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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 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/>.
*
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include "cogl-i18n-private.h"
#include "cogl-private.h"
#include "cogl-debug.h"
/* XXX: If you add a debug option, please also add an option
* definition to cogl-debug-options.h. This will enable us - for
* example - to emit a "help" description for the option.
*/
/* NB: Only these options get enabled if COGL_DEBUG=all is
* used since they don't affect the behaviour of Cogl they
* simply print out verbose information */
static const GDebugKey cogl_log_debug_keys[] = {
{ "object", COGL_DEBUG_OBJECT },
{ "slicing", COGL_DEBUG_SLICING },
{ "atlas", COGL_DEBUG_ATLAS },
{ "blend-strings", COGL_DEBUG_BLEND_STRINGS },
{ "journal", COGL_DEBUG_JOURNAL },
{ "batching", COGL_DEBUG_BATCHING },
{ "matrices", COGL_DEBUG_MATRICES },
{ "draw", COGL_DEBUG_DRAW },
{ "opengl", COGL_DEBUG_OPENGL },
{ "pango", COGL_DEBUG_PANGO },
{ "show-source", COGL_DEBUG_SHOW_SOURCE},
{ "offscreen", COGL_DEBUG_OFFSCREEN },
{ "texture-pixmap", COGL_DEBUG_TEXTURE_PIXMAP },
{ "bitmap", COGL_DEBUG_BITMAP },
{ "clipping", COGL_DEBUG_CLIPPING },
{ "winsys", COGL_DEBUG_WINSYS },
{ "performance", COGL_DEBUG_PERFORMANCE }
};
static const int n_cogl_log_debug_keys =
G_N_ELEMENTS (cogl_log_debug_keys);
static const GDebugKey cogl_behavioural_debug_keys[] = {
{ "rectangles", COGL_DEBUG_RECTANGLES },
{ "disable-batching", COGL_DEBUG_DISABLE_BATCHING },
{ "disable-vbos", COGL_DEBUG_DISABLE_VBOS },
{ "disable-pbos", COGL_DEBUG_DISABLE_PBOS },
{ "disable-software-transform", COGL_DEBUG_DISABLE_SOFTWARE_TRANSFORM },
{ "dump-atlas-image", COGL_DEBUG_DUMP_ATLAS_IMAGE },
{ "disable-atlas", COGL_DEBUG_DISABLE_ATLAS },
{ "disable-shared-atlas", COGL_DEBUG_DISABLE_SHARED_ATLAS },
{ "disable-texturing", COGL_DEBUG_DISABLE_TEXTURING},
{ "disable-arbfp", COGL_DEBUG_DISABLE_ARBFP},
{ "disable-fixed", COGL_DEBUG_DISABLE_FIXED},
{ "disable-glsl", COGL_DEBUG_DISABLE_GLSL},
{ "disable-blending", COGL_DEBUG_DISABLE_BLENDING},
{ "disable-npot-textures", COGL_DEBUG_DISABLE_NPOT_TEXTURES},
{ "wireframe", COGL_DEBUG_WIREFRAME},
{ "disable-software-clip", COGL_DEBUG_DISABLE_SOFTWARE_CLIP},
{ "disable-program-caches", COGL_DEBUG_DISABLE_PROGRAM_CACHES},
{ "disable-fast-read-pixel", COGL_DEBUG_DISABLE_FAST_READ_PIXEL}
};
static const int n_cogl_behavioural_debug_keys =
G_N_ELEMENTS (cogl_behavioural_debug_keys);
unsigned long _cogl_debug_flags[COGL_DEBUG_N_LONGS];
GHashTable *_cogl_debug_instances;
static void
_cogl_parse_debug_string_for_keys (const char *value,
CoglBool enable,
const GDebugKey *keys,
unsigned int nkeys)
{
int long_num, key_num;
/* g_parse_debug_string expects the value field in GDebugKey to be a
mask in a guint but the flags is stored in an array of multiple
longs so we need to build a separate array for each possible
guint */
for (long_num = 0; long_num < COGL_DEBUG_N_LONGS; long_num++)
{
int int_num;
