switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 1113 deletions

diff --git a/libs/cairo-1.16.0/perf/cairo-perf-chart.c b/libs/cairo-1.16.0/perf/cairo-perf-chart.c
deleted file mode 100644
index 738fe5c..0000000
--- a/libs/cairo-1.16.0/perf/cairo-perf-chart.c
+++ /dev/null
@@ -1,1113 +0,0 @@
-/*
- * Copyright © 2006 Red Hat, Inc.
- * Copyright © 2009 Chris Wilson
- *
- * 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
- * copyright holders not be used in advertising or publicity
- * pertaining to distribution of the software without specific,
- * written prior permission. The copyright holders make no
- * representations about the suitability of this software for any
- * purpose.  It is provided "as is" without express or implied
- * warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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: Carl Worth <cworth@cworth.org>
- *	    Chris Wilson <chris@chris-wilson.co.uk>
- */
-
-#include "cairo-perf.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <math.h>
-#include <assert.h>
-
-struct chart {
-    cairo_perf_report_t *reports;
-    const char **names;
-
-    cairo_t *cr;
-    int width, height;
-    int num_tests, num_reports;
-    double min_value, max_value;
-    double *average;
-
-    cairo_bool_t use_html;
-    cairo_bool_t relative;
-};
-struct color {
-    double red, green, blue;
-};
-
-#define FONT_SIZE 12
-#define PAD (4)
-
-static double
-to_factor (double x)
-{
-#if 1
-    if (x > 1.)
-	return (x-1) * 100.;
-    else
-	return (1. - 1./x) * 100.;
-#else
-    return log (x);
-#endif
-}
-
-static int
-_double_cmp (const void *_a,
-	     const void *_b)
-{
-    const double *a = _a;
-    const double *b = _b;
-
-    if (*a > *b)
-	return 1;
-    if (*a < *b)
-	return -1;
-    return 0;
-}
-
-static void
-trim_outliers (double *values,
-	       int     num_values,
-	       double *min,
-	       double *max)
-{
-    double q1, q3, iqr;
-    double outlier_min, outlier_max;
-    int i;
-
-    /* First, identify any outliers, using the definition of "mild
-     * outliers" from:
-     *
-     *		http://en.wikipedia.org/wiki/Outliers
-     *
-     * Which is that outliers are any values less than Q1 - 1.5 * IQR
-     * or greater than Q3 + 1.5 * IQR where Q1 and Q3 are the first
-     * and third quartiles and IQR is the inter-quartile range (Q3 -
-     * Q1).
-     */
-    qsort (values, num_values,
-	   sizeof (double), _double_cmp);
-
-    q1		= values[1*num_values / 6];
-    q3		= values[5*num_values / 6];
-
-    iqr = q3 - q1;
-
-    outlier_min = q1 - 3 * iqr;
-    outlier_max = q3 + 3 * iqr;
-
-    i = 0;
-    while (i < num_values && values[i] < outlier_min)
-	i++;
-    if (i == num_values)
-	return;
-
-    *min = values[i];
-
-    while (i < num_values && values[i] <= outlier_max)
-	i++;
-
-    *max = values[i-1];
-}
-
-static void
-find_ranges (struct chart *chart)
-{
-    test_report_t **tests, *min_test;
-    double *values;
-    int num_values, size_values;
-    double min = 0, max = 0;
-    double test_time;
-    int seen_non_null;
-    int num_tests = 0;
-    double slow_sum = 0, fast_sum = 0, sum;
-    int slow_count = 0, fast_count = 0;
-    int *count;
-    int i;
-
-    num_values = 0;
-    size_values = 64;
-    values = xmalloc (size_values * sizeof (double));
-
-    chart->average = xmalloc(chart->num_reports * sizeof(double));
