(mgp-users 00144) Re: converting presentations to html...

[sen_ml@eccosys.com]

attached is a slightly nicer patch (still slow though, and png support
seems flaky...)

i forgot to mention that the default image format becomes jpeg w/ this
patch (and the former one).  gif generation is a lot slower than in
vanilla mgp :-(

--- mgp.c-dist	Fri Apr  2 16:55:08 1999
+++ mgp.c	Mon Apr  5 14:38:56 1999
@@ -77,6 +77,8 @@
 
 static char *tsfile = NULL;
 static char *dumpdir = NULL;
+/* file format extension -- use what 'convert' from imagemagick uses */
+static char *gformat = NULL;
 
 char *gsdevice = DEFAULT_GSDEV;
 
@@ -202,7 +204,7 @@
 		mgpwdir = p;
 	}
 
-#define ACCEPTOPTS	"BdvVob:c:g:f:hlGp:qt:Q:PST:D:CORw:X:x:n"
+#define ACCEPTOPTS	"BdvVob:c:g:f:hlGp:qt:Q:PST:D:z:CORw:X:x:n"
 	while ((opt = getopt(argc, argv, ACCEPTOPTS)) != -1) {
 #undef ACCEPTOPTS
 		switch (opt) {
@@ -263,6 +265,10 @@
 			tbar_mode = 1;
 			break;
 
+		case 'z':
+		        gformat = optarg;
+                        break;
+
 		case 'Q':
 			b_quality = atoi(optarg);
 			quality_flag = 1;
@@ -404,6 +410,12 @@
 	FILE *txt;
 	int page;
 	char *childdebug;
+        /* hope this works... */
+	char *gr_format = "jpeg";
+
+        if (gformat) {
+	  gr_format = gformat;
+	}
 
 	/* check if we can write to the directory */
 	sprintf(buf, "%s/%ld", dumpdir, (long)time((time_t *)NULL));
@@ -426,20 +438,19 @@
 		draw_page(&state, NULL);
 
 		/*
-		 * dump out gif image
+		 * dump out image (default is jpeg)
 		 */
 		fprintf(stderr, "(full image)");
-		sprintf(buf, "xwintoppm -silent -name MagicPoint | "
-			"ppmquant 256 %s | "
-			"ppmtogif %s > %s/mgp%05d.gif",
-			childdebug, childdebug, dumpdir, page);
+		sprintf(buf, "import -window MagicPoint -colors 256 "
+                             "%s/mgp%05d.%s %s",
+                             dumpdir, page, gr_format, childdebug);
 		system(buf);	/*XXX security hole*/
 		fprintf(stderr, "(thumbnail)");
-		sprintf(buf, "giftopnm %s/mgp%05d.gif | "
-			"pnmscale 0.25 | ppmquant 256 %s | "
-			"ppmtogif %s > %s/mgp%05d.idx.gif",
-			dumpdir, page, childdebug, childdebug,
-			dumpdir, page);
+                sprintf(buf, "convert -colors 256 -geometry 25%% "
+                             "%s/mgp%05d.%s "
+                             "%s/mgp%05d.idx.%s %s",
+                             dumpdir, page, gr_format, 
+                             dumpdir, page, gr_format, childdebug);
 		system(buf);	/*XXX security hole*/
 
 		/*
@@ -474,14 +485,15 @@
 		fprintf(html, "<BR>Page %d: %s<BR>\n", page, page_title(page));
 		fprintf(html, "<HR>\n");
 		if (window_width < 0 || window_height < 0) {
-			fprintf(html, "<IMG SRC=\"mgp%05d.gif\" "
+			fprintf(html, "<IMG SRC=\"mgp%05d.%s\" "
 				"ALT=\"Page %d\">\n",
-				page, page);
+				page, gr_format, 
+                                page);
 		} else {
-			fprintf(html, "<IMG SRC=\"mgp%05d.gif\" "
+			fprintf(html, "<IMG SRC=\"mgp%05d.%s\" "
 				"WIDTH=%d HEIGHT=%d ALT=\"Page %d\"><BR>\n",
-				page, window_width, window_height,
-				page);
+				page, gr_format, 
+                                window_width, window_height, page);
 		}
 		fprintf(html, "<HR>Generated by "
 		    "<A HREF=\"http://www.mew.org/mgp/\";>MagicPoint</A>\n"
@@ -539,16 +551,20 @@
 	for (page = start_page; page <= maxpage; page++) {
 		if (window_width < 0 || window_height < 0) {
 			fprintf(html, "<A HREF=\"mgp%05d.html\">"
-				"<IMG SRC=\"mgp%05d.idx.gif\" "
+				"<IMG SRC=\"mgp%05d.idx.%s\" "
 				"ALT=\"Page %d\"></A>\n",
-				page, page, page);
+				page, 
+                                page, gr_format,
+                                page);
 		} else {
 			fprintf(html, "<A HREF=\"mgp%05d.html\">"
-				"<IMG SRC=\"mgp%05d.idx.gif\" "
+				"<IMG SRC=\"mgp%05d.idx.%s\" "
 				"WIDTH=%d HEIGHT=%d "
 				"ALT=\"Page %d\"></A>\n",
-				page, page, window_width / 4,
-				window_height / 4, page);
+				page,
+                                page, gr_format,
+                                window_width / 4, window_height / 4, 
+                                page);
 		}
 	}
 	fprintf(html, "<HR>\n");