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Diffstat (limited to 'libs/ardour/ardour/cycle_timer.h')
-rw-r--r-- | libs/ardour/ardour/cycle_timer.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libs/ardour/ardour/cycle_timer.h b/libs/ardour/ardour/cycle_timer.h new file mode 100644 index 0000000000..1ec7c74903 --- /dev/null +++ b/libs/ardour/ardour/cycle_timer.h @@ -0,0 +1,53 @@ +/* + Copyright (C) 2002 Paul Davis + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + $Id$ +*/ + +#ifndef __ardour_cycle_timer_h__ +#define __ardour_cycle_timer_h__ + +#include <string> +#include <cstdio> + +#include <ardour/cycles.h> + +using std::string; + +class CycleTimer { + private: + static float cycles_per_usec; + uint32_t long entry; + uint32_t long exit; + string _name; + + public: + CycleTimer(string name) : _name (name){ + if (cycles_per_usec == 0) { + cycles_per_usec = get_mhz (); + } + entry = get_cycles(); + } + ~CycleTimer() { + exit = get_cycles(); + printf ("%s: %.9f usecs (%lu-%lu)\n", _name.c_str(), (float) (exit - entry) / cycles_per_usec, entry, exit); + } + + static float get_mhz (); +}; + +#endif /* __ardour_cycle_timer_h__ */ |