From: Ben Harris <bjh21@bjh21.me.uk>
Date: Mon, 17 Jul 2017 20:19:03 +0000 (+0100)
Subject: Very rough code for a single-line skeleton font.
X-Git-Tag: bedstead-002.000~129
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=66885289f0c7b0ada5dd843d9ede3e1c5b5a96da;p=bedstead-debian.git

Very rough code for a single-line skeleton font.

This uses a different dochar() function which currently emits a lot of
little path fragments in roughly the right places.
---

diff --git a/bedstead.c b/bedstead.c
index fff2d67..45fc759 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -189,6 +189,7 @@ struct param const *param = &params[0];
 
 void doprologue(void);
 void dochar(char const data[YSIZE], unsigned flags);
+static void dochar_plotter(char const data[YSIZE], unsigned flags);
 static void domosaic(unsigned code, bool sep);
 static void dopanose();
 
@@ -1238,6 +1239,8 @@ getpix(char const data[YSIZE], int x, int y, unsigned flags)
 		return (data[y] >> (XSIZE - x - 1)) & 1;
 }
 
+static bool plottermode = false;
+
 int
 main(int argc, char **argv)
 {
@@ -1254,7 +1257,10 @@ main(int argc, char **argv)
 				argv++; argc--;
 				goto next;
 			}
-		if (strcmp(argv[1], "--") == 0) {
+		if (strcmp(argv[1], "--plotter") == 0) {
+			plottermode = true;
+			argv++; argc--;
+		} else if (strcmp(argv[1], "--") == 0) {
 			argv++; argc--;
 			break;
 		} else if (argv[1][0] == '-') {
@@ -1331,6 +1337,10 @@ main(int argc, char **argv)
 	printf("DisplaySize: -24\n");
 	printf("AntiAlias: 1\n");
 	printf("FitToEm: 1\n");
+	if (plottermode) {
+		printf("StrokedFont: 1\n");
+		printf("StrokeWidth: 50\n");
+	}
 	printf("BeginPrivate: 2\n");
 	printf(" StdHW 5 [%d]\n", YPIX);
 	printf(" StdVW 5 [%d]\n", XPIX);
@@ -1374,8 +1384,12 @@ main(int argc, char **argv)
 		if (glyphs[i].flags & MOS)
 			domosaic(glyphs[i].data[0],
 				 (glyphs[i].data[0] & 0x20) != 0);
-		else
-			dochar(glyphs[i].data, glyphs[i].flags);
+		else {
+			if (plottermode)
+				dochar_plotter(glyphs[i].data, glyphs[i].flags);
+			else
+				dochar(glyphs[i].data, glyphs[i].flags);
+		}
 		printf("EndChar\n");
 	}
 	printf("EndChars\n");
@@ -1884,6 +1898,30 @@ dochar(char const data[YSIZE], unsigned flags)
 	emit_path();
 }
 
+static void
+dochar_plotter(char const data[YSIZE], unsigned flags)
+{
+	int x, y;
+
+#define CONNECT(dx, dy) do { \
+		moveto(x * XPIX_S, (YSIZE-y-1) * YPIX_S); \
+		lineto((x+dx) * XPIX_S, (YSIZE-y-1+dy) * YPIX_S); \
+	} while (0)
+	
+	clearpath();
+	for (x = 0; x < XSIZE; x++) {
+		for (y = 0; y < YSIZE; y++) {
+			if (GETPIX(x, y)) {
+				if (R) CONNECT(1, 0);
+				if (D) CONNECT(0, -1);
+				if (DR && !D && !R) CONNECT(1, -1);
+				if (DL && !D && !L) CONNECT(-1, -1);
+			}
+		}
+	}
+	emit_path();
+}
+
 static void
 tile(int x0, int y0, int x1, int y1)
 {