-    count = xmalloc(chart->num_reports * sizeof(int));
-    for (i = 0; i < chart->num_reports; i++) {
-	chart->average[i] = 0;
-	count[i] = 0;
-    }
-
-    tests = xmalloc (chart->num_reports * sizeof (test_report_t *));
-    for (i = 0; i < chart->num_reports; i++)
-	tests[i] = chart->reports[i].tests;
-
-    while (1) {
-	/* We expect iterations values of 0 when multiple raw reports
-	 * for the same test have been condensed into the stats of the
-	 * first. So we just skip these later reports that have no
-	 * stats. */
-	seen_non_null = 0;
-	for (i = 0; i < chart->num_reports; i++) {
-	    while (tests[i]->name && tests[i]->stats.iterations == 0)
-		tests[i]++;
-	    if (tests[i]->name)
-		seen_non_null++;
-	}
-	if (! seen_non_null)
-	    break;
-
-	num_tests++;
-
-	/* Find the minimum of all current tests, (we have to do this
-	 * in case some reports don't have a particular test). */
-	for (i = 0; i < chart->num_reports; i++) {
-	    if (tests[i]->name) {
-		min_test = tests[i];
-		break;
-	    }
-	}
-	for (++i; i < chart->num_reports; i++) {
-	    if (tests[i]->name && test_report_cmp_name (tests[i], min_test) < 0)
-		min_test = tests[i];
-	}
-
-	test_time = 0;
-	for (i = 0; i < chart->num_reports; i++) {
-	    double report_time = HUGE_VAL;
-
-	    while (tests[i]->name &&
-		   test_report_cmp_name (tests[i], min_test) == 0)
-	    {
-		double time = tests[i]->stats.min_ticks;
-		if (time < report_time) {
-		    time /= tests[i]->stats.ticks_per_ms;
-		    if (time < report_time)
-			report_time = time;
-		}
-		tests[i]++;
-	    }
-
-	    if (report_time != HUGE_VAL) {
-		if (test_time == 0)
-		    test_time = report_time;
-
-		chart->average[i] += report_time / test_time;
-		count[i]++;
-
-		if (chart->relative) {
-		    if (test_time != report_time) {
-			double v = to_factor (test_time / report_time);
-			if (num_values == size_values) {
-			    size_values *= 2;
-			    values = xrealloc (values,
-					       size_values * sizeof (double));
-			}
-			values[num_values++] = v;
-			if (v < min)
-			    min = v;
-			if (v > max)
-			    max = v;
-			if (v > 0)
-			    fast_sum += v/100, fast_count++;
-			else
-			    slow_sum += v/100, slow_count++;
-			sum += v/100;
-			printf ("%s %d: %f\n", min_test->name, num_values, v);
-		    }
-		} else {
-		    if (report_time < min)
-			min = report_time;
-		    if (report_time > max)
-			max = report_time;
-		}
-	    }
-	}
-    }
-
-    for (i = 0; i < chart->num_reports; i++) {
-	if (count[i])
-	    chart->average[i] = count[i] / chart->average[i];
-	else
-	    chart->average[i] = 1.;
-    }
-
-    if (chart->relative)
-	trim_outliers (values, num_values, &min, &max);
-    chart->min_value = min;
-    chart->max_value = max;
-    chart->num_tests = num_tests + !!chart->relative;
-
-    free (values);
-    free (tests);
-    free (count);
-
-    printf ("%d: slow[%d] average: %f, fast[%d] average: %f, %f\n",
-	    num_values, slow_count, slow_sum / slow_count, fast_count, fast_sum / fast_count, sum / num_values);
-}
-
-#define SET_COLOR(C, R, G, B) (C)->red = (R), (C)->green = (G), (C)->blue = (B)
-static void
-hsv_to_rgb (double	  h,
-	    double	  s,
-	    double	  v,
-	    struct color *color)
-{
-    double m, n, f;
-    int i;
-
-    while (h < 0)
-	h += 6.;
-    while (h > 6.)
-	h -= 6.;
-
-    if (s < 0.)
-	s = 0.;
-    if (s > 1.)
-	s = 1.;
-
-    if (v < 0.)
-	v = 0.;
-    if (v > 1.)
