/*
* PiDiP module
* Copyright (c) by Yves Degoyon (ydegoyon@free.fr)
*
* 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.
*
*/
/* This object is a port of dice effect from EffecTV
* Originally written by clifford smith <nullset@dookie.net>
* Pd-fication by Yves Degoyon ( ydegoyon@free.fr )
*/
#include "pdp.h"
#include <math.h>
#define DEFAULT_CUBE_BITS 4
#define MAX_CUBE_BITS 5
#define MIN_CUBE_BITS 0
typedef enum _pdp_dice_dir {
up = 0,
right = 1,
down = 2,
left = 3
} t_pdp_dice_dir;
static unsigned int fastrand_val;
#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345)
static char *pdp_dice_version = "pdp_dice: version 0.1, port of dice from EffecTV by clifford smith, adapted by ydegoyon@free.fr ";
typedef struct pdp_dice_struct
{
t_object x_obj;
t_float x_f;
int x_packet0;
int x_packet1;
int x_dropped;
int x_queue_id;
t_outlet *x_outlet0;
int x_vwidth;
int x_vheight;
int x_vsize;
char *x_dicemap;
int x_cube_bits;
int x_cube_size;
int x_map_height;
int x_map_width;
} t_pdp_dice;
static void pdp_dice_create_map(t_pdp_dice *x)
{
int px, py, i;
if ( x->x_dicemap == NULL )
{
post( "pdp_dice : tried to create map but it's not allocated" );
return;
}
x->x_map_height = x->x_vheight >> x->x_cube_bits;
x->x_map_width = x->x_vwidth >> x->x_cube_bits;
x->x_cube_size = 1 << x->x_cube_bits;
i = 0;
for (py=0; py<x->x_map_height; py++)
{
for(px=0; px<x->x_map_width; px++)
{
x->x_dicemap[i] = (inline_fastrand() >> 24) & 0x03;
i++;
}
}
return;
}
static void pdp_dice_cubebits(t_pdp_dice *x, t_floatarg fcubebits )
{
if ( ( fcubebits >= MIN_CUBE_BITS ) || ( fcubebits <= MAX_CUBE_BITS ) )
{
x->x_cube_bits = fcubebits;
pdp_dice_create_map(x);
}
}
static void pdp_dice_free_ressources(t_pdp_dice *x)
{
if ( x->x_dicemap ) freebytes( x->x_dicemap, x->x_vsize );
}
static void pdp_dice_allocate(t_pdp_dice *x)
{
x->x_dicemap = (char *) getbytes( x->x_vsize );
}
static void pdp_dice_process_yv12(t_pdp_dice *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, iuv;
int mapx, mapy, mapi;
int base, baseuv, dx, dy, di, diuv;
/* allocate all ressources */
if ( ((int)header->info.image.width != x->x_vwidth) ||
((int)header->info.image.height != x->x_vheight) )
{
pdp_dice_free_ressources(x);
x->x_vwidth = header->info.image.width;
x->x_vheight = header->info.image.height;
x->x_vsize = x->x_vwidth*x->x_vheight;
pdp_dice_allocate(x);
post( "pdp_dice : reallocated buffers" );
pdp_dice_create_map(x);
post( "pdp_dice : initialized map" );
}
newheader->info.image.encoding = header->info.image.encoding;
newheader->info.image.width = x->x_vwidth;
newheader->info.image.height = x->x_vheight;
mapi = 0;
for(mapy = 0; mapy < x->x_map_height; mapy++)
{
for(mapx = 0; mapx < x->x_map_width; mapx++)
{
base = (mapy << x->x_cube_bits) * x->x_vwidth + (mapx << x->x_cube_bits);
baseuv = (((mapy << x->x_cube_bits)>>1) * (x->x_vwidth>>1)) + ((mapx << x->x_cube_bits)>>1);
switch (x->x_dicemap[mapi])
{
case up:
for (dy = 0; dy < x->x_cube_size; dy++)
{
i = base + dy * x->x_vwidth;
iuv = baseuv + ((dy>>1) * (x->x_vwidth>>1));
for (dx = 0; dx < x->x_cube_size; dx++)
{
newdata[i] = data[i];
newdata[x->x_vsize+iuv] = data[x->x_vsize+iuv];
newdata[x->x_vsize+(x->x_vsize>>2)+iuv] = data[x->x_vsize+(x->x_vsize>>2)+iuv];
i++;
if ( (dx%2==0) && (dy%2==0) ) iuv++;
}
}
break;
case left:
for (dy = 0; dy < x->x_cube_size; dy++)
{
i = base + dy * x->x_vwidth;
iuv = baseuv + ((dy>>1) * (x->x_vwidth>>1));
for (dx = 0; dx < x->x_cube_size; dx++)
{
di = base + (dx * x->x_vwidth) + (x->x_cube_size - dy - 1);
diuv = baseuv + ((dx>>1) * (x->x_vwidth>>1)) + ((x->x_cube_size - dy - 1)>>1);
newdata[di] = data[i];
newdata[x->x_vsize+diuv] = data[x->x_vsize+iuv];
newdata[x->x_vsize+(x->x_vsize>>2)+diuv] = data[x->x_vsize+(x->x_vsize>>2)+iuv];
i++;
if ( (dx%2==0) && (dy%2==0) ) iuv++;
}
}
break;
case down:
for (dy = 0; dy < x->x_cube_size; dy++)
{
di = base + dy * x->x_vwidth;
diuv = baseuv + ((dy>>1) * (x->x_vwidth>>1));
i = base + (x->x_cube_size - dy - 1) * x->x_vwidth + x->x_cube_size;
iuv = baseuv + (((x->x_cube_size - dy - 1)>>1) * (x->x_vwidth>>1)) + (x->x_cube_size>>1);
for (dx = 0; dx < x->x_cube_size; dx++)
{
i--;
if ( dx%2==0) iuv--;
newdata[di] = data[i];
newdata[x->x_vsize+diuv] = data[x->x_vsize+iuv];
newdata[x->x_vsize+(x->x_vsize>>2)+diuv] = data[x->x_vsize+(x->x_vsize>>2)+iuv];
di++;
if ( (dx%2==0) && (dy%2==0) ) iuv++;
}
}
break;
case right:
for (dy = 0; dy < x->x_cube_size; dy++)
{
i = base + (dy * x->x_vwidth);
iuv = baseuv + ((dy>>1) * (x->x_vwidth>>1));
for (dx = 0; dx < x->x_cube_size; dx++)
{
di = base + dy + (x->x_cube_size - dx - 1) * x->x_vwidth;
diuv = baseuv + (dy>>1) + (((x->x_cube_size - dx - 1)>>1) * (x->x_vwidth>>1));
newdata[di] = data[i];
newdata[x->x_vsize+diuv] = data[x->x_vsize+iuv];
newdata[x->x_vsize+(x->x_vsize>>2)+diuv] = data[x->x_vsize+(x->x_vsize>>2)+iuv];
i++;
if ( (dx%2==0) && (dy%2==0) ) iuv++;
}
}
break;
default:
break;
}
mapi++;
}
}
return;
}
static void pdp_dice_sendpacket(t_pdp_dice *x)
{
/* delete source 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_dice_process(t_pdp_dice *x)
{
int encoding;
t_pdp *header = 0;
/* check if image data packets are compatible */
if ( (header = pdp_packet_header(x->x_packet0))
&& (PDP_IMAGE == header->type)){
/* pdp_dice_process inputs and write into active inlet */
switch(pdp_packet_header(x->x_packet0)->info.image.encoding)
{
case PDP_IMAGE_YV12:
x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
pdp_queue_add(x, pdp_dice_process_yv12, pdp_dice_sendpacket, &x->x_queue_id);
break;
case PDP_IMAGE_GREY:
// should write something to handle these one day
// but i don't use this mode
break;
default:
/* don't know the type, so dont pdp_dice_process */
break;
}
}
}
static void pdp_dice_input_0(t_pdp_dice *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("image/YCrCb/*") );
if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){
/* add the process method and callback to the process queue */
pdp_dice_process(x);
}
}
static void pdp_dice_free(t_pdp_dice *x)
{
int i;
pdp_dice_free_ressources(x);
pdp_queue_finish(x->x_queue_id);
pdp_packet_mark_unused(x->x_packet0);
}
t_class *pdp_dice_class;
void *pdp_dice_new(void)
{
int i;
t_pdp_dice *x = (t_pdp_dice *)pd_new(pdp_dice_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cubebits"));
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_cube_bits = DEFAULT_CUBE_BITS;
x->x_cube_size = 0;
x->x_map_height = 0;
x->x_map_width = 0;
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_dice_setup(void)
{
// post( pdp_dice_version );
pdp_dice_class = class_new(gensym("pdp_dice"), (t_newmethod)pdp_dice_new,
(t_method)pdp_dice_free, sizeof(t_pdp_dice), 0, A_NULL);
class_addmethod(pdp_dice_class, (t_method)pdp_dice_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
class_addmethod(pdp_dice_class, (t_method)pdp_dice_cubebits, gensym("cubebits"), A_DEFFLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif