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temporal: always use Temporal::reset() for superclock and TempoMap default values

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Make sure all code paths that use Temporal will initialize and reset it
properly. Some code paths (in tet runners) doesn't use Sessions, so
Temporal::reset() has to be invoked directly.

Just set the static superclock variable to 0 as initial value.
TempoMap will still be initialized early as a singleton, but we
introduce a new constructor so it is created empty (and thus not really
usable until Temporal::reset() or similar has populated it).

We can thus drop the static initialization of superclock. The default
superclock rate of 282240000 will now only live in Temporal::reset().

With this change there should no longer be any uninitialized use of
superclock_ticks_per_second(), and there should not be any problems for
DEBUG_EARLY_SCTS_USE to catch. (It is however broken in other ways -
that will be fixed next.)
This commit is contained in:
Mads Kiilerich 2022-06-18 21:09:14 +02:00 committed by Paul Davis
parent 622876c8ab
commit 91314b68a5
6 changed files with 8 additions and 6 deletions
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3
libs/ardour/test/testrunner.cc
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@ -11,6 +11,7 @@
#include "pbd/debug.h"
#include "ardour/ardour.h"
#include "temporal/types.h"
#include "test_ui.h"
static const char* localedir = LOCALEDIR;
@ -51,6 +52,8 @@ main(int argc, char* argv[])
CPPUNIT_ASSERT (ARDOUR::init (true, localedir));
Temporal::reset();
TestUI* test_ui = new TestUI();
CppUnit::TestResult testresult;

2
libs/temporal/superclock.cc
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@ -19,7 +19,7 @@
#include "temporal/superclock.h"
#ifndef COMPILER_MSVC
Temporal::superclock_t Temporal::_superclock_ticks_per_second = 282240000 ; /* 2^10 * 3^2 * 5^4 * 7^2 */
Temporal::superclock_t Temporal::_superclock_ticks_per_second = 0;
#endif
int Temporal::most_recent_engine_sample_rate = 48000; /* have to pick something as a default */

2
libs/temporal/tempo.cc
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@ -4373,7 +4373,7 @@ TempoMap::ramped_twist_tempi (TempoPoint& unused, TempoPoint& focus, TempoPoint&
void
TempoMap::init ()
{
WritableSharedPtr new_map (new TempoMap (Tempo (120, 4), Meter (4, 4)));
WritableSharedPtr new_map (new TempoMap ());
_map_mgr.init (new_map);
fetch ();
}

2
libs/temporal/temporal/superclock.h
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@ -32,7 +32,7 @@ typedef int64_t superclock_t;
#ifndef COMPILER_MSVC
extern superclock_t _superclock_ticks_per_second;
#else
static superclock_t _superclock_ticks_per_second = 282240000; /* 2^10 * 3^2 * 5^4 * 7^2 */
static superclock_t _superclock_ticks_per_second = 0;
#endif
extern bool scts_set;

1
libs/temporal/temporal/tempo.h
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@ -792,6 +792,7 @@ class /*LIBTEMPORAL_API*/ TempoMap : public PBD::StatefulDestructible
/* and now on with the rest of the show ... */
public:
LIBTEMPORAL_API TempoMap () {}
LIBTEMPORAL_API TempoMap (Tempo const& initial_tempo, Meter const& initial_meter);
LIBTEMPORAL_API TempoMap (TempoMap const&);
LIBTEMPORAL_API TempoMap (XMLNode const&, int version);

4
libs/temporal/test/testrunner.cc
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@ -51,9 +51,7 @@ main(int argc, char* argv[])
if (!PBD::init ()) return 1;
Temporal::init ();
// TempoMap::SharedPtr tmap = TempoMap::write_copy (); /* get writable copy of current tempo map */
// change it
// TempoMap::update (tmap); /* update the global tempo map manager */
Temporal::reset();
CppUnit::TestResult testresult;