diff options
Diffstat (limited to 'modules/pdp_vertigo.c')
| -rw-r--r-- | modules/pdp_vertigo.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/modules/pdp_vertigo.c b/modules/pdp_vertigo.c new file mode 100644 index 0000000..b6f4e37 --- /dev/null +++ b/modules/pdp_vertigo.c @@ -0,0 +1,349 @@ +/* + * 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 lens effect from effectv + * Originally written by Fukuchi Kentaro & others + * Pd-fication by Yves Degoyon + */ + + + +#include "pdp.h" +#include <math.h> + +static char *pdp_vertigo_version = "pdp_vertigo: version 0.1, port of vertigo from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)"; + +typedef struct pdp_vertigo_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; + short int *x_buffer; + short int *x_current_buffer; + short int *x_alt_buffer; + t_int x_dx; + t_int x_dy; + t_int x_sx; + t_int x_sy; + double x_phase; + double x_phase_increment; + double x_zoomrate; + + +} t_pdp_vertigo; + +static void pdp_vertigo_increment(t_pdp_vertigo *x, t_floatarg fincrement ) +{ + x->x_phase_increment = fincrement; +} + +static void pdp_vertigo_zoomrate(t_pdp_vertigo *x, t_floatarg fzoomrate ) +{ + x->x_zoomrate = (int)fzoomrate; +} + +static void pdp_vertigo_allocate(t_pdp_vertigo *x, t_floatarg fnewsize ) +{ + t_int nsize = (int) fnewsize; + + if ( x->x_buffer ) freebytes( x->x_buffer, 2*((x->x_vsize + (x->x_vsize>>1))<<1) ); + x->x_buffer = (short int *) getbytes( 2*(( nsize + (nsize>>1))<<1) ); + if ( x->x_buffer ) + { + bzero( x->x_buffer, 2*((nsize + (nsize>>1))<<1) ); + x->x_current_buffer = x->x_buffer; + x->x_alt_buffer = x->x_buffer + (nsize + (nsize>>1)); + } + x->x_phase = 0; +} + +static void pdp_vertigo_set_params(t_pdp_vertigo *x) +{ + double vx, vy; + double t; + double X, Y; + double dizz; + + dizz = sin(x->x_phase) * 10 + sin(x->x_phase*1.9+5) * 5; + + X = x->x_vwidth / 2; + Y = x->x_vheight / 2; + t = (X*X + Y*Y) * x->x_zoomrate; + if( x->x_vwidth > x->x_vheight ) + { + if(dizz >= 0) + { + if(dizz > X) dizz = X; + vx = (X*(X-dizz) + Y*Y) / t; + } + else + { + if(dizz < -X) dizz = -X; + vx = (X*(X+dizz) + Y*Y) / t; + } + vy = (dizz*Y) / t; + } + else + { + if(dizz >= 0) + { + if(dizz > Y) dizz = Y; + vx = (X*X + Y*(Y-dizz)) / t; + } + else + { + if(dizz < -Y) dizz = -Y; + vx = (X*X + Y*(Y+dizz)) / t; + } + vy = (dizz*X) / t; + } + x->x_dx = vx * 65536; + x->x_dy = vy * 65536; + x->x_sx = (-vx * X + vy * Y + X + cos(x->x_phase*5) * 2) * 65536; + x->x_sy = (-vx * Y - vy * X + Y + sin(x->x_phase*6) * 2) * 65536; + + x->x_phase += x->x_phase_increment; + if(x->x_phase > 5700000) x->x_phase = 0; +} + + +static void pdp_vertigo_process_yv12(t_pdp_vertigo *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); + + unsigned int totalnbpixels; + unsigned int u_offset; + unsigned int v_offset; + unsigned int totnbpixels; + short int *poy, *pou, *pov, *pny, *pnu, *pnv, *pcy, *pcu, *pcv; + int px, py; + short int v; + int ox, oy; + int i, ninc; + + /* allocate all ressources */ + if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize ) + { + pdp_vertigo_allocate(x, header->info.image.width*header->info.image.height ); + post( "pdp_vertigo : reallocated buffers" ); + } + + x->x_vwidth = header->info.image.width; + x->x_vheight = header->info.image.height; + x->x_vsize = x->x_vwidth*x->x_vheight; + + totalnbpixels = x->x_vsize; + u_offset = x->x_vsize; + v_offset = x->x_vsize + (x->x_vsize>>2); + totnbpixels = x->x_vsize + (x->x_vsize>>1); + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + pdp_vertigo_set_params(x); + + poy = data; + pou = data + x->x_vsize; + pov = data + x->x_vsize + (x->x_vsize>>2); + pcy = x->x_current_buffer; + pcu = x->x_current_buffer + x->x_vsize; + pcv = x->x_current_buffer + x->x_vsize + (x->x_vsize>>2); + pny = x->x_alt_buffer; + pnu = x->x_alt_buffer + x->x_vsize; + pnv = x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2); + ninc=0; + for(py=x->x_vheight; py>0; py--) + { + ox = x->x_sx; + oy = x->x_sy; + for(px=x->x_vwidth; px>0; px--) + { + if ( pny >= ( x->x_alt_buffer + x->x_vsize ) ) + { + post( "pdp_vertigo : abnormal pointer position : pny=%x, start=%x, size=%x ninc=%d px=%d py=%d", + pny, x->x_alt_buffer , x->x_vsize-1, ninc, px, py ); + break; + } + if ( pnu >= ( x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2) ) ) + { + post( "pdp_vertigo : abnormal pointer position : pnu=%x, start=%x, size=%x ninc=%d px=%d py=%d", + pnu, x->x_alt_buffer + x->x_vsize, (x->x_vsize>>2)-1, ninc, px, py ); + break; + } + if ( pnv >= ( x->x_alt_buffer + x->x_vsize + (x->x_vsize>>1) ) ) + { + post( "pdp_vertigo : abnormal pointer position : pnv=%x, start=%x, size=%x ninc=%d px=%d py=%d", + pnv, x->x_alt_buffer + x->x_vsize + (x->x_vsize>>2), (x->x_vsize>>2)-1, ninc, px, py ); + break; + } + i = (oy>>16)*x->x_vwidth + (ox>>16); + if (i<0) i = 0; + if ( i >= (x->x_vsize + (x->x_vsize>>1)) ) i = (x->x_vsize + (x->x_vsize>>1))-1; + v = pcy[i] & 0xffff; + v = (v * 3) + ((*poy++) & 0xffff); + *pny++ = (v>>2); + if ( (((px+1)%2)==0) && (((py+1)%2)==0) ) + { + ninc++; + v = pcu[(i/4)] & 0xffff; + v = (v * 3) + ((*pou++) & 0xffff); + *pnu++ = (v>>2); + v = pcv[(i/4)] & 0xffff; + v = (v * 3) + ((*pov++) & 0xffff); + *pnv++ = (v>>2); + } + ox += x->x_dx; + oy += x->x_dy; + } + x->x_sx -= x->x_dy; + x->x_sy += x->x_dx; + } + + memcpy(newdata, x->x_alt_buffer, (x->x_vsize + (x->x_vsize>>1))<<1); + + poy = x->x_current_buffer; + x->x_current_buffer = x->x_alt_buffer; + x->x_alt_buffer = poy; + + return; +} + +static void pdp_vertigo_sendpacket(t_pdp_vertigo *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_vertigo_process(t_pdp_vertigo *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_vertigo_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_vertigo_process_yv12, pdp_vertigo_sendpacket, &x->x_queue_id); + break; + + case PDP_IMAGE_GREY: + // pdp_vertigo_process_packet(x); + break; + + default: + /* don't know the type, so dont pdp_vertigo_process */ + break; + + } + } +} + +static void pdp_vertigo_input_0(t_pdp_vertigo *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_vertigo_process(x); + } +} + +static void pdp_vertigo_free(t_pdp_vertigo *x) +{ + int i; + + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + + if ( x->x_buffer ) freebytes( x->x_buffer, 2*((x->x_vsize + (x->x_vsize>>1))<<1) ); +} + +t_class *pdp_vertigo_class; + +void *pdp_vertigo_new(void) +{ + int i; + + t_pdp_vertigo *x = (t_pdp_vertigo *)pd_new(pdp_vertigo_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("increment")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("zoomrate")); + + 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_phase = 0; + x->x_buffer = NULL; + x->x_phase_increment = 0.02; + x->x_zoomrate = 1.01; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_vertigo_setup(void) +{ +// post( pdp_vertigo_version ); + pdp_vertigo_class = class_new(gensym("pdp_vertigo"), (t_newmethod)pdp_vertigo_new, + (t_method)pdp_vertigo_free, sizeof(t_pdp_vertigo), 0, A_NULL); + + class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_increment, gensym("increment"), A_FLOAT, A_NULL); + class_addmethod(pdp_vertigo_class, (t_method)pdp_vertigo_zoomrate, gensym("zoomrate"), A_FLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif |