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ANSI and ASCII art to PNG converter in C
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       __\___   \_  ____/     /\   /______ ___\_/__            /\
      /    \|     \/  _ \    /--\_____    \\   /  /\          /  \
    _/      |     /    \     \      |/     /      \ \ _ _____/    \_______
    \       |_____\____/     /      /      \____  /\/                    /
     \______|      \  \_____/\______       /\   \/  \   /\NSILOVE / C   /____ _
      \     |_______\__\___ \ \    \      /  \___\__/____
       \____|        /____/\_\/\__ /     / __/___ \     /\    ____
                     \    \ \     /     /_/ __   \/    /__\__/  _/ _____ ___
                 /\   \____\/    /     //   \    /    /    /    _>/    //__/\
                /  \           _/      \   //   /    /    /     \/    / \__\/
_ _________    /    \_______ _ \___    /_______/    /   _/ \____      \  /
           \  /                 \ \___/\       \_______/\\  \  \______/\/
            \/                   \_\  \ \_______\      \ \\/ \__\     \ \
                                    \__\/        \______\/ h7/dS!\_____\/

AnsiLove/C

Build Status

This is a complete rewrite of AnsiLove/PHP in the C programming language. It converts ANSi and artscene related file formats into PNG images. The project is considered as stable, current version is 4.0.0.

Specs

AnsiLove/C is strictly using the C99 standard to achieve high portability to all major operating systems. Supported compilers are GCC and Clang, others may work but aren't tested. We use Linux and OpenBSD for AnsiLove/C development.

Why C?

There were many reasons, most notably PHP interpreter independence and performance. A solid C foundation is just perfect for creating libraries and it can easily be embedded into applications. We already mentioned portability. What else? We wanted evolution. AnsiLove/C should not be understood as a port. It takes many different approaches (like processing binary font dumps or generating @2x Retina images), it is overall improved and introduces new features. While results tend to be the same, the codebase does not have much in common with it's ancestor.

Dependencies

AnsiLove/C uses the CMake build system and requires the libansilove library and header files.

Installing dependencies

  • OpenBSD: pkg_add -r cmake
  • NetBSD: pkgin install cmake
  • FreeBSD: pkg install cmake
  • Mac OS X: brew install cmake
  • Alpine Linux: apk add cmake gcc make musl-dev
  • Debian / Ubuntu / Mint: apt-get install cmake
  • Solus: eopkg install -c system.devel

For now, libansilove has to be installed manually.

Compiling

mkdir build
cd build
cmake ..
make

Installation

AnsiLove/C packages are available for:

OpenBSD

pkg_add ansilove

Pkgsrc (NetBSD, SmartOS, Mac OS X, etc.)

pkgin install ansilove

FreeBSD

pkg install ansilove

Solus

eopkg install ansilove

Features

The following formats are supported:

  • .ANS - ANSi (ANSI escape sequences: ANSI X3.64 standard)
  • .PCB - PCBoard Bulletin Board System (BBS) own file format
  • .BIN - Binary format (raw memory copy of text mode video memory)
  • .ADF - Artworx format, supporting custom character sets and palettes
  • .IDF - iCE Draw format, supporting custom character sets and palettes
  • .TND - TundraDraw format, supporting 24-bit color mode
  • .XB - The eXtended Binary XBin format, supporting custom character sets and palettes

Files with custom suffix default to the ANSi renderer (e.g. ICE or CIA).

AnsiLove/C is capabable of processing:

  • SAUCE records
  • DOS and Amiga fonts (embedded binary dump)
  • iCE colors

Even more:

  • Output files are highly optimized 4-bit PNGs.
  • Optionally generates additional (and proper) Retina @2x PNG.
  • You can use custom options for adjusting output results.
  • Built-in support for rendering Amiga ASCII.

Documentation

Synopsis

     ansilove [-dhirsv] [-b bits] [-c columns] [-f font] [-m mode] [-o file]
              [-R factor] file

Options

     -b bits     Set to 9 to render 9th column of block characters (default:
                 8).