-	v = 1.;
-
-    i = floor (h);
-    f = h - i;
-    if ((i & 1) == 0)
-	f = 1 - f;
-
-    m = v * (1 - s);
-    n = v * (1 - s * f);
-    switch(i){
-    default:
-    case 6:
-    case 0: SET_COLOR (color, v, n, m); break;
-    case 1: SET_COLOR (color, n, v, m); break;
-    case 2: SET_COLOR (color, m, v, n); break;
-    case 3: SET_COLOR (color, m, n, v); break;
-    case 4: SET_COLOR (color, n, m, v); break;
-    case 5: SET_COLOR (color, v, m, n); break;
-    }
-}
-
-static void set_report_color (struct chart *chart, int report)
-{
-    struct color color;
-
-    hsv_to_rgb (6. / chart->num_reports * report, .7, .7, &color);
-    cairo_set_source_rgb (chart->cr, color.red, color.green, color.blue);
-}
-
-static void set_report_gradient (struct chart *chart, int report,
-				 double x, double y, double w, double h)
-{
-    struct color color;
-    cairo_pattern_t *p;
-
-    hsv_to_rgb (6. / chart->num_reports * report, .7, .7, &color);
-
-    p = cairo_pattern_create_linear (x, 0, x+w, 0);
-    cairo_pattern_add_color_stop_rgba (p, 0.0,
-				       color.red, color.green, color.blue,
-				       .50);
-    cairo_pattern_add_color_stop_rgba (p, 0.5,
-				       color.red, color.green, color.blue,
-				       .50);
-    cairo_pattern_add_color_stop_rgba (p, 1.0,
-				       color.red, color.green, color.blue,
-				       1.0);
-    cairo_set_source (chart->cr, p);
-    cairo_pattern_destroy (p);
-}
-
-static void
-test_background (struct chart *c,
-		 int	       test)
-{
-    double dx, x;
-
-    dx = c->width / (double) c->num_tests;
-    x = dx * test;
-
-    if (test & 1)
-	cairo_set_source_rgba (c->cr, .2, .2, .2, .2);
-    else
-	cairo_set_source_rgba (c->cr, .8, .8, .8, .2);
-
-    cairo_rectangle (c->cr, floor (x), 0,
-		     floor (dx + x) - floor (x), c->height);
-    cairo_fill (c->cr);
-}
-
-static void
-add_chart (struct chart *c,
-	   int		 test,
-	   int		 report,
-	   double	 value)
-{
-    double dx, dy, x;
-
-    if (fabs (value) < 0.1)
-	return;
-
-    if (c->relative) {
-	cairo_text_extents_t extents;
-	char buf[80];
-	double y;
-
-	dy = (c->height/2. - PAD) / MAX (-c->min_value, c->max_value);
-	/* the first report is always skipped, as it is used as the baseline */
-	dx = c->width / (double) (c->num_tests * c->num_reports);
-	x = dx * (c->num_reports * test + report - .5);
-
-	cairo_rectangle (c->cr,
-			 floor (x), c->height / 2.,
-			 floor (x + dx) - floor (x),
-			 ceil (-dy*value - c->height/2.) + c->height/2.);
-	if (dx < 5) {
-	    set_report_color (c, report);
-	    cairo_fill (c->cr);
-	} else {
-	    set_report_gradient (c, report,
-				 floor (x), c->height / 2.,
-				 floor (x + dx) - floor (x),
-				 ceil (-dy*value - c->height/2.) + c->height/2.);
-
-	    cairo_fill_preserve (c->cr);
-	    cairo_save (c->cr);
-	    cairo_clip_preserve (c->cr);
-	    set_report_color (c, report);
-	    cairo_stroke (c->cr);
-	    cairo_restore (c->cr);
-	}
-
-	/* Skip the label if the difference between the two is less than 0.1% */
-	if (fabs (value) < 0.1)
-		return;
-
-	cairo_save (c->cr);
-	cairo_set_font_size (c->cr, dx - 2);
-
-	if (value < 0) {
-	    sprintf (buf, "%.1f", -value/100 + 1);
-	} else {
-	    sprintf (buf, "%.1f", value/100 + 1);
-	}
-	cairo_text_extents (c->cr, buf, &extents);
-
-	/* will it be clipped? */
-	y = -dy * value;
-	if (y < -c->height/2) {
-	    y = -c->height/2;
-	} else if (y > c->height/2) {
-	    y = c->height/2;
-	}
-
-	if (y < 0) {
-	    if (y > -extents.width - 6)
-		    y -= extents.width + 6;
-	} else {
-	    if (y < extents.width + 6)
-		    y += extents.width + 6;
-	}
-
-	cairo_translate (c->cr,
-			 floor (x) + (floor (x + dx) - floor (x))/2,
