perf: Reuse cairo-time

Instead of redefining time getters, use the generic one provided by
_cairo_time_*.

7 files changed, 66 insertions, 421 deletions

diff --git a/perf/Makefile.am b/perf/Makefile.am
index 88f691fc..28a4720a 100644
--- a/perf/Makefile.am
+++ b/perf/Makefile.am
@@ -48,6 +48,7 @@ cairo_perf_micro_DEPENDENCIES = \
 
 libcairoperf_la_SOURCES = \
 	$(libcairoperf_sources)	\
+	$(libcairoperf_external_sources)
 	$(libcairoperf_headers)
 
 cairo_analyse_trace_SOURCES = \
diff --git a/perf/Makefile.sources b/perf/Makefile.sources
index 0c15ae9c..b99234b2 100644
--- a/perf/Makefile.sources
+++ b/perf/Makefile.sources
@@ -1,11 +1,10 @@
 libcairoperf_sources = \
-	cairo-perf-os2.c	\
-	cairo-perf-posix.c	\
-	cairo-perf-report.c	\
-	cairo-perf-win32.c	\
+	cairo-perf.c	\
 	cairo-stats.c		\
 	$(NULL)
 
+libcairoperf_external_sources = ../src/cairo-time.c
+
 libcairoperf_headers = \
 	cairo-perf.h   \
 	cairo-stats.h  \
diff --git a/perf/cairo-perf-posix.c b/perf/cairo-perf-posix.c
deleted file mode 100644
index 59d8e3c1..00000000
--- a/perf/cairo-perf-posix.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Copyright © 2006 Mozilla Corporation
- * Copyright © 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: Vladimir Vukicevic <vladimir@pobox.com>
- *	    Carl Worth <cworth@cworth.org>
- */
-
-/* Portions of this file come from liboil:
- *
- * LIBOIL - Library of Optimized Inner Loops
- * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define _XOPEN_SOURCE 600	/* for round() */
-
-#include "cairo-perf.h"
-
-#if !CAIRO_HAS_OS2_SURFACE && !CAIRO_HAS_WIN32_SURFACE
-
-#include "config.h"
-
-#include <signal.h>
-#include <time.h>
-#include <sys/time.h>
-#include <unistd.h>
-#ifdef _POSIX_PRIORITY_SCHEDULING
-#include <sched.h>
-#endif
-
-/* timers */
-
-#if defined(HAVE_CLOCK_GETTIME)
-#if defined(CLOCK_MONOTONIC_RAW)
-#define CLOCK CLOCK_MONOTONIC_RAW
-#elif defined(CLOCK_MONOTONIC)
-#define CLOCK CLOCK_MONOTONIC
-#endif
-#endif
-
-#if ! defined(CLOCK)
-#if defined(__i386__) || defined(__amd64__)
-static inline cairo_perf_ticks_t
-oil_profile_stamp_rdtsc (void)
-{
-    unsigned a, d;
-    __asm__ __volatile__("rdtsc" : "=a" (a), "=d" (d));
-    return ((uint64_t)a) | (((uint64_t)d) << 32);
-}
-#define OIL_STAMP oil_profile_stamp_rdtsc
-#endif
-
-#if defined(__powerpc__) || defined(__PPC__) || defined(__ppc__)
-static inline cairo_perf_ticks_t
-oil_profile_stamp_tb (void)
-{
-    uint32_t junk;
-    uint64_t ts;
-
-    __asm__ __volatile__ (
-	"1:     mftbu   %1;"
-	"       mftb    %0+1;"
-	"       mftbu   %0;"
-	"       cmpw    %0,%1;"
-	"       bne     1b" :
-	"=r" (ts), "=r" (junk));
-
-    return ts;
-}
-#define OIL_STAMP oil_profile_stamp_tb
-#endif
-
-#if defined(__alpha__)
-static inline cairo_perf_ticks_t
-oil_profile_stamp_alpha (void)
-{
-    unsigned int ts;
-    __asm__ __volatile__ ("rpcc %0\n" : "=r"(ts));
-    return ts;
-}
-#define OIL_STAMP oil_profile_stamp_alpha
-#endif
-
-#if defined(__s390__)
-static cairo_perf_ticks_t
-oil_profile_stamp_s390 (void)
-{
-    uint64_t ts;
-    __asm__ __volatile__ ("STCK %0\n" : : "m" (ts));
-    return ts;
-}
-#define OIL_STAMP oil_profile_stamp_s390
-#endif
-#endif
-
-#if defined(__APPLE__)
-#include <mach/mach_time.h>
-#undef OIL_STAMP
-#define OIL_STAMP mach_absolute_time
-#endif
-
-
-typedef struct _cairo_perf_timer {
-#if defined(CLOCK)
-    struct timespec tv_start;
-    struct timespec tv_stop;
-#elif defined(OIL_STAMP)
-    cairo_perf_ticks_t start;
-    cairo_perf_ticks_t stop;
-#else
-    struct timeval tv_start;
-    struct timeval tv_stop;
-#endif
-} 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)
-{
-    if (cairo_perf_timer_synchronize)
-	cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
-
-#if defined(CLOCK)
-    clock_gettime (CLOCK, &timer.tv_start);
