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Diffstat (limited to 'tools/ota/convert-to-bmp.py')
-rw-r--r-- | tools/ota/convert-to-bmp.py | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/tools/ota/convert-to-bmp.py b/tools/ota/convert-to-bmp.py deleted file mode 100644 index 446c09da8..000000000 --- a/tools/ota/convert-to-bmp.py +++ /dev/null @@ -1,79 +0,0 @@ -#!/usr/bin/python2.4 - -"""A simple script to convert asset images to BMP files, that supports -RGBA image.""" - -import struct -import Image -import sys - -infile = sys.argv[1] -outfile = sys.argv[2] - -if not outfile.endswith(".bmp"): - print >> sys.stderr, "Warning: I'm expecting to write BMP files." - -im = Image.open(infile) -if im.mode == 'RGB': - im.save(outfile) -elif im.mode == 'RGBA': - # Python Imaging Library doesn't write RGBA BMP files, so we roll - # our own. - - BMP_HEADER_FMT = ("<" # little-endian - "H" # signature - "L" # file size - "HH" # reserved (set to 0) - "L" # offset to start of bitmap data) - ) - - BITMAPINFO_HEADER_FMT= ("<" # little-endian - "L" # size of this struct - "L" # width - "L" # height - "H" # planes (set to 1) - "H" # bit count - "L" # compression (set to 0 for minui) - "L" # size of image data (0 if uncompressed) - "L" # x pixels per meter (1) - "L" # y pixels per meter (1) - "L" # colors used (0) - "L" # important colors (0) - ) - - fileheadersize = struct.calcsize(BMP_HEADER_FMT) - infoheadersize = struct.calcsize(BITMAPINFO_HEADER_FMT) - - header = struct.pack(BMP_HEADER_FMT, - 0x4d42, # "BM" in little-endian - (fileheadersize + infoheadersize + - im.size[0] * im.size[1] * 4), - 0, 0, - fileheadersize + infoheadersize) - - info = struct.pack(BITMAPINFO_HEADER_FMT, - infoheadersize, - im.size[0], - im.size[1], - 1, - 32, - 0, - 0, - 1, - 1, - 0, - 0) - - f = open(outfile, "wb") - f.write(header) - f.write(info) - data = im.tostring() - for j in range(im.size[1]-1, -1, -1): # rows bottom-to-top - for i in range(j*im.size[0]*4, (j+1)*im.size[0]*4, 4): - f.write(data[i+2]) # B - f.write(data[i+1]) # G - f.write(data[i+0]) # R - f.write(data[i+3]) # A - f.close() -else: - print >> sys.stderr, "Don't know how to handle image mode '%s'." % (im.mode,) |