# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1397522019 -10800
# Node ID 850335344428b9c3fe1dd0339f90d96c2afc2e33
# Parent  9fd4bf11cc1e467afea2d70272000aa7c0762dca
font2glyphmap tool

diff -r 9fd4bf11cc1e -r 850335344428 src/drawtext.h
--- a/src/drawtext.h	Mon Mar 18 06:06:26 2013 +0200
+++ b/src/drawtext.h	Tue Apr 15 03:33:39 2014 +0300
@@ -82,7 +82,7 @@
 int dtx_get_glyphmap_height(struct dtx_glyphmap *gmap);
 
 /* The following functions can be used even when the library is compiled without
- * freetype support. (TODO)
+ * freetype support.
  */
 struct dtx_glyphmap *dtx_load_glyphmap(const char *fname);
 struct dtx_glyphmap *dtx_load_glyphmap_stream(FILE *fp);
diff -r 9fd4bf11cc1e -r 850335344428 tools/font2glyphmap/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/font2glyphmap/Makefile	Tue Apr 15 03:33:39 2014 +0300
@@ -0,0 +1,24 @@
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+bin = font2glyphmap
+
+CC = gcc
+CFLAGS = -pedantic -Wall -g -I../../src -I/usr/local/include
+LDFLAGS = -L. -L/usr/local/lib -ldrawtext
+
+ifeq ($(shell uname -s), Darwin)
+	lib_so = libdrawtext.dylib
+else
+	lib_so = libdrawtext.so.0.0
+endif
+
+$(bin): $(obj) $(lib_so) $(font)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+$(lib_so): ../../$(lib_so)
+	rm -f $@
+	ln -s $< $@
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin) $(lib_so)
diff -r 9fd4bf11cc1e -r 850335344428 tools/font2glyphmap/src/font2glyphmap.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/font2glyphmap/src/font2glyphmap.c	Tue Apr 15 03:33:39 2014 +0300
@@ -0,0 +1,114 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "drawtext.h"
+
+#define SUFFIX	"glyphmap"
+
+struct coderange {
+	int start, end;
+	struct coderange *next;
+};
+
+int font2glyphmap(struct dtx_font *font, const char *infname, const char *outfname, int size, int rstart, int rend);
+
+int main(int argc, char **argv)
+{
+	int i, font_size = 12, suffix_len = strlen(SUFFIX);
+	struct coderange *clist = 0;
+
+	for(i=1; i<argc; i++) {
+		if(argv[i][0] == '-') {
+			if(strcmp(argv[i], "-range") == 0) {
+				struct coderange *node;
+				int start, end;
+
+				if(sscanf(argv[++i], "%d-%d", &start, &end) != 2) {
+					fprintf(stderr, "-range must be followed by a range of the form: START-END\n");
+					return 1;
+				}
+
+				if(!(node = malloc(sizeof *node))) {
+					perror("failed to allocate memory");
+					return 1;
+				}
+				node->start = start;
+				node->end = end;
+				node->next = clist;
+				clist = node;
+			} else if(strcmp(argv[i], "-size") == 0) {
+				char *endp;
+
+				font_size = strtol(argv[++i], &endp, 10);
+				if(endp == argv[i]) {
+					fprintf(stderr, "-size must be followed by the font size\n");
+					return 1;
+				}
+			} else {
+				fprintf(stderr, "invalid option: %s\n", argv[i]);
+				return 1;
+			}
+		} else {
+			char *basename, *dotptr, *outfile;
+			struct dtx_font *font;
+
+			if(!(font = dtx_open_font(argv[i], clist ? 0 : font_size))) {
+				fprintf(stderr, "failed to open font file: %s\n", argv[i]);
+				return -1;
+			}
+
+			basename = alloca(strlen(argv[i]) + suffix_len + 1);
+			strcpy(basename, argv[i]);
+
+			if((dotptr = strrchr(basename, '.'))) {
+				*dotptr = 0;
+			}
+
+			outfile = alloca(strlen(basename) + 64);
+
+			if(clist) {
+				while(clist) {
+					struct coderange *r = clist;
+					clist = clist->next;
+
+					sprintf(outfile, "%s_s%d_r%d-%d.%s", basename, font_size, r->start, r->end, SUFFIX);
+					font2glyphmap(font, argv[i], outfile, font_size, r->start, r->end);
+
+					free(r);
+				}
+				clist = 0;
+			} else {
+				sprintf(outfile, "%s_s%d.%s", basename, font_size, SUFFIX);
+				font2glyphmap(font, argv[i], outfile, font_size, -1, -1);
+			}
+		}
+	}
+
+	return 0;
+}
+
+int font2glyphmap(struct dtx_font *font, const char *infname, const char *outfname, int size, int rstart, int rend)
+{
+	struct dtx_glyphmap *gmap;
+
+	if(rstart != -1) {
+		dtx_prepare_range(font, size, rstart, rend);
+		if(!(gmap = dtx_get_font_glyphmap(font, size, rstart))) {
+			fprintf(stderr, "failed to retrieve unicode glyphmap (code range: %d-%d)\n", rstart, rend);
+			return -1;
+		}
+	} else {
+		dtx_prepare(font, size);
+		if(!(gmap = dtx_get_font_glyphmap(font, size, ' '))) {
+			fprintf(stderr, "failed to retrieve ASCII glyphmap!\n");
+			return -1;
+		}
+	}
+
+	if(dtx_save_glyphmap(outfname, gmap) == -1) {
+		fprintf(stderr, "failed to save glyphmap to: %s\n", outfname);
+		return -1;
+	}
+
+	return 0;
+}