summaryrefslogtreecommitdiff
path: root/cogl/cogl-debug.c
blob: 446313c01d3de503f1dc8c3879a870a4c838ad90 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
/*
 * Cogl
 *
 * A Low Level GPU Graphics and Utilities API
 *
 * Copyright (C) 2009 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use, copy,
 * modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>

#include "cogl-i18n-private.h"
#include "cogl-private.h"
#include "cogl-debug.h"
#include "cogl1-context.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 an unsigned int but the flags are stored in an array of
     multiple longs so we need to build a separate array for each
     possible unsigned int */

  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);
    }
}

#ifdef COGL_ENABLE_DEBUG
static CoglBool
cogl_arg_debug_cb (const char *key,
                   const char *value,
                   void *user_data)
{
  _cogl_parse_debug_string (value,
                            TRUE /* enable the flags */,
                            FALSE /* don't ignore help */);
  return TRUE;
}

static CoglBool
cogl_arg_no_debug_cb (const char *key,
                      const char *value,
                      void *user_data)
{
  _cogl_parse_debug_string (value,
                            FALSE, /* disable the flags */
                            TRUE /* ignore help */);
  return TRUE;
}
#endif /* COGL_ENABLE_DEBUG */

static GOptionEntry cogl_args[] = {
#ifdef COGL_ENABLE_DEBUG
  { "cogl-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_debug_cb,
    N_("Cogl debugging flags to set"), "FLAGS" },
  { "cogl-no-debug", 0, 0, G_OPTION_ARG_CALLBACK, cogl_arg_no_debug_cb,
    N_("Cogl debugging flags to unset"), "FLAGS" },
#endif /* COGL_ENABLE_DEBUG */
  { NULL, },
};

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;
    }
}

static CoglBool
pre_parse_hook (GOptionContext *context,
                GOptionGroup *group,
                void *data,
                GError **error)
{
  _cogl_init ();

  return TRUE;
}

/* XXX: GOption based library initialization is not reliable because the
 * GOption API has no way to represent dependencies between libraries.
 */
GOptionGroup *
cogl_get_option_group (void)
{
  GOptionGroup *group;

  group = g_option_group_new ("cogl",
                              _("Cogl Options"),
                              _("Show Cogl options"),
                              NULL, NULL);

  g_option_group_set_parse_hooks (group, pre_parse_hook, NULL);
  g_option_group_add_entries (group, cogl_args);
  g_option_group_set_translation_domain (group, GETTEXT_PACKAGE);

  return group;
}