-#elif defined(OIL_STAMP)
-    timer.start = OIL_STAMP ();
-#else
-    gettimeofday (&timer.tv_start, NULL);
-#endif
-}
-
-void
-cairo_perf_timer_stop (void)
-{
-    if (cairo_perf_timer_synchronize)
-	cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
-
-#if defined(CLOCK)
-    clock_gettime (CLOCK, &timer.tv_stop);
-#elif defined(OIL_STAMP)
-    timer.stop = OIL_STAMP ();
-#else
-    gettimeofday (&timer.tv_stop, NULL);
-#endif
-}
-
-cairo_perf_ticks_t
-cairo_perf_timer_elapsed (void)
-{
-    cairo_perf_ticks_t ticks;
-
-#if defined(CLOCK)
-    ticks  = timer.tv_stop.tv_sec - timer.tv_start.tv_sec;
-    ticks *= 1000000000;
-    ticks += timer.tv_stop.tv_nsec - timer.tv_start.tv_nsec;
-#elif defined(OIL_STAMP)
-    ticks = timer.stop - timer.start;
-#else
-    ticks  = timer.tv_stop.tv_sec - timer.tv_start.tv_sec;
-    ticks *= 1000000;
-    ticks += timer.tv_stop.tv_usec - timer.tv_start.tv_usec;
-#endif
-
-    return ticks;
-}
-
-cairo_perf_ticks_t
-cairo_perf_ticks_per_second (void)
-{
-#if defined(CLOCK)
-    /* For clock_gettime() the units are nano-seconds */
-    return 1000000000;
-#elif defined(OIL_STAMP)
-    static cairo_perf_ticks_t tps = 0;
-    /* XXX: This is obviously not stable in light of changing CPU speed. */
-    if (tps == 0) {
-	struct timeval tv_start, tv_stop;
-	double tv_elapsed;
-	cairo_perf_timer_start ();
-	gettimeofday (&tv_start, NULL);
-	usleep (20000);
-	cairo_perf_timer_stop ();
-	gettimeofday (&tv_stop, NULL);
-	tv_elapsed = ((tv_stop.tv_sec - tv_start.tv_sec) +
-		      + (tv_stop.tv_usec - tv_start.tv_usec) / 1000000.0);
-	tps = round (cairo_perf_timer_elapsed () / tv_elapsed);
-    }
-    return tps;
-#else
-    /* For gettimeofday() the units are micro-seconds */
-    return 1000000;
-#endif
-}
-
-/* yield */
-
-void
-cairo_perf_yield (void)
-{
-#ifdef _POSIX_PRIORITY_SCHEDULING
-    sched_yield ();
-#endif
-}
-
-#endif /* !CAIRO_HAS_OS2_SURFACE && !CAIRO_HAS_WIN32_SURFACE */
diff --git a/perf/cairo-perf-win32.c b/perf/cairo-perf-win32.c
deleted file mode 100644
index 23b8fb47..00000000
--- a/perf/cairo-perf-win32.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright © 2006 Mozilla Corporation
- * Copyright © 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: Vladimir Vukicevic <vladimir@pobox.com>
- *	    Carl Worth <cworth@cworth.org>
- */
-
-#include "cairo-perf.h"
-
-#if CAIRO_HAS_WIN32_SURFACE
-
-#define USE_WINAPI
-
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-
-/* timers */
-
-typedef struct _cairo_perf_timer
-{
-    LARGE_INTEGER start;
-    LARGE_INTEGER 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) {
-    if (cairo_perf_timer_synchronize)
-	cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
-    QueryPerformanceCounter(&timer.start);
-}
-
-void
-cairo_perf_timer_stop (void) {
-    if (cairo_perf_timer_synchronize)
-	cairo_perf_timer_synchronize (cairo_perf_timer_synchronize_closure);
-    QueryPerformanceCounter(&timer.stop);
-}
-
-cairo_perf_ticks_t
-cairo_perf_timer_elapsed (void) {
-    return (timer.stop.QuadPart - timer.start.QuadPart);
-}
-
-cairo_perf_ticks_t
-cairo_perf_ticks_per_second (void) {
-    LARGE_INTEGER freq;
-
-    QueryPerformanceFrequency(&freq);
-
-    return freq.QuadPart;
-}
-
-
-/* yield */
-
-void
-cairo_perf_yield (void) {
-    SleepEx(0, TRUE);
-}
-
-#endif /* CAIRO_HAS_WIN32_SURFACE */
diff --git a/perf/cairo-perf-os2.c b/perf/cairo-perf.c
index 18499387..1a60bdc4 100644
--- a/perf/cairo-perf-os2.c
+++ b/perf/cairo-perf.c
@@ -2,6 +2,7 @@
  * 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
@@ -25,27 +26,32 @@
  * Authors: Peter Weilbacher <mozilla@weilbacher.org>
  *	    Vladimir Vukicevic <vladimir@pobox.com> (win32/linux code)
  *	    Carl Worth <cworth@cworth.org> (win32/linux code)
+ *          Andrea Canciani <ranma42@gmail.com>
  */
 
