/* * 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 ASCII art object replacing blocks with ASCII characters * Written by Yves Degoyon ( ydegoyon@free.fr ) */ #include "pdp.h" #include "yuv.h" #include "charmaps.h" #include static char *pdp_ascii_version = "pdp_ascii: version 0.1, ASCII art output written by ydegoyon@free.fr"; typedef struct pdp_ascii_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; t_int x_color; // rendering color option t_int x_brightness; // added value for brightness t_float x_ratio; // character to pixel ratio } t_pdp_ascii; static void pdp_ascii_color(t_pdp_ascii *x, t_floatarg fcolor) { if ( ((int)fcolor == 0) || ((int)fcolor == 1) ) { x->x_color = (int)fcolor; } } static void pdp_ascii_ratio(t_pdp_ascii *x, t_floatarg fratio) { if ( ( fratio > 0) && ( x->x_ratio < x->x_vwidth/2 ) ) { x->x_ratio = fratio; } } static void pdp_ascii_brightness(t_pdp_ascii *x, t_floatarg fbrightness) { if ( ((int)fbrightness > 0) && ((int)fbrightness < 255) ) { x->x_brightness = (int)fbrightness; } } static void pdp_ascii_process_yv12(t_pdp_ascii *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, pixsum; t_int px, py, ppx, ppy; t_int rank, value; t_int pwidth, pheight; x->x_vwidth = header->info.image.width; x->x_vheight = header->info.image.height; x->x_vsize = x->x_vwidth*x->x_vheight; newheader->info.image.encoding = header->info.image.encoding; newheader->info.image.width = x->x_vwidth; newheader->info.image.height = x->x_vheight; memset( newdata, 0x00, (x->x_vsize+(x->x_vsize>>1))<<1 ); pwidth = (int) CHARWIDTH*x->x_ratio; if (pwidth==0) pwidth=1; if (pwidth>x->x_vwidth) return; pheight = (int) CHARHEIGHT*x->x_ratio; if (pheight==0) pheight=1; if (pheight>x->x_vheight) return; for(py=1; pyx_vheight; py+=pheight) { for(px=0; pxx_vwidth; px+=pwidth) { pixsum = 0; for ( ppy=0; ppyx_vwidth + (px+ppx)]>>7); } } rank = (pixsum/(pheight*pwidth))/2; // set the chosen character for ( ppy=0; ppy x->x_vwidth ) || ( py+ppy > x->x_vheight ) ) { break; } if ( charmaps[rank][((int)(ppy/x->x_ratio))*CHARWIDTH+((int)(ppx/x->x_ratio))] ) { value = ( (2*rank+x->x_brightness) > 255 ) ? 255 : (2*rank+x->x_brightness); newdata[(py+ppy)*x->x_vwidth+(px+ppx)] = (value)<<7; if ( x->x_color ) { newdata[x->x_vsize+((py+ppy)>>1)*(x->x_vwidth>>1)+((px+ppx)>>1)] = data[x->x_vsize+((py+ppy)>>1)*(x->x_vwidth>>1)+((px+ppx)>>1)]; newdata[x->x_vsize+(x->x_vsize>>2)+((py+ppy)>>1)*(x->x_vwidth>>1)+((px+ppx)>>1)] = data[x->x_vsize+(x->x_vsize>>2)+((py+ppy)>>1)*(x->x_vwidth>>1)+((px+ppx)>>1)]; } } } } } } return; } static void pdp_ascii_sendpacket(t_pdp_ascii *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_ascii_process(t_pdp_ascii *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_ascii_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_ascii_process_yv12, pdp_ascii_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_ascii_process */ break; } } } static void pdp_ascii_input_0(t_pdp_ascii *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_ascii_process(x); } } static void pdp_ascii_free(t_pdp_ascii *x) { int i; pdp_queue_finish(x->x_queue_id); pdp_packet_mark_unused(x->x_packet0); } t_class *pdp_ascii_class; void *pdp_ascii_new(void) { int i; t_pdp_ascii *x = (t_pdp_ascii *)pd_new(pdp_ascii_class); inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ratio")); 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_color = 1; x->x_ratio = 1.; x->x_brightness = 25; return (void *)x; } #ifdef __cplusplus extern "C" { #endif void pdp_ascii_setup(void) { post( pdp_ascii_version ); pdp_ascii_class = class_new(gensym("pdp_ascii"), (t_newmethod)pdp_ascii_new, (t_method)pdp_ascii_free, sizeof(t_pdp_ascii), 0, A_NULL); class_addmethod(pdp_ascii_class, (t_method)pdp_ascii_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); class_addmethod(pdp_ascii_class, (t_method)pdp_ascii_color, gensym("color"), A_DEFFLOAT, A_NULL); class_addmethod(pdp_ascii_class, (t_method)pdp_ascii_brightness, gensym("brightness"), A_DEFFLOAT, A_NULL); class_addmethod(pdp_ascii_class, (t_method)pdp_ascii_ratio, gensym("ratio"), A_DEFFLOAT, A_NULL); } #ifdef __cplusplus } #endif