acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
png.md (1021B)
      1 ```eval_rst
      2 .. include:: /header.rst
      3 :github_url: |github_link_base|/libs/png.md
      4 ```
      5 
      6 # PNG decoder
      7 
      8 Allow the use of PNG images in LVGL. This implementation uses [lodepng](https://github.com/lvandeve/lodepng) library.
      9 
     10 If enabled in `lv_conf.h` by `LV_USE_PNG` LVGL will register a new image decoder automatically so PNG files can be directly used as any other image  sources.
     11 
     12 Note that, a file system driver needs to registered to open images from files. Read more about it [here](https://docs.lvgl.io/master/overview/file-system.html) or just enable one in `lv_conf.h` with `LV_USE_FS_...`
     13 
     14 The whole PNG image is decoded so during decoding RAM equals to `image width x image height x 4` bytes are required.
     15 
     16 As it might take significant time to decode PNG images LVGL's [images caching](https://docs.lvgl.io/master/overview/image.html#image-caching) feature can be useful.
     17 
     18 ## Example
     19 ```eval_rst
     20 
     21 .. include:: ../../examples/libs/png/index.rst
     22 
     23 ```
     24 
     25 ## API
     26 
     27 ```eval_rst
     28 
     29 .. doxygenfile:: lv_png.h
     30   :project: lvgl
     31