 #include "cairo-perf.h"
+#include "../src/cairo-time-private.h"
 
-#if CAIRO_HAS_OS2_SURFACE
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
+#if defined(__OS2__)
 #define INCL_BASE
 #include <os2.h>
+#elif defined(_WIN32)
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#elif defined(_POSIX_PRIORITY_SCHEDULING)
+#include <sched.h>
+#endif
 
-/* 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;
 
+/* timers */
+static cairo_time_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)
@@ -55,45 +61,41 @@ cairo_perf_timer_set_synchronize (cairo_perf_timer_synchronize_t  synchronize,
 }
 
 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);
+cairo_perf_timer_start (void)
+{
+    timer = _cairo_time_get ();
 }
 
 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_timer_stop (void)
+{
+    timer = _cairo_time_get_delta (timer);
 }
 
-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_time_t
+cairo_perf_timer_elapsed (void)
+{
+    return timer;
 }
 
-cairo_perf_ticks_t
-cairo_perf_ticks_per_second (void) {
-    return 1000; /* in ms */
+cairo_time_t
+cairo_perf_ticks_per_second (void)
+{
+    return _cairo_time_from_s (1.);
 }
 
-
-/* yield */
 void
-cairo_perf_yield (void) {
+cairo_perf_yield (void)
+{
     /* try to deactivate this thread until the scheduler calls it again */
+
+#if defined(__OS2__)
     DosSleep (0);
+#elif defined(_WIN32)
+    SleepEx(0, TRUE);
+#elif defined(_POSIX_PRIORITY_SCHEDULING)
+    sched_yield ();
+#else
+    sleep (0);
+#endif
 }
-
-#endif /* CAIRO_HAS_OS2_SURFACE */
diff --git a/perf/cairo-perf.h b/perf/cairo-perf.h
index 9c70b5b3..df5e1412 100644
--- a/perf/cairo-perf.h
+++ b/perf/cairo-perf.h
@@ -29,9 +29,10 @@
 #define _CAIRO_PERF_H_
 
