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53 lines
1.0 KiB
ReStructuredText
53 lines
1.0 KiB
ReStructuredText
=============
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TJPGD decoder
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=============
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Allow the use of JPG (JPEG) images in LVGL.
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Overview
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--------
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- JPG is decoded in 8x8 tiles.
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- Read from file and C array are implemented.
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- Only the required portions of the JPG images are decoded,
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therefore they can't be zoomed or rotated.
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Usage
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-----
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If enabled in ``lv_conf.h`` by :c:macro:`LV_USE_TJPGD` LVGL will register a new
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image decoder automatically so JPG files can be used directly
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as image sources. For example:
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.. code:: c
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lv_image_set_src(my_img, "S:path/to/picture.jpg");
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Note that a file system driver needs to be registered to open images from
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files. Read more about it :ref:`file-system` or just
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enable one in ``lv_conf.h`` with ``LV_USE_FS_...``
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Converter
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---------
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Converting JPG to C array
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~~~~~~~~~~~~~~~~~~~~~~~~~
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- Use lvgl online tool https://lvgl.io/tools/imageconverter
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- Color format = RAW, output format = C Array
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Example
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-------
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.. include:: ../examples/libs/tjpgd/index.rst
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API
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---
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:ref:`lv_tjpgd`
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:ref:`tjpgd`
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:ref:`tjpgdcnf`
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