+++ /dev/null
-/*****************************************************************************\r
-** This is part of the CTSim program\r
-** Copyright (C) 1983-2000 Kevin Rosenberg\r
-**\r
-** $Id: sdf2img.c,v 1.6 2000/06/03 07:57:51 kevin Exp $\r
-** $Log: sdf2img.c,v $
-** Revision 1.6 2000/06/03 07:57:51 kevin
-** Fixed PNG 16-bit format
-**\r
-** Revision 1.5 2000/06/03 06:29:57 kevin\r
-** *** empty log message ***\r
-**\r
-** Revision 1.4 2000/05/24 22:50:04 kevin\r
-** Added support for new SGP library\r
-**\r
-** Revision 1.3 2000/05/16 04:33:59 kevin\r
-** Improved option processing\r
-**\r
-** Revision 1.2 2000/05/08 20:02:32 kevin\r
-** ANSI C changes\r
-**\r
-** Revision 1.1.1.1 2000/04/28 13:02:44 kevin\r
-** Initial CVS import for first public release\r
-**\r
-**\r
-**\r
-** This program is free software; you can redistribute it and/or modify\r
-** it under the terms of the GNU General Public License (version 2) as\r
-** published by the Free Software Foundation.\r
-**\r
-** This program is distributed in the hope that it will be useful,\r
-** but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-** GNU General Public License for more details.\r
-**\r
-** You should have received a copy of the GNU General Public License\r
-** along with this program; if not, write to the Free Software\r
-** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
-******************************************************************************/\r
-\r
-/* FILE\r
- * sdf2img.c Convert an SDF file to a viewable format image\r
- */\r
-\r
-#include "ct.h"\r
-\r
-#if HAVE_PNG\r
-void sdf2d_to_png (IMAGE *im, char *outfile, int bitdepth, int nxcell, int nycell, double densmin, double densmax);\r
-#endif\r
-#if HAVE_GIF\r
-void sdf2d_to_gif (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax);\r
-#endif\r
-void sdf2d_to_pgm (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax);\r
-void sdf2d_to_pgmasc (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax);\r
-\r
-enum { O_SCALE, O_MIN, O_MAX, O_AUTO, O_CENTER, O_STATS, O_FORMAT, O_LABELS, \r
- O_HELP, O_VERBOSE, O_VERSION, O_DEBUG };\r
-\r
-static struct option my_options[] =\r
-{\r
- {"scale", 1, 0, O_SCALE},\r
- {"min", 1, 0, O_MIN},\r
- {"max", 1, 0, O_MAX},\r
- {"auto", 1, 0, O_AUTO},\r
- {"center", 1, 0, O_CENTER},\r
- {"format", 1, 0, O_FORMAT},\r
- {"labels", 0, 0, O_LABELS},\r
- {"stats", 0, 0, O_STATS},\r
- {"verbose", 0, 0, O_VERBOSE},\r
- {"debug", 0, 0, O_DEBUG},\r
- {"help", 0, 0, O_HELP},\r
- {"version", 0, 0, O_VERSION},\r
- {0, 0, 0, 0}\r
-};\r
-\r
-enum { O_AUTO_FULL, O_AUTO_STD0_1, O_AUTO_STD0_5, O_AUTO_STD1, O_AUTO_STD2, O_AUTO_STD3 };\r
-#define O_AUTO_FULL_STR "full"\r
-#define O_AUTO_STD0_1_STR "std0.1"\r
-#define O_AUTO_STD0_5_STR "std0.5"\r
-#define O_AUTO_STD1_STR "std1"\r
-#define O_AUTO_STD2_STR "std2"\r
