mutter/clutter/clutter-debug.h
Emmanuele Bassi a9941e9499 debug: Split debugging notes from behavioural modifiers
Some of the ClutterDebugFlags are not meant as a logging facility: they
actually change Clutter's behaviour at run-time.

It would be useful to have this distinction ratified, and thus split
ClutterDebugFlags into two: one DebugFlags for logging facilities and
another set of flags for behavioural changes.

This split is warranted because:

  • it should be possible to do "CLUTTER_DEBUG=all" and only have
    log messages on the output

  • it should be possible to use behavioural modifiers even on a
    Clutter that has been compiled without debugging messages
    support

The commit adds two new debugging flags:

  ClutterPickDebugFlags - controlled by the CLUTTER_PICK environment
                          variable

  ClutterPaintDebugFlags - controlled by the CLUTTER_PAINT environment
                           variable

The PickDebugFlags are:

  nop-picking
  dump-pick-buffers

While the PaintDebugFlags is:

  disable-swap-events

The mechanism is equivalent to the CLUTTER_DEBUG environment variable,
but it does not depend on the debug level selected when configuring and
compiling Clutter. The picking and painting debugging flags are
initialized at clutter_init() time.

http://bugzilla.openedhand.com/show_bug.cgi?id=1991
2010-02-23 14:39:23 +00:00

103 lines
3.9 KiB
C

#ifndef __CLUTTER_DEBUG_H__
#define __CLUTTER_DEBUG_H__
#include <glib.h>
#include "clutter-main.h"
G_BEGIN_DECLS
typedef enum {
CLUTTER_DEBUG_MISC = 1 << 0,
CLUTTER_DEBUG_ACTOR = 1 << 1,
CLUTTER_DEBUG_TEXTURE = 1 << 2,
CLUTTER_DEBUG_EVENT = 1 << 3,
CLUTTER_DEBUG_PAINT = 1 << 4,
CLUTTER_DEBUG_GL = 1 << 5,
CLUTTER_DEBUG_ALPHA = 1 << 6,
CLUTTER_DEBUG_BEHAVIOUR = 1 << 7,
CLUTTER_DEBUG_PANGO = 1 << 8,
CLUTTER_DEBUG_BACKEND = 1 << 9,
CLUTTER_DEBUG_SCHEDULER = 1 << 10,
CLUTTER_DEBUG_SCRIPT = 1 << 11,
CLUTTER_DEBUG_SHADER = 1 << 12,
CLUTTER_DEBUG_MULTISTAGE = 1 << 13,
CLUTTER_DEBUG_ANIMATION = 1 << 14,
CLUTTER_DEBUG_LAYOUT = 1 << 15,
} ClutterDebugFlag;
typedef enum {
CLUTTER_DEBUG_NOP_PICKING = 1 << 0,
CLUTTER_DEBUG_DUMP_PICK_BUFFERS = 1 << 1
} ClutterPickDebugFlag;
typedef enum {
CLUTTER_DEBUG_DISABLE_SWAP_EVENTS = 1 << 0
} ClutterDrawDebugFlag;
#ifdef CLUTTER_ENABLE_DEBUG
#ifdef __GNUC__
#define CLUTTER_NOTE(type,x,a...) G_STMT_START { \
if (clutter_debug_flags & CLUTTER_DEBUG_##type) \
{ g_message ("[" #type "] " G_STRLOC ": " x, ##a); } \
} G_STMT_END
#define CLUTTER_TIMESTAMP(type,x,a...) G_STMT_START { \
if (clutter_debug_flags & CLUTTER_DEBUG_##type) \
{ g_message ("[" #type "]" " %li:" G_STRLOC ": " \
x, clutter_get_timestamp(), ##a); } \
} G_STMT_END
#else
/* Try the C99 version; unfortunately, this does not allow us to pass
* empty arguments to the macro, which means we have to
* do an intemediate printf.
*/
#define CLUTTER_NOTE(type,...) G_STMT_START { \
if (clutter_debug_flags & CLUTTER_DEBUG_##type) \
{ \
gchar * _fmt = g_strdup_printf (__VA_ARGS__); \
g_message ("[" #type "] " G_STRLOC ": %s",_fmt); \
g_free (_fmt); \
} \
} G_STMT_END
#define CLUTTER_TIMESTAMP(type,...) G_STMT_START { \
if (clutter_debug_flags & CLUTTER_DEBUG_##type) \
{ \
gchar * _fmt = g_strdup_printf (__VA_ARGS__); \
g_message ("[" #type "]" " %li:" G_STRLOC ": %s", \
clutter_get_timestamp(), _fmt); \
g_free (_fmt); \
} \
} G_STMT_END
#endif
#define CLUTTER_MARK() CLUTTER_NOTE(MISC, "== mark ==")
#define CLUTTER_DBG(x) { a }
#define CLUTTER_GLERR() G_STMT_START { \
if (clutter_debug_flags & CLUTTER_DEBUG_GL) \
{ GLenum _err = glGetError (); /* roundtrip */ \
if (_err != GL_NO_ERROR) \
g_warning (G_STRLOC ": GL Error %x", _err); \
} } G_STMT_END
#else /* !CLUTTER_ENABLE_DEBUG */
#define CLUTTER_NOTE(type,...) G_STMT_START { } G_STMT_END
#define CLUTTER_MARK() G_STMT_START { } G_STMT_END
#define CLUTTER_DBG(x) G_STMT_START { } G_STMT_END
#define CLUTTER_GLERR() G_STMT_START { } G_STMT_END
#define CLUTTER_TIMESTAMP(type,...) G_STMT_START { } G_STMT_END
#endif /* CLUTTER_ENABLE_DEBUG */
extern guint clutter_debug_flags;
extern guint clutter_pick_debug_flags;
extern guint clutter_paint_debug_flags;
G_END_DECLS
#endif /* __CLUTTER_DEBUG_H__ */