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.. _libjpeg:
=====================
libjpeg-turbo decoder
=====================
**libjpeg-turbo** is a JPEG image codec that uses SIMD instructions to accelerate baseline JPEG compression and decompression on x86,
x86-64, Arm, PowerPC, and MIPS systems, as well as progressive JPEG compression on x86, x86-64, and Arm systems.
Detailed introduction: https://libjpeg-turbo.org
Library source: https://github.com/libjpeg-turbo/libjpeg-turbo
.. _libjpeg_install:
Install
-------
.. code:: bash
sudo apt install libjpeg-turbo8-dev
Add libjpeg-turbo to your project
---------------------------------
.. code:: cmake
find_package(JPEG REQUIRED)
include_directories(${JPEG_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} PRIVATE ${JPEG_LIBRARIES})
.. _libjpeg_usage:
Usage
-----
Enable :c:macro:`LV_USE_LIBJPEG_TURBO` in ``lv_conf.h``.
See the examples below.
It should be noted that each image of this decoder needs to consume ``image width x image height x 3`` bytes of RAM,
and it needs to be combined with the :ref:`overview_image_caching` feature to ensure that the memory usage is within a reasonable range.
.. _libjpeg_example:
Example
-------
.. include:: ../examples/libs/libjpeg_turbo/index.rst
.. _libjpeg_api:
API
---
:ref:`libjpeg_turbo`
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