-#define O_AUTO_STD3_STR "std3"\r
-\r
-enum { O_CENTER_MEAN, O_CENTER_MODE };\r
-#define O_CENTER_MEAN_STR "mean"\r
-#define O_CENTER_MODE_STR "mode"\r
-\r
-enum { O_FORMAT_GIF, O_FORMAT_PNG, O_FORMAT_PNG16, O_FORMAT_PGM, O_FORMAT_PGMASC, O_FORMAT_DISP };\r
-#define O_FORMAT_GIF_STR "gif"\r
-#define O_FORMAT_PNG_STR "png" \r
-#define O_FORMAT_PNG16_STR "png16" \r
-#define O_FORMAT_PGM_STR "pgm"\r
-#define O_FORMAT_PGMASC_STR "pgmasc"\r
-#define O_FORMAT_DISP_STR "disp"\r
-\r
-void \r
-sdf2img_usage (const char *program)\r
-{\r
- fprintf(stdout, "sdf2img_usage: %s sdfname outfile [OPTIONS]\n", kbasename(program));\r
- fprintf(stdout, "Convert SDF2D file to an image file\n");\r
- fprintf(stdout, "\n");\r
- fprintf(stdout, " sdfname Name of input SDF file\n");\r
- fprintf(stdout, " outfile Name of output file\n");\r
- fprintf(stdout, " --format Output format\n");\r
- fprintf(stdout, " pgm PGM (portable graymap) format (default)\n");\r
- fprintf(stdout, " pgmasc PGM (portable graymap) ASCII format\n");\r
-#ifdef HAVE_PNG\r
- fprintf(stdout, " png PNG (8-bit) format\n");\r
- fprintf(stdout, " png16 PNG (16-bit) format\n");\r
-#endif\r
-#ifdef HAVE_GIF\r
- fprintf(stdout, " gif GIF format\n");\r
-#endif\r
- fprintf(stdout, " disp Display on screen\n");\r
- fprintf(stdout, " --center Center of window\n");\r
- fprintf(stdout, " mode Mode is center of window (default)\n");\r
- fprintf(stdout, " mean Mean is center of window\n");\r
- fprintf(stdout, " --auto Set auto window\n");\r
- fprintf(stdout, " full Use full window (default)\n");\r
- fprintf(stdout, " std0.1 Use 0.1 standard deviation about center\n");\r
- fprintf(stdout, " std0.5 Use 0.5 standard deviation about center\n");\r
- fprintf(stdout, " std1 Use one standard deviation about center\n");\r
- fprintf(stdout, " std2 Use two standard deviations about center\n");\r
- fprintf(stdout, " std3 Use three standard deviations about center\n");\r
- fprintf(stdout, " --scale Scaling factor for output size\n");\r
- fprintf(stdout, " --min Set minimum intensity\n");\r
- fprintf(stdout, " --max Set maximum intensity\n");\r
- fprintf(stdout, " --stats Print image statistics\n");\r
- fprintf(stdout, " --labels Print image labels\n");\r
- fprintf(stdout, " --debug Set debug mode\n");\r
- fprintf(stdout, " --verbose Set verbose mode\n");\r
- fprintf(stdout, " --version Print version\n");\r
- fprintf(stdout, " --help Print this help message\n");\r
-}\r
-\r
-\r
-int \r
-sdf2img_main (int argc, char *const argv[])\r
-{\r
- IMAGE *im;\r
- double densmin = HUGE_VAL, densmax = -HUGE_VAL;\r
- char *in_file, *out_file;\r
- int opt_verbose = 0;\r
- int opt_scale = 1;\r
- int opt_auto = O_AUTO_FULL;\r
- int opt_set_max = 0;\r
- int opt_set_min = 0;\r
- int opt_stats = 0;\r
- int opt_debug = 0;\r
- int opt_center = O_CENTER_MODE;\r
