libcaca/test/bench.c

/*
 *  libcaca benchmark program
 *  Copyright (c) 2009 Pascal Terjan <pterjan@linuxfr.org>
 *                2009 Sam Hocevar <sam@hocevar.net>
 *
 *  This library is free software. It comes without any warranty, to
 *  the extent permitted by applicable law. You can redistribute it
 *  and/or modify it under the terms of the Do What the Fuck You Want
 *  to Public License, Version 2, as published by Sam Hocevar. See
 *  http://www.wtfpl.net/ for more details.
 */

#include "config.h"

#include <stdio.h>

#include "caca.h"

#define BLIT_LOOPS 1000000
#define PUTCHAR_LOOPS 50000000

#define TIME(desc, code) \
{ \
    caca_display_t *dummy = caca_create_display_with_driver(NULL, "null"); \
    printf("%-25s: ", desc);\
    caca_refresh_display(dummy); \
    code; \
    caca_refresh_display(dummy); \
    printf("%5dms\n", caca_get_display_time(dummy) / 1000); \
    caca_free_display(dummy); \
}

static void blit(int mask, int clear)
{
    caca_canvas_t *cv, *cv2;
    int i;
    cv = caca_create_canvas(40, 40);
    cv2 = caca_create_canvas(16, 16);
    caca_fill_box(cv2, 0, 0, 16, 16, 'x');
    for (i = 0; i < BLIT_LOOPS; i++)
    {
        if(clear)
            caca_clear_canvas(cv);
        caca_blit(cv, 1, 1, cv2, mask ? cv2 : NULL);
    }
    caca_free_canvas(cv);
    caca_free_canvas(cv2);
}

static void putchars(int optim)
{
    caca_canvas_t *cv;
    int i;
    cv = caca_create_canvas(40, 40);
    if(optim)
        caca_disable_dirty_rect(cv);
    for (i = 0; i < PUTCHAR_LOOPS; i++)
    {
        caca_put_char(cv, 1, 1, 'x');
        caca_put_char(cv, 1, 1, 'o');
    }
    if(optim)
    {
        caca_enable_dirty_rect(cv);
        caca_add_dirty_rect(cv, 1, 1, 1, 1);
    }
    caca_free_canvas(cv);
}

int main(int argc, char *argv[])
{
    TIME("blit no mask, no clear", blit(0, 0));
    TIME("blit no mask, clear", blit(0, 1));
    TIME("blit mask, no clear", blit(1, 0));
    TIME("blit mask, clear", blit(1, 1));
    TIME("putchars, no optim", putchars(0));
    TIME("putchars, optim", putchars(1));
    return 0;
}