source: libcaca/trunk/test/hsv.c @ 811 Tweet

/*
 *  hsv           libcaca HSV rendering test program
 *  Copyright (c) 2003 Sam Hocevar <sam@zoy.org>
 *                All Rights Reserved
 *
 *  $Id: hsv.c 811 2006-04-18 15:11:25Z sam $
 *
 *  This program is free software; 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://sam.zoy.org/wtfpl/COPYING for more details.
 */

#include "config.h"

#if defined(HAVE_INTTYPES_H)
#   include <inttypes.h>
#else
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#endif

#include "cucul.h"
#include "caca.h"

uint32_t buffer[256*256];

int main(void)
{
    caca_event_t ev;
    cucul_canvas_t *cv;
    caca_display_t *dp;

    cucul_dither_t *dither;
    int x, y;

    cv = cucul_create(0, 0);
    dp = caca_attach(cv);

    for(y = 0; y < 256; y++)
        for(x = 0; x < 256; x++)
    {
        buffer[y * 256 + x] = ((y * x / 256) << 16) | ((y * x / 256) << 8) | (x<< 0);
    }

    dither = cucul_create_dither(32, 256, 256, 4 * 256,
                                 0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
    cucul_dither_bitmap(cv, 0, 0,
                        cucul_get_width(cv) - 1, cucul_get_height(cv) - 1,
                        dither, buffer);
    cucul_free_dither(dither);

    caca_display(dp);

    caca_get_event(dp, CACA_EVENT_KEY_PRESS, &ev, -1);

    caca_detach(dp);
    cucul_free(cv);

    return 0;
}