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58 lines
1.5 KiB
58 lines
1.5 KiB
#!/usr/bin/env python
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# Copyright 2016 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Experimental Skia Multi-Picture Doc parser.
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from __future__ import print_function
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import fileinput
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import sys
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import struct
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if len(sys.argv) < 2:
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sys.stderr.write('Usage:\n\tpython %s MSKP_FILE [OUTPUT_SKP]\n\n'
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% sys.argv[0])
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exit(1)
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mskp_src = sys.argv[1]
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src = open(mskp_src, 'rb')
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magic_constant = b'Skia Multi-Picture Doc\n\n'
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magic = src.read(len(magic_constant))
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if magic != magic_constant:
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sys.stderr.write('Not a mskp file: "%s"\n' % mskp_src)
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exit(2)
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version, page_count = struct.unpack('II', src.read(8))[:2]
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print('MSKP version: ', version)
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print('page count: ', page_count)
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if version > 2 or version < 1:
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#TODO(halcanary): Remove support for version 1.
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sys.stderr.write('unsupported mskp version\n')
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exit(3)
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offsets = []
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for page in range(page_count):
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print('page %3d\t' % page, end='')
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if version == 1:
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offset, size_x, size_y =struct.unpack('Qff', src.read(16))
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print('offset = %-7d\t' % offset, end='')
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offsets.append(offset)
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elif version == 2:
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size_x, size_y =struct.unpack('ff', src.read(8))
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print('size = (%r,%r)' % (size_x, size_y))
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if len(sys.argv) >= 3:
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with open(sys.argv[2], 'wb') as o:
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if version == 2 or len(offsets) < 2:
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while True:
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file_buffer = src.read(8192)
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if 0 == len(file_buffer):
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break
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o.write(file_buffer)
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else:
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o.write(src.read(offsets[1] - offsets[0]))
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