-			 floor (y) + c->height/2.);
-	cairo_rotate (c->cr, -M_PI/2);
-	if (y < 0) {
-	    cairo_move_to (c->cr, -extents.x_bearing -extents.width - 4, -extents.y_bearing/2);
-	} else {
-	    cairo_move_to (c->cr, 2, -extents.y_bearing/2);
-	}
-
-	cairo_set_source_rgb (c->cr, .95, .95, .95);
-	cairo_show_text (c->cr, buf);
-	cairo_restore (c->cr);
-    } else {
-	dy = (c->height - PAD) / c->max_value;
-	dx = c->width / (double) (c->num_tests * (c->num_reports+1));
-	x = dx * ((c->num_reports+1) * test + report + .5);
-
-	cairo_rectangle (c->cr,
-			 floor (x), c->height,
-			 floor (x + dx) - floor (x),
-			 floor (c->height - dy*value) - c->height);
-	if (dx < 5) {
-	    set_report_color (c, report);
-	    cairo_fill (c->cr);
-	} else {
-	    set_report_gradient (c, report,
-				 floor (x), c->height,
-				 floor (x + dx) - floor (x),
-				 floor (c->height - dy*value) - c->height);
-	    cairo_fill_preserve (c->cr);
-	    cairo_save (c->cr);
-	    cairo_clip_preserve (c->cr);
-	    set_report_color (c, report);
-	    cairo_stroke (c->cr);
-	    cairo_restore (c->cr);
-	}
-    }
-}
-
-static void
-add_average (struct chart *c,
-	     int		 test,
-	     int		 report,
-	     double	 value)
-{
-    double dx, dy, x;
-    cairo_text_extents_t extents;
-    char buf[80];
-    double y;
-
-    if (fabs (value) < 0.1)
-	return;
-
-    dy = (c->height/2. - PAD) / MAX (-c->min_value, c->max_value);
-    /* the first report is always skipped, as it is used as the baseline */
-    dx = c->width / (double) (c->num_tests * c->num_reports);
-    x = dx * (c->num_reports * test + report - .5);
-
-    cairo_rectangle (c->cr,
-		     floor (x), c->height / 2.,
-		     floor (x + dx) - floor (x),
-		     ceil (-dy*value - c->height/2.) + c->height/2.);
-    if (dx < 5) {
-	set_report_color (c, report);
-	cairo_fill (c->cr);
-    } else {
-	set_report_gradient (c, report,
-			     floor (x), c->height / 2.,
-			     floor (x + dx) - floor (x),
-			     ceil (-dy*value - c->height/2.) + c->height/2.);
-
-	cairo_fill_preserve (c->cr);
-	cairo_save (c->cr);
-	cairo_clip_preserve (c->cr);
-	set_report_color (c, report);
-	cairo_stroke (c->cr);
-	cairo_restore (c->cr);
-    }
-
-    /* Skip the label if the difference between the two is less than 0.1% */
-    if (fabs (value) < 0.1)
-	return;
-
-    cairo_save (c->cr);
-    cairo_set_font_size (c->cr, dx - 2);
-
-    if (value < 0) {
-	sprintf (buf, "%.1f", -value/100 + 1);
-    } else {
-	sprintf (buf, "%.1f", value/100 + 1);
-    }
-    cairo_text_extents (c->cr, buf, &extents);
-
-    /* will it be clipped? */
-    y = -dy * value;
-    if (y < -c->height/2) {
-	y = -c->height/2;
-    } else if (y > c->height/2) {
-	y = c->height/2;
-    }
-
-    if (y < 0) {
-	if (y > -extents.width - 6)
-	    y -= extents.width + 6;
-    } else {
-	if (y < extents.width + 6)
-	    y += extents.width + 6;
-    }
-
-    cairo_translate (c->cr,
-		     floor (x) + (floor (x + dx) - floor (x))/2,
-		     floor (y) + c->height/2.);
-    cairo_rotate (c->cr, -M_PI/2);
-    if (y < 0) {
-	cairo_move_to (c->cr, -extents.x_bearing -extents.width - 4, -extents.y_bearing/2);
-    } else {
-	cairo_move_to (c->cr, 2, -extents.y_bearing/2);
-    }
-
-    cairo_set_source_rgb (c->cr, .95, .95, .95);
-    cairo_show_text (c->cr, buf);
-    cairo_restore (c->cr);
-}
-
-static void
-add_label (struct chart *c,
-	   int		 test,
-	   const char	*label)
-{
-    cairo_text_extents_t extents;
-    double dx, x;
-
-    cairo_save (c->cr);
-    dx = c->width / (double) c->num_tests;
-    if (dx / 2 - PAD < 4)
-	return;
-    cairo_set_font_size (c->cr, dx / 2 - PAD);
