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authorsanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
committersanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
commit530ffd0b7d3c39757b20f00716e486b5caf89aff (patch)
tree76b35fdf57317038acf6b828871f6ae25fce2ebe /libs/cairo-1.16.0/src/cairo-time.c
parent3dbe9332e47c143a237db12440f134caebd1cfbe (diff)
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-time.c')
-rw-r--r--libs/cairo-1.16.0/src/cairo-time.c225
1 files changed, 225 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-time.c b/libs/cairo-1.16.0/src/cairo-time.c
new file mode 100644
index 0000000..a0003fb
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-time.c
@@ -0,0 +1,225 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright (c) 2007 Netlabs
+ * Copyright (c) 2006 Mozilla Corporation
+ * Copyright (c) 2006 Red Hat, Inc.
+ * Copyright (c) 2011 Andrea Canciani
+ *
+ * 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>
+ * Carl Worth <cworth@cworth.org>
+ * Andrea Canciani <ranma42@gmail.com>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-time-private.h"
+
+#if HAVE_CLOCK_GETTIME
+#if defined(CLOCK_MONOTONIC_RAW)
+#define CAIRO_CLOCK CLOCK_MONOTONIC_RAW
+#elif defined(CLOCK_MONOTONIC)
+#define CAIRO_CLOCK CLOCK_MONOTONIC
+#endif
+#endif
+
+#if defined(__APPLE__)
+#include <mach/mach_time.h>
+
+static cairo_always_inline double
+_cairo_time_1s (void)
+{
+ mach_timebase_info_data_t freq;
+
+ mach_timebase_info (&freq);
+
+ return 1000000000. * freq.denom / freq.numer;
+}
+
+cairo_time_t
+_cairo_time_get (void)
+{
+ return mach_absolute_time ();
+}
+
+#elif defined(__OS2__)
+#define INCL_BASE
+#include <os2.h>
+
+static cairo_always_inline double
+_cairo_time_1s (void)
+{
+ ULONG freq;
+
+ DosTmrQueryFreq (&freq);
+
+ return freq;
+}
+
+cairo_time_t
+_cairo_time_get (void)
+{
+ QWORD t;
+ cairo_int64_t r;
+
+ DosTmrQueryTime (&t);
+
+ r = _cairo_int64_lsl (_cairo_int32_to_int64 (t.ulHi), 32);
+ r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.ulLo));
+
+ return r;
+}
+
+#elif _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+static cairo_always_inline double
+_cairo_time_1s (void)
+{
+ LARGE_INTEGER freq;
+
+ QueryPerformanceFrequency (&freq);
+
+ return freq.QuadPart;
+}
+
+#ifndef HAVE_UINT64_T
+static cairo_always_inline cairo_time_t
+_cairo_time_from_large_integer (LARGE_INTEGER t)
+{
+ cairo_int64_t r;
+
+ r = _cairo_int64_lsl (_cairo_int32_to_int64 (t.HighPart), 32);
+ r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.LowPart));
+
+ return r;
+}
+#else
+static cairo_always_inline cairo_time_t
+_cairo_time_from_large_integer (LARGE_INTEGER t)
+{
+ return t.QuadPart;
+}
+#endif
+
+cairo_time_t
+_cairo_time_get (void)
+{
+ LARGE_INTEGER t;
+
+ QueryPerformanceCounter (&t);
+
+ return _cairo_time_from_large_integer(t);
+}
+
+#elif defined(CAIRO_CLOCK)
+#include <time.h>
+
+static cairo_always_inline double
+_cairo_time_1s (void)
+{
+ return 1000000000;
+}
+
+cairo_time_t
+_cairo_time_get (void)
+{
+ struct timespec t;
+ cairo_time_t r;
+
+ clock_gettime (CAIRO_CLOCK, &t);
+
+ r = _cairo_double_to_int64 (_cairo_time_1s ());
+ r = _cairo_int64_mul (r, _cairo_int32_to_int64 (t.tv_sec));
+ r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.tv_nsec));
+
+ return r;
+}
+
+#else
+#include <sys/time.h>
+
+static cairo_always_inline double
+_cairo_time_1s (void)
+{
+ return 1000000;
+}
+
+cairo_time_t
+_cairo_time_get (void)
+{
+ struct timeval t;
+ cairo_time_t r;
+
+ gettimeofday (&t, NULL);
+
+ r = _cairo_double_to_int64 (_cairo_time_1s ());
+ r = _cairo_int64_mul (r, _cairo_int32_to_int64 (t.tv_sec));
+ r = _cairo_int64_add (r, _cairo_int32_to_int64 (t.tv_usec));
+
+ return r;
+}
+
+#endif
+
+int
+_cairo_time_cmp (const void *a,
+ const void *b)
+{
+ const cairo_time_t *ta = a, *tb = b;
+ return _cairo_int64_cmp (*ta, *tb);
+}
+
+static double
+_cairo_time_ticks_per_sec (void)
+{
+ static double ticks = 0;
+
+ if (unlikely (ticks == 0))
+ ticks = _cairo_time_1s ();
+
+ return ticks;
+}
+
+static double
+_cairo_time_s_per_tick (void)
+{
+ static double s = 0;
+
+ if (unlikely (s == 0))
+ s = 1. / _cairo_time_ticks_per_sec ();
+
+ return s;
+}
+
+double
+_cairo_time_to_s (cairo_time_t t)
+{
+ return _cairo_int64_to_double (t) * _cairo_time_s_per_tick ();
+}
+
+cairo_time_t
+_cairo_time_from_s (double t)
+{
+ return _cairo_double_to_int64 (t * _cairo_time_ticks_per_sec ());
+}