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profile: Print warning if "Mainloop" timer missing

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As a helpful aid Cogl will now print a warning if no "Mainloop" UProf
timer was setup by the application that explains that either Clutter
should be built with --enable-profile or if Clutter isn't being used
then it shows how it can create its own Mainloop timer.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 3d052dbca86bf36f30b2d60ff59b967d14665436)
This commit is contained in:
Robert Bragg 2012-08-27 19:54:37 +01:00
parent 85efcfac2a
commit ac72d0685c
1 changed files with 43 additions and 1 deletions
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44
cogl/cogl-profile.c
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@ -35,7 +35,48 @@ print_exit_report (void)
{ {
if (getenv ("COGL_PROFILE_OUTPUT_REPORT")) if (getenv ("COGL_PROFILE_OUTPUT_REPORT"))
{ {
UProfReport *report = uprof_report_new ("Cogl report"); UProfContext *mainloop_context;
UProfTimerResult *mainloop_timer;
UProfReport *report;
/* NB: uprof provides a shared context for mainloop statistics
* which needs to be setup by the application which controls the
* mainloop.
*
* If no "Mainloop" timer has been setup then we print a warning
* since we can't provide a meaningful Cogl report without one.
*/
mainloop_context = uprof_get_mainloop_context ();
mainloop_timer = uprof_context_get_timer_result (mainloop_context,
"Mainloop");
/* just bail out if the mainloop timer wasn't hit */
if (!mainloop_timer)
{
g_warning ("\n\n"
"No UProf \"Mainloop\" timer was setup by the "
"application therefore we\ncan't provide a meaningful "
"profile report.\n"
"\n"
"This should be done automatically if you are using Clutter "
"(if\nbuilt with --enable-profile)\n"
"\n"
"If you aren't using Clutter then you can declare a "
"\"Mainloop\" UProf\ntimer in your application like this:\n\n"
" UPROF_STATIC_TIMER (mainloop_timer, \n"
" NULL,\n"
" \"Mainloop\",\n"
" \"Time in glib mainloop\",\n"
" 0);\n"
"\n"
"And start/stop it around your mainloop like this:\n"
"\n"
" UPROF_TIMER_START (uprof_get_mainloop_context (), mainloop_timer);\n"
" g_main_loop_run (loop);\n"
" UPROF_TIMER_STOP (uprof_get_mainloop_context (), mainloop_timer);\n");
return;
}
report = uprof_report_new ("Cogl report");
uprof_report_add_context (report, _cogl_uprof_context); uprof_report_add_context (report, _cogl_uprof_context);
uprof_report_print (report); uprof_report_print (report);
uprof_report_unref (report); uprof_report_unref (report);
@ -47,6 +88,7 @@ void
_cogl_uprof_init (void) _cogl_uprof_init (void)
{ {
_cogl_uprof_context = uprof_context_new ("Cogl"); _cogl_uprof_context = uprof_context_new ("Cogl");
uprof_context_link (_cogl_uprof_context, uprof_get_mainloop_context ());
#define OPT(MASK_NAME, GROUP, NAME, NAME_FORMATTED, DESCRIPTION) \ #define OPT(MASK_NAME, GROUP, NAME, NAME_FORMATTED, DESCRIPTION) \
G_STMT_START { \ G_STMT_START { \
int shift = COGL_DEBUG_ ## MASK_NAME; \ int shift = COGL_DEBUG_ ## MASK_NAME; \