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35 …_COLOR` but if a pixel has the `LV_COLOR_TRANSP` color (set in *lv_conf.h*) it will be transparent.
75 2. Give the image a name that will be used within LVGL.
77 …ing a binary will generate a `.bin` file that must be stored separately and read using the [file s…
78 5. Hit the *Convert* button. Once the conversion is finished, your browser will automatically downl…
80 …le, but only the color depth that matches `LV_COLOR_DEPTH` in *lv_conf.h* will actually be linked …
127 …ction, LVGL supports several built-in image formats. In many cases, these will be all you need. LV…
137 You can add any number of image decoders. When an image needs to be drawn, the library will try all…
143 …. It will just take every byte of the binary file you uploaded and write it as an image "bitmap". …
145 `header.cf` will be `LV_IMG_CF_RAW`, `LV_IMG_CF_RAW_ALPHA` or `LV_IMG_CF_RAW_CHROMA_KEYED` accordin…
149 …y can draw images only in *True color* format (or *Raw* but ultimately it will be in *True color* …
202 …/*Decode and store the image. If `dsc->img_data` is `NULL`, the `read_line` function will be calle…
264 LVGL will use registered image decoders automatically if you try and draw a raw image (i.e. using t…
288 Therefore, LVGL caches a given number of images. Caching means some images will be left open, hence…
290 …GL tries to optimize the process as much as possible (see below), but you will still need to evalu…
293 …IZE` in *lv_conf.h*. The default value is 1 so only the most recently used image will be left open.
298 …than cache entries, LVGL can't cache all the images. Instead, the library will close one of the ca…
307 If there is no more space in the cache, the entry with the lowest life value will be closed.
310 …nuously consume memory. For example, if three PNG images are cached, they will consume memory whil…
315 …ere is no easy way of detecting that the underlying file changed and LVGL will still draw the old …
317 …ache_invalidate_src(&my_png)`. If `NULL` is passed as a parameter, the whole cache will be cleaned.