-    cairo_text_extents (c->cr, label, &extents);
-
-    cairo_set_source_rgb (c->cr, .5, .5, .5);
-
-    x = (test + .5) * dx;
-    cairo_save (c->cr);
-    cairo_translate (c->cr, x, c->height - PAD / 2);
-    cairo_rotate (c->cr, -M_PI/2);
-    cairo_move_to (c->cr, 0, -extents.y_bearing/2);
-    cairo_show_text (c->cr, label);
-    cairo_restore (c->cr);
-
-    cairo_save (c->cr);
-    cairo_translate (c->cr, x, PAD / 2);
-    cairo_rotate (c->cr, -M_PI/2);
-    cairo_move_to (c->cr, -extents.width, -extents.y_bearing/2);
-    cairo_show_text (c->cr, label);
-    cairo_restore (c->cr);
-
-    cairo_restore (c->cr);
-}
-
-static void
-add_base_line (struct chart *c)
-{
-    double y;
-
-    cairo_save (c->cr);
-    cairo_set_line_width (c->cr, 2.);
-    if (c->relative) {
-	y = c->height / 2.;
-    } else {
-	y = c->height;
-    }
-    cairo_move_to (c->cr, 0, y);
-    cairo_line_to (c->cr, c->width, y);
-    cairo_set_source_rgb (c->cr, 1, 1, 1);
-    cairo_stroke (c->cr);
-    cairo_restore (c->cr);
-}
-
-static void
-add_absolute_lines (struct chart *c)
-{
-    const double dashes[] = { 2, 4 };
-    const double vlog_steps[] = { 10, 5, 4, 3, 2, 1, .5, .4, .3, .2, .1};
-    double v, y, dy;
-    unsigned int i;
-    char buf[80];
-    cairo_text_extents_t extents;
-
-    v = c->max_value / 2.;
-
-    for (i = 0; i < sizeof (vlog_steps) / sizeof (vlog_steps[0]); i++) {
-	double vlog = log (v) / log (vlog_steps[i]);
-	if (vlog > 1) {
-	    v = pow (vlog_steps[i], floor (vlog));
-	    goto done;
-	}
-    }
-    return;
-done:
-
-    dy = (c->height - PAD) / c->max_value;
-
-    cairo_save (c->cr);
-    cairo_set_line_width (c->cr, 1.);
-    cairo_set_dash (c->cr, dashes, sizeof (dashes) / sizeof (dashes[0]), 0);
-
-    i = 0;
-    do {
-	y = c->height - ++i * v * dy;
-	if (y < PAD)
-	    break;
-
-	cairo_set_font_size (c->cr, 8);
-
-	sprintf (buf, "%.0fs", i*v/1000);
-	cairo_text_extents (c->cr, buf, &extents);
-
-	cairo_set_source_rgba (c->cr, .75, 0, 0, .95);
-	cairo_move_to (c->cr, 1-extents.x_bearing, floor (y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	cairo_move_to (c->cr, c->width-extents.width-1, floor (y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	cairo_set_source_rgba (c->cr, .75, 0, 0, .5);
-	cairo_move_to (c->cr,
-		       ceil (extents.width + extents.x_bearing + 2),
-		       floor (y) + .5);
-	cairo_line_to (c->cr,
-		       floor (c->width - (extents.width + extents.x_bearing + 2)),
-		       floor (y) + .5);
-	cairo_stroke (c->cr);
-    } while (1);
-
-    cairo_restore (c->cr);
-}
-
-static void
-add_relative_lines (struct chart *c)
-{
-    const double dashes[] = { 2, 4 };
-    const double v_steps[] = { 10, 5, 1, .5, .1, .05, .01};
-    const int precision_steps[] = { 0, 0, 0, 1, 1, 2, 2};
-    int precision;
-    double v, y, dy, mid;
-    unsigned int i;
-    char buf[80];
-    cairo_text_extents_t extents;
-
-    v = MAX (-c->min_value, c->max_value) / 200;
-
-    for (i = 0; i < sizeof (v_steps) / sizeof (v_steps[0]); i++) {
-	if (v > v_steps[i]) {
-	    v = v_steps[i];
-	    precision = precision_steps[i];
-	    goto done;
-	}
-    }
-    return;
-done:
-
-    mid = c->height/2.;
-    dy = (mid - PAD) / MAX (-c->min_value, c->max_value);
-
-    cairo_save (c->cr);
-    cairo_set_line_width (c->cr, 1.);
-    cairo_set_dash (c->cr, dashes, sizeof (dashes) / sizeof (dashes[0]), 0);
-    cairo_set_font_size (c->cr, 8);
-
-    i = 0;
-    do {
-	y = ++i * v * dy * 100;
-	if (y > mid)
-	    break;
-
-	sprintf (buf, "%.*fx", precision, i*v + 1);
-	cairo_text_extents (c->cr, buf, &extents);
-
-	cairo_set_source_rgba (c->cr, .75, 0, 0, .95);
