From: Kamaljeet Saini <kamaljeet_singh_saini@...>
Date: 2009-01-29T01:28:07+09:00
Subject: Re: Converting binary image file to bmp file using RMagick2.0

Hi,

I was able to get 1 binary files from dev. and tried the following code
but .bmp goes bad still. Possible please to look into and advice. Binary 
files attached as zip file.

require 'rmagick'
file_name = "C:/1.txt" # the binary file
image_file_name = "C:/1.bmp" # the expected file to be generated
image = Magick::Image.new(800, 480)
file = File.open(file_name,"rb").read

one = []
two = []
three = []

file.unpack('S*').each { |x|
  three << (x & 0x1F) * 8
  #puts "Three : #{three}"
  two << ((x >> 5) & 0x1F) * 8
  #puts "Two : #{two}"
  one << ((x >> 10) & 0x1F) * 8
  #puts "One : #{one}"

}

bufferscreen_height=480
bufferscreen_width=800
k=0
for i in 0...bufferscreen_height
  for j in 0...bufferscreen_width
    q=Magick::Pixel.new(one[k],two[k],three[k],0)
    #puts "i is : #{i} and j is : #{j}    R:#{one[k]} G:#{two[k]}
B:#{three[k]}"
    image.pixel_color(j,i,q)
    k += 1
 end
end
image.write(image_file_name)

thanks

Attachments:
http://www.ruby-forum.com/attachment/3217/1.zip

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