util/u_debug.h"
+
 extern void
 st_print_current(void);
 
 
+#define DEBUG_MESA      0x1
+#define DEBUG_TGSI      0x2
+#define DEBUG_CONSTANTS 0x4
+#define DEBUG_PIPE      0x8
+#define DEBUG_TEX       0x10
+#define DEBUG_FALLBACK  0x20
+#define DEBUG_QUERY     0x40
+#define DEBUG_SCREEN    0x80
+
+#ifdef DEBUG
+extern int ST_DEBUG;
+#define DBSTR(x) x
+#else
+#define ST_DEBUG 0
+#define DBSTR(x) ""
+#endif
+
+void st_debug_init( void );
+
+static INLINE void
+ST_DBG( unsigned flag, const char *fmt, ... )
+{
+    if (ST_DEBUG & flag)
+    {
+        va_list args;
+
+        va_start( args, fmt );
+        debug_vprintf( fmt, args );
+        va_end( args );
+    }
+}
+
+
 #endif /* ST_DEBUG_H */