-	cairo_move_to (c->cr, 1-extents.x_bearing, floor (mid + y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	cairo_move_to (c->cr, c->width-extents.width-1, floor (mid + y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	cairo_set_source_rgba (c->cr, 0, .75, 0, .95);
-	cairo_move_to (c->cr, 1-extents.x_bearing, ceil (mid - y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	cairo_move_to (c->cr, c->width-extents.width-1, ceil (mid - y) - (extents.height/2 + extents.y_bearing) + .5);
-	cairo_show_text (c->cr, buf);
-
-	/* trim the dashes to no obscure the labels */
-	cairo_set_source_rgba (c->cr, .75, 0, 0, .5);
-	cairo_move_to (c->cr,
-		       ceil (extents.width + extents.x_bearing + 2),
-		       floor (mid + y) + .5);
-	cairo_line_to (c->cr,
-		       floor (c->width - (extents.width + 2)),
-		       floor (mid + y) + .5);
-	cairo_stroke (c->cr);
-
-	cairo_set_source_rgba (c->cr, 0, .75, 0, .5);
-	cairo_move_to (c->cr,
-		       ceil (extents.width + extents.x_bearing + 2),
-		       ceil (mid - y) + .5);
-	cairo_line_to (c->cr,
-		       floor (c->width - (extents.width + 2)),
-		       ceil (mid - y) + .5);
-	cairo_stroke (c->cr);
-
-    } while (1);
-
-    cairo_restore (c->cr);
-}
-
-static void
-add_slower_faster_guide (struct chart *c)
-{
-    cairo_text_extents_t extents;
-
-    cairo_save (c->cr);
-
-    cairo_set_font_size (c->cr, FONT_SIZE);
-
-    cairo_text_extents (c->cr, "FASTER", &extents);
-    cairo_set_source_rgba (c->cr, 0, .75, 0, .5);
-    cairo_move_to (c->cr,
-		   c->width/4. - extents.width/2. + extents.x_bearing,
-		   1 - extents.y_bearing);
-    cairo_show_text (c->cr, "FASTER");
-    cairo_move_to (c->cr,
-		   3*c->width/4. - extents.width/2. + extents.x_bearing,
-		   1 - extents.y_bearing);
-    cairo_show_text (c->cr, "FASTER");
-
-    cairo_text_extents (c->cr, "SLOWER", &extents);
-    cairo_set_source_rgba (c->cr, .75, 0, 0, .5);
-    cairo_move_to (c->cr,
-		   c->width/4. - extents.width/2. + extents.x_bearing,
-		   c->height - 1);
-    cairo_show_text (c->cr, "SLOWER");
-    cairo_move_to (c->cr,
-		   3*c->width/4. - extents.width/2. + extents.x_bearing,
-		   c->height - 1);
-    cairo_show_text (c->cr, "SLOWER");
-
-    cairo_restore (c->cr);
-}
-
-static void
-cairo_perf_reports_compare (struct chart *chart,
-			    cairo_bool_t  print)
-{
-    test_report_t **tests, *min_test;
-    double test_time, best_time;
-    int num_test = 0;
-    int seen_non_null;
-    int i;
-
-    tests = xmalloc (chart->num_reports * sizeof (test_report_t *));
-    for (i = 0; i < chart->num_reports; i++)
-	tests[i] = chart->reports[i].tests;
-
-    if (print) {
-	if (chart->use_html) {
-	    printf ("<table style=\"text-align:right\" cellspacing=\"4\">\n");
-	    printf ("<tr><td></td>");
-	    for (i = 0; i < chart->num_reports; i++) {
-		printf ("<td>%s</td>", chart->names[i] ? chart->names[i] : "");
-	    }
-	    printf ("</tr>\n");
-	}
-    }
-
-    while (1) {
-	/* We expect iterations values of 0 when multiple raw reports
-	 * for the same test have been condensed into the stats of the
-	 * first. So we just skip these later reports that have no
-	 * stats. */
-	seen_non_null = 0;
-	for (i = 0; i < chart->num_reports; i++) {
-	    while (tests[i]->name && tests[i]->stats.iterations == 0)
-		tests[i]++;
-	    if (tests[i]->name)
-		seen_non_null++;
-	}
-	if (! seen_non_null)
-	    break;
-
-	/* Find the minimum of all current tests, (we have to do this
-	 * in case some reports don't have a particular test). */
-	for (i = 0; i < chart->num_reports; i++) {
-	    if (tests[i]->name) {
-		min_test = tests[i];
-		break;
-	    }
-	}
-	for (++i; i < chart->num_reports; i++) {
