pattern_create_radial.c [plain text]
#include <time.h>
#include "cairo-perf.h"
#define RADIALS_COUNT (10000)
static struct
{
double cx0;
double cy0;
double radius0;
double cx1;
double cy1;
double radius1;
} radials[RADIALS_COUNT];
static double
generate_double_in_range (double min, double max)
{
double d;
d = rand () / (double) RAND_MAX;
d *= max - min;
d += min;
return d;
}
static cairo_perf_ticks_t
do_pattern_create_radial (cairo_t *cr, int width, int height, int loops)
{
cairo_perf_timer_start ();
while (loops--) {
cairo_pattern_t *pattern;
int i;
for (i = 0; i < RADIALS_COUNT; i++) {
pattern =
cairo_pattern_create_radial (radials[i].cx0, radials[i].cy0,
radials[i].radius0,
radials[i].cx1, radials[i].cy1,
radials[i].radius1);
cairo_pattern_destroy (pattern);
}
}
cairo_perf_timer_stop ();
return cairo_perf_timer_elapsed ();
}
void
pattern_create_radial (cairo_perf_t *perf, cairo_t *cr, int width, int height)
{
int i;
if (! cairo_perf_can_run (perf, "pattern-create-radial", NULL))
return;
srand (time (0));
for (i = 0; i < RADIALS_COUNT; i++)
{
radials[i].cx0 = generate_double_in_range (-50000.0, 50000.0);
radials[i].cy0 = generate_double_in_range (-50000.0, 50000.0);
radials[i].radius0 = generate_double_in_range (0.0, 1000.0);
radials[i].cx1 = generate_double_in_range (-50000.0, 50000.0);
radials[i].cy1 = generate_double_in_range (-50000.0, 50000.0);
radials[i].radius1 = generate_double_in_range (0.0, 1000.0);
}
cairo_perf_run (perf, "pattern-create-radial",
do_pattern_create_radial, NULL);
}