mutter/cogl/cogl-debug.h
Robert Bragg a1234ee8d1 Add internal _cogl_init() function
This adds a _cogl_init function for Cogl that we expect to be the first
thing called before anything else is done with Cogl. It's not a public
API so it's expected that all entry points for Cogl that might be the
first function used should call _cogl_init().

We currently call _cogl_init() in these functions:
  cogl_renderer_new
  cogl_display_new
  cogl_context_new
  cogl_android_set_native_window

_cogl_init() can be called multiple times, and only the first call has
any affect.

For example _cogl_init() gives us a place check and parse the COGL_DEBUG
environment variable.

Since we don't have any need to parse command line arguments (we can
always get user configuration options from the environment) our init
function doesn't require argc/argv pointers.

By saying up front that we aren't interested in command line arguments
that means we can avoid the mess that is GOption based library
initialization which is extremely fragile due to its lack of dependency
tracking between modules.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-06-30 14:33:11 +01:00

126 lines
3.5 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2007,2008,2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_DEBUG_H__
#define __COGL_DEBUG_H__
#include "cogl-profile.h"
#include "cogl-flags.h"
#include <glib.h>
G_BEGIN_DECLS
typedef enum {
COGL_DEBUG_SLICING,
COGL_DEBUG_OFFSCREEN,
COGL_DEBUG_DRAW,
COGL_DEBUG_PANGO,
COGL_DEBUG_RECTANGLES,
COGL_DEBUG_HANDLE,
COGL_DEBUG_BLEND_STRINGS,
COGL_DEBUG_DISABLE_BATCHING,
COGL_DEBUG_DISABLE_VBOS,
COGL_DEBUG_DISABLE_PBOS,
COGL_DEBUG_JOURNAL,
COGL_DEBUG_BATCHING,
COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM,
COGL_DEBUG_MATRICES,
COGL_DEBUG_ATLAS,
COGL_DEBUG_DUMP_ATLAS_IMAGE,
COGL_DEBUG_DISABLE_ATLAS,
COGL_DEBUG_DISABLE_SHARED_ATLAS,
COGL_DEBUG_OPENGL,
COGL_DEBUG_DISABLE_TEXTURING,
COGL_DEBUG_DISABLE_ARBFP,
COGL_DEBUG_DISABLE_FIXED,
COGL_DEBUG_DISABLE_GLSL,
COGL_DEBUG_SHOW_SOURCE,
COGL_DEBUG_DISABLE_BLENDING,
COGL_DEBUG_TEXTURE_PIXMAP,
COGL_DEBUG_BITMAP,
COGL_DEBUG_DISABLE_NPOT_TEXTURES,
COGL_DEBUG_WIREFRAME,
COGL_DEBUG_DISABLE_SOFTWARE_CLIP,
COGL_DEBUG_DISABLE_PROGRAM_CACHES,
COGL_DEBUG_DISABLE_FAST_READ_PIXEL,
COGL_DEBUG_CLIPPING,
COGL_DEBUG_WINSYS,
COGL_DEBUG_N_FLAGS
} CoglDebugFlags;
#ifdef COGL_ENABLE_DEBUG
#define COGL_DEBUG_N_INTS COGL_FLAGS_N_INTS_FOR_SIZE (COGL_DEBUG_N_FLAGS)
extern unsigned int _cogl_debug_flags[COGL_DEBUG_N_INTS];
extern GHashTable *_cogl_debug_instances;
#define COGL_DEBUG_ENABLED(flag) \
COGL_FLAGS_GET (_cogl_debug_flags, flag)
#define COGL_DEBUG_SET_FLAG(flag) \
COGL_FLAGS_SET (_cogl_debug_flags, flag, TRUE)
#define COGL_DEBUG_CLEAR_FLAG(flag) \
COGL_FLAGS_SET (_cogl_debug_flags, flag, FALSE)
#ifdef __GNUC__
#define COGL_NOTE(type,x,a...) G_STMT_START { \
if (G_UNLIKELY (COGL_DEBUG_ENABLED (COGL_DEBUG_##type))) { \
_cogl_profile_trace_message ("[" #type "] " G_STRLOC " & " x, ##a); \
} } G_STMT_END
#else
#define COGL_NOTE(type,...) G_STMT_START { \
if (G_UNLIKELY (COGL_DEBUG_ENABLED (COGL_DEBUG_##type)) { \
char *_fmt = g_strdup_printf (__VA_ARGS__); \
_cogl_profile_trace_message ("[" #type "] " G_STRLOC " & %s", _fmt);\
g_free (_fmt); \
} } G_STMT_END
#endif /* __GNUC__ */
#else /* !COGL_ENABLE_DEBUG */
#define COGL_NOTE(type,...) G_STMT_START {} G_STMT_END
#define COGL_DEBUG_ENABLED(flag) FALSE
#define COGL_DEBUG_SET_FLAG(flag) \
G_STMT_START { } G_STMT_END
#define COGL_DEBUG_CLEAR_FLAG(flag) \
G_STMT_START { } G_STMT_END
#endif /* COGL_ENABLE_DEBUG */
void
_cogl_debug_check_environment (void);
G_END_DECLS
#endif /* __COGL_DEBUG_H__ */