136 lines
4.4 KiB
Python
136 lines
4.4 KiB
Python
#!/usr/bin/python2
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# MIT License.
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# Copyright (c) 2016 William Skellenger
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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# This small script is designed to mostly take a BDF file and convert it to a
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# format that can largely be cut/pasted as an Adafruit-format font.
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# It was written in an hour or so and did what I needed it to do.
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# I used it for one file. Maybe it bombs on other files.
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# William Skellenger, Feb 2016
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# (email: williamj@skellenger.net)
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# (Twitter: @skelliam)
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#
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# Usage: bdf2adafruit.py <somefont.bdf> > out.txt
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#
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# Once you have out.txt you can cut/paste the contents into a new font
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# header file as part of the Adafruit GFX library.
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import sys
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myfile = open(sys.argv[1])
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processing = 0
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getting_rows = 0
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chars = []
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bitmapData = []
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class Glyph:
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encoding = -1
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rows = []
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comment = ""
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offset = -1
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width = 0
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height = 0
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advance = 0
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xoffs = 0
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yoffs = 0
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def __init__(self, comment):
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self.comment = comment
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self.rows = []
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for line in myfile.readlines():
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if 'STARTCHAR' in line:
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processing = 1
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vals = line.split()
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g = Glyph(vals[1])
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#g.width = 8 #in this example always 8 bits wide
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elif 'ENDCHAR' in line:
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dataByteCompressed = 0
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dataByteCompressedIndex = 8
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g.height = len(bitmapData)
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for value in bitmapData:
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bitIndex = 0
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while bitIndex < g.width:
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bit = (value >> (7 - bitIndex)) & 0x01
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dataByteCompressed |= bit << (dataByteCompressedIndex - 1)
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dataByteCompressedIndex -= 1
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if dataByteCompressedIndex == 0:
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dataByteCompressedIndex = 8
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g.rows.append(dataByteCompressed)
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dataByteCompressed = 0
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bitIndex += 1
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if 8 != dataByteCompressedIndex:
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g.rows.append(dataByteCompressed)
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chars.append(g) #append the completed glyph into list
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processing = 0
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getting_rows = 0
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bitmapData.clear()
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if processing:
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if 'ENCODING' in line:
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vals = line.split()
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g.encoding = int(vals[1])
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elif 'DWIDTH' in line:
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vals = line.split()
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#g.advance = int(vals[1]) #cursor advance seems to be the first number in DWIDTH
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elif 'BBX' in line:
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vals = line.split()
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g.xoffs = 0
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g.yoffs = -(int(vals[2]) + int(vals[4]))
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g.advance = (int(vals[1]) + 1) #x bounding box + 1
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g.width = int(vals[1])
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elif 'BITMAP' in line:
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getting_rows = 1
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elif getting_rows:
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#g.rows.append(int(line, 16)) #append pixel rows into glyph's list of rows
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bitmapData.append(int(line, 16))
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print
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i=0
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for char in chars:
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char.offset = i
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print("\t", end='')
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num = 3
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for row in char.rows:
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if num != 3:
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print(" ", end = '')
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print("0x%02X," %(row), end = ''),
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i+=1
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num-=1
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if num == 1:
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print("\t\t", end = '')
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if num == 2:
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print("\t\t\t", end = '')
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print("\t/* 0x%02X %s */" %(char.encoding, char.comment))
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for char in chars:
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# offset, bit-width, bit-height, advance cursor, x offset, y offset
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print("\t{ %d, %d, %d, %d, %d, %d }, /* 0x%02X %s */" %(
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char.offset, char.width, char.height,
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char.advance, char.xoffs, char.yoffs,
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char.encoding, char.comment))
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