/* veejay - Linux VeeJay
 * 	     (C) 2002-2004 Niels Elburg <nelburg@looze.net> 
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <config.h>
#include <stdint.h>
#include <stdio.h>
#include <libvjmem/vjmem.h>
#include "wipe.h"
#include "transop.h"

vj_effect *wipe_init(int w,int h)
{
    vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
    ve->num_params = 2;
    ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params);
    ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params);
    ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params);
    ve->defaults[0] = 150;
    ve->defaults[1] = 0;

    ve->limits[0][0] = 0;
    ve->limits[1][0] = 255;
    ve->limits[0][1] = 0;
    ve->limits[1][1] = 25;
    ve->description = "Transition Wipe";
    ve->sub_format = 0;
    ve->extra_frame = 1;
	ve->has_user = 0;
	ve->param_description = vje_build_param_list(ve->num_params, "Opacity", "Increment" );
    return ve;

}
// FIXME private

static int g_wipe_width = 0;
static int g_wipe_height = 0;
void wipe_apply( VJFrame *frame, VJFrame *frame2,
		int w, int h, int opacity, int inc)
{
    /* w, h increasen */
    transop_apply(frame, frame2, g_wipe_width, g_wipe_height, 0, 0, 0, 0, w,
		  h, opacity);
    g_wipe_width += inc;
    g_wipe_height += ((w / h) - 0.5 + inc);

    if (g_wipe_width > w || g_wipe_height > h) {
	g_wipe_width = 0;
	g_wipe_height = 0;
    }
}
void wipe_free(){}