     -c columns  Adjust number of columns for ANSI, BIN, and TND files.

     -d          Enable DOS aspect ratio.

     -f font     Select font for supported formats.

     -h          Show help.

     -i          Enable iCE colors.

     -m mode     Set rendering mode for ANS files. Valid options are:

                 ced     Black on gray, with 78 columns.

                 transparent
                         Render with transparent background.

                 workbench
                         Use Amiga Workbench palette.

     -o file     Specify output filename/path.

     -r          Create Retina @2x output file.

     -R factor   Create Retina output file with custom scale factor.

     -s          Show SAUCE record without generating output.

     -v          Show version information.

There are certain cases where you need to set options for proper rendering. However, this is occasionally. Results turn out well with the built-in defaults.

Fonts

We dumped many fonts as binary data right into AnsiLove/C, so the most popular typefaces for rendering ANSi / ASCII art are available at your fingertips.

PC fonts can be (all case-sensitive):

  • 80x25 Default (Code page 437)
  • 80x50 80x50 mode (Code page 437)
  • cp737 Greek (Code page 737)
  • cp775 Baltic (Code page 775)
  • cp850 Latin1 (Code page 850)
  • cp852 Latin2 (Code page 852)
  • cp855 Cyrillic (Code page 855)
  • cp857 Turkish (Code page 857)
  • cp860 Portuguese (Code page 860)
  • cp861 Icelandic (Code page 861)
  • cp862 Hebrew (Code page 862)
  • cp863 French Canadian (Code page 863)
  • cp865 Nordic (Code page 865)
  • cp866 Russian (Code page 866)
  • cp869 Greek (Code page 869)
  • terminus Terminus (Modern font, code page 437)

AMIGA fonts can be (all case-sensitive):

  • amiga (alias to Topaz)
  • microknight (Original MicroKnight version)
  • microknight+ (Modified MicroKnight version)
  • mosoul (Original mO'sOul font)
  • pot-noodle (Original P0T-NOoDLE font)
  • topaz (Original Topaz Kickstart 2.x version)
  • topaz+ (Modified Topaz Kickstart 2.x+ version)
  • topaz500 (Original Topaz Kickstart 1.x version)
  • topaz500+ (Modified Topaz Kickstart 1.x version)

Bits

bits can be:

  • 8 (8-bit)
  • 9 (9-bit)

Setting the bits to 9 will render the 9th column of block characters, so the output will look like it is displayed in real textmode.

Rendering Mode

mode can be (all case-sensitive):

  • ced
  • transparent
  • workbench

Setting the mode to ced will cause the input file to be rendered in black on gray, and limit the output to 78 columns (only available for ANS files). Used together with an Amiga font, the output will look like it is displayed on Amiga.

Setting the mode to workbench will cause the input file to be rendered using Amiga Workbench colors (only available for ANS files).

Settings the mode to transparent will produce output files with transparent background (only available for ANS files).

iCE Colors

iCE colors are disabled by default, and can be enabled by specifying the -i option.

When an ANSi source was created using iCE colors, it was done with a special mode where the blinking was disabled, and you had 16 background colors available. Basically, you had the same choice for background colors as for foreground colors, that's iCE colors.

Columns

columns is only relevant for .ANS, .BIN, and .TND files, and is optional. In most cases conversion will work fine if you don't set this flag, the default value is 160 for .BIN files and 80 otherwise.

SAUCE records

It's fine to use AnsiLove/C as SAUCE reader without generating any output, just set option -s for this purpose.

Who pulls the strings

AnsiLove/C is developed by Stefan Vogt (@ByteProject), Brian Cassidy (@bricas) and Frederic Cambus (@fcambus).

License

AnsiLove/C is released under the BSD 2-Clause License. See the file LICENSE for details.

Resources

GitHub: https://github.com/ansilove/ansilove

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