-	    if (tests[i]->name && test_report_cmp_name (tests[i], min_test) < 0)
-		min_test = tests[i];
-	}
-
-	add_label (chart, num_test, min_test->name);
-	if (print) {
-	    if (chart->use_html) {
-		printf ("<tr><td>%s</td>", min_test->name);
-	    } else {
-		if (min_test->size) {
-		    printf ("%16s, size %4d:\n",
-			    min_test->name,
-			    min_test->size);
-		} else {
-		    printf ("%26s:",
-			    min_test->name);
-		}
-	    }
-	}
-
-	test_time = 0;
-	best_time = HUGE_VAL;
-	for (i = 0; i < chart->num_reports; i++) {
-	    test_report_t *initial = tests[i];
-	    double report_time = HUGE_VAL;
-
-	    while (tests[i]->name &&
-		   test_report_cmp_name (tests[i], min_test) == 0)
-	    {
-		double time = tests[i]->stats.min_ticks;
-		if (time < report_time) {
-		    time /= tests[i]->stats.ticks_per_ms;
-		    if (time < report_time)
-			report_time = time;
-		}
-		tests[i]++;
-	    }
-
-	    if (test_time == 0 && report_time != HUGE_VAL)
-		test_time = report_time;
-	    if (report_time < best_time)
-		best_time = report_time;
-
-	    tests[i] = initial;
-	}
-
-	for (i = 0; i < chart->num_reports; i++) {
-	    double report_time = HUGE_VAL;
-
-	    while (tests[i]->name &&
-		   test_report_cmp_name (tests[i], min_test) == 0)
-	    {
-		double time = tests[i]->stats.min_ticks;
-		if (time > 0) {
-		    time /= tests[i]->stats.ticks_per_ms;
-		    if (time < report_time)
-			report_time = time;
-		}
-		tests[i]++;
-	    }
-
-	    if (print) {
-		if (chart->use_html) {
-		    if (report_time < HUGE_VAL) {
-			if (report_time / best_time < 1.01) {
-			    printf ("<td><strong>%.1f</strong></td>", report_time/1000);
-			} else {
-			    printf ("<td>%.1f</td>", report_time/1000);
-			}
-		    } else {
-			printf ("<td></td>");
-		    }
-		} else {
-		    if (report_time < HUGE_VAL)
-			printf (" %6.1f",  report_time/1000);
-		    else
-			printf ("    ---");
-		}
-	    }
-
-	    if (report_time < HUGE_VAL) {
-		if (chart->relative) {
-		    add_chart (chart, num_test, i,
-			       to_factor (test_time / report_time));
-		} else {
-		    add_chart (chart, num_test, i, report_time);
-		}
-	    }
-	}
-
-	if (print) {
-	    if (chart->use_html) {
-		printf ("</tr>\n");
-	    } else {
-		printf ("\n");
-	    }
-	}
-
-	num_test++;
-    }
-    if (chart->relative) {
-	add_label (chart, num_test, "(geometric mean)");
-	for (i = 0; i < chart->num_reports; i++)
-	    add_average (chart, num_test, i, to_factor (chart->average[i]));
-    }
-    free (tests);
-
-    if (print) {
-	if (chart->use_html)
-	    printf ("</table>\n");
-
-	printf ("\n");
-	for (i = 0; i < chart->num_reports; i++) {
-	    if (chart->names[i]) {
-		printf ("[%s] %s\n",
-			chart->names[i], chart->reports[i].configuration);
-	    } else {
-		printf ("[%d] %s\n",
-			i, chart->reports[i].configuration);
-	    }
-	}
-    }
-}
-
-static void
-add_legend (struct chart *chart)
-{
-    cairo_text_extents_t extents;
-    const char *str;
-    int i, x, y;
-
-    cairo_set_font_size (chart->cr, FONT_SIZE);
-
-    x = PAD;
-    y = chart->height + PAD;
-    for (i = chart->relative; i < chart->num_reports; i++) {
-	str = chart->names[i] ?
-	      chart->names[i] : chart->reports[i].configuration;
-
-	set_report_color (chart, i);
-
-	cairo_rectangle (chart->cr, x, y + 6, 8, 8);
-	cairo_fill (chart->cr);
-
-	cairo_set_source_rgb (chart->cr, 1, 1, 1);
-	cairo_move_to (chart->cr, x + 10, y + FONT_SIZE + PAD / 2.);
-	cairo_text_extents (chart->cr, str, &extents);
-	cairo_show_text (chart->cr, str);
-
-	x += 10 + 2 * PAD + ceil (extents.width);
-    }
-
-    if (chart->relative) {
-	char buf[80];
-
-	str = chart->names[0] ?
