嵌入式Linux framebuffer 的相关内容

文章 2024-03-05 来自：开发者社区

嵌入式linux中Framebuffer 驱动程序框架分析

1. 怎么编写字符设备驱动程序本文参考百问网驱动大全主设备号构造 file_operations 结构体，填充 open/read/write 等成员函数 ...

文章 2015-06-24 来自：开发者社区

嵌入式Linux基于framebuffer的jpeg格式本地LCD屏显示

在基于Linux的视频监控采集系统中,摄像头采集到的一帧视频图像数据一般都是经过硬件自动压缩成jpeg格式的,然后再保存到摄像头设备的缓冲区.如果要把采集到的jpeg格式显示在本地LCD屏上,由于我们的Linux系统没有移植任何GUI系统,就要考虑以下方面:1. 将jpeg格式解压缩为位图格式,也就是jpeg解码. 2. 将解码出来的位图格式输出到本地的LCD屏上. 在Linux系统下是通过写入....

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更新时间 2024-03-08 18:00:32

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