Utility program to swap specified target transparent pixel to be at first position of colormap of input gif image

This is meant to be used with game engine that requires first position of color map attached with sprite image to be transparent color, so engine itself can render it properly.

As from research, gimp or other photo editing tool can do it but it requires manually (no batch processing), gimp scripting has no feature or API to access color map (instead although it has somewhat seems to do so but it access histogram colormap of image), gitclrmp utility tool is almost the one we want but we need custom solution.

Command line usage

tcolorswap red-value green-value blue-value input-file output-file

• red-value - red color component value
• green-value - green color component value
• blue-value - blue color component value
• input-file - input gif file to modify its color map
• output-file - output gif file to output the result

• ./autogen.sh
• ./configure
• make -j4
• sudo make install

Now you can execute the command, see Usage section for more information.

MIT, Angry Baozi https://abzi.co