- int opt_format = O_FORMAT_PGM;\r
- int opt_labels = 0;\r
-\r
- while (1)\r
- {\r
- int c = getopt_long (argc, argv, "", my_options, NULL);\r
- char *endptr = NULL;\r
- char *endstr;\r
- \r
- if (c == -1)\r
- break;\r
- \r
- switch (c)\r
- {\r
- case O_MIN:\r
- opt_set_min = 1;\r
- densmin = strtod(optarg, &endptr);\r
- endstr = optarg + strlen(optarg);\r
- if (endptr != endstr)\r
- {\r
- fprintf(stderr, "Error setting --min to %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_MAX:\r
- opt_set_max = 1;\r
- densmax = strtod(optarg, &endptr);\r
- endstr = optarg + strlen(optarg);\r
- if (endptr != endstr)\r
- {\r
- fprintf(stderr, "Error setting --max to %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_SCALE:\r
- opt_scale = strtol(optarg, &endptr, 10);\r
- endstr = optarg + strlen(optarg);\r
- if (endptr != endstr)\r
- {\r
- fprintf(stderr,"Error setting --scale to %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_AUTO:\r
- if (strcmp(optarg, O_AUTO_FULL_STR) == 0)\r
- opt_auto = O_AUTO_FULL;\r
- else if (strcmp(optarg, O_AUTO_STD1_STR) == 0)\r
- opt_auto = O_AUTO_STD1;\r
- else if (strcmp(optarg, O_AUTO_STD0_5_STR) == 0)\r
- opt_auto = O_AUTO_STD0_5;\r
- else if (strcmp(optarg, O_AUTO_STD0_1_STR) == 0)\r
- opt_auto = O_AUTO_STD0_1;\r
- else if (strcmp(optarg, O_AUTO_STD2_STR) == 0)\r
- opt_auto = O_AUTO_STD2;\r
- else if (strcmp(optarg, O_AUTO_STD3_STR) == 0)\r
- opt_auto = O_AUTO_STD3;\r
- else\r
- {\r
- fprintf(stderr, "Invalid auto mode %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_CENTER:\r
- if (strcmp(optarg, O_CENTER_MEAN_STR) == 0)\r
- opt_center = O_CENTER_MEAN;\r
- else if (strcmp(optarg, O_CENTER_MODE_STR) == 0)\r
- opt_center = O_CENTER_MODE;\r
- else\r
- {\r
- fprintf(stderr, "Invalid center mode %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_FORMAT:\r
- if (strcmp(optarg, O_FORMAT_PGM_STR) == 0)\r
- opt_format = O_FORMAT_PGM;\r
- else if (strcmp(optarg, O_FORMAT_PGMASC_STR) == 0)\r
- opt_format = O_FORMAT_PGMASC;\r
-#if HAVE_PNG\r
- else if (strcmp(optarg, O_FORMAT_PNG_STR) == 0)\r
- opt_format = O_FORMAT_PNG;\r
- else if (strcmp(optarg, O_FORMAT_PNG16_STR) == 0)\r
- opt_format = O_FORMAT_PNG16;\r
-#endif\r
-#if HAVE_GIF\r
- else if (strcmp(optarg, O_FORMAT_GIF_STR) == 0)\r
- opt_format = O_FORMAT_GIF;\r
-#endif\r
- else if (strcmp(optarg, O_FORMAT_DISP_STR) == 0)\r
- opt_format = O_FORMAT_DISP;\r
- else {\r
- fprintf(stderr, "Invalid format mode %s\n", optarg);\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- break;\r
- case O_LABELS:\r
- opt_labels = 1;\r
- break;\r
- case O_VERBOSE:\r
- opt_verbose = 1;\r
- break;\r
- case O_DEBUG:\r
- opt_debug = 1;\r
- break;\r
- case O_STATS:\r
- opt_stats = 1;\r
- break;\r
- case O_VERSION:\r
-#ifdef VERSION\r
- fprintf(stdout, "Version %s\n", VERSION);\r
-#else\r
