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#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
void
randomize_color(cairo_t *cr)
{
double red, green, blue, alpha;
red = (double)rand()/RAND_MAX;
green = (double)rand()/RAND_MAX;
blue = (double)rand()/RAND_MAX;
alpha = (double)rand()/RAND_MAX;
cairo_set_source_rgba (cr, red, green, blue, alpha);
}
int
main(int argc, char *argv[]) {
int i;
int loops = 128*1024;
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 800, 80);
cairo_surface_t *image;
cairo_t *cr = cairo_create (surface);
srand(0xdeadbeef);
image = cairo_image_surface_create_from_png ("../data/romedalen.png");
cairo_set_source_surface (cr, image, 0, 0);
while (loops--) {
cairo_paint (cr);
}
cairo_destroy (cr);
cairo_surface_write_to_png (surface, "image.png");
cairo_surface_destroy (surface);
cairo_surface_destroy (image);
return 0;
}
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