Hi, I don't know what type of files they are, but the script allows me to save to a bitmap just fine. But I do know they need to be in RGBA 4444 format, so I've followed what most of the tutorials for RGBA conversions said to do...shifting the bytes.
The major problem is that everything is in green, it's shifted up by x pixels, and it's..um..flipped from left to right. I've been working on this for a few weeks now and any insight to the problem is greatly appreciated. http://www.geocities.com/fisherdude_99/TestImg.zip import struct import sys import Image if len(sys.argv) < 3: print "usage: tobmp.py <file> <width>" sys.exit(1) width = int(sys.argv[2]) f1 = open(sys.argv[1], "rb") f1.seek(0, 2) size = f1.tell() f1.seek(0) ### write BITMAPFILEHEADER ### f2 = open(sys.argv[1] + ".bmp", "wb") f2.write("BM") bfSize = size+54 f2.write(struct.pack("L", bfSize)) # bfReserved1 and 2 f2.write("\x00\x00\x00\x00") bfOffBits = 54 f2.write(struct.pack("L", bfOffBits)) ### write BITMAPINFOHEADER ### biSize = 40 f2.write(struct.pack("L", biSize)) biWidth = width f2.write(struct.pack("L", biWidth)) biHeight = (size/ 2/ width) f2.write(struct.pack("L", biHeight)) biPlanes = 1 f2.write(struct.pack("H", biPlanes)) biBitCount = 32 f2.write(struct.pack("H", biBitCount)) # biCompression f2.write("\x00\x00\x00\x00") # biSizeImage f2.write("\x00\x00\x00\x00") # biXPelsPerMeter f2.write("\x00\x00\x00\x00") # biYPelsPerMeter f2.write("\x00\x00\x00\x00") # biClrUsed f2.write("\x00\x00\x00\x00") # biClrImportant f2.write("\x00\x00\x00\x00") ### write the bitmap data ### print f2.tell() ##must be 54 # since bitmaps are upside down, gotta flip it over data = f2.read() i = size-21 while i >= 0: nm = 0x100 f1.seek(i) temp1 = struct.unpack('B', f1.read(1))[0] peek = temp1 a = nm*(peek >> 24) & 0xff r = nm*(peek >> 16) & 0xff g = nm*(peek >> 8 ) & 0xff b = nm*(peek & 0xff) sh = (a<<24)|(r<<16)|(g<<8)|b f2.write(struct.pack('H', sh)) i -= 1 f1.close() f2.close() Usage: bmpcon.py testimg 100 Thanks a lot -- http://mail.python.org/mailman/listinfo/python-list