- fprintf(stderr, "Unknown version number");\r
-#endif\r
- exit(0);\r
- case O_HELP:\r
- case '?':\r
- sdf2img_usage(argv[0]);\r
- return (0);\r
- default:\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- }\r
-\r
- if ((opt_format == O_FORMAT_DISP && optind + 1 != argc) \r
- || (opt_format != O_FORMAT_DISP && optind + 2 != argc))\r
- {\r
- sdf2img_usage(argv[0]);\r
- return (1);\r
- }\r
- \r
- in_file = argv[optind];\r
-\r
- if (opt_format != O_FORMAT_DISP)\r
- out_file = argv[optind+1];\r
- else out_file = NULL;\r
-\r
- if ((im = image_load (in_file)) == NULL)\r
- {\r
- fprintf(stderr, "File %s does not exist\n", in_file);\r
- return (1);\r
- }\r
-\r
- if (opt_labels) \r
- {\r
- int nlabels = im->dfp_2d->dfp->num_label;\r
- int i;\r
-\r
- for (i = 0; i < nlabels; i++)\r
- {\r
- SDF_BLK blk;\r
- if (sdf_read_label(&blk.lab, i, im->dfp_2d->dfp) != SDF_OK)\r
- break;\r
- if (blk.lab.label_type == LT_HISTORY) {\r
- fprintf(stdout, "History: %s\n", blk.lab.label_str);\r
- fprintf(stdout, " calc time = %.2f secs\n", blk.lab.calc_time);\r
- fprintf(stdout, " Timestamp = %s\n", td_str_tmdt(&blk.lab.timedate));\r
- } else if (blk.lab.label_type == LT_TITLE) {\r
- fprintf(stdout, "Title: %s\n", blk.lab.label_str);\r
- fprintf(stdout, " Timestamp = %s\n", td_str_tmdt(&blk.lab.timedate));\r
- } else if (blk.lab.label_type == LT_NOTE) {\r
- fprintf(stdout, "Note: %s\n", blk.lab.label_str);\r
- fprintf(stdout, " Timestamp = %s\n", td_str_tmdt(&blk.lab.timedate));\r
- }\r
- }\r
- }\r
-\r
- if (opt_stats || (! (opt_set_max && opt_set_min)))\r
- {\r
- double minfound = HUGE_VAL, maxfound = -HUGE_VAL;\r
- double mode = 0, mean = 0, stddev = 0, window = 0;\r
- double spread;\r
- int hist[256];\r
- int ibin, nbin = 256;\r
- int max_bin, max_binindex; \r
- double maxbin;\r
- int ix, iy;\r
-\r
- maxbin = nbin - 1;\r
- for (ix = 0; ix < im->nx; ix++)\r
- {\r
- for (iy = 0; iy < im->ny; iy++)\r
- {\r
- if (im->v[ix][iy] > maxfound)\r
- maxfound = im->v[ix][iy];\r
- if (im->v[ix][iy] < minfound)\r
- minfound = im->v[ix][iy];\r
- mean += im->v[ix][iy];\r
- }\r
- }\r
- spread = maxfound - minfound;\r
- if (spread == 0)\r
- mode = minfound;\r
- else\r
- {\r
- for (ibin = 0; ibin < nbin; ibin++)\r
- hist[ibin] = 0;\r
- for (ix = 0; ix < im->nx; ix++)\r
- {\r
- for (iy = 0; iy < im->ny; iy++)\r
- {\r
- int b = (int) ((((im->v[ix][iy] - minfound) / spread) * (double) maxbin) + 0.5);\r
- hist[b]++;\r
- }\r
- }\r
- max_binindex = 0;\r
- max_bin = -1;\r
- for (ibin = 0; ibin < nbin; ibin++)\r
- {\r
- if (hist[ibin] > max_bin)\r
- {\r
- max_bin = hist[ibin];\r
- max_binindex = ibin;\r
- }\r
- }\r
- mode = (((double) max_binindex) * spread / ((double) maxbin)) + minfound;\r
- }\r
-\r
- if (opt_auto == O_AUTO_FULL)\r
- {\r
- if (! opt_set_max)\r
- densmax = maxfound;\r
- if (! opt_set_min)\r
- densmin = minfound;\r
