From c5e843b82205c04c618a423d3bb223f1f630b7a1 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 11 Aug 2003 04:26:00 +0000 Subject: added sources from pidip-0.12.4 svn path=/trunk/externals/pidip/; revision=837 --- modules/pdp_shagadelic.c | 307 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 307 insertions(+) create mode 100644 modules/pdp_shagadelic.c (limited to 'modules/pdp_shagadelic.c') diff --git a/modules/pdp_shagadelic.c b/modules/pdp_shagadelic.c new file mode 100644 index 0000000..dd24e03 --- /dev/null +++ b/modules/pdp_shagadelic.c @@ -0,0 +1,307 @@ +/* + * 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 shagadelic effect from EffecTV + * Originally written by Fukuchi Kentaro + * Pd-fication by Yves Degoyon ( ydegoyon@free.fr ) + */ + + +#include "pdp.h" +#include + +#define MAX_TABLES 6 +static unsigned int fastrand_val; +#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345) + +static char *pdp_shagadelic_version = "pdp_shagadelic: version 0.1, port of cycle from EffecTV by clifford smith, adapted by ydegoyon@free.fr "; + +typedef struct pdp_shagadelic_struct +{ + t_object x_obj; + t_float x_f; + + t_int x_packet0; + t_int x_packet1; + t_int x_dropped; + t_int x_queue_id; + + t_outlet *x_outlet0; + t_int x_vwidth; + t_int x_vheight; + t_int x_vsize; + + /* shagadelic parameters */ + char *x_ripple; + char *x_spiral; + unsigned char x_phase; + t_int x_rx, x_ry; + t_int x_bx, x_by; + t_int x_rvx, x_rvy; + t_int x_bvx, x_bvy; + short int x_mask; + +} t_pdp_shagadelic; + +static void pdp_shagadelic_mask(t_pdp_shagadelic *x, t_floatarg fmask ) +{ + if ( ( fmask >= 0 ) || ( fmask < 65536 ) ) + { + x->x_mask = fmask; + } +} + +static int pdp_shagadelic_map_from_table(t_pdp_shagadelic *x, t_int px, t_int py, t_int t) +{ + int xd,yd; + + yd = py + (inline_fastrand() >> 30)-2; + xd = px + (inline_fastrand() >> 30)-2; + if (xd > x->x_vwidth) { + xd-=1; + } + return (xd+yd*x->x_vwidth); +} + +static void pdp_shagadelic_init_tables(t_pdp_shagadelic *x) +{ + t_int px, py, i; + double xx, yy; + + i = 0; + for(py=0; pyx_vheight*2; py++) + { + yy = py - x->x_vheight; + yy *= yy; + for(px=0; pxx_vwidth*2; px++) + { + xx = px - x->x_vwidth; + x->x_ripple[i++] = ((unsigned int)(sqrt(xx*xx+yy)*8))&255; + } + } + i = 0; + for(py=0; pyx_vheight; py++) + { + yy = py - x->x_vheight/2; + for(px=0; pxx_vwidth; px++) + { + xx = px - x->x_vwidth/2; + x->x_spiral[i++] = ((unsigned int) ((atan2(xx, yy)/M_PI*256*9) + (sqrt(xx*xx+yy*yy)*5)))&255; + } + } + + x->x_rx = inline_fastrand()%x->x_vwidth; + x->x_ry = inline_fastrand()%x->x_vheight; + x->x_bx = inline_fastrand()%x->x_vwidth; + x->x_by = inline_fastrand()%x->x_vheight; +} + +static void pdp_shagadelic_free_ressources(t_pdp_shagadelic *x) +{ + if (x->x_ripple) freebytes( x->x_ripple, x->x_vsize*4 ); + if (x->x_spiral) freebytes( x->x_spiral, x->x_vsize ); +} + +static void pdp_shagadelic_allocate(t_pdp_shagadelic *x) +{ + x->x_ripple = (char *) getbytes( x->x_vsize*4 ); + x->x_spiral = (char *) getbytes( x->x_vsize ); +} + +static void pdp_shagadelic_process_yv12(t_pdp_shagadelic *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); + t_int i; + t_int px, py; + unsigned char