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Diffstat (limited to 'modules/pdp_nervous.c')
-rw-r--r-- | modules/pdp_nervous.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/modules/pdp_nervous.c b/modules/pdp_nervous.c new file mode 100644 index 0000000..df76821 --- /dev/null +++ b/modules/pdp_nervous.c @@ -0,0 +1,283 @@ +/* + * 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 an adaptation of warp effect from effectv + * Copyright (C) 2002 TANNENBAUM Edo + * Pd-fication by Yves Degoyon + */ + + + +#include "pdp.h" +#include <math.h> + +#define DEFAULT_PLANES 32 + +static int fastrand_val=0; +#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345) + + +static char *pdp_nervous_version = "pdp_nervous: version 0.1, port of nervous from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)"; + +static char* the_wave_table = NULL; + +typedef struct pdp_nervous_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + t_int x_packet0; + t_int x_packet1; + t_int x_dropped; + t_int x_queue_id; + + t_int x_vwidth; + t_int x_vheight; + t_int x_vsize; + t_int x_mode; + short int *x_buffer; + short int **x_planetable; + t_int x_planes; + t_int x_plane; + t_int x_stock; + t_int x_timer; + t_int x_stride; + t_int x_readplane; + +} t_pdp_nervous; + +static void pdp_nervous_mode(t_pdp_nervous *x, t_floatarg fmode ) +{ + if ( ( fmode == 0 ) || ( fmode == 1 ) ) + { + x->x_mode = (int)fmode; + } +} + +static void pdp_nervous_free_ressources(t_pdp_nervous *x) +{ + if ( x->x_buffer ) free ( x->x_buffer ); + if ( x->x_planetable ) free ( x->x_planetable ); +} + +static void pdp_nervous_allocate(t_pdp_nervous *x) +{ + int i; + + // allocate space for the frame buffers. A lot of memory is required - + // with the default settings, it totals nearly 5 megs. + x->x_buffer = (short int *) getbytes ( ( ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ) * 2 * x->x_planes); + x->x_planetable = (short int**) getbytes ( x->x_planes*sizeof(short int*) ); + + // set up the array of pointers to the frame buffers + for(i=0;i<x->x_planes;i++) + { + x->x_planetable[i] = &x->x_buffer[ ( ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ) * i]; + } + + if ( !x->x_buffer ) + { + post( "pdp_nervous : severe error : cannot allocate buffers !!! "); + return; + } +} + +static void pdp_nervous_planes(t_pdp_nervous *x, t_floatarg fplanes ) +{ + if ( ( fplanes > 1 ) && ( fplanes < 100 ) ) + { + pdp_nervous_free_ressources(x); + x->x_planes = (int)fplanes; + x->x_plane = x->x_planes-1; + x->x_readplane = 0; + x->x_stock = 0; + pdp_nervous_allocate(x); + } +} + +static void pdp_nervous_process_yv12(t_pdp_nervous *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; + + /* allocate all ressources */ + if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize ) + { + pdp_nervous_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; + x->x_plane = x->x_planes-1; + pdp_nervous_allocate(x); + post( "pdp_nervous : reallocated buffers" ); + } + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + memcpy(x->x_planetable[x->x_plane], data, ( x->x_vsize + (x->x_vsize>>1) ) << 1 ); + if(x->x_stock < x->x_planes) { + x->x_stock++; + } + + if(x->x_mode) + { + if(x->x_timer) + { + x->x_readplane = x->x_readplane + x->x_stride; + while(x->x_readplane < 0) x->x_readplane += x->x_stock; + while(x->x_readplane >= x->x_stock) x->x_readplane -= x->x_stock; + x->x_timer--; + } + else + { + x->x_readplane = inline_fastrand() % x->x_stock; + if ( x->x_readplane < 0 ) x->x_readplane = 0; + x->x_stride = inline_fastrand() % 5 - 2; + if(x->x_stride >= 0) x->x_stride++; + x->x_timer = inline_fastrand() % 6 + 2; + } + } + else + { + if(x->x_stock > 0) x->x_readplane = ( inline_fastrand() % x->x_stock ); + if ( x->x_readplane < 0 ) x->x_readplane = 0; + } + memcpy(newdata, x->x_planetable[x->x_readplane], ( x->x_vsize + ( x->x_vsize>>1) ) << 1 ); + x->x_plane = ( x->x_plane + 1 ) % x->x_planes; + + return; +} + +static void pdp_nervous_sendpacket(t_pdp_nervous *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_nervous_process(t_pdp_nervous *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_nervous_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_nervous_process_yv12, pdp_nervous_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_nervous_process */ + break; + + } + } +} + +static void pdp_nervous_input_0(t_pdp_nervous *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_nervous_process(x); + } +} + +static void pdp_nervous_free(t_pdp_nervous *x) +{ + int i; + + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + pdp_nervous_free_ressources(x); +} + +t_class *pdp_nervous_class; + +void *pdp_nervous_new(void) +{ + int i; + + t_pdp_nervous *x = (t_pdp_nervous *)pd_new(pdp_nervous_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("planes")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("mode")); + + 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_mode = 0; + x->x_buffer = NULL; + x->x_planes = DEFAULT_PLANES; + x->x_readplane = 0; + x->x_stock = 0; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_nervous_setup(void) +{ +// post( pdp_nervous_version ); + pdp_nervous_class = class_new(gensym("pdp_nervous"), (t_newmethod)pdp_nervous_new, + (t_method)pdp_nervous_free, sizeof(t_pdp_nervous), 0, A_NULL); + + class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_mode, gensym("mode"), A_FLOAT, A_NULL); + class_addmethod(pdp_nervous_class, (t_method)pdp_nervous_planes, gensym("planes"), A_FLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif |