84 lines
4.6 KiB
Markdown
84 lines
4.6 KiB
Markdown
# Loupe
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An image viewer application written with GTK 4, Libadwaita and Rust.
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## Installing
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The latest version from the main branch is available from the build artifacts.
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Download bundle for:
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* [x86_64](https://gitlab.gnome.org/api/v4/projects/13923/jobs/artifacts/main/raw/org.gnome.Loupe.Devel.flatpak?job=flatpak) (Average desktop or laptop PC)
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* [aarch64](https://gitlab.gnome.org/api/v4/projects/13923/jobs/artifacts/main/raw/org.gnome.Loupe.Devel.flatpak?job=flatpak@aarch64) (Average phone, tablet, or Apple Silicon devices)
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Bundles will not be automatically updated after installation.
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## Features
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- Fast GPU accelerated image rendering with tiled rendering for SVGs
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- Extensive support for touchpad and touchscreen gestures
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- Build-in support for more than 15 image formats
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- Accessible presentation of the most important metadata
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- Sleek but powerful interface developed in conjunction with GNOME Human Interface Guidelines
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## Supported Formats
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| Format | View | Optional | ICC | CICP | EXIF | XMP | Animation | Library |
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|----------|------|----------|-----|------|------|-----|-----------|----------------------------|
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| AVIF | ✔ | ✔ | ✔ | ✔ | ✔ | ✘ | ✘ | libheif-rs + libheif (C++) |
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| BMP | ✔ | | ✘ | — | — | — | — | image-rs |
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| DDS | ✔ | | — | — | — | — | — | image-rs |
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| farbfeld | ✔ | | — | — | — | — | — | image-rs |
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| QOI | ✔ | | — | — | — | — | — | image-rs |
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| GIF | ✔ | | ✘ * | — | — | ✘ | ✔ | image-rs |
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| HEIC | ✔ | ✔ | ✔ | ✔ | ✔ | ✘ | ✘ | libheif-rs + libheif (C++) |
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| ICO | ✔ | | — | — | — | — | — | image-rs |
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| JPEG | ✔ | | ✔ | — | ✔ | ✘ | — | image-rs |
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| OpenEXR | ✔ | | — | — | — | — | — | image-rs |
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| PNG | ✔ | | ✔ | ✘ | ✔ | ✘ | ✔ | image-rs |
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| PNM | ✔ | | — | — | — | — | — | image-rs |
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| SVG | ✔ | | ✘ | — | — | ✘ * | — | librsvg |
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| TGA | ✔ | | — | — | — | — | — | image-rs |
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| TIFF | ✔ | | ✘ | — | ✔ | ✘ | — | image-rs |
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| WEBP | ✔ | | — | — | ✔ | ✘ | ✔ | image-rs |
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| Symbol | Meaning |
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|--------|------------------------------------------------|
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| * | Unclear if used in practice, needs research |
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| ✘ | Supported by format but not implemented yet |
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| ？ | Unclear if supported by format, needs research |
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| ✔ | Supported |
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## Building
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### GNOME Builder
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GNOME Builder is the environment used for developing this application. It can use Flatpak manifests to create a consistent building and running environment cross-distro. Thus, it is highly
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recommended you use it.
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1. Download [GNOME Builder](https://flathub.org/apps/details/org.gnome.Builder).
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2. In Builder, click the "Clone Repository" button at the bottom, using `git@gitlab.gnome.org/Incubator/loupe.git`
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or `https://gitlab.gnome.org/Incubator/loupe.git` as the URL.
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3. Click the build button at the top once the project is loaded.
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## Installation
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Depending on how you want it installed instructions can differ. If you
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used GNOME Builder to build it, clicking the bar at the top window will
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open a submenu with "Export Bundle". This will create a flatpak bundle,
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which can be installed on any system that supports flatpak.
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**In order for the Loupe flatpak to be able to read the directory images are installed in, you must install a bundle.**
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Once you have a bundle installed, development builds will work properly.
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## Contributing
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- [Code Documentation](https://incubator.pages.gitlab.gnome.org/loupe/doc/loupe/)
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### Conduct
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Loupe operates under the GNOME Code Of Conduct. See the full
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text of the Code Of Conduct [here](CODE_OF_CONDUCT.md).
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