y, u, v; + char *p_y, *p_u, *p_v; + + + /* allocate all ressources */ + if ( ((int)header->info.image.width != x->x_vwidth) || + ((int)header->info.image.height != x->x_vheight) ) + { + pdp_shagadelic_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_shagadelic_allocate(x); + post( "pdp_shagadelic : reallocated buffers" ); + pdp_shagadelic_init_tables(x); + post( "pdp_shagadelic : initialized tables" ); + } + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + p_y = &x->x_ripple[x->x_ry*x->x_vwidth*2 + x->x_rx]; + p_u = x->x_spiral; + p_v = &x->x_ripple[x->x_by*x->x_vwidth*2 + x->x_bx]; + + for(py=0; pyx_vheight; py++) + { + for(px=0; pxx_vwidth; px++) + { + y = (char)(*p_y+x->x_phase*2)>>7; + u = (char)(*p_u+x->x_phase*3)>>7; + v = (char)(*p_v-x->x_phase)>>7; + *(newdata+py*x->x_vwidth+px) = *(data) & (y<<7) & x->x_mask; + *(newdata+x->x_vsize+((py*x->x_vwidth+px)>>2)) = *(data) & ((u-128)<<8) & x->x_mask; + *(newdata+x->x_vsize+(x->x_vsize>>2)+((py*x->x_vwidth+px)>>2)) = *(data) & ((v-128)<<8) & x->x_mask; + p_y++; + p_u++; + p_v++; + data++; + } + p_y += x->x_vwidth; + p_v += x->x_vwidth; + } + + x->x_phase -= 8; + if((x->x_rx+x->x_rvx)<0 || (x->x_rx+x->x_rvx)>=x->x_vwidth) x->x_rvx =-x->x_rvx; + if((x->x_ry+x->x_rvy)<0 || (x->x_ry+x->x_rvy)>=x->x_vheight) x->x_rvy =-x->x_rvy; + if((x->x_bx+x->x_bvx)<0 || (x->x_bx+x->x_bvx)>=x->x_vwidth) x->x_bvx =-x->x_bvx; + if((x->x_by+x->x_bvy)<0 || (x->x_by+x->x_bvy)>=x->x_vheight) x->x_bvy =-x->x_bvy; + + x->x_rx += x->x_rvx; + x->x_ry += x->x_rvy; + x->x_bx += x->x_bvx; + x->x_by += x->x_bvy; + + return; +} + +static void pdp_shagadelic_sendpacket(t_pdp_shagadelic *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_shagadelic_process(t_pdp_shagadelic *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_shagadelic_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_shagadelic_process_yv12, pdp_shagadelic_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_shagadelic_process */ + break; + + } + } + +} + +static void pdp_shagadelic_input_0(t_pdp_shagadelic *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_shagadelic_process(x); + + } + +} + +static void pdp_shagadelic_free(t_pdp_shagadelic *x) +{ + int i; + + pdp_shagadelic_free_ressources(x); + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); +} + +t_class *pdp_shagadelic_class; + +void *pdp_shagadelic_new(void) +{ + int i; + + t_pdp_shagadelic *x = (t_pdp_shagadelic *)pd_new(pdp_shagadelic_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("mask")); + + 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_rvx = -2; + x->x_rvy = -2; + x->x_bvx = 2; + x->x_bvy = 2; + x->x_phase = 0; + x->x_mask = 0xffff; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_shagadelic_setup(void) +{ +// post( pdp_shagadelic_version ); + pdp_shagadelic_class = class_new(gensym("pdp_shagadelic"), (t_newmethod)pdp_shagadelic_new, + (t_method)pdp_shagadelic_free, sizeof(t_pdp_shagadelic), 0, A_NULL); + + class_addmethod(pdp_shagadelic_class, (t_method)pdp_shagadelic_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_shagadelic_class, (t_method)pdp_shagadelic_mask, gensym("mask"), A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1