mirror of
https://github.com/bevyengine/bevy
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# Objective
Add support for the [Netpbm](https://en.wikipedia.org/wiki/Netpbm) image
formats, behind a `pnm` feature flag.
My personal use case for this was robotics applications, with `pgm`
being a popular format used in the field to represent world maps in
robots.
I chose the formats and feature name by checking the logic in
[image.rs](a35ed552fa/crates/bevy_render/src/texture/image.rs (L76))
## Solution
Quite straightforward, the `pnm` feature flag already exists in the
`image` crate so it's just creating and exposing a `pnm` feature flag in
the root `Cargo.toml` and forwarding it through `bevy_internal` and
`bevy_render` all the way to the `image` crate.
---
## Changelog
### Added
`pnm` feature to add support for `pam`, `pbm`, `pgm` and `ppm` image
formats.
---------
Signed-off-by: Luca Della Vedova <lucadv@intrinsic.ai>
80 lines
4.1 KiB
Markdown
80 lines
4.1 KiB
Markdown
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## Cargo Features
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Bevy exposes many features to customise the engine. Enabling them add functionalities but often come at the cost of longer compilation times and extra dependencies.
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### Default Features
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The default feature set enables most of the expected features of a game engine, like rendering in both 2D and 3D, asset loading, audio and UI. To help reduce compilation time, consider disabling default features and enabling only those you need.
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|feature name|description|
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|android_shared_stdcxx|Enable using a shared stdlib for cxx on Android|
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|animation|Enable animation support, and glTF animation loading|
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|bevy_animation|Provides animation functionality|
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|bevy_asset|Provides asset functionality|
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|bevy_audio|Provides audio functionality|
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|bevy_core_pipeline|Provides cameras and other basic render pipeline features|
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|bevy_gilrs|Adds gamepad support|
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|bevy_gizmos|Adds support for rendering gizmos|
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|bevy_gltf|[glTF](https://www.khronos.org/gltf/) support|
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|bevy_pbr|Adds PBR rendering|
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|bevy_render|Provides rendering functionality|
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|bevy_scene|Provides scene functionality|
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|bevy_sprite|Provides sprite functionality|
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|bevy_text|Provides text functionality|
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|bevy_ui|A custom ECS-driven UI framework|
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|bevy_winit|winit window and input backend|
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|default_font|Include a default font, containing only ASCII characters, at the cost of a 20kB binary size increase|
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|filesystem_watcher|Enable watching file system for asset hot reload|
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|hdr|HDR image format support|
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|ktx2|KTX2 compressed texture support|
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|png|PNG image format support|
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|tonemapping_luts|Include tonemapping Look Up Tables KTX2 files|
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|vorbis|OGG/VORBIS audio format support|
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|webgl2|Enable some limitations to be able to use WebGL2. If not enabled, it will default to WebGPU in Wasm|
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|x11|X11 display server support|
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|zstd|For KTX2 supercompression|
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### Optional Features
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|feature name|description|
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|accesskit_unix|Enable AccessKit on Unix backends (currently only works with experimental screen readers and forks.)|
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|basis-universal|Basis Universal compressed texture support|
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|bevy_ci_testing|Enable systems that allow for automated testing on CI|
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|bevy_dynamic_plugin|Plugin for dynamic loading (using [libloading](https://crates.io/crates/libloading))|
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|bmp|BMP image format support|
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|dds|DDS compressed texture support|
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|debug_asset_server|Enable the "debug asset server" for hot reloading internal assets|
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|detailed_trace|Enable detailed trace event logging. These trace events are expensive even when off, thus they require compile time opt-in|
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|dynamic_linking|Force dynamic linking, which improves iterative compile times|
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|exr|EXR image format support|
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|flac|FLAC audio format support|
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|glam_assert|Enable assertions to check the validity of parameters passed to glam|
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|jpeg|JPEG image format support|
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|minimp3|MP3 audio format support (through minimp3)|
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|mp3|MP3 audio format support|
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|pnm|PNM image format support, includes pam, pbm, pgm and ppm|
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|serialize|Enable serialization support through serde|
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|shader_format_glsl|Enable support for shaders in GLSL|
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|shader_format_spirv|Enable support for shaders in SPIR-V|
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|subpixel_glyph_atlas|Enable rendering of font glyphs using subpixel accuracy|
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|symphonia-aac|AAC audio format support (through symphonia)|
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|symphonia-all|AAC, FLAC, MP3, MP4, OGG/VORBIS, and WAV audio formats support (through symphonia)|
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|symphonia-flac|FLAC audio format support (through symphonia)|
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|symphonia-isomp4|MP4 audio format support (through symphonia)|
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|symphonia-vorbis|OGG/VORBIS audio format support (through symphonia)|
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|symphonia-wav|WAV audio format support (through symphonia)|
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|tga|TGA image format support|
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|trace|Tracing support|
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|trace_chrome|Tracing support, saving a file in Chrome Tracing format|
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|trace_tracy|Tracing support, exposing a port for Tracy|
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|trace_tracy_memory|Tracing support, with memory profiling, exposing a port for Tracy|
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|wav|WAV audio format support|
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|wayland|Wayland display server support|
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|webp|WebP image format support|
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|wgpu_trace|Save a trace of all wgpu calls|
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|zlib|For KTX2 supercompression|
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