[English]

libjpeg-turbo decoder(libjpeg-turbo 解码器)

显示原文

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-turbo 是一个 JPEG 图像编解码器,它使用 SIMD 指令来加速 x86 上的基线 JPEG 压缩和解压缩, x86-64、Arm、PowerPC 和 MIPS 系统,以及 x86、x86-64 和 Arm 系统上的渐进式 JPEG 压缩。

详细介绍:https://libjpeg-turbo.org

库源: https://github.com/libjpeg-turbo/libjpeg-turbo

Install(安装)

sudo apt install libjpeg-turbo8-dev

Add libjpeg-turbo to your project(将 libjpeg-turbo 添加到您的项目中)

find_package(JPEG REQUIRED)
include_directories(${JPEG_INCLUDE_DIR})
target_link_libraries(${PROJECT_NAME} PRIVATE ${JPEG_LIBRARIES})

Usage(用法)

显示原文

Enable 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 Image caching(图片缓存) feature to ensure that the memory usage is within a reasonable range.


lv_conf.h 中启用 LV_USE_LIBJPEG_TURBO

请参阅以下示例。

应当注意,该解码器的每个图像需要消耗 图像宽度x图像高度x3 字节的RAM,

它需要与 Image caching(图片缓存) 功能相结合,以确保内存使用在合理的范围内。

Example

API

libjpeg_turbo

lv_libjpeg_turbo.h