/* 
 * Linux VeeJay
 *
 * Copyright(C)2002 Niels Elburg <elburg@hio.hen.nl>
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307 , USA.
 */
#include <config.h>
#include <stdint.h>
#include <stdio.h>
#include <libvjmem/vjmem.h>
#include "mask.h"


vj_effect *simplemask_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);	/* default values */
    ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params);	/* min */
    ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params);	/* max */
    ve->limits[0][0] = 0;
    ve->limits[1][0] = 255;
    ve->limits[0][1] = 0;
    ve->limits[1][1] = 1;
    ve->defaults[0] = 128;
    ve->defaults[1] = 0;
    ve->description = "Binary Threshold Mask";
    ve->sub_format = 1;
    ve->extra_frame = 1;
	ve->has_user =0;
	ve->param_description = vje_build_param_list( ve->num_params, "Threshold", "Mode" );
	   return ve;
}


void mask_replace_black(uint8_t *yuv1[3], uint8_t *yuv2[3], int w, int h, int threshold) {
  unsigned int len = w * h;
  unsigned int i=0;
  for(i=0; i < len; i++) {
    if (yuv1[0][i] > threshold) {
      yuv1[0][i] = yuv2[0][i];
      yuv1[1][i] = yuv2[1][i];
      yuv1[2][i] = yuv2[2][i];
    } 
  }
}
void mask_replace_black_fill(uint8_t *yuv1[3], uint8_t *yuv2[3], int w, int h, int threshold) {
  unsigned int len = w * h;
  unsigned int i=0;
  for(i=0; i < len; i++) {
    if (yuv1[0][i] > threshold) {
      yuv1[0][i] = yuv2[0][i];
      yuv1[1][i] = yuv2[1][i];
      yuv1[2][i] = yuv2[2][i];
    } 
    else {
      yuv1[0][i] = 16;
      yuv1[1][i] = 128;
      yuv1[2][i] = 128;
    }
  }
}

void simplemask_apply( VJFrame *frame, VJFrame *frame2, int width,
		   int height, int threshold, int invert)
{
  
    switch(invert) {
     case 0 : mask_replace_black(frame->data,frame2->data,width,height,threshold); break;
     case 1 : mask_replace_black_fill(frame->data,frame2->data,width,height,threshold); break;
    }  

}
void mask_free(){}