diff options
Diffstat (limited to 'modules/pdp_grey2mask.c')
| -rw-r--r-- | modules/pdp_grey2mask.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/modules/pdp_grey2mask.c b/modules/pdp_grey2mask.c deleted file mode 100644 index af6a99f..0000000 --- a/modules/pdp_grey2mask.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Pure Data Packet module. - * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> - * - * 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 module converts a greyscale image or the luma channel of a colour image - to a colour image intensity mask, usable for multiplication */ - -#include "pdp.h" -#include "pdp_resample.h" - -typedef struct pdp_grey2mask_struct -{ - t_object x_obj; - t_float x_f; - - t_outlet *x_outlet0; - - int x_packet0; - int x_dropped; - int x_queue_id; - - -} t_pdp_grey2mask; - - - -static void pdp_grey2mask_process_grey(t_pdp_grey2mask *x) -{ - t_pdp *header = pdp_packet_header(x->x_packet0); - short int *data = (short int *)pdp_packet_data (x->x_packet0); - t_pdp *newheader = 0; - short int *newdata = 0; - int newpacket = -1; - - unsigned int w = header->info.image.width; - unsigned int h = header->info.image.height; - - unsigned int size = w*h; - unsigned int totalnbpixels = size; - unsigned int u_offset = size; - unsigned int v_offset = size + (size>>2); - - unsigned int row, col; - - newpacket = pdp_packet_new(PDP_IMAGE, (size + (size>>1))<<1); - newheader = pdp_packet_header(newpacket); - newdata = (short int *)pdp_packet_data(newpacket); - - newheader->info.image.encoding = PDP_IMAGE_YV12; - newheader->info.image.width = w; - newheader->info.image.height = h; - - - /* copy luma channel */ - memcpy(newdata, data, size * sizeof(s16)); - - /* subsample luma -> chroma channel */ - pdp_resample_halve(data, newdata+u_offset, w, h); - - /* copy this to the other chroma channel */ - memcpy(newdata+v_offset, newdata+u_offset, (size>>2)*sizeof(s16)); - - /* delete source packet and replace with new packet */ - pdp_packet_mark_unused(x->x_packet0); - x->x_packet0 = newpacket; - return; -} - -static void pdp_grey2mask_process_yv12(t_pdp_grey2mask *x) -{ - /* process only the luminance channel */ - pdp_grey2mask_process_grey(x); -} - - - -static void pdp_grey2mask_process(t_pdp_grey2mask *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_grey2mask_process inputs and write into active inlet */ - switch(pdp_packet_header(x->x_packet0)->info.image.encoding){ - - case PDP_IMAGE_YV12: - pdp_grey2mask_process_yv12(x); - break; - - case PDP_IMAGE_GREY: - pdp_grey2mask_process_grey(x); - break; - - default: - /* don't know the type, so dont pdp_grey2mask_process */ - - break; - } - } -} - -static void pdp_grey2mask_sendpacket(t_pdp_grey2mask *x) -{ - /* unregister and propagate if valid packet */ - pdp_pass_if_valid(x->x_outlet0, &x->x_packet0); -} - -static void pdp_grey2mask_input_0(t_pdp_grey2mask *x, t_symbol *s, t_floatarg f) -{ - - int p = (int)f; - - if (s== gensym("register_ro")) x->x_dropped = pdp_packet_copy_ro_or_drop(&x->x_packet0, p); - - - if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){ - - - /* add the process method and callback to the process queue */ - - //pdp_queue_add(x, pdp_grey2mask_process, pdp_grey2mask_sendpacket, &x->x_queue_id); - // since the process method creates a packet, this is not processed in the thread - // $$$TODO: fix this - pdp_grey2mask_process(x); - pdp_grey2mask_sendpacket(x); - } - -} - - - -static void pdp_grey2mask_free(t_pdp_grey2mask *x) -{ - pdp_queue_finish(x->x_queue_id); - pdp_packet_mark_unused(x->x_packet0); - -} - -t_class *pdp_grey2mask_class; - - - -void *pdp_grey2mask_new(void) -{ - int i; - - t_pdp_grey2mask *x = (t_pdp_grey2mask *)pd_new(pdp_grey2mask_class); - - x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); - x->x_packet0 = -1; - x->x_queue_id = -1; - - - return (void *)x; -} - - -#ifdef __cplusplus -extern "C" -{ -#endif - - -void pdp_grey2mask_setup(void) -{ - - - pdp_grey2mask_class = class_new(gensym("pdp_grey2mask"), (t_newmethod)pdp_grey2mask_new, - (t_method)pdp_grey2mask_free, sizeof(t_pdp_grey2mask), 0, A_NULL); - - - class_addmethod(pdp_grey2mask_class, (t_method)pdp_grey2mask_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); - - -} - -#ifdef __cplusplus -} -#endif |