for (int_num = 0;
int_num < sizeof (unsigned long) / sizeof (unsigned int);
int_num++)
{
GDebugKey keys_for_int[sizeof (unsigned int) * 8];
int nkeys_for_int = 0;
for (key_num = 0; key_num < nkeys; key_num++)
{
int long_index = COGL_FLAGS_GET_INDEX (keys[key_num].value);
int int_index = (keys[key_num].value %
(sizeof (unsigned long) * 8) /
(sizeof (unsigned int) * 8));
if (long_index == long_num && int_index == int_num)
{
keys_for_int[nkeys_for_int] = keys[key_num];
keys_for_int[nkeys_for_int].value =
COGL_FLAGS_GET_MASK (keys[key_num].value) >>
(int_num * sizeof (unsigned int) * 8);
nkeys_for_int++;
}
}
if (nkeys_for_int > 0)
{
unsigned long mask =
((unsigned long) g_parse_debug_string (value,
keys_for_int,
nkeys_for_int)) <<
(int_num * sizeof (unsigned int) * 8);
if (enable)
_cogl_debug_flags[long_num] |= mask;
else
_cogl_debug_flags[long_num] &= ~mask;
}
}
}
}
void
_cogl_parse_debug_string (const char *value,
CoglBool enable,
CoglBool ignore_help)
{
if (ignore_help && strcmp (value, "help") == 0)
return;
/* We don't want to let g_parse_debug_string handle "all" because
* literally enabling all the debug options wouldn't be useful to
* anyone; instead the all option enables all non behavioural
* options.
*/
if (strcmp (value, "all") == 0 ||
strcmp (value, "verbose") == 0)
{
int i;
for (i = 0; i < n_cogl_log_debug_keys; i++)
if (enable)
COGL_DEBUG_SET_FLAG (cogl_log_debug_keys[i].value);
else
COGL_DEBUG_CLEAR_FLAG (cogl_log_debug_keys[i].value);
}
else if (g_ascii_strcasecmp (value, "help") == 0)
{
g_printerr ("\n\n%28s\n", _("Supported debug values:"));
#define OPT(MASK_NAME, GROUP, NAME, NAME_FORMATTED, DESCRIPTION) \
g_printerr ("%28s %s\n", NAME ":", g_dgettext (GETTEXT_PACKAGE, \
DESCRIPTION));
#include "cogl-debug-options.h"
g_printerr ("\n%28s\n", _("Special debug values:"));
OPT (IGNORED, "ignored", "all", "ignored", \
N_("Enables all non-behavioural debug options"));
OPT (IGNORED, "ignored", "verbose", "ignored", \
N_("Enables all non-behavioural debug options"));
#undef OPT
g_printerr ("\n"
"%28s\n"
" COGL_DISABLE_GL_EXTENSIONS: %s\n"
" COGL_OVERRIDE_GL_VERSION: %s\n",
_("Additional environment variables:"),
_("Comma-separated list of GL extensions to pretend are "
"disabled"),
_("Override the GL version that Cogl will assume the driver "
"supports"));
exit (1);
}
else
{
_cogl_parse_debug_string_for_keys (value,
enable,
cogl_log_debug_keys,
n_cogl_log_debug_keys);
_cogl_parse_debug_string_for_keys (value,
enable,
cogl_behavioural_debug_keys,
n_cogl_behavioural_debug_keys);
}
}
void
_cogl_debug_check_environment (void)
{
const char *env_string;
env_string = g_getenv ("COGL_DEBUG");
if (env_string != NULL)
{
_cogl_parse_debug_string (env_string,
TRUE /* enable the flags */,
FALSE /* don't ignore help */);
env_string = NULL;
}
env_string = g_getenv ("COGL_NO_DEBUG");
if (env_string != NULL)
{
_cogl_parse_debug_string (env_string,
FALSE /* disable the flags */,
FALSE /* don't ignore help */);
env_string = NULL;
}
}
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