diff options
Diffstat (limited to 'modules/pdp_binary.c')
| -rw-r--r-- | modules/pdp_binary.c | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/modules/pdp_binary.c b/modules/pdp_binary.c new file mode 100644 index 0000000..5ce943c --- /dev/null +++ b/modules/pdp_binary.c @@ -0,0 +1,364 @@ +/* + * 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 image binarizer, based on some (y,u,v) setting + */ + +#include "pdp.h" +#include "yuv.h" +#include <math.h> +#include <stdio.h> + +static char *pdp_binary_version = "pdp_binary: a image binarizer version 0.1 written by Yves Degoyon (ydegoyon@free.fr)"; + +typedef struct pdp_binary_struct +{ + t_object x_obj; + + t_int x_packet0; + t_int x_packet1; + t_int x_queue_id; + t_int x_dropped; + + t_int x_vwidth; + t_int x_vheight; + t_int x_vsize; + t_int x_colorY; // YUV components of binary mask + t_int x_colorU; + t_int x_colorV; + t_int x_cursX; // X position of the cursor + t_int x_cursY; // Y position of the cursor + t_int x_tolerance; // tolerance + short int *x_frame; // keep a copy of current frame for picking color + + t_outlet *x_pdp_output; // output packets + t_outlet *x_Y; // output Y component of selected color + t_outlet *x_U; // output U component of selected color + t_outlet *x_V; // output V component of selected color + +} t_pdp_binary; + +static void pdp_binary_setcur(t_pdp_binary *x, t_floatarg fpx, t_floatarg fpy ) +{ + if ( (fpx>=0.0) && (fpx<=1.0) && (fpy>=0.0) && (fpy<=1.0) ) + { + x->x_cursX = fpx*(t_float)x->x_vwidth; + x->x_cursY = fpy*(t_float)x->x_vheight; + } +} + +static void pdp_binary_y(t_pdp_binary *x, t_floatarg fy ) +{ + if ( fy <= 255. ) + { + x->x_colorY = (t_int)fy; + outlet_float( x->x_Y, x->x_colorY ); + } +} + +static void pdp_binary_u(t_pdp_binary *x, t_floatarg fu ) +{ + if ( fu <= 255. ) + { + x->x_colorU = (t_int)fu; + outlet_float( x->x_U, x->x_colorU ); + } +} + +static void pdp_binary_v(t_pdp_binary *x, t_floatarg fv ) +{ + if ( fv < 255 ) + { + x->x_colorV = (t_int)fv; + outlet_float( x->x_V, x->x_colorV ); + } +} + +static void pdp_binary_cursx(t_pdp_binary *x, t_floatarg fx ) +{ + if ( ( fx >= 0 ) && ( fx < x->x_vwidth) ) + { + x->x_cursX = (int)fx; + } +} + +static void pdp_binary_cursy(t_pdp_binary *x, t_floatarg fy ) +{ + if ( ( fy >= 0 ) && ( fy < x->x_vheight) ) + { + x->x_cursY = (int)fy; + } +} + +static void pdp_binary_tolerance(t_pdp_binary *x, t_floatarg ftolerance ) +{ + if ( ftolerance >= 0 ) + { + x->x_tolerance = (int)ftolerance; + } +} + +static void pdp_binary_pick(t_pdp_binary *x) +{ + if ( x->x_frame && ( x->x_cursX > 0 ) && ( x->x_cursX < x->x_vwidth ) + && ( x->x_cursY > 0 ) && ( x->x_cursY < x->x_vheight ) ) + { + // post( "pdp_binary : picking up color : x=%d y=%d", x->x_cursX, x->x_cursY ); + x->x_colorY = x->x_frame[ x->x_cursY*x->x_vwidth+x->x_cursX ]; + x->x_colorV = x->x_frame[ x->x_vsize + (x->x_cursY>>1)*(x->x_vwidth>>1)+(x->x_cursX>>1) ]; + x->x_colorU = x->x_frame[ x->x_vsize + (x->x_vsize>>2) + (x->x_cursY>>1)*(x->x_vwidth>>1)+(x->x_cursX>>1) ]; + x->x_colorY = (x->x_colorY)>>7; + x->x_colorV = (x->x_colorV>>8)+128; + x->x_colorU = (x->x_colorU>>8)+128; + outlet_float( x->x_Y, x->x_colorY ); + outlet_float( x->x_V, x->x_colorV ); + outlet_float( x->x_U, x->x_colorU ); + } +} + +static void pdp_binary_allocate(t_pdp_binary *x) +{ + x->x_frame = (short int *) getbytes ( ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ); + + if ( !x->x_frame ) + { + post( "pdp_binary : severe error : cannot allocate buffer !!! "); + return; + } +} + +static void pdp_binary_free_ressources(t_pdp_binary *x) +{ + if ( x->x_frame ) freebytes ( x->x_frame, ( x->x_vsize + ( x->x_vsize>>1 ) ) << 1 ); +} + +static void pdp_binary_process_yv12(t_pdp_binary *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=0, py=0; + t_int y=0, u=0, v=0; + short int *pfY, *pfU, *pfV; + t_int diff; + + /* allocate all ressources */ + if ( ( (int)header->info.image.width != x->x_vwidth ) || + ( (int)header->info.image.height != x->x_vheight ) ) + { + pdp_binary_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_binary_allocate( x ); + post( "pdp_binary : reallocated buffers" ); + } + + memcpy(x->x_frame, data, (x->x_vsize + (x->x_vsize>>1))<<1 ); + + // post( "pdp_binary : newheader:%x", newheader ); + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + // binarize + pfY = data; + pfV = data+x->x_vsize; + pfU = data+x->x_vsize+(x->x_vsize>>2); + for ( py=0; py<x->x_vheight; py++ ) + { + for ( px=0; px<x->x_vwidth; px++ ) + { + y = (*pfY)>>7; + v = ((*pfV)>>8)+128; + u = ((*pfU)>>8)+128; + + // post( "pdp_binary : y=%d, u=%d, v=%d", y, u, v ); + + diff = 0; + if ( x->x_colorY >= 0 ) + { + diff += abs(y-x->x_colorY ); + } + if ( x->x_colorV >= 0 ) + { + diff += abs(v-x->x_colorV ); + } + if ( x->x_colorU >=0 ) + { + diff += abs(u-x->x_colorU ); + } + + if ( diff <= x->x_tolerance ) + { + *(newdata+(py*x->x_vwidth+px)) = 0xff<<7; + } + else + { + *(newdata+(py*x->x_vwidth+px)) = 0; + } + + pfY++; + if ( (px%2==0) && (py%2==0) ) + { + pfU++;pfV++; + } + } + } + + memset( newdata+x->x_vsize, 0x0, (x->x_vsize>>1)<<1 ); + + return; +} + +static void pdp_binary_sendpacket(t_pdp_binary *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_pdp_output, &x->x_packet1); +} + +static void pdp_binary_process(t_pdp_binary *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_binary_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_binary_process_yv12, pdp_binary_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_binary_process */ + break; + + } + } + +} + +static void pdp_binary_input_0(t_pdp_binary *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)) + { + pdp_binary_process(x); + } +} + +static void pdp_binary_free(t_pdp_binary *x) +{ + int i; + + pdp_packet_mark_unused(x->x_packet0); + pdp_binary_free_ressources( x ); +} + +t_class *pdp_binary_class; + +void *pdp_binary_new(void) +{ + int i; + + t_pdp_binary *x = (t_pdp_binary *)pd_new(pdp_binary_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("Y")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("U")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("V")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cursx")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("cursy")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("tolerance")); + + x->x_pdp_output = outlet_new(&x->x_obj, &s_anything); + x->x_Y = outlet_new(&x->x_obj, &s_float); + x->x_U = outlet_new(&x->x_obj, &s_float); + x->x_V = outlet_new(&x->x_obj, &s_float); + + x->x_colorY = 200; + x->x_colorU = -1; + x->x_colorV = -1; + + x->x_packet0 = -1; + x->x_packet1 = -1; + + x->x_cursX = -1; + x->x_cursY = -1; + x->x_tolerance = 55; + + x->x_vwidth = -1; + x->x_vheight = -1; + x->x_vsize = -1; + x->x_frame = NULL; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_binary_setup(void) +{ + // post( pdp_binary_version ); + pdp_binary_class = class_new(gensym("pdp_binary"), (t_newmethod)pdp_binary_new, + (t_method)pdp_binary_free, sizeof(t_pdp_binary), 0, A_NULL); + + class_addmethod(pdp_binary_class, (t_method)pdp_binary_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_y, gensym("Y"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_u, gensym("U"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_v, gensym("V"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_cursx, gensym("cursx"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_cursy, gensym("cursy"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_pick, gensym("pick"), A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_tolerance, gensym("tolerance"), A_FLOAT, A_NULL); + class_addmethod(pdp_binary_class, (t_method)pdp_binary_setcur, gensym("setcur"), A_DEFFLOAT, A_DEFFLOAT, A_NULL); + class_sethelpsymbol( pdp_binary_class, gensym("pdp_binary.pd") ); +} + +#ifdef __cplusplus +} +#endif |