cairo/perf/cairo-perf-os2.c
Andrea Canciani 463a8b67a3 perf: Fix build on win32
The performance tools build system for Win32 hasn't been maintained
for some time.  The makefiles are now structured as in other
directories (Makefile.sources used by both Makefile.am and
Makefile.win32) and some additional code hides os-specific parts.
2011-06-24 14:13:09 +02:00

99 lines
2.9 KiB
C

/*
* Copyright (c) 2007 Netlabs
* Copyright (c) 2006 Mozilla Corporation
* Copyright (c) 2006 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* the authors not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. The authors make no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Peter Weilbacher <mozilla@weilbacher.org>
* Vladimir Vukicevic <vladimir@pobox.com> (win32/linux code)
* Carl Worth <cworth@cworth.org> (win32/linux code)
*/
#include "cairo-perf.h"
#if CAIRO_HAS_OS2_SURFACE
#define INCL_BASE
#include <os2.h>
/* timers */
typedef struct _cairo_perf_timer
{
/* make them double so that they can store the full QWORD precision */
double start;
double stop;
} cairo_perf_timer_t;
static cairo_perf_timer_t timer;
static cairo_perf_timer_synchronize_t cairo_perf_timer_synchronize = NULL;
static void *cairo_perf_timer_synchronize_closure = NULL;
void
cairo_perf_timer_set_synchronize (cairo_perf_timer_synchronize_t synchronize,
void *closure)
{
cairo_perf_timer_synchronize = synchronize;
cairo_perf_timer_synchronize_closure = closure;
}
void
cairo_perf_timer_start (void) {
QWORD time;
if (cairo_perf_timer_synchronize)
cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
DosTmrQueryTime(&time);
timer.start = (time.ulHi*4294967296.0 + time.ulLo);
}
void
cairo_perf_timer_stop (void) {
QWORD time;
if (cairo_perf_timer_synchronize)
cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
DosTmrQueryTime(&time);
timer.stop = (time.ulHi*4294967296.0 + time.ulLo);
}
cairo_perf_ticks_t
cairo_perf_timer_elapsed (void) {
ULONG freq;
DosTmrQueryFreq(&freq);
/* return time difference in milliseconds */
return (timer.stop - timer.start) / freq * 1000;
}
cairo_perf_ticks_t
cairo_perf_ticks_per_second (void) {
return 1000; /* in ms */
}
/* yield */
void
cairo_perf_yield (void) {
/* try to deactivate this thread until the scheduler calls it again */
DosSleep (0);
}
#endif /* CAIRO_HAS_OS2_SURFACE */