/* * 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 * Chris Wilson */ #include "cairo-perf.h" #include #include #include #include #include #include #include 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) #define MAX(a,b) ((a) > (b) ? (a) : (b)) 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 ("\n"); printf (""); for (i = 0; i < chart->num_reports; i++) { printf ("", chart->names[i] ? chart->names[i] : ""); } printf ("\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 ("", 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 ("", report_time/1000); } else { printf ("", report_time/1000); } } else { printf (""); } } 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 ("\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 ("
%s
%s%.1f%.1f
\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); } } 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 { 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; }