libretro-thumbnails

Thumbnails for RetroArch, split into individual repositories to ease maintenance.

Install

Check out the repository, with all submodules, into RetroArch's thumbnails directory:

cd ~/.config/retroarch
git clone --recursive --depth=1 http://github.com/libretro-thumbnails/libretro-thumbnails.git thumbnails

Update

To bring in the latest thumbnails across all systems, use:

git pull --recurse-submodules
git submodule update --remote --recursive

Or by using the script which will maintain shallow clones (depth=1) and checkout master:

sh update_modules.sh

Usage

Thumbnails are installed into RetroArch config's thumbnails directory
There are three types of thumbnails:
- Named_Snaps are in game snapshots
- Named_Titles are title screen snapshots
- Named_Boxarts are the boxes or covers for games

Thumbnails follow the following naming convention:

thumbnails/Playlist Name/Named Type/Game Name.png

The following characters in playlist titles must be replaced with _ in the corresponding thumbnail filename:
```
&*/:`<>?\|"
```
Images must be .png format
Image resolution guidelines:
- Images with native width larger than 512px should be scaled down to 512px wide
- Images with native width of 512px or less should be added as-is
Substitute promotional material is acceptable when no official boxart is available
Use libretro-thumbnails-check to check for missing thumbnails

Testing

To check for files with invalid file names, use the following command....

find . -name '*[&\*:`<>?\\|"*]*'

This can be put in a .travis.yml file to enable automated testing.

language: bash
script:
    - find Named* -name '*[&\*:`<>?\\|"*]*' | grep "." && echo "The above are invalid filenames" && return 1 || echo "No invalid files found"
notifications:
  email: false

Thumbnail Server

The libretro-thumbnail server provides two functions...

.index Files

The .index files allow RetroArch to list the files available in the given directory. To build the .index files, run the following command...

make index

Packs

Thumbnail packs can be generated to create a zip of all thumbnails across each system. To build the thumbnail packs, run the following command...

PACKSDIR=../packs make packs

Change PACKSDIR to change which you would like the thumbnail packs to be built.

Credits

The art provided has many different sources. Thank you to many of the contributors and sites who have made this possible...

mkiisoft / libretro-thumbnails