/*
 *   Pure Data Packet module.
 *   Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
 *
 *   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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>

#include "pdp.h"

typedef struct pdp_artkp
{
    t_object x_obj;
    t_float x_f;

    t_outlet *x_outlet0;
    int x_packet0;
    int x_packet1;
    int x_dropped;
    int x_queue_id;

    int x_width;
    int x_height;
    int x_size;

} t_pdp_artkp;



static void pdp_artkp_process_rgb(t_pdp_artkp *x)
{
  t_pdp     *header = pdp_packet_header(x->x_packet0);
  short int *data   = (short int *)pdp_packet_data(x->x_packet0);
  t_pdp     *newheader = pdp_packet_header(x->x_packet1);
  short int *newdata = (short int *)pdp_packet_data(x->x_packet1); 
  int i;

    if ((x->x_width != (t_int)header->info.image.width) || 
        (x->x_height != (t_int)header->info.image.height)) 
    {

      post("pdp_artkp :: resizing plugins");
  
      x->x_width = header->info.image.width;
      x->x_height = header->info.image.height;
      x->x_size = x->x_width*x->x_height;
    }
    
    newheader->info.image.encoding = header->info.image.encoding;
    newheader->info.image.width = x->x_width;
    newheader->info.image.height = x->x_height;

    memcpy( newdata, data, x->x_size*3 );
    return;
}


static void pdp_artkp_sendpacket(t_pdp_artkp *x)
{
    /* release the packet */
    pdp_packet_mark_unused(x->x_packet0);
    x->x_packet0 = -1;

    /* unregister and propagate if valid dest packet */
    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
}

static void pdp_artkp_process(t_pdp_artkp *x)
{
  int encoding;
  t_pdp *header = 0;

  /* check if image data packets are compatible */
  if ( (header = pdp_packet_header(x->x_packet0))
  && (PDP_BITMAP == header->type)){
    
  /* pdp_artkp_process inputs and write into active inlet */
  switch(pdp_packet_header(x->x_packet0)->info.image.encoding){

   case PDP_BITMAP_RGB:
            x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
            pdp_queue_add(x, (void*)pdp_artkp_process_rgb, (void*)pdp_artkp_sendpacket, &x->x_queue_id);
      break;

   default:
      /* don't know the type, so dont pdp_artkp_process */
      break;
      
   }
  }

}

static void pdp_artkp_input_0(t_pdp_artkp *x, t_symbol *s, t_floatarg f)
{
    /* if this is a register_ro message or register_rw message, register with packet factory */

    if (s == gensym("register_rw")) 
       x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym((char*)"bitmap/rgb/*") );

    if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped))
    {
        /* add the process method and callback to the process queue */
        pdp_artkp_process(x);
    }
}

static void pdp_artkp_free(t_pdp_artkp *x)
{
  int i;

    pdp_queue_finish(x->x_queue_id);
    pdp_packet_mark_unused(x->x_packet0);
    
}

t_class *pdp_artkp_class;

void *pdp_artkp_new(t_floatarg f)
{
  int i;

    t_pdp_artkp *x = (t_pdp_artkp *)pd_new(pdp_artkp_class);

    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 

    x->x_packet0 = -1;
    x->x_packet1 = -1;
    x->x_queue_id = -1;

    x->x_width  = 320;
    x->x_height = 240;
    x->x_size   = x->x_width * x->x_height;

    return (void *)x;
}


#ifdef __cplusplus
extern "C"
{
#endif


void pdp_artkp_setup(void)
{

    pdp_artkp_class = class_new(gensym("pdp_artkp"), (t_newmethod)pdp_artkp_new,
      (t_method)pdp_artkp_free, sizeof(t_pdp_artkp), 0, A_DEFFLOAT, A_NULL);

    class_addmethod(pdp_artkp_class, (t_method)pdp_artkp_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);

}

#ifdef __cplusplus
}
#endif