 #include "cairo-boilerplate.h"
+#include "../src/cairo-time-private.h"
 #include <stdio.h>
 
-typedef uint64_t cairo_perf_ticks_t;
+typedef cairo_time_t cairo_perf_ticks_t;
 
 typedef struct _cairo_stats {
     cairo_perf_ticks_t min_ticks;
diff --git a/perf/cairo-stats.c b/perf/cairo-stats.c
index fbe16e79..5273c60a 100644
--- a/perf/cairo-stats.c
+++ b/perf/cairo-stats.c
@@ -25,26 +25,13 @@
 
 #include "cairo-stats.h"
 
-static int
-_cairo_perf_ticks_cmp (const void *_a,
-		       const void *_b)
-{
-    const cairo_perf_ticks_t *a = _a;
-    const cairo_perf_ticks_t *b = _b;
-
-    if (*a > *b)
-	return 1;
-    if (*a < *b)
-	return -1;
-    return 0;
-}
-
 void
 _cairo_stats_compute (cairo_stats_t	 *stats,
 		      cairo_perf_ticks_t *values,
 		      int		  num_values)
 {
     int i;
+    cairo_time_t sumtime;
     double sum, mean, delta, q1, q3, iqr;
     double outlier_min, outlier_max;
     int min_valid, num_valid;
@@ -60,41 +47,46 @@ _cairo_stats_compute (cairo_stats_t	 *stats,
      * Q1).
      */
     qsort (values, num_values,
-	   sizeof (cairo_perf_ticks_t), _cairo_perf_ticks_cmp);
+	   sizeof (cairo_perf_ticks_t), _cairo_time_cmp);
 
-    q1		= values[(1*num_values)/4];
-    q3		= values[(3*num_values)/4];
+    q1 = _cairo_time_to_s (values[(1*num_values)/4]);
+    q3 = _cairo_time_to_s (values[(3*num_values)/4]);
 
     iqr = q3 - q1;
 
-    outlier_min = q1 - 1.5 * iqr;
-    outlier_max = q3 + 1.5 * iqr;
+    outlier_min = _cairo_time_from_s (q1 - 1.5 * iqr);
+    outlier_max = _cairo_time_from_s (q3 + 1.5 * iqr);
 
     min_valid = 0;
-    while (min_valid < num_values && values[min_valid] < outlier_min)
+    while (min_valid < num_values &&
+	   _cairo_time_to_s (values[min_valid]) < outlier_min)
+    {
 	min_valid++;
+    }
 
     i = min_valid;
     num_valid = 0;
-    while (i + num_valid < num_values && values[i+num_valid] <= outlier_max)
+    while (i + num_valid < num_values &&
+	   _cairo_time_to_s (values[i+num_valid]) <= outlier_max)
+    {
 	num_valid++;
+    }
 
     stats->iterations = num_valid;
     stats->min_ticks = values[min_valid];
 
-    sum = 0.0;
+    sumtime = _cairo_time_from_s (0);
     for (i = min_valid; i < min_valid + num_valid; i++) {
-	sum += values[i];
-	if (values[i] < stats->min_ticks)
-	    stats->min_ticks = values[i];
+	sumtime = _cairo_time_add (sumtime, values[i]);
+	stats->min_ticks = _cairo_time_min (stats->min_ticks, values[i]);
     }
 
-    mean = sum / num_valid;
+    mean = _cairo_time_to_s (sumtime) / num_valid;
     stats->median_ticks = values[min_valid + num_valid / 2];
 
     sum = 0.0;
     for (i = min_valid; i < min_valid + num_valid; i++) {
-	delta = values[i] - mean;
+	delta = _cairo_time_to_s (values[i]) - mean;
 	sum += delta * delta;
     }