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_imgsaver.c | 340 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 340 insertions(+) create mode 100644 modules/pdp_imgsaver.c (limited to 'modules/pdp_imgsaver.c') diff --git a/modules/pdp_imgsaver.c b/modules/pdp_imgsaver.c new file mode 100644 index 0000000..5f11098 --- /dev/null +++ b/modules/pdp_imgsaver.c @@ -0,0 +1,340 @@ +/* + * 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 saves a snaphot to a file + * Image type is specified by extension + * It uses imlib2 for all graphical operations + */ + +#include "pdp.h" +#include "yuv.h" +#include +#include +#include +#include // imlib2 is required + +static char *pdp_imgsaver_version = "pdp_imgsaver: version 0.1 : image snapshot object written by ydegoyon@free.fr "; + +typedef struct pdp_imgsaver_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_save_pending; + + /* imlib data */ + Imlib_Image x_image; + DATA32 *x_imdata; + t_int x_iwidth; + t_int x_iheight; + + t_symbol *x_filename; + short int *x_datas; + pthread_t x_savechild; /* thread id for the saving child */ + +} t_pdp_imgsaver; + + /* do save the image */ +static void *pdp_imgsaver_do_save(void *tdata) +{ + Imlib_Load_Error imliberr; + t_pdp_imgsaver *x = (t_pdp_imgsaver*) tdata; + t_int px, py; + short int *pY, *pU, *pV; + unsigned char y, u, v; + + if ( ( x->x_vwidth == 0 ) || ( x->x_vheight == 0 ) ) + { + post( "pdp_imgsaver : tried to save an image but no video is playing" ); + x->x_save_pending = 0; + x->x_filename = NULL; + return NULL; + } + + x->x_image = imlib_create_image( x->x_vwidth, x->x_vheight ); + if ( x->x_image == NULL ) + { + post( "pdp_imgsaver : severe error : could not allocate image !!" ); + x->x_save_pending = 0; + x->x_filename = NULL; + return NULL; + } + imlib_context_set_image(x->x_image); + + x->x_imdata = imlib_image_get_data(); + x->x_iwidth = imlib_image_get_width(); + x->x_iheight = imlib_image_get_height(); + + pY = x->x_datas; + pV = x->x_datas+x->x_vsize; + pU = x->x_datas+x->x_vsize+(x->x_vsize>>2); + for ( py=0; pyx_iheight; py++ ) + { + for ( px=0; pxx_iwidth; px++ ) + { + y = *(pY)>>7; + v = (*(pV)>>8)+128; + u = (*(pU)>>8)+128; + x->x_imdata[ py*x->x_iwidth + px ] = yuv_YUVtoRGB( y, u, v ); + pY++; + if ( (px%2==0) && (py%2==0) ) + { + pV++;pU++; + } + } + } + + post( "pdp_imgsaver : saving image to : %s", x->x_filename->s_name ); + imlib_save_image_with_error_return(x->x_filename->s_name, &imliberr ); + if ( imliberr != IMLIB_LOAD_ERROR_NONE ) + { + post( "pdp_imgsaver : severe error : could not save image (err=%d)!!", imliberr ); + } + else + { + post( "pdp_imgsaver : saved to : %s", x->x_filename->s_name ); + } + + if ( x->x_image != NULL ) + { + imlib_free_image(); + x->x_image = NULL; + } + + x->x_save_pending = 0; + x->x_filename = NULL; + + post( "pdp_imgsaver : saving thread %d finished", x->x_savechild ); + x->x_savechild = 0; + + return NULL; + +} + + /* launched the thread to save the image */ +static void pdp_imgsaver_save(t_pdp_imgsaver *x, t_symbol *filename) +{ + pthread_attr_t save_child_attr; + + if ( x->x_save_pending ) + { + post( "pdp_imgsaver : a save operation is currently running...retry later" ); + return; + } + x->x_save_pending = 1; + x->x_filename = filename; + if ( x->x_image != NULL ) + { + imlib_free_image(); + x->x_image = NULL; + } + + // launch saving thread + if ( pthread_attr_init( &save_child_attr ) < 0 ) + { + post( "pdp_imgsaver : could not launch save thread" ); + perror( "pthread_attr_init" ); + return; + } + if ( pthread_attr_setdetachstate( &save_child_attr, PTHREAD_CREATE_DETACHED ) < 0 ) { + post( "pdp_imgsaver : could not launch save thread" ); + perror( "pthread_attr_setdetachstate" ); + return; + } + if ( pthread_create( &x->x_savechild, &save_child_attr, pdp_imgsaver_do_save, x ) < 0 ) { + post( "pdp_imgsaver : could not launch save thread" ); + perror( "pthread_create" ); + return; + } + else + { + post( "pdp_imgsaver : saving thread %d launched", (int)x->x_savechild ); + } +} + +static void pdp_imgsaver_allocate(t_pdp_imgsaver *x) +{ + x->x_datas = (short int *)getbytes((( x->x_vsize + (x->x_vsize>>1))<<1)); +} + +static void pdp_imgsaver_free_ressources(t_pdp_imgsaver *x) +{ + if ( x->x_datas ) freebytes( x->x_datas, (( x->x_vsize + (x->x_vsize>>1))<<1)); +} + +static void pdp_imgsaver_process_yv12(t_pdp_imgsaver *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 px, py; + t_float alpha, factor; + unsigned char y, u, v; + short int *pY, *pU, *pV; + + if ( ( (int)(header->info.image.width) != x->x_vwidth ) || + ( (int)(header->info.image.height) != x->x_vheight ) ) + { + pdp_imgsaver_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_imgsaver_allocate(x); + } + + newheader->info.image.encoding = header->info.image.encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + memcpy( newdata, data, (x->x_vsize+(x->x_vsize>>1))<<1 ); + if ( !x->x_save_pending ) + { + memcpy( x->x_datas, data, (x->x_vsize+(x->x_vsize>>1))<<1 ); + } + + return; +} + +static void pdp_imgsaver_sendpacket(t_pdp_imgsaver *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_imgsaver_process(t_pdp_imgsaver *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_imgsaver_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_imgsaver_process_yv12, pdp_imgsaver_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_imgsaver_process */ + break; + + } + } + +} + +static void pdp_imgsaver_input_0(t_pdp_imgsaver *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_imgsaver_process(x); + + } + +} + +static void pdp_imgsaver_free(t_pdp_imgsaver *x) +{ + int i; + + pdp_imgsaver_free_ressources(x); + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); +} + +t_class *pdp_imgsaver_class; + +void *pdp_imgsaver_new(void) +{ + int i; + + t_pdp_imgsaver *x = (t_pdp_imgsaver *)pd_new(pdp_imgsaver_class); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_datas = NULL; + x->x_queue_id = -1; + x->x_image = NULL; + + x->x_vwidth = 0; + x->x_vheight = 0; + + x->x_save_pending = 0; + x->x_filename = NULL; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_imgsaver_setup(void) +{ + + post( pdp_imgsaver_version ); + pdp_imgsaver_class = class_new(gensym("pdp_imgsaver"), (t_newmethod)pdp_imgsaver_new, + (t_method)pdp_imgsaver_free, sizeof(t_pdp_imgsaver), 0, A_NULL); + + class_addmethod(pdp_imgsaver_class, (t_method)pdp_imgsaver_input_0, gensym("pdp"), + A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_imgsaver_class, (t_method)pdp_imgsaver_save, gensym("save"), A_SYMBOL, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1