-	      chart->names[0] : chart->reports[0].configuration;
-
-	sprintf (buf, "(relative to %s)", str);
-	cairo_text_extents (chart->cr, buf, &extents);
-
-	cairo_set_source_rgb (chart->cr, 1, 1, 1);
-	cairo_move_to (chart->cr,
-		       chart->width - 1 - extents.width,
-		       y + FONT_SIZE + PAD / 2.);
-	cairo_show_text (chart->cr, buf);
-    }
-}
-
-static void
-usage (void)
-{
-	printf("Usage:\n");
-	printf("  cairo-perf-chart [OPTION...] <result1> <result2>...<resultN>\n");
-	printf("\n");
-	printf("Help Options:\n");
-	printf("  --help, --?\tShow help options\n");
-	printf("\n");
-	printf("Application Options:\n");
-	printf("  --html\tOutput an HTML table comparing the results\n");
-	printf("  --height=\tSet the height of the output graph"\
-			" (default 480)\n");
-	printf("  --width=\tSet the width of the output graph"\
-			" (default 640)\n");
-	printf("  --name\tSet the name of graph series."\
-			" This only sets the name for the\n\t\tfirst result file."\
-			" The graph series is usually set using the\n\t\tfile name for"\
-			" the results file.\n");
-	printf("\n");
-	printf("Example:\n");
-	printf("  cairo-perf-chart --width=1024 --height=768 run1 run2 run3\n");
-	return;
-}
-
-int
-main (int	  argc,
-      const char *argv[])
-{
-    cairo_surface_t *surface;
-    struct chart chart;
-    test_report_t *t;
-    int i;
-
-    chart.use_html = 0;
-    chart.width = 640;
-    chart.height = 480;
-
-    chart.reports = xcalloc (argc-1, sizeof (cairo_perf_report_t));
-    chart.names = xcalloc (argc-1, sizeof (cairo_perf_report_t));
-
-    chart.num_reports = 0;
-    for (i = 1; i < argc; i++) {
-	if (strcmp (argv[i], "--html") == 0) {
-	    chart.use_html = 1;
-	} else if (strncmp (argv[i], "--width=", 8) == 0) {
-	    chart.width = atoi (argv[i] + 8);
-	} else if (strncmp (argv[i], "--height=", 9) == 0) {
-	    chart.height = atoi (argv[i] + 9);
-	} else if (strcmp (argv[i], "--name") == 0) {
-	    if (i + 1 < argc)
-		chart.names[chart.num_reports] = argv[++i];
-	} else if (strncmp (argv[i], "--name=", 7) == 0) {
-	    chart.names[chart.num_reports] = argv[i] + 7;
-	} else if ((strcmp (argv[i], "--help") == 0) ||
-		(strcmp (argv[i], "--?") == 0)) {
-		usage();
-		return 0;
-	} else {
-	    cairo_perf_report_load (&chart.reports[chart.num_reports++],
-				    argv[i], i,
-				    test_report_cmp_name);
-	}
-    }
-
-    for (chart.relative = 0; chart.relative <= 1; chart.relative++) {
-	surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
-					      chart.width,
-					      chart.height + (FONT_SIZE + PAD) + 2*PAD);
-	chart.cr = cairo_create (surface);
-	cairo_surface_destroy (surface);
-
-	cairo_set_source_rgb (chart.cr, 0, 0, 0);
-	cairo_paint (chart.cr);
-
-	find_ranges (&chart);
-
-	for (i = 0; i < chart.num_tests; i++)
-	    test_background (&chart, i);
-	if (chart.relative) {
-	    add_relative_lines (&chart);
-	    add_slower_faster_guide (&chart);
-	} else
-	    add_absolute_lines (&chart);
-
-	cairo_save (chart.cr);
-	cairo_rectangle (chart.cr, 0, 0, chart.width, chart.height);
-	cairo_clip (chart.cr);
-	cairo_perf_reports_compare (&chart, !chart.relative);
-	cairo_restore (chart.cr);
-
-	add_base_line (&chart);
-	add_legend (&chart);
-
-	cairo_surface_write_to_png (cairo_get_target (chart.cr),
-				    chart.relative ? "relative.png" : "absolute.png");
-	cairo_destroy (chart.cr);
-    }
-
-    /* Pointless memory cleanup, (would be a great place for talloc) */
-    for (i = 0; i < chart.num_reports; i++) {
-	for (t = chart.reports[i].tests; t->name; t++) {
-	    free (t->samples);
-	    free (t->backend);
-	    free (t->name);
-	}
-	free (chart.reports[i].tests);
-	free (chart.reports[i].configuration);
-    }
-    free (chart.names);
-    free (chart.reports);
-
-    return 0;
-}