- }\r
- if (opt_stats || opt_auto != O_AUTO_FULL)\r
- {\r
- mean /= im->nx * im->ny;\r
- for (ix = 0; ix < im->nx; ix++)\r
- {\r
- for (iy = 0; iy < im->ny; iy++)\r
- {\r
- double diff = (im->v[ix][iy] - mean);\r
- stddev += diff * diff;\r
- }\r
- }\r
- stddev = sqrt(stddev / (im->nx * im->ny));\r
- if (opt_auto == O_AUTO_FULL)\r
- ;\r
- else if (opt_auto == O_AUTO_STD1)\r
- window = stddev;\r
- else if (opt_auto == O_AUTO_STD0_1)\r
- window = stddev * 0.1;\r
- else if (opt_auto == O_AUTO_STD0_5)\r
- window = stddev * 0.5;\r
- else if (opt_auto == O_AUTO_STD2)\r
- window = stddev * 2;\r
- else if (opt_auto == O_AUTO_STD3)\r
- window = stddev * 3;\r
- else\r
- {\r
- fprintf(stderr, "Internal Error: Invalid auto mode %d\n", opt_auto);\r
- return (1);\r
- }\r
- }\r
- if (opt_stats)\r
- {\r
- fprintf(stdout,"nx=%d\n", im->nx);\r
- fprintf(stdout,"ny=%d\n", im->ny);\r
- fprintf(stdout,"min=%f\n", minfound);\r
- fprintf(stdout,"max=%f\n", maxfound);\r
- fprintf(stdout,"mean=%f\n", mean);\r
- fprintf(stdout,"mode=%f\n", mode);\r
- fprintf(stdout,"stddev=%f\n", stddev);\r
- }\r
- if (opt_auto != O_AUTO_FULL)\r
- {\r
- double center;\r
-\r
- if (opt_center == O_CENTER_MODE)\r
- center = mode;\r
- else if (opt_center == O_CENTER_MEAN)\r
- center = mean;\r
- else\r
- {\r
- fprintf(stderr, "Internal Error: Invalid center mode %d\n", opt_center);\r
- return (1);\r
- }\r
- if (! opt_set_max)\r
- densmax = center + window;\r
- if (! opt_set_min)\r
- densmin = center - window;\r
- }\r
- }\r
-\r
- if (opt_stats)\r
- {\r
- fprintf(stdout,"min_disp=%f\n", densmin);\r
- fprintf(stdout,"max_disp=%f\n", densmax);\r
- }\r
- \r
- if (opt_format == O_FORMAT_PGM)\r
- sdf2d_to_pgm (im, out_file, opt_scale, opt_scale, densmin, densmax);\r
- else if (opt_format == O_FORMAT_PGMASC)\r
- sdf2d_to_pgmasc (im, out_file, opt_scale, opt_scale, densmin, densmax);\r
-#if HAVE_PNG\r
- else if (opt_format == O_FORMAT_PNG)\r
- sdf2d_to_png (im, out_file, 8, opt_scale, opt_scale, densmin, densmax);\r
- else if (opt_format == O_FORMAT_PNG16)\r
- sdf2d_to_png (im, out_file, 16, opt_scale, opt_scale, densmin, densmax);\r
-#endif\r
-#if HAVE_GIF\r
- else if (opt_format == O_FORMAT_GIF) \r
- sdf2d_to_gif (im, out_file, opt_scale, opt_scale, densmin, densmax);\r
-#endif\r
- else if (opt_format == O_FORMAT_DISP) {\r
-#if HAVE_SGP\r
- image_display_scale (im, opt_scale, densmin, densmax);\r
- cio_kb_getc();\r
- sgp2_close(sgp2_get_active_win());\r
-#endif\r
- }\r
- else\r
- {\r
- fprintf(stderr, "Internal Error: Invalid format mode %d\n", opt_format);\r
- return (1);\r
- }\r
- return (0);\r
-}\r
-\r
-\r
-void \r
-sdf2d_to_pgm (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax)\r
-{\r
- FILE *fp;\r
- int irow;\r
- unsigned char *rowp;\r
-\r
- rowp = (unsigned char *) sys_alloc(im->nx * nxcell,"sdf2d_to_img");\r
