psutils 1.23

git-svn-id: svn://tug.org/texlive/trunk@32688 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 173 insertions, 0 deletions

diff --git a/Build/source/texk/psutils/psutils-1.23/epsffit.c b/Build/source/texk/psutils/psutils-1.23/epsffit.c
new file mode 100644
index 00000000000..df7e81eb2ae
--- /dev/null
+++ b/Build/source/texk/psutils/psutils-1.23/epsffit.c
@@ -0,0 +1,173 @@
+/* epsffit.c
+ * Fit EPSF file into constrained size
+ *
+ * (c) Reuben Thomas 2012-2014
+ * (c) Angus J. C. Duggan 1991-1997
+ * See file LICENSE for details.
+ *
+ * Added filename spec (from Larry Weissman) 5 Feb 93
+ * Accepts double %%BoundingBox input, outputs proper BB, 4 Jun 93. (I don't
+ * like this; developers should read the Big Red Book before writing code which
+ * outputs PostScript.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include "progname.h"
+#include "binary-io.h"
+
+#include "psutil.h"
+
+const char *syntax = "[-c] [-r] [-a] [-m] [-s] LLX LLY URX URY [INFILE [OUTFILE]]\n";
+
+const char *argerr_message = "";
+
+int
+main(int argc, char **argv)
+{
+   int bbfound = 0;              /* %%BoundingBox: found */
+   int urx = 0, ury = 0, llx = 0, lly = 0;
+   int furx, fury, fllx, flly;
+   int showpage = 0, centre = 0, rotate = 0, aspect = 0, maximise = 0;
+   char buf[BUFSIZ];
+   FILE *input = stdin;
+   FILE *output = stdout;
+   int opt;
+
+   set_program_name(argv[0]);
+
+   while((opt = getopt(argc, argv, "csramv")) != EOF) {
+     switch(opt) {
+     case 'c': centre = 1; break;
+     case 's': showpage = 1; break;
+     case 'r': rotate = 1; break;
+     case 'a': aspect = 1; break;
+     case 'm': maximise = 1; break;
+     case 'v':
+     default:
+       usage();
+       break;
+     }
+   }
+
+   if ((argc - optind) < 4 || (argc - optind) > 6) usage();
+
+   fllx = atoi(argv[optind++]);
+   flly = atoi(argv[optind++]);
+   furx = atoi(argv[optind++]);
+   fury = atoi(argv[optind++]);
+
+   /* Be defensive */
+   if((argc - optind) < 0 || (argc - optind) > 2) usage();
+
+   if ((argc - optind) > 0) {
+      if(!(input = fopen(argv[optind], "rb")))
+	 die("can't open input file %s", argv[optind]);
+      optind++;
+   } else if (set_binary_mode(fileno(stdin), O_BINARY) < 0)
+      die("can't reset stdin to binary mode");
+
+   if ((argc - optind) > 0) {
+      if(!(output = fopen(argv[optind], "wb")))
+	 die("can't open output file %s", argv[optind]);
+      optind++;
+   } else if (set_binary_mode(fileno(stdout), O_BINARY) < 0)
+      die("can't reset stdout to binary mode");
+
+   while (fgets(buf, BUFSIZ, input)) {
+      if (buf[0] == '%' && (buf[1] == '%' || buf[1] == '!')) {
+	 /* still in comment section */
+	 if (!strncmp(buf, "%%BoundingBox:", 14)) {
+	    double illx, illy, iurx, iury;	/* input bbox parameters */
+	    if (sscanf(buf, "%%%%BoundingBox:%lf %lf %lf %lf\n",
+		       &illx, &illy, &iurx, &iury) == 4) {
+	       bbfound = 1;
+	       llx = (int)illx;	/* accept doubles, but convert to int */
+	       lly = (int)illy;
+	       urx = (int)(iurx+0.5);
+	       ury = (int)(iury+0.5);
+	    }
+	 } else if (!strncmp(buf, "%%EndComments", 13)) {
+	    strcpy(buf, "\n"); /* don't repeat %%EndComments */
+	    break;
+	 } else fputs(buf, output);
+      } else break;
+   }
+
+   if (bbfound) { /* put BB, followed by scale&translate */
+      int fwidth, fheight;
+      double xscale, yscale;
+      double xoffset = fllx, yoffset = flly;
+      double width = urx-llx, height = ury-lly;
+
+      if (maximise)
+	 if ((width > height && fury-flly > furx-fllx) ||
+	     (width < height && fury-flly < furx-fllx)) 
+	    rotate = 1;
+
+      if (rotate) {
+	 fwidth = fury - flly;
+	 fheight = furx - fllx;
+      } else {
+	 fwidth = furx - fllx;
+	 fheight = fury - flly;
+      }
+
+      xscale = fwidth/width;
+      yscale = fheight/height;
+
+      if (!aspect) {       /* preserve aspect ratio ? */
+	 xscale = yscale = MIN(xscale,yscale);
+      }
+      width *= xscale;     /* actual width and height after scaling */
+      height *= yscale;
+      if (centre) {
+	 if (rotate) {
+	    xoffset += (fheight - height)/2;
+	    yoffset += (fwidth - width)/2;
+	 } else {
+	    xoffset += (fwidth - width)/2;
+	    yoffset += (fheight - height)/2;
+	 }
+      }
+      fprintf(output, 
+	      "%%%%BoundingBox: %d %d %d %d\n", (int)xoffset, (int)yoffset,
+	     (int)(xoffset+(rotate ? height : width)),
+	     (int)(yoffset+(rotate ? width : height)));
+      if (rotate) {  /* compensate for original image shift */
+	 xoffset += height + lly * yscale;  /* displacement for rotation */
+	 yoffset -= llx * xscale;
+      } else {
+	 xoffset -= llx * xscale;
+	 yoffset -= lly * yscale;
+      }
+      fputs("%%EndComments\n", output);
+      if (showpage)
+	 fputs("save /showpage{}def /copypage{}def /erasepage{}def\n", output);
+      else
+	 fputs("%%BeginProcSet: epsffit 1 0\n", output);
+      fputs("gsave\n", output);
+      fprintf(output, "%.3f %.3f translate\n", xoffset, yoffset);
+      if (rotate)
+	 fputs("90 rotate\n", output);
+      fprintf(output, "%.3f %.3f scale\n", xscale, yscale);
+      if (!showpage)
+	 fputs("%%EndProcSet\n", output);
+   }
+   do {
+      fputs(buf, output);
+   } while (fgets(buf, BUFSIZ, input));
+   if (bbfound) {
+      fputs("grestore\n", output);
+      if (showpage)
+	 fputs("restore showpage\n", output); /* just in case */
+   } else
+      die("no %%%%BoundingBox:");
+
+   return 0;
+}