From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 5 May 2018 19:33:07 +0000 (+0300)
Subject: Update the font script to match latest ttf2png
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=9ffa823328620968642ffbf9920265e1af0dc21e;p=libs%2Fgl.git

Update the font script to match latest ttf2png
---

diff --git a/scripts/makefont.py b/scripts/makefont.py
index d24732ee..eb2c997a 100755
--- a/scripts/makefont.py
+++ b/scripts/makefont.py
@@ -1,13 +1,16 @@
 #!/usr/bin/python
 
-caps = list(range(ord("A"), ord("Z")+1))
+caps = [ord(c) for c in "ABCDEFGHIKLMNOPRSTUVWXYZ"]
 xchars = [ord(c) for c in "acemnorsuvwxz"]
 
 def convert_def(fn):
 	src = file(fn)
 
 	result = ""
-	header = ""
+	glyphs = {}
+	metrics = {}
+	kerning = []
+	codes = {}
 	cap_height = []
 	x_height = []
 	for line in src.readlines():
@@ -16,47 +19,64 @@ def convert_def(fn):
 			continue
 
 		parts = line.split()
+		values = map(int, parts[1:])
 
 		if parts[0]=="font":
 			tw, th, fh, fa, fd = map(int, parts[1:])
-			header += "native_size %d;\n"%fh
-			header += "ascent %.3f;\n"%(float(fa)/fh)
-			header += "descent %.3f;\n"%(float(fd)/fh)
+			result += "native_size %d;\n"%fh
+			result += "ascent %.3f;\n"%(float(fa)/fh)
+			result += "descent %.3f;\n"%(float(fd)/fh)
+		elif parts[0]=="code":
+			c, n = map(int, parts[1:])
+			codes[c] = n
+		elif parts[0]=="metrics":
+			metrics[values[0]] = values[1:]
 		elif parts[0]=="glyph":
-			g, x, y, w, h, ox, oy, a = map(int, parts[1:])
-			result += "glyph %d\n{\n"%g
-			result += "\ttexcoords %f %f %f %f;\n"%(float(x)/tw, float(th-y-h)/th, float(x+w)/tw, float(th-y)/th)
-			result += "\tsize %.3f %.3f;\n"%(float(w)/fh, float(h)/fh)
-			result += "\toffset %.3f %.3f;\n"%(float(ox)/fh, float(oy)/fh)
-			result += "\tadvance %.3f;\n"%(float(a)/fh)
-			result += "};\n"
-
-			if g in caps:
-				cap_height.append(h)
-			elif g in xchars:
-				x_height.append(h)
+			glyphs[values[0]] = values[1:]
 		elif parts[0]=="kern":
-			l, r, d = map(int, parts[1:])
-			result += "kerning %d %d %.3f;\n"%(l, r, float(d)/fh)
+			kerning.append(values)
+
+	for c, n in codes.iteritems():
+		h = metrics[n][1]
+		if c in caps:
+			cap_height.append(h)
+		elif c in xchars:
+			x_height.append(h)
 
 	if cap_height:
 		cap_height.sort()
-		header += "cap_height %.3f;\n"%(float(cap_height[len(cap_height)*2/3])/fh)
+		result += "cap_height %.3f;\n"%(float(cap_height[len(cap_height)*2/3])/fh)
 	if x_height:
 		x_height.sort()
-		header += "x_height %.3f;\n"%(float(x_height[len(x_height)*2/3])/fh)
+		result += "x_height %.3f;\n"%(float(x_height[len(x_height)*2/3])/fh)
+
+	for c, n in codes.iteritems():
+		_, _, ox, oy, a = metrics[n]
+		x, y, w, h, b = glyphs[n]
+		result += "glyph %d\n{\n"%c
+		result += "\ttexcoords %f %f %f %f;\n"%(float(x)/tw, float(th-y-h)/th, float(x+w)/tw, float(th-y)/th)
+		result += "\tsize %.3f %.3f;\n"%(float(w)/fh, float(h)/fh)
+		result += "\toffset %.3f %.3f;\n"%(float(ox-b)/fh, float(oy-b)/fh)
+		result += "\tadvance %.3f;\n"%(float(a)/fh)
+		result += "};\n"
+
+	for k in kerning:
+		l, r, d = k
+		result += "kerning %d %d %.3f;\n"%(l, r, float(d)/fh)
 
-	return header+result
+	return result
 
-def make_font(fn, size, ch_range, autohinter, margin, padding):
+def make_font(fn, size, ch_range, autohinter, margin, padding, distfield):
 	import maketex
 	import os
 
-	cmd = "ttf2png \"%s\" -o makefont-tmp.png -d makefont-tmp.def -t -p -s %d -m %d -n %d"%(fn, size, margin, padding)
+	cmd = "ttf2png \"%s\" -o makefont-tmp.png -d makefont-tmp.def -t -p -s %d -m %d -n %d -g"%(fn, size, margin, padding)
 	if ch_range:
 		cmd += " -r %d,%d"%ch_range
 	if autohinter:
 		cmd += " -a"
+	if distfield:
+		cmd += " -f %d"%distfield
 	if os.system(cmd):
 		raise Exception("Could not execute ttf2png")
 
@@ -83,10 +103,11 @@ if __name__=="__main__":
 	parser.add_argument("-m", "--margin", default=0, type=int, metavar="NUM", help="Margin around image edge in pixels")
 	parser.add_argument("-n", "--padding", default=1, type=int, metavar="NUM", help="Padding between glyphs in pixels")
 	parser.add_argument("-r", "--range", type=parse_range, metavar="START,END", help="Range of code points to include")
+	parser.add_argument("-f", "--distfield", default=0, type=int, metavar="NUM", help="Produce a distance field texture")
 	parser.add_argument("ttf", metavar="font.ttf", help="TrueType file to read")
 	parser.add_argument("outfile", help="MspGL font file to write")
 
 	args = parser.parse_args()
 
 	out = file(args.outfile, "w")
-	out.write(make_font(args.ttf, args.size, args.range, args.autohinter, args.margin, args.padding))
+	out.write(make_font(args.ttf, args.size, args.range, args.autohinter, args.margin, args.padding, args.distfield))