- if (rowp == NULL)\r
- return;\r
-\r
- if ((fp = fopen (outfile, "wb")) == NULL)\r
- return;\r
-\r
- fprintf(fp, "P5\n");\r
- fprintf(fp, "%d %d\n", im->nx, im->ny);\r
- fprintf(fp, "255\n");\r
-\r
- for (irow = im->ny - 1; irow >= 0; irow--)\r
- {\r
- int icol, ir;\r
-\r
- for (icol = 0; icol < im->nx; icol++)\r
- {\r
- double dens;\r
- int p;\r
- int pos = icol * nxcell;\r
- dens = (im->v[icol][irow] - densmin) / (densmax - densmin);\r
- if (dens < 0)\r
- dens = 0;\r
- else if (dens > 1)\r
- dens = 1;\r
- for (p = pos; p < pos + nxcell; p++)\r
- {\r
- rowp[p] = (unsigned int) (dens * 255.);\r
- }\r
- }\r
- for (ir = 0; ir < nycell; ir++)\r
- {\r
- int ic;\r
- for (ic = 0; ic < im->nx * nxcell; ic++) \r
- fprintf(fp, "%c ", rowp[ic]);\r
- }\r
- }\r
- sys_free(rowp, "sdf2img");\r
-\r
- fclose(fp);\r
-}\r
-\r
-void \r
-sdf2d_to_pgmasc (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax)\r
-{\r
- FILE *fp;\r
- int irow;\r
- unsigned char *rowp;\r
-\r
- rowp = (unsigned char *) sys_alloc(im->nx * nxcell,"sdf2d_to_img");\r
- if (rowp == NULL)\r
- return;\r
-\r
- if ((fp = fopen (outfile, "wb")) == NULL)\r
- return;\r
-\r
- fprintf(fp, "P2\n");\r
- fprintf(fp, "%d %d\n", im->nx, im->ny);\r
- fprintf(fp, "255\n");\r
-\r
- for (irow = im->ny - 1; irow >= 0; irow--)\r
- {\r
- int icol, ir;\r
-\r
- for (icol = 0; icol < im->nx; icol++)\r
- {\r
- double dens;\r
- int p;\r
- int pos = icol * nxcell;\r
- dens = (im->v[icol][irow] - densmin) / (densmax - densmin);\r
- if (dens < 0)\r
- dens = 0;\r
- else if (dens > 1)\r
- dens = 1;\r
- for (p = pos; p < pos + nxcell; p++)\r
- {\r
- rowp[p] = (unsigned int) (dens * 255.);\r
- }\r
- }\r
- for (ir = 0; ir < nycell; ir++)\r
- {\r
- int ic;\r
- for (ic = 0; ic < im->nx * nxcell; ic++) \r
- fprintf(fp, "%d ", rowp[ic]);\r
- fprintf(fp, "\n");\r
- }\r
- }\r
- sys_free(rowp, "sdf2img");\r
-\r
- fclose(fp);\r
-}\r
-\r
-\r
-#ifdef HAVE_PNG\r
-void \r
-sdf2d_to_png (IMAGE *im, char *outfile, int bitdepth, int nxcell, int nycell, double densmin, double densmax)\r
-{\r
- FILE *fp;\r
- png_structp png_ptr;\r
- png_infop info_ptr;\r
- int irow;\r
- unsigned char *rowp;\r
- double max_out_level = (1 << bitdepth) - 1;\r
-\r
- rowp = (unsigned char *) sys_alloc(im->nx * nxcell * (bitdepth / 8),"sdf2d_to_img");\r
- if (rowp == NULL)\r
- return;\r
-\r
- if ((fp = fopen (outfile, "wb")) == NULL)\r
- return;\r
-\r
- png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);\r
- if (! png_ptr)\r
- return;\r
-\r
- info_ptr = png_create_info_struct(png_ptr);\r
- if (! info_ptr)\r
- {\r
- png_destroy_write_struct(&png_ptr, (png_infopp) NULL);\r
- fclose(fp);\r
- return;\r
- }\r
-\r
- if (setjmp(png_ptr->jmpbuf))\r
- {\r
- png_destroy_write_struct(&png_ptr, &info_ptr);\r
- fclose(fp);\r
- return;\r
- }\r
-\r
- png_init_io(png_ptr, fp);\r
-\r
