X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=ttf2png.c;h=236fe9e4ef3ad3e07c70e64ae3f6136027d0d06d;hb=d7364c7589542039d662589f654518ff628217db;hp=2a087ff3ac02eff7acfe403821f6a6704e672f23;hpb=633be0c0c9ae91ab068ee84d4eb5f32328cf6280;p=ttf2png.git

diff --git a/ttf2png.c b/ttf2png.c
index 2a087ff..236fe9e 100644
--- a/ttf2png.c
+++ b/ttf2png.c
@@ -74,6 +74,8 @@ int convert_numeric_option(char, int);
 void convert_code_point_range(char, Range *);
 unsigned str_to_code_point(const char *, char **);
 void convert_size(char, unsigned *, unsigned *);
+void sort_and_compact_ranges(Range *, unsigned *);
+int range_cmp(const void *, const void *);
 unsigned round_to_pot(unsigned);
 void *alloc_image_data(size_t, size_t);
 int init_font(Font *, FT_Face, const Range *, unsigned, bool);
@@ -213,6 +215,16 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
+	if(!n_ranges)
+	{
+		ranges = malloc(sizeof(Range));
+		ranges[0].first = 0;
+		ranges[0].last = 255;
+		n_ranges = 1;
+	}
+	else
+		sort_and_compact_ranges(ranges, &n_ranges);
+
 	font.size = size;
 	err = init_font(&font, face, ranges, n_ranges, autohinter);
 	if(err)
@@ -404,6 +416,44 @@ void convert_size(char opt, unsigned *width, unsigned *height)
 	exit(1);
 }
 
+void sort_and_compact_ranges(Range *ranges, unsigned *n_ranges)
+{
+	unsigned i, j;
+
+	if(!*n_ranges)
+		return;
+
+	qsort(ranges, *n_ranges, sizeof(Range), &range_cmp);
+	for(i=0, j=1; j<*n_ranges; ++j)
+	{
+		if(ranges[i].last+1>=ranges[j].first)
+		{
+			if(ranges[j].last>ranges[i].last)
+				ranges[i].last = ranges[j].last;
+		}
+		else
+		{
+			++i;
+			if(i!=j)
+				ranges[i] = ranges[j];
+		}
+	}
+
+	*n_ranges = i+1;
+}
+
+int range_cmp(const void *p1, const void *p2)
+{
+	const Range *r1 = (const Range *)p1;
+	const Range *r2 = (const Range *)p2;
+	if(r1->first!=r2->first)
+		return (r1->first<r2->first ? -1 : 1);
+	else if(r1->last!=r2->last)
+		return (r1->last<r2->last ? -1 : 1);
+	else
+		return 0;
+}
+
 unsigned round_to_pot(unsigned n)
 {
 	n -= 1;