#!/usr/bin/python
+caps = [ord(c) for c in "ABCDEFGHIKLMNOPRSTUVWXYZ"]
+xchars = [ord(c) for c in "acemnorsuvwxz"]
+
def convert_def(fn):
src = file(fn)
+ result = ""
+ glyphs = {}
+ metrics = {}
+ kerning = []
+ codes = {}
+ cap_height = []
+ x_height = []
for line in src.readlines():
line = line.strip()
if not line or line[0]=='#':
continue
parts = line.split()
+ values = map(int, parts[1:])
if parts[0]=="font":
tw, th, fh, fa, fd = map(int, parts[1:])
- result = "native_size %d;\n"%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"
+ glyphs[values[0]] = values[1:]
+ elif parts[0]=="kern":
+ 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()
+ result += "cap_height %.3f;\n"%(float(cap_height[len(cap_height)*2/3])/fh)
+ if x_height:
+ x_height.sort()
+ 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 result
-def make_font(fn, size):
+def make_font(fn, size, ch_ranges, autohinter, margin, padding, distfield):
import maketex
import os
- if os.system("ttf2png \"%s\" -o makefont-tmp.png -d makefont-tmp.def -t -p -s %d"%(fn, size)):
+ cmd = "ttf2png \"%s\" -o makefont-tmp.png -d makefont-tmp.def -t -p -s %d -m %d -n %d -g"%(fn, size, margin, padding)
+ for r in ch_ranges:
+ cmd += " -r %d,%d"%r
+ if autohinter:
+ cmd += " -a"
+ if distfield:
+ cmd += " -f %d"%distfield
+ if os.system(cmd):
raise Exception("Could not execute ttf2png")
result = "texture\n{\n"
- result += "wrap CLAMP_TO_EDGE;\n"
- result += maketex.make_tex("makefont-tmp.png")
+ result += maketex.make_tex("makefont-tmp.png", wrap="CLAMP_TO_EDGE")
result += "};\n"
result += convert_def("makefont-tmp.def")
return result
+def parse_range(s):
+ return tuple(map(int, s.split(',', 1)))
+
if __name__=="__main__":
import sys
+ import argparse
+
+ parser = argparse.ArgumentParser()
+ parser.add_argument("-s", "--size", default=10, type=int, metavar="NUM", help="Font size in pixels")
+ parser.add_argument("-a", "--autohinter", action="store_const", const=True, default=False, help="Force autohinter")
+ 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", action="append", 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()
- if len(sys.argv)<4:
- import os
- print "Usage: %s <font.ttf> <outfile> <size>"%os.path.basename(sys.argv[0])
- else:
- out = file(sys.argv[2], "w")
- out.write(make_font(sys.argv[1], int(sys.argv[3])))
+ out = file(args.outfile, "w")
+ out.write(make_font(args.ttf, args.size, args.range, args.autohinter, args.margin, args.padding, args.distfield))