1 files changed, 87 insertions, 0 deletions
diff --git a/scripts/newbitmaps/fonts/make_ascii_bmps.py b/scripts/newbitmaps/fonts/make_ascii_bmps.py
new file mode 100755
index 00000000..df6083e1
--- /dev/null
+++ b/scripts/newbitmaps/fonts/make_ascii_bmps.py
@@ -0,0 +1,87 @@
+#!/usr/bin/python -tt
+# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import optparse
+import os
+import subprocess
+import sys
+import tempfile
+
+chars = '* 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ{}-_'
+
+def main():
+  """Convert a set of text chars into individual BMPs.
+
+  This uses ImageMagick, so don't run it inside the build chroot.
+  Not all characters in the world are supported.
+  """
+
+  parser = optparse.OptionParser()
+  parser.description = ' '.join(main.__doc__.split())
+  parser.add_option("--foreground", default='#9ccaec',
+                    dest="fg", action="store", metavar="COLOR",
+                    help="foreground color (%default)")
+  parser.add_option("--background", default='#607c91',
+                    dest="bg", action="store", metavar="COLOR",
+                    help="background color (%default)")
+  parser.add_option("--font", default='Helvetica',
+                    dest="font", action="store",
+                    help="font to use (%default)")
+  parser.add_option("--size", default='22', metavar="POINTSIZE",
+                    dest="size", action="store",
+                    help="font size (%default)")
+  parser.add_option('--dir', default='./outdir',
+                    dest="outdir", action="store",
+                    help="output directory (%default)")
+  (options, args) = parser.parse_args()
+
+
+  if not os.path.isdir(options.outdir):
+    os.mkdir(options.outdir)
+
+  # ARM U-Boot is very picky about its BMPs. They have to have exactly 256
+  # colors in their colormap. Imagemagick generally tries to reduce the
+  # colormap when it can, so we have to play some games to force it not to.
+  # We'll create a gradient file with 256 colors, and then make sure that all
+  # our rendered characters use the same colormap. This makes the resulting
+  # images larger, but it also means they'll work on x86 too. Sigh.
+  (handle, gradient_file) = tempfile.mkstemp(".png")
+  os.close(handle)
+
+  cmd = ('convert', '-size', '256x1',
+         'gradient:%s-%s' % (options.fg, options.bg),
+         gradient_file)
+  print ' '.join(cmd)
+  subprocess.call(cmd)
+
+
+  count=0
+  for ascii in chars:
+    outfile = os.path.join(options.outdir,
+                           "idx%03d_%x.bmp" % (count,ord(ascii)))
+    print outfile
+    cmd = ('convert',
+           '-font', options.font,
+           '-background', options.bg,
+           '-fill', options.fg,
+           '-bordercolor', options.bg,
+           '-border', '0x3',
+           '-gravity', 'Center',
+           '-pointsize', options.size,
+           'label:%s' % ascii,
+           '-remap', gradient_file,
+           '-compress', 'none',
+           '-alpha', 'off',
+           outfile)
+    print ' '.join(cmd)
+    count += 1
+    subprocess.call(cmd)
+
+  os.unlink(gradient_file)
+
+
+# Start it all off
+if __name__ == '__main__':
+  main()