- png_set_IHDR(png_ptr, info_ptr, im->nx * nxcell, im->ny * nycell, bitdepth, PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_DEFAULT);\r
-\r
- png_write_info(png_ptr, info_ptr);\r
- for (irow = im->ny - 1; irow >= 0; irow--)\r
- {\r
- png_bytep row_pointer = rowp;\r
- int icol, ir;\r
-\r
- for (icol = 0; icol < im->nx; icol++)\r
- {\r
- double dens;\r
- int p;\r
- unsigned int outval;\r
- int pos = icol * nxcell;\r
- dens = (im->v[icol][irow] - densmin) / (densmax - densmin);\r
- if (dens < 0)\r
- dens = 0;\r
- else if (dens > 1)\r
- dens = 1;\r
- outval = dens * max_out_level;\r
- for (p = pos; p < pos + nxcell; p++)\r
- {\r
- if (bitdepth == 8)\r
- rowp[p] = outval;\r
- else {\r
- int rowpos = p * 2;\r
- rowp[rowpos] = (outval >> 8) & 0xFF;\r
- rowp[rowpos+1] = (outval & 0xFF);\r
- }\r
- }\r
- }\r
- for (ir = 0; ir < nycell; ir++)\r
- {\r
- png_write_rows (png_ptr, &row_pointer, 1);\r
- }\r
- }\r
- sys_free(rowp, "sdf2img");\r
-\r
- png_write_end(png_ptr, info_ptr);\r
- png_destroy_write_struct(&png_ptr, &info_ptr);\r
-\r
- fclose(fp);\r
-}\r
-#endif\r
-\r
-#ifdef HAVE_GD\r
-#include "gd.h"\r
-#define N_GRAYSCALE 256\r
-#endif\r
-\r
-void\r
-sdf2d_to_gif (IMAGE *im, char *outfile, int nxcell, int nycell, double densmin, double densmax)\r
-{\r
-#ifdef HAVE_GD\r
- gdImagePtr gif;\r
- FILE *out;\r
- int gs_indices[N_GRAYSCALE];\r
- int i;\r
- int irow;\r
- int lastrow;\r
- unsigned char *rowp;\r
-\r
- rowp = (unsigned char *) sys_alloc(im->nx * nxcell,"sdf2d_to_img");\r
- if (rowp == NULL)\r
- return;\r
-\r
- gif = gdImageCreate(im->nx * nxcell, im->ny * nycell);\r
- for (i = 0; i < N_GRAYSCALE; i++)\r
- gs_indices[i] = gdImageColorAllocate(gif, i, i, i);\r
-\r
- lastrow = im->ny * nycell - 1;\r
- for (irow = 0; irow < im->ny; irow++)\r
- {\r
- int icol, ir;\r
- int rpos = irow * nycell;\r
- for (ir = rpos; ir < rpos + nycell; ir++)\r
- {\r
- for (icol = 0; icol < im->nx; icol++)\r
- {\r
- double dens;\r
- int ic;\r
- int cpos = icol * nxcell;\r
- dens = (im->v[icol][irow] - densmin) / (densmax - densmin);\r
- if (dens < 0)\r
- dens = 0;\r
- else if (dens > 1)\r
- dens = 1;\r
- for (ic = cpos; ic < cpos + nxcell; ic++)\r
- {\r
- rowp[ic] = (unsigned int) (dens * (double) (N_GRAYSCALE - 1));\r
- gdImageSetPixel(gif, ic, lastrow - ir, gs_indices[rowp[ic]]);\r
- }\r
- }\r
- }\r
- }\r
- sys_free(rowp, "sdf2img");\r
-\r
- if ((out = fopen(outfile,"w")) == NULL)\r
- {\r
- fprintf(stderr,"Error opening output file %s for writing\n", outfile);\r
- exit(1);\r
- }\r
- gdImageGif(gif,out);\r
- fclose(out);\r
- gdImageDestroy(gif);\r
-#else\r
- fprintf(stderr, "This version does not support GIF");\r
-#endif\r
-}\r
-\r
-#ifndef NO_MAIN\r
-int \r
-main (int argc, char *const argv[])\r
-{\r
- return (sdf2img_main(argc, argv));\r
-}\r
-#endif\r
projects / ctsim.git / blobdiff